The Comparison between Using Multilayers of High Resistance GFRP on Ductility with Multilayers of High Resistance CFRP

Externally Bonded Reinforcement on Grooves (EBROG) is a new promising method that has been introduced at Isfahan University of Technology (IUT) to postpone or eliminatedebonding of FRP sheets from concrete surface in concrete beams strengthened for flexure. Experiments have shown that the probability of debonding when attached to concretesubstrate using EBROG method is much lower than the other methods ; and in some cases debonding is completely eliminated . The aim of the current study is to examine the efficacyof Externally Bonded Reinforcement on Grooves method on Concrete beams' ductility when used under multilayers of high resistance GGFRP sheet analytical and comparing itwith the results of multilayers of high resistance CFRP. For this purpose , beam specimens with dimension 120*140*1000 mm were modeled in ABAQUS program. According to theanalysis, ductility is increased when used multilayers of high resistance AFRP instead of using multilayers of high resistance CFRP.

Keywords:

High Resistance Aramid and Glass Fiber Reinforced Polymer (GFRP & CFRP) , strengthening , Externally Bonded Reinforcement on Grooves (EBROG) , ductility , ABAQUS program