D5.D.5 UK National Annex to EC3
Adds values from the UK National Annex - titled NA to BS EN 1993-1-1:2005 - for use with Eurocode 3, or EN 1993-1-1:2005. The NA document makes small changes to the base document.
The following clauses are not implemented in STAAD.Pro:
- Clause 126.96.36.199(1) B – Slenderness for flexural buckling
- The UK NA specifies the value of λc0 for I, H channel or box section to be used in equation 6.59 of BS EN 1993-1-1:2005 as 0.4. However, STAAD.Pro does not use this clause for design per EC-3. Therefore, this clause is ignored for the UK National Annex.
- Clause 188.8.131.52(2)B – Modification factor "kfl"
- The value of the modification factor kfl to be used in equation 6.60 of BS EN 1993-1-1. However, STAAD.Pro does not use this clause for design per EC-3. Therefore, this clause is ignored for the UK National Annex.
The clauses/sections in EN 1993-1-1:2005 that have been dealt with in the UK National Annex (hereafter referred to as the UK-NA) are: