| 彭溪河特大斜拉桥风致颤振分析 |
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| 引用本文： | 黎曦,涂忠仁,顾安邦.彭溪河特大斜拉桥风致颤振分析[J].重庆交通学院学报,2007,26(6):29-32,42. |
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| 作者姓名： | 黎曦 涂忠仁 顾安邦 |
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| 作者单位： | 重庆交通大学土木建筑学院，重庆交通大学河海学院，重庆交通大学土木建筑学院 重庆400074，重庆高速公路发展有限公司北方建设分公司，重庆401147，重庆400074，重庆400074 |
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| 摘 要： | 针对风荷载对斜拉桥作用敏感的特点,结合振动型态特性,探讨了风致颤振机理及分析方法.在此基础上,以彭溪河特大斜拉桥为例,考虑结构几何非线性影响,使用大型桥梁专业软件M IDAS,建立了符合动力特点的空间模型,对成桥、施工危险状态进行了动力特性分析,据此评估了该桥的抗风性能,为大跨斜拉桥抗风设计及动力稳定分析提供参考依据。
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| 关 键 词： | 大跨径 斜拉桥 动力特性 抗风性能 颤振 |
| 文章编号： | 1674-0696（2007）06-0029-03 |
| 收稿时间： | 2006-06-14 |
| 修稿时间： | 2006-10-18 |
Wind-Excited Flutter Analysis of Cable-Stayed Bridge with Long Span of Pengxi River |
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| LI Xi, TU Zhong-ren, GU An-bang.Wind-Excited Flutter Analysis of Cable-Stayed Bridge with Long Span of Pengxi River[J].Journal of Chongqing Jiaotong University,2007,26(6):29-32,42. |
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| Authors: | LI Xi TU Zhong-ren GU An-bang |
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| Abstract: | Focusing on the sensitivity of wind load action on cable-stayed bridge,investigated the mechanism and analytical method of wind-excited flutter.On the basis of that,taking the Pengxi river cable-stayed bridge with long span as an example,a proper dynamic calculation model was established by using the professional software of MIDAS and with geometric nonlinear consideration.According to the dynamic behavior at both construction and completion stage,the wind-resistant behavior of the bridge was evaluated.These results provide reference for the design of wind-resistant and the analysis of dynamic stability. |
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| Keywords: | long span cable-stayed bridge dynamic behavior wind-resistant behavior flutter |
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