|
چکیده
|
In recent decades, the externally bonded reinforcement (EBR) method has been recognized as a desirable and established choice to strengthen reinforced concrete (RC) structures with ,ber-reinforced polymer (FRP) composites. The major weakness of this method is the premature debonding of FRP composites from concrete substrates. The grooving method (GM) has been introduced to prevent or postpone premature debonding. This study aims to review the previous studies on strengthening structural members by the grooving method. More speci,cally, it sought to examine the studies addressing the behaviors of strengthened beams, slabs, columns, and beam-column joints with FRP composites by grooving methods. The effects of groove dimensions as well as the properties of concrete and FRP materials on the performance of the grooving method were evaluated. The enhancements of 5exural, shear, compressive, and seismic behaviors of strengthened RC members by grooving method were assessed and their ef,ciency was compared with the EBR method. The results showed the considerable ef,ciency of the grooving method in enhancing the performance of all structural concrete members by postponing or preventing premature debonding. Additionally, this method could considerably decrease the amount of consumed material.
|