Investigation of Exterior Girder Rotation and the Effect of Skew during Deck Placement, TR-711

With many of the nation's bridges approaching (or having already exceeded) their original design life, bridge replacement options/techniques/technologies continue to need to be advanced to meet the challenges faced by the bridge engineering community. Recent statistics reveal that there are approximately 600,000 bridges on the highway system and approximately 25%, by deck area, are considered either structurally deficient or functionally obsolete. Although the situation has improved some in recent years, a significant problem still exists given the number of bridges needing regular replacement. It is vitally important that, when constructed (or when only decks are replaced), the utmost highest construction practices are followed such that the final product has a high likelihood of achieving the target design life. It has been observed that current construction practices associated with constructing bridge decks sometimes results in excessive out-of-plane and torsional loads on exterior girders. Structurally, this can result in decks that are too thin or girders with excessive (and unintended) internal stresses. Functionally, this can result in bridges that are difficult to maintain or have rideability issues.

    Language

    • English

    Project

    • Status: Active
    • Funding: $89,999
    • Contract Numbers:

      ISU proposal number: 135080

      TR-711

      Add 580

    • Sponsor Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Managing Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Project Managers:

      Goetz, Vanessa

    • Performing Organizations:

      Iowa State University

      Bridge Engineering Center
      2711 South Loop Drive, Suite 4700
      Ames, Iowa  United States  50010-8664

      Iowa State University, Ames

      Institute for Transportation
      2711 South Loop Drive, Suite 4700
      Ames, Iowa  United States  50010-8664
    • Principal Investigators:

      Phares, Brent

      Shafei, Behrouz

    • Start Date: 20160701
    • Expected Completion Date: 20190831
    • Actual Completion Date: 0
    • Source Data: TR-711; Addendum 580

    Subject/Index Terms

    Filing Info

    • Accession Number: 01601657
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: ISU proposal number: 135080, TR-711, Add 580
    • Files: RiP, STATEDOT
    • Created Date: Jun 2 2016 2:08PM