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    陳小峰¹，鄧開國¹，郝際平²
    (1 中國建筑西南設(shè)計(jì)研究院有限公司，成都610081; 2 西安建筑科技大學(xué)土木工程學(xué)院，西安710055)

[摘要] 在抗震設(shè)防目標(biāo)、抗震設(shè)計(jì)類別、設(shè)計(jì)反應(yīng)譜、地震作用取值和梁柱連接等方面對(duì)CECS160和GB50011進(jìn)行了分析比較。CECS160和GB50011對(duì)鋼筋混凝土結(jié)構(gòu)地震作用取值基本相同，而兩者對(duì)鋼結(jié)構(gòu)地震作用的取值差別較大，基底剪力比同樣條件鋼筋混凝土結(jié)構(gòu)要大，這就部分忽視了鋼結(jié)構(gòu)的塑性變形耗能在削減地震反應(yīng)上的作用。構(gòu)造細(xì)節(jié)對(duì)保證結(jié)構(gòu)延性起著極其重要的作用，針對(duì)鋼框架剛性連接，對(duì)GB50011中不同烈度（或CECS160中的抗震設(shè)計(jì)類別）分別建議了較嚴(yán)格的梁柱連接形式，使鋼結(jié)構(gòu)延性利用得到保證。
[關(guān)鍵詞] 基于性能的抗震設(shè)計(jì)；鋼框架；設(shè)計(jì)地震加速度；設(shè)計(jì)反應(yīng)譜；延性；梁柱連接

    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