"The structure of the AGBAR Tower" Concreto Conference 2006, Cartagena de Indias, Colombia, 2006
2006
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The design and construction of the AGBAR tower in Barcelona, at the time, the new headquarters of the Aguas de Barcelona business group, was possible, especially in its most singular aspects, thanks to an innovative and daring revision of the tools available at that time, in a more or less habitual way, the technology of the construction of our environment; one of the most remarkable aspects in this sense was, undoubtedly, that of its resistant framework.

The tower consists of a building with a height of 141.5 meters above the elevation level, which makes it one of the three largest buildings in the city of Barcelona. The floors, of more or less elliptical geometry, have main axles of 39.40 meters and 35.42 meters. It is, therefore, a cylindrical body that in the final part closes on itself like a bullet. The loads flow to the foundation, mainly via two cylinders of reinforced concrete: one, external, defined by the own limits of the building volume and, another, interior, of a smaller section, that is not concentric with the previous one. The exterior wall shows, at the outset, a determining characteristic that provokes the special singularity of the projected structure: the approach established in the architectural project for this element, consisting of the placement of the openings (windows) in an apparently random manner.

The conference explains the mechanical and constructive keys of the whole structure of the tower, beginning with the excavation and finishing with the dome which presents the cusp.



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