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Research papers, University of Canterbury Library

This paper describes the performance of (or damage to) ceilings in buildings during the 22nd February 2011 Christchurch earthquake and the subsequent aftershocks. In buildings that suffered severe structural damage, ceilings and other non-structural components (rather expectedly) failed, but even in buildings with little damage to their structural systems, ceilings were found to be severely damaged. The extent of ceiling damage, where the ceilings were subject to severe shaking, depended on the type of the ceiling system, the size and weight of the ceilings and the interaction of ceilings with other elements. The varieties and extent of observed ceiling damage are discussed in this paper with the help of photographs taken after the earthquake.

Images, UC QuakeStudies

Damage to the front of Christ Church Cathedral. The tower has been damaged and bracing has been placed on the front wall (right) to limit further damage. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look.

Videos, UC QuakeStudies

Part seven of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Videos, UC QuakeStudies

Part two of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Videos, UC QuakeStudies

Part six of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Videos, UC QuakeStudies

Part five of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Videos, UC QuakeStudies

Part four of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Videos, UC QuakeStudies

Part three of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.

Research papers, University of Canterbury Library

Timber-based hybrid structures provide a prospective solution for utilizing environmentally friendly timber material in the construction of mid-rise or high-rise structures. This study mainly focuses on structural damage evaluation for a type of timber-steel hybrid structures, which incorporate prefabricated light wood frame shear walls into steel moment-resisting frames (SMRFs). The structural damage of such a hybrid structure was evaluated through shake table tests on a four-story large-scale timber-steel hybrid structure. Four ground motion records (i.e., Wenchuan earthquake, Canterbury earthquake, El-Centro earthquake, and Kobe earthquake) were chosen for the tests, with the consideration of three different probability levels (i.e., minor, moderate and major earthquakes) for each record. During the shake table tests, the hybrid structure performed quite well with visual damage only to wood shear walls. No visual damage in SMRF and the frame-to-wall connections was observed. The correlation of visual damage to seismic intensity, modal-based damage index and inter-story drift was discussed. The reported work provided a basis of knowledge for performance-based seismic design (PBSD) for such timber-based hybrid structures.

Images, eqnz.chch.2010

This statue of the Virgin Mary stood in the south tower of The Cathedral of the Blessed Sacrament and had been facing inside from when she was placed there and through the September 2010 earthquake. That changed on February 22 2010 at 12.51pm when Christchurch was rocked by a 6.3 magnitude earthquake. During the violent shaking motion Mary was t...

Images, eqnz.chch.2010

Overlooking McCormacks bay out across the city with the Southern Alps as a backdrop. There is still a strong effect from the July 11, 2011 Volcanic erruption (Puyehue) in Chile. Ash made it over to New Zealand causing very strong colours at sunset. The colours have not been artificially changed and its not a mash up. The parts of the city (and...

Videos, UC QuakeStudies

Part one of a video series about the first stage of the Tonkin & Taylor Geotechnical Land Damage Assessment and Reinstatement Report. The report was prepared for the Earthquake Commission after the 4 September 2010 earthquake.