UNBALLASTED TRACK WITH LONG-WELDED RAILS ON THE NEW STRANDMOLLE BRIDGE

BALLASTLOSE LANGSKINNESPOR PA DEN NYE STRANDMOLLEBRO

The new post-tensioned double-track railway bridge has an unusually low constructional height counted from the underside of the bridge deck to the top of the rail. The unballasted track is laid directly on the bridge deck, and the traditional moisture isolation is replaced by a special moisture membrane. The structural height is therefore reduced by about half a meter and the bridge load by nearly 10 tons per running meter. To prevent cracks in the concrete deck owing to temperature differences between rail and concrete, the rail has been pretensioned with a force of 800 kN (800 tons) per rail before being connected to the concrete deck. The force is transferred to the bridge construction by special anchorages at the ends and at the third-part-points of the bridge. The special rail fastening system is described in a subsequent article.

  • Corporate Authors:

    Danish State Railways

    Soelvgade 40
    DK-1349 Copenhagen K,   Denmark 
  • Authors:
    • Rasmussen, M
  • Publication Date: 1980

Language

  • Danish

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 16-17
  • Serial:
    • D S B Bladet
    • Volume: 7
    • Issue Number: 4
    • Publisher: Danish State Railways

Subject/Index Terms

Filing Info

  • Accession Number: 00325915
  • Record Type: Publication
  • Source Agency: International Union of Railways
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM