Panopticons
The architectural competition, for “all-seeing” structures on a number of derelict,
high-point sites, was organised by Mid-Pennine Arts, for the regeneration of the Lancashire Regional Park. These sites all command outstanding views of the countryside. The brief was for a landmark and a shelter, a place from which the public can enjoy the landscape. The aim is to draw city residents into the beautiful landscape that surrounds them.
Crown Point
The Crown Point site above Burnley, with a brick shed and two radio masts, has long been an eye sore visible from the surrounding towns. Our proposal replaced the shed and the masts. To maximize visibility, the base was raised by building on the lower part of the brick shed. The top half of the shed was demolished, the rubble formed the hard core onto which a concrete base was made. The mound was then covered with soil and turf. New fenced paths were created through the boggy landscape.

Make the Wind Sing
From Burnley the tree’s profile will be visible on the horizon. It will appear and disappear in the mist. As the wind blows the tree begins to sing. Stories of its song would pass from mouth to ear. In cars and on foot people would make their way from the city and up the hill. The journey would be made to hear the wind make music with the singing ringing tree.
Keep the Structure Light
The tubes are arranged in such a way that the weight of each layer is transferred by steel rings to that are bolted together by horizontal bolt in shear to the layer below. The rings also act to tie the tubes in each plane to each other. As the layers are rotated slightly one to the next this twist provides horizontal in-plane bracing. The ends of the tubes simply cantilever past the lines of support provided by the rings-in effect the rings and tubes provide a load path for the weight of the tubes down to the foundation.

Reflect the sky
Mild steel comes in a variety of size with walls of variable thickness. This gave us the variability to develop the structure and sound. Being heavier, the fabrication process is more difficult but the weight helps with the mass required to resist overturning under wind load and live loads and due to the asymmetric form.. Unlike stainless steel or aluminium, mild steel can be relatively cheaply welded. To prevent rusting the steel will need to be galvanised. This will give a shiny appearance when the construction is new, and will dull slightly over time while still reflecting light in an interesting way.
Lengths are wavelengths
The tree is constructed of stacked pipes of varying lengths. Each layer differs from the next by 15 degrees to respond to the changing wind directions. As the wind passes different length pipes in different layers it will play different chords. Each time you sit under the tree you will hear a different song.

Team:
Project Architect: Mike Tonkin
Design Team: Mike Tonkin, Anna Liu, Robert Urbanek-Zeller, Emu Masuyama, Dan Knight, Yuko Nanno
Structural Engineer: Jane Wernick Assoicates
Fabrication Mike Smith Studio
Environmental Engineer: Archineers
Quantity Surveyor: KHK Group
Groundworks and Project Management: Burnley Borough Council

Materials used:
Sculpture: Mike Smith Studio
