The UK NA For EN 1992-2

The background to key provisions of the UK National Annex (NA) to EN 1992-2 is discussed. Areas considered include web crushing. For this, the UK NA makes EN 1992 slightly more conservative for some cases and significantly more conservative for some more unusual cases where it was felt there was insufficient justification for major relaxations of past practice. Short shear span enhancement is also considered where the UK changed the rules mainly for ease of use although it sometimes makes design more economic. The recommended approach and values for cracking criteria are largely followed even though they represent a significant change to past practice as the justification.