Technical
AD 519: Equivalent horizontal forces and combinations of actions
Recent questions to SCI’s Advisory Desk have shown that some designers are unclear whether equivalent horizontal forces (EHFs) should be applied to a …
New and revised codes and standards – from BSI Updates November and December 2023New and revised codes and standards –
BS EN PUBLICATIONS BS EN 1990:2023Eurocode. Basis of structural and geotechnical designsupersedes BS EN 1990:2002+A1:2005 and BS EN 1997-1:2004+A1:2013, which …
Structural modelling for analysis: Section 7 in BS EN 1993-1-1:2022
The updated version of EN 1993-1-1, BS EN 1993-1-1:2022, has been finalized and is being considered by the team draughting the UK National Annex. Adoption of …
AD 517: Heavy concentrated loads on composite slabs
This note revisits the subject of concentrated loads on composite slabs. Earlier notes AD450 and AD477 considered how to design the slab, and particularly the …
New and revised codes and standards: from BSI Updates October 2023
BS EN PUBLICATIONS BS EN 1990:2023Eurocode. Basis of structural and geotechnical designsupersedes BS EN 1990:2002+A1:2005 and BS EN 1997-1:2004+A1:2013 BS EN …
Better can sometimes be worse – the dangers of over-strength
As engineers we are always concerned with strength – do we have enough resistance to cope with ultimate (ULS) levels of load? We then consider stiffness – …
New and revised codes and standards From BSI Updates September 2023
BS EN PUBLICATIONS BS EN 12152:2023Curtain walling. Air permeability. Performance requirements and classificationsupersedes BS EN 12152:2002 BS EN …
AD 515: Welding of structural nuts and bolts
SCI’s Advisory Desk has recently received queries from designers asking if it permissible to weld structural nuts and bolts – typically for situations …
Benefits of Steel Decking
Although most designers are familiar with composite construction, it is worth a reminder of the benefits that can be achieved and how design choices can have …
New and revised codes and standards, from BSI Updates July and August 2023
BS EN PUBLICATIONS BS EN ISO 13920:2023Welding. General tolerances for welded constructions. Dimensions for lengths and angles, shape and positionsupersedes BS …
