中美欧水平地震作用的比较  

Comparison of horizontal earthquake action in the seismic design codes of China,America and Europe

作　　者：卢华喜[1] 梁平英[1] 杨峻[2] 仇早生[1] 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013 [2]香港大学土木工程系

出　　处：《世界地震工程》2010年第1期167-172,共6页World Earthquake Engineering

基　　金：江西省自然科学基金(2008GZC0057);江西省教育厅科学技术研究项目(GJJ09217)

摘　　要：分析了中美欧抗震设计中的水平地震作用问题。首先,比较了中美欧抗震规范中建筑物重要性、强度折减系数的差异,介绍了中国规范的底部剪力法、美国规范的等效侧向荷载法以及欧洲规范的侧向荷载法。然后对一多层框架结构,分别作为办公楼和医院,计算了不同设防烈度下、不同延性等级下的水平地震作用,并进行了比较分析,获得了3种规范关于水平地震作用的一些差异。The differences of horizontal earthquake action in the seismic design codes of China,America and Europe are studied in this paper.Firstly,comparison of building importance,strength reduction factors of GB50011-2001,FEMA450 and Eurocode 8 is presented,and base shear method of GB50011-2001,equivalent lateral force procedure of FEMA450,lateral force analysis method of Eurocode 8 are summarized.Then,the seismic base shear of a multistorey frame structure with different ductility is computed as an office or a hospital building under intensities 7,8 and 9,the both computed results are compared,and some differences of seismic base shear are found for the three codes.

关 键 词：抗震设计 水平地震作用 重要性 强度折减系数 比较 

分 类 号：P315.95[天文地球—地震学]