作　　者： ; ; ; ;

机构地区： 同济大学土木工程学院土木工程防灾国家重点实验室

出　　处： 《同济大学学报（自然科学版）》 2008年第9期1170-1175,共6页

摘　　要： 介绍了某体育场挑篷模型风洞试验的概况和主要试验结果,详尽分析了挑篷上平均风压和脉动风压的分布,讨论了分块体型系数的特性和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,正迎风时,挑篷前缘的脉动风压系数较大,而按规范方法得到的围护结构设计风荷载偏小. The test conditions and main results of wind tunnel test for a stadium canopy roof are introduced. The mean and fluctuating wind pressures of the canopy roof are obtained and analyzed, The block shape coefficients of the roof are then derived and 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 fluctuating wind pressure coefficients of the leading edge of the canopy roof are comparatively large, and the wind loads for cladding structure from the code method are smaller than those from the statistical method.

关 键 词： 体育场挑篷 风洞试验 平均风压 脉动风压 风荷载

领　　域： [建筑科学]