轴压圆钢管混凝土柱有限元分析

nonlinear finite element analysis (FEA) method of circular concrete-filled steel tubular column is introduced by choosing proper material constitutive models for steel tube and concrete. This method is employed to analyze the static behavior of six circular concrete-filled steel tubular columns under axial-compressing loading. In comparison with the testing results, we find that the results of FE analysis agree well with the testing results. This proves the rationality of the FEA model and provides some reference to the future analysis.