Evaluation of energy retention capacity of composite CFRP and GFRP in RC beam strength

Energy dissipation capacity and ductility are two significant parameters to improve structural performance in construction. Although there are many traditional methods of strengthening studies of beams are strengthened with fiber polymers draw attention, especially in recent years. In this study, the strengthening of the beams by the externally bonded reinforcing (EBR) method are investigated. The current studies in the literature are comprehensively reviewed and significant results have been presented. The energy dissipation capacities and ductility values of the important forty CFRP-GFRP beam strengthening studies of the last 10 years have been determined as nearly value based on the load-deflection graphs. The results are given in the table, and the accuracy hypothesis of the mean values of the two groups are statistically made with usage of the T-test. The values were chosen from within the acceptable range to increase the accuracy of the T-test. The average of the selected ultimate load values is very close to each other, CFRPs have also slightly higher load carrying capacity than GFRPs. When it comes to ductility analysis with T-test, it is seen that GFRPs have higher ductility values.