| 深水悬臂桥墩动力特性及地震响应分析 |
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| 引用本文： | 柏晓东,郭安薪,李惠. 深水悬臂桥墩动力特性及地震响应分析[J]. 防灾减灾工程学报, 2011, 31(5): 506-511 |
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| 作者姓名： | 柏晓东 郭安薪 李惠 |
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| 作者单位： | 哈尔滨工业大学土木工程学院,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金面上项目(50878071)资助 |
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| 摘 要： | 利用ADINA中的势流体单元对一已建成的深水高墩建模,桥梁上部结构对桥墩的影响以墩顶集中质量的形式体现,分别对不同水深条件下桥墩-水体系的动力特性和地震动响应进行了系统的求解；为了检验Morison方程在深水桥墩动力分析中的有效性,将基于忽略速度力项的Morison方程的计算结果与基于势流体的结果进行了比较.研究结果表...
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| 关 键 词： | 深水悬臂桥墩 势流体 Morison方程 动力特性 地震响应 |
Dynamic Characteristics and Seismic Responses of Cantilever Pier Immersed in Water |
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| BAI Xiao-dong,GUO An-xin,LI Hui. Dynamic Characteristics and Seismic Responses of Cantilever Pier Immersed in Water[J]. Journal of Disaster Prevention and Mitigation Engineering, 2011, 31(5): 506-511 |
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| Authors: | BAI Xiao-dong GUO An-xin LI Hui |
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| Affiliation: | BAI Xiao-dong,GUO An-xin,LI Hui(School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | Based on ADINA,a finite element model for an existing high bridge pier immersed in water is made with potential fluid based element.A concentrated mass is attached to the top of the structure to simply simulate the bridge deck.A systematic study is carried out on the dynamic characteristics and seismic responses for various water depths.A simultaneous work is also done for the model on the basis of the Morison equation neglecting the velocity part and the result is compared with the PB model.Some conclusion... |
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| Keywords: | cantilever pier surrounded by water potential based fluid Morison equation dynamic characteristics seismic response |
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