雷诺数对柱面屋盖脉动风压非高斯特性与风压极值的影响  

Reynolds number effects on non-Gaussian features of fluctuating wind pressures and extreme wind pressures of cylindrical roofs

作　　者：邱冶[1] 王晓梦[1] 朱召泉[1] Qiu Ye;Wang Xiaomeng;Zhu Zhaoquan(College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学土木与交通学院,江苏南京210098

出　　处：《山西建筑》2018年第30期44-46,共3页Shanxi Architecture

基　　金：江苏省自然科学基金项目(BK20170880);国家自然科学基金青年基金项目(51808194);中国博士后科学基金资助项目(2016M591754)

摘　　要：基于柱面屋盖的风洞测压试验,研究了不同雷诺数下脉动风压的非高斯特性,并通过改进独立风暴法分析了风压极值分布随雷诺数的变化规律。结果表明,当Re=6. 90×104～2. 48×105时,非高斯风压和风压极值分布具有明显的雷诺数效应。The non-Gaussian features of fluctuating wind pressures on cylindrical roofs were investigated based on the external pressure wind-tunnel tests. Then, the Reynolds number effects on the extreme wind pressure distributions were analyzed by using the improved method of independent storms. The results reveal that, when Re ranges from 6.90×10 4 to 2.48×10 5, there are significant Reynolds number effects on the distributions of non-Gaussian and extreme wind pressures.

关 键 词：柱面屋盖 雷诺数效应 非高斯特性 极值风压 

分 类 号：TU312.1[建筑科学—结构工程]