The basic idea of the assignment of the access bridges to the new Mall that El Corte Inglés has built in Sanchinarro, Madrid's new expansion neighborhood, was to enhance the appeal of the new facilities with structures endowed with a high architectural essence, in what is being called "structural art" or "structural architecture", with special attention in details.
Taking into account that the investment in this Mall is very high and that the bridges have to save spans among 40 or 45 meters, which are common spans, our approach, which seems quite logical for economic and commercial motives, was to design three access structures, two bridges and a footbridge.
The needing for these structures is caused by the fact that the building and parking structure is surrounded by a trench, like a medieval castle, which is used to sort circulations of delivery vehicles of consumer goods that can be purchased at the Mall.
The first of these structures is a metallic arch bridge with 46.5m of span, which can be positioned into the bowstring bridges typology.
In its arrival to the mall, the arch is divided in two elements which rest on the supports, so as the final transversal separation is of 40m, the bridge enters into a new tridimensional category, with a “Y” plan view.
This approach to the geometry of the bridge is far away to be capricious, as it is the natural answer to the surrounding conditionings, which an only arch could not ever had fulfilled.