Advisory Desk
AD 407: Section Classification
SCI have been advised that some checking authorities have questioned the approach to calculating α and ψ, which are found in Table 5.2 of BS EN 1993-1-1:2005 …
AD 406: Transient response factors in vibration analysis of staircases
SCI recommends that for most orthodox designs the transient response of a staircase should not be considered in design, as first implied by AD330 [1]. The …
AD 405: Vibration assessment of transient response factors
This advisory desk note clarifies advice given in SCI P354: Design of floors for vibration: a new approach, regarding the calculation of the transient response …
AD 401a: Appropriate anchorage of parallel decking (Revised)
Where profiled steel decking is parallel to the supporting beam, BS EN 1994-1-1 (incorporating corrigenda April 2009: 2004) allows the shear resistance of a …
AD 404: Columns in simple construction
SCI has received reports that some designers are disregarding the rules for the design of columns in braced frames (simple construction). In some cases the …
AD 403: Steel strengths for fabricated haunches
This AD is a simple reminder that the steel strength selected for haunches must match that assumed in the design calculations. As S355 is now the common steel …
AD 402: Design of end plate joints made with preloaded bolts subject to coincident shear and tension.
Advisory Desk note AD373 gave a summary of the checks required on connections subject to combined shear and tension. This AD note discusses the behaviour of …
AD 401: Appropriate anchorage of parallel decking
Where profiled steel decking is parallel to the supporting beam, BS EN 1994-1-1:2004 (incorporating corrigenda April 2009) allows the shear resistance of a …
AD 400: The degree of shear connection in composite beams and SCI P405
The stud resistances presented in both BS 5950-3.1 (as amended in 2010) and BS EN 1994-1-1 are lower than those given in the previous British Standard. This …
AD 399: Design of partial penetration butt welds in accordance with BS EN 1993-1-8
Partial penetration butt welds are covered by Clause 4.7.2, which directs the designer to ‘use the method for a deep penetration fillet weld” given in …
