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Safety of operatives working at slab edges will be ensured by utilizing a screening system.
The working level and one or two levels immediately below are completely enclosed by the panels. Site personnel are protected at all times form falling and from strong winds when working at height.
Platform and screen elements are assembled in units of approximately 6m long and raised from level to level using either the tower crane or the same hydraulic equipment that is used for the jump form.
A foldable cover flap at the foot of the protection panel prevents objects and debris falling off and therefore enables external cladding activities to start earlier as a result.
Edge protection left in position for following trades is secured in position behind the lower screen level prior to raising the units and removed progressively from each level as the cladding is installed.
Screens will need to be designed to overcome the double storey height locations where there is no floor slab to attach the shoes. Crane ties and hoist landings provide a further challenge when design the climbing screens. The proximity of the hoist cages to the slab edge may prevent the use of screens and an alternative edge protection will be required.
The mobile self-climbing device and hydraulic pump allow crane-independent climbing as and when necessary. With this concept, the cost of self-climbing technology has been minimised as well as ensuring cost effective implementation for structures with lower heights.
Islington, London
Construction of 60,000 seater concrete framed stadium.
