Advisory Desk
AD 532: Integral bracing and diaphragm action of light steel framed walls
The purpose of this advisory desk note is to highlight that guidance provided in SCI P437 supersedes guidance previously provided in SCI ED002 in relation to …
AD 531: Heavy power floats on composite slabs during construction
It has come to SCI’s attention that composite slabs are being loaded with large power floats weighing up to 1 tonne, that have not been accounted for in the …
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 …
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 …
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 …
AD 524: Composite slabs and minimum reinforcement limits
Reinforcement in composite slabs is not only required to provide resistance to the slab but also to prevent cracking of concrete. Codified limits to the …
AD 520: Amendment to Table 8 in the MPS-Bolts (issue 14)
The BCSA has reviewed the requirements for impact test for machined test pieces in Table 8 of the Model specification for the purchase of structural bolting …
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 …
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 …
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 …
