A u s t r a l i a

AS1170.4 – Structural design Actions Part 4: Earthquake Actions in Australia

2007

Standards Australia

Editorial note: According to the information provided by the national delegate, the code hasbeen changed in Oct. 2007, published in 2007 and enforced in 2008. The important parts of the Standard are selected for the World List 2008.

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Comments on Building Codes for Australia 1. General

a. Name of Country: Australia b. Name of Codes: AS1170.4 – Structural design Actions Part 4: Earthquake Actions in Australia

--- in English --- in Original Language

c. Issued by: Standards Australia d. Enforcement Year: Published in 2007 and enforced in 2008

2. Structural Design Method

a. Format: (please check) □ Working Stress Design : Allowable Stress ≧ Actual Stress □ Ultimate Strength Design: Ultimate Member Strength ≧ Required Member Strength

Limit State Design : Ultimate Lateral Strength ≧ Required Lateral Strength □ Other Design Method : (comment)

b. Material Strength (Concrete and Steel): Ultimate strength design is used in the material design Standards in Australia c. Strength Reduction Factors: Different strength reduction factors are used depending on the action and material type with values in the range 0.6-0.9. d. Load Factors for Gravity Loadings and Load Combination: 0.9xDead Load + Ultimate Earthquake Force 1.2xGravity Load + Ultimate Earthquake Force Gravity Load = Dead Load+ 0.3x Live Load e. Typical Live Load Values:

Office Buildings : 4 kN/m2

Residential Buildings: 1.5 kN/m2

f. Special Aspects of Structural Design Method

In case that your code is performance-based, please describe the fundamental seismic performance requirement. Design philosophy is to protect life and prevent collapse whilst allowing damage at the Ultimate Limit State Event.

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