Seismic Behavior of Two-Story Shear Wall with Concrete Filled Steel Tube Columns

Abstract

To investigate the seismic behavior of concrete filled steel tube columns precast shear walls, a study of 3 specimens failure cases were conducted in Quasi-static loading. The shear walls were designed in 1/3 scaled, and grouted sleeve connection detail were applied in steel tubular joints. The failure pattern, the hysteretic behavior, ductility and the energy dissipating capacity were discussed under different axial compression ratios. The results show: The failure mode is similar that steel tubular joints brittle failure occur. The hysteretic curve plumpness and energy dissipating capacities are strong. The ductility coefficient range from 1.6~2.5 and the deformation performance decreases with the increase of axial compression ratios. The yield strength in substituted for the ultimate strength in steel tubular joints design.