（1 北京建筑工程学院工程结构与新材料北京高等学校工程研究中心， 北京 100044；2 北京建筑工程学院， 北京 100044）

[摘要]提出了带有端板连接的可替换式耗能梁段的新型偏心支撑结构体系，并且基于ABAQUS有限元分析软件建立了一个带有端板连接的可替换式耗能梁段的单层偏心支撑钢框架有限元模型，研究了这种可替换式偏心支撑钢框架在循环荷载作用下的抗震性能与耗能能力,结果表明可替换式耗能梁段偏心支撑钢框架结构具有较好的耗能能力。

[关键词] 可替换式耗能梁段;偏心支撑钢框架;端板连接;滞回曲线;等效粘滞阻尼系数;ABAQUS有限元分析

中图分类号：TU398.7        文献标识码：A         文章编号：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