Technical
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 …
New and revised codes & standards from BSI updates July and August 2019
NEW WORK STARTED EN 1993-1-2 Eurocode 3. Design of steel structures. General rules. Structural fire design Will supersede BS EN 1993-1-2:2005 EN 1993-1-3 …
The design of tee sections in bending
David Brown of the SCI looks at the lateral torsional buckling resistance of tee sections, considering the rules in BS 5950 and BS EN 1993-1-1 In order to …
New and revised codes & standards from BSI Updates June 2019
BS EN PUBLICATIONS BS EN ISO 2553:2019 Welding and allied processes. Symbolic representation on drawings. Welded joints Supersedes BS EN ISO 2553:2013 BS EN …
AD 432: Wind loads on building canopies
The purpose of this AD note is to direct designers’ attention to PD 6688-1-4 as a source of design loads on building canopies and useful data and guidance …
