强震作用下钢筋混凝土框架结构随机响应分析  

Random Seismic Responses of RC Frame Structures Under Strong Earthquakes

作　　者：袁泉[1] 蒋平[1] 姚谦峰[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《武汉理工大学学报》2010年第9期178-180,256,共4页Journal of Wuhan University of Technology

基　　金：国家"十一五"科技支撑计划资金(2006BAJ04A02-05);中央高校基本科研业务费专项资金(2009JBM071)

摘　　要：将地震地面运动考虑为随机过程是研究地震随机反应的重要方法,结合随机振动理论和动力分析有限元法,简介了随机地震动模型的,推导了框架结构在平稳随机地震作用下的基本方程。取汶川强震区中实际受损的钢筋混凝土框架结构为算例,运用Ansys建立模型,分析了处于8度区强震作用时在随机地震作用下的响应特性。It is important method to research the random seismic responses through consider earthquake-induced ground motion as stochastic processes.Based on the random vibration theory and the finite element method of dynamic analysis,the stochastic seismic ground motion model is introduced.The fundamental equation of frame structures under stationary random earthquake is provided.The example of RC frame structures in Wenchuan strong earthquake area is destroyed.The model of example is builded,and its response characteristic under random earthquake in eight defending intensity area is analysised by Ansys software.

关 键 词：随机振动 框架结构 强震作用 汶川地震 

分 类 号：TU375.4[建筑科学—结构工程]