Bridge Structural Analyses for Staged Construction and Constructability Reviews

Typical highway bridge design requires accounting of stresses in structural elements at the strength or service limit states, which assume the elements are fully constructed per project specifications. There is often a need to analyze structural elements during the various stages of construction for loadings or stresses that are not present in the finished, in service structure. Staged or part width construction can present many challenges that create stresses on the structure that need to be quantified, such as differential deflections, diaphragm connections, beam capacity and out of plane bending due to wet concrete deck load, overhang check for rotation or bracing needs, etc. Bridge removal sequences, shoring, and temporary supports can also impact project costs, timelines, and durability if not properly accounted for. To provide continued support to field offices, Bridge Field Services would like calculation templates developed to address common constructability analyses, review stresses, and verify design assumptions at each stage of bridge construction to prevent overloading of structural elements during construction. Structural elements considered for analysis include: Girders, decks, diaphragms, cross frames, stiffeners, bearings, and any other elements that transmit construction loading.

    Language

    • English

    Project

    • Status: Active
    • Sponsor Organizations:

      Michigan Department of Transportation

      Van Wagoner Building
      425 W. Ottawa Street
      Lansing, MI  United States  48909
    • Principal Investigators:

      Aktan, Haluk

    • Start Date: 20170701
    • Expected Completion Date: 20200531
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01732719
    • Record Type: Research project
    • Source Agency: Michigan Department of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Mar 4 2020 1:09PM