Experimental Study on Flexural Behavior of RC Beams Strengthened with SMPM

Abstract eng:
Rehabilitation with SMPM (high-strength steel wire mesh and polymer mortar) is a new technique of structural strengthening with a series of obvious advantages comparing with other traditional ones. Experiments were conducted to investigate the flexural behavior of 5 RC beams including 4 strengthened specimens and 1 comparative beam. The mode of failure, cracking behavior, stress of reinforced bars and steel wires, load versus deflection curves and ultimate load-carrying capacity of the strengthened specimens were analyzed. The results showed that the strengthened beams have good strengthening effect and the working behavior of the two sections is excellent. Based on the tests and numerical simulation results, the design formulae of the flexural load-carrying capacity and stiffness were supposed. The calculated results are in good agreement with the experimental ones. SMPM, high-strength steel wire mesh, polymer mortar, Flexural Strengthening, Experimental study

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