Ciria C577 //free\\ -

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

❌ “Robustness means designing for a bomb blast.” ✅ No—it means preventing disproportionate collapse, which is usually achieved with simple tying. 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. If you design buildings, manage risk, or construct

CIRIA C577: The Essential Guide to Structural Robustness for Builders and Engineers Some engineering firms now script notional removal checks

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

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