圆角三角形双塔高层建筑风荷载干扰效应  

INTERFERENCE EFFECTS OF WIND LOADS OF ROUNDED-CORNER TRIANGULAR HIGH-RISE TWIN TOWERS

作　　者：缪海悦 陈水福[1] 丁通 MIAO Haiyue;CHEN Shuifu;DING Tong(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学建筑工程学院,杭州310058

出　　处：《低温建筑技术》2023年第5期138-142,共5页Low Temperature Architecture Technology

摘　　要：为探索圆角弧边三角形高层建筑的风致干扰效应,文中以圆角弧边三角形双塔高层建筑为对象,采用风洞试验方法,研究了双塔弧面迎风时受扰建筑脉动风荷载的干扰效应。结果表明双塔弧面对称迎风时受扰建筑层脉动阻力系数、脉动升力系数达到最大;当双塔相对间距比不超过2时,弧面不对称迎风时干扰效应会使受扰建筑基底脉动弯矩频谱在高频处出现显著共振能量。This paper adopts the wind tunnel testing method and studies the interference effects of fluctuating wind loads of rounded-corner triangular high-rise twin towers in wind directions where curved-surfaces are windward to explore the wind-induced interference effects of rounded-corner arc-edge triangular high-rise buildings.The re-sults show that the fluctuating drag coefficient and fluctuating lift coefficient of the interfered building reach the max-imum when curved surfaces of twin towers are symmetrically windward.When the relative spacing ratio of twin tow-ers is no more than 2 and curved surfaces are asymmetrically windward,the interference effect causes significant res-onance energy in the high frequency of the spectrum of fluctuating base moment of the interfered building.

关 键 词：风洞试验 高层建筑 圆角弧边三角形 脉动风荷载 干扰效应 

分 类 号：TU311.3[建筑科学—结构工程]