Torsional response of FRP ‐strengthened reinforced concrete beams using a modified fixed‐angle softened truss model
This study develops a mechanics‐based fixed‐angle softened‐truss model (FA‐STM‐FRP) to predict the nonlinear torque–twist response of reinforced concrete (RC) beams externally strengthened with fiber‐reinforced polymer (FRP) sheets under pure torsion. The formulation couples Bredt's thin‐walled tube analogy with the...