| Morison方程中动水阻力项对桥梁桩柱地震反应的影响 |
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| 引用本文： | 袁迎春,赖伟,王君杰,胡世德.Morison方程中动水阻力项对桥梁桩柱地震反应的影响[J].世界地震工程,2005,21(4):88-94. |
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| 作者姓名： | 袁迎春 赖伟 王君杰 胡世德 |
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| 作者单位： | 1. 哈尔滨市政工程设计院,黑龙江,哈尔滨,150001
2. 同济大学土木工程防灾国家重点实验室,上海,200092 |
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| 摘 要： | 深水桥梁地震反应计算时，当采用Morison公式考虑水的作用时，增加了一个附加惯性项和一个附加阻尼项，其中附加阻尼项是非线性的。由于非线性附加阻尼项的存在，给采用反应谱方法求解桥梁的地震反应带来不便。讨论了非线性阻尼项对一般桥梁桩、墩结构地震反应的贡献，得到的结论是阻尼项的贡献很小，可以忽略。从而水中桥梁地震反应的计算就得到了很大的简化。
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| 关 键 词： | Morison方程 动水阻尼 地震反应 |
| 文章编号： | 1007-6069(2005)04-0088-07 |
| 收稿时间： | 2005-05-15 |
| 修稿时间： | 2005-07-16 |
The effects of hydrodynamic damping on seismic response of bridge piles |
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| YUAN Ying-chun,LAI Wei,WANG Jun-jie,HU Shi-de.The effects of hydrodynamic damping on seismic response of bridge piles[J].World Information On Earthquake Engineering,2005,21(4):88-94. |
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| Authors: | YUAN Ying-chun LAI Wei WANG Jun-jie HU Shi-de |
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| Institution: | 1. Harbin Municipal Engineering Design Institute, Harbin 150001 ,China; 2. The Key Laboratory of Disaster Reduction for Civil Engineering, Shanghai 200092, China |
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| Abstract: | The hydrodynamic damping formulation in Morisong Equation makes it difficult to solve the seismic response of bridges in deep water. In this paper the effects of hydrodynamic damping on the seismic response of bridge piles are investigated. The numerical results show that the hydrodynamic damping provides slight contributions for the seismic response of the bridge piles, and then may be ignored for practical application. |
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| Keywords: | Morison's equation hydrodynamic damping seismic response |
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