The first closure of the Viaduct over the River Narcea (Previous news) has been successfully carried out between spans, by blocking out the cantilevered decks between piers P5 and P6.
A simple design with 4 no. steel profiles was employed. The inferior slab pre-stressing was used, by stressing through the above steel profiles, to avoid having to add additional deck reinforcement to carry the loads produced during concreting of the closing segment, which would be produced principally by the concrete self weight and the thermal gradient through the deck.
Comments : Off
