摘要
利用高频测力天平技术 ,在四种不同风场中对 15种不同外形的超高层建筑的刚性模型进行了风洞试验 ,测量了这些模型的横风向基底弯矩 ,即一阶横风向广义风荷载 ,考察了风场类型、模型长细比、宽厚比及模型横截面角沿的修正对超高层建筑横风向广义气动力谱的影响规律 ,并拟合出一个以风场类型、模拟长细比、宽厚比为参数的超高层建筑横风向广义气动力谱的闭合表达式 .通过与国外有关文献给出的结果的对比 。
models with different figures were tested with a high frequency force balance (HFFB) technique in 4 types of windfields in a wind tunnel to study the effects of windfields,models' aspect ratio,side ratio,corner cut and recession on the across-wind load of super high-rise buildings.A close equation of the power spectra of across-wind loads on super high rise buildings has been obtained by curve fitting method,and has been verified by the results from the present wind tunnel test and other literatures.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第5期627-632,共6页
Journal of Tongji University:Natural Science
基金
国家自然科学基金重大资助项目 (5 9895 410 )
教育部高等学校骨干教师资助计划资助项目
关键词
超高层建筑
横风向气动力谱
长细比
宽厚比
super high-rise building
across-wind loads
aspect ratio
side radio
