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Research papers, University of Canterbury Library

Damage to ceiling systems resulted in a substantial financial loss to building owners in the Canterbury earthquakes. In some buildings, collapse of ceilings could easily have resulted in severe injury to occupants. This paper summarizes the types of ceiling damage observed in the Canterbury earthquakes, and draws useful lessons from the observed performance of different types of ceiling systems. Existing ceiling manufacturing and installing practices/regulations in New Zealand are critically scrutinized to identify deficiencies, and measures are suggested to improve the practice so that the damage to ceilings and the resulting loss are minimized in future earthquakes.

Images, UC QuakeStudies

The northern side of the Christ Church Cathedral with the cafe and store in the foreground. Shipping containers have been placed around the eastern side of the Cathedral to protect the road from falling debris. Wire fencing has also been placed around the building as a cordon. To the right, the damaged and party deconstructed tower can be seen with the missing spire which fell during the 22 February 2011 earthquake.

Images, UC QuakeStudies

A view of the Cranmer Court building on the corner of Kilmore and Montreal Streets, showing damage from the 4 September 2010 earthquake. Masonry has fallen away from the apexes of several of the building's gables, which have been reinforced with timber bracing. A green cord has been used to tie bracing to the octagonal section on the corner of the building. This corner section is the part that housed Plato Creative from March 2008 to November 2009.