scope:

This Standard sets out procedures for determining wind speeds and resulting wind actions to be used in the structural design of structures subjected to wind actions other than those caused by tornadoes.

The Standard covers structures within the following criteria:

(a) Buildings less than 200 m high.

(b) Structures with roof spans less than 100 m.

(c) Structures other than offshore structures, bridges and transmission towers.

NOTES:

1 This Standard is a stand-alone document for structures within the above criteria. It may be used, in general, for all structures but other information may be necessary. Guidance on wind tunnel testing, reliable references and alternative data is given in AS/NZS 1170.2 Supp 1, Structural design actions-Wind actions-Commentary (Supplement to AS/NZS 1170.2:2002).

2 Where structures have natural frequencies less than 1 Hz, Section 6 requires dynamic analysis to be carried out (see Section 6).

3 In this document, the words 'this Standard' indicate AS/NZS 1170.2, which is regarded as Part 2 of the AS/NZS 1170 series of Standards (see Preface).