Finite element analysis of reinforced concrete beams strengthened with prestressed CFRP sheets

摘要

Reinforced concrete beams were analyzed by finite element software ANASYS. Ultimate bearing capacity, the stress state of reinforcing steel bar and deflection of unreinforced beams, reinforced beam with CFRP sheet bonded and reinforced beam with prestressed CFRP sheet bonded were get in the analysis respectively. It shows that the capability of reinforced concrete resisting deformation can be increased with the CFRP sheet bonded. As well as using the prestressed CFRP sheet will get a much better result.