Develop Deck and Overhang Design Guidelines for Sound Walls and Other Heavy Loads

Economic considerations typically encourage limiting the total number of girders across the width of most bridges. The width of bridge overhangs is normally proportioned so that the same girder sections can be used for both the interior and fascia girders. While many state transportation agencies have guidelines on sizing and detailing bridge overhangs, the current provisions are generally based on rules-of-thumb developed through experience. The research team will develop guidelines for analyzing and designing bridge decks and overhangs to accommodate increased loads due to heavy rails or sound walls. Detailed computational models shall be developed and validated against available test data. A parametric study shall represent the range of design variables encountered for representative Texas bridges. The research team will allow engineers to select the deck thickness, reinforcement detailing, and overhang geometry for a specific project given the bridge railing type, girder spacing, and total number of girders to which the load is distributed. The research shall consider commonly used girder systems and focus on identifying cross-sectional profiles that lead to improved performance for cases with heavier loads compared to standard overhangs.

    Language

    • English

    Project

    • Status: Active
    • Funding: $599,348
    • Contract Numbers:

      0-7116

    • Sponsor Organizations:

      Texas Department of Transportation

      125 E. 11th Street
      Austin, TX  United States  78701-2483
    • Managing Organizations:

      Texas Department of Transportation

      125 E. 11th Street
      Austin, TX  United States  78701-2483
    • Project Managers:

      Suaste, Renee

    • Performing Organizations:

      Center for Transportation Research

      3925 W. Braker Lane
      Austin, TX  United States  78759
    • Principal Investigators:

      Williamson, Eric

    • Start Date: 20210901
    • Expected Completion Date: 20210831
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01782677
    • Record Type: Research project
    • Source Agency: Texas Department of Transportation
    • Contract Numbers: 0-7116
    • Files: RIP, STATEDOT
    • Created Date: Sep 23 2021 9:14AM