基于弹性徐变理论和线性叠加原理,研究了对称配筋的钢筋混凝土偏心受压柱中,钢筋和混凝土的应力-应变增量关系和递推公式;并且通过数值方法计算了考虑加、卸载后钢筋和混凝土应力-应变的变化过程;同时,分析了偏心距、配筋率、加载龄期及卸载时间等因素对长期荷载下钢筋混凝土偏心受压柱徐变特性和卸载后混凝土应力的影响规律.研究成果可为长期荷载下钢筋混凝土偏心受压构件的设计提供参考. Based on the theory of elastic creep and the principle of linear superposition, the stress-strain increment relationship and recursion formula of steel bar and concrete in symmetrical reinforced eccentric loaded columns are studied. And by numerical calculation, At the same time, the influence of eccentricity, reinforcement ratio, loading age and unloading time on the creep behavior of eccentric loaded column under cyclic loading and stress after unloading were analyzed The research results can provide references for the design of eccentric compression members of reinforced concrete under long - term loads.