TTCI STUDIES FATIGUE STRENGTH OF TIMBER BRIDGE STRINGERS

Despite a current trend of replacing them in steel or concrete, timber bridges still form about one-third of the Class 1 railroads' bridge inventory. These bridges are, on the average, more than 40 years old, and as their replacement is gradual, various measures are being employed to extend their useful life. Although caps and/or piles can often determine load capacity of a timber railroad bridge, stringers are the main elements that bear bending loads. As part of Association of American Railroads' Bridge Life Extension Program, the Transportation Technology Center, Inc. (TTCI) is conducting a series of fatigue tests on timber bridge stringers. The tests on Southern pine stringers are complete and are reported in this article.

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  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    345 Hudson Street
    New York, NY  United States  10014
  • Authors:
    • Uppal, A S
    • Fry, G T
  • Publication Date: 2000-6

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 17-20
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00794353
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 25 2000 12:00AM