Finite element analysis demonstrates improved flexural performance in strengthened reinforced concrete beams, suggesting enhanced design methodologies.
In this paper, the ABAQUS finite element numerical simulation method is applied. The flexural behavior of Reinforced Concrete (RC) beams strengthened with Basalt Rebar Reinforced Concrete (BRRC) was investigated. The numerical analysis of the existing tests verifies the correctness of the material constitutive model and the accuracy of the model’s establishment. Based on this foundation, a total of eight reinforced beams were created, and the effects of beam length, anchorage length of BFRP bars, and the level of prestress on the flexural performance of these beams were investigated. The research shows that when the anchorage length is 15 mm, the anchorage end will not peel off from the beam body. With the application of prestress and the increase of the prestress degree, the beam’s cracking load, yield load, and ultimate load have been enhanced to some degree. For different beam lengths, the bearing capacity is significantly improved. As the beam length increases, the reinforcement effect will be reduced to a certain extent. The simulated ultimate load value of the model is in good agreement with the theoretical value, indicating that it provides a good reference value for the finite element analysis of BRRC reinforced RC beams.
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Ma et al. (2025) studied this question.
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