Third Millennium Bridge over the Ebro River. Zaragoza. Spain

摘要

The way followed from conception to construction of this high strength white concrete arch bridge,rnan urban 216 m span bow-string arch bridge, is described in this paper. The approach to the cityrnneeds, the choice of type and material, the geometric design, the structural solution, the specificrnstudies developed, and the bridge construction, are all explained to show how this outstanding andrnchallenging structure takes bridge design and engineering one step beyond.rnThe experience of Arenas & Asociados and Dr. J.J. Arenas as its main responsible, as authors of thernproject and construction managers in construction site is summarized in this article on thisrnchallenging structure which has been recently awarded with the Gustave Magnel Golden Medalrn2004-2008.