Essays about: "Valvdamm"

Found 5 essays containing the word Valvdamm.

  1. 1. Numerical study of the effect of thermal ice loads on concrete dams

    University essay from KTH/Betongbyggnad

    Author : Imal Zuwak; Wasseem Kordoghly; [2020]
    Keywords : Arch dam; Buttress dam; Concrete; Finite element analysis; Ice load; Valvdamm; Lamelldamm; Betong; Finit elementanalys; Islast;

    Abstract : It is essential to understand the mechanics of ice load and how it affects concrete dams located in a cold climate, such as Sweden, where the temperature becomes sufficiently cold to freeze the surface of the reservoir. The purpose of this thesis is to study ice load distribution along concrete dams, and its response during the application of an ice load. READ MORE

  3. 2. Thermal cracking of a concrete arch dam due to seasonal temperature variations

    University essay from KTH/Betongbyggnad

    Author : Jonas Enzell; Markus Tollsten; [2017]
    Keywords : Arch dam; Concrete; Finite element analysis; Cracking; Progressive failure analysis; Valvdamm; Betong; Finit elementanalys; Sprickor; Progressiv brottanalys;

    Abstract : Concrete dams located in northern regions are exposed to large seasonal temperature variations. These seasonal temperature variations have resulted in cracking in thin concrete dams. Continuous monitoring and evaluation of existing dams are important to increase the knowledge about massive concrete structures and to ensure dam safety. READ MORE

  4. 3. Finite element analysis of cracking of concrete arch dams due to seasonal temperature variation

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Fredrik Pettersson; Fredrik Hjalmarsson; [2017]
    Keywords : arch dam; hydro power; finite element method; abaqus; temperature variations; concrete; deformation; crack propagation; Technology and Engineering;

    Abstract : Flera dammkonstruktioner i Norden utsätts för stora temperaturvariationer mellan sommar och vinter. I norra Sverige kan dammar vara utsatta för temperaturvariationer på upp emot 60–70 °C. Detta resulterar ofta i sprickbildning i betongen vilket medför utmaningar vid både utformning av nya dammar och underhåll av befintliga. READ MORE

  5. 4. Verification of the response of a concrete arch dam subjected to seasonal temperature variations

    University essay from KTH/Betongbyggnad

    Author : Oskar Andersson; Max Seppälä; [2015]
    Keywords : Concrete arch dams; thermal effects; ice load; condition monitoring; finite element analysis; Betongvalvdammar; termiska effekter; tillståndsövervakning; islast; finita element analys;

    Abstract : Many dams existing today were constructed around fifty years ago. Condition monitoring is essential for maintaining high safety and determining the current level of safety and stability for these dams. There is a need for new monitoring techniques and finite element coupled monitoring could be one of these techniques. READ MORE

  6. 5. Influence of Fluid Structure Interaction on a Concrete Dam during Seismic Excitation : -Parametric analyses of an Arch Dam-Reservoir-Foundation system

    University essay from KTH/Betongbyggnad

    Author : Rikard Hellgren; [2014]
    Keywords : seismic; fluid-structure interaction; arch dam; concrete; finite element analysis; jordbävning; fluid-struktur interaction; valvdamm; betong; finit element analys;

    Abstract : The aim of this study is to investigate how Fluid-Structure interaction is included in numerical earthquake analyses of dams. The base for this project is theme A from the 12th international benchmark workshop on numerical analysis of dams, which was held in October 2013. READ MORE