Search

found 33817 results

Images for 2012; more images...

Research papers, University of Canterbury Library

The seismic response of unreinforced masonry (URM) buildings, in both their as-built or retrofitted configuration, is strongly dependent on the characteristics of wooden floors and, in particular, on their in-plane stiffness and on the quality of wall-to-floor connections. As part of the development of alternative performance-based retrofit strategies for URM buildings, experimental research has been carried out by the authors at the University of Canterbury, in order to distinguish the different elements contributing to the whole diaphragm's stiffness. The results have been compared to the ones predicted through the use of international guidelines in order to highlight shortcomings and qualities and to propose a simplified formulation for the evaluation of the stiffness properties.

Research papers, University of Canterbury Library

The University of Canterbury CEISMIC Canterbury Earthquake Digital Archive draws on the example of the Centre for History and New Media’s (CHNM) September 11 Archive, which was used to collect digital artefacts after the bombing of the World Trade Centre buildings in 2001, but has gone significantly further than this project in its development as a federated digital archive. The new University of Canterbury Digital Humanities Programme – initiated to build the archive – has gathered together a Consortium of major national organizations to contribute content to a federated archive based on principles of openness and collaboration derived directly from the international digital humanities community.

Images, Alexander Turnbull Library

Inside the Christchurch City Council building someone wonders what that noise is. Outside a gigantic wave of 'public discontent' rushes towards them. Context: Relates to anger and a protest of 4000 people at what they see as poor performance by the City Council in dealing with earthquake issues. The final straw was the Council's decision on the advice of its consultants to award the Council Chief Executive Tony Marryatt a $68,000 14% pay rise mid December 2011. Quantity: 1 digital cartoon(s).

Images, UC QuakeStudies

The dome of the Isaac Theatre Royal covered in sheeting and suspended in the backstage area. In the foreground, a small digger sits on the bed of a truck, and a crane is visible to the left. The photographer comments, "This is the 'dome' of the Isaac Theatre Royal's heritage stage. The front section of the theatre has stayed and so has the back, but the middle has been completely demolished. The best way to hide a secret is in plain sight. Could this really be an ancient UFO stored secretly in the old theatre for decades and now exposed by the earthquake? Is the waiting crane and transporter ready to whip it away to another secret location in the dead of night?".

Images, UC QuakeStudies

A protest sign painted on a fence shows a bulldozer labelled "Govt." driven by a woman (presumably representing Education Minister Hekia Parata) running over a sheep labelled "Chch schools", next to the words "Every time you close a school you have to build a jail - Mark Twain." The photographer comments, "Due to the earthquakes in Christchurch and parents leaving the area to give their children a quieter and more education friendly life a lot of the local schools especially in the East of Christchurch are to be closed or amalgamated. This was a decision by the government without consultation with any other authorities. Mark Twain actually said 'Every time you stop a school, you will have to build a jail'".

Articles, UC QuakeStudies

A photograph captioned, "I miss living here, right by the river. I'd been there for quite a long time, 12 years or so. I realize now I took it for granted a bit. I used to get a bit bored with having a big old house that was cold, difficult to clean, and perhaps hard to keep warm. But now, when I go back there, I miss living in a big house by the river with an open fire and a big lounge and everything. I had the park there on the other side of the river. And there was a little bridge down there where you could walk over to it. There was actually a circuit you could do, up to the New Brighton Bridge and back. Yeah, it was beautiful".

Images, UC QuakeStudies

A digitally manipulated image of the Gap Filler Monopoly board square on Manchester Street. The photographer comments, "On the site of a demolished earthquake damaged building in Christchurch, New Zealand is a Monopoly game square for giants. The Gap Filler Project makes the bare land where once a building once stood into something both interesting and unique and this time they created a massive Monopoly board square. In the game of Monopoly you move your player with a dog, shoe or maybe the hat, but as the most common thing in the City are diggers they have the placed one on the square. There are also two houses on Manchester Street, which is priced at $240".

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, "Cranmer Courts in Christchurch, New Zealand was very badly damaged in the earthquakes that have rocked the City for the past two years. Mike Hewson thought he would try to bring life back into the buildings by putting photographs into the spaces where the doors and windows were. There was a month or so when no one seemed to know or admit who had put the pictures up, but it was done officially. It seems that though very badly damaged the buildings may get restored".

Images, eqnz.chch.2010

The small wharf area of the now gone Pleasant Point Yacht Club has already been taken over by the Pied Shags (cormorants). It is under water now except for low tide. Note the dead pine tree in background. Many have died because of the salt water their roots are in.

Images, eqnz.chch.2010

A month after the 1st anniversary of the deadly Christchurch earthquake (22/02/11) a road cone lies on New Brighton Road, alongside the Avon River. Part of the earthquake 1st anniversary remembrance was for people to place flowers in road cones (and there are hundreds of thousands in the city). Many had flowers in them, as this one did. Photo ...

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.

Research papers, The University of Auckland Library

During many years the analysis of some geophysical results of Charles Darwin was being carried out in Department. Darwin has connected almost 200 years ago results of catastrophic earthquakes with vertical movement of a surface of the Earth. Usually this movement less horizontal movement and its influence on destruction of cities is not considered. Earthquake hazard assessment studies were focused usually on the horizontal ground motion. Effects of the strong vertical motion were not, practically, discussed. The margins of safety against gravity-induced static vertical forces in constructed buildings usually provide adequate resistance to dynamic forces induced by the vertical acceleration during an earthquake. However, the earthquake in Christchurch is an example of the vertical seismic shock . The earthquake magnitude was rather small - nearby 6.3. However, the result was catastrophic. The same took place in 1835. It allowed to Darwin to formulate a few great ideas. Charles Darwin has explained qualitatively results of an interaction of huge seismic waves with volcanoes and the nature of volcanism and seismicity of our planet. These important data of Charles Darwin became very actual recently. It is possible to tell also the same about tsunami and extreme ocean waves described by Charles Darwin. Therefore this data were analyzed using modern mechanics, mathematics and physics in Department. In particular, the theory of catastrophic waves was developed based on Darwin's data. The theory tried to explain occurrence, evolution and distribution the catastrophic waves in various natural systems, since atoms, oceans, surfaces of the Earth and up to the very early Universe. Some results of the research were published in prestigious magazines. Later they were presented in two books devoted to Charles Darwin's anniversary (2009). Last from them was published in Russian (2011). We give here key ideas of this research which is a part of interdisciplinary researches of Department. Some ideas are discussed. Not less important purpose is very short historical review of some researches of Darwin. In particular, we underline Darwin' priority in the formulation of the bases of Dynamics Earth.

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.

Research papers, University of Canterbury Library

This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.

Research papers, University of Canterbury Library

The paper discusses modelling of cyclic stress-strain behaviour of soil, in particular a simple model that can produce a desired stiffness and hysteretic damping for a given strain level as observed in laboratory testing is formulated. The unloading-reloading relationship is developed for total stress seismic site response analysis with appropriate damping at large strain. The constitutive model employs a hyperbolic equation as the backbone curve, and uses a modification of the extended Masing unloading-reloading relationship leading to correct measured modulus reduction and damping curves simultaneously. A quasi-static cyclic loading of increasing amplitude is used to demonstrate the model’s performance and its capability to allow improved modelling of the magnitude of energy dissipation based on an experimental program on native sandy soils from Christchurch, New Zealand.

Research papers, University of Canterbury Library

This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.

Images, eqnz.chch.2010

20120321_2397_1D3-47 Beachcomber Dairy Corner of New Brighton Road and Rawson Street, New Brighton. This diary is inside the suburban red zone and will probably be demolished some time in the future. See how the earthquakes have moved the footpath - the post and phone box used to stand straight! This is one of the Teleccom Wi-Fi hotspot boo...

Research papers, Lincoln University

There is strong consensus in the civil defence and emergency management literature that public participation is essential for a 'good' recovery. However, there is a paucity of research detailing how this community-led planning should be carried out in the real world. There are few processes or timelines for communities to follow when wanting to plan for themselves, nor is there a great deal of advice for communities who want to plan for their own recovery. In short, despite this consensus that community involvement is desireable, there is very little information available as to the nature of this involvement or how communities might facilitate this. It is simply assumed that communities are willing and able to participate in the recovery process and that recovery authorities will welcome, encourage, and enable this participation. This is not always the case, and the result is that community groups can be left feeling lost and ineffective when trying to plan for their own recovery. In attempting to address this gap, my study contributes to a better understanding of community involvement in recovery planning, based on research with on particular a community group (SPRIG), who has undertaken their own form of community-led planning in a post-disaster environment. Through group observations and in-depth interviews with members of SPRIG, I was able to identify various roles for such groups in the post-disaster recovery process. My research also contributes to an enhanced understanding of the process a community group might follow to implement their own form of post-disaster recovery planning, with the main point being that any planning should be done side by side with local authorities. Finally, I discovered that a community group will face organisational, community and institutional challenges when trying to plan for their area; however, despite these challenges, opportunities exist, such as the chance to build a better future.

Research papers, University of Canterbury Library

The 22 February 2011, Mw6.2 Christchurch earthquake is the most costly earthquake to affect New Zealand, causing an estimated 181 fatalities and severely damaging thousands of residential and commercial buildings. This paper presents a summary of some of the observations made by the NSF-sponsored GEER Team regarding the geotechnical/geologic aspects of this earthquake. The Team focused on documenting the occurrence and severity of liquefaction and lateral spreading, performance of building and bridge foundations, buried pipelines and levees, and significant rockfalls and landslides. Liquefaction was pervasive and caused extensive damage to residential properties, water and wastewater networks, high-rise buildings, and bridges. Entire neighborhoods subsided, resulting in flooding that caused further damage. Additionally, liquefaction and lateral spreading resulted in damage to bridges and to stretches of levees along the Waimakariri and Kaiapoi Rivers. Rockfalls and landslides in the Port Hills damaged several homes and caused several fatalities.

Research papers, University of Canterbury Library

The devastating magnitude M6.3 earthquake, that struck the city of Christchurch at 12:51pm on Tuesday 22 February 2011, caused widespread damage to the lifeline systems. Following the event, the Natural Hazard Research Platform (NHRP) of New Zealand funded a short-term project “Recovery of Lifelines” aiming to: 1) coordinate the provision of information to meet lifeline short-term needs; and to 2) facilitate the accessibility to lifelines of best practice engineering details, along with hazards and vulnerability information already available from the local and international scientific community. This paper aims to briefly summarise the management of the recovery process for the most affected lifelines systems, including the electric system, the road, gas, and the water and wastewater networks. Further than this, the paper intends to discuss successes and issues encountered by the “Recovery of Lifelines” NHRP project in supporting lifelines utilities.

Research papers, University of Canterbury Library

The 4 September 2010 Darfield and 22 February 2011 Christchurch earthquakes caused significant damage to Christchurch and surrounding suburbs as a result of the widespread liquefaction and lateral spreading that occurred. Ground surveying-based field investigations were conducted following these two events in order to measure permanent ground displacements in areas significantly affected by lateral spreading. Data was analysed with respect to the distribution of lateral spreading vs. distance from the waterway, and the failure patterns observed. Two types of failure distribution patterns were observed, a typical distributed pattern and an atypical block failure. Differences in lateral spreading measurements along adjacent banks of the Avon River in the area of Dallington were also examined. The spreading patterns between the adjacent banks varied with the respective river geometry and/or geotechnical conditions at the banks.

Research papers, University of Canterbury Library

High-Force-to-Volume lead dampers (HF2V) have been recently developed through an experimental research program at University of Canterbury – New Zealand. Testing of the device and applications on beam column joints have demonstrated stable hysteretic behaviour with almost no damage. This paper reports testing of HF2V devices with straight, bulged and constricted shaft configurations subjected to velocities of 0.15 - 5.0mm/s. The effect of the shaft configuration on the hysteresis loop shape, design relationships and the effect of the velocity on the resistive force of the device are described. Results show that hysteresis loop shape of the device is almost square regardless of the shaft configuration, and that devices are characterized by noticeable velocity dependence in the range of 0.15-1.0mm/s.

Research papers, University of Canterbury Library

A preliminary case study assessing the seismic sustainability of two reinforced concrete structures, a frame structure and a wall structure, was conducted to determine which structural system is more seismically sustainable. The two structures were designed to the same standards and were assumed to be located in Christchurch, New Zealand. A component-based probabilistic seismic loss assessment, considering direct losses only, was conducted for two ground motion records, regarded to approximately represent a 1 in 500 year earthquake event and a 1 in 2500 year earthquake event, respectively. It is shown that the wall structure results in lower direct losses than the frame structure in the less severe ground motion scenario. However, in the more severe ground motion scenario, the frame structure results in lower direct losses. Hence, this study demonstrates that which structural system has the lower direct losses depends on the ground motion intensity level.

Research papers, University of Canterbury Library

This paper examines the consistency of seismicity and ground motion models, used for seismic hazard analysis in New Zealand, with the observations in the Canterbury earthquakes. An overview is first given of seismicity and ground motion modelling as inputs of probabilistic seismic hazard analysis, whose results form the basis for elastic response spectra in NZS1170.5:2004. The magnitude of earthquakes in the Canterbury earthquake sequence are adequately allowed for in the current NZ seismicity model, however the consideration of ‘background’ earthquakes as point sources at a minimum depth of 10km results in up to a 60% underestimation of the ground motions that such events produce. The ground motion model used in conventional NZ seismic hazard analysis is shown to provide biased predictions of response spectra (over-prediction near T=0.2s , and under-predictions at moderate-to-large vibration periods). Improved ground motion prediction can be achieved using more recent NZ-specific models.

Images, UC QuakeStudies

A poster advertising performers Maryrose Crook, Purple Pilgrims and Thje. The photographer comments, "Maryrose Crook, Purple Pilgrims, Thje. Saturday 26 Feb (2011). HSP 9PM $5. HSP stands for High Street Project. Here is the introduction for her concert 'Maryrose Crook's spectral voice and calenture tunes float through New Zealand giants, The Renderers' psychic country-punk and splatter rock, and emerge in her solo encounters with horripilated grace and filigree menace. Purple pilgrims' wraithish hymns evolve through a braided field of curled nautical drone and distant littoral roar, abstract thrums and change-rung celestial rustle'. She was supposed to perform on 26 February, but I am guessing the concert was cancelled due to the major earthquake in Christchurch on the 22nd. The horrendous quake made the venue at 84 Lichfield Street out of limits due to it being in the dangerous earthquake red zone. It looks like she next performed on the 17 May at the Loons in Lyttelton".

Images, eqnz.chch.2010

Demolition of the relatively new seven-storey Waters Edge Apartments in Ferrymead continues. CERES Environmental NZ are doing the job for CERA (Canterbury Earthquake Recovery Authority). Some will be pleased to see this block go as there was lot of resentment to it being built on the site of the old Ferrymead Tavern, Selected for Explore, #347...

Research papers, University of Canterbury Library

This participant-observation study explores the process of gathering and evaluating both financial and non-financial information and communication and transfer of that information within a medium-sized electrical service company in Christchurch, New Zealand. The previous literature has established the importance and the main characteristics of small and medium enterprises, mainly studying manufacturing companies. However, there has been little research done in New Zealand on the overall communication process and the financial and non-financial information usage in a small-medium enterprise. The Electrical Company has a flat structure which allows flexibility. The two owners understand the importance of financial management and use financial information extensively to ensure the business expenses are under control. The owners also gather and use non-financial information through talking to their accountant, their customers and people in the same industry and they keenly follow the news on the rebuilding of Christchurch after the recent earthquakes.