| 地基基础-坝体体系动力特性及地震反应分析的有限元与无限元耦合法 |
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| 引用本文： | 燕柳斌,李国华,夏小舟.地基基础-坝体体系动力特性及地震反应分析的有限元与无限元耦合法[J].广西大学学报(自然科学版),2003,28(3):249-253. |
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| 作者姓名： | 燕柳斌 李国华 夏小舟 |
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| 作者单位： | 广西大学,土木建筑工程学院,广西,南宁,530004 |
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| 基金项目： | 教育部骨干教师资助项目 |
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| 摘 要： | 编制了有限元及有限元—无限元耦合计算程序，利用其分析了广西源口拱坝在有限域及无限域地基下的动力特性与动力响应，并与常规刚性地基下坝体的动力特性、动力响应进行比较，得出结论：1．弹性地基下拱坝自振频率减小、动位移最大值增大；2．耦合分析法具有较高的精度和显著的经济性，是工程应用中值得推广的一种分析方法。
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| 关 键 词： | 地基基础—坝体动力相互作用 动力特性 有限元 无限元 耦合法 |
| 文章编号： | 1001-7445(2003)03-0249-05 |
| 修稿时间： | 2003年3月20日 |
Finite and infinite element coupling method for dynamic properties and seismic analysis of foundation-dam system |
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| YAN Liu bin,LI Guo hua,XIA Xiao zhou.Finite and infinite element coupling method for dynamic properties and seismic analysis of foundation-dam system[J].Journal of Guangxi University(Natural Science Edition),2003,28(3):249-253. |
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| Authors: | YAN Liu bin LI Guo hua XIA Xiao zhou |
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| Abstract: | In this paper, programs of finite element and finite infinite element coupling method are worked out, and they are applied for analyzing dynamic properties and earthquake response of foundation dam system, located in Yuankou, Guangxi, in the condition of finite and infinite space. Compared with the result of dam in rigid foundation, the conclusions are got: 1.the frequencies of dam in elastic foundation is little than that of dam in rigid foundation, meanwhile the maximum displacement of dam is larger;2.this analytical method has high accuracy and significant economy. Also it is a method worth popularizing in engineering. |
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| Keywords: | dynamic interaction of foundation dam system dynamic properties finite element infinite element coupling analysis method |
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