Teror Viaduct in Gran Canaria Island, Spain

Abstract

Teror Viaduct is a bridge located over a difficult-to-reach gorge and was designed keeping in mind the aesthetic requirements so as to achieve the structure’s full integration with the existing landscape.The deck is rigidly fixed to piers and is supported by extra-dosed bracing. The V-shaped piers laterally ‘embrace’ the deck, that is the piers integrate with the deck, forming a monolithic whole as the pylons extend above.The stays supporting the deck penetrate the pylon without friction during construction and are locked in service to withstand the effect produced by differential forces on both sides of the saddles due to the traffic load.The deck was built using the balanced cantilever system starting from the two piers.Following the deck’s construction and prior to the two halves of the deck meeting in the centre and forming a single component, it was left open in the centre of the main span in order to partially reduce the long-term effects due to the concrete’s strain (shrinkage and creep).