（中国建筑标准设计研究院， 北京 100048）

［摘要］对中国、美国和日本三国钢框架结构抗震设计相关规定进行了比较，比较了三个国家设计地震力取值水平、结构抗震等级划分、楼层层间位移角限值、钢柱和钢梁的板件宽厚比限值、钢梁水平侧向支撑设置要求等内容。通过以上比较，阐明了三个国家对于钢框架结构抗震设防思路的相同和不同之处、抗震设防的大致安全度水平。

［关键词］钢框架结构； 地震反应谱曲线； 结构抗震等级； 层间位移角限值； 钢梁侧向支撑

中图分类号：TU318-1， TU393-2文献标识码：A文章编号：1002-848X(2016)19-0001-07

Comparison of seismic design provisions for steel  frames in China, U.S. and  Japan（Ⅰ）： general design rules

Yu Yinquan, Dong Qingyuan, Wang Zhe

(China Institute of Building Standard Design & Research, Beijing 100048, China)

Abstract:The seismic design provisions for steel  frames in China, U.S. and Japan were compared in terms of design seismic force level, structural seismic grade division, story drift angle limitation, width-to-thickness ratio limitations for steel beams and columns and arrangement requirement for horizontal lateral bracing of steel beams. Through comparison, it intends to clarify the similarities and differences of seismic fortification thoughts of steel frame structure in the three countries and the safety levels of seismic fortification for China, U.S. and Japan.

Keywords:steel frame structure； earthquake response spectrum curve； structure seismic grade； inter-story drift angle limitation； lateral bracing of steel beam

作者简介：郁银泉，教授级高级工程师，一级注册结构工程师，Email: yuyq@cbs.com.cn。