Reliability Analysis of Concrete Gravity Dam by Considering the Uncertainties of dam body’s Parameters Based on Nonlinear Modeling

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Ahangary, Masoud | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49112 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Ghaemian, Mohsen
Abstract:
Safety of concrete gravity dams under dynamic loading that cause from earthquakes is an important aspect of research.as we know, dam structure response is related to type of loading, properties of concrete and foundation material, so according to the uncertainties of these random variables, in this research we calculate the response (stresses) of structure for different value of random variables that have their own probability distribution type. Nonlinear plasticity damage model of dam is implemented in ABAQUS and for reliability analysis we use Latin Hypercube Sampling (LHS). Sensitivity results show that PGA of earthquake and Special Energy (Gf) of concrete in comparison with concrete density and Elasticity have most effect on seismic response. Also density has more sensitivity value than elasticity that it shows the importance of dam weight
Keywords:
Safety ; Probability Distribution Function ; Random Variables ; Uncertainty ; Sensitivity Analysis ; Concrete Gravity Dam ; Crack Modeling ; Nonlinear Modeling ; Latin Hypercube Sampling (LHS)

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