Crack and Deflection Research of R.C. Beams Bonded with Steel Plate under the Opposite Side Loading Condition

This paper describes the test of six reinforced concrete (R.C.) beams strengthened by epoxy-bonded plate under the opposite side loading condition and the ordinary condition. The data of the developing crack, and the deflection of beams are experimentally obtained. At the same time, the maximum crack width and the deflection are calculated through theoretical analysis. It analyzes the deflection and the crack developing fact of Strengthened beam on the two different conditions and draws a conclusion that R.C. beam of opposite side loading Strengthened by Epoxy-0bonded plate condition have many advantages, such as improving the stiffness and lessoning the crack width and so on. It shows that this method can get a satisfied strengthening effect.