Study on the shear behavior of RC deep beam strengthening by FRP

Abstract

The development of tall building requires better design of deep beam. Blindly increasing the section size and the amount of bar are not the best way. Along with the development of the reinforcement of FRP, combining the reinforcement of FRP with the deep beam is perhaps a good method. The main standpoints of this task are: Reinforcement of FRP, CFRP and GFRP are more than BFRP, but the price of CFRP is much higher, the endurance of GFRP is bad at alkaline environment, and the comprehensive performance of BFRP is well; Reinforcement of FRP in beams, Reinforcement for shearing are more than reinforcement for bending, Shallow beam are more than deep beam. Reinforcement for shearing of deep beam are much less; The theory of deep beam's calculation, STM method must replace the traditional method which bases on half-experience and half-theory; Reinforcement for shearing of deep beam using FRP should include examination, theoretic analysis and simulation analysis 3 aspects. © the authors.