申冬建  陈云霞
    （天津大学土木系 300072）

[提要] 通过对不同长细比、相对偏心距及荷载角的等肢L形截面双向偏心受压柱的非线性全过程计算机分析，得出了其承载力和侧向挠度的基本规律，并提出利用偏心距增大系数进行设计的方法。同时给出了等肢L形截面双向偏压柱划分为长短柱的界限。
[关键词] 等肢L形截面 双向偏心受压柱 长细比 相对偏心距 荷载角  偏心距增大系数

Based on the nonlinear analysis of complete response process for L-shaped R.C. columns with equal legs subjected to biaxially eccentric loading, the general behavior of columns for different slenderness ratios, eccentricity ratios and loading angels is investigated. On this basis a design procedure using eccentricity magnification factor is proposed, also, the classification bound for short and slender L-shaped R.C. columns with equal Iegs under biaxial bending is presented.
Keywords: L-shaped R.C:.columns; biaxial eccentric loads; nonlinear analysis; complete response process; slenderness ratio; eccentricity ratio; eccentricity magnification factor