Red Stag Reman Building
Our client re-manufactures down grade timber into usable timber. The brief was to build a building primarily out of this timber. The finished building was to house big machinery so it was a requirement that no internal supports or columns were present to provide the absolute best use of space possible. Offices and amenities were to be included alongside the building to assist with the internal operation.
The building size requirement was 45m width (clear span), 110m in length and a Knee height of 8m.
Awards: NZ Timber Design Award, People’s Choice Award (Winner) 2011
Location: Rotorua, New Zealand
Design Categories: Structural Design, Building Design Rationalisation
Case Study Challenges
The ground presented challenges with it being both soft and contaminated.
There was a requirement to ensure the structure had redundancies so that if it was hit by a fork lift or other large piece of machinery it would not collapse.
The timber manufactured by the client was to be used to its maximum level and provide a structure that was economically competitive to build, especially against the structural steel alternative.
Case Study Resolution
The ground issues were overcome by piling the columns and thickening the slab and sub base.
In collaboration with Kanuka Engineered Wood Products (in Hastings) a plan was put into place which would see a resulting feat of engineering which would move glulam timber design into the future.
The timber manufactured by Red Stag was sent down to Hastings, laminated and returned to the site in Rotorua for construction.
By using a unique and innovative truss structure, rather than steel bracing, timber was able to be used in the ceiling as a brace system. Using nail technology simplified construction and erection, whilst maintain a slow slip joint compared with bolting. This also allowed for efficient construction, less intrusive support columns and facilitated services and lighting in an easy fashion. All truss components were pre-cut and fabricated in the factory, then assembled on the building floor before being lifted into place in three parts by cranes. Secondary trusses were incorporated for stability during the lift, and lateral stability of the completed roof structure. This also provided stability in case of damage to bottom chords by large forklift hoists.
Want To Get Technical?
Fabricated brackets – 600
Nails – 320,000
TImber Input – 400m3 MSG7 radiata pine
Plantation Forest Area To Produce – 1.3ha