中文摘要：

利用混凝土的边界面模型和钢材的弹塑性模型，建立了自应力钢管混凝土轴压短柱的三维有限元模型并分析了自应力钢管混凝土轴压短柱的力学性能，计算结果和试验结果吻合较好．计算结果表明，由于自应力的影响，自应力铜管混凝土轴压短柱的承载力要高于普通铜管混凝土短柱，并且承载力随着自应力的增加而增加；自应力的变化并不能改变轴压构件载荷－应变曲线的变化趋势；含钢率不但对轴压构件的承载力有重要影响，而且是影响载荷－变形曲线变化趋势的主要因素．

英文摘要：

Based on a bounding surface model of the concrete and elastic - plasticity constitutive relations of steel, the finite element model of the self- stressing concrete filled steel tube short column is established and the mechanical performance is analyzed. The calculated results is consistence with test results. The results indicate that the self- stressing concrete - filled steel tube short column has higher carrying capacity than common concrete - filled steel tube short column due to self- stress. The carrying capacity of self- stressing concrete - filled steel tube short column increases with increasing self - stress. Steel ratio of the specimen is the principal factor which affects the shape of the load - strain curve.