Steel tubular-corrugated steel plate confined concrete composite column has been applied in actual project due to its good mechanical properties and fast construction speed. In order to study the axial compression behavior of steel tubular-corrugated steel plate confined concrete composite column, the FE model was established and nonlinear finite element analysis was carried out by using ABAQUS finite element software based on the six completed groups of axial compression tests. Combined with the results of axial compression tests, the reliability and applicability of the FE model were proved from the failure mode of specimens and load-displacement curves of corrugated steel plate. Based on the verified FE model, a large number of parametric analyses were proceeded, which included concrete strength, diameter-width ratio, yield strength of corrugated steel plate and thickness of corrugated steel plate, the influence of different parameters on the bearing capacity, initial stiffness, strength index and ductility of steel tubular-corrugated steel plate confined concrete composite column were explored. The simulation results showed that increasing the material strength would improve the bearing capacity of the specimen, but had little effect on the strength index. Increasing the diameter to width ratio can effectively improve the ultimate bearing capacity, strength index and ductility of the specimen, but the corresponding steel ratio of the specimen will also increase. Increasing the thickness of corrugated steel plate will not improve the bearing capacity of the specimen, but will obviously improve the ductility. Finally, the stability performance of steel tubular-corrugated steel plate confined concrete composite column was analyzed. Based on the comprehensive consideration of the cross-section and material properties of the composite column, the calculation method of slenderness ratio was proposed. By introducing the initial imperfection, the FE models of steel tubular-corrugated steel plate confined concrete composite column with different slenderness ratios were established. The influence of different slenderness ratios on its mechanical mechanism and bearing capacity was studied and the calculation methods of national codes were introduced to compare with the simulation results. The comparison results showed that the design value of the ultimate bearing capacity of steel tubular-corrugated steel plate confined concrete composite column was too large in the existing codes, which could not accurately predict the bearing capacity of the composite column. Thus, the calculation formula of stability coefficient and axial compression capacity of steel tubular-corrugated steel plate confined concrete composite column was modified based on FE simulation results.
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