The works carried out by siurell obra civil consisted of the execution of the structure corresponding to phase 2 of the bank's headquarters complex, as well as the execution of the structure of the building in height "La Vela", reaching 105m from the foundation, with a communications core executed by means of Peri's self-climbing formwork system, and some walls of the side facades with a changing curvature in their entire height executed by means of a climbing system of Alsina. The volume executed is 65,000 m2 of wall formwork and 81,000 m2 of slab.