A concept, still in its preliminary stages is described, in which the capacity of an old steel cantilever through-truss bridge will be increased by constructing a steel arch above the main span and hanging the old bridge structure from it. The deck beams will then be cantilevered or suspended to carry two lanes of traffic on each side of the 4-lane bridge. This will avoid changing the bridge alignment, and it will not need new foundations since the redesigned bridge can be supported on the original piers. The arch concept also requires a much lighter weight bridge deck than on the existing structure. Other advantages of this concept are also noted.

  • Availability:
  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  United States  10036
  • Publication Date: 1991-8-5

Media Info

  • Pagination: p. 19-20
  • Serial:
    • ENR
    • Volume: 227
    • Issue Number: 5
    • Publisher: McGraw-Hill, Incorporated
    • ISSN: 0891-9526

Subject/Index Terms

Filing Info

  • Accession Number: 00611210
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 1991 12:00AM