Work starts this week to lift into place the huge 2,800t waveshaped roof for the London 2012 Olympic Aquatics Centre.
Lifting the Zaha Hadid and Arup-designed structure into place is described by Olympic Delivery Authority chairman
John Armitt as the greatest engineering challenge of the Olympic Park’s construction (see Viewpoint page 17).
Spanning more than 100m, the roof will be supported on just three points, which take the form of concrete cores:
two at the north end and a wall at the south, on which two primary trusses sit.
Contractor Balfour Beatty has erected 15, 120m long steel trusses 20m off the ground by supporting them with three rows of temporary trestles. Once completed and supported by the two northern cores, the roof structure will be lifted 2m above the southern wall, the temporary trestles removed and the full 160m long roof frame lowered on to its permanent southern roof supports.