Two identical bridges have been built in the Zarate-Bruzo Largo road over the Palmas and Guazu arms of the River Parana in Argentina. Each bridge has a total length of 550 M, with two equal 110 M side spans carrying a four-lane highway and one railway line on the same deck. The main towers, 120 M high are of rectangular hollow sections built by slipforms. The concrete pile cap is supported by 2 M diameter piles up to 73 M long. Details of the design and method of construction are given. The steel deck is made of continuous longitudinal members of trapezoidal box sections and main transverse members with a plate girder to coincide with the lower anchoring points of cables. Because of the height above the river, long approach viaducts were required. Viaduct support columns are of square hollow section spaced at 65 M intervals. The structure required 360 beams weighing 200 tons to support the railway track and 600 beams each weighing 110 tons for the carriageways. Erection methods requiring some special heavy lifting gear are described. /TRRL/

  • Availability:
  • Corporate Authors:

    Embankment Press Limited

    Building 59, GEC Estate, East Lane
    Wembley, Middlesex HA9 7TQ,   England 
  • Publication Date: 1978-7

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 7-9
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00188312
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 27 1979 12:00AM