Nonlinear seismic response analysis of arch dam-foundation systems- part II opening and closing contact joints |
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| Authors: | Xiuli Du Jin Tu |
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| Institution: | (1) The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing, China;(2) China Institute of Water Resources and Hydropower Research, Beijing, China |
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| Abstract: | A time-domain method for the analysis of arch dam-foundation rock dynamic interaction during earthquake was proposed, and
the dynamic relaxation technique was adopted to obtain the initial static response for dynamic analysis by Du et al. (2005).
The paper has been contributed to Bulletin of earthquake engineering]. In this paper, a nonlinear explicit method in time
domain considering the opening and closing effect of contact joints on arch dam during earthquake is further proposed by introducing
the dynamic contact force model into the method. The simulation accuracy of dynamic contact force model is verified by comparing
its calculation result and test result of scale model on shaking table. Finally, the influence of joints on the seismic response
of Xiaowan arch dam is studied by the proposed method and some conclusions are given. |
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| Keywords: | Arch dam Foundation Contact joint Dynamic interaction Nonlinear seismic response |
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