Ciria C577 -

With the rise of BIM and parametric design, CIRIA’s methodology is increasingly being automated. Some engineering firms now script notional removal checks into their analysis software. However, the —why a building is robust—still comes from the principles in C577.

From this tragedy came modern robustness requirements. And in the UK, one document stands above the rest for practical guidance: .

❌ “Robustness means designing for a bomb blast.” ✅ No—it means preventing disproportionate collapse, which is usually achieved with simple tying. ciria c577

CIRIA C577: The Essential Guide to Structural Robustness for Builders and Engineers

Ronan Point was a wake-up call. CIRIA C577 is the answer. Whether you’re designing a car park, a hospital, or a mixed-use tower, this guide gives you the practical steps to prevent the unthinkable. With the rise of BIM and parametric design,

If you design buildings, manage risk, or construct multi-storey structures, understanding CIRIA C577 isn’t optional—it’s critical.

❌ “My software does all this automatically.” ✅ No software can interpret tie forces and notional removal logic—engineering judgement is required. From this tragedy came modern robustness requirements

In 1968, the partial collapse of Ronan Point tower block in London changed structural engineering forever. A minor gas explosion led to a disproportionate collapse—a small failure triggered a chain reaction far larger than its original cause.