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大跨悬挑屋盖风振响应参与模态分析

Hai-yang WU,Shu-guo LIANG,Bi-wu GUO

Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology（2007）

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Abstract
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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Key words
Large cantilevered roof,Participant modes,Wind tunnel tests,Wind-induced responses
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