Experimental study on the performance of GFRP connectors for use in precast concrete sandwich panels

J. Q. Huang, J. G. Dai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

In this paper, three kinds of glass fiber reinforced polymer (GFRP) connectors were proposed for use in precast concrete sandwich panels, including “I” beam, corrugated plate and hexagonal tube. Direct shear tests based on a typical push-out configuration (i.e., three concrete wythes linked with connectors and two rigid foam layers in between) were conducted to compare their performance with that of one commercially available product, which is being widely used in PCSPs in prefabricated construction. The test results indicated that, the shear resistance of all proposed connectors was governed by the material failure in GFRP and no pull out failure of the connectors from the concrete wythes occurred. All proposed GFRP connectors showed a higher shear stiffness and shear resistance (more than 13kN per connector) than corresponding existing systems. The corrugated GFRP plate performed the best while the GFRP tube performed the second in terms of shear stiffness and shear resistance, demonstrating their good potential for applications in partially or fully composite concrete sandwich panels. Finite element analyses were also conducted to investigate the stress condition in the proposed connectors during the loading stage. The analytical results indicated that “I” beam and corrugated plate connectors mainly generate shear deformation whereas the hexagonal tube generate both significant flexural and significant shear deformation.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
EditorsJ.G. Dai, J.G. Teng
PublisherDepartment of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University
Pages666-673
Number of pages8
ISBN (Electronic)9789881448026
Publication statusPublished - 1 Jan 2016
Event8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 - Hong Kong, China
Duration: 14 Dec 201616 Dec 2016

Publication series

NameProceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016

Conference

Conference8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
CountryChina
CityHong Kong
Period14/12/1616/12/16

Keywords

  • Connector
  • Direct shear test
  • GFRP tube
  • Precast concrete sandwich panel
  • Shear resistance
  • Shear stiffness

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Polymers and Plastics

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