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

This note explains how rolled steel I and H-sections are designed to resist torsion.

This note will explain how to determine the movement, or restraint to movement under thermal effects, and how it varies depending on a variety of conditions. It will also highlight areas where potential issues can be overlooked.

This note introduces the analysis and design methods for post-fixed anchors and explains how they can be applied.