Tests on web crippling strengthening of pultruded glass fibre reinforced polymer sections

C. Wu, Y. Bai, X. L. Zhao

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

Abstract

Web crippling failure is critical for pultruded glass fibre reinforced polymer (GFRP) sections under concentrated bearing load due to their low material strength in transverse direction. This paper examined two approaches to enhance the web crippling strength of pultruded GFRP sections, through CFRP strengthening or steel tube strengthening. Experimental studies were conducted on the strengthened GFRP square hollow sections (SHS) of two different dimensions. Two loading conditions, end-two-flange (ETF) and interior-two-flange (ITF), were applied to investigate the effect of loading position on the web crippling behaviour. It was found that the web crippling capacity of GFRP section was effectively improved by up to about 85% using CFRP strengthening, and by up to about 4 times using steel tube strengthening.

Original languageEnglish
Title of host publicationProceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
EditorsScott T. Smith, Xiao-Ling Zhao, Yu Bai, Riadh Almahaidi
PublisherInternational Institute for FRP in Construction (IIFC)
ISBN (Electronic)9780987593016
Publication statusPublished - 2013
Externally publishedYes
Event4th Asia-Pacific Conference on FRP in Structures, APFIS 2013 - Melbourne, Australia
Duration: 11 Dec 201313 Dec 2013

Publication series

NameProceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013

Conference

Conference4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
Country/TerritoryAustralia
CityMelbourne
Period11/12/1313/12/13

Keywords

  • Fibre-reinforced composite
  • Pultrusion
  • Shear failure
  • Strengthening
  • Web crippling
  • Web-flange junction

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Materials Science

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