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Images for Earthquakes; more images...

Images, eqnz.chch.2010

Friday 22 February 2013. Flowers in road cones on corner of Hercules and Sabina Streets, Shirley, Christchurch. File reference: CCL-2013-02-22-River-of-FlowersDSC_03416.JPG From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Friday 22 February 2013. Flowers in road cones on corner of Hercules and Sabina Streets, Shirley, Christchurch. File reference: CCL-2013-02-22-River-of-FlowersDSC_03415.JPG From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Friday 22 February 2013. Flowers in road cones on corner of Hercules and Sabina Streets, Shirley, Christchurch. File reference: CCL-2013-02-22-River-of-FlowersDSC_03417.JPG From the collection of Christchurch City Libraries.

Research papers, University of Canterbury Library

During 2010 and 2011, a series of major earthquakes caused widespread damage in the city of Christchurch, New Zealand. The magnitude 6.3 quake in February 2011 caused 185 fatalities. In the ensuing months, the government progressively zoned residential land in Christchurch on the basis of its suitability for future occupation (considering damage from these quakes and future earthquake risk). Over 6,000 homes were placed in the ‘red-zone’, meaning that property owners were forced to sell their land to the Crown. This study analysed patterns of residential mobility amongst thirty-one red-zone households from the suburb of Southshore, Christchurch. Drawing on interviews and surveys, the research traced their experience from the zoning announcement until they had moved to a new residence. The research distinguished between short (before the zoning announcement) and long term (post the red zone ‘deadline’) forms of household relocation. The majority of households in the study were highly resistant to short term movement. Amongst those which did relocate before the zoning decision, the desire to maintain a valued social connection with a person outside of the earthquake environment was often an important factor. Some households also moved out of perceived necessity (e.g. due to lack of power or water). In terms of long-term relocation, concepts of affordability and safety were much more highly valued by the sample when purchasing post-quake property. This resulted in a distinct patterning of post-quake housing location choices. Perceived control over the moving process, relationship with government organisations and insurance companies, and time spent in the red-zone before moving all heavily influenced participants’ disaster experience. Contrary to previous studies, households in this study recorded higher levels of subjective well-being after relocating. The study proposed a typology of movers in the Christchurch post-disaster environment. Four mobility behaviours, or types, are identified: the Committed Stayers (CSs), the Environment Re-Creators (ERCs), the Resigned Acceptors (RAs), and the Opportunistic Movers (OMs). The CSs were defined by their immobility rather than their relocation aspirations, whilst the ERCs attempted to recreate or retain aspects of Southshore through their mobility. The RAs expressed a form of apathy towards the post-quake environment, whereas, on the other hand, the OMs moved relative to pre-earthquake plans, or opportunities that arose from the earthquake itself. Possibilities for further research include examining household adaptability to new residential environments and tracking further mobility patterns in the years following relocation from the red- zone.

Research papers, University of Canterbury Library

In recent years, significant research has been undertaken into the development of lead-extrusion damping technology. The high force-to-volume (HF2V) devices developed at the University of Canterbury have been the subject of much of this research. However, while these devices have undergone a limited range of velocity testing, limitations in test equipment has meant that they have never been tested at representative earthquake velocities. Such testing is important as the peak resistive force provided by the dampers under large velocity spikes is an important design input that must be known for structural applications. This manuscript presents the high-speed testing of HF2V devices with quasi-static force capacities of 250-300kN. These devices have been subjected to peak input velocities of approximately 200mm/s, producing peak resistive forces of approximately 350kN. The devices show stable hysteretic performance, with slight force reduction during high-speed testing due to heat build-up and softening of the lead working material. This force reduction is recovered following cyclic loading as heat is dissipated and the lead hardens again. The devices are shown to be only weakly velocity dependent, an advantage in that they do not deliver large forces to the connecting elements and surrounding structure if larger than expected response velocities occur. This high-speed testing is an important step towards uptake as it provides important information to designers.

Research papers, University of Canterbury Library

In recent years, significant research has been undertaken into the development of lead-extrusion damping technology. The high force-to-volume (HF2V) devices developed at the University of Canterbury have been the subject of much of this research. However, while these devices have undergone a limited range of velocity testing, limitations in test equipment has meant that they have never been tested at representative earthquake velocities. Such testing is important as the peak resistive force provided by the dampers under large velocity spikes is an important design input that must be known for structural applications. This manuscript presents the high-speed testing of HF2V devices with quasi-static force capacities of 250-300kN. These devices have been subjected to peak input velocities of approximately 200mm/s, producing peak resistive forces of approximately 350kN. The devices show stable hysteretic performance, with slight force reduction during high-speed testing due to heat build-up and softening of the lead working material. This force reduction is recovered following cyclic loading as heat is dissipated and the lead hardens again. The devices are shown to be only weakly velocity dependent, an advantage in that they do not deliver large forces to the connecting elements and surrounding structure if larger than expected response velocities occur. This high-speed testing is an important step towards uptake as it provides important information to designers.

Images, Alexander Turnbull Library

Orana Wildlife Park 'lodge' sleeps passengers from Christchurch airport with no accommodation and who would otherwise sleep at the terminal. The Park staff think that 'they get free accommodation and we have a new paying exhibit!' They have also put up a notice: 'Cheapskates - Do not feed'. Is this a solution to airport 'night kippers'? The shortage of accommodation in Christchurch due to earthquake damage led many air travellers to sleep overnight at the air terminal. Quantity: 1 digital cartoon(s).

Images, UC QuakeStudies

A photograph of a poster and picket signs in the window of the Earthquake Services building on the corner of Fitzgerald Avenue and Ferry Road. The poster depicts Gerry Brownlee in the style of Barack Obama's "Hope" campaign poster, and reads "Democracy nope". The picket signs read "Brownlee: rise, lies and pies" and "Overwrought, overdrawn, over EQC".

Videos, UC QuakeStudies

Aerial footage of a site in Avondale where several liquefaction remediation options are being tested. Gelignite explosives have been buried throughout the site. These will be set off to simulate liquefaction caused by an earthquake. The result, if successful, will help EQC protect people's houses from future earthquakes, and settle land claims. The video was recorded using a drone aircraft.