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

Project Details
STATE

MI

SOURCE

ACI

END DATE

03/01/18

RESEARCHERS

Amin, Ali; Gilbert, R Ian

SPONSORS

American Concrete Institute, Detroit, Michigan

KEYWORDS

Cracking, Cracking of concrete pavements, Fiber reinforced concrete (FRC), Flexure, Highways, Materials, Pavements, Steel fibers, Stiffness

LINKS

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Project description

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.
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