Description:

• The Spire is 3m in diameter at the base tapering to approx 150mm diameter at the top
• The top of the Spire is perforated to allow for light diffusion from an internal light source
• The Spire is held down on a concrete annular plinth in a ring of holding down bolts
• The plinth is 2.1m high by 1m thick and sits on a 2m deep pile cap
• There are six 900mm diameter reinforced concrete piles arranged in a circle supporting the pile cap
• The overturning moment due to wind is resisted by the push pull action on the piles
• The plinth, pile cap and sump form part of a small underground chamber. Access to the inside of the Spire is gained through the chamber that will house electrical and drainage services in the base of the Spire
• Ventilation to the inside of the Spire will be natural
• There is an internal access ladder to the mass damping system near the top of the Spire