典型超高层建筑风荷载的风洞试验研究  

Wind Tunnel Study of Wind Loads on a Typical Super-high Rise Building

作　　者：雷静雅[1] 徐兵先[2] 马守龙[2] 徐家云[3] 

机构地区：[1]中国地震局地震研究所地震大地测量重点实验室,武汉430071 [2]武汉理工大学土木工程与建筑学院,武汉430070 [3]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070

出　　处：《武汉理工大学学报》2013年第1期94-98,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51278393)

摘　　要：通过测力风洞试验对典型超高层建筑风荷载的作用机理进行了系统的研究。评估了各风力脉动分量的相关特性,研究了结构顺风向、横风向和扭转基底谱的分布特征,分析了结构三维等效静力风荷载及顺风向风振系数,并与规范结果进行了对比研究。研究成果可为超高层建筑的抗风设计及相关研究提供有用的资料及依据。The mechanics of wind load on a typical super-high rise building were evaluated by a wind tunnel test in boundary layers. The cross-correlations among various wind loading components were presented and discussed in detail. In addition, further studies were conducted to investigate the spectral characteristics of along-wind, across-wind and tor- sional components. The equivalent static wind loads and the wind-induced amplifier factors of the building were caculated based on the wind tunnel results and compared with those estimated from the building design codes of China. The out- comes of this study are expected to be valuable for the design of super tall buildings.

关 键 词：超高层 风荷载 风洞试验 风荷载功率谱 

分 类 号：TU973.2[建筑科学—结构工程]