TRACK SUPPORT SYSTEMS PARAMETER STUDY - BALLAST AND FOUNDATION MATERIALS RESEARCH PROGRAM

A finite element structural analysis model for conventional railway track support systems (CRTSS) has previously been developed. This study includes parameter studies and sensitivity analyses conducted using the structural model to establish the effects of various parameters on the "instantaneous-elastic" response of CRTSS. The parameters studied are ballast (type and depth), subballast (type and depth), subgrade support conditions, rail size, ties (spacing and width), wheel loading, missing ties and tie type. The parameter study indicates that ballast type and rail size do not significantly effect "instantaneous-elastic" response of CRTSS, while subballast (stabilized), subgrade support condition and wheel loading are some of the major parameters that affect the "instantaneous-elastic" response of the CRTSS.

  • Record URL:
  • Supplemental Notes:
    • Research sponsored by the Federal Railroad Administration, DOT, and the Association of American Railroads.
  • Corporate Authors:

    University of Illinois, Urbana-Champaign

    Department of Civil and Environmental Engineering
    205 North Mathews Avenue
    Urbana, IL  United States  61801-2352
  • Authors:
    • Tayabji, S D
    • Thompson, M R
  • Publication Date: 1976-3

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 71 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00148273
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FRA-OR&D-76-256 Final Rpt.
  • Contract Numbers: DOT-FR-30038
  • Files: NTIS, TRIS
  • Created Date: Feb 16 1977 12:00AM