Technical
AD 530: Countersunk head bolts
Countersunk head bolts may be manufactured with a slot (for a screwdriver), see Fig. 1, or a hexagonal socket (for an allen key driver), see Fig. 2. This AD is …
New and revised codes and standards: from BSI updates May 2024
BRITISH STANDARDS WITHDRAWN BS EN 813:2008Personal fall protection equipment. Sit harnesses. BS EN 12841:2006Personal fall protection equipment. Rope access …
Design of steel beams with large web openings
BS EN 1993-1-13: Beams with large web openings has been published by BSI. It deals with the design of steel beams with circular, hexagonal, rectangular, …
AD 528: Lateral restraint forces for beams
SCI’s Advisory Desk has received queries from designers as to what restraint forces should be used to restrain the compression flange of a beam. This AD Note …
New and revised codes and standards: From BSI Updates April 2024
BRITISH STANDARDS WITHDRAWN PD CEN/TR 15941:2010Sustainability of construction works. Environmental product declarations. Methodology for selection and use of …
Critical temperatures for fire design: Part 2 – Columns
Part 1 of this article discussed the calculation of critical temperatures for beams, presented by ASFP and in the UK NA to BS EN 1993-1-2. In this second part, …
AD 527: Hybrid connections with bolts and welds
SCI’s Advisory service occasionally receives questions about connections where load is to be shared between bolts and welds. This AD explains the code …
New and revised codes and standards from BSI updates March 2024
BRITISH STANDARDS UNDER REVIEW BS EN 1011-3:2018Welding. Recommendations for welding of metallic materials. Arc welding of stainless steels. BS EN …
Fire protection of steelwork
In this first of two technical articles, David Brown of the Steel Construction Institute gives some general background on fire protection and demonstrates how …
New and revised codes and standards: from BSI Updates February 2024
BS EN PUBLICATIONS BS EN 10088-1:2023Stainless steels. List of stainless steelssupersedes BS EN 10088-1:2014 BS EN 10088-3:2023Stainless steels. Technical …






