Analytical study of the section of the rc beams strengthened for flexure with FRP materials

Strengthening of concrete structures is applied as a solution for various deterioration problems in civil engineering practice. This paper presents an analytical study the behaviour cross-section reinforced (RC) beam, strengthened flexure with fiber polymer (FRP) materials. Using balance internal forces cross section through all phases stress which passes, program was written MATLsoftware, execution produced curve dependence between bending moment and curvature, one most important indicators behaviour. The parameters varied this are amount type FRP reinforcement obtained results indicate significant influence additional both on yielding ultimate moment, stiffness section.