I Portali - Gioia 20 - Porta Nuova, Milan
The development is included in the integrated plan for the recovery and functional requalification of the area “Garibaldi-Repubblica” in Milano and in detail of the “Porta Nuova - Gioia 20” plot and consists of two high rise buildings respectively named “Eastern block” and “Western block” which are
The eastern building will house private offices and its height is extended for 24 floors above the ground floor, reaching the elevation of around 104.20m; 4 underground levels are added.
At the elevation 63.60m the building shape features a change because a part of it is cut off and therefore is referred as “low-rise” (LR) while the remaining higher one is referred as “high-rise” (HR).
The western building will house private offices also and its height is extended for 14 floors and a mezzanine above the ground floor, reaching the elevation of around 67.00m; 3 underground levels are added.
At the elevation 31.30m the building shape features a change because a part of it, located at West, is cut off and therefore is referred as“low-rise” (LR) while the remaining higher one is referred ar “high-rise” (HR).
The structure of both the buildings is composed of reinforced concrete with minor parts in steel; the horizontal actions are resisted by cores which protrude from the foundations and are horizontally constrained by the ground floor plate.
In the eastern building the two adjacent cores are interconnected and are extended along the maximum elevation.
In the western building the two cores are separated; the one in the (LR) part is extended for 6 floors only while the one in the (HR) part reaches the maximum elevation.
The r.c. columns have an end hinged scheme and support vertical loads only; the typical floors are constituted by solid r.c. plates 30cm deep, in situ cast and post-tensioned.
In both the buildings the façade pattern is enhanced by the columns which are set at the regular distance of 4m with minor modifications due to the plot dimensions.