| 站台雨棚风振响应及参与振型分析 |
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| 引用本文： | 张冬兵,梁枢果,吴海洋,陈寅.站台雨棚风振响应及参与振型分析[J].江苏大学学报(自然科学版),2010,31(1). |
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| 作者姓名： | 张冬兵 梁枢果 吴海洋 陈寅 |
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| 作者单位： | 1. 武汉大学,土木建筑工程学院,湖北,武汉,430072
2. 中南电力设计院,湖北,武汉,430071 |
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| 基金项目： | 国家自然科学基金资助项目(90715023) |
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| 摘 要： | 研究火车站站台雨棚多振型、振型交叉项及荷载谱交叉项对风振响应的影响,并分析计算应考虑的结构频率范围.根据两个火车站的风洞试验及其站台有限元分析,采用频域方法,计算考虑参与振型数量、是否考虑振型交叉项和荷载谱交叉项时的均方位移和内力响应,并通过测点风压谱及振型应变能分析来评价参与振型频率范围的合理性.结果表明,参与振型的数量、振型交叉项及荷载谱交叉项对结构响应均有不同程度的影响;计算考虑3.5Hz以内的振型可以满足精度要求.
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| 关 键 词： | 风振响应 参与振型 站台雨棚 风洞试验 频域法 |
Wind-induced dynamic response analysis on participant mode of platform canopy |
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| Zhang Dongbing,Liang Shuguo,Wu Haiyang,Chen Yin.Wind-induced dynamic response analysis on participant mode of platform canopy[J].Journal of Jiangsu University:Natural Science Edition,2010,31(1). |
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| Authors: | Zhang Dongbing Liang Shuguo Wu Haiyang Chen Yin |
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| Institution: | 1.School of Civil and Building Engineering/a>;Wuhan University/a>;Wuhan/a>;Hubei 430072/a>;China/a>;2.Central Southern China Electric Power Design Institute/a>;Hubei 430071/a>;China |
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| Abstract: | The influences of the multi-mode,coupling modes and wind load spectrum of railway station's platform canopies on the wind-induced response were investigated,and the range of structure frequency was analyzed.Based on the wind tunnel tests of two railway stations and finite element analysis of two railway platforms,by use of frequency-domain method,the quantity of contributing modes was calculated,and the RSM displacement and RSM internal force were estimated with and without considering the effects of coupli... |
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| Keywords: | wind-induced response participant mode platform canopy wind tunnel test frequency-domain method |
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