The impact resistant capacity of the reinforced concrete (RC) beams may be increased by flattening the high intensity impact force. In this paper, the impact resistant behavior of the cushion rubber set AFRP-sheet strengthened RC beams which reach ultimate state with sheet failure was investigated conducting drop-weight impact test loading with varying thickness of the cushion rubber. The results obtained from this study were as follows: the primary peak impact force can be decreased by less than approximately one-fifth; however, dynamic behavior of the beams may be similar irrespective of with/without setting the cushion rubber because of similarity of those impulses; and sheet fracture can be effectively restrained by setting the cushion rubber in the case of increasing input impact energy.
