Guidelines for Analytical Methods and Erection Engineering of Curved and Skewed Steel Deck-Girder Bridges

Curved and skewed steel deck-girder bridges can experience significant three-dimensional deflections and rotations. These deformations should be considered in design and in the detailing of cross-frames and the fit-up of cross-frames during erection. The consequences of ignoring these deformations include locked-in stresses in girder flanges, cross-frames, or diaphragms. Depending on the severity of the bridge geometric conditions, a simple analysis solution may be adequate, or a more refined analysis may be required. In addition, curved and skewed steel deck-girder bridges may be unstable during erection. The behavior of these structures at various stages of construction can be quite complex. Depending on the specific configuration of the structure, different levels of analysis techniques may be required to adequately assess the stability of the structure and the possible need for temporary shoring, bracing, or other means to ensure stability during erection. Longer spans, more severe curvature, and more severe skew exacerbate the magnitude of the above effects and may lead to construction problems, claims, and accidents. Therefore, greater attention to erection engineering analysis, preparation of erection plans, and review of erection plans is needed. The objectives of this project are to provide (1) guidance on selecting analytical methods for design and (2) recommendations on the level of erection analysis, erection plan detail, and submittals for skewed and/or horizontally curved steel deck-girder bridges.


  • English


  • Status: Active
  • Contract Numbers:

    Project 12-79

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590

    American Association of State Highway & Transportation Officials

    444 North Capitol Street, NW, Suite 225
    Washington, DC    20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  USA  20001
  • Project Managers:

    Dekelbab, Waseem

  • Performing Organizations:

    Georgia Institute of Technology, Atlanta

    School of Civil and Environmental Engineering
    Atlanta, GA  USA  30332
  • Principal Investigators:

    White, Donald

  • Start Date: 20080402
  • Actual Completion Date: 20120229
  • Source Data: RiP Project 16697

Subject/Index Terms

Filing Info

  • Accession Number: 01464606
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 12-79
  • Files: TRB, RiP, USDOT
  • Created Date: Jan 3 2013 2:45PM