Experimental Study of the Shear Behavior of RC Beams Strengthened with High-Performance Fiber-Reinforced Concrete

Abstract In this study, the efficacy of strengthening reinforced concrete (RC) beams in shear by utilizing high-performance fiber-reinforced (HPFRC) was explored. The achieved epoxy bonding prefabricated HPFRC strips or plates onto beams. were strengthened two different schemes: (i) side (ii) vertical applied at critical sections. behavior configurations compared to non-shear and shear-reinforced RC (HPC) utilized contains 1.5% steel fibers per volume HPC mortar is known as HPFRC. Parameters determined flexural strength compressive mortar. obtained results revealed that realized a 28-day 20 MPa 108 MPa. Moreover, experienced an increased capacity about 50% for 36% with no stirrups. superior those stirrup-reinforced beams, whereas almost identical Also observed, improvement ductility best when employing strips.