Appendix A - Performance Standards The appendix states the main external performance standards required by PDO. This list is not exhaustive. A1 Scaffolding Item Standard/Guidance Title Comment General BS EN 12811 Part 1: Scaffolds Technical specification to – Scaffolding 2003 Performance all access scaffolding requirements and structures should be general design. designed. Access and NASC TG20:08 Technical Replaced BS5973 and Special Guidance on the TG20:05 as the Scaffolding with use of BS EN recognised standard for conventional 12811-1 A guide to scaffolding with tubes and and fittings. good practice for fittings in the UK January scaffolding with 2011. Supplement 1 tubes and fittings introduced to – Volumes 1 and 2. accommodate BS EN 1991 Plus Supplement 1. Wind Code (Eurocode 1). Note: currently under review, update expected 2013. Wind BS EN Eurocode 1. The main wind code to be Actions on used for the design of structures. General scaffolding and other actions. Wind structures. Note reduction actions factor of 0.7 for temporary structures erected >2 years is permitted as per BS5975, BS EN 12812 and BS 12811. Scaffold Tubes BS 1139 Part 1.1: Scaffolding Withdrawn July 01 and – 1990 Specification for replaced by BS EN 39: steel tubes 2001 accepted for used tubes, purchased prior to the withdrawal of this standard. BS EN 39: 2001 Loose steel tubes Galvanised Type 4 for tube and tube only in accordance coupler scaffolds. with TG20. Other materials (aluminium) or types (type 3) must have specific engineer’s calculations to support their use. BS 1139 Part 1.2: Metal Scaffolding Note that some facilities – 1990 Specification for prohibit the use of aluminium tubes aluminium access equipment on site.
Appendix A - Performance Standards The appendix states the main external performance standards required by PDO. This list is not exhaustive. A1 Scaffolding Item Standard/Guidance Title Comment General Scaffolding BS EN 12811 Part 1: 2003 Scaffolds – Performance requirements and general design. Technical specification to all access scaffolding structures should be designed. Access and Special Scaffolding with conventional and fittings. NASC TG20:08 Technical Guidance on the use of BS EN 12811-1 A guide to good practice for scaffolding with tubes and fittings – Volumes 1 and 2. Plus Supplement 1. Replaced BS5973 and TG20:05 as the recognised standard for scaffolding with tubes and fittings in the UK January 2011. Supplement 1 introduced to accommodate BS EN 1991 Wind Code (Eurocode 1). Note: currently under review, update expected 2013. Wind BS EN Eurocode 1. Actions on structures. General actions. Wind actions The main wind code to be used for the design of scaffolding and other structures. Note reduction factor of 0.7 for temporary structures erected >2 years is permitted as per BS5975, BS EN 12812 and BS 12811. Scaffold Tubes BS 1139 Part 1.1: 1990 Scaffolding – Specification for steel tubes Withdrawn July 01 and replaced by BS EN 39: 2001 accepted for used tubes, purchased prior to the withdrawal of this standard. BS EN 39: 2001 Loose steel tubes for tube and coupler scaffolds. Galvanised Type 4 tube only in accordance with TG20. Other materials (aluminium) or types (type 3) must have specific engineer’s calculations to support their use. BS 1139 Part 1.2: 1990 Metal Scaffolding – Specification for aluminium tubes Note that some facilities prohibit the use of aluminium access equipment on site.
2013-09-15%20Final%20SP1257.docx