Title: Instantaneous Crack Width Calculation for Steel Fiber- Reinforced Concrete Flexural Members

Author(s): Ali Amin and R. Ian Gilbert

Publication: Structural Journal

Volume: 115

Issue: 2

Appears on pages(s): 535-543

Keywords: crack width; serviceability; steel fiber; tension chord model; tension stiffening

DOI: 10.14359/51701116

Date: 3/1/2018

Abstract:
A rational and simple method is presented in this paper to determine instantaneous crack widths of steel fiber-reinforced concrete members subjected to flexure. By adding fibers to concrete, the postcracking stiffness of a concrete structure can increase significantly. The model builds upon previous work conducted by the authors by considering the beneficial effect of the fibers across a crack to the tension stiffening relationship of steel fiber-reinforced concrete. The model reported herein is shown to give reliable predictions of reported experimental values.