Author: The Institution of Structural Engineers
2 August 2012
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The Institution of Structural Engineers
This note is split into two sections; the ﬁrst contains information a designer of steel elements provides, while the second contains information a fabricator creates in order to manufacture and construct the steel structure. While one feeds into the other, the level of detail each set of information provides is very different, due primarily to the end result. One is informing the manufacture of the steelwork, while the other focuses on its installation.
Imposed loads (quasi-permanent variable actions) are defined as loads that are applied to the structure. Updated October 2016.
There are several variations and conditions the designer must be aware of when determining snow loads onto structures. Based on Eurocode 1: Actions on Structures Part 1-3; General Actions – Snow Loads this note draws on the UK National Annex as it makes reference to projected snow falls that are typical in the UK. Updated October 2016.