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     申冬建  陳云霞
    （天津大學(xué)土木系 300072）

[提要] 通過對(duì)不同長細(xì)比、相對(duì)偏心距及荷載角的等肢L形截面雙向偏心受壓柱的非線性全過程計(jì)算機(jī)分析，得出了其承載力和側(cè)向撓度的基本規(guī)律，并提出利用偏心距增大系數(shù)進(jìn)行設(shè)計(jì)的方法。同時(shí)給出了等肢L形截面雙向偏壓柱劃分為長短柱的界限。
[關(guān)鍵詞] 等肢L形截面 雙向偏心受壓柱 長細(xì)比 相對(duì)偏心距 荷載角  偏心距增大系數(shù)

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