Superlative Formwork

This article discusses how the latest formwork solutions are enabling some tough bridge-building projects that are to be delivered in South America and Europe. Taking a road and rail link across one of South America’s largest rivers, together with its swamps and floodplain, calls for a new crossing of superlative dimensions. Two 135.5m pylons for the third bridge across the Orinoco River in Venezuela are taking shape through the use of a formwork solution and automatic climbing technology. The Venezuelan government is investing in this showcase bridge project at Caicara del Orinoco. The bridge will have an overall length of 11.125km once completed, which is scheduled for 2015. The main bridge is 2.28km long, and the roadway is 55m above the water level of the Orinoco. The two identical diamond-shaped pylons of the 360m main span will be the center piece of this high-capacity road and rail link. With certain minor differences, the two 135.5m tall pylons are said to be largely the same. They incline at an 18° angle below the cross-beam, and at 13° above it. The most difficult aspects to deal with in the planning work were the changes in the cross-section, the catwalk between the legs of each pylon, and incorporating an extra suspended platform to provide access to the passenger hoist.

Language

  • English

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Filing Info

  • Accession Number: 01482887
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 2013 12:02PM