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(蘭州理工大學(xué)土木工程學(xué)院，蘭州 730050)

［摘要］通過引入連接轉(zhuǎn)動剛度及偏心支撐，導(dǎo)出了偏心支撐半剛接鋼框架柱計算長度系數(shù)理論公式。采用ANSYS軟件對D形偏心支撐半剛接鋼框架進行了非線性屈曲分析，得出了偏心支撐半剛接鋼框架柱計算長度系數(shù)表,并回歸了建議計算公式。

［關(guān)鍵詞］半剛接；偏心支撐鋼框架；計算長度系數(shù)；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

國家自然科學(xué)基金項目(50808098)。

作者簡介：王萬禎，博士，副教授，Email：wangwanzhen1975@sina.com。

參考文獻

［1］陳富生，邱國樺，范重. 高層建筑鋼結(jié)構(gòu)設(shè)計［M］. 北京：中國建筑工業(yè)出版社，2005.

［2］陳驥. 鋼結(jié)構(gòu)穩(wěn)定理論設(shè)計［M］.北京：科學(xué)出版社，2001.

［3］王燕，劉慧，郁有升. 無側(cè)移半剛接鋼框架柱考慮剪切變形影響的計算長度系數(shù)研究［J］.工程力學(xué)，2008，25(11)：122-127.