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Images, UC QuakeStudies

A panoramic photograph taken at the front of Christ Church Cathedral. The front of the cathedral has steel bracing against it to limit further damage. The upper part of the front wall has crumbled completely, exposing the inside space. The Chalice sculpture is to the right and the BNZ building can be seen in the background.

Images, UC QuakeStudies

The window of a shop in Kaiapoi, with the gutted interior just visible behind the signs. A sign on the window reads "The Scallywags beat us! We have moved 158.26 meters (sic) to the corner of Fuller Street and Williams Street". Many businesses moved temporarily or permanently due to earthquake damage.

Images, UC QuakeStudies

A photograph of the Speaker's Chair on display in the Canterbury Quakes exhibition at the Canterbury Museum. The Speaker's Chair stood at the southern end of the Stone Chamber of the Canterbury Provincial Chambers, and survived the 22 February 2011 earthquake despite the damage to the chamber.

Images, UC QuakeStudies

A weather-damaged Chinese lantern fallen to the ground in Victoria Square. The Chinese New Year Lantern Festival was to be held on Saturday 26 February and Sunday 27 February 2011 but was cancelled due to the earthquake. The lanterns hung in Victoria Square until they fell.

Videos, UC QuakeStudies

A video of a interview with Reverend Jenni Carter, the vicar of St John's Church in Hororata, about the 4 September 2010 earthquake. Carter talks about the morning of the September earthquake when she saw the damage to the church for the first time.

Videos, UC QuakeStudies

A video of a press conference with Bishop Victoria Matthews in the Botanic Gardens about the plans for the earthquake-damaged ChristChurch Cathedral. Matthews announces that the cathedral will be deconstructed, allowing the safe retrieval of taonga and heritage items within the building.

Images, UC QuakeStudies

The front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against it 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 at the cathedral.

Images, UC QuakeStudies

People gather in a fenced-off area of Cathedral Square to view the damage to the cathedral and surrounding buildings. In the centre is the plinth which formerly held the statue of John Robert Godley. Taken on a day when a walkway was opened up between Re:Start Mall and Cathedral Square to allow temporary public access.

Images, UC QuakeStudies

A bollard covered in tattered posters. The photographer comments, "After the Christchurch February 2011 earthquake no more adverts were pasted onto this advertising pillar. Over a year later the posters are starting to peel off and reveal older ones. It seems that the constant addition of new posters was keeping everything in equilibrium, but with no new posters everything is literally falling apart".

Images, UC QuakeStudies

Part of Mike Hewson's installation 'Homage To Lost Spaces' in the Cramner Courts building, a photograph of a young man working at a desk has been inserted into a gap in the building. The photographer comments, "Although Cranmer Courts are in ruins pictures have been inserted into the windows to make them look occupied".

Images, UC QuakeStudies

A digitally manipulated image of the Bandsmen's Memorial in Hagley Park. The photographer comments, "This memorial in Hagley Park in Christchurch can no longer be used due to large cracks at the base of most columns. This was mostly caused by the earthquake in February 2011, but later earthquakes have made the memorial even more dangerous".

Images, UC QuakeStudies

A photograph of an exhibition sign next to the Speaker's Chair on display in the Canterbury Quakes exhibition at the Canterbury Museum. The Speaker's Chair stood at the southern end of the Stone Chamber of the Canterbury Provincial Chambers, and survived the 22 February 2011 earthquake despite the damage to the chamber.

Images, UC QuakeStudies

A photograph of the north side of the ChristChurch Cathedral with the Citizen's Memorial to the left. The roof of the cathedral has been damaged, and many of the doors and windows boarded up. On the memorial, the angel's waist and neck have been braced to keep her standing.

Images, UC QuakeStudies

Members of the public take photographs of the damaged Christ Church Cathedral. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral. The tower and the front wall of the building have partially collapsed. Steel bracing has been added to the front wall for support.

Images, UC QuakeStudies

Members of the public take photographs of the damaged Christ Church Cathedral. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral. The tower and the front wall of the building have partially collapsed. Steel bracing has been added to the front wall for support.

Images, UC QuakeStudies

Members of the public take photographs of the damaged Christ Church Cathedral. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral. The tower and the front wall of the building have partially collapsed. Steel bracing has been added to the front wall for support.

Images, UC QuakeStudies

A photograph of the Citizen's Memorial outside the ChristChurch Cathedral on Cathedral Square. The angel in the memorial has bracing around her neck and waist to keep her upright. Behind the memorial, damage to the roof of the Cathedral can be seen. Wire fencing has been placed around the entire building.

Images, UC QuakeStudies

Members of the public take photographs of the damaged Christ Church Cathedral. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral. The tower and the front wall of the building have partially collapsed. Steel bracing has been added to the front wall for support.

Research papers, University of Canterbury Library

Impact between structures of bridge sections can play a major, unexpected role in seismic structural damage. Linear and non-linear models are developed to analyze structural impact and response of two single-degree-of-freedom structures, representing adjacent buildings or bridge sections. The analyses presented assess probability of impact, displacement change due to impact, and the probability of increased displacement due to impact. These are assessed over a matrix of structural periods for each degree-of-freedom, different impact coefficients of restitution, and a probabilistically scaled suite of earthquake events. Linear versus non-linear effects are assessed using a Ramberg-Osgood non-linear model for column inelasticity. The normalized distance, or gap-ratio (GR), defined as a percentage of the summed spectral displacements, is used to create probabilistic design requirements. Increasing GR and structural periods that are similar (T2/T1~0.8-1.25) significantly decrease the likelihood of impact, and vice-versa. Including column inelasticity and decreasing coefficient of restitution decrease displacement increases due to impact and thus reduce potential damage. A minimum GR~0.5-0.9 ensures that any displacement increases will be less than 10% for 90% of ground motions over all structural period combinations (0.2-5.0sec). These results enable probabilistic design guidelines to manage undesirable effects of impact– an important factor during the recent Canterbury, New Zealand Earthquakes.

Research papers, University of Canterbury Library

The 22nd February 2011, Mw 6.3 Christchurch earthquake in New Zealand caused major damage to critical infrastructure, including the healthcare system. The Natural Hazard Platform of NZ funded a short-term project called “Hospital Functions and Services” to support the Canterbury District Health Board’s (CDHB) efforts in capturing standardized data that describe the effects of the earthquake on the Canterbury region’s main hospital system. The project utilised a survey tool originally developed by researchers at Johns Hopkins University (JHU) to assess the loss of function of hospitals in the Maule and Bío-Bío regions following the 27th February 2010, Mw 8.8 Maule earthquake in Chile. This paper describes the application of the JHU tool for surveying the impact of Christchurch earthquake on the CDHB Hospital System, including the system’s residual capacity to deliver emergency response and health care. A short summary of the impact of the Christchurch earthquake on other CDHB public and private hospitals is also provided. This study demonstrates that, as was observed in other earthquakes around the world, the effects of damage to non-structural building components, equipment, utility lifelines, and transportation were far more disruptive than the minor structural damage observed in buildings (FEMA 2007). Earthquake related complications with re-supply and other organizational aspects also impacted the emergency response and the healthcare facilities’ residual capacity to deliver services in the short and long terms.

Videos, UC QuakeStudies

A video of an interview with Toni Burnside, the Principal of Central New Brighton School, about the proposed merger of her school with South New Brighton School. Burnside talks about her belief that the government's rationale for the merger exaggerated the earthquake damage to the site.

Images, UC QuakeStudies

The Wizard of Christchurch talks to a member of the public outside the damaged cathedral. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral. The tower and the front wall of the building have partially collapsed. Steel bracing has been added to the front wall for support.

Images, UC QuakeStudies

The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access. The Wizard of Christchurch talks to members of the public. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look.

Images, UC QuakeStudies

The front of Christ Church Cathedral showing its broken tower. Bracing has been placed on the front wall to limit further damage. Security fences have been placed around the cathedral to restrict access. The Wizard of Christchurch talks to members of the public. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look.