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  • 101.
    Lindman, Joel
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik.
    Westerlund, Lina
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik.
    DIMENSIONERING AV KONSTRUKTIONER I ROBOT STRUCTURAL ANALYSIS 2019: Skillnader och likheter med FEM-Design2019Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The basis of this thesis was that Kåver & Mellin Uppsala wanted todetermine if they should train their employees in the software RobotStructural Analysis. The company had licenses for the program that theydid not use due to lack of experience. The purpose of the project wastherefore to examine how Robot is used for designing structures and tocompare its usefulness to its competitor FEM-Design. The comparison ofusefulness was made by designing an identical structure in bothprograms. The focus of the study was to compare three main areas,workflow, areas of use and calculation results. This was made for themost common construction elements that were limited to concrete slabs,concrete walls, steel columns and steel beams.The study proved the programs to be similar. Designing steel profilesis more efficient in Robot. Another advantage of Robot is that there isan official online help page and a useful online forum, that FEM-Designlacks. One significant disadvantage of Robot is that the calculationsfor concrete are made with outdated national standards for Eurocode.The disadvantage was crucial and led to the conclusion that Kåver &Mellin Uppsala should wait for updated standards before using theprogram fully but they could start using Robot for load calculationsand steel design.

  • 102.
    Lindqvist, Sofia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Webbaserad informationskanal vid stamrenoveringsprojekt: Ett verktyg för informationsflöde från entreprenör till boende?2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Pipe replacements with bathroom renovations are complex construction projectshighly dependent on the construction work carried out in the residents’ homes whilethe residents still live there. This fact makes the flow of information from contractorsto the residents of an important success factor. In the current situation thecontractor, Aros Bygg & Förvaltning AB, notifies the residents’ information throughpaper notification, which gives managing the work involves a lot of paper work.This thesis examines whether and to what extent the contractor may replace thepaper notification with a web-based information channel. The investigation was madewith an existing tenant, Brf Jupiter 1 in Täby, as the reference object. The inquiry wasconducted with respect to an understanding of labor management’s attitude to aWeb-based computer support for the provision of information as well as to get anidea of the opportunity the residents have to absorb information through thecomputer and internet.Work Management’s approach to computer support is not negative but rathercautious. This is because all respondents agree that it is too early to implement a toollike this due to the fact that all residents will not be able to benefit from a Web-basedinformation channel. The survey made in the housing association indicates that manyof the residents are positive to receiving information via the internet. While surveyresults indicate that there are residents who do not have computer or internet whichis consistent with labor management’s discussion.My recommendation to the contractor will be to continue with paper alert, becauseafter all it works. If the database is in use the supervisory staff is required to providepaper notification to residents who do not have computer or internet as and at thesame time maintain and provide the database for the residents who want informationthrough this channel. In short, it means duplication of work management and thus willnot down the workload. Possibly, the paper information may be complemented withan informative website if the contractor wants to offer Internet-based information aswell.

  • 103.
    Lindroth, Sandra
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Grönskande balkongkonstruktioner: Jämförande arkivstudie av balkongkonstruktioner anpassade för urban odling2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Urban agriculture is a current topic and this study examines the possibility of cultivating on balconies in the city. The study was performed at Uppsala University and examines, from a structural engineering perspective, how different existing balcony/terrace structures are affected by cultivation. A cultivation balcony defined in the study as a balcony/terrace which is specifically designed for cultivation. Three units of study have been selected according to this criterion. Four factors were examined, these were loads, moisture/water, economy and cultivation. The study was conducted by studying the detailed drawings and interviewing the people concerned.

     

    The results show that one of the constructions is to be recommended but that there is great potential for developments in the area. A construction that is almost detached from the facade, showed the best results. This structure showed little influence and the least possibility of damage as a result of cultivation. The study also shows that cultivation is possible on a, of the author defined, standard balcony.

    The study has shown that there are few examples of the cultivation balconies in the current situation. The study also provides a suggestion of a design and construction of a cultivation balcony where different elements of the examined structures combined. The study also suggests areas that should be studied further for a development in the field of cultivation of alternative venues.

  • 104.
    Lingfors, David
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Johansson, Tim
    Gitter AB.
    Widén, Joakim
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Broström, Tor
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Target-based visibility assessment on building envelopes: Applications to PV and cultural-heritage values2019Inngår i: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 204, artikkel-id 109483Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Solar energy applications have, in recent years, become a common element in the urban landscape, especially on roofs and facades. However, it is important that the integration of solar energy in the built environment do not distort the fabric or expression of the existing building envelope, not at least in areas of high cultural-heritage values. The aesthetics depend, to a large extent, on how visible the new technology, such as photovoltaic (PV) panels, is. This paper describes a method for visibility assessment of building envelopes. It is referred to as target-based as it, in contrast to previously reported methods, bases the assessment from the perspective of the building envelope itself, rather than possible vantage points on the ground. The method was evaluated for two Swedish cities; Stockholm and Visby. In Stockholm, each building was evaluated based on its cultural-heritage values, solar irradiation and visibility. Deploying PV only on the roofs with the lowest cultural-heritage values, with insolation > 900 kWh/m2, and with no visibility from ground, results in a total PV yield of up to 2% of the total electricity demand. In Visby, various definitions of the vantage area were evaluated, from which the building envelope can be seen. It was found that the choice of vantage area greatly impacts the solar energy potential. If the vantage area is defined by the public domain, i.e., streets and other public open spaces, the non-visible roof area doubles compared to if all ground/terrain defines it. Compared to previous studies, the use of a vantage area, instead of discrete vantage points, seems to result in higher visibility of the roofs.

  • 105.
    Lockner, Anton
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    ENERGI- OCH KOSTNADSEFFEKTIVAMATERIALVAL I VÄRMESYSTEM: En jämförelse av rörmaterial i vattenburna värmesystem2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The thesis aims to compare differentpiping materials in heating systems interms of cost as well as to illustratethe impact of energy characteristics ofdifferent materials over its servicelife. The methods used for costcalculations regarding piping are alsoto be examined to highlight thedifferences between template basedcalculations and more carefully executedones. The work is delimited to discusspipes of steel, copper, plastics andcomposites. The aim is that the resultcan be compiled to illustrate the prosand cons of various materials whenevaluating investments.The main object of the survey is part ofa heating system in the office-block KVSommaren located in southern Stockholm.The configured piping system is designedwith the mentioned piping materials andis used to make up the data for flow andcost calculations. The differentmaterials are calculated in both aconventional manner with a supplementarycost for additional fittings and with amore accurate quantification of thecomponents. Both are then compared inorder to assess how they differ from oneanother. Supplier data and buildingproduct declarations are used fordetermining energy properties concerningproduction, transportation and recyclingopportunities.The study indicates that the moderncomposite material AluPEX results in alower investment cost and therefore isthe most appropriate material providedthat it maintains its function under theintended service life. It is also clearthat the methods used for costcalculations differ from each other andthat the template based calculations canbe avoided by rather simple means. Theeffects of emphasizing the differentenergy properties of the materials in acost calculation can be consideredsmall. However, it illustratesproperties which may eventually becomeof great importance.

  • 106.
    Louice, Kjellberg
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Hur kan kostnaden minskas för dörrmiljöer utan att försumma funktionen?2015Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The door and its surrounding, is an important part of all buildings. It often amount to a significant part of buildings total costs. The more demands of functions the largerdoes the costs grow.

    The purpose of this report is to analyze those demands and how to fulfill them.

    Another purpose is to examine of which reasons the cost grow and how to avoid it inthe best possible way. The study will be performed in collaboration with Bjerking AB. To define the demands a literature study will also be performed. The essential part however will be interviews with persons with different employment regarding doors. The literature study shows the demanding are very different depending on several aspects. Those could be such things as the number of people passing and how the building is meant to be used.

    The results of the interviews shows doors and their surroundings are very complicated. The reasons are many. One of them is that persons are limited to their own employment and don’t have the knowledge to see the full context. Increased communication is a solution to that problem among others.

    With increased knowledge it’s possible to select better and cheaper solutions. Such solutions is about both choosing products and planning buildings design.

    There seem to be possible to develop doors and its surroundings in several ways. The interviewed persons often mention the door closer as one product they would likedevelopment in. It’s important it closes hard enough but it makes the door heavy to open since both forces often are equal.

    The problem today in developing better products is to find a participant willing to paythe cost the development requires.

  • 107.
    Lucas, Jakobsson
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Alexander, Aspén
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Ombyggnation av operation gentemot alternativa byggmetoder: En konsekvensutredning för ombyggnad vid Löwenströmska sjukhuset2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Over the next few years, major investments in healthcare buildings is to be performed. Most surgical theaters are in need of technological upgrades as the technology is outdated. In most cases not only a refurbishment is performed but also an expansion. The basis for expansion, is due to a large increased number of patients, but also to the complexity of the refitment. Partly it's because evacuations are difficult to implement and the disturbance that occurs in conjunction with the refitment.

    Löwenströmska hospital undergoing a technical upgrad. The hospital has a relatively small operation department, and during the summer the business may be closed. Rebuilding in stages is done to rehabilitate the department technically. Work is underway for four summers and covers a total refurbishment of the premises. Although shutdown is possible, the project is still complex.

    The purpose of this study is to examine whether other construction methods than rebuilding had been of value to the surgical department at Löwenströmska hospital. The goal is to overlook the efficiency of production, reduce the complexity added through the conversion, and compare the methods economically. Methods that have been examined are a new construction of a department, new construction with partial conversion and modules. The work is also carried out to facilitate the choice of method for future projects.

    The basis of the work lies in discussions and interviews with persons involved in the project. And review of blueprints and technical specifications .

    The conclusion of this study is that depending on the chosen construction method various advantages is gained. Depending on the circumstances and opportunities provided , all results provide beneficial solutions. Therefore, all investigated methods individually reviewed for similar projects.

  • 108.
    Ludvig, Ohlström
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Joakim, Gunnarsson
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Extensiva gröna tak: En byggteknisk studie om takgenomföringar och de gröna takens problematik2018Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This report is made by students from the bachelor programme in construction engineering at Uppsala university and it covers different pass-through roofing methods on extensive green roofs. The report also examines which existing solutions need further development. Eighty percent of all leakage occurs where vertical and horizontal surfaces meet as in pass-through. Hence, well planned solutions are required that counteract the risk of leakage at critical section. In Sweden there are currently no standards, guidelines or certifications for extensive green roofs.

    The extensive green roof offers a delay of rainwater, but this attribute also causes problems such as an increased moisture load on the entire roof, but especially on pass-throughs. The report, consisting mainly of literature and interview studies, has investigated and assessed pass-through solutions. The report has resulted in improved solutions consisting of the fact that perforation should be raised above the surface of the superstructure to reduce the exposure to moisture. To reduce moisture load around pass-troughs, it is also recommended to construct a gravel layer and a boundary plate that prevents vegetation from spreading. The spreading of vegetation and the occurrence of undesired vegetation must also be counteracted by maintenance, which should be performed at least twice a year, spring and autumn.

    A well-known opinion in the field of construction is that extensive green roofs are not in need of root protection, but as the occurrence of unwanted vegetation may have undesirable effects on the roofing membrane of the green roof, the use of root protection is always advocated.

  • 109.
    Ludéen, Emma
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Nordin, David
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Optimal ljudnivå i bostäder: En undersökning om det är möjligt att maskera spolljud från wc med ventilationsljud2019Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    A lot of people experience sound pollution in their home even though the demands for sound levels are met. The majority of new constructions does not only fulfill the basic requirements but also reach the higher classifications that are presented by the Swedish Standards Institute. Even though this is the case, people still make complaints about being disturbed by noise. Bjerking AB states that they require an inquiry if it is possible to mask the noise from a disturbing sound with a background sound. The study also investigates if it is possible to mask the noise even more with a filtered background sound. The thought behind the masking of the sound is to add a background sound that is able to cover the disturbing sound and therefore make it harder to perceive. A test environment has been created based on the question about the possibility of masking a flushing sound from a toilet with a background sound. Twelve test persons have participated in the test using a signal when they identified the disturbing sound during different test scenarios. The result showed that it was in most scenarios possible to mask the disturbing sound with background sound and even better with a filtered background sound. Continuous research is needed to create a more secure method that studies the possibility of masking flushing noise from a toilet. Other types of noise should also be studied to gain a broader picture if masking can be applied to mask noise in residencies.

  • 110.
    Mattsson, Erik
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Fredén, John
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Prestationslön på byggarbetsplatsen: Lönesystemens konsekvenser för arbetsmiljö, resurser och kvalitet2014Independent thesis Basic level (professional degree), 180 hpOppgave
    Abstract [sv]

    I byggbranschen förekommer huvudlöneformerna tidlön och prestationslön. Tidlönen är en fast lön som utbetalas månadsvis medan prestationslöneformen innebär att arbetstagaren får betalt efter prestation, baserat på tid eller mängd. I regel är prestationslönen uppdelad på en fast del och en rörlig del, där den rörliga delen kallas överskott. Överskottet betalas vanligtvis ut var tredje månad efter en s.k. avstämning, där man kontrollerar produktionens resultat samt vilken ersättning arbetslaget eventuellt har rätt till. Branschens kollektivavtal, Byggavtalet, reglerar bland annat anställning, arbetstid och löner. Avtalet ägs gemensamt av Svenska Byggnadsarbetarförbundet, Byggnads, samt Bransch- och arbetsgivarorganisationen Sveriges Byggindustrier, BI. Det finns bestämda åsikter om prestationslönesystemen och de går ofta isär.

    Studiens syfte är att undersöka hur prestationslönesystemen påverkar ett byggnadsprojekt. De områden som behandlas är arbetsmiljö, kvalitet, resurser samt den allmänna inställningen. Genom kvalitativa intervjuer har berörda medarbetare i form av tjänstemän och yrkesarbetare fått uttrycka sin åsikt om lönesystemens konsekvenser. Resultatet sammanställs, jämförs och diskuteras. 15 respondenter har deltagit i studien under fyra platsbesök. Även Byggnads och BI har bidragit med information till studien.

    Byggnads strävar efter att utöka antalet arbetare på prestationslön medan BI vill öka möjligheten för en valbar löneform. Undersökningen visar att medarbetarna genomgående vill bevara någon form av incitament eftersom arbetslagets produktivitet och engagemang då anses bli högre. Flertalet yrkesarbetare vill behålla prestationslön medan tjänstemännen är öppna för andra löneformer. Prestationslönesystemen kan påverka ett projekt både positivt och negativt. Tjänstemännen upplever problematik med de återkommande avstämningarna. Beträffande arbetsmiljön framkommer det att risken för arbetsplatsolyckor och tillbud kan öka vid prestationslön, detta enligt respondenter i båda yrkesgrupperna. Kvaliteten på det utförda arbetet i projekten påverkas inte av lönesystemet, ambitionsnivån är hög gällande kvalitet. Det framkommer dock att det inte bara är löneformen som påverkar ett projekt, resultatet visar att den individuella inställningen många gånger är av stor vikt.

  • 111.
    Michaelsdotter, Rebecka
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Öhlund, Sanna
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    REDOGÖRELSE FÖR SPRICKARMERING FÖR KONSEKVENT DRAGNA BETONGPLATTOR PÅ MARK: Analys av skillnader mellan BBK 04 och Eurokod 2 med tillämpning av svenskt och danskt nationellt annex2013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    In this diploma work the approach of determining the required amount of reinforcement in slabs exposed to pure tension is processed, on behalf of Ramböll Uppsala. It is a well-known problem in the industry that there are uncertainties in the determining of the amount of crack reinforcement, especially for structures exposed to pure tension. Cracking caused during the time of dehydration in concrete slabs is the most common defect according to statistics made by CBI[1], which provides numbers as high as 35 % of all the defects caused on slabs are generated by cracks. Comparisons between Sweden's former national standard BBK 04, Building Regulations for concrete structures due to restrained forces of shrinkage, and the current European standard Eurocode 2 are carried out through theoretical studies and concludes with several examples of calculations. Rigorous calculations of both standards, BBK 04 and Eurocode 2 with application of the national annex in Sweden and Denmark are performed. Besides the comparison of the standards there’s also an alternative method, Annex D reported in Concrete Report 13 which is based on a Danish model and a table method reported in Eurocode 2, that’s been compared to.  It’s a simplified calculation formula which gives less the amount of reinforcement in fulfilling a crack width requirement if using the Danish value in comparison with the Swedish. This has been carried out to provide a deeper understanding of how to proceed in order to achieve a more optimized result than appears by calculation performed today. The result of this work has resulted in the development of a calculation document in excel, used for when determining the minimum amount of reinforcement for apportion of the cracks in slabs exposed to pure tension with respect to the current state regulations and when fulfilling a crack width requirement.

    [1] The Swedish institute of cement and concrete

  • 112.
    Molin Mårtensson, Marcus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Informationsöverföring mellan konstruktionsprogram: Användbarheten av ISM vid synkronisering av data mellan AECOsim Building Designer och Tekla Structures2016Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Information transfer between structural design programs

    This report examines whether the synchronization tool ISM is useful for structural engineers when transferring structural data between structural design programs AECOsim Building Designer and Tekla Structures.

    The report is written in collaboration with Byggnadstekniska Byrån, who see the need to streamline the modeling process. In their present workflow, a constructional object is modeled separately in AECOsim Building Designer and Tekla Structures. The time required for modeling can be reduced if ISM can be used to transfer a model from one program to another.

    The utility of ISM is decided from certain evaluation criteria. Each criterion represents data of a constructional component that is controlled for correct synchronization. The information consists of the component profile name, geometry, coordinates, material quality and fire class.

    The implementation of the evaluation follows a specific workflow, where various steel and concrete components are synchronized between the structural design programs. The component data is controlled and documented in four steps. Further, it is determined whether the data is judged to be correct or not.

    The result show synchronized building components that do not meet the mandatory evaluation criteria. For synchronization of structures containing building components of steel, the unfulfilled criteria leads to certain limitations in the technology. However, with a few adjustments to the designer modeling techniques, ISM can be useful in the synchronization of structures in concrete.

  • 113.
    Molinari, Marco
    et al.
    KTH, Stockholm, Sweden.
    Broström, Tor
    Högskolan på Gotland, Institutionen för kultur, energi och miljö.
    Exergy analysis of different solutions for humidity control in heritage buildings2011Inngår i: World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden: Volume 8 (Low-Energy Architecture), Linköping: Linköping University Electronic Press, Linköpings universitet , 2011, s. 2041-2048Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Energy use in the building stock represents a major contribution to the total energy use in developed countries. Increasing limitations to the energy demand of the new buildings have been imposed by the building codes in the last decades, which resulted in improved building envelopes.

    Yet, in many cases it is not either technically or economically feasible to improve the existing building shells. A typical example is represented by historical buildings, such churches and old buildings, which often may not be improved for aesthetical or economic reasons. Often poorly insulated, such buildings would require a high energy demand to keep them at the preferable hygro-thermal conditions. As a consequence they are often left unheated, which also affects the usability of these buildings. However, the risk of moisture damage often requires them to be slightly heated to a certain temperature.

    As the energy demand is linked to the possibility of improving the building shell, for instance by adding insulation or making it more airtight, the exergy approach gives interesting insights on the problem. Exergy analysis emphasizes the thermodynamic valuable part of the energy demand in the building and straightforwardly defines the minimum energy demand for a certain process. The energy demand being equal, it is still possible to lower the exergy demand and consumption. A lower exergy demand paves the way to the exploitation of renewable sources, such as solar power.

    Often the main task is to keep the RH humidity within a certain range. Aim of this paper is to perform a theoretical exergy analysis of three different solutions for lowering the RH in the building. The basic approach keeps the temperature of the indoor space at a constant level. A second approach-the so-called conservation heating- consists in letting the temperature vary according to the maximum allowed indoor relative humidity. In the third case the target is reached by means of a dehumidification process. Advantages and disadvantages of the different approaches are shown under the energy and exergy points of view.

    The present research is done within the framework of the “Spara och bevara” project, which targets cost-efficient solutions for the conservation and the use of heritage buildings in Sweden and the IEA Annex49 and ESF COSTexergy projects, which aim at energy-efficient buildings and communities through the application of the low-exergy approach.

  • 114.
    Monie, Svante
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Nilsson, Annica
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Åberg, Magnus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Electricity balancing capacity, emissions, and cost comparison of three storage-based local energy systems for variable power generation2019Inngår i: 9th International Workshop on Integration of Solar Power and Storage into Power Systems, 2019Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    This study compares three energy system setups for supplying the electricity and heat demand in a residential area. Two of the setups contain district heating and a combined heat and power unit. The first setup contains a thermal storage and the second contains an electric battery. The third setup is all electric (incl. the heat production). The second setup reduced the electricity balancing demand the most, but had the highest CO2,eq-emissions. The third setup had no emissions, but the highest cost. This setup also increased the balancing demand. The first system, with the thermal storage, performed most satisfying when electricity balancing capacity, CO2,eq-emissions, and costs were weighed together.

  • 115.
    Müller, Akulina
    Högskolan på Gotland, Institutionen för kultur, energi och miljö.
    Byggnadsminnesförklaring: ett långsiktig hållbart skydd?2012Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpOppgave
    Abstract [en]

    There are currently 2160 buildings in Sweden that are protected by law with the designation as a cultural heritage building, which is the strongest protection that can be obtained for a building of cultural historic significance. The purpose of this thesis is to research how strong and sustainable the protection of such a designation is and how you can motivate a revocation. Furthermore, this thesis aims to give an overall insight into all cases where there has been a revocation.

    To achieve the protection of a designation as a cultural heritage building, the object has to be of outstanding interest on account of its cultural historic value. In the first part, this thesis gives a short historic background of the cultural heritage law and its terms, like outstanding interest and cultural historic value. The County Administrative Board's documents about revocation are the main source for this research.

    There have been 24 cases of revocation and the frequency of such cases has increased in the past ten years. This possibly indicates a change of the general attitude towards revocation of a designation of cultural heritage buildings. In the geographic distribution of the cases the County of Skåne is overrepresented. The research also indicates that in many cases a building was a former publicly owned listed building. The fact that a buildings cultural historic value has been reduced is a frequent motive for a revocation. A reduced cultural historic value is often the consequence of modern additions to the building. The bases of this problem can be found in the formulation of the protective regulations, which often are too general. The Heritage Conservation Act, where the rules for the designation of a cultural heritage building can be found, is considered to be a strong legislation. However, this is not always reflected in the application by the County Administrative Board.

  • 116.
    Napp, Margus
    et al.
    Tallinn Univ Technol, Chair Bldg Phys & Energy Efficiency, EE-19086 Tallinn, Estonia..
    Wessberg, Magnus
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Kalamees, Targo
    Tallinn Univ Technol, Chair Bldg Phys & Energy Efficiency, EE-19086 Tallinn, Estonia..
    Broström, Tor
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Adaptive ventilation for climate control in a medieval church in cold climate2016Inngår i: The International Journal of Ventilation, ISSN 1473-3315, E-ISSN 2044-4044, Vol. 15, nr 1, s. 1-14Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Old medieval churches hold objects of great historical and cultural value: organs, altars, paintings. But they have no systems for indoor climate control or the church may be heated only at services. These conditions are inadequate for the preservation of cultural heritage. The objective of this paper is to assess an adaptive ventilation (AV) solution in a church for reduction of the relative humidity (RH) in an unheated church to prevent mould growth and disintegration of wooden parts. The operation principle of the system is to ensure ventilation in the church when water vapour content in the outdoor air is lower than that indoors, to lower the RH in the church. A case study in Hangvar Church in Gotland, Sweden, was conducted to test the performance of AV to reduce the RH in the church. Field measurements showed that AV has a positive impact on the indoor RH of the church. During the measurement period without climate control, the RH in the church was higher than 70% of 98% of the time; with AV, the indoor RH was higher than 70% only 78% of the time. Building simulation was carried out to test the performance and energy consumption of AV under different conditions. The simulations showed that auxiliary heating and airflow rate both have high impact on the system performance. The higher the heating power, the more effective the system is; thus, lower airflow rates are needed. Infiltration has also high impact on the system performance: the lower the infiltration rate, the better the AV performance is.

  • 117.
    Norbäck, Dan
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Arbets- och miljömedicin.
    Zock, J-P
    Ctr Res Environm Epidemiol CREAL, Barcelona, Spain.; IMIM Hosp del Mar, Municipal Inst Med Res, Barcelona, Spain.; CIBERESP, Madrid, Spain.
    Plana, E
    Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.; Municipal Institute of Medical Research (IMIM-Hospital del Mar), Barcelona, Spain.; CIBER Epidemiologia y Salud Publica, (CIBERESP), Madrid, Spain.
    Heinrich, J
    German Research Centre for Environmental Health, Institute of Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany.
    Tischer, C
    Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.; Municipal Institute of Medical Research (IMIM-Hospital del Mar), Barcelona, Spain.; CIBER Epidemiologia y Salud Publica, (CIBERESP), Madrid, Spain.
    Jacobsen Bertelsen, R
    Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway.
    Sunyer, J
    Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.; Municipal Institute of Medical Research (IMIM-Hospital del Mar), Barcelona, Spain.; CIBER Epidemiologia y Salud Publica, (CIBERESP), Madrid, Spain.; Pompeu Fabra Univ UFP, Barcelona, Spain.
    Künzli, N
    Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.; Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland.; University of Basel, Basel, Switzerland.
    Villani, S
    Department of Public Health, Experimental and Forensic Medicine, Unit of Biostatistics and Clinical Epidemiology, University of Pavia, Pavia, Italy.
    Olivieri, M
    Occupational Medicine, University of Verona, Verona, Italy.
    Verlato, G
    Epidemiology and Medical Statistics, University of Verona, Verona, Italy.
    Soon, A
    Department of Public Health, University of Tartu, Tartu, Estonia.; Estonian Research Council, Tartu, Estonia.
    Schlünssen, V
    Department of Public health, Aarhus University, Aarhus, Denmark.; The National Research Center for the Working Environment, Copenhagen, Denmark.
    Gunnbjörnsdottir, M I
    Allergy Department, Landspitali University Hospital, Reykjavik, Iceland.
    Jarvis, D
    Respiratory Epidemiology and Public Health Group, National Heart and Lung Institute, Imperial College, London, UK.
    Building dampness and mold in European homes in relation to climate, building characteristics and socio-economic status: The European Community Respiratory Health Survey ECRHS II2017Inngår i: Indoor Air, ISSN 0905-6947, E-ISSN 1600-0668, Vol. 27, nr 5, s. 921-932Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We studied dampness and mold in homes in relation to climate, building characteristics and socio-economic status (SES) across Europe, for 7127 homes in 22 centers. A subsample of 3118 homes was inspected. Multilevel analysis was applied, including age, gender, center, SES, climate, and building factors. Self-reported water damage (10%), damp spots (21%), and mold (16%) in past year were similar as observed data (19% dampness and 14% mold). Ambient temperature was associated with self-reported water damage (OR=1.63 per 10°C; 95% CI 1.02-2.63), damp spots (OR=2.95; 95% CI 1.98-4.39), and mold (OR=2.28; 95% CI 1.04-4.67). Precipitation was associated with water damage (OR=1.12 per 100 mm; 95% CI 1.02-1.23) and damp spots (OR=1.11; 95% CI 1.02-1.20). Ambient relative air humidity was not associated with indoor dampness and mold. Older buildings had more dampness and mold (P<.001). Manual workers reported less water damage (OR=0.69; 95% CI 0.53-0.89) but more mold (OR=1.27; 95% CI 1.03-1.55) as compared to managerial/professional workers. There were correlations between reported and observed data at center level (Spearman rho 0.61 for dampness and 0.73 for mold). In conclusion, high ambient temperature and precipitation and high building age can be risk factors for dampness and mold in homes in Europe.

  • 118.
    Nordström, Henrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Malingsbo Herrgård: Energiberäkningar och åtgärdsförslag för en karolinsk 1700-talsgård2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Malingsbo Estate is a 18th century wooden building located in the small village of Malingsbo. Through the years, the estate has had a wide variation of usages. Today, almost 70 years since the last major renovation it is being utilized 6 weeks per year.

     

    The following report, which has been made possible with the cooperation with the National Property Board (Statens Fastighetsverk) seeks to answer the following four questions. 1: What is the current climate inside the building 2: What are the resident’s views on the climate and the status of the building. 3: suggestions on how to, with the current building increase the period in which the inside climate is suitable for living. 4: Suggestions for lowering the energy usage for the building. These four points seeks to be answered with the following method: reports from Statens Fastighetsverk, surveys, field excursions and simulations in VIP-Energy.

     

    The result of this report which should be especially considered is the following: At present time with no heating in the building, residents feel the climate during July to be acceptable to good, while during October most thinks it is to cold. For increasing the duration where the building meets a temperature of 20 degrees Celsius to 24 weeks’ installations of a 12500 W heating system is needed. For lowering the energy consumption without making large changes to the building two options should be specially considered: Insulation in the foundation with 50 mm insulation, and installation of window shutters during week 45 to 10. A larger installation suitable is solar panels for heating.

  • 119.
    Norlén, Mikael
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
    Ett matsystem med biologiska jordbruksmetoder och växthusodling: Kost, jordbruk och energibalans i växthus2016Independent thesis Advanced level (professional degree), 20 poäng / 30 hpOppgave
    Abstract [en]

    The project examines the possibilities to develop a local and sustainable model for food production in Uppsala with focus on diet, farming methods and different types of greenhouse installations. With the simulation software VIP energy 3.1.1 the energy balance and temperature development of greenhouses of different materials were calculated for different operating cases. The results were also compared when the greenhouse was installed stand-alone or integrated to the wall of a small standard or passive house. With a starch based diet and biological farming methods research suggests it is possible to produce food efficiently without compromising the environment or our health. The yearly food needs for a family of four that follows the suggested diet was estimated to 4362 kg and the outdoor land required to produce it was calculated to 4676 m2 through organic yield statistics. The area could however be reduced to 2813 m2 if the only starch staple in production was potatoes. The tender growing season in a greenhouse constructed with a covering of 5 mm glass or 5-16Ar-5 mm was calculated to 85 and 148 days respectively. The energy use required for year round production of mushrooms in the respective greenhouses was calculated to 53 or 16 kWh/m2,year. Half hardy plants required 399 or 173 kWh/m2,year and tender plants 953 or 358 kWh/m2,year. When the greenhouses were connected to the wall of a small house the heating demand could be reduced by up to 22 % depending on the operating case.

  • 120.
    Nyström Vaara, Tobias
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Effektivare sprickbreddsberäkning för böjda och dragna betongtvärsnitt2015Independent thesis Advanced level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    I detta examensarbete redogörs för hur sprickbredder för betongkonstruktioner beräknas, enligt gällande norm. Speciellt fokus har lagts på hur tvärsnittsanalysering för böjda tvärsnitt, med avseende på betongens långtidseffekter, påverkar sprickbredder. Även hur normen styr den minsta mängd sprickfördelande armering som erfordras för betongkonstruktioner med dragspänningar redovisas. Resultatet är ett beräkningsdokument upprättat i excel, som beräknar sprickbredder för böjda och dragna tvärsnitt, som följer de krav som ställs av gällande norm. 

  • 121.
    Olof-Ors, Magnus
    Högskolan på Gotland, Institutionen för kultur, energi och miljö.
    Ytbearbetning av ersättningssten för kulturhistoriska byggnader2011Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpOppgave
    Abstract [en]

    The study investigates questions and considerations emerging when stone in historic buildings needs to be replaced. The focus is on the surface treatment of stone in sandstone façades in pre-industrial buildings. That means buildings constructed by traditional methods and craftsmanship without the use of modern technology.

    The research issue originates from the extensive stonework that is planned for the façades of the Stockholm Palace. The project includes the replacement of large quantities of damaged stone to newly cut stone. This raises the questions about the use of modern and rational methods for surface treatment on the replacement stone. The purpose of the study is to investigate the demands on the stone in large scale restoration projects and to find out what methods for finishing are available. In order to make observations from a recent project involving vast amounts of newly cut sandstone the reconstruction of the Dresden Frauenkirche is investigated.

    By conducting interviews with representatives from the current project at the Stockholm Palace and with persons involved in the planning and execution of the reconstruction of the Dresden Frauenkirche the considerations that emerge from a large scale project containing sandstone façades is exemplified. Literature on traditional methods for stone finishing is studied and the various stone finishes on the Stockholm Palace and on the Dresden Fraunekirche is investigated. Methods and technology of the modern stone industry is examined by visiting two large German stone producers, in addition a small Swedish workshop is also studied.

    The findings of the study indicates that important qualities of the traditional carved stone might be lost if modern machine finishing is used. Modern technology can however facilitate the shaping out of the stone. If such rational production methods is chosen it requires that the detailing of the stonework must be taken into account and the handwriting of the individual craftsman has to be allowed to appear in the finished result.

    The conclusion of the study points to that the best result for surface treatment of sandstone on historic buildings is achieved through traditional methods preformed by skilled craftsmen.

  • 122.
    Ousipov, Roni
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    MILJÖCERTIFIERINGSSYSTEMET MILJÖBYGGNAD I PRODUKTIONEN: En fördjupning inom området ”Material”2013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The environmental assessment system Miljöbyggnad is a Swedish system initiated by Bygga-Bo-Dialogen to assess buildings with regards to three main areas; “Energy”, “Indoor climate” and “Materials”. A building can obtain three different classifications depending on how well it manages to meet the demands. GOLD is the highest classification and is followed by SILVER and BRONZE. The majority of the measures needed to comply with the demands are done during the design phase. During the production phase a considerable amount of work is required to make sure to document the built in products and make sure they do not contain any dangerous substances.

    The thesis is based on the experiences retrieved by working with Miljöbyggnad in Skanska’s project Sickla Udde skola which is aiming for the highest classification GOLD. Interviews have been conducted with employees of Skanska working with the system in order to take part of their experiences. The thesis identifies difficulties linked to working with the main area “Materials” during the production phase. It also describes the available product data bases used to simplify the work with the system. Furthermore the thesis gives suggestions on how to work with Miljöbyggnad during the production phase.

  • 123.
    Patey, Julia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Managing Delivery Deviations: Improving the Flow of Claim Reports2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The principal objective of this paper is to map the process of managing delivery

    deviations at construction sites and to suggest measures that could be taken to

    improve the routines of reporting delivery deviations. Delivery deviations are defined

    as different kinds of lack in precision in delivery of material to construction sites, such

    as delay in time or poor quality of goods by suppliers selected and contracted by the

    procurement unit at Skanska. The initiative springs from the increasing focus on

    supplier’s performance due to their great impact on the profitability of the company

    and from the need of improving their performance since they are generally very poor

    in the construction industry (Darvik & Larsson 2010).

    The investigation draws mainly on qualitative research such as in-depth interviews

    with production personnel managing deliveries at a daily basis. The results show that

    as the situation is today nearly no deviations are reported. This is in first hand due to

    the fact that the need of reporting has not been sufficiently communicated, secondly,

    due to fears of excessive administrative work and thirdly because it’s given low

    priority compared to other responsibilities. It has also been found that deviations are

    managed differently depending on category; some by a phone call and others by email,

    this makes the issue more complicated since one solution might not be sufficient to

    improving the report flow of all kinds of deviations.

    A possible solution is to improve IT-tools. This will help to pick up at least those

    managed in written. Other solutions are to involve higher-level managers in the

    change process to motivate the project personnel to change their routines and use

    more innovative tools.

  • 124.
    Pennanen, Oskar
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik. Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Syed, Simon
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik. Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Social hållbarhet i renoveringsprocessen: En studie om hur dialog, jämställdhet och trygghet främjas vid ombyggnationer av bostäder2018Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This report examines the correlation between social sustainability and the renovation process, focusing on the aspects; dialogue, gender equality and security. They were chosen after an interpretation of needs was done with help from a literature study. It concluded that the three chosen aspects were most beneficial to focus on from a socially sustainable perspective.

    Through interviews, a model of all stages of Uppsalahem's renovation process have been created to find opportunities for development with regard to the chosen aspects. The report begins with a comprehensive background description of today’s state and knowledge regarding renovation needs, social sustainability, civil dialogue and also an introduction of Uppsalahem. The main part of the report starts with an account of interviews in the form of a clarification of Uppsalahem's current renovation process. The main part also presents the results from a deeper literature study with regard to the selected aspects. In the final sections, the aspectsare linked to the renovation process, which then leads to conclusions summarized in the areas; renovation, dialogue,equality and security.

    The study has shown, among other things, that a neighbourhood security survey as a method of making the residential area more secure in association with the renovation can benefits theresidents. Housing company have also deemed to benefit by constructing a good dialogue.. It also appears that the action package is a progressive method that favors social sustainability,but is also a method with great development potential.

  • 125.
    Persson, Fredrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Byggnadsteknik.
    Ytterväggar: En jämförelse och livscykelskostnadsanalys2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This report discusses the constructionof different types of exterior wallconstructions and analyses wall layers.Standard wall constructions from theSwedish building contractors NCC andSkanska and also from the materialproducer Isover have been chosen for theresearch. Life cycle cost analysis hasbeen made to conclude the mostprofitable wall type, seen from asustainable and economic perspective.The calculations have been made for aperiod of 50 years.The report shows that building with wellinsulated walls is a more profitablesolution both economically and whatconcerns sustainability even though thehigher investment. However, when wallssimilar insulation properties are beingcompared, the study proves that lowerinvestment cost is more profitable.The report introduces requiredconstruction techniques of walls inorder that the reader should understandwall constructions with different layersand properties. The essay shows theimportance of properly constructed wallsto avoid air leakage and moisturedamage.The essay has been implemented byliterature studies, contacts with NCCand Skanska and by energy calculationsmade by hand and using the software VIPEnergy.

  • 126.
    Persson, Staffan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Indigenous Materials in Modern Buildings: for low energy houses in West Africa2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Burkina Faso is one of the poorest countries in the world. This landlocked country in the west has an extremely warm climate. Temperatures over 45°C are not uncommon and there is an almost constant need to keep the buildings cool to maintain a temperate indoor climate. Air-conditioning is an option to maintain the temperature but it overloads the power grid and only a few people can afford it. This thesis examines, through laboratory experiments, the thermal and mechanical properties that can be obtained by vibrating clayey soil and mixing it with water, lime or cement and organic fiber (Bissap). The report also examines different building projects utilizing local materials, both of a traditional and more modern nature.Energy required to produce building elements of soil is negligible compared to that of concrete and steel. Soil can be used in constructing houses but it is sensitive to water.The insulation is inadequate for a passive house so an extra layer of insulating material is required.The experiments performed during this project were inconclusive so it is impossible, from the results in this paper, to say if vibration is a good method for forming a building material of soil. The high water content needed, is however a major problem, shrinkage was about 20% and cracks were hard to avoid. Further investigations into the subject is necessary.

  • 127.
    Persson Thurén, Gustav
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Småhusproduktion: Utvecklingsmöjligheter hos JM AB2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The Swedish building contractor JM

    Region Öst would like to to investigate

    the possibilities of developing and

    streamlining the production of singlefamily

    houses. JM are producing singlefamily

    houses with prefabricated frames

    at a rate of about two houses per week.

    During construction, the different tasks

    are performed by JM’s own production

    staff but also by various

    subcontractors.

    When examining the schedules of recently

    produced projects, it appears that all

    the houses are more or less completed

    eight weeks before the customer moves in

    to the house. During those eight weeks

    several operations are conducted such as

    inspections, installation of appliances

    and cleaning procedures. The inspection

    period constitutes between 25 and 35% of

    the complete construction period.

    By conducting interviews, it has been

    discovered that this final phase is an

    essential security buffer for delays and

    errors that often occur. Reducing the

    time needed for inspection requires that

    all activities are properly conducted

    with the right quality from start.

    After analyzing the results of the

    interviews and the comparison of project

    schedules, the following conclusions

    have been made:

    • The time required for

    inspections at the end of each project

    can be reduced if at the same time

    quality inspections and management of

    subcontractors are improved during the

    whole of the construction period.

    • The construction rate is

    difficult to increase as it is depending

    on the supply capacity from the house

    supplier.

    • The experience feedback at JM

    can be improved, mainly through feedback

    to the production staff at the beginning

    of new projects

  • 128.
    Pettersson, Fredrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Tvärkraftsdimensionering av armerad betong: En utredning av beräkningsförfarandet2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This report is about the shear force design of reinforced concrete according to Europe’s common dimension rules, Eurocode. The purpose is to describe the calculation procedure and the background to the formulas and expressions that occurs. Furthermore results from different calculation methods (hand calculations and computer calculations) will be compared to see how they differ.

    The goal with this is to go through the parts of Eurocode dealing with shear force and that this will lead to a clear review of these. You should also be able to see how results and the calculation procedure differ between different calculation methods. The reason of that is to see if it, in some cases, can be worth to spend some more time on calculations by hand.

    By the report you can see that, in many cases, the calculations made by hand leads to a smaller amount of shear reinforcement than the calculations in the computer programs. It may therefore be worth to calculate some designs by hand, especially since there was quite a difference in some cases. This is of course a judgment that has to be made for every single case by its own, since it takes considerably longer time to calculate a construction by hand than in a computer program.

  • 129.
    Pihl, Andreas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    RENOVERING AV MILJONPROGRAMMET TILL PASSIVHUS: Implementering av tysk prefabteknik2009Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Construction accounts for about 35 percent of the total Swedish energy consumption and most of the energy is used by the large housing stock from the so-called “Million program”.

     

    In the national action plan the government has put forward in energy efficiency. It is mentioned that existing buildings account for more than 90 percent of what is expected to be the housing stock within the coming 50 years. In order to meet environmental objectives its required that the existing stock be reviewed for energy efficiency.

     

    The goverment is now initiating a national framework with a budget of SEK 300 million Swedish crowns per year for five years, starting in 2010 to achieve the goal on energy efficient buildings. Energy efficiency of buildings in both new construction and above all within the existing stock are addressed. In order to use this money as effectively as possible it is necessary to have a good plan, and adequate knowledge of minimizing energy use in the buildings will be done the possible way.

     

    In Germany, the use of Passive House technology have been successive and increases with steady pace. In Sweden we have not come as far. It is mainly in new production that the Passive House concept has been suitable in Germany, but it has also been proven that it is possible to refurbish buildings similar to the so-called Million program houses to Passive Houses. Prefabricated facade elements have been used to this puspose.

     

    This is a technology that is still unknown of in Sweden. It has good potential to be developed towards the industrialization of the prefabricated components aimed for the refurbishment of the Million program stock.

     

    Meanwhile Swedish contractors are waiting for results from a refurbishment project in the city of Alinsås, where buildings in the neighborhood Brogården were recently renovated with Passive House technology. The first measurement data will be available by the spring 2010. Alingsås has launched a starting point for the Swedish construction industry with a cencept that applies passive house technology?

     

    This work has studied how the construction industry looks at the refurbishment of the Million program stock to Passive Houses and wheater a smiliar concept as the one used in Germany with prefabricated facade elements are interesting for the Swedish market today. Literature study was carried out on the Passive House concept and on the German model. A series of interviews with various stakeholders from the construction industry was conducted.

     

    The findings are that there is not much interest to refurbish the stock of Million program towards Passive Houses. However, there is an interest for a large refurbishment towards low energy houses. In this concept, aspects of the Passive House concept are taken and adapted to the refurbishment towards low energy houses. The concept doesn´t take into account thermal briding and insulation of the ground floor, wich is considered to be too extesive and costly.

  • 130.
    Poulsen, Magnus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Underhålls- och driftplanering inom Svenska kyrkan: Hur ser kontrollen ut hos en av Sveriges största fastighetsägare?2013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This diploma work handles how some parishes of the Swedish Church administrate their building properties.The report also includes how some external property managers in Sweden work with maintenance plans and other maintenance issues. Further, a number of deficiencies have been identified and suggestions to workarounds are treated. The conclusions drawn in this thesis are based on the author´s experience in the field, performed interviews, and literature studies. The result of the work shows a general lack of knowledge in many parishes what concerns regulatory requirements, properties with no maintenance plan and substandard supervision resulting in unnecessary and expensive repairs. Based on these results, different plans for the maintenance of the building properties of the Swedish Church has been proposed.

  • 131.
    Reichert, Daniel
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Boström, Mikael
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Betongkonstruktioner i vattenverk: Vägledning vid projektering2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Many of today’s waterworks were built in the 1950s to 1970s and today they showsigns of damage and great wear on the concrete structures of the pools. There arelarge needs of renovation of the existing pools, but also an increasing need for newfacilities since cities are growing. This thesis aims to investigate the occurrence andcause of damages that can occur on concrete pools in waterworks and the demandson the tightness and durability of the structure. The target of the thesis is tofind out which factors are behind the requirements and how these can be taken inconsideration when designing new waterworks.

    The thesis has resulted in a guideline aimed at structural engineers, who lackexperience in designing waterproof structures, and intends to complement thedevelopment of design requirements. The use of the guideline is illustrated at the endthrough a simplified design example.

    The thesis has also shown that there are no general requirements for tightness anddurability for pool structures in waterworks, nevertheless there are many factors thatneeds to be considered, hence the requirements are project-specific.

  • 132.
    Råbock, Arvid
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Höga hus med deformerbara fundament på pålar: Pålkrafters avvikelse visavi klassisk teori samt förskjutningar beroende av vindlast2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    When forces in foundation piles are calculated according to classic theory, thefoundation are assumed to be infinitely rigid which means that the foundation will notbend. High buildings need their whole width to be stable and use the ground floorwall as a foundation. But when, for example windows are needed in the ground floorwall, the stiffness of the foundation decreases which change the forces in the piles. Inthis report the difference of pile forces versus classic theory has been analyzed, and ifpile forces can be calculated as in classic theory. Further on, the effects of the wallmovement were analysed and how the buildings crack safety would be affected by themovement at the ground floor. From conclusions of the results, it seems that we arenot able to calculate the forces i the piles with classic theory when openings havebeen made in the ground floor wall. Instead we need a program like FEM-Design tocalculate these pile forces. Calculation with FEM-Design also gives the movement andthe internal forces of the building which can be useful in further design.

  • 133.
    Schaumburger, Emelie
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Lorenz, Lydia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    En jämförelse mellan träbjälklag: En undersökning om vilket träbjälklag som är mest fördelaktigt vid olika spännvidder2018Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Rapporten behandlar tre sammansättningar av träbjälklag och när det är mest fördelaktigt att använda de olika bjälklagen ur de tre aspekterna bjälklagshöjd, kostnad och materialåtgång. De tre sammansättningarna av träbjälklag som presenteras i denna rapport är ett plattbjälklag av CLT, korslimmat trä, ett ribb-bjälklag bestående av en fläns av CLT och liv av limträ och slutligen ett ribb-bjälklag med en sammansättning av en fläns av CLT och liv av LVL, fanérträ. Rapporten fokuserar på frågeställningen utifrån tre olika verksamheter; bostad, kontor och affärslokal och är framtagen för att hjälpa beställare och projektörer att optimera val av bjälklag efter de behov och krav som finns för de specifika projekten. Rapporten undersöker när det är mest fördelaktigt att använda de olika bjälklagstyperna utifrån de krav och förutsättningar beställaren/projektörerna har på projektet. Detta utifrån de tre aspekterna kostnad, materialåtgång och bjälklagshöjd. Rapporten är framtagen med hjälp av beräkningar genomförda i dataprogrammet Calculatis by Stora Enso och rapporten har genomförts i samarbete med Byggnadstekniska Byrån Sverige AB och Dala Massivträ AB. Bakgrunden till rapporten grundar sig i de rådande klimatförändringar som i snabb takt påverkar vår jord. För att minska denna påverkan och förstöring är behovet av att bygga med förnybara material stor samtidigt som användandet av dessa material inte får leda till slöseri. Detta, i samband med ett ökat behov av längre spännvidder, leder till att låg bjälklagshöjd, materialåtgång och kostnad är viktiga aspekter att behandla. Resultatet visar att valet av bjälklag i princip alltid står mellan plattbjälklag och ribb-bjälklag då resultaten mellan de två olika sammansättningarna av ribb-bjälklag skiljer relativt lite. Resultatet visar även att det ur materialåtgång och ekonomisk synpunkt är mest fördelaktigt att använda ribb-bjälklag istället för ett plattbjälklag. Däremot visar resultatet att det ur en tredje synpunkt, bjälklagshöjd, är mest fördelaktigt att välja ett plattbjälklag vid små spännvidder och ett ribbbjälklag vid stora. Slutligen lämnas rekommendationer för hur beställare och aktörer under projekteringsskedet ska resonera vid val av bjälklagstyp.

  • 134.
    Simonsson, Adam
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Redovisning av dörrar och dörrpartier i offentliga lokaler: Problem och förslag till förbättringsåtgärder2013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    Today, the requirements on doors and door sections in buildings are often many and

    tightly restricted. Especially in public buildings, the requirements for safety and

    functionality must cover the needs of larger groups of people. These strict

    requirements have often led to doors and door sections in public buildings being very

    complex and difficult to correctly install without any complications.

    This diploma work has been carried out in cooperation with Werket Architects,

    which estimates a high percentage of flaws regarding aforementioned components, in

    projects of the type described. The company therefore wanted to investigate how

    they could develop their remit in door production, which is the projection and design

    of blueprints. By taking part of installers opinions on how they want the blueprints of

    doors and door - sections to be designed for the best installation possibilities,

    develop¬ment areas, and to some extent improvements regarding the company's use

    of accounting techniques, could be provided to the company.

    The study shows, among other things, that there is a possibility of development in the

    functional descriptions that entail the doors' fitting components. The technique that

    Werket Architects uses to present these components does not allow the detailed

    description of functions that is often required. Furthermore a part of the study shows

    that the problems regarding doors and door sections usually are based on more than

    simply how the architects choose to present their blueprints. It instead shows that

    the lack of knowledge in key parts, such as locks and alarms, at architectural firms also

    greatly contributes to the insufficient end results.

  • 135.
    Sjöblom, Adam
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Arborén, Felicia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Hållbar lösning kring kramlor och deras infästning i natursten2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Cramps have been used throughout the history in masonry constructions. With technological development, the materials and methods have been different in time.

    This report is an attempt in a structural way; to describe how the use of cramps has been historically and how it can be made today. A comparison is presented with the common most used materials, focusing on durability and environmental sustainability. Among the materials both older, well-tried, and materials that is relatively new on the market is presented.

    This report has been made in cooperation with Bylero AB, due to their restoration project of Norrsunda church in Märsta. The report is aiming on finding a replacement for lead that historically has been used in conjunction with the cramps.

    Cramps that before was made by forged steel, are today being replaced with stainless steel. The recommendation is also to replace lead with chemical anchors when cramps are being attached. If possible, remove the cramps and replace it with a construction entirely made of stones.

  • 136.
    Skoglund, Gabriel
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Zamanian, Soheil
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Analys av hur byggnadens höjd påverkar energiförbrukningen i flerbostads- och kontorshus2013Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This diploma work has been carried out in collaboration with the building contractor Sh Bygg Fastighetsutveckling AB in Uppsala with the intention to investigate how the height of a building affects various energy aspects such as transmission losses, infiltration, and the specific energy usage. Three different reference objects have been studied. The reference objects have been simulated for four different heights in the calculation program VIP-Energy.

    The results show that an increase in floor number can lead to both advantages and disadvantages. As the number of floors increases, transmission losses per square meter floor area decreases. However, as the height of the building increases, the reduction rate decreases. The infiltration on the other hand shows signs of reduction in the beginning only to increase later on as the building gains height. At the same time, the differences in the specific energy usage are very marginal. In a building with a lot of internal heat production along with an active cooling system, this value can increase in accordance to the height of the building, while it can instead decrease in a residential building with no active cooling system.

    The greatest energy savings due to the increased number of floors can be achieved on the lower levels. The higher the building, the lower the observed differences become. However, this may vary for different buildings. From an energy perspective; there are no golden rules as to what are the ideal numbers of floors. Multiple parameters determine the most optimal height for a building. Therefore, every construction should be studied individually to establish its most energy efficient design.

  • 137.
    Skoglund, Oskar
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Förstärkning av stålpelare i befintlig yttervägg2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    Det här examensarbetet är utfört som ett uppdrag åt Byggteknik AB.Problematiken som examensarbetet behandlar är att förstärka en pelaresom är inbyggd i en i övrigt färdig vägg. Anledningen tillförstärkningen kan till exempel vara att en felaktig dimension av enpelare byggs in i väggen. Förstärkningsåtgärden kommer att bestå avatt plåtar med olika storlek och utsträckning längs med pelaren svetsasfast, vilket ger en ökad stabilitet och bärförmåga hos en pelare.Arbetets huvudmoment har bestått av litteraturstudier för attundersöka olika tillvägagångssätt att räkna på pelarens stabilitet ochbärförmåga, samt beräkningar utifrån valda metoder. Det här har letttill resultat som redogör för den relativa skillnaden mellan olikaförstärkningssätt och påverkan av olika lastförutsättningar.De slutsatser som kan dras av studien är att då enbart små förbättringarav pelarens bärförmåga krävs, så rekommenderas en förstärkning sominte löper hela vägen längs med pelaren. Den här rekommendationeninnebär att arbetsinsatsen och materialkostnaden hålls nere.Studien visar att om man vill nå en så hög bärförmåga som möjligt så ären förstärkning som sträcker sig längs med hela pelaren mer effektiv.Bärförmågan per kubikmillimeter förstärkningsmaterial blir då högre.

  • 138.
    Skoog, Erik
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Wilhelmsson, Sara
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Energiuppföljning i bostäder, idag och i framtiden: En utvärdering och utveckling av hur energiuppföljning används i bostadsprojekt2016Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The aims of this thesis were to evaluate how Skanska Hus Norr works with energy audits in housing projects and provide improvement suggestions in that area.

    The evaluation was conducted through interviews with two property management companies in Uppsala. We also interviewed managers and energy engineers at Skanska to review the use of internal resources and evaluated if these resources can be used more efficiently.

    The results show that Skanska Hus Norr fulfill all the necessary prerequisites to perform thorough energy audits in housing projects. The study also shows that one of the problems is lack of time for project and production managers.

    The conclusions of the thesis recommend Skanska Hus Norr to schedule follow-up meetings regarding energy and to hire a person who can act as energy coordinator.

  • 139.
    Soto, Andres
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Frå BKR till Eurokod: Dimensionering i Eurokod2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    From January 1st 2011 the use of Eurocode will be mandatory for all construction

    projects. Eurocode is the common European set of struc-tural design codes which will

    replace BKR (Boverkets Kon-struktionsregler). BKR is the Swedish set of structural

    design codes that was used up until December 31 2010. For consulting firms this will

    cre-ate a need for them to invest in the standards and in education for the

    coworkers. This will involve both time and costs for the company.

    The purpose and aim of this master thesis is the development of compute examples

    and calculations aid by dimensioning with Euro-code. The content of the report

    consists of a short introduction of Euro-code; its description and its purpose.

    A short retrospective of the elderly structural designs and BKR. The main part

    consists of the compute mode for the different structural parts in different materials.

    Different expressions and coefficients will be explained.

    This master thesis is created to meet the needs of Byggkonsulten Widberg.

    Byggkonsulten Widberg is a consultant firm in Uppsala which carries out different

    structural assignments.

    With help of the developed compute examples the coworkers can learn and

    understand the compute mode in a quicker way. They will also be able to dimension

    different structural parts in an effective and simple way with help of the compute aid.

    &#8195;

  • 140.
    Strandberg, Paulien
    et al.
    Lund University, Faculty of Engineering, Division of Building Materials.
    Balksten, Kristin
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Donarelli, Anna
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Sustainable insulation of historical wooden and stone buildings with lime-hemp2017Inngår i: ICBBM 2017 Proceedings of the 2nd International Conference on Bio-Based Building Materials / [ed] Sofiane Amziane; Mohammed Sonebi; Karine Charlet, 2017, s. 651-655Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this multidisciplinary project lime-hemp is studied as a thermal insulating material for the renovation of historic timber and brick buildings*). Focus is on buildings in the historic city of Visby on the Swedish island of Gotland in the Baltic sea. Many historic buildings in Visby have over the past decades been thermally insulated with materials such as mineral wools and polystyrene. Due to this, damage caused by moisture and microbial growth has increased. As a consequence, cultural and historical values have been damaged. Lime-hemp is a sustainable building material that consists of hemp shiv and building limes. It works differently than conventional insulating materials; in addition to good thermal insulation properties, it also has good thermal mass and moisture buffering capacity. This project will study the durability of the lime-hemp, especially microbial growth and moisture problems, and opportunities for renovation of historic buildings, while creating a good indoor climate and preserving historical values. Lab-studies as well as full-scale studies are conducted. The aim of the project is to sustainably improve energy efficiency while preserving historical values, without durability problems.*) The project started in September 2016 and results are not expected until earliest autumn 2017. The article will therefore give an outline of the project and some preliminary findings.

  • 141.
    Strandberg-de Bruijn, Paulien
    et al.
    Lund Univ, Div Bldg Mat, S-22100 Lund, Sweden.
    Donarelli, Anna
    Swedish Natl Heritage Board, S-62122 Visby, Sweden.
    Balksten, Kristin
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Full-scale Studies of Improving Energy Performance by Renovating Historic Swedish Timber Buildings with Hemp-lime2019Inngår i: Applied Sciences, E-ISSN 2076-3417, Vol. 9, nr 12, artikkel-id 2484Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    With an increased focus on reducing greenhouse gas emissions, energy saving is of great importance in all sectors of society. EU directives set targets for member states to reduce energy use in buildings. Energy saving in historic buildings requires special measures, balancing energy-saving renovations against the preservation of heritage values. Traditional constructions are open to vapor diffusion and generally work differently from modern constructions. Modern materials in traditional constructions sometimes damages the original material as they are usually diffusion-tight. The aim of this study was to investigate whether hemp-lime could be used as an insulation material to improve the energy efficiency of historic timber building envelopes with a rendered facade in Sweden. The objective was to determine the actual energy savings for space heating. An additional objective was to determine the actual thermal transmittance and to study thermal buffering through in-situ measurements in a full-scale wall renovated with hemp-lime. Two full-scale wall sections were constructed at the Energy and Building Design laboratory at Lund University: A traditional post-and-plank wall with a lime render (80 mm), and a post-and-plank wall with a hemp-lime render (90 mm). Energy use for space heating was monitored continuously over a period of one year. The wall with a hemp-lime render required 33% less energy for space heating than the traditional post-and-plank wall with a lime render. This was accomplished without changing the framework, appearance or material in the render and without drastically changing the hygric properties of the facade. From the gathered data, the thermal transmittance (U-values) for both walls was calculated using two different methods, one based on material properties and the other based on energy use data. For both walls, thermal transmittance based on actual energy use data during the heating period was lower than what was expected from their material properties. This indicates that more material properties than thermal conductivity and material thickness need to be taken into account when performing energy use calculations. With hemp-lime, a renovation can be accomplished without damaging the timber structure and wooden slats, and it can be done with local traditional materials and building methods with no difference in appearance to a traditional lime render. This allows for heritage values to be preserved, while also allowing the building to comply with modern standards and with increased thermal comfort and reduced energy use.

  • 142.
    Svensson, Viktor
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Lindqvist, Joakim
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    LÖNSAMHETSKALKYL AV FUKTSÄKERHETSANSVARIG VID RENOVERING: En fallstudie av ett projekt där ByggaF-metoden har använts2014Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    The so called “ByggaF-method” is a relatively new Swedish method to stop moisture from being built into a building. The method should prevent damages on buildings as a result of mould growth and moisture. The purpose of the method is to include moisture control in the entire construction

    process, from the projecting phase and all the way to the management phase. Up until now, there is no proof if the method is profitable or not and no studies have been made on the topic. Therefore the rationale of this study is to show if a part of the method is in fact profitable from a financial point of view.

    The study is based on a renovation project of a building from the 1960 s in the outskirts of Stockholm. The building went through a major renovation 2006 which was poorly executed and led to major indoor environment problems. The current property owner consequently wanted the new renovation to be executed in a highly secure way from a moisture control point of view.

    One part of the method is that there is a full time moisture safety inspector at the construction site who ensures that the moisture control plan, which has been established during the projecting phase, is followed. Any deviation from this plan is documented and a deviation report is made. The study is based on these deviation reports. The reports have been analysed and calculations have been carried out to estimate the cost of the potential damages that could have occurred if the deviations had not been detected. This has led to a figure on how profitable the method really is. 

  • 143.
    Söderström, Mikael
    et al.
    KanEnergi Sweden AB.
    Broström, Tor
    Högskolan på Gotland, Avdelningen för Kulturvård.
    Energieffektivisering i Karlstad stift2010Rapport (Annet vitenskapelig)
    Abstract [sv]

    Karlstad stift har under 2007 och 2008 genomfört vad man kallar ”Klimatprojektet”. Projektet består av tre delar; energiplanering, underhållsplanering och utbildning.Syftet är att stötta stiftets samfälligheter genom att dels genomföra energikartläggningarav sammanlagt 516 byggnader och dels underhållsplanera drygt 900 byggnader. Alla anställda inom samfälligheterna har dessutom genomgått en grundläggandeutbildning i energi- och miljöfrågor.

    Byggnaderna inom Karlstad stift använder idag ca 32 000 MWh energi fördelat påolika energislag där elanvändningen är dominerande med ca 18 000 MWh. Energikartläggningarnavisar att det sammantaget finns en besparingspotential på ca 30 %av energianvändningen med ca 40 % sänkta kostnader som följd genom effektiviseringav energianvändningen och byte av värmekällor.

    Underhållsplaneringen har genomförts enligt REPABs modell och samtliga byggnaderhar underhållsplanerats i programmet Summarum. Både energi- och underhållsplaneringenhar framför allt givit bra förutsättningar för att underlätta budgetarbetetinom samfälligheterna.

    Under projekttiden har dessutom en bra dialog mellan stift, samfälligheter, konsulter,antikvarier och entreprenörer startat. Man har börjat få en bättre förståelse förvarandras synsätt, framför allt hur man ser på antikvariska aspekter.

    Karlstad stift fortsätter nu med att stötta samfälligheterna till exempel genomdriftutbildning för vaktmästare och genom gemensamma upphandlingar av olikaåtgärder och el och man skall dessutom försöka dela med sig av erfarenheter ochmetoder för att sprida kunskaperna om energieffektivisering och underhållsplaneringtill andra stift i landet.

    Denna rapport har författats av Mikael Söderström Rosén på KanEnergi Sweden ABmed stöd av Tor Broström vid Högskolan på Gotland som också är beställare avrapporten. Arbetet har genomförts med ekonomiskt stöd från Energimyndighetensforskningsprogram ”Spara och bevara – energieffektivisering i kulturhistoriskt värdefullabyggnader”.

  • 144.
    Tawfeeq, Safeen
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Håkansson, Gustav
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Energieffektiviseringsmöjligheter i kulturhistoriska byggnader2019Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    All around the country there are historic buildings considered to have a cultural heritage value and are therefore historically important and should be preserved.  They are an important part of a city’s identity and it is important to preserve them so that they can keep being part of our societies. The thesis of this study is therefore to explore the possibilities for how these buildings can become more energy efficient, so that they can meet today’s standards and keep being functional.

    Cultural heritage buildings can be subject to legal preservation and for every building there are individual preservation requirements that are to be considered. Three fictional buildings with different preservation requirements have thus been created to take into consideration all the challenges and possibilities that can present themselves.  

    The result shows the multitude of opportunities, but that these can vary greatly between buildings and cases. It is always the individual building’s preservation requirements and its premise that are the determining factors for if the solutions are applicable or if the value is affected negatively. Thus, a thorough prestudy is always significant before every project. Window retrofit solutions are mostly made of adding additional glass and sealing, which in many cases can be applied to existing windows without further complications. Ventilation and heating systems, however, require more space and are in most cases a more difficult retrofit action. Though, in some cases existing canals and pipelines can be utilized for installation of the new system, without affecting the heritage value negatively.

    Energy efficient retrofits in cultural heritage buildings could bring value and should therefore be considered. By retrofitting the building’s existing systems with newer and modernized techniques the indoor climate can be greatly improved, and thus the building’s use can be broadened, and it can continue to be a functional part of the city. 

  • 145.
    Thellsén, Amanda
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
    Tibell, Katarina
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
    SOLCELLSPANELER PÅ FASADER: En utredning av lagkrav och infästningssystem2016Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [sv]

    I Sverige finns ett långsiktigt mål som innebär att all energi som används i landet ska komma från förnybara källor. För att uppfylla detta behöver solens energi tas tillvara. Det är vad företaget Solibro Research AB arbetar med genom sin forskning och tillverkning av tunnfilmssolceller.

    Att solcellspaneler lämpar sig för takinstallation är välkänt i Sverige, men få känner till att de även passar bra som fasadmaterial. Solibro har en önskan om att anpassa sina moduler till fasader, vilket hindrats av okunskapen om vilka lagar och regler som finns och hur modulerna monteras på väggen. Syftet med rapporten har därför varit att jämföra de system som finns för infästning av solcellsmoduler på fasader och att utreda vilka svenska lagkrav som måste tas hänsyn till vid dimensionering av anläggningen. Målet har varit att ge Solibro en rekommendation för lämpliga montagesystem och information kring gällande svenska regler för fasadmontage av solcellspaneler.

    Arbetet har byggt på intervjuer, studier av referensobjekt och en litteraturstudie över svenska standarder och byggregler. En utredning har även gjorts över vilka certifieringar som finns.

    Resultatet visar att kraven är på väg att bli tydligare och mer omfattande. I den nationella standard som fastställts i maj 2016 har de tidigare skilda kraven på solcellspaneler och byggnader kombinerats. Svenska certifieringar har ännu inte upprättats och därför rekommenderas den tyska TÜV-certifieringen. Vid jämförelse av infästningar har fönsterprofiler visat sig vara de enda vädertäta. Allmänt rekommenderas kassettsystem och för Solibro har specifik rekommendation getts beroende på modultyp.

  • 146.
    Torgén, Johan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Tillämpad mekanik, Byggteknik.
    Kategorisering av Arbogas byggnadsbestånd byggt före 1945: En tillämpad metod för energieffektivisering i kulturhistoriskt värdefull bebyggelse2017Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    To preserve the older building stock in Sweden in a sustainable manner, investigations of the construction and condition of these buildings are required. The investigations are needed to make correct decisions on maintenance of buildings and to evaluate energy-efficient measures for different types of buildings. In this work, the building stock in the city of Arboga, built before 1945 is investigated. Data about the building stock have been compiled using information from the building register of The National Heritage Board and the national database of energy certificates. Properties such as usage of the building, construction year, number of floors, area, volume and placement have been investigated and documented in an inventory list.

    The objective of the present study is to implement a method where the building stock can be divided into more manageable categories. The categorization is done by grouping the inventory in three steps: number of floors, location relative to other building and volume ratio. Based on the building categories, an archetype building is created for each category. With the help of these typical buildings, careful studies on energy-efficient measures can be performed. The results can then be extrapolated on the entire building stock.

    Delimitations have been made during the inventory. Outliers i.e buildings where the volume deviates much from the average in each category have been excluded.

    Finally, the method applied on 149 buildings resulted in four categories and four type buildings which represents the building stock of Arboga, built before 1945. 

  • 147.
    Tunefalk, Martin
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Legnér, Mattias
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Leijonhufvud, Gustaf
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Konstvetenskapliga institutionen, Kulturvård.
    Long-term effects of additional insulation of building façades in Sweden: Towards a holistic approach2019Inngår i: International Journal of Building Pathology and Adaptation, ISSN 2398-4708Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Abstract

    Purpose – The purpose of this paper is to evaluate long-term effects of previous policies for energy efficiency on energy performance and heritage values. A further ambition is to better understand the relationship between energy and preservation by exploring a quantitative method of combining energy performance data with official heritage designation.

    Design/methodology/approach – The study is based on a quantitative analysis of energy performance,completed additional insulations, and official heritage classification for individual buildings. Data have been collected and analysed for a sample consisting of 289 multi-family buildings heated with district heating and constructed 1940–1949 in an urban area in Stockholm, Sweden.

    Findings – The data exhibit a significant correlation between the studied features. The study further shows that additional insulation has been installed in roughly half of the buildings. The large majority of them were carried out in the national programme for home improvement called ROT.

    Research limitations/implications – The findings indicate that previous policies for energy efficiency had an important effect on energy performance and heritage values in the studied area. They continue to affect urban planning and building permit administration today. Research of the physics of individual buildings would be needed in order to determine the reason for differences in the sample.

    Originality/value – By presenting a novel method, the study provides a useful tool for policy makers to bridge the gap between issues of energy and preservation and adopt a more holistic approach towards a sustainable built environment.

  • 148.
    Vasic, Darko
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Standardisering och kalkylering av maskinhallar2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This thesis has been carried out on

    behalf of Lindborg & Sons in Örsundsbro

    and is a concluding part of the Bachelor

    of Science program in Construction

    Engineering at Uppsala University. The

    aim of the project is to make a plea for

    a database of good examples of the

    machine room types using Revit drawing

    program, and work out a corresponding

    worksheet .

    At the start of the process it became

    apparent that there were some

    difficulties in using Revit to creating

    machine room types of the variety which

    the company builds. For modelling of

    oblique, curved and irregular lines, I

    had to use my AutoCAD Architecture and

    then import them into Revit.

    The creation of calculus in Excel was

    time consuming. On the other hand, it is

    a one-time work to create the template.

    The advantage of Excel is that there is

    no need for a re-calculation at the cost

    of various types of machine hall. All

    that is needed is to replace the various

    parameters. A further advantage of Excel

    is that Microsoft Office is available in

    most computers, which means that no

    additional costs are required.

    When Excel is used, a basic template is

    created in which the parameters can

    easily be changed and amended. This

    generates a new spreadsheet. It is not

    necessary to do the drawing, which you

    must do if you only use Revit. In the

    work, other solutions for cost estimates

    are briefly discussed.

  • 149.
    Vidner, Ola
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Effektiv byggproduktion2011Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    This report aims to suggest recommendations that will increase the efficien¬cy in theconstruction process of a construction project. Through interviews, studies of budgetcalculations and examples given by the project management at the construction sightsan understanding of some complications have been gained. These complications havebeen tracked back in an attempt to find the source of the problem, and at the end ofthe report some suggestions have been presented with the pur-pose of preventingthese complications. Through the interviews it is suggested that many complications re-late to lack ofcommunication and motivation due to poor planning be-fore and during theconstruction process, a suggestion that is supported by the study of the budgetcalculations. The examples from the project management also points out someshortages in planning, but also coordi-nation related complications due to lack ofcommunication. To prevent these problems the recommendations suggested at the end of thisreport aims to improve the planning process through a properly fulfilledwalkthrough-planning of all of the construction activi¬ties during the time needed todo so. It is also suggested that the company uses experience from previous projects inorder to reduce costs, and that the qualifications of the employees is being appliedwhere it is needed. It also contains suggestions to re¬duce the com¬munica¬tion andcoordination problems, mainly through meetings and visible instructions. Somesuggestions about attitude, behavior and routines are also included in therecommendations.

  • 150.
    Vikeved, Johan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Industriell teknik.
    Lyftoperationer på Skanska2018Independent thesis Basic level (professional degree), 10 poäng / 15 hpOppgave
    Abstract [en]

    In 2016, 2089 construction-related accidents occurred in Sweden and five of these had fatal outcomes. Lift accidents are not the most common type of construction-related accidents, but they are most often serious – two of the accidents with fatal outcome in 2016 were lift related accidents. Therefor, a project group in Skanska was assigned to review all of the company's lift-related incidents and accidents, which were reported in the BIA between July 1, 2014 and June 29, 2015. The project group identified 203 incidents and 22 accidents during this period, and then proposed three key areas of development: the lifting operation procedures; training and education; implementation of revised operation procedures.

    In this degree project, Skanska's lifting operations have been studied, in order to identify possible areas of improvements. The Swedish Work Environment Authority's regulations and Skanska's own documentation on lifting operations were studied and Skanska's documentation meets the requirements in the Swedish Work Environment Authority's legal regulations. In addition, interviews had been conducted with employees involved in lifting operations at Skanska. These revealed that the theoretical documentations about lifting operation procedures are good, however practical training in lifting operations is scarce and the transfer of lifting operation related knowledge between workers could be improved.

    In order to reduce incidents and accidents during lifting operations, a solution could be to offer Skanska's education Safer Lift ISO, which consists of both theoretical and practical elements, to all staff working with lifting operations. It is also of great importance to identify the causes of all lift related incidents and accidents in order to prevent these in the future.

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