There are many reasons to say that we are looking at an extremely complex project. First, the location, as it is located
in the centre of a large city, the project requires greater planning, agility and restructuring of the space so as to minimise
the impact on its surroundings.
But, above all, the need to preserve the seven façades and the main gallery of two of the buildings, as set out in the regulations
on protection of historic buildings. A requirement that the development company has fully observed and which involved the
use of a unique system to stabilise and prop up the façades on a temporary structure and foundation. To ensure the stability
of the complex, an automated topographic control system monitors any swaying of the façades 24 hours a day.
Once the façades were stabilised, the old interior structure was demolished to make way for the start the new construction
in a bottom-up and top-down process from the subterranean level on temporary supports until the level of maximum excavation
for the definitive foundation was reached. An approach that increases the difficulty of the job but which, in addition to
overcoming the technical constraints imposed by its location next to underground infrastructure elements (subway tunnel and
parking garage on Calle Sevilla), minimises the execution time of the structure and makes it possible to start other activities
on upper floors sooner.
