| 金佛山沥青混凝土心墙堆石坝地震反应三维有限元分析 |
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| 引用本文： | 张慧萍,马伟. 金佛山沥青混凝土心墙堆石坝地震反应三维有限元分析[J]. 水电能源科学, 2013, 31(11): 74-77,190 |
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| 作者姓名： | 张慧萍 马伟 |
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| 作者单位： | 重庆交通大学 水利水运工程教育部重点实验室， 重庆 400074;重庆交通大学 水利水运工程教育部重点实验室， 重庆 400074 |
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| 基金项目： | 重庆市科技攻关基金资助项目（CSTC2011GGA30001） |
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| 摘 要： | 针对金佛山沥青混凝土心墙堆石坝的特点，采用三维非线性动力有限元法进行了地震动力反应分析，重点研究了坝体在地震荷载作用下的加速度、动应力、地震永久变形的变化规律和分布。结果表明，加速度在坝顶附近达到最大值，存在明显的鞭梢效应；动应力在坝体分布较均匀；坝体永久变形不大。可见大坝整体抗震性能较好，满足给定地震作用下的抗震安全性要求。
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| 关 键 词： | 金佛山沥青混凝土心墙堆石坝； 地震反应分析； 加速度； 动应力； 永久变形 |
Three-dimensional Finite Element Analysis of Seismic Response for Jinfoshan Asphalt Concrete Core Rockfill Dam |
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| ZHANG Huiping and MA Wei. Three-dimensional Finite Element Analysis of Seismic Response for Jinfoshan Asphalt Concrete Core Rockfill Dam[J]. International Journal Hydroelectric Energy, 2013, 31(11): 74-77,190 |
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| Authors: | ZHANG Huiping and MA Wei |
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| Affiliation: | Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China;Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China |
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| Abstract: | Aiming at the characteristics of Jinfoshan asphalt concrete core rockfill dam, three-dimensional nonlinear dynamic finite element method is used to analyze seismic dynamic response. The response of acceleration and dynamic stress and the regular pattern and distribution of permanent deformation are studied under seismic loads. The results show that the crest has larger acceleration response and appears obvious whiplash effect; the dynamic stress of dam body is uniform distribution and its permanent deformation is little. The overall seismic performance of the dam is good enough to meet the seismic stability requirements under the given earthquake. |
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| Keywords: | Jinfoshan asphalt concrete core rockfill dam seismic response analysis acceleration dynamic stress permanent deformation |
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