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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
The design of hybrid fabricated girders – part 2

The design of hybrid fabricated girders – part 2

In Part Two of the article, David Brown of the SCI discusses the lateral torsional buckling resistance and shear resistance of hybrid..

July 13, 2017
High speed rail college set to arrive

High speed rail college set to arrive

In anticipation of the construction of high-speed rail infrastructure, a national college to train specialist engineers is being built...

January 4, 2017
Lateral torsional buckling – additional Eurocode provisions

Lateral torsional buckling – additional Eurocode provisions

David Brown of the SCI discusses the Eurocode rules when the effect of LTB may be ignored, and the simplified rules for buildings. In order..

September 8, 2016
Bridging the A1 gap

Bridging the A1 gap

Eight steel composite bridges are being installed as part of the A1 upgrade in North Yorkshire. As the only section of non-motorway on the..

July 16, 2016
LTB in the Eurocodes – Back to the Future

LTB in the Eurocodes – Back to the Future

In Part 1, David Brown of the SCI looked at comparisons between lateral torsional buckling in BS 449 and BS 5950. In Part 2, the comparison..

March 11, 2016
A brief history of LTB

A brief history of LTB

David Brown of the SCI reviews the (relatively) recent history of lateral torsional buckling of beams. Part 1 includes a reminder of the..

February 11, 2016
AD 391:	Lateral Torsional Buckling of rectangular plates in accordance with BS EN 1993-1-1

AD 391: Lateral Torsional Buckling of rectangular plates in accordance with BS EN 1993-1-1

BS EN 1993-1-1 does not explicitly cover LTB of rectangular plates. This AD note provides guidance for calculating the design buckling..

October 8, 2015
Design of steel portal frame buildings to Eurocode 3

Design of steel portal frame buildings to Eurocode 3

Dr Richard Henderson examines SCI’s publication P399 on portal frame design. In order to retain the accurate formatting of the equations..

July 10, 2015
Simplified assessment methods for LTB

Simplified assessment methods for LTB

David Brown of the SCI considers the simplified assessment method for lateral-torsional buckling given in EC3, and finds a useful..

June 1, 2012