摘要
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.
出处
《建筑结构》
CSCD
北大核心
2004年第7期39-43,共5页
Building Structure
关键词
风荷载
风振响应
湍流度
脉动风速谱
风压
code
wind load
wind induced vibration response
turbulence intensity
coherence structure
peak factor