| 高层建筑风荷载相干性研究 |
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| 引用本文： | 唐意,严亚林,金新阳.高层建筑风荷载相干性研究[J].建筑结构,2011(11). |
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| 作者姓名： | 唐意 严亚林 金新阳 |
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| 作者单位： | 中国建筑科学研究院建研科技股份有限公司; |
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| 基金项目： | 国家自然科学基金重大研究计划面上项目(90815015) |
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| 摘 要： | 利用高层建筑刚性模型测压风洞试验结果,对顺风向风荷载竖向、水平相干性,迎背风面相干性以及横风向、扭转方向风荷载相干性的主要特征进行研究。利用算例说明了迎背风面相干性以及横-扭风荷载相干函数对于风振响应的影响。从计算结果来看,迎背风面全相干假定将使顺风向风振响应计算结果偏于保守;当结构刚心和质心偏离时,假定横扭风荷载相干性等于零会低估横风向和扭转方向风振响应。
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| 关 键 词： | 高层建筑 顺风向风荷载 横风向风荷载 扭转风荷载 相干性 |
Research on coherences of wind loads on tall buildings |
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| Tang Yi,Yan Yalin,Jin Xinyang.Research on coherences of wind loads on tall buildings[J].Building Structure,2011(11). |
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| Authors: | Tang Yi Yan Yalin Jin Xinyang |
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| Affiliation: | Tang Yi,Yan Yalin,Jin Xinyang(CABR Technology Co.,Ltd.,China Academy of Building Research,Beijing 100013,China) |
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| Abstract: | Several tall building models were tested in a wind tunnel for the wind pressures acting on the buildings.The vertical coherences of along-wind,across-wind and torsion wind loads and lateral coherences of along-wind load are analyzed in detail.Coherences between pressure on windward and leeward faces and between across-wind and torsion wind loads are researched.Then effects of the coherences on wind excited structural responses are studied.The results indicate,when the stiffness and mass centers deviate with... |
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| Keywords: | tall buildings along-wind across-wind torsion wind load coherences |
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