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Data Security

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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Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.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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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 optimisation can be carried out for a large variety of section profiles and codes. There is a customisable 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.

You must be logged in to access this product's trial download, please login or register.

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GSA Product Comparison

Analysis Building Bridge Suite
User Interface
Customisable Graphic Views with Flexible Contouring and Labeling

Flexible graphic views to display whatever information you want in whatever format you want. GSA can create contours for any parameter or result in the model and allow you to customize the display based on what you want to see in the model.

Versatile and Transparent Meshing

Draw or import any geometry and GSA will create a suitable analytical mesh. Viewing and manipulation of the meshed geometry is possible before analysis so that you can have complete confidence in your model.

Flexible Tabular and Graphical Inputs

Create and manipulate your model geometry and loads with graphical and tabular inputs.

Grasshopper Plugin

Parametrically create, edit, and optimize your models with GSA's Grasshopper plugins.

Connections to BIM and other Software

GSA offers bidirectional interoperability with many industry-standard software packages including Revit, AutoCAD and .ifc files. Exports also available to IDEAStatiCa, LS DYNA and AdSec.

Application Programming Interface

For advanced users, GSA's API expands the realm of possibilities by allowing the user to create scripts using a wider range of languages to interact with the program. Use your own code or third-party programs to create, edit and optimize your GSA model through either the .NET or COM API.

Analysis Capabilities
Nonlinear Materials

Elastic-Orthotropic and Elastic-Plastic Isotropic materials

Nonlinear Elements

Compression-only struts, tension-only ties, nonlinear springs, and cables

Tapered Elements*

Define entities which vary in size along their lengths

3D Elements

3D solid (brick) elements allowing a wide range of structural properties to be simulated

Linear, P-Delta, and Nonlinear Analyses

Analyse for geometric and material non-linearity over large deflections, including dynamic relaxation and explicit solvers

Dynamic Analysis & Response

Modal, Ritz, and Explicit analyses, including P-Delta effects, with Response Spectrum, Harmonic, Time History, and Periodic analyses

Buckling Analysis

Modal buckling of 1D & 2D elements; Nonlinear buckling of 1D elements

Fabric Analysis

Analysis of fabric nonlinear materials

Form-finding

Geometry generation for tension and compression only structures

Imperfection Analysis*

Impose initial imperfections on analysis without modifying the base geometry

Staged Analysis

Add, remove, and change elements and constraints between various analysis stages

Soil-Structure Interaction Analysis

Directly model your structure and nonlinear soil profile in one program using GSA's Raft Analysis. Foundation settlement, slab stresses, bearing pressure along with associated demands in the superstructure can all be determined from a single analysis, bypassing the need to have a separate superstructure, foundation, and geotechnical model.

Footfall Vibration Analysis

Using modal superposition, a rigorous and accurate finite element method, GSA is able to evaluate a structure's sensitivity and response to accelerations caused by pedestrian loading. 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

Bridge Loading

Lane and vehicle load optimisation for highway and railway bridges. - Bridge loading and optimisation: 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 - 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

Wave Loading

Generate wave and current loads on submerged structures

Design Capabilities
Reinforced Concrete Design

Slab bending and axial reinforcement can be calculated for any geometric shape (even curved slabs) with reinforcement oriented at any angle in the plane of the slab. International design codes included in GSA: - Australia: AS 3600: 2009 - Canada: CSA A23.3-14, S6-14 - Eurocode: EN 1992-1-1:2004 Eurocode 2 (including German, UK, Dutch, French, Italian, Danish, Bulgarian, Cyprus, Finnish, Irish, Polish, Spanish and Singapore annexes) - Hong Kong: HK Structures Design Manual 2002, Code of Practice 2013 - India: IRS Concrete Bridge Code 1997, IS 456:2000 - UK: BS 5400, BS 8110-1:1997 (Rev 2005) - US: ACI 318-11, ACI 318-14, AASHTO LRFD-8 17

Steel Design

Steel design checks, including automatic unbraced length calculations, can be carried out for a large variety of section profiles and international design codes. Section pools also allow the steel designer to optimize the design of a set of members. International Design Codes included in GSA: - Australia: AS 4100:1998, AS 4100:2020 - Canada: CSA S16-09, CSA S16-14 - Eurocode: EN 1993-1-1:2005 Eurocode 3 (including French, Dutch, German, Irish, UK, Singapore, and UK fire annexes) - Hong Kong: HKSUOS:05 & 11 (incl 2021 Edition) - India: ISS 800:1984 & 2007 - UK: BS 5950-1:2000 - US: AISC LRFD 99, AISC 360-05 ASD & LRFD, AISC-360-10 ASD & LRFD - South African: SANS 10162-1:2011

Modules in the Suite

GSA Suite

Structural engineers designing buildings, bridges and tensile structures need comprehensive software to get robust results. Tackle any structural engineering challenge with this complete structure design and analysis software package. GSA Suite gathers the benefits of all the GSA variants into one single offering.

Find out more »

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

Arup Structural Engineer Juan Maier took advantage of the COM Interface offered in GSA when working on the multi-billion dollar Marina Bay Sands Integrated Resort in Singapore.

View Case Study »

Please fill out the following form to make an enquiry for this software.

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Complete the form available by clicking on the Request a Trial button and add any additional information in the comments section that we may find helpful in deciding whether to authorise a trial. Upon submission of the form we endeavor to get back to you as soon as possible.

  • Any mandatory form questions that are not completed accurately or fully will not be issued with a trial licence.
  • If you have already been issued with a trial licence for this product in the past 12 months please contact us before submitting a request.
  • Trial request approval is entirely at our discretion; Oasys reserves the right to decline a request at any time, and for any reason.

If you’re interested in our software, have some questions or want to know the pricing, we’re here to help. Contact us and one of our advisors will help you find the answers you need.

Simply fill out the contact form with your question and we’ll get back to you as soon as we can.

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. GSA 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].

This trial program includes all modules except Fabric. To activate these options, select them on the Advanced Features on the Preferences dialog. If you wish to trial form-finding and fabric analysis, please contact us at [email protected] for a licence.

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

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

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Description

Structural design and analysis software

Additional information

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

"The updated auto-meshing functionality in GSA is incredible. Nice work to you and the rest of the Oasys team!"
Quinn Peck, Senior Structural Engineer

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