DOI QR코드

DOI QR Code

Generalization of shear truss model to the case of SFRC beams with stirrups

  • 투고 : 2010.09.23
  • 심사 : 2011.05.02
  • 발행 : 2012.03.25

초록

A theoretical model for shear strength evaluation of fibrous concrete beams reinforced with stirrups is proposed. The formulation is founded on the theory of plasticity and the stress field concepts, generalizing a known plastic model for calculating the bearing capacity of reinforced concrete beams, to the case of fibrous concrete. The beneficial effect of steel fibres is estimated taking into account the residual tensile strength of fibrous concrete, by modifying an analytical constitutive law which presents a plastic plateau as a post-peak branch. Around fifty results of experimental tests carried out on steel fibrous concrete beams available in the literature were collected, and a comparison of shear strength estimation provided by other semi-empirical models is performed, proving that the numerical values obtained with the proposed model are in very good agreement with the experimental results.

키워드

참고문헌

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  14. Fast classification of fibres for concrete based on multivariate statistics vol.20, pp.1, 2012, https://doi.org/10.12989/cac.2017.20.1.023
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  16. Flexural analysis of steel fibre-reinforced concrete members vol.22, pp.1, 2012, https://doi.org/10.12989/cac.2018.22.1.011
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  20. Effect of Steel Fibers on the Hysteretic Performance of Concrete Beams with Steel Reinforcement—Tests and Analysis vol.13, pp.13, 2020, https://doi.org/10.3390/ma13132923
  21. Probabilistic Studies on the Shear Strength of Slender Steel Fiber Reinforced Concrete Structures vol.10, pp.19, 2012, https://doi.org/10.3390/app10196955
  22. Shear capacity prediction of slender reinforced concrete structures with steel fibers using machine learning vol.227, pp.None, 2012, https://doi.org/10.1016/j.engstruct.2020.111470
  23. Seismic Performance of Steel Fiber Reinforced High-Strength Concrete Beam-Column Joints vol.14, pp.12, 2012, https://doi.org/10.3390/ma14123235
  24. Influence of axial force and corrosion on failure of prestressed concrete structures considering M-V interaction vol.242, pp.None, 2012, https://doi.org/10.1016/j.engstruct.2021.112552