| 斜拉桥抖振时域分析实用方法 |
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| 引用本文： | 黄新艺,盛洪飞,李岩,陈彦江.斜拉桥抖振时域分析实用方法[J].兰州理工大学学报,2007,33(6):107-110. |
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| 作者姓名： | 黄新艺 盛洪飞 李岩 陈彦江 |
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| 作者单位： | 1. 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090
2. 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090;黑龙江大学,建筑工程学院,黑龙江,哈尔滨,150086 |
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| 基金项目： | 国家自然科学基金(50678051) |
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| 摘 要： | 基于模态综合理论提出一种斜拉桥抖振时域分析实用方法.在桥梁随机风场数值模拟的基础上,建立斜拉桥时域抖振分析计算模型.该方法简化了自激力时域化过程,并在计算中考虑了气动刚度、气动阻尼和气动耦合作用对结构响应的影响,提高了斜拉桥抖振时域分析的效率.通过对一座大跨斜拉桥的抖振时域分析,验证方法的正确性和可行性.
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| 关 键 词： | 斜拉桥 抖振 时域分析 模态综合理论 |
| 文章编号： | 1673-5196（2007）06-0107-04 |
| 收稿时间： | 2007-04-23 |
| 修稿时间： | 2007年4月23日 |
Practical method of buffeting analysis in time domain for cable-stayed bridge |
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| Huang Xin-yi,SHENG Hong-fei,LI Yan,CHEN Yan-jiang.Practical method of buffeting analysis in time domain for cable-stayed bridge[J].Journal of Lanzhou University of Technology,2007,33(6):107-110. |
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| Authors: | Huang Xin-yi SHENG Hong-fei LI Yan CHEN Yan-jiang |
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| Abstract: | A practical method of buffeting analysis in time domain for cable-stayed bridges was presented based on the mode integration theory.Analysis and computation model of time domain buffeting of cable-stayed bridge was built up on the basis of numerically simulating the stochastic wind field around the bridge.Using this mothed,the process of transformation of self-excited force into time domain was simplified,and the influence of aerodynamic stiffness,aerodynamic damping and aerodynamic coupling on structure response was considered,so that the computation efficiency of buffeting analysis for cable-stayed bridge was improved.By applying this method to a large-span cable-stayed bridge,the validity and feasibility of this method was verified. |
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| Keywords: | cable-stayed bridges buffeting time domain analysis mode integration theory |
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