Although reflection of moments occurs under dynamic loading, full reflection does not occur under heavy loads. The author's suggestion that concrete ties be designed with a uniform prestressed section of constant cross-sectional area seems unjustified. A shallower section at tie center enables a better utilization of materials in a prestressed concrete tie. The author pointed out the extensive use of concrete ties by the Florida East Coast Railroad, Black Mesa and Lake Powell Railroad, and the Canadian National Railway. The writer wishes to add to this list Amtrak which recently awarded a contract for manufacturing 1,100,000 concrete ties to be installed on 400 track miles of the Northeast Corridor Improvement Program. /Author/

  • Availability:
  • Supplemental Notes:
    • Discussion from the Proc. Paper 13557, February 1978.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Discussers:
    • Hanna, A N
  • Publication Date: 1978-11

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Filing Info

  • Accession Number: 00194265
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jun 13 1979 12:00AM