Shear strength of steel fiber-reinforced concrete beams

Authors

  • Daniel de Lima Araújo Universidade Federal de Goiás Author
  • Fernanda Gabrielle Tibúrcio Nunes Universidade Federal de Goiás Author
  • Romildo Dias Toledo Filho Universidade Federal do Rio de Janeiro Author
  • Moacir Alexandre Souza de Andrade Furnas Centrais Elétrica Author

DOI:

https://doi.org/10.4025/actascitechnol.v36i3.19005

Keywords:

empirical models, cracking, transverse reinforcement reduction

Abstract

This study analyzed the mechanical behavior of shear strength of steel fiber-reinforced concrete beams. Six beams subjected to shear loading were tested until failure. Additionally, prisms were tested to evaluate fiber contribution to the concrete shear strength. Steel fibers were straight, hook-ended,35 mmlong and aspect ratio equal to 65. Volumetric fractions used were 1.0 and 2.0%. The results demonstrated a great contribution from steel fibers to shear strength of reinforced concrete beams and to reduce crack width, which can reduce the amount of stirrups in reinforced concrete structures. Beam capacity was also evaluated by empirical equations, and it was found that these equations provided a high variability, while some of them have not properly predicted the ultimate shear strength of the steel fiber-reinforced concrete beams.

 

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Author Biographies

  • Daniel de Lima Araújo, Universidade Federal de Goiás
    He received his MS and PhD in civil engineering from the University of São Paulo, Brazil, in 1997 and 2002, respectively
  • Fernanda Gabrielle Tibúrcio Nunes, Universidade Federal de Goiás
    She received her MS in Civil Engineering from the Federal University of Goiás, Brazil, in 2007
  • Romildo Dias Toledo Filho, Universidade Federal do Rio de Janeiro
    He received his MS and PhD in civil engineering from the Pontifical Catholic University of Rio de Janeiro, Brazil, in 1986 and 1997, respectively.

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Published

2014-02-26

Issue

Vol. 36 No. 3 (2014)

Section

Civil Engineering

License

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I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. 

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

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How to Cite

Araújo, D. de L., Nunes, F. G. T., Toledo Filho, R. D., & Andrade, M. A. S. de. (2014). Shear strength of steel fiber-reinforced concrete beams. Acta Scientiarum. Technology, 36(3), 389-397. https://doi.org/10.4025/actascitechnol.v36i3.19005

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