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Advisory Desk

AD 428: Draft guidance: lateral and torsional vibration of half-through truss footbridges

AD 428: Draft guidance: lateral and torsional vibration of half-through truss footbridges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
AD 422: Punching shear check for fin plates in P358

AD 422: Punching shear check for fin plates in P358

This AD note relates to Check 10 for fin plates in P358 Simple Joints to Eurocode 3 (the Eurocode “Green Book” on simple connections)...

September 13, 2018
AD 421: Design responsibility for welds in fabricated plate girders

AD 421: Design responsibility for welds in fabricated plate girders

In recent months the SCI has received a number of questions about responsibility for the design of the welds between the web and flanges of..

September 13, 2018
AD 420: Minimum values of shear and bending moment in beams with web openings

AD 420: Minimum values of shear and bending moment in beams with web openings

Table 3.1 of SCI publication P355 gives minimum values of co-existent shear and bending moment to be used at beam openings. This AD..

July 12, 2018
AD 419: Composite beams with different positions of web openings

AD 419: Composite beams with different positions of web openings

SCI publication P355 is widely used to design beams with large web openings. It is adopted in the development of software to design hot..

June 14, 2018