Shear-Fatigue Behavior of Steel Fiber Reinforced Concrete Beams


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Title: Shear-Fatigue Behavior of Steel Fiber Reinforced Concrete Beams

Author(s): Kae-Hwan KwakK, June Suh, and Cheng-Tzu Thomas Hsu

Publication: Structural Journal

Volume: 88

Issue: 2

Appears on pages(s): 155-160

Keywords: beams (supports) computer programs; cracking (fracturing); cyclic loads; failure; fatigue tests; fiber reinforced concrete; finite element method; load deflection curve; metal fibers; shear properties; static loads; stirrups; Structural Research

Date: 3/1/1991

Recently, the use of steel fibers has been increased in flexural members and columns of concrete structures subjected to cyclic loadings, such as bridge decks, highway roads, airport runways, and buildings. However, few experimental tests have been carried out under fatigue loading. In the present study, reinforced concrete beams with fiber volume fractions of 1 and 2 percent, with and without stirrups, were investigated. Fatigue tests found that the failure of the beam is usually due to breaking of fibers rather than fiber pullout. A comparison of experiments and numerical analysis using a nonlinear finite element method program (ADINA) is also presented.