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  • 1.
    Abrahamsson, Caroline
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Waltersson, Johanna
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    FLEXIBLA BYGGNADER: Utformning av en förskola med en möjlig verksamhetsändring för framtida behov2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Society today has an increasing demand for environmentally and economically sustainable developments in order to create a sustainable society. Society’s growth in new construction is a big part of this, and by planning and building more sustainable buildings these requirements can be fulfilled. The development of flexible buildings, which can adapt to future needs of society, lead to a more efficient utilization and longevity of premises and generate more sustainable buildings.In Sweden, the municipalities are the country’s largest property developers and therefore have a significant responsibility to provide society with real estate and public buildings. In recent time we have seen a shift towards flexible public buildings and in particular preschools. With the current socio-economic climate and ageing population buildings like preschools need to be flexible to ensure they can cater for future demands of society.

    This degree project, within the Bachelor programme in Construction Engineering, has been carried out during 10 weeks on Tengbom Architects in Uppsala. The thesis deals with the subject of flexibility in buildings and includes a proposal for the design of a flexible building as a pre-school that in the future can be converted into a retirement home.

  • 2.
    Abrahamsson, Niklas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Individuell mätning och debitering av värme i flerbostadshus: Svenska förutsättningar i jämförelse med erfarenheter från Tyskland och Danmark2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today it is unusual to use consumption based billing of heat in Swedish apartment buildings. This is more common in the rest of Europe and this study aims to learn about experiences and possible problems from Germany and Denmark, which are countries who have this system implemented in their law. The current study is made on behalf of the Swedish Union of Tenants, the Swedish Association of Public Housing Companies (SABO) and the Swedish Property Federation as part of a project where these organizations want to establish a recommendation for their members if they would like to start using the method.

    Differences within countries that are examined include climate, the property´s energy performance, local habits, rent-setting system, business model for energy sales and the law. The techniques to measure consumption are also described. The main objective of this report is to increase understanding and knowledge in this subject. The report is meant to serve as a basis for a recommendation on introducing this system in Sweden.

    As can be seen from the comparison, Sweden in many cases has similar conditions as Germany and Denmark. There are also substantial differences. For example it may be difficult to transfer heating costs separately from the basic rent because of the Swedish rent-setting system. Due to the colder climate in Sweden, the energy savings would be greater in absolute terms. It can also be seen that German and Danish laws regulates the market in a similar way. If implemented in Sweden in its current form, the European Energy Directive could force legislation for the mandatory introduction of the system.

  • 3.
    Ahlstedt, Erik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Bygglogistik i en regionstad: Köra hit eller köra bort?2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The work is being carried out with the construction company Arcona.The aims are to evaluate and make recommendations about theirbuilding logistics solution CSL. For now, CSL is only used forprojects in Stockholm. If a need for CSL occurs in Uppsala, it willalso be introduced there.The purpose of the study is to investigate how CSL works inStockholm, what good experiences and challenges identified by theusers in Stockholm. Another purpose is to identify which partfunctions of the logistics solution that are requested by futureusers in Uppsala.To find out how the solution works today on projects in Stockholm,three qualitative interviews have been conducted. To find out aboutthe expectations of subcontractors (UE) on a logistics solution inUppsala, a qualitative interview has been conducted with asubcontractor. All interviews were then encoded to find themes andsubcategories.The conclusion is that both the subcontractor and Arcona see bothpractical and financial gains in introducing CSL in Uppsala. The mainadvantage of CSL is that it is scalable and you can choose to insertonly the sub-functions that are needed on the current project. Aservice that both sees benefits and which can be recommended is alogistics coordinator who reviews the entire logistics at theworkplace and thereby more easily identifies and solves problems.

  • 4.
    Alcazar, William
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Hammargren, Erik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Anläggning av traditionellt VA-schakt: En fallstudie i logistik och byggstyrning2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A growing issue in the construction industry is how production can become more

    efficient by using logistical solutions. Companies can minimize the cost of a project by

    reducing the time to perform the work.

    The purpose of this report was to examine the logistics related to pipe trenches for

    SIAAB. The report's focus has been on solving problems and planning that would

    facilitate the work of the project Vaksala-Lunda Etapp 3.

    The case study consists of interviews with SIAAB's employees and an observation

    where the progress of a traditional pipe trench has been documented using checklists.

    Questions to the report’s case study come from the theoretical part, which is based

    on literature on construction management and logistics in general. The observation

    lasted five weeks and the biggest time-consuming events that affected the pipe trench

    during this time, has received most attention. Last part of the report is a compilation

    of the authors' own thoughts and opinions.

    The production was difficult in this case because the earlier stages of the project were

    weak. The extent of SIAAB's planning could have been higher, but this was

    complicated when employees were tied to previous projects.

  • 5.
    Amanda, Holmkvist
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Inverkan av torktemperatur vid vattenmättning av bruk och betong: Bestämmning av vattenmättnadsgrad och hydraulisk konduktivitet2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today, there is uncertainty about how much the results differ when drying concrete

    at 20, 50 and 105 °C prior to saturation of concrete in order to determine the

    degree of saturation and hydraulic conductivity. Micro-cracks occur when concrete is

    dried at higher temperatures and causes increased hydraulic conductivity. Further, the

    concrete is believed not to be completely saturated if not all the physically bound

    water, so called free water, has been dried out prior to saturation.

    This thesis compares the effect of three different drying temperatures on the

    possibility to saturate concrete with water. The work was conducted at Vattenfall’s

    concrete laboratory in Älvkarleby. The three drying temperatures were +20 °C

    (room temperature), 50 °C and +105 °C. The objective was to determine if

    differences on the degree of saturation and hydraulic conductivity were non-existent

    or negligible. Vacuum saturation after drying at 105 °C is considered to be complete.

    The results after drying at 20 °C and 50 °C were compared to those after drying at

    105 °C. The results of the tests indicate that the concrete should be dried at +105°C

    prior to saturation with water. Then the risk of frost damage to concrete in hydro

    power structures can be assessed.

    How determination of the hydraulic conductivity is affected by the drying

    temperature gave more vague and dubious results. All specimens showed a maximum

    hydraulic conductivity after drying at 50 °C, not after 105 °C as expected. It was

    believed that the hydraulic conductivity theoretically would increase because of

    (more) micro-cracks when being dried at 105 °C. Results from the concrete with vct

    1.0 gave results that indicated that the specimens had been damaged by method 1. To

    sum up, the results of the tests indicate that further studies on the effects of drying

    temperatures should be made.

  • 6.
    Amrén, Henrik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Grimling, David
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Vilka faktorer påverkar användandet av drönarteknik vid utvändig termografering av byggnader?: Tillvägagångssätt vid utvändig termografering av byggnader med tekniska hjälpmedel. En jämförelse av tekniken på marknaden idag och en framtidsanalys, med fokus på drönarinspektion inom termografi2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction industry is currently undergoing a modernizationwhere drone technology is a part of this. Construction and realestate companies are curious to test new technologies to improvetheir way of working, where drones equipped with a thermal camera isan area that is being fully explored.

    Through an in-depth analysis, this report highlights through relevantliterature studies and interview studies, benefits and barriers inthe implementation of drone technology for thermal inspections andthe future development potential of the technology through relevantliterature studies and interview studies.

    In order to describe the limitations that may arise regarding abuilding thermal inspection with drones, a case has been put forwardto the interviewees in order to more clearly compare the drone withthe traditionally hand-held thermal camera. This is to decide whetherdrones are a good tool for building inspectors.

    The results section shows that drones with a thermal camera equipped,in some cases are a good complement to the traditional handheldthermal camera and that drones are to be used more by buildinginspectors in the future.

  • 7.
    Andersson, Frida
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Stabilitet och tillåten rörelse hos flervåningsbyggnader: Analys av höga byggnaders begränsningar till dynamiska krafter och svängningar2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    One of the challenging design areas of high buildings is the determination of its stability and response to dynamic forces. These factors affect the horizontal deformations and fluctuations that the building will result in. This report examines the demands placed on the stability and deformations of high buildings through a literature study as well as examines these requirements with a reference building built into FEM-Design. The literature study shows that quite a few standards have to be taken into account and used in the design of tall buildings. Regarding limit values, only SS-ISO 10137 specifies maximum values for a building's peak acceleration relative to its own frequency. Limit values for transient deformations are not available. Furthermore, the literature study shows that plenty of studies of human perception and tolerance to movements in buildings have been performed. The movements have been shown to cause physical andmental discomfort if exaggerated, which SS-ISO 10137 bases its limits after. The 75-meter reference building, modeled in FEM-Design, was built to calculate the building's own frequency, transient deflection, and self-weight. The wind loads have been calculated separately and entered into the program. Calculations for the building's peakacceleration have then been calculated and compared to the limitvalues in SS-ISO 10137. The structure of the reference building, consisting of 25-storeys in concrete, met the standard requirements for housing and should be able to be built without the risk of discomfort among the residents. Other inputs were 250 and 200 mm floor and wallthickness in C25 / 30 and VKR pillar in each corner, 200x200x10 mmin quality S355. The plan levels are square 21.8m wide andidentical to all 25 levels.The model-building met the requirements for living space accordingto SS-ISO 10137 with respect to peak acceleration and frequency. However, the calculated horizontal deformations did not have anylimit values to be compared to and were therefore not compared to any restrictions.

  • 8.
    Andersson, Pelle
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Effektivisering av materialleveranser: En undersökning av möjliga förbättringar för leveranser av våtrumsinredning på JM2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Logistics in the construction industry is a difficult and troubled area with great room for improvement. Planning, preparation, management and control over material flow have become increasingly important for a company in order to keep up with the competition and reduce their costs.

    The purpose of this thesis is to investigate and identify possible improvements in the supply management regarding the interior for the sanitary rooms at JM- constructions. To identify possible issues with the supply management three of JMs projects in Uppsala have been analyzed.

    The result presented in this report shows that there is problems with the current supply management, problems which can be solved by introducing a Construction Consolidation Centre.

    Furthermore recommendations are given to introduce a pilot project with a Construction Consolidation Centre including: washstand, mirror cabinet, shower screen and towel rack. 

  • 9.
    Andreasson, Josefine
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Falck, Sandra
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    När befintligt ska bli nytt: Optimering av ombyggnation i befintlig kontorslokal2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Vid utformning av kontor är krav på arbetsmiljö, tillgänglighet, trivselfaktor och att kunna påvisa sitt varumärke i kontoret av vikt. För att kontoret ska bidra till ett positivt arbetsklimat och ett effektivt arbetssätt bör även utformningen anpassas till den specifika verksamhet som bedrivs. Ett kontor med attraktiv utformning och bra arbetsmiljö ökar organisationens attraktionskraft mot befintliga och framtida medarbetare.

    Rapporten behandlar krav och aspekter att beakta vid ombyggnation av kontor och planering av ny kontorstyp i existerande lokaler. Med ett befintligt kontor finns givna förhållanden som ska tas hänsyn till och därför sammanfattas fakta om tekniska- och social aspekter som är av vikt vid valet av kontorstyp. Tekniska aspekter är ljud, ljus, luft, temperatur, bärande byggnadsdelar, vatten och avlopp, brand och el. Sociala aspekter innefattar ergonomi, kulörval, medarbetarhälsa, digitalisering, estetik och inredning. Olika kontorstyper beskrivs och utformningskrav från lagar och branschföreskrifter presenteras.

    Utförd studie baseras på en fallstudie av Skanskas kontor i Uppsala där en behovsanalys utförs och ett förslag på aktivitetsbaserad kontorslösning presenteras. 

  • 10.
    Antell, Malin
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    En jämförelse mellan uppmätt och framräknad A-temp2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The main purpose of this paper was to compare the measured A-temp with the calculated A-temp. A–temp is an area term used in Sweden when calculating the buildings energy usage while performing energy assessments.To obtain A-temp you can measure it, this way you will get the exact value. Or you can calculate it, from other already existing area measurements. It is easier and more time efficient to calculate A-temp but it may deviate from the real A-temp.What I found in my study was that for most of the buildings I had chosen, there was not a very big deviation, between measured and calculated A-temp. The largest difference was when calculating A-temp from BOA+LOA when in two of the cases there were differences of 15 %.When doing this study, I have measured A-temp for the buildings, on blueprints. I have calculated A-temp from already measured area and compared them to each other.

  • 11.
    Arnsten, Emma
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Öhman, Ellen
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Användbarheten av Tekla i Betongkonstruktioner: En jämförelsestudie mellan två modelleringsprogram2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has examined the Tekla Structures modeling software and answered the question of whether it could act as a suitable modeling program for the design department at Bjerking AB in Uppsala. The method used in this work is a case study of a previous project with existing basis to work form. The demarcation of the study was to examine only the usability of the foundations of in situ concrete. 

    The work examined three main areas within the design process. The first was to model the concrete elements then to model the reinforcing and ultimately production of the drawings. Because Autodesk Revit was the existing modeling program in the Department conducted the evaluation as a comparison between the two programs. The condition was that all three main parts would be made in the same program. 

    The results showed that Tekla Structures has great potential in the field of concrete modeling, and that it is a suitable modeling program to use for projects thats include foundations in situ concrete. The study has also shown the programs benefits to model reinforcement in 3D in these types of projects. 

  • 12.
    Axelsson, Cecilia
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Leveransproblem: Ett problem vid strukturerad produktion2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When building large buildings, such as compartment buildings, there is a number of deliveries arriving on the construction site daily. In order to receive these deliveries without disturbing the rest of the work going on JM often books a fixed unloading time. When doing that they can be prepared when the delivery arrives. Making sure there is a suitable unloading area, someone to meet the delivery and when needed proper machines, such as a tractor or a crane, to help unload bigger deliveries. The person receiving the delivery is supposed to make an acceptance control where they check the delivered goods making sure nothing has been damaged in transport and that they have received what they were supposed to receive. Also noting whether the delivery arrived on time or not.

     

    In 2010 JM introduced structured production as their take on lean, and thus working more effectively. Structured production at JM means that everyone in the company performs the same task in the same way according to a predetermined assembly instruction. It also includes a certain way to make time plans for the whole project as well as for the next 5 weeks. As for deliveries JM tries to order these as close to just in time as possible. That reduces keeping material in stock at the construction site and also handling this material more than necessary. Handling material in stock is a big source of accidents and takes time away from other work. However, it is very vulnerable to have essential supplies arrive to the construction site just when they are needed as a delay can ruin the whole timeline of the production.

     

    This report aims, through qualitative studies, to find out how widespread the problem of late deliveries is at JM'S three construction sites in Uppsala and what JM is able to do to avoid it.

     

    The study showed that if deliveries are delayed, it refers almost exclusively to 1-5h on the desired delivery date. Deliveries being delayed so that they do not arrive on the right day were very unusual. One of the questions in the interviews was also whether JM themselves could have a negative effect on deliveries arriving on time by making changes in their orders, but this seems to have no significance when changes are made only after approval by the supplier and that the vast majority of deliveries after all still arrives on the right day. It rather seems that some providers take the order of a fixed unloading time less seriously.

    Something that does not make things better is that the procedure for handling delayed deliveries varies a lot just between the three construction sites in Uppsala and also between supervisors on the same construction site. It is not even always the case that the supplier is notified that the delivery was late, and then they do not know that they need to improve. Most suppliers buy in the transport of a shipping company and order a fixed unloading time from them. The suppliers interviewed all said that they wanted to know if the delivery was late so that they can contact the shipping company.

  • 13.
    Backåker, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Harder, Jonas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Utvecklingsanalys av installationssystems montering vid industriellt träbyggande: Värme, vatten, ventilation, el och avlopp2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The industrialized timber housing process is capable nowadays to build multi-storeyhouses since fairly new changes in the Swedish regulations where made after theadmission of the European Union in 1994.The industrialized process moves parts of the construction process into a highlyeffective factory where 3D-volumes of the building are prefabricated beforetransportation to the building site for assemble.The assembly process is relatively effective compared to the completion of thebuilding service system and this is therefore the main focus in this thesis. This thesisattends problems with completion of the building service system, and thereforedemarcates from other aspects, such as technical and economic aspects, of thebuilding service system.The degree of completion of the flats differs from completion of the connectivepassages, for example hallways, in a way that suggests a need for further investigation.This thesis includes analysis of the possibilities to increase the prefabricatedconnective passages, to the extent of containing building service systems.An increase of the prefabrication of the building service system has a greatdevelopment potential, even though some restraining factors need to be solvedbefore implementation.This thesis was made in collaboration with two of Sweden’s leading companies on themarket of multi-storey industrialized timber housing, Moelven ByggModul AB andLindbäcks Bygg AB.

  • 14.
    Batti, Aryan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Hedlund, Jakob
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Byggarbetsmiljösamordning: En analys av hur byggarbetsmiljösamordning sker idag och hur den kan förbättras2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to analyse the current state in the construction sectorwithin the co-ordination of building work environment. The outcome of the analysiswill be implemented in a process model which aims to secure a safe workenvironment. As a result of a change in the Swedish Work Environment Act in 2009the government presented two new titles in the construction sector. The two newtitles were named: building work environment coordinator for design and planning (BAS-P) and building work environment coordinator for execution(BAS-U).Together they are responsible for the building work environmentco-ordination throughout the whole building process.

    The information gathering for the study was mainly based on interviews carried outwith professionals with experience from either of the two titles. Although the workprocess is regulated by the law but also internally in the companies, there is still awide diversity in how the work is executed. The interviews also led to the conclusionthat there is a lack of communication between the two parts and further thatsome designers are lacking in knowledge of how the designed details are carriedout in practice.

    After the conclusions above were made, a process model which will encourage active communication was developed. The process model is a folder hierarchy which will simplify the co-ordination of building work environment for each operator. It is also a way for the companies of ensuring that each operator uses the samedocuments in order to set a standard and prevent miscommunication.

  • 15.
    Berefelt, Erik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Olsson, Linn
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Utvärdering av olika metoder för fuktstyrning i kyrkor2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis examines three medieval churches within Lagunda parish in Örsundsbro.The parish has previously had problems with mould growth and has therefore, inselected churches installed various types of moisture control, together with devicesfor measuring temperature, relative humidity and mixing ratio, at three locations inthe churches. The moisture control should in an energy efficient way reduce the riskof mould growth and thus reduce the future maintenance costs.

    The purpose of this thesis is to analyse the results and to see how the moisturecontrol measures has worked in the churches. The data has been collected in theprogram Omnisens and compiled by Magnus Wessberg at Uppsala University, whichresulted in diagrams that include relative humidity and mould risk, which theanalysis has been based on. Two different moisture control measures have beenused in the churches that this thesis examines. The measures are condensationdehumidifier and moisture controlled ventilation.

    The result is varying between the churches but shows that there has been a needfor moisture control that reduces the relative humidity indoors. The energy usagehas differed between the measures, but should not be crucial when deciding onfuture measures.The result also shows that the indoor climate is largely influencedby rainfall and that the church's organs in the study should be taken into account infuture measure, since the result when there is a risk of mould differs from otherparts of the churches.

  • 16.
    Berggren, Jonathan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Miljöbyggnad, GULD värt?: En undersökning av fastighetsägares erfarenheter och tankar kring ett nytt certifieringssystem2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    During the past few years an increased attention has been paid to environmental issues in the construction and property sector in Sweden. In order to simplify the work with these issues a Swedish environmental certification system for buildings called Miljöbyggnad has been developed. This thesis aims to investigate the opinion of a selected number of selected property owners of Miljöbyggnad. From that basis recommendations and actions for the future work with the system will be presented.

    The investigation has been conducted through personal interviews with five property owners. The main issues that the interviews have been based on are their purpose, experiences, perceived complications and future prospects in terms of certification using Miljöbyggnad.

    The system intends to be cost-effective, simple and to offer a relevant environmental assessment of buildings and the result from the report indicates that this is largely fulfilled. All respondents believe that Miljöbyggnad offers a relevant environmental assessment. All of them also believe that the system is simple except for some complications and 80 % believe that the system is cost-effective. In terms of the future, all interviewed property owners will most likely certify buildings under Miljöbyggnad, some to a greater extent than others.

    The conclusion from this investigation is that the system needs to be dynamic. Adaption to the social, environmental, technical, economical and legal conditions that prevail is vital. However, it is recommended that Miljöbyggnad retains its simplicity and avoid growing to become too comprehensive.

  • 17.
    Berggren, Olof
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Kjellberg, Linus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Icke värdeskapande aktiviteter inom byggproduktion2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to enlighten Boetten Bygg ABconcerning Lean Construction and its methods, which can benefittheir work towards reduction of non-valuable activities during theproduction phase. The examination took place at two projects thatBoetten is working with in Sigtuna and Sollentuna. Both projectswere in the same phase. The method used were to visit the projectsand get an overview of how they’re working today. This was done byattending weekly meetings between the leading parties from Boettenas well as the leading persons from each of the contractors, wealso handed out a survey where the participants evaluate theproblems that can occur.

    The literature study lifts the basic principles of LeanConstruction, where we have chosen to focus on three differentLean methods that may help Boetten to decrease the wastingactivities in their future projects. We adressed the procurementof a project to lift the pros and cons that this contributes. Byusing this theory, we have discussed the subject round thequestion formulation:

    •Where in the production process is the biggest potential fordecreasing wasting activities?

    •Which Lean methods would generate the most valuable improvementadjusted to their organization?

    •How can Boetten go through with a change in the productionprocess?

    The gathered result shows the three dominating problem areas werewaiting, the arrangement on the construction site and thecommunication between involved parties. Based on the result wediscussed Boettens way of working to narrate, with grounds fromthe literature study, how an improvement may be carried out. Thestudy shows that an implementation of Lean Construction has thepossibility to minimize the wastage. The methods which wereconsidered to make the biggest change concerning wastingactivities were 5S, Just-In-Time and Last Planner. In order forthis to be possible, a strategy decision is required at amanagement level

  • 18.
    Berglund, Gabriella
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Utveckling av fastighet i Uppsala innerstad: Förslagshandlingar till flerbostadshus för studenter2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 19.
    Bergman, Adam
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Tidsslöseri i byggbranschen: Synliggörande av problem med tidsslöeri i byggproduktion2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to give a clear indication of how widely spread the

    problem with time waste is in the construction industry. One of the big issues of

    today is the large increase in construction cost of residential buildings. The cost of

    producing new apartment buildings has increased with 140 percent in less than 20

    years. Furthermore the study show that only 17.5 percent of a construction workers

    day is value increasing work. The same study also show that 37.5 percent of a work

    day is waste that can be completely eliminated and has no value to the customer. A

    good way to approach this time waste problem could be to implement LEAN in to

    the construction industry. This report is done together with Skanska Sweden AB in

    Uppsala. The main research methods used in this report is a literature study,

    interviews, an inquiry and visits to the construction sites. The result presented in this

    report shows that there is a problem with time waste in Skanska projects in a couple

    of different areas. The conclusions to this report show that the knowledge about

    LEAN today is poor, negative attitude towards changes, these arguments are

    hindering work to improve Production efficiency in the construction companies.

    LEAN education for employees and dividing responsibility to all the workers on site

    could be solutions that could change the industry to a more cost efficient

    construction process.

  • 20.
    Bertze, Anna
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Från BIM-modell till logistik: Möjligheten att digitalisera materialflödet2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When all the information for smart building materials orders can be extract from aBIM model it is possible for correct material to be delivered at the right time at theright place. If a flow of material is well planned it leads to a more efficient work on theconstruction site and reduced waste.Overall, the relationship between material supplier and contractor has receivedsurprisingly little attention in research. Especially considering the amount ofcontractor-supplier-relationship there is in each building project. In this bachelorthesis the possibility of using information from a BIM model to a digital material orderis investigated. Furthermore, the need and problems in the digitizing process of thematerial flow and its operators is studied. The results show that a digitalcommunication is possible but requiring a major change in the process of materialflow.

  • 21.
    Björendahl, Lisa
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Janz Bergman, Nicole
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Mervärden av BIM: En analys av implementering av BIM i byggproduktionen2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The past 60 years, many industries have developed exponentially regarding digitalisation and they have adapted to the technology quickly. However, the construction industry has a linear development and has almost remained unchanged over the past years. It is still common to use printed plans at construction sites and raise buildings based on 2D drawings even if there are detailed 3D models accessible. There are great opportunities for development of the construction industry, but not many companies have succeeded in maximizing the outcomes due to limitations of external factors. The use of Building Information Modeling (BIM) needs to be standardised in the construction industry, in all phases.

    The thesis aims to investigate the obtained benefits of implementing BIM at construction sites. The thesis presents the topics of the construction process and BIM, and it accounts the results of the study based on a qualitative analysis. The responses from the interviews have been interpreted and summarised into a result, which are also confirmed by a background research. The study resulted in many benefits from the implementation of BIM at construction sites. To summarise, the benefits are: better information management, clearer communication, more efficient planning, reduced costs and increased quality. The study also shows that each benefit, in turn, results in additional benefits.

    The conclusion is that, in order to gain from the benefits, companies must invest in competence and resources. It is also necessary to demand more from authorities in order to make digitalisation a standard in the construction industry. There are great opportunities for an automatised construction process in the future. Furthermore, it can be speculated whether this will also lead to robotisation of the industry, 3D printing of buildings and using AI to design buildings. The first step for the construction industry is to catch up with the other industries is to standardise the use of BIM throughout the construction process.

  • 22.
    Blom, Henrik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Thored, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    STABILA HÖGHUS I TRÄ: En analys av infästningars inverkan på accelerationer och utböjningar i ett 15-våningshus av trä2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In today’s society cities grow increasingly larger, not only on the ground but vertically as well. Utilizing height means taller buildings, which often are large steel- and concrete constructions. Why not construct tall buildings out of timber instead, a material by many believed to be far better from an environmental perspective than steel and concrete? The answer lies in the lack of knowledge regarding tall timber constructions and the stresses they need to withstand.

    The report was conducted at the construction consulting company Bjerking AB, Uppsala. The focus in this report was to examine accelerations and deformations as an effect of wind loads. The issue at hand was whether the connections between building elements affect the dynamic responses that occur.

    The chosen model was a 15 storey timber building whose walls and floors consisted mainly of cross laminated timber elements as the load bearing structure. As a large amount of the analyses were complex, the calculations were made in the computer program FEM-Design, which is a finite element program.

    After performing numerous calculations with different settings, a result emerged. Clear trends could be seen in the connections’ influence on accelerations and deformations. A stiffer connection makes the building more resistant to wind loads. This result has to be considered when constructing tall timber buildings to avoid problems with accelerations and deformations. However, merely adjusting the connections to meet requirements is not sufficient, other measures are also needed.

  • 23.
    Blomqvist, Erika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Ledje, Ante
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Hållbar avfallshantering vid nybyggnation: En jämförelse mellan olika avfallssorteringsmetoder2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Idag eftersträvas i allmänhet en hög återvinningsgrad och framför allt reducerade mängder avfall. Detta är något som bör prioriteras inom bygg- och anläggningsbranschen på grund av de stora mängder avfall som byggsektorn genererar. För att minska mängden byggavfall och framför allt den andel som hamnar på deponi behöver insikten i det avfall som faktiskt genereras öka.

    I det här examensarbetet studeras avfallshanteringen på två nybyggnadsprojekt och hanteringens inverkan på miljö och projektens ekonomi. De båda projekten har vidtagit olika åtgärder för att påverka avfallshanteringen och sorteringen av det blandade avfallet. Rapportens syfte är att belysa hur olika metoder för sortering kan påverka byggavfallet och andelen som går till deponi samt hur detta kan medföra ökad insikt. Målet är att försöka urskilja det bästa tillvägagångssättet att hantera byggavfall och utifrån det skapa en referensram som kan användas vid framtida planering av byggprojekt.

    Undersökningen består i huvudsak av komparativa fallstudier där avfallsstatistik på två projekt jämförs före och efter utförd åtgärd. Vid sidan av detta undersöks även följderna av en hypotetisk fullständig sortering. Litteraturstudier, platsbesök och telefonintervjuer utförs med syfte att få bakgrundsfakta och aktuell information som kan relateras till avfallsstatistiken.

    Resultatet visar att en ökad sorteringsgrad och en minskning av det blandade avfallet medför en ökad deponiandel och därmed ökade fraktionskostnader för deponi. Sett till total fraktionskostnad går däremot kostnaden ner vid en ökad sorteringsgrad. När extern part används för sortering ökar totalkostnaden för avfallshanteringen samtidigt som det sker en ansvarsförskjutning. Ökade kostnader måste vidare sättas i relation till ökad insikt och andra miljövinster. Att därför utifrån undersökningen hävda att det finns en optimal lösning för sortering är inte möjligt då det finns för- och nackdelar med samtliga metoder som undersökts. Vad som däremot kan urskiljas är att en sortering så nära källan som möjligt är att föredra då det medför störst kunskap om avfallets fortsatta funktion i kretsloppet. 

  • 24.
    Boréus, Ida
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Andersson, Sanna
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Den offentliga upphandlingens påverkan på entreprenörer: En studie av små och medelstora byggentreprenörer2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Public procurement in Sweden is regulated by the Act on Public Procure­ment (lagen om offentlig upphandling, LOU, in Swedish). The Public procurement in Sweden stands every year approximately for 500 bil­lion Swedish crowns of the taxpayers’ money. It is therefore im­portant that the money is spent in the best possible way. The focus in this study is set on the relationship between the small- and medium sized building entrepreneurs and the government. The study is built on international scientific arti­cles together with Swedish industry articles and the results from our own interview study. A comparison has been made between the three and it has resulted in listing obstacles for SME (small- and medium sizes enter­prises) and how to overcome these obstacles. 

  • 25.
    Brandt, Stina
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    NOLLDEPONI: - Utopi eller realistiskt mål?2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction industry is one of the main operators at the Swedish industrial

    market, which means that the industry also contributes with a large part of Sweden's

    environmental impact. The construction industry accounts for a third of the country's

    total waste. And today a normal project sends about 10 % of waste to landfill, but

    how should a project proceed in order to achieve zero landfill?

    The purpose of this thesis is to highlight the opportunities that exist in waste

    management in the construction of new buildings and how to prevent landfill. The

    goal is to summarize the results in a checklist to serve future projects.

    The study consists of a literature review in order to determine the current state of

    knowledge in landfill. Interviews with leading persons at two of Skanska's successful

    reference projects were held in order to capture their opinions and thoughts on zero

    landfill, and the factors that made their projects succesful. Interviews were also held

    with waste contractors from two of Sweden's major waste companies, in order to get

    a different angle on the landfill issue.

    The result shows that the issue of zero landfill is very complex and there are many

    factors involved. There is much to improve, but those interviewed believe it is

    possible to achieve zero landfill, through:

    • Commitment in leadership

    • Careful selection of materials

    • Engage waste contractor early

    The question remains whether zero landfill is what benefits the environment most or

    not.

  • 26.
    Brobert, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Leo, Waern
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Ett nytt LEED: Ett verktyg för effektivare hantering av poängen Sourcing of Raw Materials i LEED version 42017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Certification of buildings is now a big part of the construction industry. The role and

    importance of certifications is now undeniable. It has a positive impact on the

    environment, and in the meantime companies can label themselves as eco-friendly.

    Skanska is one of the biggest construction companies in Sweden. Lately LEED has

    become the most common certification system they use on larger commercial

    buildings.

    A new version has just been released, but how well has the system adapted to a

    Swedish market and environment, or vice versa? This can be difficult given that the

    certification system has been developed for an American market. In combination

    with the eventual problems given the system’s origin, working with LEED on the

    construction site is also a lot of work. Our Research indicates that approximately

    20% of a project engineer’s time is taken up by work with the system. This thesis

    examines the possibilities of reducing the amount of time LEED takes up.

    U.S Green Building Council has released a fourth version of LEED. In order to

    streamline the work with certification, an updated tool has been made that explains

    the credit Sourcing of Raw Materials and focuses on the essential parts for people

    who work in construction. In order to do this the previous tool made by Skanska has

    been studied, along with interviews with employees of the company. USGBC’s LEED

    Reference Guide is the core of the information regarding the new version.

    The conclusion is that given the right tools, the work with LEED can be more

    efficient.

  • 27.
    Burman, Andreas
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Arnberg, Robin
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Överlämnandet inom byggarbetsmiljösamordning: Riktlinjer och konsekvenser2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The concept of building work environment co- ordinator is a relatively new concept that has its origin in the amendment to the Working Environment Act which came into force on 1 January 2009. The terms; building work environment co-ordinator appointed for planning and design and building work environment co-ordinator for the execution of building or civil engineering work ushered in the industry. Once these disciplines complement one another, you can achieve a smooth handover to ensure a good and healthy working environment.

    In this thesis, we study a company in Uppsala and their operations and handover by interviewing the relevant staff in question. The result shows that there are currently no present guidelines for how and when the handover should take place, it is up to each individual to provide themselves with the relevant information.

    If the handover of the work environment would occur to the extent it should it would lead to minimized proportions of unforeseen risks and events that may occur during the production phase, which ultimately leads to a better and healthier working environment.

  • 28.
    Bälter, Simon
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Kvick, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Försäkringsbolags kostnader för reparation av fuktskadade badrum2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this report is to compile and examine the cost of renovation of moisture-damaged bathrooms, to derive a target price. The target price can then be used by insurance companies to estimate the ultimate cost of future bathroom renovations.

           The method is based on the compilation and comparison of the cost of repairs of previous water damage in bathrooms. The calculations compiled based on repair estimates for different insurance losses from one of the leading insurance companies in Sweden.

           The result shows the average price per square meter of floor area for different sizes of bathrooms. The average price is the basis for the estimate of future renovation costs of bathrooms. The results further show that the bathroom finishes, area and the distance between the entrepreneur and the location of the renovation have great impact on the final repairing cost. The biggest impact on the final price is the bathroom finishes and area.

     

  • 29.
    Börjesson, Patrik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Pantesjö, Marie
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Masshantering av schaktmassor: en jämförelse mellan traditionell masshantering och GPS-styrd masshantering i realtid2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this report is to analyze the advantages of using programme software to monitor masshauling instead of using the conventional method. A comparsion between different programs will also be conducted in an attempt to determine the most affordable. This report is written for NCC Construction AB to help them choose a software most fitting for future projects.The report is based upon literature such as information taken from the developers website, existing reports with similar context, interviews with sellers of the software and interviews with people working in the building sector.The result of this report shows that there are several advantages with investing in a software that helps the management of a project and that it is something that should be taken under consideration instead of the existing method. Topcon is a clear favorite following the inquiries comparisons as done, when they deliver a complete system and not only a supplement to the current approach. Scanlaser are just in the beginning of its development, and is so far only out with an early version of the software, while Topcon has been brought further in development and therefore has more features in the program. To utilize Topcon we fully recommend that the device HT-30 is used.

  • 30.
    Carlstedt, Rikard
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Utvärdering av datorprogram för användning vid dagvattenutredningar2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The main object of this diploma work thesis is about how computer programs can be

    a tool to use for work on stormwater investigations. The advantage of using a

    computer program compared with calculations made by hand is evaluated and

    discussed. The computer programs that have been used for studies and a sequence of

    testing of the possibilities are Autodesks Storm and Sanitary Analysis and DHIs Mike

    Urban.

    Focus on sustainable development now permeates the building industry. As a result

    stormwater investigations have been conducted in an increasing extent the recent

    years. Stormwater is water produced due to precipitation, such as rain and snowmelt.

    Stormwater investigations normally contain descriptions of existing land use, planned

    land use and suggestions of measures and technical solutions for the future disposal of

    stormwater.

    The initial part of the thesis consisted of literature studies on stormwater and

    stormwater investigations to understand the science. Further literature studies

    where related to hydraulic and hydrologic modeling. An analysis of the interest and

    way of applying these methods among municipalities and sewer companies where

    performed. Literature studies and situation analysis formed the basis for the design of

    the evaluation methodology where a number of key points were chosen and

    followed-up for both programs.

    The results of the thesis shows that there is a big advantage in using computer

    simulations for accurate mapping of the pipe networks provided that you also have

    the means to calibrate the hydrologic and hydraulic models. For less accurate

    analyzes, computer programs may be seen as a tool for data management.

  • 31.
    Cedergren, Lucas
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Paakkonen, Richard
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    En jämförelse mellan TLS och UAV-fotogrammetri: Inmätning av hårdgjorda ytor2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    At present day there are several different methods for measuring of paved surfaces.

    The most common methods today are measuring with a total station, the Global

    Navigation Satellite System (GNSS) and terrestrial laser scanning (TLS). Recently the

    development of unmanned aerial vehicles, known as drones, has increased

    exponentially and today there are several ways of using drones for measuring surfaces

    by photographing and laser scanning.

    This thesis contains a comparison between the methods terrestrial laser scanning

    (TLS), and unmanned aerial vehicle photogrammetry (UAV). The measurements have

    been applied on two different test surfaces, one of asphalt and one of gravel. The

    purpose of the comparison is to investigate whether the airborne photogrammetry is

    equivalent accurate in its height levels as the terrestrial laser scanning. For the

    comparison to be more extensive, these two methods have not only been compared

    in precision but also in the areas of ease of use and economy.

    The precision was analyzed by comparing the height levels in randomly placed control

    points on the test surfaces. This has been made possible by the creation of terrain

    models of test surfaces in the software Geo where a surface scan of the models have

    been implemented. With the help of surface control the height deviations in the

    control points have been calculated and from these deviations the precision of the

    airborne photogrammetry has been evaluated. The ease of use has been analyzed

    based on observations made and information gathered from experienced consultants

    for each technology. For the economic aspect the costs for each measurement

    method has been presented to get an overall picture of each measurement method

    costs.

    The work has been carried out on behalf of the consulting firm Bjerking AB. The goal

    is to be able to provide Bjerking with a recommendation for which technology is best

    suited for measuring of paved surfaces.

    The results of the survey show that the UAV varies by a mean of 11 mm on the

    surface of gravel and 2 mm on the surface of the asphalt. The final recommendation

    given is that the UAV is preferred for measurement of asphalt roads, because since

    the precision is equivalent to TLS, the method is safe

  • 32.
    Christine, Zeller
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Kommunikations- besluts- och informationsflöden i byggprocessen2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Construction projects are organized in different shapes and disturbances in the information flow in these processes can lead to problems, such as delays and/or a lower quality. Therefore, a well-functioning interaction between actors and a well thought out-communication at an early stage is of crucial importance. The main question is "How does the communication of decision and information flow in the building process and what barriers and opportunities can be observed?". This diploma work has been written with guidance from Bjerking AB and to answer this question, a collection of empirical data conducted via semi-structured interviews. Respondents with different roles in the construction processes are from the construction companies Bjerking and Ramböll.

     

    Construction projects are interactions between actors and to fulfill that the customer get the product as described, a well thought out communication in a timely manner is important. From an economic perspective and from a quality and time perspective it is of value to investigate communication and information process and what can be perceived as positive or negative.

     

    It is often about spread information and to make it reach the concerned, but it is also important with a limitation of the information. It is good to check that the information has arrived, but it is also important to have confidence in the project participants. Positive factors for strengthening communication may be to ensure that each actor has a common objective, a holistic interpretation in the project. One barrier might be time optimism when important information and essential decisions are delayed. Feedback, positive and negative, is good for the development of projects.

  • 33.
    Danielsson, Per
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Helander, Fredrik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Vision Nollenergihus: Energiförsörjning av passivhus med sol- och vindenergi2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Climate change is the modern society’s common issue. The developed countries are

    consuming more than what is sustainable, and the climate change due to the use of

    fossil fuels can be seen clearly. EU has specified goals, in order to stop further

    damage, which demand that every member state have to reduce its energy

    consumption by 20 % before 2020 and 50 % before 2050, relative to 1995.

    The Swedish government uses a number of instruments to encourage reduction in the

    usage of energy, but every individual has to contribute to reach the goals.

    With increasing energy price the cost of living is going up. A lot of people are looking

    for ways to save energy and not be affected as much by the increasing price.

    Investments for insulation, replacement of windows and replacing old heating system

    for a new efficient heat pump is getting more and more common.

    This thesis is about investigating the possibilities in becoming independent from buying

    energy for households. The thesis describes ways to use and store the abundant solar

    energy in the summer and transfer it to the winter.

    By building a neighborhood with five so called passive houses and having common

    installations, some costs of the expensive investment can be divided on more than

    one user. Then if the price of energy keeps on rising, it is possible to get a lower living

    cost compared to conventional housing developed according to the Swedish BBR

    demands. This system will become even more profitable when the skills and

    technology is perfected.

  • 34.
    Edlinger, Robert
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Svansbo, Karl
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Axial- och gradientkrympning hos golv på mark enligt Eurokod 2: Sprickbredders beroende av betongkvalité, tvångseffekter och armeringshalt2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Concrete foundation slabs are usually exposed to unilateral drying during the curing process. The unilateral drying causes an axial shrinkage and a concave curvature of the construction. The curvature results from the fact that the upper part of the slab is drying and shrinking faster than the lower part. This is called gradient shrinkage.

    A problem occurs when the slab is considered fully restrained by adjoining structural parts. The deformations caused by axial contraction due to the constant part of the shrinkage and the curvature caused by gradient shrinkage of the slab are then prevented by the fact that the slab is fully restrained. When the shrinkage and the curvature are prevented, constraints occur in terms of an axial force and a bending moment. These constraints cause cracking in the upper part of the slab. These cracks can cause inconveniences for the user of the slab and the cracks should therefore be minimized.

    It is important to determine the precise magnitude of the constraints so that sufficient amount of reinforcement can be applied into the concrete and the crack widths can be reduced.

    The construction consultancy company WSP has an interest in structural design methods for reducing the risk for concrete cracking through establishing engineering guidelines for the structural design of foundation slabs which are exposed to axial and gradient shrinkage.

    The result in this report shows the magnitude of the constraints for slabs of varying thickness and molded with different types of concrete. The constraints are later used to determine the crack widths. Two different reinforcement standards, both in compliance with the minimum requirements of Eurocode 2, are included in the study.

    A conclusion based on the results shows that the amount of reinforcement can be reduced in foundation slabs up to 300 millimeters thickness without significant impact on the crack widths.

  • 35.
    Ekstrand, Robin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Hägg, Axel
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Bristfällig tillbudsrapportering: En sammanställning av attityder och kunskap kring tillbud inom Peab2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction industry stands as one of the industries in Sweden where most employees tend to encounter accidents. At the same time, the Swedish authority of work environment estimates that there are large numbers of hidden statistics with accidents and incidents that never gets reported. To prevent accidents, the Swedish authority of work environment has decided that every company have to, beside report every accident and major incident to the authority of work environment, keep statistics and evaluate every incident that happens at their places of work.

    The people responsible for work environment at the Swedish building contractor Peab, believe that it is only a fraction of all incidents happening at their construction sites that actually gets reported. The purpose of this study is to investigate the reason why employees of Peab do not report incidents. By an inquiry and interviews with both craftsmen and office holders at Peab Bygg Öst 1, the employees’ attitudes and knowledge have been studied and evaluated.

    The study shows that the craftsmen´s knowledge of incidents is relatively low. At the same time, many of the craftsmen think that the reporting of incidents steal too much time and focus from the production.

    The ending part of the report shows suggestions of how Peab can increase the craftsmen´s awareness and interest in reporting incidents. The most important thing is to educate all employees regularly about incidents and the purpose of reporting. Incidents should also become a standard part of the weekly meetings.

  • 36.
    El Mourabit, Samir
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Forsberg, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    BRANDDIMENSIONERING AV STÅL: En jämförelse av dimensioneringsmetoder2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When the construction industry phased out the earlier national construction standards a few years ago and replaced them with the European standards, the rules for fire safety changed. The new design process is complex and not simple to get a full picture of. For that purpose this thesis is written for Sweco Structures AB.

    The main part of this thesis comprises of descriptions and explanations of the existing design methodologies. To better understand the methods in Eurocode, the first chapter contains basic theory of how fires behave and how steel responds to higher temperatures. The following chapters address the simplified calculation methods and their equations. The report also includes a case study of a steel framed industrial building where a critical diagonal was analyzed.

    The analysis showed that the method called critical temperature method is not applicable for components where instability is taken into account. Those components should instead be calculated using the equations given in Eurocode. Therefore the critical temperature method has a very limited use. The analysis also showed that the cost of increasing the dimension of the diagonal was about the same as the cost of coating it with fire resisting paint, but this is very dependent on the situation. The report concludes with discussion and comparison of results.

  • 37.
    Elfström, Johanna
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Singh, Ayushi
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Prefabricerat trähusbyggande med moduler: För- och nackdelar samt förslag på vidareutveckling2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction industry can contribute to a healthier sustainable community. A development that is going on right now is by using more prefabricated volume- and plan elements on the construction sites. Building with this method not only provides a benefit to the environment, but also reduces production rates by taking up to 80 percent less time to build. By building in this way it will be easier to recycle and keep all the material that otherwise would go to waste. Also by building inside a protected environment, the material retains its good quality.

    This report will take forward proposals on further development of prefabricated volume element of wood, by first presenting this construction methods advantages and disadvantages.

  • 38.
    Elvingson, Fredrik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Vindar med begränsad ventilation - Fukttekniska undersökningar2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Tougher fire requirements and the desire to make

    simpler designs have enabled construction companies

    to go from the traditional well-ventilated attic to attic

    with limited ventilation. Theoretically limited ventilated

    winds should perform well. The problem you see if there

    is construction moisture or external moisture sources.

    Problems may occur when the small ventilation is not

    able to remove moisture to the extent necessary.

    Heavier constructions usually have a large amount of

    construction moisture in the attic floor, which can be

    transferred to the attic space. Heavier structures with

    limited ventilated attics have not been studied

    previously.

    AK Consulting was commissioned to evaluate five attics

    to a construction company erected in 2014 and 2015.

    Former investigations showed that there was a risk

    initially with respect to the excess moisture from

    building moisture. This study was carried out with

    theoretical calculations on a model of an existing attic

    with moisture problems.

    The present thesis was commissioned by AK

    Consulting. It evaluated the data and reports from the

    five attics and assesses them with the help of WUFI BIO

    and made theoretical calculations in WUFI.

    The study shows that attics with limited ventilations

    work well initially and that the ventilation of the attic

    does not lead to drier attics. Longer measurement

    periods are required in order to see how the wind works

    in the long term and in different outdoor climates. It is

    difficult to determine the effect of initial

    dehumidification of the winds. The attics have little or

    no excess moisture over the measurement period.

    The recommendations are to dehumidify attics initially

    until further studies have been done on similar

    structures. It is also important to continue monitoring

    the attics in this study to follow up how they work in the

    long term and during years with different climatic

    conditions.

  • 39.
    Engman, Anna
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Uppsalaregionens tillväxt: Möjligheten att förbättra studentersbostadssituation via regionförstoring2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    We are living during the time of urbanization which means that more peoplechoose to settle in big cities. This has resulted in a housing shortage in many ofSweden’s big cities, including Uppsala. Due to long waiting lists and highprices for condominiums students are among the ones hardest hit by thehousing crisis. Growth is expected to proceed and if Uppsala is to be able tohandle this in a sustainable way it requires great efforts in city planning.Through archive studies and interviews this degree project examines thepossibilities for Uppsala to become a conurbation and how this affects thestudents housing situation.The result shows a vision of a future Uppsala with a structure of residentialareas and transport networks that could improve the housing situation forstudents.

  • 40.
    Engström, Niklas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Professionell garantihantering: Ett arbete inom byggnadsbranschen2012Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A business is always dependent on its customers. It is therefore important to ensurethat customers are satisfied with the product and the warranty included.The study was conducted in cooperation with the building contacting companySkanska Sweden. The aim is to use interviews to collect and process experiences in order to answer the question: How should the recovery process in the construction industry be performed to ensure a professional handling of warranty? The results have shaped my conclusions and I have turned them into a proposal that companies in the industry can benefit from. The study indicates that the industry is not geared for a five year warranty, which was introduced in 2004 and 2006. This is manifested by difficulties to prioritize the management of guarantees, with long lead times and customer-, and employee dissatisfaction as a result. Achieving a professional management means to adapt the company to a longer warranty. It means taking responsibility, prioritizing and investing in the organization and effective computer systems. The investment will help to create a stronger brand and increase the profitability for the company. The results suggest that companies should set aside time for staff and implement an aftermarket organization that supports and relieves the staff. An important aspect is that a financial liability for the guarantees should be anchored in the production staff. Otherwise it can result in a reduced quality due to lack of responsibility during the construction process, leading to increased warranty costs. The industry is also in great need of accessible craftsmen that quickly can fix errors. The problem is that most craftsmen today are occupied in the new construction projects, it creates longer lead times for the process. The craftsmen must also be suitable for a job in the aftermarket. The way of handling the issues in the industry are not uniform and are often outdated. Therefore a need exists for a modern and computerized case management system, it would improve the situation for both staff and customers. Companies can also use an evaluation system to rate their partners on how they acted during the warranty period. The information can be valuable for future collaborations. Knowing that a classification is performed can also increase the corporate accountability. Contracts in the future can be added a clause to encourage responsibility for the work during the warranty period. The clause requires a meeting where the contractors, among other things, can agree on a case management system to use. But most important is to pay attention to the work during the warranty period, which must be improved.

  • 41.
    Enocsson, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Kommunikationsstruktur: En undersökning av kommunikation- och organisationsstruktur i en utförandeentreprenad inom anläggningssektorn2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the essay is to investigate a road- and civil engineering company that operates in Stockholm. The investigation will focus on communicative and organizational structure of Birka Markbyggnad AB and especially the main project for this essay, Bro Galopp. The study has been made by polls and by interviews in order to create a reliable result in the end. The essay will end up in some conclusions and suggestions for Birka Markbyggnad AB so that they can improve their organization. 

  • 42.
    Enokson, Oskar
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Holm, Emil
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Kommersiellt byggande i trä: En undersökning av trä som stomval i kontorsbyggnader2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The objective of this report is to evaluate why wooden frameworkis not used more frequently in larger buildings when both contractors and clients profile themselves as environmental friendly, with future goals of becoming neutral to the environment. The biggest incentive to build more with a wooden framework is how the choice of material impacts the climate and work environment at the construction site. It is hard to put a financial value on the benefits for the climate and work environment that a wooden framework provides. This is one of the reasons why the wooden frame is being neglected in the bidding process because it is often more expensive at that point in the construction process.

    Construction industries around the world has a large negative impact on the climate and greenhouse effect and contributes to 40 % of the global carbon emissions. Statistics show that the manufacturing of concrete and steel products used in constructionemits more than twice as much carbon dioxide as wood-based materials. Wood-based materials binds carbon dioxide during its life span and releases it when the product is obsolete.

    Many consider the healthier work environment as a very significant benefit of building with a wooden framework, especially theconstruction workers themselves. A healthy work environment forthe construction workers increase well-being and efficiency at the construction site. Project management is easier when the work situation for the construction workers is prosperous. The wooden framework contributes to a healthier workplace and reduces dust, vibrations from machines and noise considerably, the air is also cleaner and it has a better smell to it.

    Buildings with wooden framework is often being built under a tentof some sort to prevent moisture and rain to penetrate the building causing damage. The tent itself is very expensive tobuild under, and it’s a major reason why framework made of wood is more expensive in the bidding process. Contractors supplying framework-systems made of wood are constructing the building in the same way a steel and concrete frame would be constructed, without materials sensitive to moisture. The wooden frame dries out faster than a frame made of steel and concrete. If the two prefabricated systems are assembled in a similar way the wooden framework can better compete on equal terms with other framework systems in the bidding process.

    The crucial part for an increased usage of wooden frameworks in commercial office buildings is that the contractors and clientsreach a turning point. A turning point in which they accept that the wooden framework appears more expensive in the bidding process but yet they choose it because of the benefits it provides. Only then can the right circumstances be achieved, which leads to an increased use of wooden frameworks in the market.

  • 43.
    Eriksson, Björn
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Nylund, Oscar
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    HANTERING AV JORDMASSOR VID ANLÄGGNINGSARBETEN: En ekonomi- och miljöanalys2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study was carried out on behalf of Peab Construction, a contractor in Uppsala. Peab’s, and hence the authors’ intention was to investigate the handling of excavated material during construction work. A construction site was investigated as a case study, in order to find better ways to minimise the use of uneconomical procedures and environmental impact. The given project was a water and drainage pipe in an area around Uppsala. This study was carried out mainly by using documentation from the project specifications. In addition, considerable information was also acquired from experts at Peab by means of several interviews.

    The investigation was carried out by analyzing and studying the working time and fuel consumption of different machines used in the project. The total cost of the management and the total fuel consumption were calculated for each soil type handling method. The conclusion is that an optimal solution would be to spread the excavated material in the surroundings of the construction site in order to lower costs and attain the smallest possible environmental impact. This conclusion also gives Peab Construction, and other contactors, an estimated value of what they could save financially on similar projects. In addition, they will also be able to supervise in a better way, and limit their environmental impact.

  • 44.
    Eriksson, Felicia
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Samverkanskonstruktioner i stål och betong: prestanda, lönsamhet och utförande: Jämförelse mellan samverkanskonstruktioner och platsgjutna, slakarmerade betongkonstruktioner2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The problem that lays the foundation of this dissertation is thatcomposite structure in steel and concrete is said to have bettercharacteristics than used in practice. The purpose of this report isto compare an composite structure in steel and concrete with a situ,slack reinforced concrete construction. The main task is to examine ifcomposite structure can reach and sustain large span widths, but theperformance and economics will also be considered in the calculations.The method used in this research is mainly based on calculations ofthe different construction types, but of course, a theroetical part isalso necessary including literature searches to provide a goodbackground. In addition, a study visit is conducted to see theperformance of a collaborative design and to interview the workers.The result showed that composite structure works very well with largespan widths, while slack reinforced concrete constructions were not assuitable. The concrete construction need a beam with a width of 750 mmand the height at 1050 mm and also a concrete floor with a thicknessof 250 mm. Composite structure consists of a HEB600 and a concretefloor with the thickness of 250 mm wich gives a deflection of 36,7 mmat the length of a 12 meter span. The conclusion of this research isthat composite structure has a great area of use with large spanwidths.

  • 45.
    Eriksson, Fredrika
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Att bygga ett socialt hållbart samhälle på ett ekonomiskt och hållbart sätt: Vad använder sig byggherrar i Malmö stad, Göteborgs stad, Skanska och föreningen Byggemenskap av för att skapa social hållbarhet2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report gives a picture of different things a developer in Sweden can use to

    increase the social sustainability. The studied parts are Bygga om Dialogen in Malmö,

    Älvstaden in Gothenburg, Vivalla in Örebro and association Byggemenskap.

    By interviewing one person from each area similarities and differences were studied

    to compare their work with social sustainability. In Malmö and Örebro their work is

    to increase the social sustainability for restoration objects and how to get whole

    areas that have long had a bad reputation to become socially sustainable with the

    main focus being on hiring long-term unemployed people, in Gothenburg and within

    the association Byggemeskap, the focus is to increase the social sustainability at new

    housing estates and how we can build new tenancies with a lower rent then

    apartments have today.

  • 46.
    Eriksson, Joachim
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Heikkilä, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Vad brister i bygghandlingar mellan arkitekt och leverantör?: En studie som undersöker brister och orsaker i bygghandlingar, samt föreslår förbättringar2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In the company IN3PRENÖR and also generally in the construction industry, a lot of time is spent sorting out deficiencies and problems in construction documents between architects and suppliers during the design phase. The problem today is that the architects draw construction documents that do not correspond to the products that are on the market.

    The purpose of this report has been to identify which deficiencies occur in construction documents between the architects and the suppliers and provide recommendations and improvements to the industry.

    The extent of the report has been limited to the shortcomings that occur in construction documents during the design phase between architects and suppliers. Also the interviews have been limited to architects, suppliers and purchasers.

    When compiling the interview study, it showed that the most frequent shortcomings in construction documents are that the proposed solutions are not compatible with the supplier's assortment and that custom solutions have incomplete drawings and shortcomings which can not be used for manufacturing. Modification of products often leads to the requirements not being met.

    The most common reasons why there are deficiencies in the building documents have been compiled to. lack of inspection, lack of communication, lack of knowledge, lack of time, the public procurement act and it is also unclear what information is required in construction documents between architects and suppliers to ensure manufacturability.

    Based on the causes and shortcomings, a number of different recommendations were compiled to the industry through the suggestions for improvement received by the interview study. Recommendations that the industry can use to minimize deficiencies in construction documents between architects and suppliers are that more communication is needed, better review of construction documents and clearer information from the supplier. This is summarized at the end of the report.

  • 47.
    Eriksson, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Mehlberg, Axel
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    PLATTA TAK: En utredning om vad som bör beaktas vid projektering och utförande2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Flat roofs have been common for many decades. They were first build in dry and mountainous areas, then they were spread in the entire world. Today flat roofs are present in all type of buildings. In Sweden they are mostly used in larger houses like shopping malls, industrial buildings and apartment blocks. Flat roofs are very exposed for the elements and since the roof is flat water can easily be stationary. The water will then start drain through slots and the construction will be destroyed. The purpose of this study is to evaluate flat roof construction of today in consideration to leakage and moisture problems. Are today's constructions any good? Are today´s building materials the ones that should be used in tomorrow's constructions? Focus has also been made to evaluate new possible solutions for the construction were prefabricated elements is one.The most leaks can be found were bushings has been made that don’t follow the acquis available. The quality of the construction is good, but there are other circumstances that creates the problems. It’s of great importance to keep water away from the construction under the production time. One way to do that is by making a weather protection. Because of the high cost it is not very common.Prefabricated roof elements have a lot of advantages. Since they are built in controlled indoor conditions building moisture is not a problem. When the roof elements come to the construction site they are already finished and the assembling will go fast and the house will be densely directly. There are some aspects that need further investigations such as transportation of the roof elements.

  • 48.
    Eriksson, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Fuktstyrning av inomhusklimatet på Skoklosters slott: En utvärdering av avfuktning, skyddsvärme och fuktstyrd ventilation2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Moisture control of the indoor climate in Skokloster

    castle

    Rickard Eriksson

    Moisture control aims to reduce the risks associated with high relative humidity (RH)

    to avoid the emergence and growth of mold. In historic buildings with little or no

    demand for thermal comfort there are, to lower RH, mainly three active climate

    actions. These are heating, dehumidification and adaptive ventilation. The methods

    have been used in Skokloster castle (an unheated baroque castle between Uppsala

    and Stockholm) for three years to enable decision making of what climate control

    strategy that can prevent mold growth in a energy efficient way. Each action lasted for

    a year in three different case study rooms. To see the effect of the actions, three

    reference rooms with no actions were used. Temperature and RH was measured for

    all years and rooms. In the case study rooms energy use was registered.

    The result shows that the need for active climate control has been low, which can be

    shown by studying the energy use. The energy use is generally low for all actions and

    should not be crucial for the future choices. The result is in many ways difficult to

    interpret, but it shows that it would be too risky not to apply moisture control in

    Skokloster castle. An important conclusion is that it is largely the exceptions that have

    navigated the equipment and that the exceptions therefore should navigate the choice

    of the climate control strategy.

  • 49.
    Erkstam, Erika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Nyberg, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Är fiberarmerad sprutbetong motiverad ur bärighetssynpunkt?: En jämförelse med traditionell släntning och jordspikning2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis is written on behalf of Skanska, Väg- och Anläggning Stockholm Mälardalen, vid Nya Karolinska Sjukhuset i Solna, NKS. The report has resulted in recommendations for the method of soil stabilizations of soil nailing, excavation of slope and fiber reinforced shotcrete, which is the most suitable method from a safety and a cost point at the NKS.

    The aim of this thesis was to investigate whether fiber reinforced shotcrete increases slope stability, with the focus being on the total stability. The main goal was to investigate which method of soil stabilization is the most suitable for the slopes that are analyzed in this report. Through studying literature, the authors have gained an understanding about the theoretical background for the given problem. Through calculations and analyses of the slopes, safety factors have been acquired. These, factors of safety, have then been compared with requirements under Skredkommisionen. The costs of each method of soil stabilization have been calculated. The factor of safety and the cost for each method have been compared, to be able to give recommendations which method is more suitable of the two. The results show that excavation of slope satisfies the requirements for slope stability at the lowest cost.

  • 50.
    Erlandsson, Erik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Jonsson, Martin
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
    Vibrationsmätning: Förslag på placering av vibrationsmätare i moderna byggnader2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report aims to outline a number of attachment methods for the geophones used in vibration measurements. On behalf of Bjerking AB and their department for environmental control and vibration, a new attachment method has been developed that works on today’s building designs.

    Suggested mounting methods include some methods with their main stronghold in the foundation’s outermost layer and some with mounting in the concrete inside the foam. The best method is to drill through the foam and with a concrete screw - suitable for concrete drilling without plug - and anchor the geophone in the concrete. Due to the difficulty to get a hold of these screws with the required length and diameter for the current case, a similar approach with available material has been developed. This method includes a hammer drill, a threaded rod, an expander and two nuts.

    The conclusion drawn is that the attachment of the concrete is preferable and that this can be achieved with relatively simple means. Other methods require extensive knowledge of the building’s design as well as advanced and time-consuming tools.

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