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（1 北京建筑工程學(xué)院工程結(jié)構(gòu)與新材料北京高等學(xué)校工程研究中心， 北京 100044；2 北京建筑工程學(xué)院， 北京 100044）

[摘要]提出了帶有端板連接的可替換式耗能梁段的新型偏心支撐結(jié)構(gòu)體系，并且基于ABAQUS有限元分析軟件建立了一個(gè)帶有端板連接的可替換式耗能梁段的單層偏心支撐鋼框架有限元模型，研究了這種可替換式偏心支撐鋼框架在循環(huán)荷載作用下的抗震性能與耗能能力,結(jié)果表明可替換式耗能梁段偏心支撐鋼框架結(jié)構(gòu)具有較好的耗能能力。

[關(guān)鍵詞] 可替換式耗能梁段;偏心支撐鋼框架;端板連接;滯回曲線;等效粘滯阻尼系數(shù);ABAQUS有限元分析

中圖分類號(hào)：TU398.7        文獻(xiàn)標(biāo)識(shí)碼：A         文章編號(hào)：1002-848X(2013)S1-1433-04 

Numerical analysis on end-plate connected replaceable shear links for eccentrically braced steel frames under cyclic loading

Liu Xiao², Zhao Chiyun^1,2

(1 Beijing University of Civil Engineering and Architecture, Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing 100044,China; 2 Beijing University of Civil Engineering and Architecture, Beijing 100044, China)

Abstract: This paper proposed a new type eccentrically braced structural system in which a replaceable shear link specimen was connected to floor beam by end-plate. The finite element model of a one-story eccentrically braced steel frame with an end-plate connected replaceable link specimen was established by software ABAQUS. The seismic performance and energy dissipation of the new type eccentrically braced steel frame under the cyclic loading was analyzed. The numerical results showed that the new type eccentrically braced steel frame with replaceable shear link has better energy dissipation capacity under earthquake load.

Keywords：replaceable link specimen; eccentrically braced steel frames; end-plate connection; hysteretic curve; the equivalent viscous damping coefficient; software ABAQUS