Predicting shear strength of steel fiber reinforced concrete beam-column joints by modified compression field theory

Zhang, Luyang; Yao, Jitao; Hu, Yukun; Gao, Jun; Cheng, Zhengjie

doi:10.1016/j.istruc.2022.05.072

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…Even the more complex structural analysis results are ideal, and it is also suitable for steel-fiberreinforced concrete structures [18,19]. Gao et al [20] and Zhang et al [21], Zhu et al [22], Lei et al [23], used MCFT to study the shear capacity of reinforced steel-fiber concrete beam-column joints, steel-fiber high-strength concrete two-pile cap, and hybrid concrete deep beams, respectively. The results showed that the predicted shear strength is in good agreement with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Shear Bearing Capacity Prediction of Steel-Fiber-Reinforced High-Strength Concrete Corbels on Modified Compression Field Theory

Li,

Zheng,

2024

Buildings

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In order to analyze the shear mechanism of the steel-fiber high-strength concrete corbels, a calculation model for the shear bearing capacity of steel-fiber-reinforced high-strength concrete corbels was proposed based on the modified compression field theory. Considering the existence of residual tensile stress in steel-fiber-reinforced concrete at crack locations, the cracked steel-fiber-reinforced concrete was treated as a continuous material. The constitutive relation of cracked steel-fiber-reinforced concrete and the local stress equilibrium equation were modified. It was compared with the results of 34 steel-fiber high-strength concrete corbels, including those in this paper. The predicted results were compared with the experimental values and the predictions of the Fattuhi model, Campione model, and Russo model to validate the rationality of the proposed model. The results revealed that the mean value between the experimental values and the predicted results of the proposed model is 1.104, with a variance of 0.003, showing good agreement. The proposed model can accurately predict the shear bearing capacity of steel-fiber-reinforced high-strength concrete corbels.

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