The file name is AAR 6. This program is used to analyze and rate floor systems of railway bridges. All rating is in accordance with the 1969 AREA specifications and is based on member cross section only. The deck is not analyzed or rated. Five types of floor system may be selected and seven common types of member cross-section are considered as in Program No. 5. For rating purposes, eight classes of steel may be specified. If an analysis is required the floor system may be considered subject to the basic types of loading used in Program No. 1 and No. 5. For rating purposes, members are analyzed for a Cooper E80 load automatically. A maximum of 10 points on members can be analyzed or rated. The input required includes member span lengths and section properties uniform dead load on members, member spacing, track location and weight, and other dead loads; various live loads, impact and wind. Output includes a listing of member sections entered and a listing of dead load shears and moments. If the members are rated, moments, shears and stresses are output for an E80 loading without impact as well as a rating for moment and shear for all sections for train speeds of 40, 30, and 10 mph. If the members are to be analyzed, live moments, shears and stresses are putput without impact. Total values including dead load, live load and impact are also output. It is possible to analyze members for shear and moment only, thus reducing the input considerably.

Subject/Index Terms

Filing Info

  • Accession Number: 00098737
  • Record Type: Publication
  • Source Agency: American Railway Engineering Association
  • Files: TRIS
  • Created Date: Aug 27 1975 12:00AM