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Shear Capacity of High Performance Steel Fiber Reinforced Concrete
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Abstract
It is now an established fact that the inclusions of fibers into concrete results in significant improvement in shear capacity of concrete as well the failure mode of composite changes from brittle to ductile. If an improvement through the inclusion of fibers in the properties of concrete is properly considered, this will lead to reduced congestion of steel particularly at beam column junction as well as the failure mode from shear to flexure will be obtained. In spite of these facts steel fiber reinforced concrete has not yet got that wide applicability as it should have. The present study has been undertaken to assess correctly the ultimate shear capacity of high performance steel fiber reinforced concrete beam. High performance concrete was chosen as it is a futuristic material and has desired strength, workability and durability. Beams were cast with different grades of concrete, shapes of fibers, with and without shear reinforcement. Based on experimental testing, an equation to assess ultimate shear capacity was achieved. The same equation was applied over the specimens tested by other authors and was found validated.
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References
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