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Bond behavior of GFRP/steel wire composite rebars experimental study

  • Qingduo Hao*
  • , Yanlei Wang
  • , Jinping Ou
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Based on the pull-out test, 180 specimens were tested to study the influence of various parameters on bond behavior between GFRP/steel wire composite rebars and concrete. The test variables were the rebar rib spacing, rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth. For each rebar, the average bond strength and the slip at the loaded end were analyzed and compared. The test results showed that the bond behavior was optimum when the rib spacing was the same as the rebar diameter. The bond behavior of GFRP/steel wire composite rebars also varied obviously with the rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth. The test results can provide theoretical basis for determining the development length, building the model of bond-slip constitutive relationship of the GFRP/steel wire composite rebars, and establishing the related criterions.

Original languageEnglish
Pages (from-to)177-182
Number of pages6
JournalShenyang Jianzhu Daxue Xuebao (Ziran Kexue Ban)/Journal of Shenyang Jianzhu University (Natural Science)
Volume24
Issue number2
StatePublished - Mar 2008
Externally publishedYes

Keywords

  • Bond behavior
  • Concrete
  • GFRP/steel wire composite rebar
  • Pull-out test

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