Technical
AD 436: Section classification of a flat plate
SCI is sometimes asked how to determine the section class of a flat plate as BS EN 1993-1-1 does not include this section in table 5.2. The purpose of this …
New and revised codes & standards from BSI Updates November and December 2019
BS EN PUBLICATIONS BS EN ISO 3269:2019 Fasteners. Acceptance inspection Supersedes BS EN ISO 3269:2001 BS EN ISO 6947:2019 Welding and allied processes. …
Bolt slip in connections
The effect of bolt slip in truss connections is an issue that is raised with SCI from time to time in various contexts. Richard Henderson discusses some of the …
New and revised codes & standards: From BSI Updates October 2019
BS EN PUBLICATIONS BS EN 508-2:2019 Roofing and cladding products from metal sheet. Specification for self-supporting products of steel, aluminium or stainless …
AD 435: Beams supporting precast planks: checks in the temporary condition
The purpose of this note is to remind designers of their responsibility for basing their design on a safe method of erection. This is particularly necessary if …
Connection design in trusses
A general article about steel trusses which touched on choice of members and their orientation but did not go into detail about designing connections was …
New and revised codes & standards from BSI Updates September 2019
BS EN PUBLICATIONS BS EN ISO 945-1:2019 Microstructure of cast irons. Graphite classification by visual analysis Supersedes BS EN ISO 945-1:2018 BS EN ISO …
AD 434: Validity rules for hollow section joints
This AD note concerns a significant typographical error in Table 7.8 of BS EN 1993-1-8. The table presents validity limits for welded joints between hollow …
Cross-braced lateral load-resisting systems
Cross bracing is a traditional means of providing lateral stability to structures. Richard Henderson of the SCI discusses some of the features of this …
AD 433: Dynamic modulus of concrete for floor vibration analysis
The purpose of this AD note is to provide advice on the choice of elastic modulus of concrete when undertaking the vibration analysis of a composite floor. In …
