湖南大学学报（自然科学版）Issue(1)：29-36,8.
稳态冲击风作用下高层建筑风荷载特性试验研究
Experimental Study on the Wind Load Characteristics of High-rise Building in Stationary Downbursts
摘要
Abstract
Downbursts are dramatically different from the atmospheric boundary layer.To investigate the wind load characteristics of high-rise building in thunderstorm downbursts,a static impinging jet was used to simulate the thunderstorm downburst.Rigid model manomeric test was carried on a high-rise building.Both local and overall wind load characteristics were discussed in time domain and frequency domain.The results indicate that the position of the maximum mean surface pressure is consistent with the peak radial velocity.Meanwhile,the maximum surface pressure on the windward side is located at the bottom of the building,obviously different from the top part tested in atmos-pheric boundary layer wind field.The maximum mean radial wind load of each layer is located at the middle of the building.And the mean wind load is 0 at the cross-wind and torsional direction.Wind load spectrums of each layer keep unchanged along the height at the radial and cross-wind direction.But wind load spectrums changes obviously at the twist direction.关键词
冲击射流模型/高层建筑/刚性模型/风荷载特性/雷暴冲击风Key words
impinging jet model/high-rise building/rigid mode/wind load characteristic/thunder-storm downburst分类
建筑与水利引用本文复制引用
邹鑫,汪之松,李正良..稳态冲击风作用下高层建筑风荷载特性试验研究[J].湖南大学学报（自然科学版）,2016,(1):29-36,8.基金项目
国家自然科学基金资助项目（51208537），National Natural Science Foundation of China（51208537）；中央高校基本科研业务费 （）
