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Bespoke Staircases

Case Studies

Moberly House, University of Exeter

Spiral UK has completed work for Vinci Construction UK on a project to install four external spiral staircases on student accommodation for the University of Exeter.

Moberly House on the western side of Streatham campus has been demolished and rebuild to create new student residences. Developed by the University Partnership Programme (UPP) the building will provide 251 single standard bedroom accommodation in flats of 8-10 students.

External spiral staircase with enclosure
External spiral staircase with enclosure

We have designed, manufactured and installed steel spiral staircases, as a means of escape, on four corners of the H shaped building. They are significant structures rising over 11 metres with five landings and a roof canopy. As well as a security enclosure.

All four escape stairs were compliant with a Category E Public stair defined by BS5395 Part II as to be used by large numbers of people at one time e.g. stairs in places of public assembly.

Project:
Moberly House, University of Exeter
Requirement:
Four large external spiral staircases
Contractor:
Vinci Construction UK Building Division
Architect:
Willmore Iles Architects
Staircase Category:
E

Steel spiral staircase

The external spiral staircase on building A, like all the steel spiral stairs we provided, was made up of five special landings, a large canopy roof covering the footprint of the stairs at the top, and an enclosure of tubular uprights for the safety of students and security. A gate at ground level provided an outward opening and an external key entry.

We fabricated the spiral stairs and enclosure in our factory in Helston and one of our, UK wide, team of fitters installed the stairs on site.

At a glance

Floor to floor height: 3000mm + 3150mm + 2850 + 2850mm
Spiral diameter: 2500mm
Risers: 18 @ 183.3mm, 2 @ 150mm, 60 @ 190mm
Tread radius: 71 @ 1250mm
Clear tread width: 1000mm
Tread type: 4.5mm durbar plate
Balustrade: 2 @ 22mm Steel tubular balusters per tread, 40mm x 6mm flat bar handrail capped with PVC
Landings: 5 x special shaped landings in 3mm durbar plate
Additional: 27mm diameter circular hollow section CHS vertical upright enclosure with security gate at ground level
Steel spiral staircase
Fire escape spiral staircase
Two external spiral staircases
Roof canopy installation
spiral fire escape stair housing
Installation of external spiral stairs
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