This report was prepared as part of an ongoing research effort by the Urban Mass Transportation Administration (UMTA) to develop standard concrete ties for rapid transit use. The overall objective of this contract was to fabricate and evaluate, by laboratory tests, standard ties of different designs intended for transit use. Two tie designs, a pretensioned monoblock and a post-tensioned two-block, together with preliminary specifications for tie manufacture were developed in an earlier study by the Transit Development Corporation. Objectives of the investigation were to evaluate, by laboratory tests, the adequacy of: each of three fastening systems; each of the tie designs; and the assembled track components with ties supported on ballast and subjected to simulated rapid transit loading. Work performed to accomplish these objectives included fabrication of prestressed concrete ties and testing of ties, fastenings, and assembled track components.

  • Supplemental Notes:
    • See also report PB-297570.
  • Corporate Authors:

    Portland Cement Association

    5420 Old Orchard Road
    Skokie, IL  United States  60077

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Hanna, A N
  • Publication Date: 1979-3

Media Info

  • Pagination: 79 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00198280
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-TSC-UMTA-79-24 Final Rpt.
  • Contract Numbers: DOT-TSC-1442
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 29 1979 12:00AM