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Terms & Conditions

Contents

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Privacy and Cookies

Data Security

Website Terms and Conditions

Software Licensing Terms


Privacy and Cookies

We may change this privacy notice from time to time by updating this page.

What information do we collect?

When you use this website, we may collect the following information:

  • the areas of the website that you visit
  • information about your computer, such as which browser you are using, your network location, the type of connection you are using (e.g. broadband, ADSL etc) and your IP address

We do this by using cookies, which are small files that help us track how our visitors use the website and enable us to understand where we can improve your experience. If you would like to find out which cookies we use and the information they track see our Cookies Policy.

Once you submit or register information through our website we will know who you are and your activities on this website and information about you and/or your company may be recorded on our systems. For example, we may ask for personal information when you download our software including:

  • your name
  • company name
  • email address
  • postal address
  • telephone number
  • country where you are based
  • Social media ID
  • your comments/questions
  • services/markets you are interested in

We may also collect personal information from telephone calls and/or other correspondence with you.

What do we do with the information we collect?

The information we capture is used for various purposes. The main purpose is to provide you with our services (whether available via the website or offline). We also use the information for:

  • website development
  • understanding how our visitors interact on the website
  • understanding what our clients are interested in
  • understanding what potential clients are interested in
  • dealing with enquiries/concerns
  • marketing our services and people to you
  • market research
  • service development
  • internal record keeping

Marketing

We would like to provide you with information about our services and other information which we think you may find interesting. We may send you such information by post, email and/or telephone, unless you have asked us not to do so.

We will not provide your personal information to other organisations for marketing purposes without your explicit consent.

If at any time you do not want your information used for direct marketing purposes, please contact us or follow the unsubscribe link in our marketing email messages.

Who do we share this information with?

We may share your personal information with companies acting on our behalf who will only use the information to provide that service. However, we will retain control of your data and any third party service provider that we use must act in accordance with our instructions. We may also share your personal information with a purchaser or potential purchaser of our business.

In some circumstances, we may have to disclose your personal information by law, because a court or the police or other law enforcement agency has asked us for it.

How to get copies of or amend the information we have collected

You may request details of the personal information that we hold about you under data protection laws. If you would like a copy of the information held about you please write to us at oasys@arup.com or at: Data Protection Officer, 13 Fitzroy Street, London, UK, W1T 4BQ. Please note that we may charge a small £10 administration fee for information requests.

If you think any information we have about you is incorrect or incomplete, please email us as soon as possible. We will correct or update any information as soon as we can.

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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, including locked cabinets, electronic password protection and pass card access to buildings.

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.

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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

Twelve months support and maintenance is included with most products. Thereafter maintenance is typically 20% of the current sales price.

An annual maintenance service is available for most programs after the first year.

This service includes:

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

Greta Change Log

All notable changes to Greta will be documented within the change log.

New Features

  • Partial factors added to program.
  • Option for calculated earth pressure coeffcicients using either the CIRIA C516 or Eurocode 7 methods.
  • A number of load cases are now added, including strip, line, rectangular and horizontal surcharge loads.
  • Additional wall types now allowed, including crib, gabion and gravity walls – also allowing for inclined walls.

Fixes

  • Stated FoS pass/fail comment in tabular output is not always consistent with calculated value.
    [NCR 9273] (Fixed 1 April 2016; released in Greta 19.2 SP0 Build 5)
  • Compaction pressure options are not automatically available.
    [NCR 9290] (Fixed 1 April 2016; released in Greta 19.2 SP0 Build 5)
  • Potential for crash in graphics view if passive and active pressures are zero.
    [GRETA-81] (Fixed 19 May 2016; released in Greta 19.2 SP0 Build 6)
  • Optimise base function defaulting to 0 length toe and heel rather than using user specified lengths.
    [GRETA-82] (Fixed 19 May 2016; released in Greta 19.2 SP0 Build 6)
  • For delta and cw program was wrongly expecting user to reduce prior to factoring, rather than factoring then reducing by ratio as per EC7.
    [GRETA-84] (Fixed 19 May 2016; released in Greta 19.2 SP0 Build 6)
  • Potential for errors when calculating the impact of discrete loads offset a significant distance from the wall.
    [GRETA-86] (Fixed 19 May 2016; released in Greta 19.2 SP0 Build 6)
  • For line loads applied over walls the sign of the resultant moment about the toe is reversed.
    [GRETA-88] (Fixed 23 May 2016; released in Greta 19.2 SP0 Build 7)
  • Warning of potentially unreliable results, even when there is clearly no issue with results.
    [GRETA-89] (Fixed 7 June 2016; released in Greta 19.2 SP0 Build 8)
  • Error in calculating the mass of soil in the wall block in isolated cases.
    [GRETA-90] (Fixed 7 June 2016; released in Greta 19.2 SP0 Build 8)
  • [GRETA-91] (Fixed 30 June 2016; released in Greta 19.2 SP0 Build 9)
  • Error calculation of shear and bending for gabion type walls.
    [GRETA-92] (Fixed 30 June 2016; released in Greta 19.2 SP0 Build 9)
  • Further error calculating soil weight in some cases with groundwater.
    [GRETA-93] (Fixed 30 June 2016; released in Greta 19.2 SP0 Build 9)
  • Crash on opening graphical view.
    [GRETA-94] (Fixed 30 June 2016; released in Greta 19.2 SP0 Build 9)
  • Error in pressure profile for strip load at zero offset from wall.
    [GRETA-95] (Fixed 18 July 2016; released in Greta 19.2 SP0 Build 10)
  • Error in display of toolbar.
    [GRETA-96] (Fixed 18 July 2016; released in Greta 19.2 SP0 Build 10)
  • Error calculating total moment on walls with UDL extended over the soil wall block.
    [GRETA-97] (Fixed 21 July 2016; released in Greta 19.2 SP0 Build 11)
  • Errors in tabular output, mislabelled load type, K calculation method and typo errors.
    [GRETA-98] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • Some loads on wall not factored.
    [GRETA-99] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • Inconsistent use of terminology for failure type – sliding or overall.
    [GRETA-100] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • Wall weight not factored for bearing calculation.
    [GRETA-101] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • UDLs in front of wall erroneously acting as destabilising rather than stabilising.
    [GRETA-102] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • Graphical error displaying UDLs in front of wall.
    [GRETA-103] (Fixed 20 Oct 2016; released in Greta 19.2 SP0 Build 12)
  • COM interface not registering.
    [GRETA-105] (Fixed 02 Nov 2016; released in Greta 19.2 SP0 Build 13)
  • Calculation errors where water level above ground surface on retained side.
    [GRETA-106] (Fixed 21 Nov 2016; released in Greta 19.2 SP0 Build 14)
  • Manually entered factors not added when reopening file after saving.
    [GRETA-114] (Fixed 2 Nov 2017; released in Greta 19.2 SP0 Build 17)
  • Error in graphical output where material base is above ground level.
    [GRETA-116] (Fixed 2 Nov 2017; released in Greta 19.2 SP0 Build 17)
  • UDLs located ‘Over’ wall causing crash, warning required as this combination is not intended to be used.
    [GRETA-117] (Fixed 2 Nov 2017; released in Greta 19.2 SP0 Build 17)
  • Error calculating effect of eccentricity for DA1-1.
    [GRETA-118] (Fixed 2 Nov 2017; released in Greta 19.2 SP0 Build 17)
  • Crash in analysis after changing gravity wall geometry.
    [GRETA-122] (Fixed 13 Mar 2018; released in Greta 19.2 SP0 Build 20)
  • Inconsistent use of units in tabular output for overturning check.
    [GRETA-124] (Fixed 13 Mar 2018; released in Greta 19.2 SP0 Build 20)
  • Toolbar buttons disappear when screen text resized.
    [GRETA-125] (Fixed 13 Mar 2018; released in Greta 19.2 SP0 Build 20)
  • Analysis may crash if encounters bug identifying soil areas.
    [GRETA-128] (Fixed 15 Aug 2018; released in Greta 19.2 SP0 Build 21)

New Features

  • Added option to specify either active pressures, at-rest pressures, or user-defined pressures behind wall for structural design calculations.
  • Added a new feature to apply compaction pressures behind wall, that are calculated according to CIRIA design guidance of retaining walls.
  • Added option to specify ground inclination at the front of wall.

Fixes

  • Greta crashes when trying to view the tabular output of results for some files.
    [NCR 7660] (Fixed 29 November 2012; released in Greta 19.1 SP0 Build 9)
  • Units for anchor loads in table view are incorrect.
    [NCR 7950] (Fixed 20 June 2013; released in Greta 19.1 SP0 Build 9)
  • The undrained cohesion is not taken into account in bearing capacity calculations.
    [NCR 8519] (Fixed 30 December 2013; released in Greta 19.1 SP1 Build 10)
  • Warning message boxes during “optimize base” operation need to be disabled.
    [NCR 8683] (Fixed 30 December 2013; released in Greta 19.1 SP1 Build 10)
  • Greta crashes when the user specifies non-zero distance to shear key, but fails to provide dimensions for the shear key.
    [NCR 8684] (Fixed 31 December 2013; released in Greta 19.1 SP1 Build 10)
  • The graphical output shows gap between the soil behind wall and the wall face in some cases.
    [NCR 8686] (Fixed 2 January 2014; released in Greta 19.1 SP1 Build 10)
  • Miscellaneous improvements to graphical output.
    [NCR 8688] (Fixed 6 January 2014; released in Greta 19.1 SP1 Build 10)
  • The FoS for sliding appears to be incorrect.
    [NCR 8690] (Fixed 6 January 2014; released in Greta 19.1 SP1 Build 10)
  • The calculations should be terminated if the net horizontal force is towards heel.
    [NCR 8691] (Fixed 6 January 2014; released in Greta 19.1 SP1 Build 10)

New Features

  • Added new Preferences dialog, Units dialog, Startup dialog and Help menu.

Fixes

  • Calculations of horizontal force from earth pressures on the front side of the wall appear incorrect.
    [NCR 3262] (Fixed 17 December 2009; released in Greta 19.0 Build 1)
  • Bearing capacity computed incorrectly.
    [NCR 3594] (Fixed 08 December 2009; released in Greta 19.0 Build 1)
  • Greta appears to assume ground level to the top of the wall’s toe, in some of its calculations, even if the ground is set to be lower than that.
    [NCR 3961] (Fixed 14 October 2009; released in Greta 19.0 Build 1)
  • The values of dimensionless coefficients “dc” and “dg” are wrongly printed in the tabular output.
    [NCR 4120] (Fixed 03 December 2009; released in Greta 19.0 Build 1)
  • Shear force diagrams are not available.
    [NCR 4371] (Fixed 22 December 2009; released in Greta 19.0 Build 1)
  • Base pressures are not calcualted properly if the resultant horizontal force is zero.
    [NCR 4381] (Fixed 22 December 2009; released in Greta 19.0 Build 1)
  • Scaling is improper for the bending moment diagrams of toe and heel.
    [NCR 4387] (Fixed 22 December 2009; released in Greta 19.0 Build 1)
  • Base Pressures are not written to the file.
    [NCR 4392] (Fixed 24 December 2009; released in Greta 19.0 Build 1)
  • Bigger font button has no effect on tabular output printing.
    [NCR 4798] (Fixed 25 May 2010; released in Greta 19.0 Build 2)
  • Rebuilt to extend expiry date (fixed 2 July 2012; released in 19.0 Build 5)
  • Some numbers in tabular output don’t have correct format.
    [NCR 4425] (Fixed 14 September 2012; released in Greta 19.0 Build 6)
  • Application crashes when user attempts to close it on Windows 7.
    [NCR 4517] (Fixed 13 September 2012; released in Greta 19.0 Build 6)
  • Bearing capacity is negative for certain cases.
    [NCR 4659] (Fixed 14 September 2012; released in Greta 19.0 Build 6)
  • Optimised toe and heel lengths differ, when they shouldn’t, depending on whether the “Include derivation of wall/base forces” checkbox is checked.
    [NCR 5179] (Fixed 14 September 2012; released in Greta 19.0 Build 6)
  • Earth pressures are being calculated incorrectly at the front of wall in some cases.
    [NCR 7410] (Fixed 7 August 2012; released in Greta 19.0 Build 6)

New Features

  • Calculation of ultimate bearing capacity of soil and bearing, sliding and overturning checks have been implemented.
  • A tool for finding the most optimised base width of the wall to achieve full mobilization of soil strength has been implemented.
  • A ‘Gateway’ window has been implemented to provide easy access to input data, tabular data and graphical views.
  • The Greta Toolbar has been implemented to provide easy access to the most frequently used views and commands.
  • The menu structure has been re-arranged to provide a separate ‘Graphics’ menu to access settings for the Graphical Output view.

Fixes

  • Factor of safety taken input only as integers. i.e. factor of 1.5 is treating as 1.
    [NCR 1832] (Fixed 09 August 2007)(Released 13 August 2007 in Release 2)
  • Vertical soil weight on back of wall incorrect
    [NCR 2351] (Fixed 24 December 2007)(Released 24 December 2007 in Release 3)
  • Fixed the error in calculation of Pore water pressure which is leading a low bearing capacity values
    [NCR 2374] (Fixed 24 December 2007)(Released 24 December 2007 in Release 3)
  • Installer rebuilt to extend program expiry date (Released 2 July 2009 in Release 4)

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