The rise of liquefaction rules
After the Canterbury earthquakes, regulations governing foundations changed. Initially only for the Canterbury region, they were later rolled out around New Zealand. What are the changes and what do they mean?
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Practical how-to articles for builders and designers showing good industry practice and interpretation of the NZ Building Code and standards.
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By Maria Grace – 1 August 2022, Build 191
After the Canterbury earthquakes, regulations governing foundations changed. Initially only for the Canterbury region, they were later rolled out around New Zealand. What are the changes and what do they mean?
By Angela Liu, Roger Shelton – 1 April 2021, Build 183
While the bracing requirements in NZS 3604:2011 Timber-framed buildings suit most buildings, the distribution rules of clause 5.4.7 are too lenient for some complex designs. During earthquakes, some Building Code-compliant buildings may move or flex, causing extensive damage. BRANZ research found which buildings are affected and suggests changes.