DISTRIBUTION OF AXLE-LOADS ON BALLASTED SLAB BRIDGES

A SURVEY OF NATIONAL RAILWAY ADMINISTRATIONS SHOWED THAT THERE WERE GREAT DIFFERENCES IN THE METHODS FOR CALCULATING REINFORCED CONCRETE BRIDGES. INTER ALIA, THIS COULD BE EXPLAINED BY THE DIFFERENT ASSUMPTIONS ADOPTED AS TO LOAD DISTRIBUTION IN THE LONGITUDINAL AND TRANSVERSE SECTIONS. THE FORMER PROBLEM HAS BEEN ADEQUATELY SOLVED; FOR THE LATTER, THE INTERNATIONAL UNION OF RAILWAYS SUBCOMMISSION ON BRIDGES UNDERTOOK A TEST PROGRAM IN COLLABORATION WITH THE INSTITUTE FOR LIGHTWEIGHT CONSTRUCTION AND THE EFFICIENT USE OF MATERIALS IN DRESDEN. THE OBJECT OF THE TESTS, WHOSE METHODOLOGY AND FIRST RESULTS ARE REPORTED HERE, WAS TO DETERMINE AXLE LOAD DISTRIBUTIONS OVER THE CROSS-SECTION OF THE BRIDGE TRANSVERSE TO THE LONGITUDINAL AXIS AS A FUNCTION OF (1) THE SPAN OF THE SLAB BETWEEN THE LONGITUDINAL BEAMS, (2) SLABS THICKNESS, (3) BALLAST DEPTH, (4) SLEEPER BEDDING, AND (5) THE POSITION OF THE TRACK IN RELATION TO THE CROSS-SECTION OF THE BRIDGE TRANSVERSE TO THE LONGITUDINAL AXIS.

  • Supplemental Notes:
    • No 9, pp 780-784, 3 FIG, 1 TAB
  • Publication Date: 1971-9

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Filing Info

  • Accession Number: 00209590
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 15 1972 12:00AM