Curved Bridges

Curved Bridges
  • Bridges

Product Definition

  • Curved bridges made of curved or straight beams, depending on the curvature.
  • Increasing demands with minimal radii. Tendency to use curved beams.
  • Due to the type and width of the deck, box girders are used.

Main Characteristics

  • Demanding layouts with small curvature ratios.
  • Depths from 1.0 to 2.0 m.
  • Thanks to prefabrication, they can be made as simply and quickly as straight bridges.
  • Excellent geometry due to placement of specific moulds for these elements.

Types Of Structures Where It Can Be Used

  • Use in isostatic and statically indeterminate set-ups
  • Made with box girders
  • They can be made with constant or variable depths.
  • For deck widths between 7.0 and 13.0 m.
  • They are solved with only one box girder, with a lower width of 3.30 or 3.96 m.

Main Applications

  • For radii of over 200 m, the approximation along the straight beam, forming a polygonal shape affords excellent results.
  • For radii of less than 200 m, curved beams must be used.
  • Beams with radii between 50 and 200 m are made.
  • So far, Pacadar has achieved curved beams with span lengths over 40 m.


  • Avoids the cost of using costly, complex arch centres in the construction work.
  • Simple deck construction, avoiding complex developments for incrementally launched and progressive cantilever bridges.
  • Substantially shortens the construction period.
  • High quality, rigid moulds are created, permitting excellent geometric shape of the piece.

Construction Details

  • Typical arrangement with a single box girder cross-section.
  • Box lower width of 3.30 or 3.96 m.
  • Most common span length between supports is from 20.0 to 35.0 m.
  • For deck widths between 7.0 and 12.0 m.

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