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Research papers, The University of Auckland Library

Micro - electro - mechanical system (MEMS) based accelerometers are now frequently used in many different parts of our day - to - day lives. It is also increasingly being used for structural testing applications. Researchers have had res ervation of using these devices as they are relatively untested, but now with the wider adoption, it provides a much cheaper and more versatile tool for structural engineering researchers. A number of damaged buildings in the Christchurch Central Business District (CBD) were instrumented with a number of low - cost MEMS accelerometers after the major Christchurch earthquakes. The accelerometers captured extremely high quality building response data as the buildings experienced thousands of aftershocks. This d ata set was amongst one of only a handful of data set s available around the world which provides building response data subjected to real ground motion. Furthermore, due to technological advances, a much larger than usual number of accelerometers has been deployed making the data set one of the most comprehensive available. This data set is utilised to extract modal parameters of the buildings. This paper summarises the operating requirements and preference for using such accelerometers for experimental mod al analysis. The challenges for adapting MEMS based devices for successful modal parameters identification are also discussed.

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Close up of the cranes working on the Clarendon Tower. Big Red behind is now the crane in Christchurch capable of lifting the largest load. The yellow crane is a tower crane which is still being assembled".

Audio, Radio New Zealand

After a damning report into the CTV building, how many other Christchurch buildings had faults when the earthquake struck? Police investigate the tragic death of a five year old and when so many businesses are struggling, how did the country's big banks increase profits by a quarter?

Audio, Radio New Zealand

Topic 1: The Minister for Earthquake Recovery, Gerry Brownlee, was quick to apologise to the Christchurch Mayor Bob Parker for calling him a clown. Topic 2: The Electoral Commission says John Key's hour-long pre-election radio show gave him the chance to raise his personal profile unchallenged.

Images, UC QuakeStudies

A montage of photographs of the creation of the installation 'Tonic'. The installation is part of the LUXCITY event. Tutors: Annabel Pretty, Cesar Wagner, Peter McPherson

Images, UC QuakeStudies

A photograph of an installation that forms part of the '60 Lights Market' at the LUXCITY event. Coordinators: Jeongbin Ok, Tiago Rorke, Jonathan Coates; student: Tom Hall

Images, UC QuakeStudies

A photograph of crowds at the LUXCITY event. The photograph shows an installation on Worcester Street, with the new Press building in the background. The installation is titled "Murmur".

Images, UC QuakeStudies

The word 'faith' has been formed by flowers on the cordon fence beside St John the Baptist Church on Latimer Square. The photographer comments, "If I remember correctly this has been on the fence surrounding the Christchurch earthquake red zone for quite a while and looks remarkably pristine".

Images, UC QuakeStudies

A snapshot from GPS Boomerang's SmartBird flight over the Christchurch red zone on 23 December 2012, looking over Hereford Street with the Re:Start container mall visible in the bottom right, Oxford Terrace to the left. The buildings at the end of Cashel Street near Oxford Terrace have been demolished.

Images, UC QuakeStudies

A photograph of an installation on the corner of Gloucester Street and Colombo Street. The installation is titled "Etch-a-Sketch", and is part of the LUXCITY event.

Images, UC QuakeStudies

Members of the public view the damaged tower of Christ Church Cathedral. Bracing has been placed on the front wall to the right to limit further damage. In the centre of the crowd stands a wire cage filled with stones. After the earthquake, love notes to Christchurch were written on the stones.

Images, UC QuakeStudies

A digitally manipulated image of a direction signpost, with every sign pointing to parking. The photographer comments, "With around 70% of the buildings to be demolished in the CBD, Christchurch, New Zealand will be the biggest parking lot in the world for a few years".

Research papers, University of Canterbury Library

Organisations locate strategically within Business Districts (CBDs) in order to cultivate their image, increase their profile, and improve access to customers, suppliers, and services. While CBDs offer an economic benefit to organisations, they also present a unique set of hazard vulnerabilities and planning challenges for businesses. As of May 2012, the Christchurch CBD has been partially cordoned off for over 14 months. Economic activity within the cordoned CBD, which previously contained 6,000 businesses and over 51,000 workers, has been significantly diminished and organisations have been forced to find new ways of operating. The vulnerabilities and resilience of CBDs not only influences outcomes for CBD organisations, but also the broader interconnected (urban/regional/national) system. A CBD is a hub of economic, social, and built infrastructure within a network of links and nodes. When the hub is disrupted all of the people, objects, and transactions that usually flow into and out of the hub must be redirected elsewhere. In an urban situation this means traffic jams in peripheries of the city, increased prices of commercial property, and capital flight; all of which are currently being faced in Canterbury. This report presents the lessons learned from organisations in CBDs affected by the Canterbury earthquakes. Here we focus on the Christchurch CBD; however, several urban town centres were extensively disrupted by the earthquakes. The statistics and discussion presented in this report are based on the results of an ongoing study conducted by Resilient Organisations (www.resorgs.org.nz). The data was captured using two questionnaire surveys of Canterbury organisations (issued November 2010 and May 2011), interviews with key informants, and in-depth case studies of organisations. Several industry sectors were sampled, and geographic samples of organisations in the Christchurch CBD, Lyttelton, and the Kaiapoi town centre were also collected. Results in this report describing “non-CBD organisations” refer to all organisations outside of the Christchurch CBD, Lyttelton, and Kaiapoi town centres.

Images, Canterbury Museum

One pair of size 3-8 women's red and black striped merino wool socks with a black seismograph marking above the ankle; now separated from their red, white and black branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22 F...

Images, Canterbury Museum

Two pairs of size 11-13 red and black striped merino wool socks with a black seismograph marking above the ankle; held together by black, red and white branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22 February 2011 ...

Images, Canterbury Museum

One pair of size 8-12 men's black merino wool Executive Aftersocks socks with a red seismograph marking above the ankle; now separated from their red, white and black branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22...

Research Papers, Lincoln University

The devastating earthquakes of September 2010 and February 2011 have without question upset the Christchurch City way of life for all. Families and businesses, as well as the natural and built environments have been directly affected, and our social landscapes have since evolved to accommodate the visible changes. Though not perhaps seen as a priority, the Christchurch nightlife has been profoundly altered by the quakes and the once popular CBD clubbing scene has ceased to exist. The concern highlighted in this article is the way in which this has put pressure on suburban bars and the the implications of this for local residents.

Research papers, University of Canterbury Library

Following exposure to trauma, stress reactions are initially adaptive. However, some individuals’ psychological response can become maladaptive with long-lasting impairment to functioning. Most people with initial symptoms of stress recover, and thus it is important to distinguish individuals who are at risk of continuing difficulties so that resources are allocated appropriately. Investigations of predictors of PTSD development have largely focused on relational and combat-related trauma, with very limited research looking at natural disasters. This study assessed the nature and severity of psychological difficulties experienced in 101 people seeking treatment following exposure to a significant earthquake that killed 185 people. Peritraumatic dissociation, posttraumatic stress symptoms, symptoms of anxiety, symptoms of depression, and social isolation were assessed. Descriptive analyses revealed the sample to be a highly impaired group, with particularly high levels of posttraumatic stress symptoms. Path analysis was used to determine whether the experience of some psychological difficulties predicted experience of others. As hypothesised, peritraumatic dissociation was found to predict posttraumatic stress symptoms and symptoms of anxiety. Posttraumatic stress symptoms then predicted symptoms of anxiety and symptoms of depression. Depression and anxiety were highly correlated. Contrary to expectations, social isolation was not significantly related to any other psychological variables. These findings justify the provision of psychological support following a natural disaster and suggest the benefit of assessing peritraumatic dissociation and posttraumatic stress symptoms soon after the event to identify people in need of monitoring and intervention.

Images, UC QuakeStudies

A photograph of footage of Cathedral Square playing on a number of computer monitors as part of Gap Filler's ninth project, Thinking Outside the Square. The footage was sourced from the Christchurch community and cut into an hour-long video spanning 100 years.

Images, UC QuakeStudies

A photograph of footage of Cathedral Square playing on a number of computer monitors as part of Gap Filler's ninth project, Thinking Outside the Square. The footage was sourced from the Christchurch community and cut into an hour-long video spanning 100 years.

Images, UC QuakeStudies

A photograph of footage of Cathedral Square playing on a number of computer monitors as part of Gap Filler's ninth project, Thinking Outside the Square. The footage was sourced from the Christchurch community and cut into an hour-long video spanning 100 years.

Images, UC QuakeStudies

A photograph of footage of Cathedral Square playing on a number of computer monitors as part of Gap Filler's ninth project, Thinking Outside the Square. The footage was sourced from the Christchurch community and cut into an hour-long video spanning 100 years.

Images, UC QuakeStudies

A photograph of footage of Cathedral Square playing on a number of computer monitors as part of Gap Filler's ninth project, Thinking Outside the Square. The footage was sourced from the Christchurch community and cut into an hour-long video spanning 100 years.

Research papers, University of Canterbury Library

This paper provides a comparison between the strong ground motions observed in the Christchurch central business district in the 4 September 2010 Mw7.1 Darfield, and 22 February 2011 Mw6.3 Christchurch earthquakes with those observed in Tokyo during the 11 March 2011 Mw9.0 Tohoku earthquake. Despite Tokyo being located approximately 110km from the nearest part of the causative rupture, the ground motions observed from the Tohoku earthquake were strong enough to cause structural damage in Tokyo and also significant liquefaction to loose reclaimed soils in Tokyo bay. Comparisons include the strong motion time histories, response spectra, significant durations and arias intensity. The implications for large earthquakes in New Zealand are also briefly discussed.

Audio, Radio New Zealand

With many in Christchurch still living in earthquake damaged houses, the cold snap has prompted a call for temporary emergency shelters. Daphne Lewis-Mannix lives in a quake-damaged home in New Brighton. Her power was out last night, and she's been shivering overnight, already sick with a cold before the storm hit.

Images, UC QuakeStudies

A photograph of the entrance to Gap Filler's temporary outdoor cinema on the corner of Madras and St Asaph Streets. The entranceway is made of lights on a steel frame, and leads to a painted "red carpet".