Design and Analysis of Thermoplastic Composite Bridge Superstructure

This study is primarily focused on addressing the application of fiber reinforced composites (thermoplastics) in the design of bridge decks. Bridges are vital components of the nation's infrastructure, many of which are deteriorated. The replacement of such bridges requires careful planning as well as exploration of other materials that will resist the factors leading to the deterioration of old bridges, which in many cases need to be replaced before reaching 50 percent of their expected service life. In this study we present an integral modular fiber thermoplastic composite bridge structural system. The design concept is presented by utilizing high performance thermoplastic material (i.e. Glass/Polypropylene) along with an efficient low cost manufacturing process and fabrication technique. The design is based on detailed finite element analyses and limited experiments to investigate the stiffness and strength of the structural system. To demonstrate the design concept, two bridge deck systems with different spans were modeled and compared with two current thermoset composite bridge systems. The proposed design concepts for both decks present a unique approach for structurally efficient and low cost bridge deck systems.

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  • Supplemental Notes:
    • This research was funded by the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    University of Alabama, Birmingham

    Department of Civil, Construction and Environmental Engineering
    1075 13th Street South
    Birmingham, AL  United States  35294

    University of Alabama, Birmingham

    Department of Materials Science and Engineering
    Birmingham, AL  United States  35294

    University Transportation Center for Alabama

    University of Alabama
    Tuscaloosa, AL  United States  35487
  • Authors:
    • Uddin, Nasim
    • Abro, Abdul Moeed
    • Vaidya, Uday
  • Publication Date: 2007-1


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 28p

Subject/Index Terms

Filing Info

  • Accession Number: 01046423
  • Record Type: Publication
  • Report/Paper Numbers: UTCA Report 05228
  • Contract Numbers: DTRS98-G-0028 (Grant)
  • Files: UTC, NTL, TRIS
  • Created Date: Apr 19 2007 9:30PM