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Images for Post Earthquake; more images...

Research papers, University of Canterbury Library

Recent advances in timber design at the University of Canterbury have led to new structural systems that are appropriate for a wide range of building types, including multi-storey commercial office structures. These buildings are competitive with more traditional construction materials in terms of cost, sustainability and structural performance. This paper provides seismic design recommendations and analytical modelling approaches, appropriate for the seismic design of post-tensioned coupled timber wall systems. The models are based on existing seismic design theory for precast post-tensioned concrete, modified to more accurately account for elastic deformation of the timber wall systems and the influence of the floor system. Experimental test data from a two storey post-tensioned timber building, designed, constructed and tested at the University of Canterbury is used to validate the analytical models.

Images, Alexander Turnbull Library

In eight frames a man searches for a house in Christchurch and a real estate agent tries to sell him one. In each case the estate agent tries to emphasise the positives but the buyer sees the negatives brought about by the earthquakes. In the end the buyer settles for a caravan. Context - The problems of buying and selling houses in post-earthquake Christchurch. 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.

Research papers, The University of Auckland Library

The M7.1 Darfield earthquake shook the town of Christchurch (New Zealand) in the early morning on Saturday 4th September 2010 and caused damage to a number of heritage unreinforced masonry buildings. No fatalities were reported directly linked to the earthquake, but the damage to important heritage buildings was the most extensive to have occurred since the 1931 Hawke‟s Bay earthquake. In general, the nature of damage was consistent with observations previously made on the seismic performance of unreinforced masonry buildings in large earthquakes, with aspects such as toppled chimneys and parapets, failure of gables and poorly secured face-loaded walls, and in-plane damage to masonry frames all being extensively documented. This report on the performance of the unreinforced masonry buildings in the 2010 Darfield earthquake provides details on typical building characteristics, a review of damage statistics obtained by interrogating the building assessment database that was compiled in association with post-earthquake building inspections, and a review of the characteristic failure modes that were observed.

Audio, Radio New Zealand

Canterbury novelist Joanna Orwin has a new, futurist story of a New Zealand changed by cataclysmic volcanoes and tsunami, Sacrifice. And we hear about some of the stories in a post-earthquake Christchurch anthology, Tales for Canterbury.

Images, UC QuakeStudies

A photograph of people at a school which was used as a Civil Defence Report Centre after the 22 February 2011 earthquake. Cordon tape has been slung from two picnic tables and from the posts of the veranda behind.

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 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).

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, 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).

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).