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The Olympic Stadium has moved into the next sequence of construction as the supports are installed for the seating terraces and the concrete slab is poured to create the podium level.
The first pre-cast concrete rakers, which support the terracing units in the lower bowl, have been lifted into place in the west and south stands. The lower bowl holds the 25,000 permanent seats within the Stadium. Over 200 concrete raker units will be placed, all of which will be pre-cast in an area specifically set-up on the south part of the Olympic Stadium site.
The first 12 of 12,000 pre-cast concrete terracing units on which the spectator seats will later be fixed, are being delivered to site next week from factories in Tallington, Lincolnshire and Henlade, Somerset. The units can weigh up to 10 tonnes in weight and contain 20 per cent recycled concrete.
Over 145 columns, each around five metres in height, have been constructed and 1,300 m3 of concrete has been poured to create the podium slab which will serve as the Stadium’s concourse.
Towards the end of this year, the podium slab around the west and south stands will join up with the ground level on the north and east stands, creating a concourse around the entire Stadium where spectators will circulate.
The ODA’s Olympic Stadium project sponsor, Ian Crockford said: “The Olympic Stadium has been designed to be different with the legacy ambitions driving how we construct the venue. 'To create a Stadium with such a temporary element will be a design and engineering first. The team is rising to the challenge and work is progressing on the ground at an impressive rate.
'Work has begun to the west stand lift shafts, one of which is very nearly complete at second floor level.'
Piling work is complete to the abutments which supports the first of the five pedestrian footbridges over waterways that surround the Stadium site. During the Games this bridge will be one of the main connections for spectators to and from the Stadium to the rest of the Olympic Park.
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Source: London 2012 |
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