| In this research， experimental study was carried out for investigating the retro?t effects in case of using reinforced concrete (RC) jacketing for upgrading ?exural strength and ductility of RC bridge pier that cut-off sections of reinforcement were already retro?tted with FRP sheet jacketing or steel jacketing in the ?rst stage of the seismic retro?t strategy. Two RC pier specimens with different height of RC jacket were tested under cyclic loading test method. The in?uences of the height of RC jacket on failure behavior and load-carrying capacity of RC pier were con?rmed based on the test results. It is concluded that the specimen with the height of RC jacket as four times of the width of column cross section provided well retro?t effects. |
