The purpose of this study is to clarify the seismic behavior of precast concrete walls reinforced with SBPDN rebars, which are ultra-high strength rebars with low bond strength. Four precast wall specimens were designed and fabricated with the axial load ratio and construction method (cast-in-site and precast) as experimental variables. These walls were tested under reversed cyclic lateral load and constant axial force to investigate the seismic performance of the precast walls. Test results have indicated that housing each SBPDN rebar separately in the sheath duct could prevent the pulling-out of the SBPDN rebars at large drift, and ensuring precast walls as high drift-hardening capability as the cast-in-site walls. Analytical method is also presented to evaluate cyclic response of concrete walls with SBPDN rebars, cast-in-site and precast, and the theoretical predictions exhibited fairly good agreement with the test results.
