Analytical deformation characteristics and shear capacity of SRC-RC transfer columns

Abstract In a steel reinforced concrete-reinforced concrete, SRC-RC, transfer column, the steel is truncated, and this leads to distortion of the internal force transmission. According to the internal force and deformation characteristics of transfer column, the location of the inflection point was studied. Then, the shear capacity of transfer column was investigated, and the results were compared with experimental results in references. The finite element model of SRC-RC transfer column was developed by ABAQUS, considering the effect of different confinement around concrete. The model has been validated against published experimental results. Finally, parametric studies were performed to evaluate the security and rationality of the shear capacity formula in Chinese code by FEM. The results indicated that the shear capacity calculated by the existing specification is unsafe, and a modified formula was proposed by considering the internal force and deformation characteristics of transfer column.