Title: Bending Behavior of Steel-Fiber Concrete Beams

Author(s): T. Y. Lim, P. Paramisivam, and S. L. Lee

Publication: Structural Journal

Volume: 84

Issue: 6

Appears on pages(s): 524-536

Keywords: beams (supports); bending; delta; fiber reinforced concretes; flexural strength; load-deflection curve; metal fibers; strength; moment-curvature relationship; stress-strain relationships; Structural Research

DOI: 10.14359/2794

Date: 11/1/1987

Abstract:
An analytical and experimental investigation into the moment-curvature M-í and load-deflection P-ë characteristics of steel-fiber concrete (SFC) beams is reported. Explicit expressions are given for the moduli of elasticity and the tensile and compressive stress-strain behavior of the composite. In flexure, the composite is treated as a bimodulus material and its M-í and P-ë relationships in the elastic and cracked range are derived. Analytically predicted curves are found to agree well with those obtained from experiments conducted on two series of mixes. This approach serves as a useful tool to predict flexural strength and to quantify the toughness of the material using available indexes.