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Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Column reinforcement exposed under spalled concrete after the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

This shop on Tuam Street survived rhe magnitude 7.1 earthquake that hit Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

Crack in the parapet of this building, resulting from the magnitude 7,1 earthquake that struck Christchurch on 4 September 2010.

Research papers, University of Canterbury Library

In February of 2011, an earthquake destroyed the only all-weather athletics track in the city of Christchurch (New Zealand). The track has yet to be replaced, and so since the loss of the track, local Christchurch athletes have only had a grass track for training and preparation for championship events. This paper considers what effect the loss of the training facility has had on the performance of athletes from Christchurch at national championship events. Not surprisingly, the paper finds that there has been a deterioration in the performance in events that are heavily dependent upon the all-weather surface. However, somewhat more surprisingly, the loss of the track appears to have caused a significant improvement in the performance of Christchurch athletes in events that, while on the standard athletics program, are not heavily track dependent.

Research papers, The University of Auckland Library

Test results are presented for wall-diaphragm plate anchor connections that were axially loaded to rupture. These connection samples were extracted post-earthquake by sorting through the demolition debris from unreinforced masonry (URM) buildings damaged in the Christchurch earthquakes. Unfortunately the number of samples available for testing was small due to the difficulties associated with sample collection in an environment of continuing aftershocks and extensive demolition activity, when personal safety combined with commercial activity involving large demolition machinery were imperatives that inhibited more extensive sample collection for research purposes. Nevertheless, the presented data is expected to be of assistance to structural engineers undertaking seismic assessment of URM buildings that have existing wall-diaphragm anchor plate connections installed, where it may be necessary to estimate the capacity of the existing connection as an important parameter linked with determining the current seismic capacity of the building and therefore influencing the decision regarding whether supplementary connections should be installed.

Research papers, The University of Auckland Library

During the Christchurch earthquake of February 2011, several midrise reinforced concrete masonry (RCM) buildings showed performance levels that fall in the range of life safety to near collapse. A case study of one of these buildings, a six-story RCM building deemed to have reached the near collapse performance level, is presented in this paper. The RCM walls on the second floor failed due to toe crushing, reducing the building's lateral resistance in the east–west direction. A three-dimensional (3-D) nonlinear dynamic analysis was conducted to simulate the development of the governing failure mechanism. Analysis results showed that the walls that were damaged were subjected to large compression loads during the earthquake, which caused an increase in their in-plane lateral strength but reduced their ductility capacity. After toe crushing failure, axial instability of the model was prevented by a redistribution of gravity loads. VoR - Version of Record

Images, Alexander Turnbull Library

In a series of five out of six caricatures Christchurch Mayor Bob Parker shows photographs of himself helping people hurt by the 4th September earthquake and helping Christchurch after the earthquake. In the sixth caricature he disingenuously smirks and says that he has been so busy helping Christchurch that he forgot about the Mayoral election; he then affects a philosophical stance about his chances. Refers to the advantage that the earthquake of 4th September has given the incumbent mayor Bob Parker in the local body elections of 9th October. Black and white and colour versions of this cartoon are available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

In the first frame an excited rugby player runs across a rugby field wearing a shirt with the words 'Rugby Cup venues' printed on it and carrying a ball that represents 'extra games'. In the second frame a huge arm that represents 'extra costs' smashes into the player. Context - Christchurch cannot host the five games allocated to it. Auckland Council has agreed to pick up the $2.9 million tab it will cost to host three additional Rugby World Cup games. The government supports claims that the three bonus games could boost spending in Auckland by at least $28 million. (Stuff 31 March 2011) Colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Research papers, The University of Auckland Library

Unreinforced masonry (URM) buildings have repeatedly been shown to perform poorly in large magnitude earthquakes, with both New Zealand and Australia having a history of past earthquakes that have resulted in fatalities due to collapsed URM buildings. A comparison is presented here of the URM building stock and the seismic vulnerability of Christchurch and Adelaide in order to demonstrate the relevance to Australian cities of observations in Christchurch resulting from the 2010/2011 Canterbury earthquake swarm. It is shown that the materials, architecture and hence earthquake strength of URM buildings in both countries is comparable and that Adelaide and other cities of Australia have seismic vulnerability sufficient to cause major damage to their URM buildings should a design level earthquake occur. Such an earthquake is expected to cause major building damage, and fatalities should be expected.