- 摘 要
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盧偉煌 （福建省建筑設(shè)計研究院 福州 350001）
[提要] 基于破壞曲面的等軸力相關(guān)曲線，提出了鋼筋混凝土雙向偏心受壓矩形截面直接設(shè)計方法。有限元分析和數(shù)學(xué)回歸表明等軸力相關(guān)曲線方程可靠，根據(jù)該方程，可把鋼筋混凝土雙向偏心受壓矩形截面配筋設(shè)計轉(zhuǎn)化為單向偏心受壓矩形截面配筋設(shè)計。從算例中可看出，方法簡單、實(shí)用、可靠，可供設(shè)計時參考。
[關(guān)鍵詞] 鋼筋混凝土 雙向偏心受壓 強(qiáng)度計算The direct design method is put forward for reinforced concrete rectangle section with biaxial loads. This method is on the basis of curved surface of destroyed member, the related curved line for equal axial force is deduced by finite element interative method and mathematics regress, then section design of steel bar for biaxial load is transformed to section design of steel bar for one-axial load with the related curved line for equal axial force.This method is simple, prac tical and reliable form the calculation results compared with finite element interative method.
Keywords: reinforced concrete; biaxial load; strength calculation
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