<b>Tension stiffening of steel-fiber-reinforced concrete

Luiz Ílvaro Oliveira Júnior; Daniel de Lima Araújo; Romildo Dias Toledo Filho; Eduardo Moraes Rego Fairbairn; Moacir Alexandre Souza Andrade

doi:10.4025/actascitechnol.v38i4.28077

<b>Tension stiffening of steel-fiber-reinforced concrete

Authors

Luiz Ílvaro Oliveira Júnior Pontifícia Universidade Católica de Goiás
Daniel de Lima Araújo Universidade Federal de Goiás
Romildo Dias Toledo Filho Universidade Federal do Rio de Janeiro
Eduardo Moraes Rego Fairbairn Universidade Federal do Rio de Janeiro
Moacir Alexandre Souza Andrade Furnas Centrais Elétrica S.A.

DOI:

https://doi.org/10.4025/actascitechnol.v38i4.28077

Keywords:

tension tests, empirical model, crack width.

Abstract

In this paper, the mechanical behavior of steel-fiber-reinforced concrete was investigated to analyze the influence of steel fibers on tension stiffening. Using tension tests, the tension stiffening coefficient was evaluated through the load versus strain responses obtained from strain gages fixed to reinforcement steels. Moreover, an empirical model is proposed to estimate the tension stiffening coefficient of steel-fiber-reinforced concrete from reinforcement strains. From the test results, it was verified that the addition of steel fibers to concrete reduced the reinforcement steel strains and the crack width and increased the stiffness of cracked concrete, mainly in concretes reinforced with highvolumesof fibers.

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Author Biography

Daniel de Lima Araújo, Universidade Federal de Goiás

Escola de Engenharia Civil

Laboratório de Inovação Tecnológica em Construção Civil - LABITECC

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Published

2016-08-26

How to Cite

Oliveira Júnior, L. Ílvaro, Araújo, D. de L., Toledo Filho, R. D., Fairbairn, E. M. R., & Andrade, M. A. S. (2016). <b>Tension stiffening of steel-fiber-reinforced concrete. Acta Scientiarum. Technology, 38(4), 455–463. https://doi.org/10.4025/actascitechnol.v38i4.28077

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Issue

Vol. 38 No. 4 (2016)

Section

Civil Engineering

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