THERMAL INTERACTION OF LONG WELDED RAILS WITH RAILWAY RAILWAY BRIDGES

The paper presents a theory of long welded rails laid on railway bridges and subjected to thermal variations. The theory was compared with experiments on three steel railway bridges: one with direct fastening without ballast, the second with ballast and wooden sleepers and the third with free fastening without ballast. The theory enables to suggest a table of admissible dilatable lengths of railway bridges with continuous welded rails. It depends on the arrangement of bridge bearings (fixed and movable), on the material (steel, composite, concrete and/or prestressed bridges), on the presence and arrangement of ballast and of floor system and on the cross-section area of rails. The paper explains the effect of some parameters on the stresses and displacements of rails, on the forces in fixed bearings and in bridges with curved track.

• Availability:
  • Find a library where document is available. Order URL: https://www.library.northwestern.edu/find-borrow-request/requests-interlibrary-loan/lending-institutions.html
• Authors:
  • Fryba, L
• Publication Date: 1985-3

Media Info

• Features: Photos; References; Tables;
• Pagination: p. 5-24
• Serial:
  • RAIL INTERNATIONAL
  • Volume: 16
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Ballastless track; Bridge bearings; Bridge decks; Bridge design; Bridges; Continuous welded rail; Curved track; Rail (Railroads); Rail fasteners; Railroad bridges; Railroad tracks; Structural design; Thermal degradation
• Old TRIS Terms: Rail thermal stress; Track structures
• Subject Areas: Bridges and other structures; Construction; Public Transportation; Railroads;

Filing Info

• Accession Number: 00451208
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Nov 30 1985 12:00AM