The static behavior of a modular foam-filled GFRP bridge deck with a strong web-flange joint

Goangseup Zi, Byeong Min Kim, Yoon Koog Hwang, Young Ho Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The static behavior of a modular bridge deck filled with a low-density polyurethane foam was experimentally investigated. The web-flange joint of the deck was strong enough so that a failure of the deck in the transverse direction was governed by the delamination of the bond between two adjacent modules whether the deck was filled or not. Although the elastic modulus of the foam was only a thousandth of the homogenized modulus of the GFRP deck, the structural performance of the deck in the transverse direction was significantly improved by the foam filled inside the deck. It was shown experimentally that tensile stress could develop in the top flange of the deck subjected to three point bending because of shear deformation. Such a development of tensile stress was significantly mitigated by the foam filled inside the deck.

Original languageEnglish
Pages (from-to)155-163
Number of pages9
JournalComposite Structures
Volume85
Issue number2
DOIs
Publication statusPublished - 2008 Sep

Keywords

  • Foam
  • Foam-filled GFRP deck
  • Orthotropic bridge deck
  • Strong web-flange joint
  • Transverse direction

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

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