Finite Element Model on Circular Concrete-encased CFST Columns under Compression and Torsion

摘要

A three-dimensional (3D) finite element model (FEM) of circular concrete-encased CFST columns under axial compression and torsion was developed using the general finite element analysis (FEA) software ABAQUS. A total of 10 specimens with different axial load level and CFST ratio were tested to verify the FEM. The comparison of the finite element predictions and the tests performed showed a reasonable agreement. The FEM was thus used to conduct the full range analysis and parametric analysis.