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Seismic response of arch dams considering infinite radiation damping and joint opening effects |
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| Authors: | |
| Institution: | Department of Hydraulic Engineering ,Tsinghua University, Beijing 100084, China |
| Abstract: | Effects of two important factors on earthquake response of high arch dams are considered and combined into one program. These factors are: effects of radiation damping of the infinite canyon and local non-linearity of the contraction joint opening between the dam monoliths. For modeling of rock canyon, the discrete parameters are obtained based on a curve fitting, thus allowing the nonlinear dam system to be solved in the time domain. The earthquake uniform free-field input at the dam-canyon interface is used. An engineering example is given to demonstrate the significant effects of the radiation damping on the structure response. |
| Keywords: | arch dams dam-canyon interaction radiation damping joint opening local nonlinearity |
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