Smarter structural engineering with Grasshopper and Oasys

Author: Eiki Homma, Senior Product Manager at Oasys

Date published

19 August 2025

The Institution of Structural Engineers The Institution of Structural Engineers

Smarter structural engineering with Grasshopper and Oasys

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Author

Eiki Homma, Senior Product Manager at Oasys

Date published

19 August 2025

Author

Eiki Homma, Senior Product Manager at Oasys

This blog demonstrates how Oasys General Structural Analysis (GSA) and Oasys Advanced Section Analysis (AdSec) work seamlessly with Grasshopper to unlock speed, efficiency and creativity, helping structural engineers make better design decisions.

Parametric design is no longer limited to architects or academia. It’s becoming an essential of day-to-day engineering. Tools like Grasshopper allow structural engineers to create powerful, reusable and adaptable scripts that help automate repetitive tasks, streamline model setup, and unlock data insight early.

But the real shift happens when parametric design is combined with structural analysis: and that’s where Oasys’ Grasshopper plugins come in. With GSA for Grasshopper and AdSec for Grasshopper, engineers can build, analyse, and post-process structural models within a single environment.

If you’re already working parametrically, these tools can take your workflows further. If you’re not yet using parametric methods, now is the time to take another look.

Parametric design saves you time
Engineers often repeat post-processing steps like formatting output tables, extracting key metrics, or running similar design checks. Parametric workflows let you capture that logic once and reuse it wherever it’s needed: with the added flexibility of tailoring calculations to your specific project requirements.

Grasshopper offers a visual way to build these workflows. It’s essentially a graphical programming language supported by a wide community and wealth of online resources.

Within this environment, you can build models that extract outputs like forces, utilisation, tonnage and embodied carbon, in a structured, and visual format. You can embed your own standards, automate checks, and generate visualisations to communicate results effectively with teams and clients.

GSA and AdSec: Engineering intelligence inside Grasshopper

The GSA-Grasshopper plugin brings validated structural analysis into the parametric space. Build geometry, assign properties, run analyses, and extract results: all within one script. From building frames to trussed bridges, this integration allows quick iteration with real-time feedback and less manual processing.

Similarly, the AdSec-Grasshopper plugin supports non-linear section analysis, letting you assess capacities and code compliance on the fly. You can model custom shapes, embed logic to filter results, or visualise failure modes and interaction curves dynamically.

Together, these integrated tools help engineers move beyond static models to responsive design environments that update in real time as parameters change throughout design development.

Come for the efficiency, stay for the exploration

A powerful benefit of parametric design is rapid optioneering. Once you have set up your parametric workflow with Oasys plugins embedded in your Grasshopper scripts, it becomes straightforward to compare different schemes, assess structural, cost and carbon performance.

You can hook up your scripts to optimisation engines like Galapagos as seen in the image below or simply use sliders and toggles to test variations: ideal for bids, early-stage feasibility or detailed material optimisation.

Parametric tools don’t just make things faster. They help engineers make better-informed decisions.

It’s not just for specialists it's for every engineer

It’s easy to assume parametric design is only for coding or digital experts. However, it’s more accessible than ever and becoming increasingly familiar to the next generation of engineers. Many students now encounter Grasshopper while at university.

Think of parametric design as a dynamic, powerful and visual version of a spreadsheet, with familiar logic, expressed differently.

There’s no need to start from scratch. You can adapt example files from Oasys or your own company standards and gradually develop your own libraries. With growing expertise across the industry and ample support and training available, it’s easier than ever to start and build confidence quickly.

Try it yourself

Parametric design isn’t just different, it’s smarter. It gives structural engineers more control over time, outputs, and design intent.

Whether you’re aiming to optimise embodied carbon, or simply explore ideas faster, Grasshopper plus Oasys' plugins open the door to deeper insight and greater confidence in your design decisions. Move beyond one-off models and start building intelligent, reusable workflows.

This isn’t about replacing engineering judgement, it’s about equipping yourself with tools that amplify it.

Learn more about our structural analysis software or to speak to a member of the team, register your interest below.

Additional information

Format:
Blog
Publisher:
IStructE

Tags

Software Blog Sustainability & Environment Structural analysis Conceptual Design Buildability

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