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The development of design rules for restrained columns

Following on from the previous two articles, David Brown of the SCI looks back at the development of design rules for restrained columns. Looking at the work …

Building Consequence Classes and the link to Execution Classes

Richard Henderson of the SCI discusses the evolution of Building Consequence Classes and the link between them and Execution Classes of structures. The …

AD 297: Disproportionate collapse regulations

This AD is to advise engineers how they might account for the differences between the disproportionate collapse regulations in England and Wales, Scotland and …

Collapse rules progress to a higher level

Design to resist disproportionate collapse became more complex last month as a new Building Regulation came into effect. Regulation A3 and Approved Document A, …

AD 278: Changes to the Building Regulations and Approved Document A3 Disproportionate Collapse – Interim Guidance on the use of BS 5950-1: 2000

This AD provides interim guidance in dealing with the changes to Section A3 of Approved Document A – Structure (2004 Edition) in connection with the …