Terms & Conditions

Data Security

We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect.

All data is stored in secure electronic systems accessible only to Oasys staff with both valid network login credentials and specific authorisation to access the system.  Our systems further limit data access by role to ensure data is available only to those who have a specific need to see it.

If at any point you suspect or receive a suspicious communication from someone suggesting they work for Oasys or a website claiming to be affiliated with Oasys, please forward the communication to us or report the incident by email to [email protected] or in writing to Oasys, 8 Fitzroy Street, London, UK, W1T 4BJ as soon as possible.

Data Security Notice Updated 27th February 2020

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Website Terms and Conditions

The contents of this web site are protected by copyright and other intellectual property rights under international conventions. No copying of any words, images, graphic representations or other information contained in this web site is permitted without the prior written permission of the webmaster for this site.

Oasys accepts no responsibility for the content of any external site that links to or from this site.

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Software Licensing Terms

Terms and Conditions of Purchase

The full conditions of purchase and maintenance for all Oasys desktop software are set out in the Oasys Software Licence and Support Agreement.

The full conditions of purchase and maintenance for Oasys Gofer and Oasys Giraphe are set out in the Gofer SaaS Agreement  and the Giraphe SaaS agreement.

All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.

Maintenance & Support Services

Support and maintenance is included with all subscription licences for their full duration.

Annual maintenance contracts are available for software under a perpetual licence, prices are based on a percentage of the most recent list price.

This service includes:


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Major structural upgrade to award-winning sporting venue using Oasys GSA: Ken Rosewall Arena, Sydney.

Software Used on this Project

Project Overview

Also known as the Sydney Tennis Centre, the Ken Rosewall Arena is a multi-award-winning venue that hosted the Olympics in Sydney, 2000. The arena was due a renovation to transform it into a covered, all weather, outdoor arena for world-class tennis events, national netball fixtures and many other sporting and entertainment events. Arup engineers used Oasys GSA alongside Rhino and Grasshopper 3D to design and analyse the roof structure for this project.

The main aim of the renovation was to upgrade the roof without comprising the original architectural vision and without increasing any weight on the structure itself. The original structure included a near-circular 24-sided polygon which was 100 meters in diameter, partially recessed into the ground. Raked steel framing and a precast seating plate structure which included a cantilever roof provided gravity support to the rear of the bowl.

Exterior roof construction © Arup 

To utilise the circular form, a radial cable-net roof was provided, making it Australia’s first. The steelwork and canopy were removed and replaced with a new 30-meter compression ring. This was a lightweight rigid structure covered with PTFE fabric that supported lighting, the public address system and raised the vented roof. The structure spans 100 meters and its maximum depth is 7 meters, resulting in the weight being 42 kg/m2, granting significant embodied carbon savings. The new roof is elevated to provide a 4-meter-high space around the perimeter for ventilation purposes and to let in natural light. The roof can be closed using glazed hydraulic doors. 

How Oasys proved invaluable

One of the main challenges the engineers faced during this project was that the geometry had to satisfy the service and architectural constraints, like clearances above the tennis court and the slope of the roof for water drainage. Due to the complexity of the existing structure, a fully digital plan and delivery was adopted.

Existing roof perspective © Arup

New roof perspective © Arup 

Rhino and Grasshopper were used in conjunction with GSA via Geometry Gym. In the first step, Rhino was linked to GSA to ensure the engineers could understand the existing stressed state. The initial form finding was carried out in Grasshopper. The 3D geometry was exported to GSA for the final form finding using non-linear dynamic relaxation, determination of cable prestresses, structural analysis, and member design. Rhino models were used along with the results from the GSA analysis to develop and check 3D finite element models of the connections. These were issued direct to the shop detailers along with annotated 3D views of the models. 

GSA model © Arup

Rapid digital prototyping and form finding allowed the cables for the roof to be ordered 3 months before the structural design was complete. The 12-month programme’s deadline was made possible by use of a digital and parametric workflow as it allowed the structural team to tune cable net geometry and prestress regime in the shortened timeframe. 

Exterior © Arup 

The arena was opened in January 2020, in time for the ATP Cup – one of the world’s biggest tennis tournaments.  

Interior © Arup 

Read the Arup article here. 

Find out more about Oasys GSA here. 

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