- 摘 要
-
（1 遼東學(xué)院 丹東 118003；2 大連理工大學(xué) 116023）
【提要】 根據(jù)截面力的平衡和變形協(xié)調(diào)原理,采用數(shù)值積分方法,編寫了計算程序,計算各種參數(shù)下圓（環(huán)）形截面柱大小偏心受壓的軸壓比限值，分析了各種參數(shù)對軸壓比限值的影響，回歸出圓（環(huán)）形柱軸壓比限值的簡化公式。經(jīng)算例驗證，簡化公式與數(shù)值積分給出的結(jié)果符合較好。
【關(guān)鍵詞】 鋼筋混凝土柱 圓形截面 環(huán)形截面 軸壓比限值 M-N相互作用曲線
Simple Computational Method of Limited Value of Axial Compression Ratio for Reinforced Concrete Circular and Ring Columns/Yu Junrong1, Huang Chengkui2 (1 Eastern Liaoning University, Dandong 118003, China; 2 Dalian University of Technology, Dalian 116023, China)
Abstract:Based on the principles of force balance and deformation harmony, a numerical in
tegral program was compiled for the reinforced concrete columns with circular and ring sections.The limited values of axial compression ratio with the different parameters under the eccentric compression were calculated. The simple computational formulas for limited values circular and ring columns were regressed. The examples show that the results calculated by the simple computational formulas accord with those calculated by the numerical integral method.
Keywords:RC columns； circular section； ring section； limited value; axial compression ratio； M-Ninteractive curve
