Empuje del viaducto de acceso del Puente de la Constitución de 1812 sobre la Bahía de Cádiz

Launching access viaduct of the Constitución de 1812 Bridge over the Cadiz Bay

The deck of the access viaduct from Cádiz of Constitución de 1812 cable-stayed Bridge, with a length of 581,3m and an average width of 33,20m, is a structure of double composite action. The construction process used is the launching of the deck from one side with the aid of a temporary active stay system to save the standard span length of 75m (maximum). The steel section of the deck is pushed with the floor slabs stockpiled on it and a central street of 6m width of the upper slab concreted representing a total weight of 81.000kN.This article describes the main features of the structure of the deck, along with the maneuvers and most significant launching auxiliary elements.