17-Oct-2021 13:48:43

Incrementally launched steel bridges

For the launching of metal structures, BBR PTE uses the pulling system by means of steel strands. These strands are anchored by one end to the abutment and by the other to hydraulic cylinders, which by resting on the rear section of the structure push it. In the case of downward slope, retaining jacks can be employed. Several systems are used for pile passing, depending on the kind of deck to be launched, such as: lifting by means of hydraulic cylinders, sloping nose and pole type auxiliary structure.


Images gallery

  • Bridge over Deva River in Cortegada (Orense)
  • Bridge over Fluvia River in Olot
  • Bridge over Guadalcacín reservoir (Cádiz)
  • Bridge over Guadiaro River (Cádiz)
  • Sant Andreu de la Bola Viaduct in the Vic-Olot Road (Cataluña)
  • Bridge over Nalón River (Asturias)
  • Viaduct over Las Piedras Stream in the AVE Córdoba –Málaga line.
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Last update: 11/10/2021