| 大跨径斜拉桥动力特性分析 |
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| 引用本文： | 俞先林,张瑗媛. 大跨径斜拉桥动力特性分析[J]. 市政技术, 2008, 26(5) |
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| 作者姓名： | 俞先林 张瑗媛 |
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| 作者单位： | 1. 东南大学,交通学院,南京,210096
2. 江苏省交通规划设计院,南京,210005 |
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| 摘 要： | 首先针对大跨径斜拉桥的结构特点,从主梁、主塔、斜拉索和边界条件等方面阐述了斜拉桥有限元动力分析的建模方法;然后以苏通大桥为例,用ANSYS有限元分析软件,对其成桥状态下的结构自振特性进行了分析.计算结果表明,该桥具有较好的抗震性能,但需要通过节段模型风洞试验检验其颤振稳定性.
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| 关 键 词： | 斜拉桥 动力特性 有限元 分析 |
Analysis on Dynamic Properties of Long Span Cable-stayed Bridge |
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| Yu Xianlin,Zhang Yuanyuan. Analysis on Dynamic Properties of Long Span Cable-stayed Bridge[J]. Municipal Engineering Technology, 2008, 26(5) |
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| Authors: | Yu Xianlin Zhang Yuanyuan |
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| Affiliation: | 1.Transportation College of Southeast University;Nanjing 210096;China;2.Jiangsu Provincial Communication Planning And Design Institute;Nanjing 210005;China |
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| Abstract: | Based on the structural characteristic of long span cable-stayed bridge,the method of building a finite element model for its dynamic property analysis was introduced from girder,tower,cable and boundary condition.Meantime,the ANSYS finite element analysis software was adopted to analysis the dynamic property of sutong bridge on its completed state.The results indicated that the bridge has better seismic performance,but wind tunnel test of section model is needed to verify the flutter stability. |
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| Keywords: | cable-stayed bridge dynamic property finite element method analysis |
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