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Academic literature on the topic 'Dimensionering betong'
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Dissertations / Theses on the topic "Dimensionering betong"
Pirgholizadeh, Nezar, Tafid Krikor, and Jeny Krikor. "Dimensionering och analys av stålfiberarmerad betong : En mekanisk, ergonomisk och ekonomisk jämförlelse med konventionell armerad betong." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44387.
Full textLaurén, Sofia. "Dimensionering av betongkonstruktioner : En jämförande studie av BBK 04 och Eurokod 2 vid dimensionering av balkar och pelare." Thesis, KTH, Byggteknik och design, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-49182.
Full textI Sverige använder man idag BKR och BBK 04 vid dimensionering av betongkonstruktioner vilka, inom kort tid, kommer att ersättas av Eurokod 2. Vid dimensionering av byggnader kommer Eurokod 2 Del 1-1 att användas och med regelverket kommer en hel del nya regler och normer att behöva anpassas. För att undersöka hur BKR och BBK 04 skiljer sig mot Eurokod 2 vid dimensionering av betongkonstruktioner har en balk och en pelare med vanligt förekommande dimensioner studerats. Balken dimensioneras med hänsyn till bärförmåga vid böjning och tvärkraft samt kontroll av sprickbildning. Pelaren dimensioneras med hänsyn till bärförmåga vid centriskt tryck och moment i tvärsnitt på grund av strukturimperfektioner. BBK 04 har gått ett steg närmare Eurokod 2 än tidigare utgåvor och det som skiljer vid beräkning av armering, är hur partialkoefficienter används. BBK 04 reducerar armeringen och betongens karakteristiska hållfasthetsvärden men ökar knappt de karakteristiska lastvärdena medan Eurokoderna knappt reducerar hållfasthetsvärdena utan ökar lastvärdena mer än BBK 04. Används Eurokodernas rekommenderade värden blir dess armeringsmängd betydligt högre än vid dimensionering enligt BBK 04. Dock har samtliga medlemsländer i Europeiska Unionen tagit fram ett eget nationellt annex med egenvalda värden och faktorer, och med Sveriges värden får regelverken nästintill samma armeringsmängder. Dimensionering enligt Eurokod 2 med Sveriges värden ger lägre armeringsmängder i både balkar och pelare än vad BBK 04 ger, vilket är ekonomiskt fördelaktigt.
Karlsson, Anni, and Jennie Svärd. "Dimensionering av lastbärande stomme för framtida påbyggnad." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-45736.
Full textLindblom, Mikael, and Lucas Toll. "Dimensionering av infästningsplåtar i prefabricerade betongelement - viktiga parametrar." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-44449.
Full textWallin, Johan, and Bäcklund Filip Karlsson. "Materialoptimering för kulvertelement i betong." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65837.
Full textPettersson, Patrik. "Dimensionering och studie av stommar i limträ, stål och betong med avseende på kostnad och miljöpåverkan." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-92511.
Full textThis thesis includes a project whose purpose is to design alternative frameworks in steel andconcrete of an existing barn in glulam. These options were then compared in terms of costand environmental impact.The author argues that today there are several different options for frameworks, in terms ofboth materials and design, and it can make the choice of framework difficult. The work is notintended to determine which material is best, but rather to present the differences betweenthe materials. Then it's up to the person who reads to determine if one finds anenvironmental efficient material best or if you favor less cost.In the report's results section the results from all the alternative designs are presented, whichhas later been used to compare the frames. Environmental impacts were established using alifecycle assessment, where Tyréns AB has developed a set of rules for structures. The projectwas delimited to only generate environmental impact outcomes in terms of carbon dioxideemissions from fossil fuel use and the cost to the material without regard to the attachments.The result for the price was done by contacting different suppliers of each material.The results from the project indicate that framework with tension rods are more favorableamong the options put forward in this report. Of the alternatives, it was found that theconcrete and glulam were fairly similar with regard to material cost and that glulam was mostsuitable in terms of environmental impact during production.
Karlsson, Evelina. "Dimensionering av höga balkar av armerad betong : En jämförelse mellan EK2, BBK, laboratorieförsök och ATENA 2D." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81429.
Full textKarlsson, Philip, and Josefin Winell. "Dimensionering av ett flervåningshus i KL-trä med hjälp av FEM-Design : En jämförelse mellan betong och KL-trä." Thesis, KTH, Byggteknik och design, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301270.
Full textFor various reasons, it has become more popular to build multi-storey houses in wood, which has led to the development of materials in wood. Cross laminated timber also called CLT is a consequence of this development in Sweden and just like other frame materials, computer programs are used to draw houses in CLT. The aim of this report is to get knowledge of CLT and investigate how the software FEM-Design can be used to design a multi-storey building in CLT. In addition, FEM-Design has also been used to calculate the amount of material necessary to make a climate declaration, for both materials concrete and wood. The result based on the climate declaration shows that the wooden building has a lower emission in the construction phase compared with the concrete building, but the National Board of Housing, Building and Planning's database that has been used in this report is somewhat conservative. The values in the National Board of Housing, Building and Planning's database, primarily in stages A1-A3, differ slightly compared with EPDs (environmental product declaration) from different companies in the concrete industry. The CLT building is lighter than the concrete building, which means that the concrete foundations for the wooden building may be made smaller to handle the loads compared to concrete. On the other hand, the wooden building gets a slightly thicker floor to cope with the sound, fire and use requirements, which then results in a lower room height if the total height of the building still is the same. In order to achieve the same room height of 2.6 m in the concrete building, it would be required that the wooden building be built 1.2 m higher, which leads to greater material consumption.
Svanberg, Andreas, and Tim Storbjörk. "Dimensionering av grundkonstruktioner : En jämförelse av bäddmodulers inverkan på moment." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-86025.
Full textThe Winkler-model is often applied when calculating foundation slabs. The model intend to replace the subgrade with a bedding of vertical springs that corresponds with the stiffness of the soil. The integration of the foundation slab is often neglected in todays approved methods of implementing subgrade modulus. The consequence of this overlook may cause unforeseen tensile stress in the foundation. The purpose of this study is to support engineers in their decision of choosing a model and provide proper conditions designing slabs taking into account for interplay of the whole foundation structure. The aim is to demonstrate how the interplay in the construction and the application of the subgrade modulus affects parts of the foundation regarding bending moment. Three different methods of calculating subgrade modulus and two ways of application have been studied with purpose to illustrate how bending moment appear in the structure. Four sections have been selected to represent the structural behavior to analyze six model cases in the FEM-Design program. The result indicates the choosing of subgrade modulus affect maximum value of bending moment although the appearance of the momentum curve are not affected. Results also show that zones of tensile stress occur at the top of the foundation as an effect of integration effects of the whole structure.
Osman, Josef. "Dimensionering av plattbärlag enligt gällande föreskrifter : med hjälp av FEM-Design." Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81419.
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