Nuevo método de lanzamiento de puentes metálicos basado en doble cajón colaborantesimulación numérica estructural y experimentación aerodinámica

Abstract

During the bridge launching stage, the structure must resist different and bigger efforts (higher than those of its lifespan) as the process goes forward. Nowadays this efficient building system is limited by the maximum long span of the bridge and the patch loading phenomenon in slender steel webs. This Thesis designs and optimizes a new steel bridge launching method and a continuous pushing system. The challenge is to get a length of about 150 m, therefore the lateral span of the structure is used on the weakest cross sections during the launching. In this way, auxiliary means will not be needed and wasted time can be reduced. The new system allows to compete against another construction systems when a bridge has to be erected (basically cantilever or movable scaffolding for prestressed concrete bridges).