EFFECT OF DESIGN PARAMETERS ON TRACK SUPPORT SYSTEMS

A finite-element structural-analysis model for conventional railway-track support systems previously developed was used as the basis of a study of design parameters to establish the effects of the various parameters on the instantaneous-elastic response of a support system. The parameters studied were type and depth of ballast, type and depth of subballast, subgrade-support conditions, rail size, tie spacing, wheel loading, and number of missing ties. The study indicated that type of ballast and rail size do not significantly affect the instantaneous-elastic response of a support system, but the stabilized subballast, the subgrade-support condition, and the wheel loading are major parameters that do.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 2-11
  • Monograph Title: Track systems and other related railroad topics
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00183886
  • Record Type: Publication
  • ISBN: 0309026822
  • Files: TRIS, TRB
  • Created Date: Dec 3 1978 12:00AM