About XSection

Why XSection was created

Throughout my career I have regularly relied on reinforced concrete section analysis software for the design and assessment of bridges and other civil infrastructure.

While existing software provides valuable engineering capability, I often found the workflow unnecessarily cumbersome. Many applications remain desktop-based, require software installation, have user interfaces that have changed little over the past decade, or make relatively simple engineering tasks more time consuming than they need to be.

I wanted a tool that was quick to use, available from any browser, and designed around the way engineers actually work.

XSection was created to fill that need.

It is the software I wanted to use myself—a platform that combines robust numerical analysis with a clean, modern workflow, allowing engineers to spend less time operating software and more time making engineering decisions.

Designed for practising engineers

XSection has been designed around a number of simple principles:

• Browser-based access with no software installation.
• Support for standard and arbitrary reinforced concrete cross-sections.
• Fast, intuitive modelling with clear visual results.
• Clear presentation of analysis results.
• Modern engineering workflows that minimise unnecessary user input.
• Continuous updates delivered automatically through the browser.

The aim is not to reinvent reinforced concrete theory, but to provide a better engineering experience when applying it.

Simplicity by design

One of the guiding principles behind XSection is that engineering software should be powerful without being unnecessarily complicated.

In practice, structural engineers tend to perform the same core reinforced concrete cross-section analyses repeatedly throughout their careers. While highly specialised functionality has its place, adding every possible option often increases complexity, extends learning time and slows down everyday workflows.

XSection has therefore been designed to provide the analytical capability required for the vast majority of day-to-day reinforced concrete cross-section analyses while maintaining a simple, intuitive user experience.

New features will continue to be added where they provide genuine value, but usability will remain a fundamental design principle.

Scope and design philosophy

XSection is a general-purpose strain compatibility cross-section analysis tool for reinforced and prestressed concrete.

Its purpose is to determine the behaviour and strength of reinforced concrete cross-sections using recognised material models together with the relevant code-based capacity reduction factors for the selected design standard.

The software focuses on the mechanics of cross-section behaviour rather than complete member design.

This distinction is intentional.

Comprehensive structural design standards include many provisions that extend beyond cross-section analysis, including requirements relating to slenderness, second-order effects, shear, torsion, confinement, reinforcement detailing, anchorage, serviceability and other member-specific design checks.

These requirements depend on the behaviour of the complete structural member and are often developed specifically for standard member types such as beams, columns and walls.

Rather than attempting to combine general cross-section analysis with every member-specific code provision, XSection focuses on providing a robust and flexible strain compatibility engine that can be applied to a wide range of reinforced concrete geometries.

This approach allows engineers to analyse conventional reinforced concrete sections as well as complex and user-defined geometries within a consistent analytical framework.

It also provides a clear foundation for future development. Member-specific design applications—such as reinforced concrete beam, column or wall design tools—can be developed using the same underlying strain compatibility engine while incorporating the additional design checks and code provisions applicable to those particular member types.

Built on established engineering principles

XSection has been developed using established strain compatibility theory and recognised reinforced concrete analysis methods.

Particular emphasis has been placed on numerical robustness, consistency and usability, ensuring the software remains suitable for both everyday design work and more complex engineering applications.

As with all engineering software, XSection is intended to support professional engineering judgement rather than replace it. Engineers remain responsible for verifying that analyses are appropriate for their project and that all applicable design code requirements have been satisfied.

Looking ahead

XSection is an actively developed engineering platform.

Future development will continue to expand analysis capabilities, supported design standards and specialised design applications built on the same strain compatibility engine.