Industry

Bovisa, so the gasometers change their skin

Urbanism. One of the two structures has been restored and will be faithfully re-assembled to the original artefact: the project, curated by the Piano studio, is part of the expansion of the Politecnico campus and will house buildings for residential use for students

by Maria Chiara Voci

3' min read

3' min read

Pto dismantle the 360 vertical, horizontal and diagonal steel trusses of the 18 bays on four levels plus the three balconies above the drum of Gasometro 2 in Milan's Bovisa district, where the future Politecnico campus will be built, took two months.

Between July and August, the first phase of the building site on the Gasometer Park was completed: a delicate and technological intervention, because the structure, dating back to the early 20th century, once restored, will be reassembled, faithful to the original artefact. No longer as an infrastructure for measuring the volume of gas in the city (a purpose now disused), but as the historical and constrained frame of a new building, which will be inserted inside the steel hoops and will house offices and educational laboratories for start-ups as well as one of the largest clean rooms for precision experiments in Europe..

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"This is an ambitious project,' says Emilio Faroldi, deputy vice chancellor of the Politecnico di Milano, 'with a high cultural and memorial value, aimed at handing down to the future the precious legacy of the past. The restoration and enhancement work, which is technically sophisticated and unique in its kind, will allow our generation to stand in continuity with the history of an emblematic piece of industrial archaeology, opposing the inevitable process of deterioration and ageing that the passage of time always entails'.

From the outset, the Politecnico's (the commissioner of the work) firm intention was to operate a targeted action of re-functionalisation of the existing building, by means of a philological approach capable of restoring the steel structure, now compromised, avoiding soil consumption and grafting new contemporary functions into an area that is today fragile and environmentally precious, so as to restore lifeblood and economy to a monument of the collective imagination, projecting it into the future. "The history of Bovisa," Faroldi continues, "coincides with that of its gasometers. Creating a perspective of contemporaneity and functional revisitation subtends the will to provide the city with the survival and physical and social regeneration of one of the most significant and exciting parts of the Milanese urban fabric'.

Gasometre 2, together with Gasometre 1, which is also being restored without being dismantled, is part of a broader project for the Politecnico's Bovisa-Goccia campus, which envisages the construction of several volumes, including residential housing for students, according to the master plan designed by the Renzo Piano Building Workshop, as well as the regeneration of the park area in which more than 16,000 trees will be planted, cycle and pedestrian paths will be created and the interconnection with the Bovisa and Villapizzone railway stations will be renewed.

At Gasometer 2, as mentioned, a 19,000 square metre building will be constructed with nine floors of offices, laboratories and start-up spaces. Gasometer 1, on the other hand, will host sports functions. The project, co-financed by the Politecnico and the Region, is worth about 50 million euro and is scheduled to be completed by 2025. The works, supervised by the Superintendency, which has authorised them, were entrusted to Conscoop and Consorzio Integra and to the contractors CMSA and Formula Servizi, while the project, developed in the final phase on the RMBW concept by architect Paolo Bodega, Milan Ingegneria and Betaprogetti, was engineered and brought to the executive phase by Mate, one of the top 15 architecture studios in Italy in terms of business volume, with offices in Bologna, Milan and the province of Treviso. "The disassembly and reassembly of an existing gasometer is a world first," comment Maurizio Pavani and Carlo Pirola, design managers for Mate. The difficulty lies in several aspects, starting with the disassembly process entrusted to the specialised company Sacif, a phase in which it was necessary to prevent the risk of portions of the structure collapsing. In addition, the original structure is built with the same technology as the Milan Central Station, i.e. with nailing of overlapping sheets, as was in use at the time of construction. Where not yet replaced, all the original nodes will be restored. The pylons, which have been taken to the factory for sandblasting, galvanising and painting, have been numbered and will be repositioned in about four months' time. In the meantime, the scaffolding for the restoration of Gasometer 2 is being erected and work on strengthening the foundations and creating an underground volume will begin. "Finally," they continue from Mate, "the aluminium and curved glass mock-up of the future façade has been realised. All the construction site phases are documented by the Polytechnic by Marco Introini's shots, to keep alive the memory not only of the building but of the processes that are leading to the transformation of the area. A sign of how in respect of history the territory can and must be renewed.

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