تحليل لرزه اي غيرخطي سدهاي بتني وزني با در نظر گرفتن اندركنش سد - مخزن - فونداسيون

Nonlinear Seismic Analysis of Concrete Gravity Dams Including Dam-Reservoir-Foundation Interaction

In the recent years, numerous researches have been conducted in order to determine dams behavior against the seismic loads. New methods and various models were proposed to investigate the dam safety issue. In this paper, a comprehensive approach was used to study the effect of different parameters in analysis of concrete gravity dams. Using the finite element method, staggered method and smeared crack approach, some different seismic analyses were done. Effective parameters in the models are physical properties of concrete like module of elasticity, tensile strength and specific energy. Results show that number of crack profiles in massless foundation increases. On the other hand mass of foundation increases stability of dam-reservoir-foundation systems under dynamic loads