钢筋混凝土圆形截面偏心受压围套加固构件极限承载力分析

Bearing Capacity of RC Column with Circular Section Strengthened by Enclosure under Eccentric Compression

加固结构为两阶段受力 ,按平截面变形假定 ,对钢筋混凝土圆形截面偏心受压围套加固构件两阶段加载的受力进行分析 ,建立了极限承载力计算公式 ,并给出算例 ,可供旧桥加固设计参考。

Based on assuming that RC column with circular section has linear variation in strain, the calculating formulas of the bearing capacity of the RC column with circular section strengthened by enclosure under eccentric compression are proposed through analyzing the mechanical characteristic of the reinforcement structure which is loaded at two stages. A calculating example is presented.