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通过建立有限元分析模型,从空心率、钢管强度、混凝土强度等方面,分析了影响复式钢管混凝土轴压承载力的主要因素,并提出了轴压承载力计算公式,发现由公式得出的承载力与有限元分析值及试验值吻合较好。
Through the establishment of the finite element analysis model, the main factors influencing the bearing capacity of CFST under axial load were analyzed from the aspects of hollow rate, strength of steel pipe and concrete strength. The bearing capacity formula of axial compression was proposed and found that the bearing capacity The force is in good agreement with the experimental value and finite element analysis.