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Research papers, The University of Auckland Library

Seismic retrofitting of unreinforced masonry buildings using posttensioning has been the topic of many recent experimental research projects. However, the performance of such retrofit designs in actual design level earthquakes has previously been poorly documented. In 1984 two stone masonry buildings within The Arts Centre of Christchurch received posttensioned seismic retrofits, which were subsequently subjected to design level seismic loads during the 2010/2011 Canterbury earthquake sequence. These 26 year old retrofits were part of a global scheme to strengthen and secure the historic building complex and were subject to considerable budgetary constraints. Given the limited resources available at the time of construction and the current degraded state of the steel posttension tendons, the posttensioned retrofits performed well in preventing major damage to the overall structure of the two buildings in the Canterbury earthquakes. When compared to other similar unretrofitted structures within The Arts Centre, it is demonstrated that the posttensioning significantly improved the in-plane and out-of-plane wall strength and the ability to limit residual wall displacements. The history of The Arts Centre buildings and the details of the Canterbury earthquakes is discussed, followed by examination of the performance of the posttension retrofits and the suitability of this technique for future retrofitting of other historic unreinforced masonry buildings. http://www.aees.org.au/downloads/conference-papers/2013-2/

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Research papers, The University of Auckland Library

Seismic retrofitting of unreinforced masonry buildings using posttensioning has been the topic of many recent experimental research projects. However, the performance of such retrofit designs in actual design level earthquakes has previously been poorly documented. In 1984 two stone masonry buildings within The Arts Centre of Christchurch received posttensioned seismic retrofits, which were subsequently subjected to design level seismic loads during the 2010/2011 Canterbury earthquake sequence. These 26 year old retrofits were part of a global scheme to strengthen and secure the historic building complex and were subject to considerable budgetary constraints. Given the limited resources available at the time of construction and the current degraded state of the steel posttension tendons, the posttensioned retrofits performed well in preventing major damage to the overall structure of the two buildings in the Canterbury earthquakes. When compared to other similar unretrofitted structures within The Arts Centre, it is demonstrated that the posttensioning significantly improved the in-plane and out-of-plane wall strength and the ability to limit residual wall displacements. The history of The Arts Centre buildings and the details of the Canterbury earthquakes is discussed, followed by examination of the performance of the posttension retrofits and the suitability of this technique for future retrofitting of other historic unreinforced masonry buildings. http://www.aees.org.au/downloads/conference-papers/

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.

Images, UC QuakeStudies

The ruins of the historic Durham Street Methodist Church in the aftermath of the 22 February 2011 earthquake. The only parts of the building still upright are those supported by steel braces placed there after the 4 September 2010 earthquake to strengthen the building as it awaited repairs. Rubble has spilled out onto the street, knocking over the safety fences that were also erected after September. Silt from liquefaction has covered the road around the church.

Videos, UC QuakeStudies

A video of an interview with artefact analyst Gwen Jackson, about the artefacts found at the site of the Theatre Royal. Hundreds of artefacts were found under the Isaac Theatre Royal, including bottles and ceramic shards. This was part of a greater project by archaeologists to examine pre-1900 sites in the Christchurch central city before work is conducted on them. Archaeological assessment of pre-1900 buildings is required by the 1993 Historic Places Act before work can be done on the site.

Research papers, The University of Auckland Library

Following the 2010–2011 Canterbury earthquakes, a renewed focus has been directed across New Zealand to the hazard posed by the country‘s earthquake-vulnerable buildings, namely unreinforced masonry (URM) and reinforced concrete (RC) buildings with potentially nonductile components that have historically performed poorly in large earthquakes. The research reported herein was pursued with the intention of addressing several recommendations made by the Canterbury Earthquakes Royal Commission of Inquiry which were classified into the following general categories:  Identification and provisional vulnerability assessment of URM and RC buildings and building components;  Testing, assessment, and retrofitting of URM walls loaded out-of-plane, with a particular focus on highly vulnerable URM cavity walls;  Testing and assessment of RC frame components, especially those with presumably non-ductile reinforcement detailing;  Portfolio management considering risks, regulations, and potential costs for a portfolio that includes several potentially earthquake-vulnerable buildings; and  Ongoing investigations and proposed research needs. While the findings from the reported research have implications for seismic assessments of buildings across New Zealand and elsewhere, an emphasis was placed on Auckland given this research program‘s partnership with the Auckland Council, the Auckland region accounting for about a third each of the country‘s population and economic production, and the number and variety of buildings within the Auckland building stock. An additional evaluation of a historic building stock was carried out for select buildings located in Hawke‘s Bay, and additional experimental testing was carried out for select buildings located in Hawke‘s Bay and Christchurch.

Images, UC QuakeStudies

Members of the public speaking with police officers on the corner of Durham Street and Armagh Street in the aftermath of the 22 February earthquake. On the right the timber section of the historic Provincial Council Chambers can be seen, including the clock tower which has collapsed onto the road. Armagh Street leading into the city has been cordoned off by red tape.

Images, Canterbury Museum

One white over-painted hand-made electric guitar made primarily from ash and maple timbers, also incorporating wood from a variety of historic buildings in Canterbury damaged or destroyed in the 2010 - 2011 earthquakes including the Arts Centre, Kutwell’s Warehouse, Lyttleton main street pub, Timeball Station, Carlton Hotel, Merivale shops, bui...

Images, UC QuakeStudies

An aerial photograph looking west over the Arts Centre and Christ's College towards Hagley Park. The photograph has been captioned by BeckerFraserPhotos, "At the centre of this photo is a group of heritage stone buildings. Canterbury Museum and Christ's College were extensively earthquake strengthened prior to the EQs and re-opened to the public relatively quickly. The Arts Centre is undergoing extensive renovations. Hagley Park and the Botanic Gardens provide a richly colourful surrounding to these historic buildings".

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 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, 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).

Videos, UC QuakeStudies

A video of the reopening ceremony for the Heritage Hotel in Cathedral Square, which has been closed since the 22 February 2011 earthquake. The video shows Governor General Sir Jerry Mateparae opening the building while a string trio plays. It also includes footage of a speech by the Governor General, and a tour of the hotel.

Audio, Radio New Zealand

The Earthquake Commission (EQC) criticised for misleading and inadequate measurements on housing foundations when assessing damage to Canterbury homes; Wellington historic building champions vow to save heritage structure in the capital; the spread of didymo in Fiordland; Defence Force sentencing today after drowning last year; the censorship of Maniac, arty audiences only please, and; the PM changes tack on working with NZ First.

Images, eqnz.chch.2010

Manchester Courts, a seven-storey building on the corner of Hereford and Manchester Streets, is a category one historic place built in 1905-1906 that up until the 7.1 earthquake, housed offices. News of the scheduled demolition provoked an emotional response from the people of Christchurch. UPDATE 14 October 2010: A group of residents is campaig...

Images, eqnz.chch.2010

Manchester Courts, a seven-storey building on the corner of Hereford and Manchester Streets, is a category one historic place built in 1905-1906 that up until the 7.1 earthquake, housed offices. News of the scheduled demolition provoked an emotional response from the people of Christchurch. UPDATE 14 October 2010: A group of residents is campaig...

Audio, Radio New Zealand

An architect and art historian is setting up an action group to oppose the demolition of one of the most well-known churches in Christchurch, the Cathedral of the Blessed Sacrament. The church, registered as a Category 1 building with Heritage New Zealand, was damaged in the 2011 earthquakes and has sat in a state of disrepair ever since. Dr Anna Crighton is from Historic Places Aotearoa. She talks to Susie Ferguson.

Images, Alexander Turnbull Library

Photographically reproduced postcard shows a semi-humorous illustration by J L Martin of the Provincial Government buildings in Christchurch, seen looking southeast from across the intersection of Durham and Armagh Streets, imagined as warped and twisting in the Murchison Earthquake of 1929. Speech bubbles come from the mouths of some small figures: "Women & children first", "Order please", "Oh for the wings of a dove", "Stop that jazzing up there", "Wheres my puff box". The title below the picture is: "The camera cannot lie". The artist J L Martin has handwritten a message on the verso. In 1928, this building was occupied by the Commissioner of Crown Lands, the Receiver of Land Revenue, the Registrar of Deeds, the Lands Transfer Office and the Lands & Survey Department (See Wises directory 1928, page 214) Other Titles - Christchurch, Christmas Inscriptions: Verso - centre - With kind remembrances / From yours sincerely / J L Martin Quantity: 1 Other printed ephemera item(s). Physical Description: Photograph on postcard, 88 x 137 mm. Provenance: Ms McLean was the granddaughter of Arthur John Wicks, the Chief Draughtsman, Head Office, New Zealand Lands & Survey Department. He had worked with Crown Lands in Blenheim before moving to Wellington in 1917. The artist J L Martin sent the card to Mr Wicks.

Videos, UC QuakeStudies

A video of a tour of the historic Canterbury Club building on Cambridge Terrace. The club will reopen on 9 June 2012, after an intensive rebuild and restoration process which has fixed the damage from the 22 February 2011 earthquake. The video also includes an interview with Dr Brent Stanley, the Canterbury Club President. Stanley talks about the strengthening work that was done in 2009, as well as the history of the club.

Images, Alexander Turnbull Library

Shows a sick and damaged Christchurch Anglican Cathedral in a hospital bed with two attendants. The Cathedral asks 'Can ya just pull the plug and let me die peacefully?'. Context refers to recent comments by Bishop Victoria Matthews that the Christchurch Cathedral is 'being left to die with no dignity' because of ongoing legal battles about its future. There has been ongoing debate and controversy over whether the Cathedral should be demolished, reconstructed or restored following damage suffered in the February 2011 Earthquake. Quantity: 1 digital cartoon(s).

Audio, Radio New Zealand

A local developer is looking to reshape Ashburton's triangle, the historic retail centre of the town. Robert Grice owns a number of buildings on Victoria Street that require earthquake strengthening and he wants to redevelop the existing shops into a new mixed use hospitality precinct named The Ash. Jonathan also discusses an attempt to add quarter of a million dollars to ECan's annual plan budget which has been labelled a "slap in the face" by Environment Canterbury councillor Ian Mackenzie. And a hold-up of plumbing parts and red tape at the border means the Staveley Ice Rink won't be open to skaters and curlers until at least mid-June. Local Democracy Reporter - Mid Canterbury c from the Ashburton Guardian

Images, Alexander Turnbull Library

In the foreground PM John Key drives a bulldozer over Christchurch; in the background two engineers read a newspaper report that says 'P.M. gives false demolition number, PM gives false World Cup hope' and one of them says 'Now I know why those things are called BULLdozers..' Context - Prime Minister John Key is sticking to a government estimate that 10,000 Christchurch homes will need to be razed despite criticism that he should wait for official figures; he also stated that 100,000 homes may need repairs, despite Civil Defence saying it has only checked 70,000 homes so far. John Key was also insisting that there was a chance of keeping World Cup rugby games in Christchurch but an official announcement on 16 March dashed those hopes. Quantity: 1 digital cartoon(s).