Development and Evaluation of an Adhesively Bonded Panel-to-Panel Joint for a FRP Bridge Deck System

A fiber-reinforced polymer (FRP) composite cellular deck system was used to rehabilitate a historical cast iron thru-truss structure (Hawthorne St. Bridge, Covington, VA). The most important characteristic of this application is reduction in self-weight, which raises the live load-carrying capacity of the bridge by replacing the existing concrete deck with an FRP deck. This bridge is designed to HL-93 load and has a 22.86 m clear span with a roadway width of 6.71 m. The panel-to-panel connections were accomplished using full width, adhesively (structural urethane adhesive) bonded tongue and groove splices with scarfed edges. To ensure proper construction, serviceability, and strength of the splice, a full-scale 2-bay section of the bridge with 3 adhesively bonded panel-to-panel connections was constructed and tested. Results showed that no crack initiated in the joints under service load and no significant change in stiffness or strength of the joint occurred after 3,000,000 cycles of fatigue loading. The proposed adhesive bonding technique was installed in the bridge in August 2006.

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  • Supplemental Notes:
    • Abstract reprinted with permission from ASCE
  • Authors:
    • Liu, Zihong
    • Majumdar, Prasun K
    • Cousins, Thomas E
    • Lesko, John J
  • Publication Date: 2008-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01099820
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: May 21 2008 4:33PM