Study on axial behavior of steel-concrete composite columns with stud connectors

After axial compression tests on two different composite columns with stud connectors, a finite element analysis (FEA) was constructed to make a comparison with the result of tests. The tests showed that both of the specimens had good bearing capacities and wavelength of the local buckling steel plate was restrained by the stud connectors effectively. The results of FEA revealed that the column with single skin enjoyed a higher capacity than the one with double skin due to the reinforcement inside. On the other hand, it can be inferred that both of the load-displacement relationship and reasonable failure modes can be obtained by FEA.