The 6.3 magnitude earthquake that struck Christchurch on 22 February 2011 and the many aftershocks have been an enormous test of the performance of buildings. BRANZ Structural engineers provide some initial thoughts on how houses performed.
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House location on a hill or the flat, materials used and when it was built have proven to be among the factors that determined how properties stood up to the Canterbury earthquakes.
The Canterbury earthquakes have created a one-off opportunity to improve the local housing stock. A new service to support housing upgrades during earthquake repair is being rolled out across Canterbury.
The sheer scale of the anticipated rebuild in Christchurch will put unprecedented demand on the building supply chain. So far, it looks like it’s up to the challenge.
Could Christchurch become our first green city? An environmental rating tool developed specifically for the rebuild makes it a possibility.
The house repair work under way in Christchurch offers the perfect opportunity to improve the performance of earthquake-damaged homes with little additional disruption. The question is how to make the most of this rare opportunity.
BRANZ research shows that houses built to the current Building Code and standards generally stood up well to the Canterbury earthquakes. However, more complex specifically designed houses often had issues.