STEEL GIRDER DESIGN: CAN IT BE SIMPLIFIED?

Investigators at the University of Nebraska evaluated the contribution of different structural elements on the performance of steel girder bridges by constructing a full-scale bridge and conducting ultimate load and punching shear tests. One objective was to determine the effect of different diaphragms and their spacing on steel girder bridge performance. Field testing has shown that the American Association of State Highway and Transportation Officials (AASHTO) Manual for Bridge Inspection and Evaluation is conservative and does not accurately reflect the capacity of steel girder bridges. This article describes laboratory testing and draws three conclusions. First, for steel bridges with small skew, diaphragms are only necessary during construction. Second, ultimate capacity of steel bridges with the slab based on the empirical rule is much greater than AASHTO predictions. Finally, a user-friendly three-dimensional analysis package has been developed that closely matches test results.

  • Availability:
  • Corporate Authors:

    American Institute of Steel Construction

    One East Wacker Drive, Suite 3100
    Chicago, IL  United States  60601-2001
  • Authors:
    • Azizinamini, Atorod
    • Kathol, S
    • Beacham, M W
  • Publication Date: 1994-9

Language

  • English

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 44-46
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00669287
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 25 1994 12:00AM