Repair of reinforced concrete beams with adhesive Bonded steel plates

Abstract:An investigation of the behaviour of reinforced concrete beams repaired with steel plates at its soffit is presented in this paper. Reinforced concrete beams were preloaded to 85 % of their ultimate capacity and subsequently repaired by bonding steel plates of different widths. Different widths of steel plates were used in order to determine the width-to-thickness ratio that will promote ductile behaviour. It is shown that strengthening of significantly cracked beams by bonding steel plates is possible and beams can be restored to stiffness and strength values superior to those of the original unplated beams