| 考虑横缝影响的拱坝动力分析 |
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| 引用本文： | 林皋,胡志强,陈健云.考虑横缝影响的拱坝动力分析[J].地震工程与工程振动,2004,24(6):45-52,72. |
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| 作者姓名： | 林皋 胡志强 陈健云 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024;大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024;大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金项目(50139010) |
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| 摘 要： | 本文在求解三维弹性静力摩擦接触问题的有效方法-非光滑方程组方法的基础上，通过能够近似满足动量、动能守恒条件的速度、加速度的修正方法，将该方法推广到动力接触问题的求解中，以考虑地震时拱坝中横缝的开合、错动对坝体动力响应的影响。同时文中采用由多次透射公式表示的人工边界条件来考虑坝-基动力相互作用的影响。数值算例中分析了横缝的数目和布置位置对拱坝动力响应的影响。
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| 关 键 词： | 拱坝 横缝 非光滑方程组方法 动力接触 |
| 文章编号： | 1000-1301(2004)06-0045-08 |
Dynamic analysis of an arch dam considering the effects of contraction joints |
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| Lin Gao,Hu Zhiqiang,Chen Jianyunn Univesity of Technology,Dalian ,China.Dynamic analysis of an arch dam considering the effects of contraction joints[J].Earthquake Engineering and Engineering Vibration,2004,24(6):45-52,72. |
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| Authors: | Lin Gao Hu Zhiqiang Chen Jianyunn Univesity of Technology Dalian China |
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| Institution: | Lin Gao,Hu Zhiqiang,Chen Jianyunn Univesity of Technology,Dalian 116024,China) |
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| Abstract: | In this paper, the dynamic contact problem resulted from sticking, separate and sliding occurred in the contraction joints is simulated by the non-smooth equation method combined with the consideration of the balance of momentum and kinetic energy at the current of impact. The artificial boundary condition expressed by multi-transmitting formula is adopted to simulate the propagation of the scatter wave to the infinite. Implicit-explicit integration scheme is used for the equilibrium equation of the arch dam-foundation system. The effects of the number and position of the contraction joints on the dynamic response of arch dam are studied. |
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| Keywords: | arch dam contraction joint non-smooth nonlinear equations method dynamic contact |
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