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Images, UC QuakeStudies

A photograph looking west down Cashel Street towards the intersection with Manchester. On the right is a severely damaged building. Rubble from the top storey has fallen onto the street. In the distance, the Grand Chancellor can be seen, with the slump in the left side noticeable.

Images, UC QuakeStudies

A photograph of the earthquake damage to a house in Christchurch. The front and side of the house has collapsed, the bricks and other rubble spilling onto the garden, exposing the rooms inside. Emergency tape has been draped across the front of the property as a cordon.

Images, UC QuakeStudies

Water and liquefaction flows into the Avon River in Richmond. The water level is very high, and the water is cloudy with silt. The photographer comments, "Water from Dudley Creek took a shortcut across the road into the Avon. It doesn't have much of a drop from the road to the river".

Images, UC QuakeStudies

Workers on the opposite side of the river stop for the River of Flowers memorial event. The photographer comments, "One year on, Riverside residents gather for a 2 minute silence and to cast flowers in the river. Riverside residents met at the Medway St bridge to commemorate the anniversary of the 22/2/11 quake".

Images, UC QuakeStudies

Workers on the opposite side of the river stop for the River of Flowers memorial event. The photographer comments, "One year on, Riverside residents gather for a 2 minute silence and to cast flowers in the river. Riverside residents met at the Medway St bridge to commemorate the anniversary of the 22/2/11 quake".

Research papers, University of Canterbury Library

This thesis is concerned with the effects of lateral confining reinforcement on the ductile behaviour of reinforced concrete columns. The contents of the chapters are summarized as follows. In Chapter one, the general problems in seismic design are discussed and earthquake design methods based on the ductile design approach are described. Japanese, New Zealand and United States design codes are compared. Finally, the scope of this research project is outlined. In Chapter two, after reviewing previous research on confined concrete, the factors which affect the effectiveness of lateral confinement are discussed. Especially the effects of the yield strength of transverse reinforcement, the compressive strength of plain concrete and the strain gradient in the column section due to bending are discussed based on tests which were conducted by the author et al at Kyoto University and Akashi Technological College, Japan. In the axial compression tests on spirally reinforced concrete cylinders (150 mm in diameter by 300 mm in height), the yield strength of transverse reinforcement and the compressive strength of plain concrete were varied from 161 MPa to 1352 MPa and from 17 MPa to 60 MPa, respectively, as experimental parameters. It is found that, when high strength spirals are used as confining reinforcement, the strength and ductility of the confined core concrete are remarkably enhanced but need to be estimated assuming several failure modes which could occur. These are based on the observations that concrete cylinders with high strength spirals suddenly failed at a concrete compressive strain of 2 to 3.5 % due to explosive crushing of the core concrete between the spiral bars or due to bearing failure of the core concrete immediately beneath the spiral bars, while the concrete cylinders with ordinary strength spirals failed in a gentle manner normally observed. In addition, eccentric loading tests were conducted on concrete columns with 200 mm square section confined by square spirals. It is found that the effectiveness of confining reinforcement is reduced by the presence of the strain gradient along the transverse section of column. In Chapter three, the effectiveness of transverse reinforcement with various types of anchorage details which simplify the fabrication of reinforcing cages are investigated. Eight reinforced concrete columns, with either 400 mm or 550 mm square cross sections, were tested subjected to axial compression loading and cyclic lateral loading which simulated a severe earthquake. The transverse reinforcement consisted of arrangements of square perimeter hoops with 135° end hooks, cross ties with 90° and 135° or 180° end hooks, and 'U' and 'J' shaped cross ties and perimeter hoops with tension splices. Conclusions are reached with regard to the effectiveness of the tested anchorage details in the plastic hinge regions of columns designed for earthquake resistance. In Chapter four, the effectiveness of interlocking spirals as transverse reinforcement is studied. Firstly, the general aspects and the related problems of interlocking spirals to provide adequate ductility in the potential plastic hinge region of columns are discussed, referring to the provisions in the New Zealand code,the CALTRANS (California Transportation Authority) code and other related codes. Secondly, based on those discussions, a design method to securely interlock the spirals is proposed. Thirdly, the effectiveness of interlocking spirals is assessed based on column tests conducted as part of this study. Three columns with interlocking spirals and, for comparison, one rectangular column with rectangular hoopsandcross ties, were tested under cyclic horizontal loading which simulated a severe earthquake. The sections of those columns were 400 mm by 600 mm. In Chapter five, analytical models to investigate the buckling behaviour of longitudinal reinforcement restrained by cross ties with 90° and 135° end hooks and by peripheral hoops are proposed. The analyzed results using the proposed models compare well with the experimental observations described in Chapter three. Using those proposed models, a method to check the effectiveness of cross ties with 90° and 135° end hooks is proposed for practical design purposes. In Chapter six, a theory for the prediction of the ultimate longitudinal compressive concrete strain at the stage of first hoop fracture referred to as the "Energy Balance Theory", which has been developed by Mander, Priestley and Park at University of Canterbury, is introduced. After discussing the problems in the "Energy Balance Theory", a modified theory for the prediction of the ultimate longitudinal compressive concrete strain at the stage of first hoop fracture is proposed. The predictions from the modified theory are found to compare well with previous experimental results.

Audio, Radio New Zealand

1. Hon PHIL GOFF to the Prime Minister: Has the tax switch which he promised would leave no-one worse off fully compensated all New Zealanders for the rise in the cost of living over the last year; if not, which groups are worse off? 2. Dr RUSSEL NORMAN to the Minister of Finance: Does he agree that due to inflation, no new spending in the upcoming Budget is the equivalent of a cut in real terms? 3. DAVID BENNETT to the Minister of Finance: What tax changes take effect on or around 1 April? 4. Hon DAVID CUNLIFFE to the Minister of Finance: Why did he announce on 17 March 2011 that the Government would carry all the costs of earthquake reconstruction on its balance sheet with no reduction in operating spending, when the Prime Minister said just three days later that new operating spending would be reduced to zero? 5. AARON GILMORE to the Minister of Education: What progress has been made re-opening schools and early childhood education centres in Christchurch following the 22 February earthquake? 6. CHARLES CHAUVEL to the Minister of Civil Defence: To date, how many buildings have been demolished in Canterbury without notifications to the building or business owners? 7. HONE HARAWIRA to the Attorney-General: Is he satisfied that he has the support required for the Marine and Coastal Area (Takutai Moana) Bill to pass into law? 8. DARIEN FENTON to the Minister of Labour: What impact, if any, will the Christchurch earthquake have on the Government's employment law changes due to be implemented on 1 April? 9. JONATHAN YOUNG to the Minister of Corrections: What progress has been made toward the implementation of the smoking ban in New Zealand prisons? 10. CLARE CURRAN to the Minister for Communications and Information Technology: By what date will the 75 percent of urban New Zealanders receive ultra-fast broadband under his current proposal? 11. METIRIA TUREI to the Prime Minister: Does he stand by his statement that the "Government will build the effectiveness of New Zealand's public transport networks" and "will be working closely with the Auckland Council as they develop their strategic vision for the City through the Auckland Spatial Plan"? 12. TODD McCLAY to the Minister for Social Development and Employment: What counselling support is available for Cantabrians impacted by the earthquake?

Audio, Radio New Zealand

DAVID SHEARER to the Prime Minister: Does he believe that Hon John Banks has behaved in a manner that “upholds, and is seen to uphold the highest ethical standards” as required by the Cabinet Manual? BARBARA STEWART to the Prime Minister: Did Mr Banks explain to the Prime Minister’s Chief of Staff that he would use “obfuscation” in his dealings with the media over the “anonymous” donations from Kim Dotcom? MAGGIE BARRY to the Minister of Finance: How does the Government intend to strengthen the Public Finance Act 1989 in the Budget this month? Hon DAVID PARKER to the Minister of Finance: In the most recent World Economic Outlook published by the IMF in April 2012, which of the 34 advanced economies listed is forecast to have a worse current account deficit (as a percentage of GDP) than New Zealand in 2013? METIRIA TUREI to the Prime Minister: Does he stand by all the answers he gave to Oral Question No 4 yesterday? KANWALJIT SINGH BAKSHI to the Minister for Economic Development: What action is the Government taking to improve co-ordination of the business growth agenda? Hon PHIL GOFF to the Minister of Foreign Affairs: What damage, if any, has been done to staff confidence and retention by the change proposals for his Ministry announced on 23 February 2012, and does he intend to announce on 10 May 2012 a reversal of many of the proposals? SIMON O'CONNOR to the Minister of Labour: What steps is the Government taking to improve workplace health and safety? GARETH HUGHES to the Minister of Conservation: Does her proposed extension of the Marine Mammal Sanctuary for Maui’s dolphins allow the use of set nets, drift nets, and trawl nets within the sanctuary? IAN McKELVIE to the Minister of Corrections: What reports has she received about trade training within prisons? Hon LIANNE DALZIEL to the Minister for Canterbury Earthquake Recovery: Has he required that all his Ministers involved in the Canterbury earthquake recovery read the briefing paper dated 10 May 2011 prepared by Chief Science Advisor, Professor Sir Peter Gluckman, into the psychosocial consequences of the Canterbury earthquakes; if not, why not? NIKKI KAYE to the Minister of Education: What evidence has she seen of excellent achievement in scholarship exams?  

Research papers, Lincoln University

Prognostic modelling provides an efficient means to analyse the coastal environment and provide effective knowledge for long term urban planning. This paper outlines how the use of SWAN and Xbeach numerical models within the ESRI ArcGIS interface can simulate geomorphological evolution through hydrodynamic forcing for the Greater Christchurch coastal environment. This research followed the data integration techniques of Silva and Taborda (2012) and utilises their beach morphological modelling tool (BeachMM tool). The statutory requirements outlined in the New Zealand Coastal Policy Statement 2010 were examined to determine whether these requirements are currently being complied with when applying the recent sea level rise predictions by the Intergovernmental Panel on Climate Change (2013), and it would appear that it does not meet those requirements. This is because coastal hazard risk has not been thoroughly quantified by the installation of the Canterbury Earthquake Recovery Authority (CERA) residential red zone. However, the Christchurch City Council’s (CCC) flood management area does provide an extent to which managed coastal retreat is a real option. This research assessed the effectiveness of the prognostic models, forecasted a coastline for 100 years from now, and simulated the physical effects of extreme events such as storm surge given these future predictions. The results of this research suggest that progradation will continue to occur along the Christchurch foreshore due to the net sediment flux retaining an onshore direction and the current hydrodynamic activity not being strong enough to move sediment offshore. However, inundation during periods of storm surge poses a risk to human habitation on low lying areas around the Avon-Heathcote Estuary and the Brooklands lagoon similar to the CCC’s flood management area. There are complex interactions at the Waimakariri River mouth with very high rates of accretion and erosion within a small spatial scale due to the river discharge. There is domination of the marine environment over the river system determined by the lack of generation of a distinct river delta, and river channel has not formed within the intertidal zone clearly. The Avon-Heathcote ebb tidal delta aggrades on the innner fan and erodes on the outer fan due to wave domination. The BeachMM tool facilitates the role of spatial and temporal analysis effectively and the efficiency of that performance is determined by the computational operating system.

Images, UC QuakeStudies

An aerial photograph of Cambridge Terrace with the cleared PGC site in the upper centre. The photograph was captioned by BeckerFraserPhotos, "The area inside the cordon that is north of the river which encompasses the PGC site and Kilmore Street. The expectation is that this area will soon be outside the cordon".

Images, UC QuakeStudies

Damage to Lyttelton following the 22 February 2011 earthquake. Ground Culinary Centre on the corner of London and Canterbury Streets. The wall on the top storey has crumbled into the street, covering the footpath in bricks. Large cracks can be seen above the door, coming out from the corners of the window.

Images, UC QuakeStudies

The west-side of the Arts Centre along Rolleston Avenue near the entrance to the Botanic Gardens. Wire fencing and road cones have been placed around the building as a cordon. To the left, a crane is parked next to the building. The spire has been removed and braced on the footpath to limit damage.

Images, UC QuakeStudies

A photograph of Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy, scratching his head as he looks at the damaged clock drive of the Townsend Telescope. The telescope was damaged during the 22 February 2011 earthquake, when the Observatory tower at the Christchurch Arts Centre collapsed. Kershaw has been given the task of restoring the telescope.

Images, UC QuakeStudies

A photograph of the middle section of the Townsend Telescope. The telescope is in the Observatory at the Christchurch Arts Centre. A plate on the side reads, "T Cook & Sons, 1864, York & London". This image was used by Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy, to identify the telescope's parts after the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph of the large-scale puppets titled The Scholar and The Wife of Bath. The puppets are in Cathedral Square. Lying on the left are heads and hands of The Friars. The puppets were part of the Canterbury Tales procession. Canterbury Tales was created by Free Theatre Christchurch, and was the main event of FESTA 2013.

Images, UC QuakeStudies

A photograph of the Stranges Building on the corner of High Street and Lichfield Street. In the background are the Mexican Café and Honey Pot Café buildings. The outer wall of the top storey of the Stranges Building has collapsed and the rubble has spilled onto the footpath below.

Images, UC QuakeStudies

A photograph of the house number spray-painted on the footpath in front of the Locke family's property at 392 Oxford Terrace. The photographer comments, "The numbers were spray-painted in front of all the properties in the Avon Loop in order to keep track of the property number after the mailboxes were lost or removed".

Images, UC QuakeStudies

The top of the water slides in the QEII swimming pool, exposed by its demolition. The slides themselves have been broken off, leaving only the entry points. The photographer comments, "After assessment of the damage caused by the numerous earthquakes in Christchurch, New Zealand they decided to demolish the QEII stadium and it's swimming pool".

Images, UC QuakeStudies

A photograph of looking west out a window of the PricewaterhouseCoopers Building on Armagh Street. To the left is the Victoria Apartments with a slight forward lean. Victoria Square is in the centre of the photograph and to the right is the Crowne Plaza Hotel. In the foreground is the Copthorne Hotel.

Images, UC QuakeStudies

A police officer talks to a cyclist at a cordon checkpoint near the Casino. An armoured vechicle is parked beside the cordon. The photographer comments, "The army are doing a fine job manning the cordon around the city centre. It must be pretty dull work and the weather isn't that flash at the moment. It's still surreal to see armed vehicles guarding entrances to the city though".

Images, UC QuakeStudies

A photograph of earthquake damage to the Cranmer Centre on the corner of Armagh and Montreal Streets. Large sections of the wall have collapsed, the bricks spilling onto the footpath below. Wire fencing has been placed around the building as a cordon. Scaffolding has been erected up the side of the building to the left.

Images, UC QuakeStudies

A photograph of the McKenzie & Willis building on Tuam Street. Small pieces of masonry have crumbled from the pillars between the windows and fallen onto the footpath below. The front door has also shattered and broken glass has spilled onto the footpath in front. The word "clear" has been spray-painted on the bottom-storey window to the left.

Images, UC QuakeStudies

A photograph of Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy, looking through the lens of the Townsend Telescope. The lens is the most crucial component of the telescope. It was found unscratched and unbroken in the rubble of the Observatory tower, after 22 February 2011 earthquake. This means that the telescope can be restored.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Christchurch Chinese Methodist Church on Papanui Road. The gable walls have crumbled, bricks spilling onto the ground. The tower has been removed and braced on the ground in front. Cordon fencing has been placed around the building. Parts of the fence have been decorated with hearts and the word 'love'.

Images, UC QuakeStudies

A photograph of the middle section of the Townsend Telescope. The telescope is in the Observatory at the Christchurch Arts Centre. A plate on the side reads, "T Cook & Sons, 1864, York & London". This image was used by Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy, to identify the telescope's parts after the 22 February 2011 earthquake.

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".

Articles, UC QuakeStudies

This thesis was completed by Abigail Thompson for her Master of Architecture (Professional) at the University of Auckland in 2012. It was initiated with the aim of the addressing the destruction of many Christchurch buildings following the earthquakes, and investigates the role of architecture in public memory and ways of reconnecting people with the city. Note that some images in the thesis have been obscured in order to avoid copyright infringement.