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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Static and Fatigue Properties of Concrete Beams Reinforced
with Continuous Bars and with Fibers
Author(s): H. A. Kormeling, H. W. Reinhardt, and S. P. Shah
Publication: Journal Proceedings
Appears on pages(s): 36-43
Keywords: beams (supports); cracking (fracturing); crack width and spacing;
cyclic loads; deflection; dynamic loads; dynamic tests; fatigue (materials); fa-tigue tests; fiber reinforced concretes; loads (forces); metal fibers; reinforced concrete;research.
Abstract:To study the influence of steel fibers on the fatigue behavior of conventionally reinforced concrete structures, beams reinforced with three different volumes of reinforcing bars were tested in a constant amplitude fatigue loading. For each amount of conventional steel, three types of fibers were used. Addition of fibers to conventionally reinforced concrete beams increased the static ultimate bending moment and the fatigue fife, and decreased, for a given static load and a given number of cycles, deflections and crack widths. The parameter pl/d (p = volume fraction, 1 = length, and d = diameter of fibers) adequately describes the various influences of fibers on the fatigue behavior of the reinforced concrete beams. The beneficial effects of fibers diminish at higher volume of reinforcing bars. Reinforced concrete beams subjected to a constant amplitude fatigue loading experience an increase in deflections, crack width, and average stresses in bars.
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