摘要
为确定超越概率阈值风环境评价方法中的风速阈值,进行了相应的风洞试验,试验结果采用决策融合方法进行处理,从而获得了具有较高可靠性的风速阈值.考虑湍流风对舒适度的影响,给出等效风速理论中的峰值因子建议值为1.7.试验结果表明好的风环境意味着:人在‘坐’时,速度超过3.2m/s的风出现概率少于6%;人在‘站立’时,速度超过4.3m/s的风出现概率少于6%;对于人在‘行走’时,速度超过5.9m/s的风出现概率少于5%.与国际现有风环境评价标准的比较表明该标准更为严格.
In order to determine the criterion for the threshold exceedance method, which is for wind environment evaluation, the corresponding wind tunnel experiments were conducted. Decision fusion methodology was employed to process the results of wind tunnel experiment. Whereby, a reliable criterion was obtained. Taking the effects of a gusty wind on human into account, the peak factor for the equivalent wind was given, and a value of 1. 7 was suggested. The experimental results indicat that a good wind environment means, the occurrence probability of the winds whose speed exceed 3. case that one is ＂Sitting＂; the occurrence probability of the winds whose speed exc 6% in case that one is ＂Standing＂; the occurrence probability of the winds whose less than 5% in case that one is ＂Walking＂. The comparison of the presented international criteria shows that the presented criteion is more restrictive. 2 m/s is less than 6 % in eed 4.3 m/s is less than speed exceed 5.9 m/s is criterion and the other
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2012年第12期2210-2214,共5页
Journal of Zhejiang University：Engineering Science
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
评价标准
风洞试验
wind environment
evaluation criterion
wind tunnel experiment
