高层建筑层风力特性实验研究  

Experimental Investigation on Local Wind Force of High-Rise Building

作　　者：林宁[1] 梁波[1] 田村幸雄 

机构地区：[1]华中科技大学土木工程学院,武汉430074 [2]东京工芸大学建筑学科

出　　处：《振动工程学报》2003年第4期409-414,共6页Journal of Vibration Engineering

摘　　要：对 9种矩形截面的高层建筑物模型进行了风洞实验 ,观测了模型的层风力特征。通过对大量实验数据的处理和分析 ,研究了层风力系数和层风力功率谱密度函数在建筑物高度方向上的变化特征 ,分析了结构高、宽比和矩形截面长、宽比对高层建筑物层风力系数和局部功率谱密度函数特性的影响 。Nine models with different rectangular cross sections are tested in a wind tun nel to study the characteristics of the local wind force on high rise buildings . In this paper, wind tunnel test data have been analyzed to determine the local w ind force coefficients and power spectra which are varying in vertical direction of the models. The effects of structural aspect ratio and side ratio on the ch aracteristics of the local wind force coefficients and power spectra on tall bui ldings are also investigated. Some important conclusions are reached on the correlation of the local wind force in the end.

关 键 词：高层建筑 风洞实验 风力系数 功率谱 层风力 

分 类 号：TU317.1[建筑科学—结构工程]