Advisory Desk
AD 536: In-plane member buckling lengths for portal frames
The verification of members in portal frames leads to a common question about in-plane buckling lengths, especially when designers are using general software. …
AD 535: Horizontal lateral loading on internal load-bearing walls in residential buildings
There are two sources of horizontal lateral loading on internal walls in residential buildings that should be considered in their design. These are loads …
AD 534: Anchorage length of horizontal stiffeners in steel and composite beams with large web openings
In SCI publication P355 Design of composite beams with large web openings, some typographical mistakes have been found in the equations for the anchorage …
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 …
