| 设有纵缝的重力坝地震反应分析方法 |
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| 引用本文： | 楼梦麟,王东静. 设有纵缝的重力坝地震反应分析方法[J]. 水利学报, 1997, 0(3) |
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| 作者姓名： | 楼梦麟 王东静 |
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| 作者单位： | 同济大学结构理论研究所 |
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| 摘 要： | 本文介绍模拟重力坝纵缝的二维缝隙单元，应用非直接对接的自由子结构模态综合技术，建立设有纵缝的重力坝地震反应非线性动力分析方法，以提高局部非线性动力问题的计算效率
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| 关 键 词： | 重力坝，纵缝，地震反应，自由子结构 |
The seismic response analysis method for gravity dams with contranction joints |
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| Lou Mengling Wang Dongjing. The seismic response analysis method for gravity dams with contranction joints[J]. Journal of Hydraulic Engineering, 1997, 0(3) |
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| Authors: | Lou Mengling Wang Dongjing |
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| Affiliation: | Tongji University |
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| Abstract: | A nonlinear joint elements is developed to simulate the opening and closing of contraction joints The element has a nonlinear force-displacement relationship which must be accounted for in the solution for dynamic response of gravity dam with contraction joints A special component modal synthesis approach is suggested to apply in the numerical procedure for dynamic analysis of nonlinear structural systems The solution time can be greatly reduced by using this approach The result of a numerical example shows that the opening and closing of the contraction joints may amplify the seismic response of gravity dam. |
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| Keywords: | gravity dam contraction joint seismic response free-interface substructure |
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