The Wood Wharf A1 (One Park Drive) development is a 58-storey residential tower with around 468 apartments, the first floor houses an exclusive health club including a 20-metre pool, gym, studio space and spa.
The tower is 205m in height and is the first residential tower to be designed by Herzog & de Meuron, the tower is currently the 10th tallest in London. The development is a landmark residential tower at the east end of the Canary Wharf Estate known as Wood Wharf that will become a residential district serving the Canary Wharf area. Though the building is residential, the design of the building is not usual and many considerations were taken into account from conception through to construction.
Levels 10 through to 32 were designed as post-tensioned by Praeter Engineering, all of the other levels are designed as traditional RC by AKT II. Praeter and AKT II developed the design and the use of post-tensioning to limit the deflections in the cantilevered areas due to the span of the cantilevered areas making it impossible to design as traditional RC without increasing slab depths or adding downstand beams.
In order to speed up the construction process all of the tendons were designed as “panned” tendons that could be stressed from the top of the slab and inside the slab footprint rather than the slab edge as would be the typical scenario. This was a critical point that our client Expanded Structures required due to the already complex nature of the formwork system, this significantly reduced costs of the formwork system.