Abstract
Natural fibres (straw, chip, horse tail, goat hair and plume, etc.), was being used from ancient time for construction purposes. Inspired from ancient time, artificial fibres (vitreous, synthetic, carbon and steel fibre, etc.) are commonly used nowadays in order to improve the mechanical properties of concrete.
Literature has suggested that concrete matrix with steel fibre commonly known as Steel fibre reinforced concrete (SFRC) have enhanced flexural as well as shear behaviour as compared to conventional reinforced concrete (RC). Also it is recommended by ACI building code that steel fibre can use as minimum shear reinforcement in RC beams. In the present study, the experimental results for assessment of ACI building code provisions allowing the use of deformed steel fibres as minimum shear reinforcement in RC beams are presented. Hooked end steel fibres of length 35 mm and 60 mm have been used in concrete matrices at volume fraction of fibres ranges from 0.75 to 1.5% and 0.5 to 1% respectively. The experimental performance of the fibrous concrete beams has been compared with the Indian Standard and ACI codal provisions. It is found that in all the cases, even though at a volume fraction of 0.5%, lower than the ACI code-specified lower limit of 0.75%, the measured shear strengths were higher than the predicted values as per the ACI building code, Indian standard code, as well as from the lower bound value of 0.3√fc′MPa (3.5√fc′ psi). Also confirmed multiple diagonal cracking having crack width lower than the specified permissible values. On the basis, it is suggested that there is a need of relook into codal provisions of ACI.
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References
Narayanan, R., Darwish, I.Y.S.: Use of steel fibers as shear reinforcement. ACI Struct. J. 84(3), 216–227 (1987)
Altoubat, S., Yazdanbakhsh, A., Rieder, K.A.: Shear behaviour of macro-synthetic fiber-reinforced concrete beams without stirrups. ACI Struct. J. 106(4), 381–389 (2009)
Dinh, H.H., Parra-Montesinos, G.J., Wight, J.K.: Shear behaviour of steel fibre-reinforced concrete beams without stirrup reinforcement. ACI Struct. J. 107(5), 597–606 (2010)
Kwak, Y.-K., Eberhard, M.O., Kim, W.-S., Kim, J.: Shear strength of steel fiber-reinforced concrete beams without stirrups. ACI Struct. J. 99(4), 530–538 (2002)
Batson, G.B., Jenkins, E., Spatney, R.: Steel fibers as shear reinforcement in beams. ACI J. Proc. 69(10), 640–644 (1972)
Dupont, D., Vandewalle, L.: Shear capacity of concrete beams containing longitudinal reinforcement and steel fibers. In: Banthia, N., Criswell, M., Tatnall, P., Folliard, K. (eds.) Innovations in Fiber Reinforced Concrete for Value, SP-216, pp. 79–94. American Concrete Institute, Farmington Hills (2003)
Li, V., Ward, R., Hamza, A.M.: Steel and synthetic fibers as shear reinforcement. ACI Mater. J. 89(5), 499–508 (1992)
ACI Committee 318: Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (318R-14). American Concrete Institute, p. 503. Farmington Hills, Michigan (2014)
IS 456: Indian Standard Plain and Reinforced Concrete – Code of Practice,‖ Fourth Revision. Bureau of Indian Standards, BIS, New Delhi, 100 p. (2000)
BSI: EN 1992-1-1:2004. Eurocode 2: Design of concrete structures. Part 1-1: General rules and rules for buildings. BSI, London (2004)
Dinh, H.H., Parra-Montesinos, G.J., Wight, J.K.: Shear strength model for steel fiber reinforced concrete beams without stirrup reinforcement. J. Struct. Eng. ASCE 137(10), 1039–1051 (2011)
Parra-Montesinos, G.J.: Shear strength of beams with deformed steel fibers. Concr. Int. 28(11), 57–66 (2006)
ACI: ACI 318R-08: Building code requirements for structural concrete and commentary. ACI, Farmington Hills (2008)
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Jain, K., Negi, B.S. (2021). Assesment of Codal Provision for SFRC Beam in Minimum Shear. In: Serna, P., Llano-Torre, A., Martí-Vargas, J.R., Navarro-Gregori, J. (eds) Fibre Reinforced Concrete: Improvements and Innovations. BEFIB 2020. RILEM Bookseries, vol 30. Springer, Cham. https://doi.org/10.1007/978-3-030-58482-5_70
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DOI: https://doi.org/10.1007/978-3-030-58482-5_70
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