| 坝体地基库水体系的动力有限元分析及其应用 |
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| 引用本文： | 龚亚琦,陈琴,崔建华,谢小玲. 坝体地基库水体系的动力有限元分析及其应用[J]. 水电能源科学, 2012, 30(1): 40-44 |
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| 作者姓名： | 龚亚琦 陈琴 崔建华 谢小玲 |
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| 作者单位： | 长江科学院材料与结构研究所,湖北武汉,430010 |
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| 基金项目： | 长江科学院博士启动基金资助项目(CKSQ2010082) |
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| 摘 要： | 基于动力有限元理论建立了坝体地基库水体系的数值模型，分析了库水和地基联合作用对结构动力响应的影响，探讨了计算过程中涉及的动力响应输入和地震波处理等相关问题，并以某水电站岸坡坝段为例，比较了坝体地基库水模型与传统附加质量无质量地基模型的地震响应结果。结果表明，与传统附加质量无质量地基模型相比，坝体地基库水模型的位移和应力均有较大的降低，可为设计安全储备提供参考。
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| 关 键 词： | 坝体地基库水体系； 动力有限元分析 流固耦合 无限地基 地震动输入 |
Dynamic FEM Analysis of Dam-boundary-reservoir System and Its Application |
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| GONG Yaqi,CHEN Qin,CUI Jianhua and XIE Xiaoling. Dynamic FEM Analysis of Dam-boundary-reservoir System and Its Application[J]. International Journal Hydroelectric Energy, 2012, 30(1): 40-44 |
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| Authors: | GONG Yaqi CHEN Qin CUI Jianhua XIE Xiaoling |
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| Affiliation: | (Department of Material and Structure,Changjiang River Scientific Research Institute,Wuhan 430010,China) |
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| Abstract: | Based on the theory of dynamic finite element method, numerical model of dam-foundation-reservoir system is presented. The influence of joint action between reservoir and foundation on dynamic response of structure is analyzed. And the techniques such as dynamic response input and seismic wave treatment in calculation process are discussed. Taking bank slope dam section of hydropower station for an example, the result of seismic response obtained with dam-foundation-reservoir model is compared with that of additional mass-massless foundation model. The results show that the dynamic displacement and stress obviously decrease, which can provide reference for design of hydro structure safety. |
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| Keywords: | dam-boundary-reservoir system dynamic finite element analysis fluid-solid coupling infinite foundation seismic input |
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