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Images for Post-earthquake; more images...

Images, UC QuakeStudies

Felled trees near the Park Terrace bridge in Hagley Park. A lamp post in the background is on a noticeable lean and a damaged shipping container can be seen to the left. The shipping container was damaged when the tree fell during the 22 February 2011 earthquake.

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "The interior of a house at 464 Avonside Drive which has cracks and other evidence of post earthquake life. Large containers of drinking water have been placed behind the armchairs for the next time power and water supplies are interrupted".

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, UC QuakeStudies

Post-graduate students who went on an exchange to Oxford after the February earthquakes talking to Vice-Chancellor Rod Carr at a function with Vice Chancellor Rod Car and Vice Chancellor of the University of Oxford Andrew Hamilton to sign a Memorandum of Understand between the two Universities.

Images, Alexander Turnbull Library

The cartoon shows the Minister for Earthquake Recovery, Gerry Brownlee, who wears a jacket with 'CERA' printed on it, reading from the 'Doomsday Book'. He reads 'The following suburbs and my hopes of a reputation as an effective minister, are now officially listed as munted...' Context - On 23rd June Prime Minister, John Key, officially announced which streets and suburbs in earthquake-ravaged Christchurch would be abandoned. For many residents, there has been too much delay and too little information regarding progress towards resolving questions about which land can or cannot be used for rebuilding for Gerry Brownlee's reputation to remain unsullied. Quantity: 1 digital cartoon(s).

Videos, UC QuakeStudies

A video capturing an aftershock from the Canterbury earthquake on 22 February 2011, 1:04pm. After the 6.3 magnitude earthquake at 12:51pm, Ben Post set up his camera on a tripod and left it running. The movement of the water in the fish tank during the quake suggests that the shaking is up and down. The camera also shows this effect; due to the lightweight material of the tripod, the camera is shaken about more than the surroundings.

Audio, Radio New Zealand

Post analysis of last night's All Black victory over the Wallabies and a look at the challenges ahead against Les Bleus; various looks at the Rena including mitigation of environmental impact and a 'please explain' summons to the lessees by the Transport Minister and; the Canterbury earthquake's Royal Commission hearings begin.

Images, Alexander Turnbull Library

The cartoon shows a rugby goalpost in a bad state of repair; it is held together with bandages and when a player kicks a ball that represents 'World Cup Games' towards the goalpost, it hits one of the side posts that flies a Christchurch flag, causing the post to break. Context - the decision that Christchurch will not be able to host any of the Rugby World Cup games because of the damage caused by the earthquakes of 4 September 2010 and 22 February 2011. Quantity: 1 digital cartoon(s).

Images, UC QuakeStudies

A view down Chancery Lane through cordon fencing. A sign reading "No Entry" is posted on the fence, and fallen leaves have accumulated around the fence and buildings. The photographer comments, "Chancery Lane in the Christchurch CBD red zone looks like it has had no one through at all since the February earthquake".

Research papers, University of Canterbury Library

Six months after the 4 September 2010 Mw 7.1 Darfield (Canterbury) earthquake, a Mw 6.2 Christchurch (Lyttelton) aftershock struck Christchurch on the 22 February 2011. This earthquake was centred approximately 10km south-east of the Christchurch CBD at a shallow depth of 5km, resulting in intense seismic shaking within the Christchurch central business district (CBD). Unlike the 4 Sept earthquake when limited-to-moderate damage was observed in engineered reinforced concrete (RC) buildings [35], in the 22 February event a high number of RC Buildings in the Christchurch CBD (16.2 % out of 833) were severely damaged. There were 182 fatalities, 135 of which were the unfortunate consequences of the complete collapse of two mid-rise RC buildings. This paper describes immediate observations of damage to RC buildings in the 22 February 2011 Christchurch earthquake. Some preliminary lessons are highlighted and discussed in light of the observed performance of the RC building stock. Damage statistics and typical damage patterns are presented for various configurations and lateral resisting systems. Data was collated predominantly from first-hand post-earthquake reconnaissance observations by the authors, complemented with detailed assessment of the structural drawings of critical buildings and the observed behaviour. Overall, the 22 February 2011 Mw 6.2 Christchurch earthquake was a particularly severe test for both modern seismically-designed and existing non-ductile RC buildings. The sequence of earthquakes since the 4 Sept 2010, particularly the 22 Feb event has confirmed old lessons and brought to life new critical ones, highlighting some urgent action required to remedy structural deficiencies in both existing and “modern” buildings. Given the major social and economic impact of the earthquakes to a country with strong seismic engineering tradition, no doubt some aspects of the seismic design will be improved based on the lessons from Christchurch. The bar needs to and can be raised, starting with a strong endorsement of new damage-resisting, whilst cost-efficient, technologies as well as the strict enforcement, including financial incentives, of active policies for the seismic retrofit of existing buildings at a national scale.

Images, Alexander Turnbull Library

The cartoon, which looks like a woodcut depicts a muscled workman wearing a black singlet; his arms are folded and the fingers of one hand are crossed. On his arms are tattoos of a helmet and pick, a '$' symbol, a petrol pump, and a high magnitude earthquake graph. Behind him are buildings, including the Christchurch Cathedral, damaged following the Christchurch earthquake of 22 February 2011. Below the cartoon are the words 'Apologies to Nigel Brown' - a black singlet is a recurring motif in the work of New Zealand artist Nigel Brown. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows a digger dredging through the rubble and digging up a red heart representing 'hope' (Tom Scott doesn't do colour so this is significant). A rescuer nearby yells 'Careful! It's still beating'. Context - on 22 February 2011 a 6.3 magnitude earthquake struck in Christchurch which has probably killed more than 200 people (at this point the number is still not known) and caused much more severe damage. There were many people trapped in collapsed buildings and it was apparent in only two or three days that in most cases they could not have survived but of course people still held out impossible hope. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows Christchurch mayor Bob Parker and his wife in bed. Bob Parker's wife says 'Bob darling, the chances of a news crew bursting in here at this time of night are virtually nil, so please take that bloody jacket off...' Context - Bob Parker, it is true, seems to be wearing the same trendy orange and black 'site manager's jacket for the very many photo opportunities afforded post earthquake of 22 February 2011. Quantity: 1 digital cartoon(s).

Research papers, University of Canterbury Library

An extensive research program is on-going at the University of Canterbury, New Zealand to develop new technologies to permit the construction of multi-storey timber buildings in earthquake prone areas. The system combines engineered timber beams, columns and walls with ductile moment resisting connections using post-tensioned tendons and eventually energy dissipaters. The extensive experimental testing on post-tensioned timber building systems has proved a remarkable lateral response of the proposed solutions. A wide number of post-tensioned timber subassemblies, including beam-column connections, single or coupled walls and column-foundation connections, have been analysed in static or quasi-static tests. This contribution presents the results of the first dynamic tests carried out with a shake-table. Model frame buildings (3-storey and 5-storey) on one-quarter scale were tested on the shake-table to quantify the response of post-tensioned timber frames during real-time earthquake loading. Equivalent viscous damping values were computed for post-tensioned timber frames in order to properly predict their response using numerical models. The dynamic tests were then complemented with quasi-static push and pull tests performed to a 3-storey post-tensioned timber frame. Numerical models were included to compare empirical estimations versus dynamic and quasi-static experimental results. Different techniques to model the dynamic behaviour of post-tensioned timber frames were explored. A sensitivity analysis of alternative damping models and an examination of the influence of designer choices for the post-tensioning force and utilization of column armouring were made. The design procedure for post-tensioned timber frames was summarized and it was applied to two examples. Inter-storey drift, base shear and overturning moments were compared between numerical modelling and predicted/targeted design values.