Experimental and theoretical investigation on the shear of steel fibre reinforced concrete beams

• Published in: Engineering structures Vol. 21; no. 10; pp. 937 - 944
• Main Authors: Lim, D.H., Oh, B.H.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Ltd 01.10.1999; Elsevier
• Subjects: Applied sciences; Building structure; Buildings. Public works; Construction (buildings and works); Crack control; Cracking/ultimate shear strength; Ductility; Exact sciences and technology; Steel fibre reinforced concrete; Steel-concrete composite structure; Stresses. Safety; Structural analysis. Stresses; Cracking/ultimate shear strength; Steel fibre reinforced concrete; Crack control; Ductility; Ultimate strength method; Theoretical study; Cracking; Shear strength; Experimental device; Multivariate analysis; Experimental study; Beam(mechanics); Bending strength; Sample preparation; Failure analysis; Fiber reinforced concrete; Steel fiber; Comparative study
• ISSN: 0141-0296; 1873-7323
• DOI: 10.1016/S0141-0296(98)00049-2

A total of nine beams have been tested to investigate the influence of fibre reinforcement on the mechanical behaviour of reinforced concrete beams in shear. The major test variables are the volume fraction of steel fibres and the ratios of stirrups to the required shear reinforcement. The test results show that the first crack shear strength increases significantly as fibre content increases and the improvement in ultimate shear strength is also achieved. The present study indicates that fibre reinforcement can reduce the amount of shear stirrups required and that the combination of fibres and stirrups may meet strength and ductility requirements. An analytical method to predict the shear strength of reinforced concrete beams containing steel fibres is proposed and comparisons made with the present test data as well as other data.