VINE STEEL BRIDGES FOR FOREST DEVELOPMENT ROADS SOUTH TONGASS NATIONAL FOREST, ALASKA.

Details are outlined of bridges serving timber access roads which were planned to meet three special considerations: the long winter restricts the construction to 2 months; since there is no local source of concrete aggregate, the use of concrete had to be kept at a minimum; the design load is unusually heavy since the bridges must support logging trucks. Two basically similar designs were devised. The first has as one of its features, abutments consisting of steel sheet piling and in the second design the abutments are substituted by end contilevers extending from the bent-supported main span. All the bridges are single span and statically determinate with only two supports per span. The structural system details of the superstructure and the substructure are described and illustrated.

  • Corporate Authors:

    United States Steel Corporation

    Park 80 Plaza West-One
    Saddle Brook, NJ  United States  07662
  • Publication Date: 1973

Media Info

  • Features: Figures;
  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00262421
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM