Design of Steel Fibre Reinforced Concrete Beams for Shear


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Title: Design of Steel Fibre Reinforced Concrete Beams for Shear


Publication: CIA



Appears on pages(s):


Date: 2/28/2011

While fibre reinforced concrete is in its 4th decade of development, it has yet to find common application in building structures. Potentially, steel fibres can be used to replace a substantial quantity of conventional shear reinforcement in reinforced and prestressed concrete beams. While the material cost of the fibres exceeds that of relatively cheap shear steel reinforcement, significant savings can be obtained in substantially reducing on site labour costs. In this paper, a lower bound modelling approach is developed, based on the model of AS3600, for the design of steel fibre reinforced concrete beams. The model is applicable to both reinforced and prestressed concrete construction with shear stresses carried with steel fibres or a combination of steel fibres and conventional shear reinforcement. The model is tested against 258 data collected from the literature with the comparison showing that the model provides for safe design of conventional strength, high strength and ultra high performance concrete beams in shear.

Concrete Institute of Australia, International Partner Access.

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