London: Balfour Beatty, a multinational infrastructure group, will carry out the £41 million ($62.19) new roof configuration of the London 2012 Olympic Stadium, using building information modelling (BIM) techniques to complete the work.
Balfour Beatty used BIM to create a 3D model of the stadium to demonstrate the initial plan of the configuration of the new roof. The roof will be supported by a cable net system. Balfour Beatty will construct the new roof on the floor of the stadium and then hoist it using 56 strand jacks, with cranes within the stadium simultaneously lifting the roof steelwork into position. The new roof, at approximately 45,000 square metres, will be around twice the size of the roof used during the Olympics last year. It will protect the spectators from rain and improve the acoustics for music events.
Source: Balfour Beatty