These are the latest images showing the construction of Anish Kapoor’s and Cecil Balmond’s 115 metre-tall ArcelorMittal Orbit tower on the Olympic Park in east London
Due to complete in December 2011, the project was designed by Arup engineers and Ushida Findlay Architects, with Findlay responsible for the aesthetic and material design of the projects’ architectural elements.
This included the spiral stair, the observation deck, the entry pavilion and the plant compound.
The practice also oversaw the coordination of lighting, the design development of the ground level canopy and ‘crater’ landscape, as well as the coordination of typography throughout and the lift design and access.
The Orbit’s stairs are 450 metres long, 80 metres high, have 455 steps and 45 landings and an overall width of 1500 millimetres. It is framed with stainless steel expanded metal ‘meshscreen’ and the floor is composed of galvanised perforated floor plates.
The structure’s peak is 114.5 metres tall while the observation deck roof level is 84m high, with an upper deck at 80 metres and lower deck at 76.5 metres.
Sponsored by ArcelorMittal, the £19 million structure is constructed from pre-fabricated steel components and features a giant fibreglass canopy at its base.