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New steelwork specification

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The 5th edition of the National Structural Steelwork Specification for Building (NSSS) is now available.

Published on 1 January, the revision was prompted by the development and eventual introduction of a forthcoming European standard for the fabrication and erection of structural steelwork. Known as BS EN 1090-2, this standard is widely expected to be introduced in 2008.

Dr David Moore, BCSA Director of Engineering said: “At the start it was decided not to completely adopt the philosophy of the standard, but to create a kind of halfway house between the 4th edition of the NSSS and the new European standard.”

Consequently, the updated specification contains a number of changes that are relevant to specifiers and steelwork contractors.

The reference standards for steel sections, structural bolts and welding have been updated, erection tolerances for foundation supports have been aligned with the National Structural Concrete Specification and the preferred generic treatment specification has been moved from the commentary in to the NSSS.

The welding quality system standard BS EN ISO 3834-3 is now part of the NSSS and steelwork contractors are required to operate their quality systems in line with these standards.

A new section has also been added giving guidance on post-galvanised inspection to liquid metal assisted cracking. This is based on a joint BCSA and Galvanizers Association publication.

The book is available for £25 in the UK, £28 inside the EU, and £31 in the rest of the world. The price includes postage and packing.

The 2007 BCSA diaries were printed with a preliminary draft copy of the 5th edition of the National Structural Steelwork Specification for Building Construction. They incorrectly acknowledged Chris Murgatroyd of Arup as providing further advice. Chris Murgatroyd had no formal contact with the NSSS Steering Committee and his name should not have appeared. The member of the Steering Committee from Arup is Mike Banfi.

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