A new Acute Vascular Imaging Centre (AVIC) has been constructed to serve John Radcliffe Hospital's new cardiology building, part of the Oxford facility's expansion programme. Our structural, civil and building services engineers worked with BAM Construction under a Department of Health ProCure21 framework agreement to design and deliver the imaging centre.
The AVIC site is located in a narrow gap between the cardiology unit and the Accident & Emergency department of the main hospital. Its three-storey concrete frame is structurally independent but linked to the structures on either side at first floor level, and bridges a road used for deliveries and fire access.
Adjacent to the main hospital, ground beams span existing pile caps and below-ground services. Columns on this elevation co-ordinate with the hospital’s plant room openings at ground floor level to enable chillers to be removed on trolleys. Transfer beams at first floor level enable a change in the column line above. On the other side of the building, the cardiac unit's basement and secant retaining walls necessitated careful location of new piles and the use of cantilevered ground beams.
A catheter laboratory and an MRI scanner are housed on the first floor of the AVIC. The scanner’s close proximity to corridors and wards meant appropriate protection had to be incorporated into the fabric. Vibration analysis of the frame was undertaken by our advanced engineering team, and loading allowances are sufficient over the whole floor to allow equipment relocation. Each level of the frame carries its own cladding, and when the scanner needs to be replaced, cladding can be removed to facilitate access.
The second floor of the building houses offices, research space and examination rooms. Plant is located on the top floor.