Behaviour of concrete elements under the transversal forces and strengthening with the FRP

Abstract

The behaviour of concrete elements, in this case the beams under the different loadings result with the capacity of section. In analyzing process results are followed with the deflections of beams and the cracks. In this paper we analyse the type, form and dimensions of cracks under the third point load method of applied loads in simple concrete beam. To improve the capacity we use the different types of FRP, including the GFRP and CFRP, comparing the deflections and cracks. The focused parameters are in using the different methods for transversal force , including the primary forms with steel stirrups and the new proposal for using the outside stirrups from FRP. The all analyses presented in this paper are based on the analytical model and experimental results. The behaviour of beams under the mixed form with ordinary steel stirrups and proposal stirrups from FRP, successfully increase the energetic capacity of sections.