Abstract
The use of randomly distributed and discrete steel fibers in concrete (SFRC) offers better resistance to early crack growth and possesses better post peak strain capacity. The crack bridging effect of steel fiber due to the fiber matrix interaction reduces the rate of crack growth and restricts spalling of concrete which improves the toughness characteristics. The deployment of SFRC in RC beams, columns and beam-column joints improves the shear resistance by acting as secondary shear reinforcement along with the optimum conventional confining reinforcement. The ductility enhancement and damping properties of SFRC becomes an effective solution for enhancing the seismic resistance of structural member. The shear resistance capacity of SFRC elements is mainly controlled by the volume of fiber, profile and steel fiber aspect ratio. Many studies have been conducted to examine the shear strength of RC beams with SFRC and empirical models have been proposed to estimate the contribution of steel fiber in shear resistance. This research article summarizes the different empirical models in shear strength evaluation of SFRC beams with and without stirrups.
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