File name is TIELOAD. Computer Program. Application: Used for determining number of ties supporting an axle load on bridge decks on bridges with wide girder centers where the existing bridge deck is substandard based on TIERATE and a 3 tie design. Indicates the effect caused by changing the tie depth and tie spacing. This program computes the number of ties in a bridge deck that effectively support one axle of one or a series of axle loads, based on the simultaneous acting as a continuous beam on a continous elastic base (AREA proceedings of 1918, Vol. 19, pages 875-1058). The formulas are based on those derived by E.S. Birkenwald and C.H. Newlin November 11, 1944 for AREA committee 15, but never published because of their complexity. Input consists of dimensions of top flange girder components, center to center girders, tie width, depth, and spacing, and axle load spacings. Output includes documentation of the input, modulus of elasticity of the rails, ties, and rail support, and the load distribution for one axle to "x" ties for 6 common rail sizes.

  • Corporate Authors:

    Southern Railway System

    99 Spring Street, SW
    Atlanta, GA  United States  30303
  • Authors:
    • Alford, H T
  • Publication Date: 1972-12

Subject/Index Terms

Filing Info

  • Accession Number: 00098728
  • Record Type: Publication
  • Source Agency: American Railway Engineering Association
  • Files: TRIS
  • Created Date: Aug 27 1975 12:00AM