Technical
AD 428: Draft guidance: lateral and torsional vibration of half-through truss footbridges
Purpose of this guidance This note alerts designers to the potential susceptibility of narrow half-through footbridges to excitation by pedestrians in a …
New and revised codes & standards; from BSI updates February 2018
BS EN PUBLICATIONS BS EN 1011-6:2018 Welding. Recommendation for welding of metallic materials. Laser beam welding Supersedes BS EN 1011-6:2005 BS EN …
Properties of quality class steel
David Brown of the SCI discusses the specification of steel with improved through thickness properties. It should be noted that steel with through thickness …
AD 427: Typographical error in P419
A few eagle-eyed readers have noticed a typographical error in SCI publication P419 Brittle fracture: selection of steel sub-grade to BS EN 1993-1-10, within …
New and revised codes & standards, Dec 2018 & Jan 2019
BS EN PUBLICATIONS BS EN 1992-4:2018 Eurocode 2. Design of concrete structures. Design of fastenings for use in concrete Supersedes DD CEN/TS 1992-4-1:2009, DD …
Illustration of fatigue design of a crane runway beam
As indicated in the technical article in the September 2018 issue of New Steel Construction Richard Henderson of the SCI discusses the fatigue design of crane …
New and revised codes & standards, from BSI Updates November 2018
BS EN PUBLICATIONS BS EN 560:2018 Gas welding equipment. Hose connections for equipment for welding, cutting and allied processes Supersedes BS EN 560:2005 BS …
AD 426: Bolt head protrusion through nuts and threads in grip lengths
To ensure that bolt threads are fully engaged in the nut, BS EN 1090-2 clause 8.2.2 specifies that the protrusion must be at least one thread pitch. This is …
AD 425: Full depth stiffeners and lateral torsional buckling
The SCI Advisory Desk sometimes receives questions about the potential to use full depth stiffeners to restrain lateral torsional buckling, suggesting that the …
Composite beam design at elevated temperature: comparisons between different temperature distributions in the concrete flange
Several resources give guidance on the temperature profile through composite slabs; BS 5950-8, EN 1994-1-2 and NCCI PN005C-GB. Ricardo Pimentel of the SCI …
