| 大跨悬挑屋盖风振响应参与模态分析 |
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| 引用本文： | 吴海洋,梁枢果,郭必武. 大跨悬挑屋盖风振响应参与模态分析[J]. 武汉理工大学学报, 2007, 29(5): 89-93 |
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| 作者姓名： | 吴海洋 梁枢果 郭必武 |
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| 作者单位： | 1. 武汉大学土木建筑工程学院,武汉,430072
2. 武汉建筑设计院,武汉,430014 |
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| 摘 要： | 根据援巴哈马体育场和援几内亚体育场主看台悬挑屋盖风洞试验数据结果,分析和探讨了采用频域分析法计算大跨度悬挑屋盖风振响应时应考虑的结构模态数和频率范围,得到强风作用下悬挑屋盖结构均方根位移与内力响应随参与计算的模态数和频率范围的变化规律,并从屋盖表面测点风压谱密度的角度解释了这种变化规律。
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| 关 键 词： | 大跨悬挑屋盖 风洞试验 风振响应 参与模态 |
| 文章编号： | 1671-4431（2007）05-0089-05 |
| 修稿时间： | 2006-12-12 |
Participant Mode Analysis of Wind-induced Responses of Large Cantilevered Roof |
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| WU Hai-yang,LIANG Shu-guo,GUO Bi-wu. Participant Mode Analysis of Wind-induced Responses of Large Cantilevered Roof[J]. Journal of Wuhan University of Technology, 2007, 29(5): 89-93 |
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| Authors: | WU Hai-yang LIANG Shu-guo GUO Bi-wu |
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| Affiliation: | 1.School of Civil and Building Engineering, Wuhan University, Wuhan 430072, China; 2. Wuhan Architectural Design Institute, Wuhan 430014, China |
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| Abstract: | The mode number and the frequencies range, which were considered during calculating the wind-induced responses of large cantilevered roof by using the method of frequency domain, were analysed and discussed, according to the results of wind tunnd tests of Bahamas and Guinea stadium grandstand cantilevered roofs, and the roles that RIMS displacement and RMS internal force responses under strong wind force changing with participant modes number and frequencies range were obtained, and which could be explained from the point of wind pressure power spectrum densities of the measured points on surface of the roof. |
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| Keywords: | large cantilevered roof wind tunnel tests wind-induced responses participant modes |
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