Wind tunnel experimental study on evaluation criterion
of wind environment based on decision fusion
CHEN Yong1, CHEN Chao1, JIN Xin-yang2, WANG Xu1, SUN Bing-nan1, CHEN Shui-fu1
1. Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;
2. China Academy of Building Research, Wind Engineering Research Center, Beijing 100013, China
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 3.2 m/s is less than 6% in case that one is “Sitting”; the occurrence probability of the winds whose speed exceed 4.3 m/s is less than 6% in case that one is “Standing”; the occurrence probability of the winds whose speed exceed 5.9 m/s is less than 5% in case that one is “Walking”. The comparison of the presented criterion and the other international criteria shows that the presented criteion is more restrictive.
CHEN Yong, CHEN Chao, JIN Xin-yang, WANG Xu, SUN Bing-nan, CHEN Shui-fu. Wind tunnel experimental study on evaluation criterion
of wind environment based on decision fusion. J4, 2012, 46(12): 2210-2214.
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