Forsyth Barr Stadium, New Zealand
Over 400 Ancon Tension Bars have been installed on the Forsyth Barr stadium in New Zealand to brace the impressive overhead structural steelwork.
This spectacular stadium has pushed the boundaries of venue design. It is the first sports stadium, anywhere in the world, to feature a permanent roof over a natural playing surface.
The galvanised steel tension bars, some of which are 42mm in diameter and 15 metres in length, are installed in the iconic stadium roof and in the South and West stands.
The Ancon system includes bars with a special, high strength, rolled thread which was designed and tested to meet the specific dynamic conditions in the stadium roof, caused by wind loads.
The dimensions of this project are immense. The roof is formed from five arched steel trusses, each with a span of 105metres. At its maximum, it measures 47metres high which is equivalent to a 12 storey building. The main steel truss in the South Stand is 130metres long.
The tension bars were supplied to the structural steel contractor, Grayson Engineering, to meet a demanding site schedule.
The project, known as Otago Stadium during the construction phase, was started in June 2009 and completed in August 2011. Forsyth Barr, a share broking and investment firm, has secured the naming rights to the stadium for the next 10 years. The venue can hold 30,000 people for a pitch event or 35,000 at a concert, and hosted four matches in the 2011 Rugby World Cup.
Ancon is an ASSDA accredited specialist fabricator and has a wealth of experience in working with a range of types and grades of stainless steel.
As a future-oriented, innovative company, Leviat focuses on the ever-changing requirements of the industry, and our latest development combines the portfolio of Ancon and Halfen Tension Systems to ensure we meet the individual requirements of our customers.
We are excited to announce the ICC Evaluation Service (ICC-ES) has issued the first appraisal report in New Zealand to Leviat for Halfen HZA Anchor Channels and HZS Channel Bolts.