The project consists in the expansion and renovation of the Institute Policlinico San Donato S.p.A. The functional division of the three elements A, B and C of the building, it is also reflected on the type of the structure adopted, which varies depending on the different architectural requirements. The intervention on the body A was minimal, with some local adaptation. The body B was calibrated in order to respect the functional requirements of the same. The body C, containing very different functions, required the use of different types of structure.