摘要
提出了等效风速比概念及相应假设条件,并将其应用于超越概率阈值评价方法.针对某一工程实例的风环境模拟分析表明各个评价标准间存在差异.基于威布尔分布理论,推导了超越概率阈值评价方法的各标准统一描述方法,并利用其研究了各个标准之间的相对宽严程度.结果表明:对于各种人类活动,UWO标准最为宽松;对于行走,Force Technology标准最为严格;对于短时间或长时间坐立,Isyumor and Davenport标准最为严格.
Equivalent wind speed ratio and relevant assumptions were proposed,which were used in the wind-environment assessment based on the threshold-of-probability-of-exceedance.The differences between the criteria were found while applying the new method to an actual building.Thus,a uniformed description of the criteria was derived based on the theory of Weibull distribution.Whereby,the strictness of the criteria developed in the recent years could be compared.And this work provides a theoretical tool to homogenize the wind environment criteria in the future.It is found that UWO criterion was the most undemanding for all human activaities.Furthermore,Force Thchnology creterion was the most rigorous for walking,as well as Isyurnov an Davenport criterion for sitting and standing.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第10期103-107,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家科技支撑计划资助项目(2006BAJ01B07-04)
国家自然科学基金资助项目(50708096)
浙江省自然科学基金资助项目(Y1110143)
关键词
风环境
评价方法
超越概率
威布尔分布
数值模拟
wind environment
assessing
exceedance probability
Weibull distribution
numerical simulation
