Study on the capacity of concrete-filled square tubular column to steel beam connections with anchorages

摘要

Three specimens of Concrete-Filled Square Tubular (CFST) with Anchorages had been tested under low-cyclic reversed loading at the end of column to research the strength, failure modes, ductility, energy dissipation behavior and so on. The experimental results demonstrate that all specimens developed plastic hinges at the end of beams and provided superior seismic resistance in strength, stiffness, ductility and energy dissipation capacity. The FEM (Finite Element Method) software ANSYS was used to analyze the influences on specimens capacities with different axial compression force ratios and concrete strength.