The building, in elevation, consists of three underground basement floors: ground fl oor, three above ground fl oors and rooftop. Below the ground level, the general plan of the building accommodates in a rectangular shape plot. Above ground there are three clearly differentiated modules (for showrooms and workshops, a library and auditorium) and its connection modules.
The module for showrooms and workshops is distinguished by a turned plant and it is solved with a metallic structure and steel decking framework..
The library, placed in the central module, is characterized by its double-height areas. In the auditorium module, the amphitheater has been solved with a single14.00 m slope span. Likewise, the mezzanine or former level has also been solved with a single span of 14.00 m and the slope required by the latter two bodies. Like the underground fl oor, it has a reinforced concrete structure placed in situ (rectangular pillars, plants reticular basement and the rest by using solid slabs), with the exception of the frameworks over the auditorium that are solved with 40+10 cm slabs.
It is important to note that the below ground grid of pillars is diff erent from the one over the ground. This fact has forced to dispose a floor slab in the transition (ground floor) so it would be able to bring down the loads from the upper fl oors pillars. This slab was 60cm thick. As to the retaining structure, it is solved by screens and piles anchor, which reach the basement or ground floor, accommodating the slope of the street. The concrete screens serve as support, by pins, to the slabs at level -2 and -1. In addition to its top beam it has perimeter walls and pillars.