| 拱坝横缝有初始开度的数值模型和试验验证 |
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| 引用本文： | 刘新佳,徐艳杰,金峰. 拱坝横缝有初始开度的数值模型和试验验证[J]. 水利水电技术, 2004, 35(2): 27-30 |
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| 作者姓名： | 刘新佳 徐艳杰 金峰 |
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| 作者单位： | 清华大学,水利水电工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(50209004) |
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| 摘 要： | 针对横缝有初始开度的拱坝地震响应分析的需要，建立了一个有初始开度横缝的数值模型，并且采用模型拱坝常规振动试验和破坏振动试验的结果验证了该数值模型的合理性．分析计算的结果表明，拱坝横缝初始开度会改变坝体自振特性，并且可能改变坝体地震响应规律。
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| 关 键 词： | 拱坝 横缝 地震响应分析 数值模型 非线性 |
| 文章编号： | 1000-0860(2004)02-0027-04 |
| 修稿时间： | 2003-07-17 |
Numerical model of contraction joints with initial openings in arch dams and its verification with shaking table tests |
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| LIU Xin-jia,XU Yan-jie,JIN Feng. Numerical model of contraction joints with initial openings in arch dams and its verification with shaking table tests[J]. Water Resources and Hydropower Engineering, 2004, 35(2): 27-30 |
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| Authors: | LIU Xin-jia XU Yan-jie JIN Feng |
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| Abstract: | To meet the need of arch dam seismic analyses considering the nonlinearities of contraction joints with initial openings, a nonlinear joint numerical model with initial opening is developed and verified with the shaking table test data of an arch dam, including a conventional vibration test and a destructive vibration test. The rationality of the numerical model is proved by their good agreement,and the response analyses show that the initial openings of arch dam joints could change the self-oscillation characteristic and change the pattern of arch dam earthquake responses. |
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| Keywords: | arch dam contraction joints initial opening nonlinear shaking table test |
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