Simulation Analysis On Bonded Behavior Of The Pretressed Rc-Concrete Hollow Slab Strengthened With CFRP Boards

This article introduces the significance of Simulation Analysis and the development of the technical of Concrete Members strengthened with CFRP sheet firstly, Then beginning from Concrete destructive patterns and Failure surface, discusses the strain-stress relationship and concrete damage criteria of concrete materials,Solution of the nonlinear equation,Convergence criteria and so on detailed. Then, two Non-liner Finite Element analysis, reinforced concrete hollow slabs strengthened with CFRP plate and reinforced concrete beams under load history influence strengthened with CFRP cloth , are simulated full in ANSYS. This article introduced the whole process of the two simulation analysis detailed, specially emphasis research on model establishment, mesh demarcate, parameter selection ,element type boundary disposal, loading ways, solution methods, convergence criterion, and stress-strain relationship of the Materials.Finally , through comparing the simulation analysis result and the test result. We can obtain that the simulation method used in analyzing prestressed reinforced concrete component strengthened with the carbon fiber cloth reinforcement is reliability. The result of this paper has the reference value to structure strengthening engineers and researchers in reinforced concrete and prestressed concrete.