Effectiveness of Exterior Beam Rotation Prevention Systems for Bridge Deck Construction

The objective of the proposed research is to evaluate current Illinois Department of Transportation (IDOT) bracing policies and procedures and to develop improved procedures, as necessary, to limit fascia girder rotation occurring during new bridge construction. Specific objectives of the study include the following: (1) Evaluate current tie bracing systems commonly used in the state of Illinois to determine effectiveness; (2) Investigate systems used by other states and develop improved systems and construction techniques to limit fascia girder rotation; (3) Determine if there are cases or conditions where transverse ties can be omitted; (4) Determine whether finishing machines should be placed on the overhang or the exterior beam; (5) Evaluate the Torsional Analysis for Exterior Girder (TAEG) program and identify how to properly model and analyze bracing systems appropriate for IDOT; and (6) Develop comprehensive bracing requirements, including improved bracing design details, standards, and policies, that are dependent on specific bridge geometries including beam depth-to-cantilever ratio, cross-frame/diaphragm spacing, and finishing machine rail locations.

    Language

    • English

    Project

    • Status: Active
    • Funding: $300000.00
    • Contract Numbers:

      R27-140

    • Sponsor Organizations:

      Illinois Department of Transportation

      Bureau of Materials and Physical Research
      126 East Ash Street
      Springfield, IL  United States  62704-4766
    • Start Date: 20140101
    • Expected Completion Date: 0
    • Actual Completion Date: 20160630
    • Source Data: RiP Project 39408

    Subject/Index Terms

    Filing Info

    • Accession Number: 01560014
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R27-140
    • Files: RiP
    • Created Date: Apr 8 2015 1:00AM