Ramboll’s Trada Pavilion, a plywood structure inspired by the efficient curved forms of Frei Otto and Heinz Isler, was unveiled to the public for the first time this week at the Timber Expo 2012. The exhibition is the premier show in the UK for all those involved in the timber sector.
Trada commissioned Ramboll’s computational design team to design the timber pavilion, which was the focal point of the Timber Expo 2012 stand and one of the biggest draws at the exhibition. After this exhibition, the sculpture will showcased again on TRADA’s stand at the 2013 Ecobuild exhibition.
The team set themselves the challenge of creating a planar three-valent mesh approach for the double curved surface, rather than the conventional triangular mesh. A hexagonal mesh has the advantage of fewer connections and greater structural efficiency, but requires coding from scratch and a great deal of research. The final design utilizes techniques from the computer game industry coupled with engineering intuition.
Based on the team’s previous research into funicular form finding, the design uses weak springs to automatically generate a zero bending moment surface, enveloping a large trade stand and allowing the public to circulate underneath. It uses a mesh of thin plywood plates joined via simple expressed hinged pin connections. The structure was modelled with the extensive use of generative 3D systems with the output linked to a CNC router.