Effect on Superstructure Stress of Replacing a Composite RC Bridge Deck with a GFRP Deck

Glass fiber-reinforced polymer (GFRP) composite bridge decks behave differently than comparable reinforced concrete (RC) decks. GFRP decks exhibit reduced composite behavior (when designed to behave in a composite manner) and transverse distribution of forces. Both of these effects are shown to counteract the beneficial effects of a lighter deck structure and result in increased internal stresses in the supporting girders. The objective of this paper is to demonstrate through an illustrative example the implications of RC-to-GFRP deck replacement on superstructure stresses. It is also shown that, regardless of superstructure stresses, substructure forces will be uniformly reduced due to the lighter resulting superstructure.

  • Availability:
  • Authors:
    • Harries, Kent A
    • Moses, Jonathan
  • Publication Date: 2007-5


  • English

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Filing Info

  • Accession Number: 01051528
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 10 2007 9:02PM