| 风速谱对大跨度屋盖风振系数的影响 |
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| 引用本文： | 杨应华,魏俊,冯真. 风速谱对大跨度屋盖风振系数的影响[J]. 特种结构, 2010, 27(6): 29-33 |
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| 作者姓名： | 杨应华 魏俊 冯真 |
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| 作者单位： | [1]西安建筑科技大学,710055 [2]中煤国际工程集团北京华宇工程有限公司西安分公司,710061 |
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| 摘 要： | 本文基于随机振动理论,在频域内采用风力谱分析法,进行了大跨度梯形钢屋架双坡屋盖随机振动分析。采用6种水平脉动风速谱图,讨论了其对屋盖风振响应和风振系数的影响。同时,讨论了竖向脉动风速谱对所分析大跨屋盖风振响应的影响,以供工程设计及研究工作参考。
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| 关 键 词： | 风速谱 风振响应 风振系数 |
The Influence of Wind Power Spectrum on Wind-induced Vibration of Large Span Roofs |
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| Yang Yinghua,Weijun,FengZhen. The Influence of Wind Power Spectrum on Wind-induced Vibration of Large Span Roofs[J]. Special Structures, 2010, 27(6): 29-33 |
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| Authors: | Yang Yinghua Weijun FengZhen |
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| Affiliation: | Yang Yinghua WeiJun FengZhen(1.Xi＇an University of Architecture and Technology,710055 China; 2.Xi＇an Branch of SCIEG Beijing Huayu Engineering Co., Ltd,710061 China) |
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| Abstract: | Based on random vibration theory, a wind power spectral analysis method in the frequency domain is used to analyze long-span steel truss supporting gable roofs. Six power spectral densities of horizontal wind speed are employed. The influence of them on the wind-induced vibration responses and wind vibration factors is discussed. At the meantime, the influence of then on the wind-induced vibration responses is also discussed, which can be applied in practical engineering design and research. |
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| Keywords: | Wind power spectrum Wind-induced vibration response Wind-induced vibration factor |
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