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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Shear Behavior of High-Strength Fiber Reinforced Concrete Beams
Author(s): Samir A. Ashour, GhaziI S. Hasanain, and Faisal F. Wafa
Publication: Structural Journal
Appears on pages(s): 176-184
Keywords: beams (supports); compressive strength; cracking (fracturing); deflection; diagonal tension; fiber reinforced concretes; metal fibers; high-strength concretes; shear strength; span-depth ratio; Structural Research
Abstract:Presents test results of 18 rectangular high-strength fiber reinforced concrete beams subjected to combined flexure and shear. All beams were singly reinforced and without shear reinforcement. The main variables were the steel fiber content, the longitudinal steel ratio, and the shear-span/depth ratio. The concrete matrix compressive strength was about 93 MPa (13,000 psi) containing only one type of fiber. Two empirical equations are proposed to predict the shear strength of high-strength fiber reinforced concrete beams without shear reinforcement. The proposed equations gave good predictions for the shear strength of the tested beams. Addition of fibers increased the beam stiffness and ductility, depending upon the shear-span/depth ratio and transformed the mode of failure into a more ductile one.
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