(兰州理工大学土木工程学院，兰州 730050)

［摘要］通过引入连接转动刚度及偏心支撑，导出了偏心支撑半刚接钢框架柱计算长度系数理论公式。采用ANSYS软件对D形偏心支撑半刚接钢框架进行了非线性屈曲分析，得出了偏心支撑半刚接钢框架柱计算长度系数表,并回归了建议计算公式。

［关键词］半刚接；偏心支撑钢框架；计算长度系数；屈曲分析

Effective length factor of column in eccentrically braced steel frames with semi-rigid connections

Wang Wanzhen, Guo Jinchi, Sun Yuping, Dang Xinghai(School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

Abstract:The critical factor formulas, which are applicable to eccentrically braced steel frames, were derived by considering relative rotational stiffness of beam-column connections. Finite element models of steel frames with semi-rigid connections were established using ANSYS. Through buckling analysis of eccentrically braced steel frames with semi-rigid connections, the effective length factor of column was derived. The regression equation, which is fit for braced steel frames with semi-rigid connections, was gained.

Keywords:semi-rigid connections; eccentrically braced steel frames; effective length factor; buckling analysis

国家自然科学基金项目(50808098)。

作者简介：王万祯，博士，副教授，Email：wangwanzhen1975@sina.com。

参考文献

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