Investigation of the strengthening effect of DFRCC applied to plain concrete beams

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

One of the most important characteristics of Ductile Fiber Reinforced Cementitious Composite (DFRCC) is its strain hardening behavior up to 5-6% strain under tensile loading. In this study, the strengthening effect of DFRCC, applied to the tension region of plain concrete beams, is both numerically and experimentally examined. More specifically, 10%, 20%, and 30% of the beam height are replaced with DFRCC to measure the strengthening effect of the composite beam. From four-point bending tests and numerical simulations, the load-deflection behaviors are investigated and compared. To assess the effect of ultimate tensile strength, strain capacity and strain hardening slope of DFRCC, numerical simulations are carried out with DFRCC strain capacities ranging from 1% to 5%. From these studies, it is shown that DFRCC significantly contributes to the deflection capacity, load carrying capacity and failure modes of concrete beams.

Original languageEnglish
Pages (from-to)465-473
Number of pages9
JournalCement and Concrete Composites
Volume29
Issue number6
DOIs
Publication statusPublished - 2007 Jul 1

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Strengthening (metal)
Concretes
Fibers
Composite materials
Strain hardening
Computer simulation
Bending tests
Load limits
Failure modes
Tensile strength

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Materials Science(all)

Cite this

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title = "Investigation of the strengthening effect of DFRCC applied to plain concrete beams",
abstract = "One of the most important characteristics of Ductile Fiber Reinforced Cementitious Composite (DFRCC) is its strain hardening behavior up to 5-6{\%} strain under tensile loading. In this study, the strengthening effect of DFRCC, applied to the tension region of plain concrete beams, is both numerically and experimentally examined. More specifically, 10{\%}, 20{\%}, and 30{\%} of the beam height are replaced with DFRCC to measure the strengthening effect of the composite beam. From four-point bending tests and numerical simulations, the load-deflection behaviors are investigated and compared. To assess the effect of ultimate tensile strength, strain capacity and strain hardening slope of DFRCC, numerical simulations are carried out with DFRCC strain capacities ranging from 1{\%} to 5{\%}. From these studies, it is shown that DFRCC significantly contributes to the deflection capacity, load carrying capacity and failure modes of concrete beams.",
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Investigation of the strengthening effect of DFRCC applied to plain concrete beams. / Shin, S. K.; Kim, Jang Jay Ho; Lim, Yun Mook.

In: Cement and Concrete Composites, Vol. 29, No. 6, 01.07.2007, p. 465-473.

Research output: Contribution to journalArticle

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AB - One of the most important characteristics of Ductile Fiber Reinforced Cementitious Composite (DFRCC) is its strain hardening behavior up to 5-6% strain under tensile loading. In this study, the strengthening effect of DFRCC, applied to the tension region of plain concrete beams, is both numerically and experimentally examined. More specifically, 10%, 20%, and 30% of the beam height are replaced with DFRCC to measure the strengthening effect of the composite beam. From four-point bending tests and numerical simulations, the load-deflection behaviors are investigated and compared. To assess the effect of ultimate tensile strength, strain capacity and strain hardening slope of DFRCC, numerical simulations are carried out with DFRCC strain capacities ranging from 1% to 5%. From these studies, it is shown that DFRCC significantly contributes to the deflection capacity, load carrying capacity and failure modes of concrete beams.

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