Title:
Shear Strength of Normal and High-Strength Fiber Reinforced Concrete Beams without Stirrups
Author(s):
Madhusudan Khuntia, Bozidar Stojadinovic, and Subhash C. Goel
Publication:
Structural Journal
Volume:
96
Issue:
2
Appears on pages(s):
282-289
Keywords:
fiber reinforced concretes; high-strength concretes; metal fibers; reinforcing steels; shear strength; tensile strength
DOI:
10.14359/620
Date:
3/1/1999
Abstract:
This paper presents a rational and unified procedure for predicting the shear strength of normal and high-strength fiber reinforced concrete (FRC) beams. A design equation is suggested for evaluating the ultimate shear strength of FRC beams based on the basic shear transfer mechanisms and numerous published experimental data on concrete strength up to 100 MPa (14,500 psi). In addition to concrete strength, the influence of other variables such as fiber factor, shear span-to-depth ratio, longitudinal steel ratio, and size effect is considered. The modeling approach is similar to that applied for conventional reinforced concrete beams, except for some modifications suggested in this paper, to account for the effect of the fibers. The comparison between computed values and experimentally observed values is shown to validate the proposed analytical treatment.