【作者】 刘立平； 李英民； 郑妮娜； 石诚；

【Author】 Liu Liping~1 Li yingmin~1 Zhengnina~1 Shi Cheng~2 (1.College of Civil Engineering,Chongqing University,Chongqing,China,40045)2.IPPR Engineering International,Beijing,China,100089

【机构】 重庆大学土木工程学院； 中元国际工程设计研究院；

【摘要】 随着城市建设中复杂体型的非规则多高层建筑日益增多,双向地震输入引起的结构效应组合是结构抗震设计中应加以考虑的问题。现行规范采用基于随机振动理论基础的简化方法进行双向水平地震作用下结构效应组合计算,理论方法与简化方法间的关系、简化方法的适用性、简化方法的可靠性有待分析。本文根据随机振动理论推导了双向地震作用效应组合的理论公式,分析了理论方法与简化方法间的关系,并对双向水平地震作用下结构效应组合方法进行了讨论,提出了双向水平地震作用效应组合计算中应注意的问题。更多还原

【Abstract】 The combination of action effect for structure under the earthquake action in two directions simultaneously is very important in structural seismic analysis.The SRSS method which simplified for the theory formula gotten from the random vibration has used in the current codes,but the relationship between SRSS and the random vibration theory formula,and the applicability of SRSS is worth to study.In this paper,the theory formula of combination of action effect for action under the earthquake action in two directions simultaneously is deduced,the relationship between SRSS and the random vibration theory formula is gained,and the key about the combination of action effect for action under the earthquake action in two directions simultaneously is discussed.更多还原