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Advisory Desk

AD 432: Wind loads on building canopies

AD 432: Wind loads on building canopies

The purpose of this AD note is to direct designers’ attention to PD 6688-1-4 as a source of design loads on building canopies and useful..

July 9, 2019
AD 431: Column web panel strengthening

AD 431: Column web panel strengthening

The purpose of this Advisory Desk note is to draw attention to the contribution that full-depth stiffeners make to the shear resistance of..

June 12, 2019
AD 430: Wind load on unclad frames

AD 430: Wind load on unclad frames

In order to retain the accurate formatting of the equations in this technical paper, this article is available as a pdf download only...

May 7, 2019
AD 429: Slip factors for alkali-zinc silicate paint

AD 429: Slip factors for alkali-zinc silicate paint

This AD note draws attention to the slip factors for alkali-zinc silicate painted faying surfaces considered in AD 383 which have been..

April 4, 2019
AD 428: Draft guidance: lateral and torsional vibration of half-through truss footbridges

AD 428: Draft guidance: lateral and torsional vibration of half-through truss footbridges

Purpose of this guidance This note alerts designers to the potential susceptibility of narrow half-through footbridges to excitation by..

March 7, 2019
AD 427: Typographical error in P419

AD 427: Typographical error in P419

A few eagle-eyed readers have noticed a typographical error in SCI publication P419 Brittle fracture: selection of steel sub-grade to BS EN..

February 7, 2019
AD 426: Bolt head protrusion through nuts and threads in grip lengths

AD 426: Bolt head protrusion through nuts and threads in grip lengths

To ensure that bolt threads are fully engaged in the nut, BS EN 1090-2 clause 8.2.2 specifies that the protrusion must be at least one..

January 2, 2019
AD 425: Full depth stiffeners and lateral torsional buckling

AD 425: Full depth stiffeners and lateral torsional buckling

The SCI Advisory Desk sometimes receives questions about the potential to use full depth stiffeners to restrain lateral torsional buckling,..

January 2, 2019
AD 424: Shear stud length

AD 424: Shear stud length

SCI has been advised that shear studs which are shorter than usual have been placed on the market in the UK, and this AD warns against..

November 7, 2018
AD 423: Reduction in bending resistance due to high shear

AD 423: Reduction in bending resistance due to high shear

When considering the resistance of cross sections under combined bending and high shear, (where the shear is equal to or exceeds half the..

October 11, 2018