NASC YEARBOOK 2012 | PROJECT NEWS
47
CITY CENTRE SHOP POSES SPACE CHALLENGE
John Lewis, Exeter NASC member: Apex Scaffolding (Exeter) Ltd Main contractor: Midas Construction
uk retail giant john lewis is opening a new store in Exeter and transforming a 1960s building into a modern icon in the process. Apex Scaffolding (Exeter) Ltd has been working with Midas Construction since January 2011 to progress this metamorphosis. The project is challenging, not only because of the scale but also because of the city centre location with virtually no buffer space to the general public.
Refurbishment works to the
45m-high building include demolition of part of the external concrete cladding and re-cladding with a hi-tech, rain-screen system to bring the façade right up to date. Due to the poor condition of this cladding, Apex has had to work closely with design firm Optima to develop a tie pattern which was structurally compliant and matched up with the existing concrete frame. Internal works have required
LISTED CONCRETE BRIDGEPROVES CHALLENGING
Holt Fleet Bridge, Worcester NASC member: Network Scaffolding Contracts Ltd Main contractor: Volker Laser
holt fleet bridge carries the busy A4133 across the River Severn in rural Worcestershire. The bridge, built in 1828, is 46m long, Grade 2 listed and was strengthened in 1927 using reinforced concrete. Recent inspections revealed that remedial work was required including grit blasting the concrete and cast iron structure, repairs to the cast iron elements, re-painting, masonry repairs and concrete repairs. Due to the amount of works to be done, a fully-designed access scaffold was needed. The principle contractor
Volker Laser identified Network Scaffolding as the ideal company for the provision of scaffolding, due to its experience of projects in remote and environmentally sensitive locations and areas of a high public interface across the rail and highways industries. The first problem identified
was the loading capacity of the scaffold and how it would be anchored to the bridge due to the reinforced concrete deck. It was decided that 450mm Apollo beams were to be laced through the diagonal concrete
many heavy duty supports for demolition plant and machinery access, and the tight programme demanded by
the client for an autumn 2012 opening will ensure that the contract moves forward at a rapid pace.
struts every 1.4m across the 6.5m wide structure; tubes were to be hung from the beams to install an additional row of Apollo beams to the underside of the bridge. This created a working platform of 1.5kn/m2
. Special consideration
had to be given to boat traffic and pedestrians who needed access at all times. The lifts run parallel
with the arch of the bridge to ensure clearance for boats. Additional lifts were built up
the face of the bridge with a roof over the parapet down to the pavement. Network Scaffolding sheeted the roof and top lift of scaffold with shrink wrap sheeting to ensure all grit was enclosed within the structure.
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