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  • 1.
    Abdi Mohammed, Farhan
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    A Said, Mahdi
    Dalarna University, School of Technology and Business Studies, Construction.
    Möjligheten att utföra LCA i en totalentreprenad: En studie om LCA i en totalentreprenad2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The environment is an important issue in society today. Emissions contribute to medium temperature rises gradually allowing the consequences on the nature, climate and society. The construction industry accounts for approximately 40 % of all energy use in Sweden. The environment in various ways, namely that different lifestyles and ways of life such as heating residences, waste management, travel to and from work affects the adverse impact on the environment. With the help of the growing awareness of the environment and the impetus given to it by the public authorities to reduces the environmental impact and energy use. LCA is a systematic analysis that is new in the construction industry where construction processes measured by the flow of energy and material usage. LCA can help decision makers by performing the LCA can be developed in analytical evaluations environmentally. Without LCA would investment, costs may be the most important thing for the decision makers than the environmental benefits. The aim of this work is to perform a life cycle assessment in the construction process with total construction and following questions is: • Possibilities to perform LCA in this construction form? • What demands are made from the client? • Possibilities and difficulties with total construction to perform LCA? The aim of this thesis is to illustrate how a life cycle analysis can be performed in a total construction. The study will highlight the role of the client. The focus will be on project Kungsljuset in Borlänge. The method of accounting analysis of the life cycle of the construction project is used and performed in a total construction. Interviews with the project management for this object. The result was unfortunately that there was a lack of data for the implement of LCA in this project. The reason was the knowledge and interest of the lack of both the client and the material supplier. It is required that the client demands on the material supplier and entrepreneur to specify the material and other resources used in this construction project.

  • 2.
    Abdulahad, Aziz
    et al.
    Dalarna University, School of Information and Engineering.
    Ohlsson, Martin
    Dalarna University, School of Information and Engineering.
    Analys av fuktsäkerhet hos hybridelement kontra sandwichelement2022Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study is a thesis within the construction engineering program at Dalarna University in Borlänge. This thesis highlights the new hybrid element and its moisture-related properties, as well as comparing hybrid elements with the old proven solution of sandwich elements out of moisture perspective. This study is of interest as the construction industry needs new, more sustainable solutions that this hybrid element offers.

    The purpose of this study is to compare moisture properties of both sandwich and hybrid elements out of interviews and simulation of hybrid- and sandwich element with the help of a WUFI program. A further purpose is to analyse the behaviour of both elements when exposed to different amounts of moisture, investigate possible moisture-related problems in these elements and the possibility of building with hybrid elements instead of sandwich elements.

    The results of the study confirm that hybrid elements are theoretically an acceptable solution when it comes to moisture safety. At the same time, the conclusion concludes that a good tightness of a wall is an important parameter, but is not always enough to guarantee moisture safety, but tightness needs to be completed with careful design and execution.

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  • 3.
    Abrahamsson, Lena
    et al.
    Luleå tekniska universitet, Arbetsvetenskap.
    Enander, Mats
    Olsson, Hans
    Luleå tekniska universitet.
    Ranhagen, Ulf
    Luleå tekniska universitet, Arkitektur och vatten.
    Fallstudierapport: Iggesunds bruk. Efterbehandlingen. Arbetsrapport1993Report (Other academic)
  • 4.
    Abrahamsson, Lena
    et al.
    Luleå tekniska universitet, Arbetsvetenskap.
    Enander, Mats
    Luleå tekniska universitet.
    Olsson, Hans
    Luleå tekniska universitet.
    Ranhagen, Ulf
    Luleå tekniska universitet, Arkitektur och vatten.
    Förstudie av massabalshanteringen vid Iggesunds kartongbruk: arbetsrapport1996Report (Other academic)
  • 5.
    Ackemo, Sandra
    Dalarna University, School of Technology and Business Studies, Construction.
    Hästanpassade vägar: I Leksands Kommun2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Approximately 13 000 persons get injured every year in Sweden while riding or handling a horse. Due to regulations, a horse is not allowed on to the walk- and cycle path or the sidewalks. Since some places don’t have paths developed for the horse, the equipage is forced out in trafficked roads. The horse is a prey animal, they run first and then they stop to see what the potential threat was. This, in combination with car driver´s general lack of knowledge about horses, could increase the possibility of an accident.The purpose of this project is to evaluate if the equestrian practitioners find it difficult to be in traffic environment with the horse and how commonly practitioners use public roads with the horse. The purpose is also to provide a review of how well the equestrian practitioners are aware of the traffic rules regarding horses in traffic. The main purpose of this thesis is, however, to offer suggestions on how road design should be improved with regard to road safety, security and accessibility for equestrian practitioners.

    The study was carried out with a questionnaire and studying literature. The questionnaire was handed out to 38 members of the riding club of Leksand. The results show that the knowledge of traffic rules could be increased among the ones who answered the questionnaire. They also think that the horse needs to be a part of the community and infrastructure planning and that all road-users need to learn more about horses in traffic, to better understand its behavior. Other proposals are lowered speed limits for motorized traffic at

  • 6.
    Adolfsson, Julia
    Dalarna University, School of Technology and Business Studies, Civil planning and Construction.
    Strukturplan: Ett verktyg för att planera den framtida fysiska strukturen?2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Arbetet handlar om ett planeringsverktyg i samhällsplaneringen som har benämningen strukturplan. Syftet med arbetet är att undersöka strukturplaners innehåll och om det är ett användbart planeringsverktyg till efterföljande planering som ingår i den formella planeringsprocessen enligt plan- och bygglagen. Även att undersöka varför kommuner väljer att göra en strukturplan som anses vara en informell plansort, istället för att använda de verktyg som plan- och bygglagen erbjuder. Samt undersöka om tidigare forskning stämmer att kommuner använder strukturplaner för att undvika plan- och bygglagsprocessen.

    Arbetets forskningsdesign är fallstudie med en komparativ analys, fallen som valt är; Utvecklad strukturplan för Nacka stad, Strukturplan Storvreten, Strukturplan Forsåker, samt Strukturplan för Lina.

    Metoderna som använts i arbetet är kvalitativ innehållsanalys och semistrukturerade intervjuer.

    Resultatet av innehållsanalysen visar att en strukturplan är ett dokument som på ett övergripande sätt visar den tänkta fysiska grovstrukturen för ett visst geografiskt område i kommunen inom några år. Strukturplanen innehåller kartor, text och bilder som främst visar framtida markanvändningen, befintliga- och framtida bostäder, grönstruktur och trafikstruktur. Den kan även innehålla andra kartor, exempelvis etappindelning och våningsantal, som kommunen tycker är väsentliga att ha med.

    I de semistrukturerade intervjuerna svarade intressenterna att strukturplanen är ett användbart planeringsverktyg till efterföljande planering och används istället för en fördjupning av översiktsplanen för att undvika plan- och bygglagens formella process. Vilket resulterar i att det stämmer överens med den tidigare utredningen En effektivare plan- och byggprocess (SOU 2013:34), ), att kommuner tar fram en strukturplan för att undvika PBL-processen.

    Slutsatsen är att kommuner väljer att göra en strukturplan som lyfter planeringsfrågor och löser planeringsproblem på en övergripande nivå och ska främst användas som ett internt strategisk planeringsverktyg. En strukturplan skapas för att det finns ett högt krav på att publicera bostäder från politikerna och för att den kommunala planeringsprocessen är tidskrävande. Därför väljer kommunen att frångå arbetet med PBL, och gör istället en strukturplan som planeringsverktyg för tidsbesparing och behöver inte genomföra PBLprocessens formella delar.

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  • 7.
    Afzali, Faizullah
    et al.
    Dalarna University, School of Information and Engineering, Construction.
    Rashid, Renas
    Dalarna University, School of Information and Engineering, Construction.
    Främjande av återbruk av byggmaterial: En kvalitativ studie om branschens uppfattningar kring potentialen hos ekonomiska incitament2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This paper highlights the importance of economic incentives in stimulating the reuse of building materials in Sweden. Although the construction industry recognizes the benefits of reuse, the study shows that there are insufficient economic incentives to make it a standard practice. Through semi-structured interviews with representatives from the construction industry and a literature review, the study identified several barriers such as quality assurance, building regulations, lack of knowledge, and economic challenges.The purpose of the study was to investigate what economic incentives could promote the use of reused building materials and identify potential barriers to their implementation.The findings suggest that there are currently no direct economic incentives that encourage construction companies to reuse building materials. Several obstacles have been identified, including challenges related to quality guarantees, building regulations, lack of knowledge, and economic difficulties. The study also emphasizes that more extensive political and economic initiatives are needed to stimulate the use of reused building materials. The paper contributes to the existing research by providing recommendations to policy makers and other actors in the construction sector who are interested in promoting sustainability and environmentally friendly methods. It suggests that future research should focus on designing and testing specific economic incentives to promote the reuse of building materials. In its conclusions, it emerges that construction companies identify a multitude of obstacles and challenges when reusing building materials. It also appears that there is a noticeable lack of economic incentives from the state to promote the use of reused building materials in construction projects. Construction companies suggested different forms of economic incentives that could promote the use of reused building materials, including grants, tax relief, and digital platforms. There was also a variation in political opinions regarding the idea of introducing economic incentives to promote the reuse of building materials, with some supporting the idea and others opposing it.

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  • 8.
    Agirman, Nesim
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Ali, Mustafa
    Dalarna University, School of Technology and Business Studies, Construction.
    U-värde av isoleringsmaterial i en kassett: En experimentell jämförelse mellan en fönsterkassett som har isolering och en utan isolering2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Insulation and insulation material is one of the most important components in the construction industry and has a wide range of applications and therefore the demand is huge. Because of the high costs on the market, new and different researches take place every day to find alternative insulation materials. The technology make the opportunities greater to find and use cheaper materials. Therefore, it is not un common to see insulations made of different materials every day.

    The purpose of this study is to investigate two Moniflexcassettes, one with insulation and one without, in a climate chamber, to then compare their u-values.

    The results showed the influence on the insulation, that the u-value was lower on the cartridge with the insulation, and therefore a proof that the insulation can use as an additional insulation. This applied especially for windows and glass portions who have a high u-value, which mean that windows and glass portions do not have to change to newer windows with lower u-values.

    The company Isolight´s current u-value of the cassette with the isolation was not the same as with the tested U-value in Högskolan Dalarnas climate chamber. On the cassette without insulation, there has been no comparison between the tested value and the value of the company because the company does not have a u-value for that.

  • 9.
    Ahlgren, Mathias
    et al.
    SWECO.
    Jansson, Lisa
    SWECO.
    Wredh, Gustav
    SWECO.
    Ranhagen, Ulf
    SWECO.
    Multifunktionella ytor: Översikt med rekommendationer utifrån ett Västeråsperspektiv2018Report (Other academic)
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  • 10.
    Ahlin, Jan
    et al.
    KTH.
    Nilsson, Bengt
    KTH.
    Ranhagen, Ulf
    KTH.
    Arbetsområden och arbetslokaler inom industrin: Programmering och projektering. Program för ett utvecklingsprojekt vid institutionen för arkitektur, KTH1971Report (Other academic)
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  • 11.
    Albatrok, Husam
    Dalarna University, School of Technology and Business Studies, Construction.
    Våningspåbyggnad i trä på befintligt betong bostadshus2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    During the years 1965–1975, the politicians chose to start a large housing development, which resulted in a million homes being built in 10 years. It was called Miljonprogrammet. Tjärna Ängar is an area located in Borlänge where some of those building took place. The area has 1,179 apartments in 3-storey slab houses and the Tjärna Angar area is divided into three different blocks: Kornstigen, Klövern and Plogstigen. These are built next to Tjärna center, with good bus connections to the rest of Borlänge.

    The purpose of this work was to produce a storey building for an existing slab of concrete. the reference building is at Kornstigen 25.

    With the help of Drawings, the existing building will be studied. Information search will be done on the subject regarding floor buildings and the history of the million program and construction. Walls and ceilings will be developed and an extension for the lift. Finally, a model is made in a Cad-programe that illustrates the result.

    The result of the storey building was a wooden walkway with a total of 10 apartments. Two corner apartments became three rooms and the kitchen while the rest became two rooms and kitchens in varying surfaces. Storey building wood is a good way to be able to build on the heigt, but many aspects considered and be and checked before a storey buildig takes place.

  • 12.
    Ali, Samir
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Hanna, David
    Dalarna University, School of Technology and Business Studies, Construction.
    Hjälpmedel till resenärer i kollektivtrafiken som inte kan ta till sig vanliga skyltar på ett enkelt sätt2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report aims at investigating how traffic management can help disabled and elderly. Although more than 800,000 people travel with SL every day, many elderly and disabled find it difficult to travel using public transportation. Through interviews, different associations representing different disabilities have reported that they feel a lack of information and they feel insecure. Many choose not to travel with public transportation. The investigation has resulted in two different solutions, the advantages and disadvantages of the different solutions are discussed as well. A WEFEEL bracelet that communicates with both the passenger and the bus driver via signals to facilitate the perception that the correct bus is on its way, signal if the traveller has a need for assistance, etc. The second solution proposal WEFIND is ground plates with diodes in the form of arrows that show the path when traffic disturbances occurs and redirects the passengers. Both solutions work for many different groups and also for travellers without special needs (arrows). The solutions take into consideration the environmental issue but have not been further investigated in terms of instalment and economy. The conclusion is that the suggested solutions can help travellers feel safer and thus travel more using public transport.

  • 13.
    Almlof, Erik
    et al.
    KTH Royal Inst Technol.
    Zhao, Xiaoyun
    Dalarna University, School of Information and Engineering, Microdata Analysis. KTH Royal Inst Technol.
    Pernestal, Anna
    KTH Royal Inst Technol.
    Jenelius, Erik
    KTH Royal Inst Technol, Div Transport Planning, Stockholm, Sweden..
    Nybacka, Mikael
    KTH Royal Inst Technol.
    Frameworks for assessing societal impacts of automated driving technology2022In: Transportation planning and technology (Print), ISSN 0308-1060, E-ISSN 1029-0354, Vol. 45, no 7, p. 545-572Article in journal (Refereed)
    Abstract [en]

    Numerous studies have studied the impacts of automated driving (AD) technology on e.g. accident rates or CO2 emissions using various frameworks. In this paper we present an overview of previous frameworks used for societal impacts and review their advantages and limitations. Additionally, we introduce the Total Impact Assessment (TIA) framework developed by the Swedish Transport Administration and use this framework to evaluate three scenarios for AD bus services in Stockholm. We conclude that the reviewed frameworks cover different aspects of AD technology, and that e.g. cybersecurity and biodiversity are areas largely neglected. Furthermore, most frameworks assume effects to be homogenous, when there may be large variation in e.g. perceived security. The TIA framework does not manage to include all societal aspects of AD technology, but has great benefits and manages to provide important insights of the societal impacts of AD technology, especially how effects may wary for different actors.

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  • 14.
    Alsén, Felix
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Gustafsson, Niklas
    Dalarna University, School of Technology and Business Studies, Construction.
    Utformning av dragband i en KL-T konstruktion med hänsyn till olyckslast: En beskrivande studie hur kraven för olyckslast bestäms och hur sammanfogning av dragband kan utföras i en KL-T konstruktion2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The interest to build in wood has increased in combination with grown knowledge in the subject. CL-T are wooden board that can be shaped in many different form, beams, pillars, wall and floor elements can all be made as CL-T elements. Ration between strength and weight is one aspect that has contributed entrepreneurs and designers to see the benefits of building in wood. CL-T is a product that reduce the weaknesses of the wood in different fiber directions since the slats are glued together crosswise. The rapidly increasing use of CL-T has left knowledge gaps, one of these knowledge gaps is how the robustness of a building can be increased to handle accident loads.

    Progressive collapse occurs when a local failure creates a collapse in surrounding structural elements and then propagate from element to element, leading to collapse of whole or part of the building. To counteract this a certain level of robustness must be achieved. There are various methods to create robustness in a building, one of these methods are to tie the walls to the floor with tension ties as described in Appendix A of SS-EN-1991-1-7. This method is called indirect method and is frequently used today for all types of structures. But for concrete structures it is considerably more well developed with general methods of how to tie the structure together. How vertical and horizontal ties should be designed in a CL-T construction need distinct methods that meets meet the capacity requirement set by the regulations.

    The purpose of the thesis is to create and understanding of the current regulations and to provide concrete examples of how tension ties can be carried out to meet the new requirements in EKS 11. It should also show what the indirect method is and how the requirements are met using it.

    The thesis shows the capacity of three different types and tension ties set in scenarios where they are used as both vertical and horizontal ties. Calculations show that the different types of ties behave differently depending on if they act a vertical or horizontal tie and which location in the building they have. Furthermore, the capacity requirements and the formulas adaption to CL-T designs are discussed.

    To create conditions that the industry can take on, reduction of the minimum requirements for tie capacity in constructions with a lightweight structural system needs to be made clearer when dimensioning against accidental loads with the indirect method.

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  • 15.
    Andersen, Martin
    et al.
    Dalarna University, School of Information and Engineering, Energy Technology. Chalmers University of Technology, Gothenburg.
    Bales, Chris
    Dalarna University, School of Information and Engineering, Energy Technology.
    Dalenbäck, Jan-Olof
    Chalmers University of Technology, Gothenburg.
    Heat distribution concepts for small solar district heating systems – Techno-economic study for low line heat densities2022In: Energy Conversion and Management: X, ISSN 2590-1745, Vol. 15, article id 100243Article in journal (Refereed)
    Abstract [en]

    The high operating temperatures in today’s district heating networks combined with the low energy demand of new buildings lead to high relative network heat losses. New networks featuring lower operating temperatures have reduced relative heat losses while enabling an increase in the use of solar heat. The primary aim of this study was to determine if a particular district heating system can be made more effective with respect to heat losses and useful solar energy, by considering different distribution concepts and load densities. A small solar assisted district heating system with a novel hybrid distribution system has been modelled based on a real case study. This model serves as a basis for two other models where the distribution system and heating network operating temperature is changed. A secondary aim of the study was to determine the economic implications of making these changes, by using costs estimates to calculate the contribution of essential system components to total system cost. Results indicate that a novel distribution concept with lower network temperatures and central domestic hot water preparation is most energy efficient in a sparse network with a heat density of 0.2 MWh/m∙a and a performance ratio of 66%, while a conventional district heating system performs worst and has a performance ratio of less than 58% at the same heat density. In an extremely sparse network with heat density of 0.05 MWh/m∙a, the performance ratio is 41% and 30% for these systems, respectively. A simple economic analysis indicates that the novel distribution concept is also best from an economic point of view, reducing the initial investment cost by 1/3 compared to the conventional concept, which is the most costly. However, more detailed calculations are needed to conclude on this.

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  • 16.
    Andersson, Adam
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Berggren, Pontus
    Dalarna University, School of Technology and Business Studies, Construction.
    Utvärdering av träbjälklag i ett äldre flerbostadshus med avseende på stegljud och nedböjning: Mätningar och möjliga åtgärder och åtgärdsförslag2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    New buildings will only maginally contribute to future quantity of residential housing. Therefor new knowledge of past building technics are required, to asses which action propsals are suitable when interventions are considered. Objective. This study aims to evaluate lightweight timber joist floors in a multi-story residential building from 1903, with regard to footfall noise and deflection. Method. Data has been collected with a survey and through measurements of footfall noise and deflection. The purpose of the survey is to evaluate the residentals subjective perception of footfall noise and deflection. Footfall noise has been measured with a tapping machine in accordance with Swedish Standards. The deflection has been measured with Leica NA2 paired with a parallel-plate micrometer, GFS1, for precise leveling assessment. Results. The survey shows that the residents don’t experience any issues with regard to footfall noise and deflection. The measurements show a L’nT,w+CI,50-2500 level of 55 dB and an average deflection of 0.320 mm/kN. Conclusion. Footfall noise- and deflection levels satisfy today’s requirements according to Swedish Standards and therefor the results doesn’t motivate any action proposals or interventions.

  • 17.
    Andersson, Daniel
    et al.
    Dalarna University, School of Information and Engineering.
    Warnerfjord, Alexander
    Dalarna University, School of Information and Engineering.
    Påbyggnad med förstärkningstomme i befintlig byggnad: Konstruktionsval för invändig förstärkningsstomme av trä2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The different counties in Sweden have been reporting about the increasing housingshortage in the country for a long time. To counteract this shortage, 60 000- 70 000residences need to be produced yearly in Sweden till 2029. In the 60s-70s Swedenalso faced big challenges with housing shortage due the urbanization from thecountryside of Sweden to the cities. The result was to build on a large scale in aIndustry-like ways and the consequences of this was that green areas around thecities were exploited to make room for new residential areas. To not repeat thehistory again an alternative option could be to densify the already built urbanenvironment with for example building extensions.In an already existing urban environment, there are many different types ofbuilding, this also means that there are many different types of extensions. Thepurpose of the work is to: for a reference house located in the central area of Falun,find an alternative way for a building extension in wood where the already existingbuilding is not added by any load from the extension. Another purpose with thework is therefore to contribute with knowledge around the subject, buildingextensions in wood.The building that has been the starting point of this work is located in the centralarena of Falun and was built in the late 60s. The building extension that the projectcame up with is of “light construction” and the reinforcement frame in massivewood technique with columns and beams. The reason why to use a real referenceobject is to give the work a real construction to relate to when analyzing thepossible placing of the columns. The dimensioning of the building extension andthe reinforcement frame is done with manual calculations that are based on theapplicable rules in Sweden, Eurocode and EKS. The building has also beenmodeled in Revit to give an illustration on the building extension with thereinforcement frame but also the building in its entirety after the buildingextension.The result of the reinforcement frame is in many ways similar to a “trä8”-system.Columns and beams take the vertical load and the existing buildings system ofjoist, walls and stairwells in concrete contribute to the frame stability. Throughanalyzing the drawing of the existing building, the placement of the columns hasbeen done according to different parameters. The beams that are placed on top ofthe columns have then been controlled for the current spans with the current loadsfrom the manual calculations of the building extension. The result and theconclusions that can be done from this work is that the construction's critical partis the beams placed on the columns and not the columns itself. The dimensions ofthe beams are crucial for how many floors that are possible to build on thecolumns that are placed. Also, the weight of the building extension has an impactin the quantity of the columns and therefor longest spans for the beams

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  • 18.
    Andersson, Julia
    et al.
    Dalarna University, School of Information and Engineering.
    Liedström, Matilda
    Dalarna University, School of Information and Engineering.
    Effekten av olika logistiklösningar: En studie kring fördelar och nackdelar med tredjepartslogistik och inbärning till ett projekt i Dalarna2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Within the construction industry the advantages of looking at the logistics todifferent projects has been acknowledged during the past couple of years.This study has been written in collaboration with Skanska Sverige AB. Thepurpose of the study is to, in different ways, examine what advantages anddisadvantages there are in using the logistics solutions terminalization (also knownto be a part of Third Party Logistics) and inside delivery to a specific project inDalarna, Sweden. This project is a remodeling project of a school with studentsfrom six to sixteen years old. Within the school area new parts of the school isbuilt while students are located in the yet existent buildings. This infer thatstudents move around the construction sites daily. The study also involves thirdparty people and how these people feel about the large transports connected to theproject. The inside delivery utility is then discussed based on the securityexperience within and around the construction site along with the economic andecological perspective of the service.The methods used in this study are interviews with three people of the projectmanagement, one person that works with logistics at the company, the headmasterof the younger students, skilled workers and third party people. Furthermore afield study is done that includes measurements and observations. As a close,calculations are done to determine if a economical profitability could be possibleby using inside delivery.Results from the study show how the logistics solutions terminalization and insidedelivery is looked at within Skanska today. Here, the advantages anddisadvantages with the different services are displayed from the perspectives of thepeople who were interviewed. The results from the measurements from the fieldstudy presents how many third party people that move adjacent to the two activeconstruction sites when the school day begins. The calculations show that it iseconomically beneficial to use inside delivery after the end of the workday whileused with terminalization.Conclusions of the study indicate that there are no overall solutions regarding howthe logistics must be used in different projects. If there is a possibility to use terminalization in the area where the project is situated, this, along with insidedelivery, is a good alternative for the project.

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  • 19.
    Andersson, Linnea
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Ekeblad, Jenny
    Dalarna University, School of Technology and Business Studies, Construction.
    Energieffektivisering av klimatskal - miljonprogrammets flerbostadshus: Tjärna Ängar, Borlänge2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    During The Million Homes Programme, 1964 – 1975, over one million homes were built and it’s now time for an extensive modernization of these buildings.

    The purpose of this work was to see how the building envelope of a multifamily building from the Million Homes Programme can be energy efficient. This was done through enquiries and calculations, and by comparing these to current and future requirements of energy use. The enquiries that have been conducted were tests of impermeability and thermography. The calculations suggest both individual and combined actions to improve the building envelope.  The enquiries and calculations do not consider installations, architectural values, or economy, only how much the energy use can be optimized through improving the building envelope. 

    The best result achieved through combined actions was a reduction of energy use by 32,3 %. The individual action with the best result was the replacement of windows and balcony door: 16,4 % reduction of energy use.

    Only the building envelope has been taken in to account in this rapport which means that a greater improvement is possible if installations also is included.

    An important conclusion of the project is that the building envelope has a great effect on a building’s energy usage. The requirements of energy use that come into effect January 1, 2021 can be accomplished by only correcting the deficiencies in the building envelope.

  • 20.
    Andersson, Mikael
    et al.
    Dalarna University, School of Information and Engineering, Construction.
    Barrioz, Gabriel
    Borlänge kommun.
    Nordström, Louise
    Borlänge kommun.
    Ranhagen, Ulf
    Dalarna University, School of Information and Engineering, Construction.
    Svensson, Tony
    Dalarna University, School of Information and Engineering, Construction.
    Rönnelid, Mats
    Dalarna University, School of Information and Engineering, Energy Technology.
    Energiinnovation Jakobsdalen: Workshopserie hösten 20212022Report (Other academic)
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  • 21.
    Andersson, Mikael
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Lind, Christoffer
    Dalarna University, School of Technology and Business Studies, Construction.
    Genomstansning i betong: En jämförelsestudie mellan Eurokod 2, Strusoft Winstatik Punching och Eurocode Software caeEc230.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Computers have become invaluable for advanced calculation tasks in most industries.

    Formerly, designers had to rely on his skills and knowledge to perform calculations.

    Nowadays, designers can execute a calculation without the need to use the actual formulas

    behind. It is recommended by experienced designers that some of the programs used in the

    building industry, which are based on the European Eurocodes needs to be validated.

    The aim of this study has been to calculate the punching capacity of ordinary reinforced

    slab and to design the shear reinforcement, according to Eurocode 2. The method was a

    theoretical study of the Eurocodes. A calculation sheet for punching capacity was made in

    Mathcad. The calculations from the sheet were compared to Winstatik Punching and

    caeEc230. The work has been defined to include only an inner column on a concrete slab

    with a circular cross section without any column heads or other reinforcements. In order to

    achieve realistic calculations, nine cases with different slab thicknesses and spans were

    manipulated.

    The capacities from the three calculations were nearly identical, both at the columns

    perimeter and at the control perimeter. The greatest differences were found in the design of

    the shear reinforcement. They showed similar amount of reinforcement in terms of area, but

    offered no guidance on the design. CaeEc230 suggested about double the amount of rebar

    cuts than the calculations in Mathcad. Winstatik Punching reported no total at all.

  • 22.
    Andreason, Ellen
    Dalarna University, School of Technology and Business Studies, Construction.
    Grundvattenhantering i vägskärning: Överväganden, problem och bedömningar kring grundvattnet genom planerandet och byggandet2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Questions and problems related to groundwater management are important in road construction, especially at a cutting slope. The thesis describes the problems encountered during the construction of a road caused by high levels of groundwater. The aim of the thesis was to follow up considerations, problems and assessments considering groundwater connected to the building phase. Four specific aims were formulated; description of erosion control and of the assessments made considering groundwater and its effect on the construction, monitoring groundwater levels during the building phase and to do a simple theoretical calculation of the groundwater levels. 

    To meet the objective several methods were selected, literature review, surveys, interviews with people professionally related to the project and field measurements of groundwater tables.

    Measures to prevent erosion can be divided into vegetative and landscaped, either with soil and rock fills on the slopes or with various ditches. During the project, the design for the road and hillsides changed. Problems with groundwater and erosion have been important for the modified construction. Groundwater levels outside the intersection first increased, probably due to the deforestation and then dropped during the excavation. All but one pipe at the intersection show a lowering of the groundwater during the excavations and a smaller increase during snowmelt than in previous years. The calculated level of groundwater shows in one pipe a level far below the measured, indicating a continuing decrease, in the other pipe a higher level is calculated.

    Advanced vegetative erosion control systems are relative uncommon in Sweden today. Measurements of the groundwater tables should be carried out for a long time to provide a reliable reference level. Knowledge of the soils in the cutting intersection is important in the context of groundwater management together with a sufficient communication between those involved in the construction process. The groundwater levels in the intersection will probably continue its declining trend. Reliable calculations of groundwater tables are complex and their result can still be questioned.  

  • 23.
    Andrée Back, Johan
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Rolin, Tomas
    Dalarna University, School of Technology and Business Studies, Construction.
    Behovsstyrd ventilation: En fallstudie för zonstyrd ventilation i ett flerbostadshus2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction sector accounts for a large part of the primary energy use globally. In order to prevent global warming and to achieve the goals set by Sweden together with the EU, major changes are required in the sector. Energy requirements to heat and cool properties is an important part of this change and for people's well-being. The problem with many of today's system is that they are using more energy than needed and energy efficiency is a must to achieve the goals. Through innovative and smart systems, human needs can be safeguarded while energy requirements is reduced. The purpose was to investigate, through a case study, whether a new ventilation system for apartment buildings could make energy consumption more efficient while at the same time a high indoor comfort could be obtained. Only one apartment is considered which is located in Hedemora, Dalarna. The method was to install a demand-controlled ventilation system in the apartment and measure air quality, air temperature and air flow rate with the help of sensors The new ventilation system is then compared with two common ventilation strategies (extract air and natural ventilation).The energetic evaluation is based on measured air flow rates solely. The result was then compared to government recommendations regarding carbon dioxide levels. The measurement data shows that the demand-controlled ventilation system in most cases reaches the recommendations while the energy demand is lower. An important conclusion from the degree thesis is that ordinary ventilation strategies such as natural draft and exhaust air give a worse indoor climate compared to the demand-controlled system.

  • 24.
    Angantyr, Anders
    Dalarna University, School of Technology and Business Studies, Energy and Environmental Technology.
    Lågenergibyggande i Dalarna mars 20122012Report (Other academic)
    Abstract [sv]

    Inom ramen för projektet Energi- och miljökompetenscentrum vid Högskolan Dalarna har en kortare studie av lågenergibyggande i Dalarna gjorts. Syftet med rapporten är att ge en sammanställning av det aktuella läget på området i Dalarna.

    Det finns idag ett flertal bygginitiativ, både privata och allmännyttiga, i Dalarna där man ansträngt sig när det gäller energihushållning. En handfull av dessa kommer nog att uppfylla passivhuskraven enligt FEBY, exakt hur många går dock inte att säga pga infomationsbrist och med tanke på osäkerheten i energiberäkningarna.

    En annan slutsats är att medvetenheten om lågenergibyggande på kommunal och allmännyttig nivå är i allmänhet god och att energihushållning är ett område som ges stort fokus vid den nybyggnation som sker.

    När det gäller det privata byggandet av villor så sker det mesta av byggandet enligt hustillverkarnas typspecifikationer. Då tak, grund och ventilationssystem oftast i princip är samma som för passivhus kan det konstateras att egentligen ganska små förändringar i konstruktion och utförande av detta byggande skulle kunna ge hus enligt FEBYs passivhuskrav eller åtminstone minienergihuskrav.

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  • 25.
    Aras, Diyar
    Dalarna University, School of Information and Engineering.
    Byggfel i produktion: Vanligaste uppkommande byggfelen i byggprocessen2023Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [sv]

    Byggfel vid upprättande av byggnationer genomsyrar byggbranschen och står för onödigt höga kostnader av den totala byggkostnaden. Denna problematik har under de senaste åren uppmärksammats markant av både aktörer inom byggbranschen, samt av samhället. Enligt en rapport upprättad av Boverket (2022) uppnår dessa kostnader närmare 100 miljarder kronor och därmed sänker värdigheten i de investerade pengarna. Syftet med denna rapport är att upplysa problemområdet, och utifrån samverkan med aktörer som är delaktiga i byggprocessens olika skeden, försöka undersöka vilka byggfel som är vanligast och vart dess brister uppkommer. Utifrån det som påvisas så ska konkreta åtgärder och förbättringstips lyftas fram. Syftet och frågeställningarna i rapporten förväntas besvaras och uppnås via kvalitativa studier. Dessa studier kommer att upprättas i from av intervju och litteraturstudie. Intervjuerna kommer att hållas med aktörer inom byggbranschen som medverkar i byggprocessens olika skeden, detta urval ska ge möjligheten att få tankar och idéer utifrån olika synvinklar. Byggfelen som anses vara vanligast förekommande är fukt och vattenrelaterade skador, samt montering och infästning. Denna typen av skador uppkommer på olika platser i byggnationer, men främst i badrum och våtrum, takfönstermontering, fönsterdörrar och tyngre dörrar. De bakomliggande orsakerna till uppkomsten av dessa skador är bristande i kunskap, erfarenhet och tidspress. Bristande kunskapen och erfarenheten anses vara en central faktor i både projekteringen och produktionen, medan tidspressen framhävs tydligast i produktionsfasen. För att få bukt med byggfel-problematiken krävs det specifika enskilda åtgärder för de olika problemområdena genomförs. Ansvarstagandet hos de olika aktörerna i byggbranschen behöver öka, både i planering, utförande och kravsättning.

  • 26. Arell, Åke
    et al.
    Ranhagen, Ulf
    Sweco AB, Stockholm.
    Näsby park - An industrial village for small firms1989In: When people matter: Nordic Industrial Architecture & Engineering Design / [ed] Anders Thörnqvist & Peter Ullmark, Stockholm: Swedish Council for Building Research [Statens råd för byggnadsforskning] in cooperation with the Swedish Work Environment Fund [Arbetsmiljöfonden] , 1989Chapter in book (Other academic)
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  • 27.
    Argårds, Mattias
    Dalarna University, School of Technology and Business Studies, Construction.
    Analys av lägenhetsskiljande bjälklag: Fallstudie av produktion av flerbostadshus i Sälenfjällen2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In construction of apartments several parameters determines the choice of production method. Costs and production time for the various operations are two important parts , As early as the planning stage it is important to have a clear picture of the different solutions' and its prerequisites to simplify the choice of production method.

    For new construction projects in Sälenfjällen the tight production times makes it important to know whether any solution could involve considerable delays in production time. On the other hand faster construction methods may also lead to higher costs.

    The thesis has been limited to four different floor constructions which are Finjas “Combi bjälklag”, “plattbärlag”, cross laminated timber and Dala cements “Daladekk”. The calculation has been linked to a reference building in Sälenfjällen and a supposed new production of four similar buildings.

    With the help of the structural design calculations were carried out to estimate the costs each approach brings, it also performed one simple analysis of the time spent.

    The result shows that it is best economical to build with "plattbärlag", followed by cross laminated timber. At the same time plattbärlaget and its construction has a risk for delayed production times, which mean it may be advantageous to chose the solution with cross laminated timber.

  • 28.
    Asplund, Eva
    et al.
    Naturvårdsverket.
    Hedlund, Anders
    Naturvårdsverket.
    Ranhagen, Ulf
    VBB.
    Bärkraftig utveckling i samhällsplanering: tre idéuppsatser1996Report (Other academic)
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  • 29.
    Belash, Daniel
    Dalarna University, School of Information and Engineering.
    Hållbar förflyttning: Omvandling av en bilanpassad stad till en gång- och cykelvänlig stad2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Our immediate future faces major challenges that need to be solved to continue our existence. Human impact on the Earth has reached global proportions due to our way of living and exploiting natural resources without much consequence. The human quest to live more comfortably and abundantly has led to urbanization and technological progress that has created resource-consuming tools such as transport. In the last part of modern history, urban planning has taken a new turn and cities have become increasingly adapted to our vehicles, negatively affecting social, economic, and ecological sustainability.

    This thesis aims to use previous research to find solutions that could transform car-adapted cities into more walking and cycling-friendly cities. The work is applied in the city of Borlänge, which is in Dalarna and has been strongly characterized by the development of automobilism. The importance of the work is to highlight solutions that can also be used in other cities regardless of geographical location or size.

    The reviewed literature has created a detailed and comprehensive basis to enable further work with the development of measures that can solve the purpose of the study. The literature has been selected according to relevance to the subject of urban planning to present a similar focus of knowledge, which has made the text more coherent. Most of the literature is scientific articles and books.

    The work has been carried out with the help of a place inventory that helped to discover various characteristics of the existing environment and the selection of two pedestrian and bicycle paths for the development of design proposals. Previous research has provided the basis for the measures presented in the form of design proposals. 

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  • 30. Berg, Harald
    et al.
    Jägbeck, A.
    Ranhagen, Ulf
    Stjernberg, T.
    Grannskapscentraler: Lägesrapport, etapp 11982Report (Other (popular science, discussion, etc.))
  • 31. Berg, Harald
    et al.
    Jägbeck, Adina
    Ranhagen, Ulf
    VBB.
    Stjernberg, Torbjörn
    Bostadsnära arbetsplatser med ny teknik: i Nykvarn och andra visioner1985Report (Other academic)
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  • 32. Berg, Harald
    et al.
    Jägbeck, Adina
    Ranhagen, Ulf
    Stjernberg, Torbjörn
    Grannskapscentraler: arbetsmiljö, organisation och genomförande - Etapp 11983Report (Other (popular science, discussion, etc.))
  • 33.
    Bergenståhl, Hans
    et al.
    Statens råd för byggnadsforskning.
    Lagheim, Per
    Statens råd för byggnadsforskning.
    Ranhagen, Ulf
    VBB.
    Lokala energikällor och energisnål bebyggelseutformning i Skrubba arbetsområde, Stockholm: förprojektering1984Report (Other academic)
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  • 34.
    Berggård, Glenn
    et al.
    Luleå tekniska universitet.
    Goldbach, Stine Gissel
    Atkins Danmark A/S.
    Hansen, Sten
    Atkins Danmark A/S.
    Ranhagen, Ulf
    FFNS AB; Luleå tekniska universitet; Sweco.
    Sewring, Göran
    Tyrèns Infrakonsult AB.
    Val av prioriterade korridorer för Norrbotniabanan med hjälp av Multikriteriaanalys2003In: Transportforum 2003: Rapportsammanställning av föredrag i Linköping 8–9 januari 2003, Linköping: Statens väg- och transportforskningsinstitut, 2003Conference paper (Other academic)
    Abstract [en]

    Choosing alternative corridors for the Norrbotniabanan by the use of Multi-Criteria Analysis

    During 2002-2003 a pre-feasibility study of a possible Norrbotnia railway is conducted. Norrbotniabanan is a new coastal railway, between Umeå-Luleå-Haparanda, in total some 400 km of line. An important part of this study is to identify potential corridors and select corridors for further investigation. This is done in a dialogue with local authorities throughout the study. Due to the number of possible corridors and possible combinations along the line Umeå - Robertsfors – Skellefteå – Piteå – Luleå – Boden – Kalix - Haparanda the final number of alternatives is quite large. In general choosing some ”best” alternative is not an easy task, when many alternatives occur. Many effects have to be taken into account e.g. construction cost, time savings, various impacts on environment etc. Many of these impacts cannot easily be incorporated into a traditional cost-benefit analysis, nevertheless they play an important role in decision making. Multi Criteria Analysis (MCA) is a suitable decision aid tool in such a planning situation. As part of the Norrbotniabana study a simple MCA was carried out. A set of criteria for selecting alternatives was identified. At a seminar with participants from regional and local planning authorities and other interested parties, these criteria were evaluated for each alternative on a simple score from 1-5. Afterwards the relative importance of each criteria was estimated. This was done in groups. The consequences of these scores and weights were then analysed in the PC-tool Decision Criterium Plus. The presentation will report the results of the Multi Criteria Analysis and comment on the lessons learned from the practical use of MCA in the planning process. During 2002-2003 a pre-feasibility study of a possible Norrbotnia railway is conducted. Norrbotniabanan is a new coastal railway, between Umeå-Luleå-Haparanda, in total some 400 km of line. An important part of this study is to identify potential corridors and select corridors for further investigation. This is done in a dialogue with local authorities throughout the study. Due to the number of possible corridors and possible combinations along the line Umeå - Robertsfors – Skellefteå – Piteå – Luleå – Boden – Kalix - Haparanda the final number of alternatives is quite large. In general choosing some ”best” alternative is not an easy task, when many alternatives occur. Many effects have to be taken into account e.g. construction cost, time savings, various impacts on environment etc. Many of these impacts cannot easily be incorporated into a traditional cost-benefit analysis, nevertheless they play an important role in decision making. Multi Criteria Analysis (MCA) is a suitable decision aid tool in such a planning situation. As part of the Norrbotniabana study a simple MCA was carried out. A set of criteria for selecting alternatives was identified. At a seminar with participants from regional and local planning authorities and other interested parties, these criteria were evaluated for each alternative on a simple score from 1-5. Afterwards the relative importance of each criteria was estimated. This was done in groups. The consequences of these scores and weights were then analysed in the PC-tool Decision Criterium Plus. The presentation will report the results of the Multi Criteria Analysis and comment on the lessons learned from the practical use of MCA in the planning process. 

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  • 35.
    Berghauser Pont, Meta
    et al.
    Chalmers tekniska högskola.
    Hannula, Nina
    Göteborgsregionen.
    Isemo, Sanna
    Urban Futures.
    Ranhagen, Ulf
    Dalarna University, School of Information and Engineering, Construction.
    Förtätning av stationsnära områden för god tillgänglighet: Utveckling av en analys- och utvärderingsmetod2022Report (Refereed)
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  • 36.
    Bergkvist, Johanna
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Strandberg, Linda
    Dalarna University, School of Technology and Business Studies, Construction.
    En pedagogisk byggnad för hållbar utveckling: Utformning av en programhandling för ett kretsloppshus med fokus på social och ekologisk hållbarhet2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to establish a functional program for an eco-cycle building where people can bereached with knowledge of sustainable development. The background to this is that the municipality ofBorlänge approved a plan program with the vision of creating a new, climate neutral district and therebybecome a precursor for sustainable construction in the region. For instance, the functional program is meantto investigate the background and the prerequisites that existed. In the municipality’s plan program, thebuilding is described to have an educational function for the district and for Borlänge; a place which focuseson practical demonstrations and education for students and residents in recycling issues for energy, waterand waste/material in a comprehensible and compelling way. The eco-cycle building is planned to beestablished near the new school, with classes from 6 to 9, to make a cooperation possible.Requests from the municipality is that the eco-cycle building can work like a hub in the new district, butalso become a new place of interest and put Borlänge on the map for sustainable construction. Sustainableconstruction includes resource management, minimized energy use and renewable energy sources, but alsothat resources like energy, waste and water circulate in an eco-cycle. Theory has been obtained fromliterature focusing on how we should build our houses and cities if we want to join and create a sustainablesociety.Part of the purpose of this thesis was to explore how to disseminate information on environmental andcircular issues in an educational way. The theoretical part of the thesis is therefore focusing on selected partsof education obtained from previous research in children and youth learning for sustainable development,since studies show that it is important that children learn about these issues early in life. Education forSustainable Development is an important prerequisite for achieving the sustainability goals set by the UNuntil 2030. Upcoming generations must learn a sustainable way of life right from the start while the existingpopulation must drastically change their lifestyle.In order to gather empiricism, interviews were held with people who have been involved in the planningwork with the new district. It turned out that there were former driving spirits who introduced the idea of theeco-cycle building, but that it doesn’t currently are the major priority in the ongoing work with the newschool and housing.Engaging the users at an early stage provides better conditions for achieving a result that is effective andsatisfying for all parties. The theory of design dialogues has therefore been studied to demonstrate theimportance of a good dialogue to quickly identify needs and develop ideas in design work.The result of the thesis, the functional program, can be seen as a draft on conceptual level with features andexpressions that can be applied to a building of this kind, and an inspiration for continued work. In thefunctional program, our interpretations form how the eco-cycle building would meet the requests andfunctions that’s been requested in the plan program, in order to benefit as much as possible in themunicipality's future work with the building.Conclusions are that there are no precursors of the eco-cycle building as a concept. Despite a large numberof sources of inspiration from various aspects, no example was found that combines all the aspects we havethe ambition to develop for this building. The eco-cycle building as a concept could play an important rolefor how to handle sustainable issues in a district or in a whole city. However, further work is required toinvestigate how the building should be run and managed, as well as more extensive studies of whichtechnical solutions to apply. Further work is also required to optimize the building for the future location,and the size of the building that are appropriate. There is a great interest in the building from variousparticipants in Borlänge, but to implement the idea of the eco-cycle building, one or more people need toembrace the project with the commitment that previously existed in the organization.

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  • 37.
    Bergkvist, Johanna
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Strandberg, Linda
    Dalarna University, School of Technology and Business Studies, Construction.
    En pedagogisk byggnad för hållbar utveckling: Utformning av en programhandling för ett kretsloppshus med fokus på social och ekologisk hållbarhet2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to establish a functional program for an eco-cycle building where people can be

    reached with knowledge of sustainable development. The background to this is that the municipality of

    Borlänge approved a plan program with the vision of creating a new, climate neutral district and thereby

    become a precursor for sustainable construction in the region. For instance, the functional program is meant

    to investigate the background and the prerequisites that existed. In the municipality’s plan program, the

    building is described to have an educational function for the district and for Borlänge; a place which focuses

    on practical demonstrations and education for students and residents in recycling issues for energy, water

    and waste/material in a comprehensible and compelling way. The eco-cycle building is planned to be

    established near the new school, with classes from 6 to 9, to make a cooperation possible.

    Requests from the municipality is that the eco-cycle building can work like a hub in the new district, but

    also become a new place of interest and put Borlänge on the map for sustainable construction. Sustainable

    construction includes resource management, minimized energy use and renewable energy sources, but also

    that resources like energy, waste and water circulate in an eco-cycle. Theory has been obtained from

    literature focusing on how we should build our houses and cities if we want to join and create a sustainable

    society.

    Part of the purpose of this thesis was to explore how to disseminate information on environmental and

    circular issues in an educational way. The theoretical part of the thesis is therefore focusing on selected parts

    of education obtained from previous research in children and youth learning for sustainable development,

    since studies show that it is important that children learn about these issues early in life. Education for

    Sustainable Development is an important prerequisite for achieving the sustainability goals set by the UN

    until 2030. Upcoming generations must learn a sustainable way of life right from the start while the existing

    population must drastically change their lifestyle.

    In order to gather empiricism, interviews were held with people who have been involved in the planning

    work with the new district. It turned out that there were former driving spirits who introduced the idea of the

    eco-cycle building, but that it doesn’t currently are the major priority in the ongoing work with the new

    school and housing.

    Engaging the users at an early stage provides better conditions for achieving a result that is effective and

    satisfying for all parties. The theory of design dialogues has therefore been studied to demonstrate the

    importance of a good dialogue to quickly identify needs and develop ideas in design work.

    The result of the thesis, the functional program, can be seen as a draft on conceptual level with features and

    expressions that can be applied to a building of this kind, and an inspiration for continued work. In the

    functional program, our interpretations form how the eco-cycle building would meet the requests and

    functions that’s been requested in the plan program, in order to benefit as much as possible in the

    municipality's future work with the building.

    Conclusions are that there are no precursors of the eco-cycle building as a concept. Despite a large number

    of sources of inspiration from various aspects, no example was found that combines all the aspects we have

    the ambition to develop for this building. The eco-cycle building as a concept could play an important role

    for how to handle sustainable issues in a district or in a whole city. However, further work is required to

    investigate how the building should be run and managed, as well as more extensive studies of which

    technical solutions to apply. Further work is also required to optimize the building for the future location,

    and the size of the building that are appropriate. There is a great interest in the building from various

    participants in Borlänge, but to implement the idea of the eco-cycle building, one or more people need to

    embrace the project with the commitment that previously existed in the organization.

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  • 38.
    Berglund, Gustaf
    et al.
    Dalarna University, School of Information and Engineering.
    Johnsson, Axel
    Dalarna University, School of Information and Engineering.
    Takstolslösningar i garagebyggnader med inredd vind.: Undvika pelare i garageutrymmen2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study focuses on possible roof truss solutions in garages with furnished attics. The text writers, on behalf of AB Karl Hedin whose customers' wishes have sometimes been difficult to achieve. This is because large spans are needed to create as large an area in the attic as possible. Customers also request the garage area to be completely open, namely. Without the carrying aid of, for example, pillars or partitions. There are many ways to erect conceivable rafters for garages with furnished attic, problems are added when the spans become too large. The problems are based on both material use, construction solutions and dimensions. To design a rafter at present time, the construction of construction requirements, loads and calculation models is controlled depending on the desired span of the rafters, as well as the area of use in the attic space. With the help of, among other things, literature study, calculations and analyses, proposals have been discussed on construction parts, materials and development opportunities for the rafters in question. Based on the chosen range, different solutions have been reviewed to achieve the best possible result. The calculations have shown that a collaborative support leg wall is a good method that extends the span up to 2m on a building. Steel carrying line has also proven to be a good construction solution that extends the span of the floor beams. With the chosen dimension of steel beam in this study, the depth of the building must be considered to meet the construction requirements regarding torque force and deflection. The properties of the materials and the intended methods for solving the problem of large spans have since been compared against each other to determine which method is best suited for the intended purpose. The material properties chosen for the comparison are the materials that the roof truss manufacturer currently has access to, which was a limitation for this study.

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  • 39.
    Bergström, Mattias
    Dalarna University, School of Information and Engineering.
    En jämförande livscykelanalys mellan olika material för en fristående bulkvägg: En studie som jämför betong och stål/plåt som material för en fristående vägg ur ett utsläppsperspektiv2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The construction and real estate sector accounts for 21% of domestic greenhouse gas emissions, making it a significant factor in Sweden's efforts to reach its climate goals, with the long-term goal being to have no net emissions to the atmosphere by 2045. By creating a life cycle assessment (LCA), the amount a building contributes to the greenhouse effect throughout its lifespan can be calculated. Hallbyggarna is the leading Nordic provider of tent halls, including bulk halls specifically designed for storing unpackaged materials. This study aims to investigate the environmental impact of a free-standing wall in a bulk hall, comparing the impact of a sheet metal wall to that of a concrete wall in the product stages (A1-A3). To construct the sheet metal wall, a simulation of the horizontal forces the bulk material will exert on the wall was required. One Click LCA was the software used in this study. When creating a life cycle inventory (LCI), an environmental product declaration (EPD) or generic data (average data) is selected, followed by the product quantities in One Click LCA. Once the LCI is complete, an impact assessment (LCIA) can be conducted and analyzed. The study revealed that a concrete structure of this size emits 103 tons of CO2e, while a sheet metal wall construction with 0% recycled steel in the frame emits 60 tons of CO2e. A comparison was made using a steel frame containing 100% recycled steel in the sheet metal wall construction, resulting in a 12% reduction in CO2e emissions compared to the sheet metal wall construction with 0% recycled steel.

  • 40. Birchall, Sarah
    et al.
    Gustafsson, Marcus
    Dalarna University, School of Technology and Business Studies, Energy Technology. KTH.
    Wallis, Ian
    Dipasquale, Chiara
    Bellini, Alessandro
    Fedrizzi, Roberto
    Survery and simulation of energy use in the European building stock2016Conference paper (Refereed)
    Abstract [en]

    the work towards increased energy efficiency. In order to plan and perform effective energy renovation of the buildings, it is necessary to have adequate information on the current status of the buildings in terms of architectural features and energy needs. Unfortunately, the official statistics do not include all of the needed information for the whole building stock.

     

    This paper aims to fill the gaps in the statistics by gathering data from studies, projects and national energy agencies, and by calibrating TRNSYS models against the existing data to complete missing energy demand data, for countries with similar climate, through simulation. The survey was limited to residential and office buildings in the EU member states (before July 2013). This work was carried out as part of the EU FP7 project iNSPiRe.

     

    The building stock survey revealed over 70% of the residential and office floor area is concentrated in the six most populated countries. The total energy consumption in the residential sector is 14 times that of the office sector. In the residential sector, single family houses represent 60% of the heated floor area, albeit with different share in the different countries, indicating that retrofit solutions cannot be focused only on multi-family houses.

     

    The simulation results indicate that residential buildings in central and southern European countries are not always heated to 20 °C, but are kept at a lower temperature during at least part of the day. Improving the energy performance of these houses through renovation could allow the occupants to increase the room temperature and improve their thermal comfort, even though the potential for energy savings would then be reduced.

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  • 41.
    Björklund, Alice
    Dalarna University, School of Information and Engineering.
    Barnkonsekvensanalys som verktyg för samhällsplanering: En fallstudie om kommunal planering av skolvägar i Borlänge och Falun2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The increase in the number of cars that has taken place from the mid-1950s to the beginning of the 2000s has developed into a major societal problem that affects the perceived security among many children and their guardians. Many guardians experience that the school area and the road between home and school is insecure. For that reason, many parents choose to transport their children to and from school by car, which affects the children who are still walking, or cycling as they are exposed to even greater risk. The free choice of school in combination with the establishment of independent schools has further aggravated the situation as the children get a longer way to school when the parents are free to choose a school. When the children are no longer placed in the nearest school, it becomes difficult for the municipalities to predict which roads will be used as school roads. As a result, many school roads are not designed with the children in focus, which would have been favorable. In this study, a case study was conducted on two medium-sized municipalities in Dalarna with the aim of investigating how they work with planning school routes and whether child impact assessment is a tool used to ensure the best interests of children. The results may indicate that there is a gap between theory and practice as none of the municipalities carry out child impact assessments. One of the municipalities also tells that they have no routine for conducting dialogues with children and young people even though there is now a statutory requirement that children should be given the opportunity to express their opinion on all issues concerning them, according to the Convention on the Rights of the Child. A survey has been conducted to examine what guardians of children in middle school think about the traffic safety along their children's school roads and how their children travel to and from school. It turns out that most of the children in grades 4-6 in the selected schools walk or cycle to and from school on their own. The survey indicates that 12% of the children in Borlänge and 16% of the children in Falun are transported to school. Most guardians considerit is practical or convenience that the children are transported by car. 

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  • 42.
    Björklund, Alice
    Dalarna University, School of Information and Engineering, Civil planning and Construction.
    Barnkonsekvensanalys som verktyg för samhällsplanering: En fallstudie om kommunal planering av skolvägar i Borlänge och Falun2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The increase in the number of cars that has taken place from the mid-1950s to the beginning of the 2000s has developed into a major societal problem that affects the perceived security among many children and their guardians. Many guardians experience that the school area and the road between home and school is insecure. For that reason, many parents choose to transport their children to and from school by car, which affects the children who are still walking, or cycling as they are exposed to even greater risk. The free choice of school in combination with the establishment of independent schools has further aggravated the situation as the children get a longer way to school when the parents are free to choose a school. When the children are no longer placed in the nearest school, it becomes difficult for the municipalities to predict which roads will be used as school roads. As a result, many school roads are not designed with the children in focus, which would have been favorable. In this study, a case study was conducted on two medium-sized municipalities in Dalarna with the aim of investigating how they work with planning school routes and whether child impact assessment is a tool used to ensure the best interests of children. The results may indicate that there is a gap between theory and practice as none of the municipalities carry out child impact assessments. One of the municipalities also tells that they have no routine for conducting dialogues with children and young people even though there is now a statutory requirement that children should be given the opportunity to express their opinion on all issues concerning them, according to the Convention on the Rights of the Child. A survey has been conducted to examine what guardians of children in middle school think about the traffic safety along their children's school roads and how their children travel to and from school. It turns out that most of the children in grades 4-6 in the selected schools walk or cycle to and from school on their own. The survey indicates that 12% of the children in Borlänge and 16% of the children in Falun are transported to school. Most guardians consider it is practical or convenience that the children are transported by car.

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  • 43.
    Björkstrand, Victoria
    et al.
    Dalarna University, School of Information and Engineering.
    Leidevall, Malin
    Dalarna University, School of Information and Engineering.
    Ökat återbruk av byggmaterial genom digital publicering: En inblick i Dala återbyggdepå2022Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [sv]

    Borlänge kommun har infört miljömål som handlar om samhällets styrning för att den byggda miljön ska användas, utvecklas och bevaras på ett hållbart sätt. För att uppnå ett miljösmart och långsiktigt byggande behöver återbrukandet av byggmaterial öka och för att främja detta grundades Dala återbyggdepå av ett anta laktörer i Borlänge kommun. Depån fungerar som en fysisk butik med återbrukat material som har lämnats in av företag eller privatpersoner. Kundkretsen består idag mestadels av privatpersoner men syftet med denna studie har varit att undersöka hur efterfrågan från aktörer i byggbranschen på återbrukat byggmaterial kan öka och om digital publicering av produkter kan vara en väg till det. För att ta reda på detta gjordes studiebesök på Dala återbyggdepå och litteraturstudier på ämnet. Intervjuer gjordes med en beställare och en entreprenö som verkar i kommunen för att få deras perspektiv på vad som skulle krävas. Studien har visat att det är nödvändigt för Dala återbyggdepå att ta ett steg mot digital försäljning för att öka efterfrågan och ett förslag till materialhanteringsrutin har arbetats fram. Sammanfattningsvis har studien även visat att det finns fler utmaningar för användandet av återbrukat material i byggbranschen. Med dagens krav på dokumentation blir det svårt att uppnå godkänd nivå mot miljömål och beställare behöver ange redan i handlingarna att återbrukat byggmaterial ska användas. Slutligen kan det krävas en ändrad inställning från branschen som ger återbrukat material högre status och att företag värderar den miljömässiga vinningen högre för att fler ska vilja, våga och kunna bygga hållbart med återbrukat material.

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  • 44.
    Björling, Jimmy
    Dalarna University, School of Technology and Business Studies, Construction.
    Digitala ritningar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In todays building industry there is a need for using of digital construction

    drawings. The purpose of this report is to inquire into, the will of the employers in

    Byggpartners to use digital drawings in their daily work and if the different

    drawing systems distinguishes from each other

    The method selections in this report is survey, semi structured interviews, and

    time experiments. The studies show that the new digital technique worked well

    and gave reliable and useful results. One important conclusion of this project is

    that digital drawings are more time saving comparing to paper drawings. By

    reviewing the use of digital drawings, one can easily prevent some problems

    which might otherwise be associated with the opposition of digital drawings out

    in the building place.

  • 45.
    Blomqvist, Stina
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Helgesson, Robin
    Dalarna University, School of Technology and Business Studies, Construction.
    Framtagning av yttervägg för småhus: En analys med hänsyn till kommande energikrav2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today is the specific requirements for the building’s energy use in new buildnings. These requirements come under the EU directive to be tightened firmly to the year 2020. This work was the basis of an interpretation of the coming energy requirements, 2020 requirements, designing a new energy-efficient exterior wall construction. This has been done with Fiskarhedenvillan and the construction has been valued in terms of material cost, assembly and the square meter price.

    By calculations and fact finding, demonstrated how energy in small houses could be reduced by replacing the insulating material to a material with lower heat conductivity. The method was to interpret the coming energy requirements and analyze Fiskarhedenvillan current wall construction. Next, search for information and facts about various insulation materials and then design a new proposal on the exterior wall construction.

    The outer wall construction is a crucial factor for the building envelope energy efficiency. Because Fiskarhedenvillan chosen to focus only on the outer wall, this work is delimited to that part of the building envelope.

    An important conclusion of this work is that the 2020 objectives can be met by improving the exterior wall construction and that it is possible to make a design that meets the requirements in entire Sweden

  • 46.
    Bransell, Karin
    Dalarna University, School of Technology and Business Studies, Civil planning and Construction.
    Prioritering av åtgärder för ökad säker cykling: En modell för att underlätta för Trafikverket vid val av åtgärder2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The main goal of my work was to develop a model that could facilitate Trafikverkets (the Swedish Transport Administration's) work in prioritizing different cycling measures. In order to develop a model, I first had to study the various tools available. This in order to be able to develop a model that suited my purpose. I have also examined the reasons why different decisions need to be made. It then became the basis of my model. In addition to studying different models and decision-making processes, I also needed to examine possible cycling measures. The measures could both increase the flow of cyclists and increase road safety. All to give the bike a bigger role in society and reduce car dependency. The result shows the model developed as well as some parameters that hopefully will make the process faster for Trafikverket in prioritizing. The parameters are also valued so that they can be used directly in the priority model.

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  • 47. Breitholtz, C.
    et al.
    Ranhagen, Ulf
    Förslag ger liv i Sundsvall1990In: Bygg- och fastighetsutveckling, ISSN 1101-6922, no 3, p. 34-35Article in journal (Other (popular science, discussion, etc.))
  • 48.
    Brinkebäck, Eric
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Jönsson, Johan
    Dalarna University, School of Technology and Business Studies, Construction.
    Fallstudie av moderna timmerhus: Kvalitetskontroll av nybyggda timmerhus mot FST:s kvalitetsnormer och BBR:s kommande energihushållningskrav2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A study has been conducted to investigate how log houses will meet the new requirements regarding U-value and specific energy use with primary energy factor as a basis, which will be put into use in 2017. In the study, two houses have been investigated. Both houses were constructed with 200 mm thick logs without any additional isolation. Both houses have geothermal heating systems. The study found that the new requirements will be rough against timber house constructions with geothermal or electricity as a heating system, since a primary energy figure of 1.6 will be multiplied by the total energy consumption when heated by electricity.

  • 49.
    Brosius, Isabelle
    Dalarna University, School of Technology and Business Studies, Construction.
    Utfackningsväggar i trä: En tid- och kostnadsjämförelse mellan prefabricerade och platsbyggda byggmetoder2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    To win procurements today, it is important that you as an entrepreneur choose the most effective resource and production methods. That already in the calculation stage, decide how high degree of prefabrication the project should have, is favorable to promptly adapt the workplace in order to get the best output.

    In Mora, Skanska has a block workshop that among other things manufactures curtain walls. Skanska has expressed a desire for a study of the differences in time and cost between their precast curtain walls and site-built curtain walls in order to see for which construction projects it may be appropriate to make use of their precast curtain walls.

    The purpose of this project is to facilitate the choice of production method for the manufacture of curtain walls, depending on the construction project's requirements regarding:

    • If the project has a short or long timetable.
    • How many square meters of curtain-wall the project needs.
    • Distance to block workshop.

    The work is defined to include construction projects that have a bearing frame with lightweight curtain walls of wood. The production methods studied for building curtain walls in wood is prefabrication and site-built.

    The production cost has defined to only conclude the cost of the work and the expenses of the workplace, no costs for the materials that are built-in are included. The cost of the built-in materials is assumed in this work to be the same whether the curtain walls are site built or prefabricated.

    With unit times from the block workshop, has a production time for prefabrication of curtain walls been calculated. For the site-built curtain wall, unit times from Nybyggnadslistan 1999 has been retrieved and used to calculate a manufacturing time for building the wall in place. A cost benefit analysis has been done comparing the different manufacturing cost. The cost benefit analysis show the amount of wall area required to choose prefabricated over place built at the highest profit.

    The result shows that to manufacture and mount one square meter of prefabricated curtain wall takes 0,135 hours less time than that place build the same amount. Time on site is reduced by 0,578 hours per square meter when using precast curtain walls.

    The result also shows that the cost to manufacture one square meter of curtain-wall is 32.77 SEK lower than that place build the same amount of curtain-wall. The thing that pulls up the cost of precast curtain walls is the transport. A fully loaded truck with 370 m² of wall can be transported 43 Swedish miles before profitability ceiling is reached.

    The time at the construction place, is getting shorter when using prefabricated curtain walls, leading to reduced costs in the workplace.

    For a construction project located at a distance of 30 Swedish miles from block workshop, is it profitable to choose prefabricated curtain walls, if the object needs 256 m² or more square meters of wall. For construction projects that require a smaller number of square meters of curtain walls, it is more profitable to use the site-built curtain walls. Especially if the construction project is located at a far distance from the block workshop.

    Important conclusions from this thesis are:

    • Shorter production time for precast curtain walls, which results in a lower production cost.
    • The time on the construction site is reduced by the use of precast curtain walls.
    • For long trips, a larger number of square meters precast curtain walls is needed to make the use of prefab to be profitable.
    • The use of precast curtain walls means less need for storage of materials on the construction site.
  • 50. Brunnberg, Håkan
    et al.
    Ranhagen, Ulf
    En bandstad med esplanad och spårvagn1989In: Plan : tidskrift för planering av landsbygd och tätorter, ISSN 0032-0560, no 3, p. 93-99Article in journal (Other academic)
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