Search results for "egg"
showing 10 items of 881 documents
Modelling heat diffusion in concrete structures during a tunnel fire, to investigate structural safety
2019
Master's Thesis Civil and Constructional Engineering BYG508 - University of Agder 2019 Thisismymaster’s thesis for my master’s degree in civil engineering.In this study,the heat diffusion in concrete structures during a tunnel fire is investigated. The available literature on the heat diffusion of the ISO 834, EUREKA 60, 90 and 120, HC and RWS fire curve have been investigated and compared. The fire curves are also modelled in the software ANSYS, where different approaches have been simulated,and temperature profiles have been established. The different analyseshavebeen developed and performed from a literature study, watching tutorials online and through meetings with experts. The importan…
Dimensjonering og livsløpsvurdering av ulike broløsninger i betong for å finne et bærekraftig alternativ
2019
Masteroppgave bygg BYG508 - Universitetet i Agder 2019 In the preliminary project it was stated that Strauman 3 had been deteriorated so significantly that replacement isnecessary. The damage havebeen reported as critical for abouttwentyyears.Theplatebridge is located in Vesterålen and spans 5.9 meters with two lanes. The accumulated damage is a result ofaninsufficient concrete cover to withstand theexposure conditions. This project concerns the designof different bridge proposals that may begood solutionsfor the replacement of Strauman 3. In this process, several proposals are sketched. Among these,both traditional and innovative solutionsare presented. Once all the suggestions have been o…
Utmatting som følge av OPB i fortøyningsliner av kjetting : FEM analyse av topp-kjedet utsatt for OPB i henhold til retningslinjer av Bureau Veritas …
2019
Masteroppgave bygg BYG508 - Universitetet i Agder 2019 Offshore structures are exposed to harshenvironments where there are many kinds of loads acting on the structure. These loads lead to complicated conditions with many possible load combinations. In addition, they are changing in both time and spacesince the intensity and orientation varies with time.Mooring lines in floating structures consists of mooring system where chains are widely used in what is called catenary and semi taut mooring. The mooring line is a key part in the station-keeping system thatforms a connection between the structure on the surfaceto the seabed.Here it will keep floating structures stable with the least possib…
Fiberarmert betong i bærende konstruksjoner : Beregningsmodeller og eksperimentelle undersøkelser
2021
Master's thesis in Civil and structural engineering (BYG508) This report is a master’s thesis with the main topic of fiber reinforced concrete. This area ofresearch is relevant due to demands of a decrease in the emissions of greenhouse gases, demandsfor rational execution, a need for an improvement of HSE conditions and shortage of labor. Fiberreinforcement used as a substitute or supplement to regular mild steel in concrete has long been limited to just a few areas of application. Steel fiber is the type of fiber that has been most widely used in cast-on-site concrete structures like slab-on-ground or in sprayed concrete. In this master’sthesis the use of basalt and steel fiber in load-ca…
Komparativ analyse av to bæresystemerfor leilighetsbygg i Kanalbyen, Kristiansand : Prosjektering av plasstøpt betong- og massivtrekonstruksjon i lys…
2019
Masteroppgave bygg BYG508 - Universitetet i Agder 2019 Reinforced concrete is amongst the most used structural materials in the construction industry, due to its strength, applicability and formability. At the same time the environmental impacts caused by the use of concrete are significant. On the other hand, the use of cross-laminated timber (CLT) has increased as the focus on environmental gas emissions also increases. The aim of this Master thesis has therefore been to determine how the design process of a structural load bearing system can minimize the environmental footprint. To answer this, a thorough analysis of a 4-story, and a 6-story apartment building in “Kanalbyen” has been car…
Experimental and finite element analysis of the shear behaviour of UHPC beams
2019
Master's Thesis Civil and Constructional Engineering BYG508 - University of Agder 2019 The flexural behavior of reinforced concrete beams isobviously defined and can be managed with reasonableaccuracy.However, a solution has not been obtained for the shear capacity of beams, especially those without shear reinforcement, though numerous models have been established using different approaches. The reason is due to the complexity of shear behavior of reinforced concretebeams,where the load transfer through various componentsof concrete. In addition to this, there is also the effect of reinforcement and cross-section of the memberswhichis linked with dowel action and geometric parameters.All th…
Network arch bridge : Optimization of the arch applying simple loads
2019
Master's Thesis Civil and Constructional Engineering BYG508 - University of Agder 2019 This master thesis gives insight in structural behavior of network arch bridges. When designed with circular arches the bending moments tend to rise near the bridge ends. As suggestions for improving this problemtwo alternative arch geometriesare investigated; arch with elliptical shape anda three-center arch shape. The arch geometries are modelledwith different radius ratios.In addition,different variables are changed on the models which includes; arch rise, hanger inclination, number of hangers and the transition point between the curvatures.Two-dimensional numericalcalculations are doneusing structural…
Kontinuerlige betongelementbruer : Virkningen av byggetilstand på konstruktiv oppførsel og dimensjonerende krefter
2019
Masteroppgave bygg BYG508 - Universitetet i Agder 2019 The aim of this thesis is toexplore whateffect the construction state of a continuous prefabricated beam will have on the structural behaviour and design forces. This has been done by analysing Kvellaren bru located in Sandnes,when prefabricated beamsare used. The beams referencedin this thesis is based on preapproved prefabricated beams presented in the new manual V426. The beams presented are intended for simply supported beams, whereas the effect of making them continues hasbeenexamined. The analysis concludes that a continuous beam would be preferable to ensure an economicalstructure. The deformation of a continuousbeam when subject…
RIB prosjektering ved implementering av parametrisk verktøy : Prosjektering av reviderbare brudekker, med en arbeidsflyt mellom Grasshopper, Revit og…
2021
Master's thesis in Civil and structural engineering (BYG508) The process of development for computer programs, is modified an updated continuously. Just in the last twenty years, both modelling-and calculation tools have developed to be able to handle and produce 3D models. Today, it is also possible to use parametric design for these work assignments. Parametric design produce algorithms to define the work tasks, that are to be done in the modelling-and calculation programs. This master thesis is therefore investigating how parametric modeling can generate a more efficient revision process, of the geometric-and static model, for design of bridge decks. To accomplish this, a study of litera…
Karakterisering og rensing av tunnelvann
2019
Masteroppgave bygg BYG508 - Universitetet i Agder 2019 This Project is a master thesis. The report is an addition to the preliminary project, which was made in the autumn of 2018. The research question of this project is: "How to solve the challenges related to polluted tunnel water?”During the project period a wide range of different methods dealingwith particle containing tunnel water has been studied. Analyses of coagulant chitosan have also been carried out. Sedimentation characteristics with a varied concentration of chitosan were analysed involvingsedimentation rate, suspended solids (SS), turbidity and particle analyses. A qualitative survey was also conducted to four respondents. Al…