The phenomenon of shear failure in reinforced concrete members is complex. For shear strengthening of reinforced concrete T-beam, fibre-reinforced plastic (FRP) may be provided in the form of bonded external FRP sheets or strips as web reinforcement. The use of FRP as external web reinforcement for strengthening of beams in shear introduces two additional failure modes: FRP rupture and FRP debonding. These generate additional levels of complexity to the failure behaviour of such beams. In the present study, the characteristics of shear deficient reinforced concrete T-beam retrofitted with FRP...