Technical Guidance Note (Level 3, No. 1): Designing for torsion in open-section steel elements

The purpose of this Technical Guidance Note is to assist structural engineers familiar with the theoretical behaviour of steel structural elements subject to torsion to avoid or design for it when necessary.

The purpose of this Technical Guidance Note is to assist structural engineers familiar with the theoretical behaviour of steel structural elements subject to torsion to avoid or design for it when necessary.

Updated guidance on designing for structural robustness and the prevention of disproportionate collapse through the consideration of risk.