某体育会展中心大跨屋盖系统风荷载试验研究  

Wind load test on model of a sports and exhibition center long span roof

作　　者：陈家光[1] 张旭伟 黄三明[1] 马春艳[1] 葛义韬[1] 

机构地区：[1]江苏大学土木工程系,江苏镇江212013 [2]镇江市住房与城乡建设局抗震办公室,江苏镇江212000

出　　处：《四川建筑科学研究》2012年第3期46-51,共6页Sichuan Building Science

基　　金：江苏省博士后基金资助项目(0701008B)

摘　　要：介绍了某体育会展中心会展馆和体育场的大跨屋盖系统模型风洞试验的概况和主要试验结果,通过分析典型测点方法详尽研究了挑篷上平均风压和脉动风压的分布,讨论了脉动风压对总设计风荷载的贡献,并对比了计算围护结构风荷载的规范方法和统计方法;结果表明,正面迎风时,体育会展馆和体育场屋盖边缘的平均风压和脉动风压系数均较大,采用规范方法算得的会展馆围护结构风荷载大部分小于采用统计方法算得的风荷载,而用规范方法算得的体育场围护结构风荷载均小于采用统计方法算得的风荷载,在大跨屋盖设计中应分区域选用两者中较大值作为风荷载设计标准值。The test conditions and main results of wind tunnel test for an exhibition hall and a stadium long span roof of a Sport Convention Center are introduced. The mean and fluctuating wind pressures of the roof are obtained and analyzed by typical measuring point analysis approach. The ratios between the fluctuating wind pressures to total wind loads are discussed. The design wind loads for cladding structure by using the code method and statistical method are computed and then compared. Results show that the upwind mean and fluctuating wind pressure coefficients of the leading edge of the roof are comparatively large, the wind loads for the cladding structure of the exposition from the code method are mostly smaller than those from the statistical method, and the wind loads for the cladding structure of the stadium from the code method are all smaller than those from the statistical method. In the design of long span roof,the larger one should be selected as the characteristic value of wind load in separated areas.

关 键 词：大跨屋盖 风洞试验 平均风压 脉动风压 风荷载 

分 类 号：TU973.213[建筑科学—结构工程]