| 桥梁结构动力特性的有限元分析与试验研究 |
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| 引用本文： | 王浩,乔建东.桥梁结构动力特性的有限元分析与试验研究[J].公路交通科技,2004,21(6):78-80. |
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| 作者姓名： | 王浩 乔建东 |
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| 作者单位： | 1. 中南大学土木建筑学院,湖南,长沙,410075;华东勘测设计研究院,浙江,杭州,310014
2. 中南大学土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 固有频率、振型等是反映结构动力特性的模态参数,是评价桥梁动力性能的重要依据。本文以西基桥为例,基于ANSYS平台建立了该连续刚构桥梁的有限元计算模型,并对其进行模态分析,得出了相关模态参数。在此基础上结合自由振动和环境随机振动测试结果,对该桥的自振特性进行了分析。结论可为同类型桥梁的动力特性分析提供参考。
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| 关 键 词： | 桥梁工程 连续刚构 动力特性 模态分析 自由振动 |
| 文章编号： | 1002-0268(2004)06-0078-03 |
| 修稿时间： | 2003年5月8日 |
Finite Element Analysis and Experimental Study on Dynamic Characteristics of Bridge Structures |
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| WANG Hao.Finite Element Analysis and Experimental Study on Dynamic Characteristics of Bridge Structures[J].Journal of Highway and Transportation Research and Development,2004,21(6):78-80. |
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| Authors: | WANG Hao |
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| Abstract: | Natural frequencies and mode shapes, the invariable modal parameters reflecting the whole properties of a structure, can be used to evaluate the whole properties of the bridge. In this paper, a 3-dimension finite element model for a continuous rigid frame bridge is established in detail and model analysis is carried out with ANSYS. The dynamic characteristics of the bridge are calculated by use of subspace iteration method. Compared with free vibration and ambient vibration test data, the validity of the calculating method is validated and satisfactory results are obtained. |
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| Keywords: | Bridge structure Continuous rigid frame Dynamic characteristics Modal analysis Free vibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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