Innovative and Economical Steel Bridge Design Alternatives for Colorado: Hybrid Girders, Double-Composites, Epoxy FRP Cover Plates, and External Post Tensioning

Hybrid weld plate single-made-continuous (SMC) bridge girders are a valid competitor, not only to continuous hybrid steel girders, but also to the dominant precast post-tensioned prestressed spliced girders. However, continuity, fatigue, buckling, and plasticity at the negative moment region need to be validated before moving from steel wide flange rolled beams to welded plate girders. This Phase II study will address key detail issues that arose during the Phase I study sponsored by the Colorado Department of Transportation (CDOT). It will then focus on other potential approaches, including hybrid steel girders, external post tensioning, use of double composite steel-concrete bridges, and application of an FRP cover plate to the bottom flange using epoxy to optimize the cross section.


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    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Colorado Department of Transportation

      4201 East Arkansas Avenue
      Denver, CO  USA  80222
    • Project Managers:

      Khan, Aziz

    • Performing Organizations:

      Colorado State University, Fort Collins

      Fort Collins, CO  USA  80523
    • Principal Investigators:

      van de Lindt, John

    • Start Date: 20100104
    • Actual Completion Date: 20141104
    • Source Data: RiP Project 25595

    Subject/Index Terms

    Filing Info

    • Accession Number: 01503811
    • Record Type: Research project
    • Source Agency: Colorado Department of Transportation
    • Contract Numbers: 85.10
    • Files: RiP
    • Created Date: Jan 18 2014 1:01AM