| 水下桥墩结构的振动分析 |
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| 引用本文： | 杨吉新,雷凡,李昆. 水下桥墩结构的振动分析[J]. 世界桥梁, 2009, 0(3) |
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| 作者姓名： | 杨吉新 雷凡 李昆 |
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| 作者单位： | 武汉理工大学交通学院,湖北,武汉430063;鄂东长江公路大桥有限公司,湖北,黄石,435000 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为研究水流对桥墩结构振动特性的影响,分别建立了水与实体桥墩和空心桥墩的流固耦合模型,计算了各自的振动频率,并与理论公式的计算结果比较,两者基本吻合.分析后得出结论:考虑内部水流作用时,空心桥墩的自振频率随壁厚的减小呈现先缓慢增大,后迅速减小的趋势;水流对高墩和薄壁墩自振频率的影响更大.
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| 关 键 词： | 桥墩 实体结构 空心结构 流固耦合 振动频率 |
Analysis of Vibration of Underwater Bridge Pier Structure |
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| YANG Ji-xin,LEI Fan,LI Kun. Analysis of Vibration of Underwater Bridge Pier Structure[J]. World Bridges, 2009, 0(3) |
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| Authors: | YANG Ji-xin LEI Fan LI Kun |
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| Affiliation: | YANG Ji-xin1,LEI Fan1,LI Kun2(1.School of Transportation,Wuhan University of Technology,Wuhan 430063,China,2.Edong Changjiang River Highway Bridge Co.,Ltd.,Huangshi 435000,China) |
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| Abstract: | To study the influence of water current on the vibration characteristics of underwater bridge pier structure,the fluid-solid interaction models for the water current and solid pier and hollow pier were respectively built and the vibration frequency of each kind of the pier was calculated.The results of the calculation were then compared to those calculated by the theoretic formulas and it was found that the results were basically identical.The conclusions drawn from the analysis are that when the action of ... |
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| Keywords: | bridge pier solid structure hollow structure fluid-solid interaction vibration frequency |
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