爆破地震波作用下底层框架砌体结构的动力分析  

Dynamic Analysis of Underground Frame Structure in the Action of Blasting Seismic Wave

作　　者：陈洪斌[1] 李戎[2] 

机构地区：[1]襄樊学院土木工程系,湖北襄樊441003 [2]襄樊市国土资源局,湖北襄樊441003

出　　处：《爆破》2003年第4期14-16,共3页Blasting

摘　　要：　对爆破地震波作用下底层框架砌体结构进行了动力分析。建立了爆破地震波作用下底层框架砌体结构的时程分析方法。并利用某水电站地下厂房开挖爆破的地震波,对其周边的一栋一托四底层框架砌体结构,进行了实例分析,通过与构造地震波作用下结构的动力反应进行了对比,对其安全性进行了评估。A dynamic analysis of masonry building encountering the blasting seismic wave is presented. A floor model′s lateral stiffness matrix of the masonry building is deduced, and the time-history analysis method of masonry building encountering the blasting seismic wave is set up. Meanwhile, the author adopts the blasting seismic wave in excavating underground workshop of Zhong-ning hydropower plant(Fujian province) and analyses in a nearby five-floor masonry building. At last, a security evaluation is made by contrasting with the results of dynamic responses under earthquake waves.

关 键 词：爆破地震波 砌体结构 时程分析法 水电站 安全性 

分 类 号：TV542[水利工程—水利水电工程]