深圳京基金融中心风振响应分析  

Analysis of wind-induced responses of Shenzhen KingKey Finance Tower

作　　者：李波[1] 杨庆山[1] 范重[2] 田玉基[1] 

机构地区：[1]北京交通大学,北京100044 [2]中国建筑设计研究院,北京100044

出　　处：《土木工程学报》2010年第8期30-36,共7页China Civil Engineering Journal

基　　金：国家自然科学基金青年基金项目(50808014);国家自然科学基金杰出青年基金项目(56237845)

摘　　要：以风洞试验结果为基础,对高度为439m的深圳京基金融中心风振响应进行详细分析。分析结果表明,该类超高层建筑的横风向响应大于顺风向响应,在结构设计中应予以充分考虑;建筑物对风荷载的动力放大作用明显,结构风振响应以共振响应为主;由于各振型之间的耦合作用较弱,在风振响应分析中考虑少数振型即可满足精度要求;设置加强层可以有效的减小表征层间剪切变形的有害层间位移角。研究结果还表明深圳京基金融中心位移响应、加速度响应均随风向角大致均匀变化,周围建筑物对其干扰效应不明显。Shenzhen KingKey Finance Tower（KFT） is of a height of 439m.Wind load plays the most important role for the structural design.Analysis of wind-induced responses of the Shenzhen KFT is presented using the results of wind tunnel test.For the super-tall building,wind-induced response in the across-wind direction is larger than that in the along-wind direction,and should be adequately considered in structural design.Wind-induced response is dominated by the resonant component and the effect of dynamic magnification is significant.The coupling between modes can be neglected and analysis using several modes can meet the required accuracy.Displacement and acceleration responses vary uniformly as azimuth changes,and the interference of surrounding buildings is insignificant.

关 键 词：超高层建筑 风振响应 顺风向 横风向 

分 类 号：TU973.213[建筑科学—结构工程] TU311.3