This National Annex gives:
a) the UK decisions for the Nationally Determined Parameters
described in the following subclauses of BS EN 1998-4:2006:
1.1(4)
2.1.2(4)P
2.1.3(5)P
2.1.4(8)
2.2(3)
2.3.3.3(2)P
2.5.2(3)P
3.1(2)P
4.5.1.3(3)
4.5.2.3(2)P
b) the UK decisions on the status of BS EN 1998-4:2006 informative
annexes;
c) references to non-contradictory complementary information.
NA to BS EN 1998-4-2006 history
2008NA to BS EN 1998-4-2006 UK National Annex to Eurocode 8: Design of structures for earthquake resistance – Part 4: Silos, tanks and pipelines