Terms & Conditions

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Data Security

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Software Licensing Terms


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 oasys@arup.com or in writing to Oasys, 13 Fitzroy Street, London, UK, W1T 4BQ 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 software are set out in the Oasys Software Licence and Support 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Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.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

  • telephone/email/web based support
  • free software updates available via internet download
  • personalised output header for many products

Modelling Cyclic Loading of Piled Foundations

Software Used on this Project

Project Overview

Cyclic loading of piled foundations has been the object of considerable research since the 1980s due to the use of piles for offshore oil and gas platforms and, more recently, offshore windfarms. Onshore piles are also presenting design challenges, as they are increasingly being used as an integral part of ground source heating and cooling systems, which results in cyclic thermal expansion and contraction.

Paul Bailie’s winning work was based on research carried out as part of his MSc at Imperial College, London. His work was also selected for presentation at the 2016 British Geotechnical Association’s Young Engineers Symposium.

How Oasys proved invaluable

Paul developed a numerical model to study pile behaviour under axial cyclic loading from both mechanical loading and thermal loading.

He showed how the t-z model had been implemented into Oasys Pile, illustrating his approach with comparisons between London Clay pile cyclic load test results and modelled pile behaviour. These comparisons determined how well the logarithmic t-z formulation represents real cyclic pile behaviour, and established the typical range of the parameters used in the model.

The Oasys Pile analysis presented in the competition submission made use of the recently implemented load-transfer (t-z) method on the settlement side of the program to study the performance of two test piles subjected to various axial cyclic loading conditions.

Pile Outputs

The soil parameters for the London Clay geology were based on available ground investigation data as well as typical values used for this material.  Staged loading of the piles, including mechanical and thermal loading cycles, was input to match the cyclic loading and heating/cooling cycles applied to the test piles.

After comparing the pile head displacements from the Oasys Pile analysis to the displacements measured during pile load testing, we varied the curve fitting parameters for the logarithmic t-z curves (displacement to peak stress and the yield parameter) until a good match between modelled and real pile performance was found.

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