Author: The Institution of Structural Engineers
12 January 2013
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The Institution of Structural Engineers
The subject of this guide is the design of non-composite steel beams to BS EN 1993-1-1 – Eurocode 3: Design of Steel Structures – Part 1-1: General Rules for Buildings. It covers both restrained and unrestrained rolled steel ‘I’ and ‘H’ beam sections. This is the first in the series of Level 2 guides and as such,the reader is assumed to be familiar with the concepts explained in relevant Level 1 Technical Guidance Notes. (This article was updated in October 2016 to reflect errata issued since its original publication.)
This Technical Guidance Note concerns the derivation of wind load onto structures. It is based on Eurocode 1: Actions on Structures Part 1-4; General Actions – Wind Actions. With this being focused on a load that is sensitive to the environment, the UK Annex to the Eurocode plays a significant part as it makes reference to wind speeds that are unique to the British Isles. There are a large amount of variations and conditions the designer must be aware of when determining wind loads on structures. It is for this reason that the reader is referred to the code text more often than in other notes in this series.
This Technical Guidance Note describes the causes of cracking in concrete.