| 波浪力对深水桥墩结构在地震和冰荷载作用下的响应影响分析 |
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| 引用本文： | 贾玲玲.波浪力对深水桥墩结构在地震和冰荷载作用下的响应影响分析[J].震灾防御技术,2010,5(2):263-269. |
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| 作者姓名： | 贾玲玲 |
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| 作者单位： | 河南工业大学土木建筑学院,郑州,450052 |
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| 摘 要： | 考虑到波浪力对深水桥墩地震响应和冰振响应的影响,本文基于非线性Morision方程,同时考虑附加质量效应和流固耦合效应,通过建立深水桥墩结构有限元分析模型及动力平衡方程,对深水桥墩结构进行了波浪、冰荷载、地震3种环境激励荷载单独作用下,以及不同组合形式共同作用下的数值分析;进而对计算结果进行了比较,探讨了动水压力对深水桥墩结构响应的影响程度,可为今后深水桥墩抗震以及抗冰设计提供一定的借鉴和参考。
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| 关 键 词： | 波浪力 地震作用 冰荷载 深水桥墩 结构响应 |
| 收稿时间： | 3/9/2010 12:00:00 AM |
Seismic and Ice Response Analysis of Bridge Pier in Deep Water with the Wave Effect |
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| Jia Lingling.Seismic and Ice Response Analysis of Bridge Pier in Deep Water with the Wave Effect[J].Technology for Earthquake Disaster Prevention,2010,5(2):263-269. |
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| Authors: | Jia Lingling |
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| Institution: | School of Civil Construction Engineering, Henan University of Technology, Zhengzhou 450052, China |
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| Abstract: | In order to study the dynamic of piers under seismic,ice force and wave action,based on fluid mechanics principle,A FEM model and dynamic equation was established with nonlinear Morison equation.Considering both the effect of added mass of water and the coupling effect of fluid and structure,the Newmark-β method is applied to solve the coupling equation.Through numeric analysis,the pier response is analyzed and compared deeply with different work conditions.The conclusions indicate that the analytical method propoed in this paper can provide references for the progress of ice mechanics,and is feasible to study the response of deepwater piers. |
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| Keywords: | Wave force Seismic action Ice loads Deep-water piers Response of structure |
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