陈小峰¹，邓开国¹，郝际平²
    (1 中国建筑西南设计研究院有限公司，成都610081; 2 西安建筑科技大学土木工程学院，西安710055)

[摘要] 在抗震设防目标、抗震设计类别、设计反应谱、地震作用取值和梁柱连接等方面对CECS160和GB50011进行了分析比较。CECS160和GB50011对钢筋混凝土结构地震作用取值基本相同，而两者对钢结构地震作用的取值差别较大，基底剪力比同样条件钢筋混凝土结构要大，这就部分忽视了钢结构的塑性变形耗能在削减地震反应上的作用。构造细节对保证结构延性起着极其重要的作用，针对钢框架刚性连接，对GB50011中不同烈度（或CECS160中的抗震设计类别）分别建议了较严格的梁柱连接形式，使钢结构延性利用得到保证。
[关键词] 基于性能的抗震设计；钢框架；设计地震加速度；设计反应谱；延性；梁柱连接

    Discussion on Seismic Design of Steel Structures
    Chen Xiaofeng¹, Deng kaiguo¹, Hao Jiping²
    (1 China Southwest Architectural Designing and Research Institute, Chengdu 610081, China; 2 Xi' an University of Architect and Technology,  Xi' an, 710055, China)

Abstract: It was compared that some aspects about seismic fortification goals, category of seismic design, design response spectrum, earthquake action and beam - to - column connections between CECS160 and GB50011 in the paper. Earthquake action is approximately the same for reinforced concrete structures between CECS160 and GB50011, but they have the marked differences for steel structures. Conformation details play an important role on ductility of structures, some strict connection forms for different intensity in GB50011 (category of seismic design in CECS160) are proposed for rigid beam - to - column connections which ensure the utilization of ductility in steel structures.
Keywords: performance based seismic design; steel moment frames; design ground acceleration, design response spectrum; ductility; beam-to-column connections