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SHEAR STRENGTH OF REINFORCED CONCRETE BEAM WITH STEEL FIBER

Shuhsuke HARADA, Junichiro Niwa, Hajime Okamura

Abstract

This research work was intended to clarify the effects of steel fiber by way of shear reinforcement and furthermore to formulate equation of shear strength for design, considering the case of applying it to reinforced concrete structual member. Several testes of beam specimens were carried out so as to obtain fundamental informations regarding ultimate shear strength and shear failure mode. Based on test results, mechanism of shear resistance has been considered from macroscopic viewpoint, comparing with a case of normal reinforced concrete beam without web reinforcement. In consequence, experimental equation of shear strength, evaluating effects of steel fiber on shear reinforcement in terms of volume contents of steel fiber, has been proposed by modifying already formulated equation of shear strength of reinforced concrete beams without web reinforcement.

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Available abstract

Key concepts: Reinforcement, Shear (geology), Materials science, Structural engineering, Shear strength (soil), Fiber-reinforced concrete, Direct shear test, Beam (structure)