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AD 466: Probability factors applied to characteristic wind and snow loads for non-standard return periods

In order to retain the accurate formatting of the equations in this AD Note, this article is available as a pdf download only. Click here to download and view …

AD 465: Amendment to clauses on negative tolerances on cambers in the National Structural Steelwork Specification

Engineers generally specify cambers on steel beams to reduce deflection under self-weight. However, when specifying cambers, they should carefully consider the …

AD 463: Corrections to BS 5950-5:1998

Although this Code of practice was withdrawn in 2010, many designers of cold formed thin gauge sections still use it to verify members. During the course of …

AD 461: Anchorage of bars in the troughs of composite slabs

IntroductionTraditional practice in the UK uses continuity over the supports, combined with a small contribution from the decking in the span, to provide …

AD 460: Amendment A2 to EN 1993-1-4

In February 2021, the second amendment to the 2006 version of the stainless steel Eurocode was published, EN 1993-1-4:2006+A2:2020. The amendment consists of …

AD 428A: Lateral and torsional vibration of half-through truss footbridges

Revision NoteThis AD note was first issued to provide interim guidance on the design of half-through footbridges. It has now been revised following publication …

AD 458: panel shear resistance

This AD relates to a bolted moment-resisting connection and the determination of the shear force in the column web panel, and in particular the selection of a …

AD 455: Design resistances for bespoke components in P358 (Green Book)

A reader has questioned the design resistances tabulated for bespoke components in P358 – the Green Book for nominally pinned joints to Eurocode 3. The …

AD 453: Accumulated deviations in erected steelwork

Questions about tolerances continue to arrive at SCI’s Advisory Desk – often concerning the potential to sum all the possible deviations to reach a …

AD450: Resistance of composite slabs to concentrated loads

EN 1994-1-1 clause 9.4.3 is entitled effective width of composite slabs under concentrated point and line loads. It has been the cause of much confusion, as …

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