Search

found 429 results

Images for that; more images...

Images, UC QuakeStudies

The feet of a fallen mannequin rest against a shop window. The photographer comments, "It is enough to make your toes curl. This is a mannequin that has been on its back since this clothing store was cleared out after the Christchurch earthquake. The store, which is in the earthquake red zone, has been off limits and untouched in the for two years".

Images, UC QuakeStudies

The laying of new sewers in Bridge Street, South Brighton. Road cones have been placed along the road works. Temporary road signs indicate that the current speed limit is 30 km/h. Diggers, four-wheel drive vehicles and a truck are parked beside piles of gravel and a yellow sewer pump.

Images, UC QuakeStudies

A digitally manipulated image of an excavator. The photographer comments, "This is a huge excavator in the Christchurch CBD. It is being used to clear away the enormous amount of rubble from the buildings being demolished. It seems that nearly all the big machinery from all other the world has been needed in the clean up of the earthquake damaged buildings and utilities".

Images, UC QuakeStudies

Workers repairing the James Hight building at the University of Canterbury, seen from inside the library. The photographer comments, "Yet another change of workplace for our E-Learning group, as the University juggles people and buildings to carry out earthquake repairs. Our area looks over a central roof space that has seating areas. It may be a while before we're allowed out there though".

Images, UC QuakeStudies

A sign on the Kaiapoi Public Library and District Council Centre explaining that the temporary library and service centre has relocated. The sign reads "We have moved. The temporary library has moved to the Swim Club rooms beside the Kaiapoi Aquatic Centre corner of Cass and Davie Streets opposite Danley Square. The Kaiapoi Service Centre has move to the Kaiapoi Community Centre, 24 Sewell Street. Waiamakariri District Council.

Images, UC QuakeStudies

A digitally manipulated photograph of the foyer of the Christchurch Art Gallery. The photographer comments, "The Christchurch art gallery has been closed to the public since the February 2011 earthquake and its reopening seems to be in the distant future. I want to convey the feeling that if art is not looked at darkness starts to overcome it and the paint starts to peel off".

Images, UC QuakeStudies

A photograph of the site of the Crowne Plaza Hotel on the corner of Kilmore and Durham Streets. The hotel has been demolished into large piles of rubble which two excavators are working to clear. A sign on the cordon fence indicates that the demolition is being carried out by Grant Mackay Demolition Co. and Leigh Construction.

Images, UC QuakeStudies

The Youth Shop, parth of the emerging Youth Hub on Barbadoes Street. The Youth Hub aims to be a one-stop-shop for youth to address their health, education, employment, volunteering, justice and welfare needs. On the front is a sign that says ' Canterbury Youth Shop, 294 Barbadoes Street, CHCH. 10am-4pm. Come mee the crew. Job Searching. Study Options. Youth Employment Advisors' and 'Hire me' in the background.

Research papers, University of Canterbury Library

Small, tight-knit communities, are complex to manage from outside during a disaster. The township of Lyttelton, New Zealand, and the communities of Corsair Bay, Cass Bay, and Rapaki to the east, are especially more so difficult due to the terrain that encloses them, which caused them to be cut-off from Christchurch, the largest city in the South Island, barely 10 km away, after the Mw 7.1 Darfield Earthquake and subsequent Canterbury Earthquake Sequence. Lyttelton has a very strong and deep-rooted community spirit that draws people to want to be a part of Lyttelton life. It is predominantly residential on the slopes, with retail space, service and light industry nestled near the harbour. It has heritage buildings stretching back to the very foundation of Canterbury yet hosts the largest, modern deep-water port for the region. This study contains two surveys: one circulated shortly before the Darfield Earthquake and one circulated in July 2011, after the Christchurch and Sumner Earthquakes. An analytical comparison of the participants’ household preparedness for disaster before the Darfield Earthquake and after the Christchurch and Sumner Earthquakes was performed. A population spatiotemporal distribution map was produced that shows the population in three-hourly increments over a week to inform exposure to vulnerability to natural hazards. The study went on to analyse the responses of the participants in the immediate period following the Chrsitchurch and Sumner Earthquakes, including their homeward and subsequent journeys, and the decision to evacuate or stay in their homes. Possible predictors to a decision to evacuate some or all members of the household were tested. The study also asked participants’ views on the events since September 2010 for analysis.

Research papers, University of Canterbury Library

A linear and non-linear model are developed to analyze the structural impact and response of two single degree of freedom structures, representing adjacent buildings or bridge sections. Different impact coefficients of restitution, normalized distances between structures and a range of different structural periods are considered. The probability of impact and the displacement changes that can result from these collisions are computed. The likelihood of an increase in displacement is quantified in a probabilistic sense. A full matrix of response simulations are performed to individually investigate and delineate the effects of inter-structure gap-ratio, period ratios, structural non-linearity and impact elasticity. Column inelasticity is incorporated through the use of a Ramberg-Osgood type hysteresis rule. The minimum normalized distance, or gap-ratio, required between two structures to ensure that the likelihood of increased displacement of more than 10% for either structure for 90% of the given earthquake ground motions is assessed as one of many possible design risk bounds. Increased gap ratio, defined as a percentage of spectral displacement, is shown to reduce the likelihood of impact, as well as close structural periods. Larger differences in the relative periods of the two structures were seen to significantly increase the likelihood of impact. Inclusion of column inelasticity and higher plasticity of impact reduce displacement increases from impact and thus possible further damage to the structures. Such information can be used as a guideline to manage undesirable effects of impact in design - a factor that has been observed to be very important during the recent Canterbury, New Zealand Earthquakes.

Research papers, The University of Auckland Library

In 2010 and 2011, Aotearoa New Zealand was hit by a number of major disasters involving loss of human life and severe disruption to social, ecological and economic wellbeing. The Pike River mine explosions were closely followed by a sequence of major earthquakes in Christchurch, seismic events that have permanently altered the lives of thousands of people in our third largest city, the closure of the central business district and the effective abandonment of whole residential areas. In early October 2011, the ship, Rena, grounded on a reef off the port of Tauranga and threatened a major oil spill throughout the Bay of Plenty, where local communities with spiritual and cultural connections to the land depend on sea food as well as thrive on tourism. The Council for Social Work Education Aotearoa New Zealand (CSWEANZ), representing all the Schools of Social Work in New Zealand, held a ‘Disaster Curriculum’ day in November 2011, at which social workers and Civil Defence leaders involved in the Christchurch earthquakes, the Rena Disaster, Fiji floods and the Boxing Day tsunami presented their narrative experience of disaster response and recovery. Workshops discussed and identified core elements that participants considered vital to a social work curriculum that would enable social work graduates in a range of community and cultural settings to respond in safe, creative and informed ways. We present our core ideas for a social work disaster curriculum and consider a wide range of educational content based on existing knowledge bases and new content within a disaster framework. http://www.swsd-stockholm-2012.org/

Research papers, University of Canterbury Library

Previous earthquakes demonstrated destructive effects of soil-structure interaction on structural response. For example, in the 1970 Gediz earthquake in Turkey, part of a factory was demolished in a town 135 km from the epicentre, while no other buildings in the town were damaged. Subsequent investigations revealed that the fundamental period of vibration of the factory was approximately equal to that of the underlying soil. This alignment provided a resonance effect and led to collapse of the structure. Another dramatic example took place in Adapazari, during the 1999 Kocaeli earthquake where several foundations failed due to either bearing capacity exceedance or foundation uplifting, consequently, damaging the structure. Finally, the Christchurch 2012 earthquakes have shown that significant nonlinear action in the soil and soil-foundation interface can be expected due to high levels of seismic excitation and spectral acceleration. This nonlinearity, in turn, significantly influenced the response of the structure interacting with the soil-foundation underneath. Extensive research over more than 35 years has focused on the subject of seismic soil-structure interaction. However, since the response of soil-structure systems to seismic forces is extremely complex, burdened by uncertainties in system parameters and variability in ground motions, the role of soil-structure interaction on the structural response is still controversial. Conventional design procedures suggest that soil-structure interaction effects on the structural response can be conservatively ignored. However, more recent studies show that soil-structure interaction can be either beneficial or detrimental, depending on the soil-structure-earthquake scenarios considered. In view of the above mentioned issues, this research aims to utilise a comprehensive and systematic probabilistic methodology, as the most rational way, to quantify the effects of soil-structure interaction on the structural response considering both aleatory and epistemic uncertainties. The goal is achieved by examining the response of established rheological single-degree-of-freedom systems located on shallow-foundation and excited by ground motions with different spectral characteristics. In this regard, four main phases are followed. First, the effects of seismic soil-structure interaction on the response of structures with linear behaviour are investigated using a robust stochastic approach. Herein, the soil-foundation interface is modelled by an equivalent linear cone model. This phase is mainly considered to examine the influence of soil-structure interaction on the approach that has been adopted in the building codes for developing design spectrum and defining the seismic forces acting on the structure. Second, the effects of structural nonlinearity on the role of soil-structure interaction in modifying seismic structural response are studied. The same stochastic approach as phase 1 is followed, while three different types of structural force-deflection behaviour are examined. Third, a systematic fashion is carried out to look for any possible correlation between soil, structural, and system parameters and the degree of soil-structure interaction effects on the structural response. An attempt is made to identify the key parameters whose variation significantly affects the structural response. In addition, it is tried to define the critical range of variation of parameters of consequent. Finally, the impact of soil-foundation interface nonlinearity on the soil-structure interaction analysis is examined. In this regard, a newly developed macro-element covering both material and geometrical soil-foundation interface nonlinearity is implemented in a finite-element program Raumoko 3D. This model is then used in an extensive probabilistic simulation to compare the effects of linear and nonlinear soil-structure interaction on the structural response. This research is concluded by reviewing the current design guidelines incorporating soil-structure interaction effects in their design procedures. A discussion is then followed on the inadequacies of current procedures based on the outcomes of this study.

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "A sign on the fence of a red zoned property in Lower Styx Road. The sign reads, 'Browlee an (sic) Sutton R Clowns. Haven't got it right! $75 He rip off'. Many of the homeowners in this area believe that their homes should not be red zoned as the damage is much less than in other red zoned areas".

Images, UC QuakeStudies

A proposed design by John Raven for a new cathedral, tied to a cordon fence. Clarendon Tower can be seen in the background. The photographer comments, "Someone is asking for designs for a new Christchurch Cathedral after it was announced that the old historical building will not be repaired, to be put on the fences through which people can see the de-construction of the old one. This design looks a great one to me".

Videos, UC QuakeStudies

A video of a press conference with Canterbury Earthquake Recovery Minister Gerry Brownlee. Brownlee announced that cabinet has agreed to redevelop the hospital sites throughout Canterbury. This will include the building of additional operating theatres, the replacement of around 5000 beds, the expansion of the intensive care unit and emergency department, and the building of a new hospital for older persons in Burwood.

Images, UC QuakeStudies

A digitally manipulated photograph of a letterbox lying on the ground in front of a red-stickered house. The photographer comments, "An abandoned red stickered house just outside the four avenues that surround Christchurch CBD. The letterbox came down when the wall it was attached to collapsed. The occupants would have had strict instructions to stay out as the property is too dangerous to enter in case there is another earthquake or big aftershock".

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

A digitally manipulated image of Michael Parekowhai's scuplture 'On First Looking into Chapman's Homer' on Madras Street. The photographer comments, "One of the two bulls on pianos by Michael Parekowhai called 'On First Looking into Chapman's Homer'. They have been placed on the site of a building that was demolished after earthquake damage.

Images, UC QuakeStudies

A digitally manipulated image of a high-reach excavator demolishing a building. The photographer comments, "After the earthquakes in Christchurch, New Zealand the demolition of most of the City Centre began. After two years the government thought that the progress was far too slow, so began the start of the automatic demolition. Luckily when the solar powered demolition machines started to cause indiscriminate death and destruction they were isolated to the South Island and unable to cross the seas".

Images, UC QuakeStudies

The badly twisted Medway Street footbridge. The photographer comments, "The September 4th 2010 earthquake in Christchurch was so violent that the banks of the Avon River moved towards each other. This footbridge being metal had to twist sideways to release the pressure of being pushed from both river banks. It looked like it had been wrung out like a wet towel".

Articles, UC QuakeStudies

A photograph captioned, "We get the young fellas to come in and do the upkeep on the government houses that have been sold. They cut down all the long grass and just tidy up all the fire risk sections. This one's easier cos the house is gone. If you keep it tidy it looks tidy from the road. There's people living here, and there's nothing worse than looking over your house and seeing grass this high".

Articles, UC QuakeStudies

Caption reads: "I lived in London all through the Blitz, you get used to these things. Living here after the earthquakes didn’t bother me. I had a small battery operated radio and the neighbour lent me her generator. Initially I used it to run the fridge but after a while I couldn’t get it started. I don’t want to move, to be quite honest. There’s nothing that will be able to replace the life I built here."

Images, eqnz.chch.2010

North Hagley Park, Christchurch, New Zealand. Tens of thousands turned out today to mark the one year anniversary of the devastating earthquake that struck the city at 12.51pm on 22 February, 2011. 185 people lost their lives. file.stuff.co.nz/stuff/12-51/ Took 4 pa...

Research papers, University of Canterbury Library

On Tuesday 22 February 2011, a 6.3 magnitude earthquake struck Christchurch, New Zealand’s second largest city. The ‘earthquake’ was in fact an aftershock to an earlier 7.1 magnitude earthquake that had occurred on Saturday 4 September 2010. There were a number of key differences between the two events that meant they had dramatically different results for Christchurch and its inhabitants. The 22 February 2011 event resulted in one of New Zealand’s worst natural disasters on record, with 185 fatalities occurring and hundreds more being injured. In addition, a large number of buildings either collapsed or were damaged to the point where they needed to be totally demolished. Since the initial earthquake in September 2010, a large amount of building-related research has been initiated in New Zealand to investigate the impact of the series of seismic events – the major focus of these research projects has been on seismic, structural and geotechnical engineering matters. One project, however, conducted jointly by the University of Canterbury, the Fire Protection Association of New Zealand and BRANZ, has focused on the performance of fire protection systems in the earthquakes and the effectiveness of the systems in the event of post-earthquake fires occurring. Fortunately, very few fires actually broke out following the series of earthquake events in Christchurch, but fire after earthquakes still has significant implications for the built environment in New Zealand, and the collaborative research has provided some invaluable insight into the potential threat posed by post-earthquake fires in buildings. As well as summarising the damage caused to fire protection systems, this paper discusses the flow-on effect for designing structures to withstand post-earthquake fires. One of the underlying issues that will be explored is the existing regulatory framework in New Zealand whereby structural earthquake design and structural design for fire are treated as discrete design scenarios.

Research papers, University of Canterbury Library

The Mw 7.1 Darfield earthquake generated a ~30 km long surface rupture on the Greendale Fault and significant surface deformation related to related blind faults on a previously unrecognized fault system beneath the Canterbury Plains. This earthquake provided the opportunity for research into the patterns and mechanisms of co-seismic and post-seismic crustal deformation. In this thesis I use multiple across-fault EDM surveys, logic trees, surface investigations and deformation feature mapping, seismic reflection surveying, and survey mark (cadastral) re-occupation using GPS to quantify surface displacements at a variety of temporal and spatial scales. My field mapping investigations identified shaking and crustal displacement-induced surface deformation features south and southwest of Christchurch and in the vicinity of the projected surface traces of the Hororata Blind and Charing Cross Faults. The data are consistent with the high peak ground accelerations and broad surface warping due to underlying reverse faulting on the Hororata Blind Fault and Charing Cross Fault. I measured varying amounts of post-seismic displacement at four of five locations that crossed the Greendale Fault. None of the data showed evidence for localized dextral creep on the Greendale Fault surface trace, consistent with other studies showing only minimal regional post-seismic deformation. Instead, the post-seismic deformation field suggests an apparent westward translation of northern parts of the across-fault surveys relative to the southern parts of the surveys that I attribute to post-mainshock creep on blind thrusts and/or other unidentified structures. The seismic surveys identified a deformation zone in the gravels that we attribute to the Hororata Blind Fault but the Charing Cross fault was not able to be identified on the survey. Cadastral re-surveys indicate a deformation field consistent with previously published geodetic data. We use this deformation with regional strain rates to estimate earthquake recurrence intervals of ~7000 to > 14,000 yrs on the Hororata Blind and Charing Cross Faults.

Videos, UC QuakeStudies

A video about the Christchurch City Council housing complex on Conference Street in the Christchurch central city. The housing complex was unoccupied after the 22 February 2011 earthquake despite the housing shortage. Christchurch City Council said that the vacant units could not be lived in because of structural damage or damage to services. However, the building has been checked by structural engineers and many of the rooms have been deemed safe to occupy.