Open Building in Health Care Architecture: The Case of the Ino Project in Bern, Switzerland

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The west surgery wing of the University Hospital “Insel” in Bern, which was completed in 1971, no longer meets operational requirements. A decision was made in 1995 that it must be completely renovated. The INO renovation project embraces in particular the Intensive care, Emergency and Surgery Centre. The Building Department of the Canton of Bern, which is responsible for overseeing construction work on the Insel hospital, is pursuing an open building method for the INO project to ensure that the “serviced structure” of the building (with main utility infrastructure) will continue to be highly adaptable, and that the components of the building are interchangeable and reusable. Building sections with differing service lives and designated purposes are therefore kept consistently separate in the planning and execution phases. The use of separate (discrete) systems anticipates the long-term life cycle of the building, and thus safeguards its value in terms of future use. Work is divided into discrete system levels: the primary system (building shell) is designed for a service life of 50 to 100 years, the secondary system (fit-out) for 15 to 50 years and the tertiary system (hospital equipment) for 5 to 15 years. The project is currently in the execution phase and is being developed in three stages. The 1st stage, the primary system, was completed at the end of 2002, the other stages have not yet been implemented. The 1st stage of the INO project is to go into operation by 2006 and the 2nd stage by 2009.