Structural Design

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Novotel Spiral Staircase, Auckland International Airport, Auckland, NZ

Compusoft Engineering Ltd. (CEL) 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.


Auckland Tennis Centre Feasibility, Auckland, NZ

Compusoft Engineering Ltd. (CEL) has developed a design to concept stage for the proposed roof structure that is intended to cover the main court and stands of the Auckland Tennis Centre located at 1 Tennis Lane, Auckland. This scheme has been developed in conjunction with Copeland Associates Architects to satisfy the requirements of Auckland Tennis.

The scheme consists of a complete circular dome structure with a central circular opening at its apex. The base of the dome is located at RL15.72m and measures 63.3m diameter in plan. The central opening measures 32m diameter in plan and is located at RL25.42m (i.e. 9.7m differential between the base and apex of the dome). The court is located at RL6.21m. The main dome structure is to be clad using a tensioned membrane system. The dome is to be supported both vertically and laterally at three discrete locations at each of its four quadrants, i.e. twelve (12) support points in total. On the Northern and Eastern quadrant points the dome will be supported by the proposed NGC Building and on the Southern and Western quadrant points it will be supported by dedicated structural steel support systems.

A 3 dimensional finite element analysis model was developed in SAP2000 to assess the response of the structure and develop a preliminary structural scheme. From this model preliminary member sizing was undertaken and the resulting support forces were developed

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Diffuser-Augmented Wind Turbine Analysis and Design, NZ

Compusoft Engineering Ltd. (CEL) was engaged to provide technical support to the Vortec team in the development of prototype diffuser–augmented wind turbines.

Diffuser–Augmented wind turbines are an innovative form of turbine being developed by Vortec Energy Ltd.

Work included; research and development, evaluation of aerodynamic loading, development of a 3-D finite element model (containing approx. 14000 degrees of freedom) of the wind turbine system, steel design, detailing and fatigue analysis.

Various configurations and sizes of turbine were considered with internal turbine diameters varying from 2m for the initial prototype through to 64m.