Advisory Desk
AD 555: Laser screed machines used during the construction of composite slabs
It has come to SCI’s attention that some contractors are using large laser levelling machines when pouring composite slabs (as shown in Figure 1), and it is …
AD 554: Internal pressure and large openings
SCI’s advisory desk sometimes gets asked about calculating the internal pressure coefficients in buildings with large openings and whether the situation …
AD 553: Provision of sprinklers and fire compartments in single-storey buildings
The need to provide so-called Constrado (moment-resisting) bases to perimeter columns of single-storey buildings, when the wall is (or could become) …
AD 552: Errata in P362 – Steel building design; concise Eurocodes
Expressions 6.61 and 6.62 of BS EN 1993-1-1 are used when verifying a member subject to combined biaxial bending moments and axial force. SCI publication P362 …
National Highways sector schemes changes
National Highways has recently published a replacement for the 1800 Series. The new specification is called CP 483 Instruction for specifiers for CC 483 – …
AD 550: Stiffness classification forwelded beam to column joints
If a bolted beam to column joint is to be classified as “rigid”, practical recommendations are contained in the Green Book on moment-resisting joints …
AD 549: Steel decking and composite slab span types
Design software, or load-span information, provided by floor decking manufacturers will normally be used to verify the steel decking and composite slab, as its …
AD 548: High shear regions for large web openings as defined in SCI P355
SCI’s advisory desk has been asked about the definition of a ‘high shear’ region in SCI P355 Design of Composite Beams with Large Web Openings. In P355, …
AD 546: Critical temperatures for compression members in the UK NA to BS EN 1993-1-2
The UK NA to BS EN 1993-1-2 contains values for critical temperatures for compression members, presented in Table NA.1 as a matrix of values for combination of …
AD 544: Washers for preloaded bolting assemblies
The SCI Advisory Desk sometimes receives questions about washers for preloaded bolting assemblies. When preloaded bolts are tightened and unhardened washers …
