深圳湾体育中心风洞试验及风振分析研究  

Wind Tunnel Test and Wind-Induced Vibration Research on Shenzhen Bay Sports Center

作　　者：何连华[1] 陈彬磊[2] 陈凯[1] 郭宇飞[2] 张勇[2] 符龙彪[1] 

机构地区：[1]中国建筑科学研究院,北京100013 [2]北京市建筑设计研究院有限公司,北京100045

出　　处：《建筑钢结构进展》2015年第5期39-45,50,共8页Progress in Steel Building Structures

摘　　要：对深圳湾体育中心进行了测压试验、风环境试验和风振响应分析。着重研究了屋盖悬挑部分上、下表面脉动风压的相关性,指出相关系数对合压力脉动强度有重要影响。并通过对比测压试验,评估了周边建筑对屋盖平均风压和脉动风压分布的影响。周边建筑的存在使得平均风压幅值降低,而脉动风压明显增大。根据风环境试验结果,分析了体育场内部风场的分布,对当地主导风向进行评价,并提出针对性建议。最后,基于同步测压试验结果,对屋盖结构进行了基于时程方法的风致响应计算,得到了动力风荷载作用下的位移响应特征。In this paper,a series of wind engineering studies are carried out on Shenzhen Bay Sports Center,including wind pressure test,wind environment test and wind-induced response analysis.The investigation is focused on the pressure correlation between the upper surface and lower surface of the cantilever roof.The dependency of pressure fluctuation on the correlation coefficient is identified.The comparison tests show the mean pressure and fluctuation pressure on the roof are significantly different for the cases with and without surrounding buildings.With surrounding buildings,the amplitude of mean pressure is smaller,while the fluctuation pressure becomes evidently larger.Furthermore,wind field inside the stadium is obtained through the wind environment test,and wind environment evaluation is carried out according to local dominant wind directions.The recommendations are made to improve the wind environment in the stadium.Finally,wind-induced response is obtained by the time-history analysis on the basis of the synchronous pressure measurement results.The characteristics of displacement response are obtained.

关 键 词：大跨空间屋盖 相关系数 行人高度风环境 风致振动 

分 类 号：TU318[建筑科学—结构工程] TU393.3