Structural Analysis & Design


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Eden Park Rugby World Cup 2011 Temporary West Stand, Auckland, New Zealand

Compusoft Engineering was engaged to undertake an analysis of the temporary seating for Eden Park's temporary West Stand for the 2011 Rugby World Cup. 

The analysis scenarios considered dynamic behaviour and strength limit states for live, wind and seismic type conditions. 

The analyses consider the nonlinear behaviour of support uplift and member elastic buckling behaviour plus the limitations of the adopted proprietary connections.  Analysis models were been created using SAP2000 Advanced (Version 14) finite element analysis program.  


Northland Events Centre Roof,  Whangarei, New Zealand

Type of Fabric: Ferrari 1002 T2

Northland Events Centre is a multipurpose sports centre and events.

Compusoft Engineering were engaged to design the 96m x 21m fabric roof and associated steelwork over the grandstand and corporate hospitality areas.

Work included scheme development, detailed design work, co-ordination with external professionals and the production of fabrication drawings.

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Rock Anchored Turbine Foundation, Snowtown Windfarm, South Australia

Compusoft Engineering was engaged to undertake the analysis and design of a rock anchored foundation intended to support a  Wind Turbine with an 80 m hub height and located at the Snowtown Windfarm, South Australia.  

The structure  is a reinforced concrete rock anchored foundation for a prototype wind turbine to be located at the Snowtown Wind Farm, which is situated approximately 180 km north of Adelaide in South Australia.  

The turbine shaft is comprised of a circular steel tower which is anchored to the foundation by a double ring of 160 post-tensioned holding down bolts embedded in the reinforced concrete foundation.  

The foundation consists of an octagonal reinforced concrete pad anchored to the ground by eight post-tensioned cable anchors.  The cap is octagonal in shape, with the dimension across the flats being 7.2 m.  The eight anchors are situated so one is located along each of the lines running from the centre of the cap to the apex of the corners.  Each anchor consists of thirteen 15.7 mm nominal diameter prestressing strands with a minimum breaking stress of 1860 MPa, and has an unbonded length of 10 m below the anchor head.  The anchors were initially be stressed to a force of 2660 kN, which has been estimated to result in a final prestress level after all losses of 2250 kN.


Novotel Spiral Staircase, Auckland International Airport, Auckland, New Zealand

Compusoft Engineering was engaged to design a spiral staircase and adjacent landings that connected two upper floors with a ground floor within the proposed Tainui Auckland Airport Hotel.

The staircase was designed as a self supporting element relying on torsional stiffness to provide support with some additional support being derived from the two upper adjacent landings.

The staircase was fabricated from mild steel plate as a single element transported to site and attached to the landings.

The overall performance of the structure was assessed using the 3D finite element analysis program SAP2000.