Japan National Stadium Competition Entry, Tokyo, Japan
In association with Lacoste + Stevenson
In this design, a new enclosing bowl and translucent roof are lifted, so that the interior is seen from the outside. Struts support a series of cantilever roof sections which provide a ring of ‘water lily’ elements, organically inspired. Such segments are mimetic intentionally, like ‘wings of flight’ roofing the outer ring. Clad in EFTE will shelter and shade is provided. A twin fabric is supported by a tubular steel tracery, a perimeter necklace structure that holds a compression ring in place above the field.
One idea was to float a cloud-like raft of helium balloons, each 23 metres in diameter. Its customary position some 300 metres above the roof, thus allowing grass to grow on the field below. Our sustainable design objective was initiated by the idea of a meeting of the parklands to create a metaphorical landscape carpet on top of the stadium and retail functions that require only passive sunlight, thus allowing for a greater proportion of public open space and as much planting of trees as possible.