Division of Engineering Research On-Call Services: Task 4: Load Rating of the Combs-Hehl Stringers Under Permit Loads

The Combs-Hehl Bridge is a series of structures over the Ohio River near Cincinnati spanning between Ohio on the east end and Kentucky on the west end. The overall bridge consists of four approach spans on the Kentucky side of the river (spans 1- 4), two main truss spans over the river, (spans 5 and 6), and four approach spans on the Ohio side of the river (spans 7-10). The bridge carries interstate route 275 and, as a result, consists of two independent structures: the north bridge carrying westbound traffic and south bridge carrying eastbound traffic. Previous work not described herein addressed rating of the stringers in the Ohio approach spans of the north and south bridges, identified as spans 7-10, under a suite of legal truck loads and emergency vehicles. The scope of work for the project described herein is the rating of the stringers in the Ohio approach spans under a suite of typical permit loads. The analyses and rating of the approach spans were conducted using three methods. The first method was based on one-dimensional beam-line (1DBL) models to determine demands and traditional hand calculations to determine capacity. The second approach was based on three-dimensional linear and elastic (3DLE) finite element analyses of the bridges to determine demands and traditional hand calculations to determine capacity. The third approach was based on three-dimensional nonlinear and inelastic (3DNI) finite element analyses of the bridges wherein the finite element model itself was able to determine both the demand on, and the capacity of, the stringers.

  • Record URL:
  • Corporate Authors:

    University of Cincinnati

    Department of Civil and Architectural Engineering and Construction Management
    765 Baldwin Hall
    Cincinnati, OH  United States  45221-0071

    Ohio Department of Transportation

    Office of Statewide Planning and Research
    1980 West Broad Street
    Columbus, OH  United States  43223

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Swanson, James A
    • Rassati, Gian Andrea
    • Chicchi, Rachel A
    • Butler, Martin A
  • Publication Date: 2020-1

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; References; Tables;
  • Pagination: 11p

Subject/Index Terms

Filing Info

  • Accession Number: 01741813
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/OH-2020-2
  • Contract Numbers: SJN 135785; UT20480
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: May 27 2020 3:35PM