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Audio, Radio New Zealand

Tomorrow will mark four years since a huge 7.8 magnitude earthquake rocked North Canterbury. As well as severely damaging homes and roads, it left some hill country farms in the area with up to 40 percent of their land unusable. Four years on, sheep and beef farmers are finding new ways to work. Rural reporter, Maja Burry and cameraman Nate McKinnon have the story.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Linemen cutting power to a damaged line outside an old historic building on the corner of Montreal Street and Moorhouse Avenue which will have work done to it to try and save as much as they can".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch was rocked by a large aftershock shortly after 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett gets a lift with volunteer Bernie Shaperio in his Jeep".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly before 8am this morning. Linemen cutting power to a damaged line outside an old historic building on the corner of Montreal Street and Moorhouse Avenue which will have work done to it to try and save as much as they can".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Linemen cutting power to a damaged line outside an old historic building on the corner of Montreal Street and Moorhouse Avenue which will have work done to it to try and save as much as they can".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Linemen cutting power to a damaged line outside an old historic building on the corner of Montreal Street and Moorhouse Avenue which will have work done to it to try and save as much as they can".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett chats to volunteers (L-R) Lauren Baker, Kirsten Glasson, Shannon Ronald, Laura Jackson and Sophie Cornish".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett chats to volunteers (L-R) Lauren Baker, Kirsten Glasson, Shannon Ronald, Laura Jackson and Sophie Cornish".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly before 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett chats to volunteers (L-R) Ashley Cornish, Laura Jackson, Shannon Ronald, Kirsten Glasson and Lauren Baker".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly before 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett gets a lift with volunteer Bernie Shapiro in his Jeep, on Broomfield Terrace, Burwood".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett gets a lift with volunteer Bernie Shaperio in his Jeep".

Images, eqnz.chch.2010

Nearly 80 40 foot containers (most two high) protect Wakefield Avenue in Sumner from further rock falls. Behind these (to the left) are houses, church, bowling club, RSA (Returned Servicemens Association) and other community buildings that have been isolated now for nearly two years now. On the right upper third boundary (just behind two stand a...

Research papers, University of Canterbury Library

To this extent, modern buildings generally demonstrated good resistance to collapse during the recent earthquakes in New Zealand. However, damage to non-structural elements (NSE) has been persistent during these events. NSEs include secondary systems or components attached to the floors, roofs, and walls of a building or industrial facility that are not explicitly designed to participate in the main vertical or lateral load-bearing mechanism of the structure. They play a major role in the operational and functional aspects of buildings and contribute a major portion of the building’s overall cost. Therefore, they are expected to accommodate the effects of seismic actions such as drifts and accelerations. Typical examples of NSEs include internal non-loadbearing partitions, suspended ceilings, sprinkler piping systems, architectural claddings, building contents, mechanical/electrical equipment, and furnishings. The main focus of this thesis is the drift sensitive NSEs: precast concrete cladding panels and internal partition walls. Even though most precast concrete cladding panels performed well from a life-safety point of view during recent earthquakes in NZ, some collapsed panels posed a significant threat to life safety. It is, therefore, important that the design and detailing of the panel-to-structure connections ensure that their strength and displacement capacity are adequate to meet the corresponding seismic demands, at least during design level earthquakes. In contrast, the partition wall is likely to get damaged and lose serviceability at a low inter-story drift unless designed to accommodate the relative deformations between them and the structure. Partition walls suffered wide-ranging damage such as screw failures, diagonal cracking, detachments to the gypsum linings, and anchorage failures during the 2011 Canterbury Earthquake Sequence in NZ. Therefore, the thesis is divided into two parts. Part I of the thesis focuses on developing novel low-damage precast concrete cladding panel connections, i.e. “rocking” connection details comprising vertically slotted steel embeds and weld plates. The low-damage seismic performance of novel “rocking” connection details is verified through experimental tests comprising uni-directional, bi-directional, and multi-storey scaled quasi-static cyclic tests. Comparison with the seismic performance of traditional panel connections reported in the literature demonstrated the system’s significantly improved seismic resilience. Furthermore, the finite element models of panel connections and sealants are developed in ABAQUS. The force-drift responses of the “rocking” panel system modelled in SAP2000 is compared with the experimental results to evaluate their accuracy and validity. Part II of the thesis focuses on a) understanding the seismic performance of traditional rigid timber-framed partition wall, b) development and verification of low-damage connections (i.e. “rocking” connection details comprising of dual-slot tracks), and c) seismic evaluation of partition walls with a novel “bracketed and slotted” connections (comprising of innovative fastener and plastic bracket named Flexibracket) under uni-directional and bidirectional quasi-static cyclic loadings. Moreover, parametric investigation of the partition walls was conducted through several experimental tests to understand better the pros and cons of the rocking connection details. The experimental results have confirmed that the implementation of the proposed low damage solutions of precast cladding panels and internal partition walls can significantly reduce their damage in a building.

Images, eqnz.chch.2010

There are occasional sewerage spills into the Avon River while all the sewer and road repairs are carried out. This rock wall was level and well above high tide level prior to the eathquakes. All the houses that can been seen here (except for those on the distant Port Hills) are in the suburban "red zone" and are still to be demolished.

Images, eqnz.chch.2010

Low tide on the Avon River at New Brighton/Bexley. Note the original bank and the rock wall slipage on right. The white additions were added in March and April 2011 to protect the properties behind from flooding. Ultimately this area was "red zoned" with all houses removed or to be removed and the ground left till a rehabilitation method can ...

Images, eqnz.chch.2010

This statue of the Virgin Mary stood in the south tower of The Cathedral of the Blessed Sacrament and had been facing inside from when she was placed there and through the September 2010 earthquake. That changed on February 22 2010 at 12.51pm when Christchurch was rocked by a 6.3 magnitude earthquake. During the violent shaking motion Mary was t...

Images, eqnz.chch.2010

Today (04/09/14) marks the fourth anniversary since the first earthquake rocked the city and greater Christchurch area. That first quake was magnitude 7.1, and luckily there was only one fatality (possible a heart attack). Since then we have had over 14,000 quakes, most very small in magnitude, but well over 500 of magnitude 4 or greater. 5...

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Christchurch Earthquake. Christchurch was rocked by a large aftershock shortly after 8am this morning. Social Development Minister Paula Bennett has donated money to the thousand of students who have filled the suburbs lending a hand to residents to clean up their properties. Bennett chats to volunteers (L-R) Sophie Cornish, Ashley Cornish, Laura Jackson, Shannon Ronald, Kirsten Glasson and Lauren Baker".

Images, eqnz.chch.2010

Prior to the earthquakes (mainly the February 22 2011 event) this park bench was at track level. Shortly after the February quake someone in the council did the sums and realised that the area near the Avon River had dropped between a metre and 1.4m (about 4 foot), so a rush job by contractors shifted in many tonnes of rock and gravel to raise a...

Audio, Radio New Zealand

Topics - the latest twist in the Kim Dotcom saga is that the police have announced they're investigating the Government Communications Security Bureau's illegal surveillance of the internet mogul. New research has shown that membership of all mainstream Christian denominations has fallen to historic lows - except for Catholicism. New research has uncovered the role underground rock structures played in stopping the September 2010 Christchurch earthquake from linking up with the Port Hills faultline and causing greater damage to Christchurch.

Audio, UC QuakeStudies

An audio documentary created by Kris Vavasour about the multitude of challenge the musicians, performers and venue owners in Lyttelton face in the aftermath of the Canterbury earthquakes. All songs are from the 'Harbour Union' album (2011), in alphabetical order: 'Even Keel' (Lindon Puffin); 'Ghost of this Town' (Marlon Williams); 'How Lucky You Are' (Delaney Davidson & Marlon Williams); 'Human Enough' (Lindon Puffin); 'It's So Good' (Delaney Davidson); 'Little Mountain Town' (Marlon Williams); 'Rocking Bell' (Adam McGrath); 'The Waterside' (Adam McGrath).

Research papers, University of Canterbury Library

Following a major earthquake event, essential public amenities such as medical facilities and transport networks need to remain functional - not only to fulfil their ongoing role in serving the community but also to cope with the added and immediate demand of a population affected by a natural disaster. Furthermore, the economic implications of wide spread damage to housing and commercial facilities should not be discounted. A shift in design approach is required that is consistent with current trends towards performance based building design. The present aim is to achieve seismic energy dissipation during the earthquake event, without the aftermath of damage to structural elements, whilst maintaining design economies. Structures permitted to rock on their foundations and provide recoverable rotations at the beam-column interfaces offer significant advantages over those using conventional ductile detailing. A jointed construction philosophy can be applied whereby structural elements are connected with unbonded prestressing tendons. Supplemental damping is provided by replaceable flexural steel components designed to deform inelastically. For this research a multi-storey test building of one quarter scale has been constructed and tested on an earthquake simulator at the University of Canterbury. A computer model has been developed and a set ofpreliminary design procedures proposed.

Videos, UC QuakeStudies

A video of a press conference with Gerry Brownlee announcing a CERA review which will change the zoning of 270 Port Hills properties. Brownlee announces that 247 properties will change from green zoned to red zoned and 33 properties will change from red zoned to green zoned. The properties that have been rezoned red have an unacceptable level of life risk from cliff collapse and the potential of debris inundation.

Images, Alexander Turnbull Library

The cartoon shows a man, a woman and a dog all yelling with fright. Refers to the series of severe aftershocks that again rocked Christchurch on January 2nd. The largest was a magnitude-5.5 shake shortly before 6am. All were centred at sea off New Brighton. Mayor Bob Parker said that fear that larger quakes could be triggered had been raised by residents, but the tsunami threat was "highly unlikely". Quantity: 1 digital cartoon(s).

Videos, UC QuakeStudies

A video of an interview with Laurence Mote about the wall of containers in Sumner. Shipping containers line the south side of Main Road in Sumner, protecting road users from potential rock fall from the cliffs above. Mote bikes past the containers every day on his way to work. He talks about the risks facing cyclists along Main Road and in greater Christchurch, including pot holes and narrow roads. He advises cyclists to wear bright clothing and lights, and for cars to slow down and give cyclists room.

Images, Alexander Turnbull Library

A huge fist representing 'quakes', that is wearing a boxing glove, thumps a man who represents 'CHCH' (Christchurch) 'WHUMP! WHUMP! WHUMP!' The man is knocked out. Context - Magnitude 6.0 and 5.5 earthquakes rocked Christchurch again at 1pm and 2.20pm on 13th June 2011. These quakes follow the first earthquake on September 4th 2010 and the second on February 22nd 2011. (www.stuff.co.nz, 13 June 2011) Quantity: 1 digital cartoon(s).

Research papers, University of Canterbury Library

It is fast becoming common practice for civil engineering infrastructure and building structures to be designed to achieve a set of performance objectives. To do so, consideration is now being given to systems capable of sustaining minimal damage after an earthquake while still being cost competitive. This has led to the development of high performance seismic resisting systems, followed by advances in design methodologies. The paper presents the experimental response of four pre-cast, post-tensioned rocking walls with high-performing dissipating solutions tested on the shake-table at the University of Canterbury. The wall systems were designed as a retrofit solution for an existing frame building however, can also be used for the design of new, high-performance structures. The use of externally mounted dampers allowed numerous dissipation schemes to be explored including mild-steel dampers (hysteretic dampers), viscous dampers, a combination of both or no dampers. The advantages of both velocity and displacement dependant dissipation was investigated for protection against strong ground motions with differing rupture characteristics i.e. far-field and near-field events. The experimental results are used to verify a proposed design procedure for post-tensioned rocking systems with supplementary hysteretic and viscous dissipation. The predicted response compared well with the measured shake-table response.

Audio, Radio New Zealand

After years of disruption caused by the Christchurch earthquakes, two schools have finally started moving into their new state of the art facilities. Avonside Girls' High School and Shirley Boys' High School have begun moving students into their new shared but separate campus on the grounds of the old QEII Park in north New Brighton. Some of the features include, a moveable gym, bike stands with spanners and air pumps, and a rock climbing wall. It will be the first time in New Zealand two single-sex schools have been on the same site. Guyon Espiner speaks to Avonside Girls' High principal Sue Hume and Shirley Boys' High School principal John Laurenson.

Videos, NZ On Screen

This 1974 end of year special for music show Popco features cover songs performed in the studio and around Christchurch. Presenting and singing are Rob Guest (before musicals fame), Steve Gilpin (before he founded Mi-Sex) and Hayden Wood. Joining them are Space Waltz (in their glam rock glory), Annie Whittle (on the banks of the Avon), show regulars the Maggie Burke Dancers in Cathedral Square, Mark Williams (sparkling in green lurex), Bunny Walters and Claire Raine, Rockinghorse (featuring 'Nature' composer Wayne Mason), Drut (complete with flaming guitar) and Beaver (in the finale).

Images, Alexander Turnbull Library

A woman sits reading a newspaper with reports about the Japanese earthquake and the latest news on Christchurch post-earthquake. Her husband has just put a Jerry Lee Lewis record on the turntable and the song 'Whole lotta shakin' goin' on' is playing; he says Didn't I always say this guy was ahead of his time?' Context - The Christchurch earthquakes of September 4 2010 and February 22 2011 as well as the Japanese earthquake and tsunami of 11 March 2011. Quantity: 1 digital cartoon(s).