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Thermal Analysis of Concrete arch Dams Using Real Reservoir Data and Comparing the Results with Stucky-derron Method

Sotoudeh Foumani, Payam | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46513 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Ghaemian, Mohsen
  7. Abstract:
  8. Thermal analysis of concrete arch dams is always an important issue in designig these enormous concrete structures. The reason this issue mainly concerns arch dams and not gravity dams is because of little thickness of arch dams which makes them prone to cracking due to thermal loading. To solve any thermal problem we need boundary conditions. In arch dam case, these boundaries are the temperature of the upstream and downstream face of the dam which, depending on circumstances, can be in touch with water or air. Estimating air temperature is a fairly easy task when you have monthly mean temperatures. The challenging part is defining water temperature in any depth of the reservoir whenever we need it.
    The first part of this study is dedicated to study a formulation developed by Bofang. Bofang uses some environmental parameters and presents a formulation which can estimate the temperature of the reservoir in any depth at any time of the year. We tried to use some real data from some real dams in iran to check it's accuracy and improve it.
    The second part is dedicated to thermal analysis of arch dams. we performed a thermal analysis using finite element method and we checked the results with real data. To finalise our work,we checked the results of the formultaion developed by Stucky and Derron. Based on some environmental data, these two French scientists presented a formulation which can estimate the thermal gradient within dam thickness. We will try and check it's accuracy by comparing it's results with real data obtained from thermometers of some dams in Iran
  9. Keywords:
  10. Arc Dam ; Thermal Stress ; Thermal Analysis ; Finite Element Model ; Finite Element Analysis ; Bofang Method ; Stucky-Derron Method

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