矩形截面高层建筑三维耦合风振响应的风洞实验研究  

Wind Tunnel Test Study on 3-D Coupled Wind-induced Response of Rectangular Tall Buildings

作　　者：宋微微[1] 梁枢果[1] 毛家雄 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072

出　　处：《武汉理工大学学报》2014年第4期106-111,共6页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50678137)

摘　　要：通过长宽比3∶1的矩形截面高层建筑三维气动弹性模型风洞试验,采用激光位移计同时测量模型中心点的顺风向、横风向位移和角点的位移,并且运用多点同步扫描技术测量气弹模型表面风压,分析了结构偏心对三维风致均方根位移响应以及对气弹模型上的动力风荷载的影响规律,为刚心、质心不重合的矩形截面高层建筑的抗风初步设计提供参考。Based on wind tunnel tests of three-dimensional aero-elastic model of rectangular cross-section high-rise buildings with side ratio of 3： 1, laser displacement meters were used to measure the along-wind and across-wind displacements of the center point of the model and angular displacement of the corner, and multi-point synchronous scanning technique was used to measure the surface pressure of the aero-elastic model. Finally, the effects of structural eccentricity on the three-dimensional wind induced RMS displacement responses and the rules on dynamic wind loads of the aero elastic model were analyzed. The results can provide reference for preliminary wind resistant design of rectangular cross section high rise buildings with eccentricity between centers of mass and rigidity.

关 键 词：扭转响应 风洞试验 偏心结构. 三维气弹模型 

分 类 号：TU973[建筑科学—结构工程]