葫芦岛体育馆屋盖风荷载试验研究  

Wind tunnel test of Huludao Gymnasium

作　　者：李洪求 郝嵘 康留琛 谢龙宝 

机构地区：[1]北京维拓时代建筑设计有限公司,北京100025

出　　处：《建筑结构》2011年第7期123-126,共4页Building Structure

摘　　要：以葫芦岛体育馆屋盖为工程背景,进行了缩尺比为1:200的刚性模型同步测压试验,详细研究了该屋盖的平均风荷载和脉动风荷载的分布特征,以及围护结构和承重结构设计风荷载。结果表明:屋盖表面风压以负压为主,在屋盖突起的背风区表现为最大;按规范方法得到的用于围护结构设计的风荷载大于实际的极值风压,建议围护结构设计采用按概率统计方法得到的极值风压进行;通过阵风荷载因子法获得了用于承重结构设计的等效静力风荷载,其值范围为0.01～-0.69kPa,最大负压出现在屋盖突起的背风区。A rigid test model of Huludao Gymnasium was made with a scale of 1∶200.Wind tunnel tests were carried out to measure the wind pressures on the roof.The characteristics of the mean,fluctuating,extreme pressure coefficients as well as the effective static loads on the roof were particularly studied.It is shown that negative pressures are predominant on the roof,and the maximum value is present on the backward of the raised segment.Extreme wind pressures for claddings design obtained from present code are smaller than the actual values.The effective static loads vary between 0.01～-0.69kPa by the method of GLF.

关 键 词：体育馆 平均风荷载 极值风荷载 等效静力风荷载 

分 类 号：TU332[建筑科学—结构工程]