顺风向等效风荷载及响应——主要国家建筑风荷载规范比较

Along\|wind Static Equivalent Wind Loads and Responses of Tall Building

详细地比较了中、美、欧、日、加、澳等国风荷载规范中顺风向响应的计算内容。通过对基本风压、平均风速剖面、湍流强度剖面、脉动风速谱、相关函数等多个方面的详细分析比较 ,指出中国规范在湍流强度、响应峰值系数的选取、相关函数的选用等方面可能存在的问题 。

This paper presents the detailed comparison on the guidelines and procedures about computing along\|wind response of tall buildings in GB50009—2001,ACSE7—98,Eurocode 1995,RLB\|AIJ1996,NBC1995,SAA Loading Code 2000.With the minute comparisons on basic wind pressure,mean velocity profile,turbulence intensity profile,wind spectrum,correlation structure,it seems that there are several points that must be paid attention to,such as turbulence intensity,response peak factor,correlation structure in Chinese code.The equivalent static pressure and response for a tall building are presented to illustrate the overall comparison among various codes.