healthcare build & design special report
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BUILDING PROJECTS
large bay-sized panels, of up to 20 tonnes each, pre-installed with windows, cladding, insulation and internal plaster boarding. Once delivered, the panels were simply lifted into position by tower crane to quickly create a sealed and weather- tight structure. This approach removed the need for men working at height (panels were fixed from inside building so no scaffolding was required on the job) and the need for large numbers of follow on trades. “We’re including the same elements you would find in any
hospital, but taking processes off-site and automating them in a factory environment,” said Stuart McArthur, health sector leader at Laing O’Rourke. “Hospital guidance includes strict Health Technical Memoranda and Health Building Note requirements for infection control in terms of how buildings are put together, so the key innovation has been finding ways to deliver them in a more productive, efficient and quality controlled way.” The maximum size of DfMA components is limited by a
combination of structural requirements and ease of transport on the British road network. Alder Hey in the Park was
designed with a finished floor to floor height of 3.74m, based on the maximum panel size that could be produced, which meant services had to be cleverly designed to fit inside thin ceiling voids. The lower levels of the building are more heavily serviced, incorporating accident and emergency, critical care and surgery departments, so a two-panel system was devised comprising a 3.74m panel stitched to a 0.76m panel to create the deeper floor-to-floor levels required. “When this project was designed, DfMA had never been
used in healthcare to such a great extent before,” said Ged Couser, architect director and healthcare leader at BDP. “All the wet and dry M&E services were prefabricated in the factory [by Crown House Technologies, Laing O’Rourke’s in-house building services unit], delivered in five to ten metre- long modules and plugged together on site, which massively speeded up the process.” The Cancer Centre at Guy’s Hospital is an ambitious
14-storey building designed to bring together the majority of the hospital’s cancer care and research estate under one roof. It comprises a number of stacked ‘care villages’, each one relating Continued overleaf...
Pictured: Crown House Technologies MEP module
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