Abstract
The magnitude 6.3 earthquake that struck Christchurch on the 22nd February 2011 caused widespread damage to the multi-storey buildings within Christchurch’s central business district (CBD). Damage to the facades of these buildings was a clear contributor to the overall building damage. This paper presents the damage assessment of the facade systems from a survey of 217 multi-storey buildings in the Christchurch CBD. The survey covers only buildings greater than three stories in height, excluding the majority of unreinforced masonry facades, of which damage has been well documented. Since a building can have more than one type of facade system, a total of 371 facade systems are surveyed. Observation of facade damage is discussed and is presented in terms of its performance level. Trends in facade performance are examined in relation the structural parameters such as construction age and height.
Highlights
The earthquake that struck New Zealand‟s second largest city on the afternoon of the 22nd February 2011 took the lives of 182 people; the second largest toll from a natural disaster in New Zealand [1]
This paper presents the damage assessment overview of the facade systems of 217 buildings in the Christchurch Central Business District (CBD)
A maximum of two facade systems were surveyed per building and a facade system was only surveyed if it occupied at least 10% of the building‟s surface area
Summary
The magnitude 6.3 earthquake that struck Christchurch on the 22nd February 2011 caused widespread damage to the multi-storey buildings within Christchurch‟s central business district (CBD). Damage to the facades of these buildings was a clear contributor to the overall building damage. This paper presents the damage assessment of the facade systems from a survey of 217 multi-storey buildings in the Christchurch CBD. The survey covers only buildings greater than three stories in height, excluding the majority of unreinforced masonry facades, of which damage has been well documented. Since a building can have more than one type of facade system, a total of 371 facade systems are surveyed. Observation of facade damage is discussed and is presented in terms of its performance level. Trends in facade performance are examined in relation the structural parameters such as construction age and height
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