Flexural behavior of a precast concrete deck connected with headed GFRP rebars and UHPC

Won Jong Chin, Young Hwan Park, Jeong Rae Cho, Jin Young Lee, Young Soo Yoon

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Steel bent reinforcing bars (rebars) are widely used to provide adequate anchorage. Bent fiber-reinforced polymer (FRP) rebars are rarely used because of the difficulty faced during the bending process of the FRP rebars at the construction site. Additionally, the bending process may cause a significant decrease in the structural performance of the FRP rebars. Therefore, to overcome these drawbacks, a headed glass fiber-reinforced polymer (GFRP) rebar was developed in this study. The pull-out tests of the headed GFRP rebars with diameters of 16 and 19 mm were conducted to evaluate their bond properties in various cementitious materials. Moreover, structural flexural tests were conducted on seven precast concrete decks connected with the headed GFRP rebars and various cementitious fillers to estimate the flexural behavior of the connected decks. The results demonstrate that the concrete decks connected with the headed GFRP rebar and ultra-high-performance concrete (UHPC) exhibited improved flexural performance.

Original languageEnglish
Article number604
JournalMaterials
Volume13
Issue number3
DOIs
Publication statusPublished - 2020 Feb 1

Bibliographical note

Funding Information:
Author Contributions: Conceptualization, W-.C., J-.L., and Y-.Y.; investigation, Y-.P. and J-.C.; writing—original draft preparation, W-.C. All authors have read and agree to the published version of the manuscript. the manuscript. Funding: This research was supported by a grant from the Strategic Research Project “Development of safety Funding: This research was supported by a grant from the Strategic Research Project “Development of safety improvement technology for bridge weak connection and seismic equipment to secure evacuation and recovery rroouuttee iinn eeaarrtthhqquuaakkee”” ffuunnddeedd bbyy KKoorreeaa IInnssttiittuuttee ooff CCiivviill eennggiinneeeerriinngg aanndd bbuuiillddiinngg TTeecchhnnoollooggyy ((KKIICCTT)) aanndd tthhee Smart Civil Infrastructure Research Program (13SCIPA01) funded by the Ministry of Land, Infrastructure and Transport (MOLIT) of the Korean government and the Korea Agency for Infrastructure Technology Advancement (KAIA), Korea. Advancement (KAIA), Korea. Conflicts of Interest: The authors declare no conflict of interest. Conflicts of Interest: The authors declare no conflict of interest.

Funding Information:
This research was supported by a grant from the Strategic Research Project "Development of safety improvement technology for bridge weak connection and seismic equipment to secure evacuation and recovery route in earthquake" funded by Korea Institute of Civil engineering and building Technology (KICT) and the Smart Civil Infrastructure Research Program (13SCIPA01) funded by the Ministry of Land, Infrastructure and Transport (MOLIT) of the Korean government and the Korea Agency for Infrastructure Technology Advancement (KAIA), Korea.

Publisher Copyright:
© 2020 by the authors.

Keywords

  • Bond strength
  • Concrete headed GFRP rebar
  • Development length
  • Flexural strength
  • Glass fiber-reinforced polymer (GFRP) rebar
  • Precast concrete deck
  • Ultra-high-performance concrete (UHPC)

ASJC Scopus subject areas

  • General Materials Science

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