Wind loads on scaffolds shall conform to the national standard BS 6399.
• Reappraisal of effective lengths for the purpose of estimating the safe loads on standards.
• Structural design according to limit state theory.
It means that some of the requirements in BS EN 12811-1 were reconsidered in preference to good scaffolding practice.
Fundamentally, the principles of BS 5973 remain unchanged and there are very few changes in the day to day work of a scaffolder.
To ensure TG20 is easily accessible it is divided into two volumes: