Terms & Conditions

Contents

Software Licensing Terms

Data Security

Website Terms and Conditions


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Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.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

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, 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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GSA — Structural Design & Analysis Software

Oasys GSA is a comprehensive structural analysis program with versatile design capabilities. 

Oasys GSA

With Oasys GSA, you can analyse the structural design of any structure which needs to be iterated through many cycles of geometry definition, internal force analysis and code design. GSA gives engineers a versatile analysis and design software that integrates well within traditional and parametric workflows.  

Why should I buy it?

Engineers who analyse and design anything from small structures to complex buildings use Oasys GSA.  

With a wide range of analysis options including a model debugging stability analysis, modal analysis, linear buckling, footfall vibration analysis, explicit nonlinear analysis and form-finding capabilities to meet the demands of any project, GSA allows the user to manipulate and check the model. Bidirectional interoperability with many industry-standard software packages including Revit and Grasshopper allows the software to work seamlessly with traditional and parametric workflows. APIs connect to developer’s scripts. With GSA, versatile design capabilities such as slab bending and axial reinforcement can be calculated for any geometric shape (even curved slabs) with rebar oriented at any angle in the plane of the slab, or steel design checks (including automatic unbraced length calculations) and optimization can be carried out for a large variety of section profiles and codes. There is a customizable set of saved graphical outputs that can be directed printed to calculation packages. 

A wide range of analysis options:

  1. Oasys GSA provides simple and advanced structural analysis of any structure.
  2. GSA enables steel frame and concrete slab design to many design codes.
  3. GSA integrates with Revit, Grasshopper, LS-DYNA, OpenSees and IDEAStatiCa.

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Capabilities of the GSA

Form finding

Finding the correct geometry and prestress forces for tension only structures such as fabric structures, fabric roofs and cable nets is crucial: mistakes lead to wrinkles, flapping, and ponding problems. While some programs will generate geometry that looks nice, GSA will find the geometry that is right. GSA gives you the control to offset the effects of fabric to cable prestress, radial to circumferential stresses, and more.

GSA also enables you to generate the organic geometry for compression-only structures such as grid shells and slender arches.

GSA uses its powerful dynamic relaxation non-linear solver to form find using soap film, force density and structural properties to find the optimum structural arrangement, and then analyse and design it to all the serviceability and ultimate loads.

As designs become more efficient, the resulting structures get lighter and more responsive to human induced vibrations. This means that footfall induced vibration is becoming an important serviceability design requirement for office and residential buildings, foot bridges and staircases: it is an essential requirement for demanding situations such as hospitals, footbridges and laboratories.

GSA enables you to find the footfall response over the whole structure, with full contour plots and detailed graphs showing exactly where the satisfactory and problem areas are. You can thus explore cost-effective design solutions and advise you client on how their structure will respond to human induced vibration.

GSA is perfect for busy foundation designers as it enables you to analyse how your structure interacts with the ground for optimum design. This easy-to-use software combines non-linear structural and geotechnical models to calculate accurate settlements, soil pressures, bending moments and other structural stresses in a fraction of the time.

GSA adds the acclaimed Oasys Pdisp soil pressure displacement engine to GSA Suite’s finite element analysis. The structure then interacts with the ground via piles, rafts or pads so they both work together to carry the load, whatever the structure, whatever the soil. GSA also integrates with Pdisp, importing soil models and exports results for further geotechnical investigation.

Calculate the reinforcement requirements for concrete slabs and walls to international design codes:

  • Australia: AS 4100:1998
  • Eurocode: EN 1993-1-1:2005 Eurocode 3 (including French, Dutch, German, UK, Singapore, and UK fire annexes)
  • Hong Kong: HKSUOS:05 & 11
  • India: ISS 800:1984 & 2007
  • UK: BS 5950-1:2000
  • US: AISC LRFD3, AISC 05 ASD & LRFD, AISC 10 ASD & LRFD
  • South African: SANS 10162-1:2011
  • Generic: Stress check

Results are available in various forms, including numeric utilization ratios and calculations as rich text. The different forms of result available mean that the user can avoid information overload, but can still audit the calculations at a very basic level when appropriate. Utilization ratios can be plotted (contoured) on the model just like any other numeric result, so enabling rapid understanding of which parts of a structure are overstressed or are over designed. Calculation results are marked up in colour to draw attention to problems and important results within the calculations.

Analyse structures with large deflections, plastic yielding of materials, snap-through, sway effects, and more. GSA uses the dynamic relaxation method to enable you to analyse structures that other programs will not touch.

GSA enables you to calculate the buckling load factors on a range of structures, from complex frames to shell structures and lateral torsional buckling of plate girders. It also includes non-linear buckling effects so you can plot the deflections of columns and struts against load to accurately assess safety factors.

GSA includes both modal analysis for calculation of the natural dynamic frequencies of your structure and Ritz analysis specially designed for seismic response calculations. You can choose to include axial load effects to change stiffness in both these methods.

Following on from the modal or Ritz analysis, GSA enables you to calculate the structural response using a number of dynamic post processors, including seismic response to multiple international codes, linear time history, harmonic loads for vibrating machinery, and more.

Advanced interface

The graphics facility in GSA is designed to feel spontaneous in response to the commands of the user. Various single key commands have the effect of producing standard views, adjusting the orientation, scale and content of the drawn structure, windowing, zooming, labelling and annotating the display. Dynamic viewing and animation of results provide powerful tools to aid you in understanding the behaviour of the structure. Graphical output can be sent to a printer or in DXF format for exporting directly to CAD systems

Modelling tools

For regular structures, a Data Generation wizard will allow the user to specify the structure in terms of few key parameters and automatically generate the model data. For more complex structures structural geometry and loading data may be input through either the graphical data generator (“Sculpt”) or a more traditional spreadsheet format, which enables all structural geometry to be rapidly generated and edited.

 

When the structure is complete, all loading may be similarly generated and displayed diagrammatically.

 

3rd party links

GSA includes a bi-directional link between GSA & Revit 2015 and 2014, Revit Structure 2013 & Revit Structure 2012. With this Revit users can transfer model information between Revit and GSA with minimal loss of data.

 

Data from tables can be transferred to and from spreadsheets using the standard cut and paste facilities. The GWA file (ASCII data file) is written as a tab-separated file to facilitate input into spreadsheet programs

 

Import options

  • AutoCAD DWG / DXF
  • CIMsteel CIS/1
  • Revit Structure (see below)
  • Pdisp

Export options

  • ADC
  • ASAS
  • AutoCAD DWG / DXF
  • CIMsteel CIS/1
  • LS-DYNA
  • NASTRAN
  • OpenSees
  • Revit Structure (see below)
  • SAP2000
  • Steel Member CSV
  • Pdisp

 

Nonlinear elements and materials

Compression-only struts, tension-only ties, non-linear springs, and cables. Elastic-Orthotropic and Elastic-Plastic Isotropic materials.

COM Interface

COM interface enables GSA to be driven from a spreadsheet macro or other external program. In addition, the command line interface enables GSA to be driven from batch files

 

GSA analysis types

GSA offers a wide range of structural analysis types

  • Static analysis
    • Linear Static
    • Static P-delta (p-delta by own load case, different load case, or previous analysis case)
    • Non-linear static
  • Dynamic analysis
    • Modal
    • Modal P-delta
    • Ritz
    • Ritz P-delta
  • Dynamic Response
    • Response spectrum
    • Harmonic
    • Linear Time History
    • Footfall
  • Buckling
    • Modal / eigenvalue
    • Non-linear member buckling
  • Mass analysis
  • Form Finding
  • Analysis envelope
  • Model stability diagnostic analysis

 

Bridge loading and optimisation     

Automated bridge loading to:

  • Australia: AS 5100 2, M1600, S1600, M1600-Triaxle, SM1600
  • Eurocode: EC1 UK, generic, user defined
  • Hong Kong: SDM
  • UK: – BD37, BD24 HB, BD86 SV TT / Train / 150 / 100 / 80, UIC71, RU, RL, SW/0, SW/2, HA, HB, SV
  • US: AASHTO 17, LRFD 3, H20-44, HS20-44. HL-93

Path and vehicle loading to

  • Australian Highway Loading: M1600, S1600, M1600-Triaxial, SM1600
    • Non-linear analysis of foils and fabrics
    • Zero thickness elements with optional tension only capacity
      • Soap film for fabric structures
      • Force density for cable net structures
      • Applied force for pure compression or tension structures
      • Geodesic, Bar and Free spacer elements
      • Spacer forces from form finding saved as prestress forces for static analysisCombine fabric elements with structural cables and members
        • Eurocode Loading: Generic, UK, user defined
        • UIC and UK Railway Loading: UIC71, RU, RL, SW/0, SW/2
        • UK and HK Highway Design Loading: HA, HB
        • US Assessment Loading: SV
        • US Highway Loading: H20-44, HS-20-44, HL-93

         

        Footfall analysis – further detail      

        Sensitivity to vibration is becoming increasingly significant as advances in structural design result in lighter structures; the lighter the structure the more sensitive it is to induced vibration.

         

        Footfall analysis methods

        • Arup / Concrete centre method – Concrete Centre CCIP-016
        • Steel Construction Institute – P354
        • American Institute of Steel Construction – Steel Design Guide 11
        • Staircase method – CCIP-016 & SCI P354

         

        Form-finding  and fabric analysis

        Dynamic relaxation method with the following options

      • Fabric analysis

    GSA SwitchKeys utility

    A small utility to allow those customers who have multiple variants of GSA shared licences to easily swap between them. Read more about the SwitchKey utility

Explore GSA Applications

Modules in the Suite

GSA Bridge

The perfect tool for busy bridge designers, GSA Bridge automates the optimisation of bridge loads (such as vehicle and lane loading) to a variety of international codes and checks for pedestrian footfall vibration. With a wide range of structural analysis types and 3D and 2D graphics for post-processing, bridge design analysis has never been easier.

Find out more »

GSA Analysis

GSA Analysis is used around the globe on all manner of projects. It provides engineers with a highly intuitive nonlinear analysis software tool to help realise the potential of design, no matter the challenges.

Find out more »

GSA Building

GSA Building is part of the Oasys General Structural Engineering suite and combines steel and concrete design, footfall, and soil-structure interaction analysis in the same building design software package. With this intuitive software, you can design structural models with skeletal frames and two-dimensional finite elements, enabling you to design and analyse even the most complex buildings.

Find out more »

Marina Bay Sands, Singapore

View Case Study »

Request a Trial Submission Form

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Further Information

The trials are limited for 14 days only, and there is no functional limitation. During the evaluation period you will only be able to use the software for test purposes and not for commercial paid work, and for the duration we will support you to get the most out of your test. System requirements can be found in the FAQs.

All we ask from you are some details so we can contact you to issue you with the installation file.

Once you submit your details, a customer service agent will contact you and provide the free trial installer.

Existing customers who are fully maintained can download the latest versions of their software on demand from their personalised customer licensing portal.

Your login ID and Password for the portal is not the same as your website account. You can find your login details in your purchase confirmation email. Alternatively you can request for your login details to be sent to you by emailing [email protected].

We offer a limited-duration trial license for you to assess the suitability of our products for your projects.

During the evaluation period you will only be able to use the software for test purposes and not for commercial paid work, and for the duration we will support you to get the most out of your trial.

All we ask from you is some details so we can decide whether you are eligible for a trial.

Compatible with most modern day Windows operating systems.

The full conditions of purchase and maintenance 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.

By completing and submitting this form you consent to Oasys Limited storing and processing the personal data you have provided. We will use this information to keep you updated about the products requested for customer service and sales analysis. We do not pass your details to third parties to use. For more information visit our privacy policy. You may opt-out at any time by emailing [email protected].

Please select what type of licence you would like to purchase

GSA

USD $1,351.23USD $5,035.91

Oasys GSA is a comprehensive structural analysis program with versatile design capabilities. 

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Embedded retaining walls

Additional information

Select your licence

Standalone, Network Floating, Network Floating International

I would like to

12 months Subscription (Pay annually), 36 months Subscription (Pay annually), 12 months Maintenance (Existing users only)

Oasys Frew is also available as part of the Oasys geotechnical and suites that bring together complimentary tools in discounted packages

What should I choose?

Standalone licenses are locked to an individual machine, but transferable by the user to another machine manually. Ideal for single users. Restricted to use within the country stated in the End User address submitted by Licensee to Oasys at the time of purchase.

Network Floating licenses can be activated on any number of machines, however you can only concurrently use the number of licences that you have purchased. Ideal for users requiring more flexibility or when working as part of a team. Restricted to use within the country stated in the End User address submitted by Licensee to Oasys at the time of purchase.

Network Floating International licenses can be activated on any number of machines, however you can only concurrently use the number of licences that you have purchased. Ideal for users requiring more flexibility or when working as part of a global team. Eligible for deployment world-wide at the Licensees leisure.

*Prices shown are per year cost

Both Subscription options will allow you the right to use the software for the defined term, with the full maintenance and support service included for the duration. The price will be fixed for the duration of the agreed term after which it will automatically renew for the same duration at the then current price.

12 month pay annually – Single payment for the full term at the commencement of the Subscription period

36 month pay annually – Three annual payments split the cost over the Subscription period. All payments are fixed at the time of purchase and are not subject to variance over time. Lower annual cost in comparison to 12 month option.

Keeping your software licences maintained gives you full access to technical support (telephone, email and web based) and ensures that your software is kept up-to-date with free downloadable updates. Maintenance is only available to existing licences and lasts 12 months. It is highly recommended that you keep your software licences maintained. Maintenance duration will be calculated from the date of expiry of the previous maintenance/initial warranty. If you are purchasing maintenance for licences that have been unmaintained for longer than 12 months please contact us in order to renew.

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