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Images, UC QuakeStudies

A photograph of a dusty monitor in an earthquake-damaged building on Poplar Street taken during the Residential Access Project. The Residential Access Project gave residents temporary access within the red-zone cordon in order to retrieve items from their homes after the 22 February 2011 earthquake. Dislodged bricks can also be seen around the monitor.

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. The monitors are placed amongst wooden pallets, an excavator, and other building material.

Audio, Radio New Zealand

The policing of building safety systems is being cut back nationwide. The Ministry of Business, Innovation and Employment is reducing its monitoring of the building warrants of fitness scheme that covers 16 crucial safety systems including fire measures. This coincides with it having to do more checks on what councils are doing regarding fences around pools and earthquake-prone buildings. The cutback is despite ministry reviews which show many councils do little to audit the building warrants they issue. An inspector of building safety systems and adviser on warrants, Charlie Loughnan of Canterbury, told our reporter Phil Pennington that less monitoring is not a good idea.

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, The University of Auckland Library

Following the devastation of the Canterbury earthquake sequence a unique opportunity exists to rebuild and restructure the city of Christchurch, ensuring that its infrastructure is constructed better than before and is innovative. By installing an integrated grid of modern sensor technologies into concrete structures during the rebuild of the Christchurch CBD, the aim is to develop a network of self-monitored ‘digital buildings’. A diverse range of data will be recorded, potentially including parameters such as concrete stresses, strains, thermal deformations, acoustics and the monitoring of corrosion of reinforcement bars. This procedure will allow an on-going complete assessment of the structure’s performance and service life, both before and after seismic activity. The data generated from the embedded and surface mounted sensors will be analysed to allow an innovative and real-time health monitoring solution where structural integrity is continuously known. This indication of building performance will allow the structure to alert owners, engineers and asset managers of developing problems prior to failure thresholds being reached. A range of potential sensor technologies for monitoring the performance of existing and newly constructed concrete buildings is discussed. A description of monitoring work conducted on existing buildings during the July 2013 Cook Strait earthquake sequence is included, along with details of current work that investigates the performance of sensing technologies for detecting crack formation in concrete specimens. The potential market for managing the real-time health of installed infrastructure is huge. Civil structures all over the world require regular visual inspections in order to determine their structural integrity. The information recorded during the Christchurch rebuild will generate crucial data sets that will be beneficial in understanding the behaviour of concrete over the complete life cycle of the structure, from construction through to operation and building repairs until the time of failure. VoR - Version of Record

Research papers, University of Canterbury Library

Rapid, accurate structural health monitoring (SHM) assesses damage to optimise decision-making. Many SHM methods are designed to track nonlinear stiffness changes as damage. However, highly nonlinear pinched hysteretic systems are problematic in SHM. Model-based SHM often fails as any mismatch between model and measured response dynamics leads to significant error. Thus, modelfree methods of hysteresis loop tracking methods have emerged. This study compares the robustness and accuracy in the presence of significant measurement noise of the proven hysteresis loop analysis (HLA) SHM method with 3 emerging model-free methods and 2 further novel adaptations of these methods using a highly nonlinear, 6-story numerical structure to provide a known ground-truth. Mean absolute errors in identifying a known nonlinear stiffness trajectory assessed at four points over two successive ground motion inputs from September 2010 and February 2011 in Christchurch range from 1.71-10.52%. However, the variability is far wider with maximum errors ranging from 3.90-49.72%, where the second largest maximum absolute error was still 19.74%. The lowest mean and maximum absolute errors were for the HLA method. The next best method had mean absolute error of 2.92% and a maximum of 10.51%. These results show the clear superiority of the HLA method over all current emerging model-free methods designed to manage the highly nonlinear pinching responses common in reinforced concrete structures. These results, combined with high robustness and accuracy in scaled and fullscale experimental studies, provide further validation for using HLA for practical implementation.

Videos, UC QuakeStudies

A video of a presentation by Jane Morgan and Annabel Begg during the Social Recovery Stream of the 2016 People in Disasters Conference. The presentation is titled, "Monitoring Social Recovery in Greater Christchurch".The abstract for this presentation reads as follows: This presentation provides an overview of the Canterbury Earthquake Recovery Authority's Social Recovery Lessons and Legacy project. This project was commissioned in 2014 and completed in December 2015. It had three main aims: to capture Canterbury Earthquake Recovery Authority's role in social recovery after the Canterbury earthquakes, to identify lessons learned, and to disseminate these lessons to future recovery practitioners. The project scope spanned four Canterbury Earthquake Recovery Authority work programmes: The Residential Red Zone, the Social and Cultural Outcomes, the Housing Programme, and the Community Resilience Programme. Participants included both Canterbury Earthquake Recovery Authority employees, people from within a range of regional and national agencies, and community and public sector organisations who worked with Canterbury Earthquake Recovery Authority over time. The presentation will outline the origin and design of the project, and present some key findings.

Research papers, University of Canterbury Library

Meeting the Sustainable Development Goals by 2030 involves transformational change in the business of business, and social enterprises can lead the way in such change. We studied Cultivate, one such social enterprise in Christchurch, New Zealand, a city still recovering from the 2010/11 Canterbury earthquakes. Cultivate works with vulnerable youth to transform donated compost into garden vegetables for local restaurants and businesses. Cultivate’s objectives align with SDG concerns with poverty and hunger (1 & 2), social protection (3 & 4), and sustainable human settlements (6 & 11). Like many grant-supported organisations, Cultivate is required to track and measure its progress. Given the organisation’s holistic objectives, however, adequately accounting for its impact reporting is not straightforward. Our action research project engaged Cultivate staff and youth-workers to generate meaningful ways of measuring impact. Elaborating the Community Economy Return on Investment tool (CEROI), we explore how participatory audit processes can capture impacts on individuals, organisations, and the wider community in ways that extend capacities to act collectively. We conclude that Cultivate and social enterprises like it offer insights regarding how to align values and practices, commercial activity and wellbeing in ways that accrue to individuals, organisations and the broader civic-community.

Research papers, University of Canterbury Library

In this paper we outline the process and outcomes of a multi-agency, multi-sector research collaboration, led by the Canterbury Earthquake Research Authority (CERA). The CERA Wellbeing Survey (CWS) is a serial, cross-sectional survey that is to be repeated six-monthly (in April and September) until the end of the CERA Act, in April 2016. The survey gathers self-reported wellbeing data to supplement the monitoring of the social recovery undertaken through CERA's Canterbury Wellbeing Index. Thereby informing a range of relevant agency decision-making, the CWS was also intended to provide the community and other sectors with a broad indication of how the population is tracking in the recovery. The primary objective was to ensure that decision-making was appropriately informed, with the concurrent aim of compiling a robust dataset that is of value to future researchers, and to the wider, global hazard and disaster research endeavor. The paper begins with an outline of both the Canterbury earthquake sequence, and the research context informing this collaborative project, before reporting on the methodology and significant results to date. It concludes with a discussion of both the survey results, and the collaborative process through which it was developed.

Research papers, University of Canterbury Library

The September 2010 Canterbury and February 2011 Christchurch earthquakes and associated aftershocks have shown that the isolator displacement in Christchurch Women's Hospital (Christchurch City's only base-isolated structure) was significantly less than expected. Occupant accounts of the events have also indicated that the accelerations within the hospital superstructure were larger than would usually be expected within a base-isolated structure and that residual low-level shaking lasts for a longer period of time following the strong-motion of an event than for non-isolated structures.

Images, Alexander Turnbull Library

A Christchurch seismic monitor churns out reams of paper with wild fluctuations showing earthquakes and aftershocks. Nearby two men examine a second monitor and one of them says 'This one's connected to Gerry Brownlee!' The reams of paper show a perfectly straight line - it appears that nothing is going on in Gerry Brownlee's head. Context - A sense that the Minister for Earthquake Recovery is being less than effective. Colour and black and white versions available Quantity: 2 digital cartoon(s).

Audio, Radio New Zealand

Dr. Mark Quiqley is Senior Lecturer in Active Tectonics and Geomorphology in the Department of Geological Sciences at the University of Canterbury. He is part of the team involved in the scientific response to the Canterbury earthquake and has been monitoring it from the air.