Author: S. Fray (Institution of Structural Engineers)
1 January 2012
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S. Fray (Institution of Structural Engineers)
This Technical Guidance Note acts as an introduction to the core design concepts that are found within the current codes of practice used within the UK. It also explains the relationship between each of the other guidance notes and how the reader is to navigate and use them. All of the subsequent notes make reference, be they direct or implied to this core guide; it is therefore imperative that anyone seeking to use these guides must be fully conversant with what is contained within this note.
This Technical Guidance Note concerns the derivation of dead loads. This is a core guidance note and as such, subsequent notes will make reference to this one. It is therefore important to understand the contents of this note before attempting to digest any of the others. Dead load is defined as the weight of static materials contained with a structure. This includes the self weight of the structure as well as the materials it is supporting that are fixed to it. Within Eurocode 1 it is defined as a 'Permanent Action'.
The twisting of elements within structures due to eccentric loading is something that is best avoided as far as is possible. Such actions develop torsion forces in elements against which they were not designed to withstand. This Technical Guidance Note concerns this buildability and detailing issue that structural engineers must become familiar with in order to avoid otherwise unforeseen problems that can lead to significant remedial works on site and in some cases failures.