Foundation Flexibility on Seismic Behavior of Concrete Dam with interaction dam-reservoir-Foundation

Various parameters influence the behavior of the Dam during an earthquake. During an earthquake, due to the low shear force between the bottom of the reservoir and the fluid is not directly affected by ground movement due to the dam at the reservoir hydrodynamic pressure waves are created. In this paper the dynamic analysis of Dam foundations and taking into account the effects interaction Dam and reservoir are provided. The analysis is performed using ANSYS software. Pine Flat Dam was selected as a case study. Results of analyses showed an interaction of Dam and reservoir due to decrease frequency.