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Images, UC QuakeStudies

Photograph captioned by Fairfax, "Work to restore and earthquake-strengthen the badly damaged historic St Paul's Trinity Pacific Presbyterian Church on Cashel Street has begun after resource consents were granted by the Christchurch City Council, and a preferred contractor was selected recently. Leading hand, Iain Piper (left) and site manager Mike McKee at work on the upstairs seating area".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Work to restore and earthquake-strengthen the badly damaged historic St Paul's Trinity Pacific Presbyterian Church on Cashel Street has begun after resource consents were granted by the Christchurch City Council, and a preferred contractor was selected recently. Leading hand, Iain Piper (left) and site manager Mike McKee at work on the upstairs seating area".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Work to restore and earthquake-strengthen the badly damaged historic St Paul's Trinity Pacific Presbyterian Church on Cashel Street has begun after resource consents were granted by the Christchurch City Council, and a preferred contractor was selected recently. Leading hand, Iain Piper (left) and site manager Mike McKee at work on the upstairs seating area".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Work to restore and earthquake-strengthen the badly damaged historic St Paul's Trinity Pacific Presbyterian Church on Cashel Street has begun after resource consents were granted by the Christchurch City Council, and a preferred contractor was selected recently. Site manager Mike McKee (left) and leading hand, Iain Piper, look over the work to be done in the towers".

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

A review of the week's news including... Mt Albert voters head to the polls to select a new MP this weekend, we hear from three candidates contesting the by election, Maori political leaders respond explosively to the Labour leader's comments that the Maori party is "not kaupapa Maori", how did a senior council roading manager receive over 1.1 million dollars in payments from a council contractor without his bosses knowing? the High Court rules Kim Dotcom is eligible for extradition US, the Fire Service's principal rural fire officer says lives may have been lost had firefighters not been told to return to their station, Sky TV says a decision to deny its billion dollar proposal to buy Vodafone is bizarre and disappointing, Pharmac considers funding women's sanitary products, we have coverage from the 6th anniversary of the Christchurch earthquake, the Prime Minister puts the board of the NZ Super Fund on notice after it approved a 23 percent pay increase for its Chief Executive, an Australian woman helping New Zealand dairy farmers across the Tasman who have fallen onto hard times is horrified by a lack of Government help and helicopters to Hercules and F-16s to classic spitfire replicas are on display at Ohakea airforce base during this weekend's Air Tattoo.

Audio, Radio New Zealand

So what's the Prime Minister Jacinda Ardern got to look forward to when she's back at work? Construction firms falling over, business confidence at a nine-year low, unemployment rising and New Zealand is desperate need of infrastructure to cope with its 10 percent population shock in the last five years. Welcome back Ms Ardern! Ebert Construction is the latest construction company to go belly-up. The Panelists consider why, when the country needs new buildings the most, construction companies aren't making the grade? Peter Silcock of Civil Contractors talks bout the failing of processes and business models used by building firms. Christchurch central seems to have a business micro-climate. And right now it's chilly. The CBD is nothing like it used to be before the 2011 earthquake and those businesses that re-opened say they really had no choice because of the demands of insurance companies. The Kingsland Business Society in Auckland is offering free child minding for couples who go out for the evening in the suburb. United States federal air marshals now follow seemingly ordinary citizens not suspected of a crime, nor on any terrorist watch list. It's a new surveillance programme called "Quiet Skies" and it collects extensive information on travellers based on their behaviour on flights and especailly in airports.

Research papers, University of Canterbury Library

The Canterbury earthquake sequence in New Zealand’s South Island induced widespread liquefaction phenomena across the Christchurch urban area on four occasions (4 Sept 2010; 22 Feb; 13 June; 23 Dec 2011), that resulted in widespread ejection of silt and fine sand. This impacted transport networks as well as infiltrated and contaminated the damaged storm water system, making rapid clean-up an immediate post-earthquake priority. In some places the ejecta was contaminated by raw sewage and was readily remobilised in dry windy conditions, creating a long-term health risk to the population. Thousands of residential properties were inundated with liquefaction ejecta, however residents typically lacked the capacity (time or resources) to clean-up without external assistance. The liquefaction silt clean-up response was co-ordinated by the Christchurch City Council and executed by a network of contractors and volunteer groups, including the ‘Farmy-Army’ and the ‘Student-Army’. The duration of clean-up time of residential properties and the road network was approximately 2 months for each of the 3 main liquefaction inducing earthquakes; despite each event producing different volumes of ejecta. Preliminary cost estimates indicate total clean-up costs will be over NZ$25 million. Over 500,000 tonnes of ejecta has been stockpiled at Burwood landfill since the beginning of the Canterbury earthquakes sequence. The liquefaction clean-up experience in Christchurch following the 2010-2011 earthquake sequence has emerged as a valuable case study to support further analysis and research on the coordination, management and costs of large volume deposition of fine grained sediment in urban areas.

Audio, Radio New Zealand

1. TODD McCLAY to the Minister of Finance: What reports has he received on the economy? 2. KEVIN HAGUE to the Minister of Labour: Does she agree that the test of practicability in the Health and Safety in Employment (Mining-Underground) Regulations 1999 is likely to result in different mines having different safety standards, in contrast to the regulations in place until 1992? 3. Hon ANNETTE KING to the Prime Minister: In light of his comment that "New Zealand is to be congratulated because, at least in terms of the gender pay gap, ours is the third lowest in the OECD", does that mean he is satisfied with the 10.6 percent gap between men's and women's pay in our country? 4. LOUISE UPSTON to the Minister for Social Development and Employment: What reports has she received on the latest benefit numbers? 5. Hon CLAYTON COSGROVE to the Minister for Canterbury Earthquake Recovery: Does he consider the allocation of the value of the land within the rating valuation process to be robust, when it has produced such variable outcomes, leaving many in the red zone with insufficient funds to buy a section to take advantage of the replacement option in their insurance policy? 6. Dr CAM CALDER to the Minister for the Environment: What work is his Ministry doing to help New Zealand take up the opportunity from green growth following the OECD May 2011 report on the high expected global demand for such products and services? 7. Hon MARYAN STREET to the Minister of Foreign Affairs: How many human resources contracts, if any, were let by the Ministry of Foreign Affairs and Trade without tenders being invited in 2010/2011, and what criteria were used to assess non-tendered contractors? 8. PAUL QUINN to the Minister of Transport: What is the Government doing to improve Wellington's commuter rail network? 9. METIRIA TUREI to the Prime Minister: Does he stand by his statement "there is no question in my mind - someone would be better off in paid employment than on welfare. If they were not, that is a real indictment on the welfare system"? 10. Hon TREVOR MALLARD to the Minister of Finance: When he said that "I did visit the Chinese Investment Corporation … They are very pleased with New Zealand's economic policy", was one of the policies he discussed with this foreign sovereign wealth fund his plan for privatising state assets? 11. JAMI-LEE ROSS to the Minister of Broadcasting: What recent announcements has the Government made on progress towards digital switchover? 12. GRANT ROBERTSON to the Minister of Health: Does he stand by his statement to the Cabinet Expenditure Control Committee that "we may need to take some tough choices regarding the scope and range of services the public health system can provide to New Zealanders"?

Research papers, University of Canterbury Library

Several concrete cladding panels were damaged during the 2011 Christchurch Earthquakes in New Zealand. Damage included partial collapse of panels, rupture of joint sealants, cracking and corner crushing. Installation errors, faulty connections and inadequate detailing were also contributing factors to the damage. In New Zealand, two main issues are considered in order to accommodate story drifts in the design of precast cladding panels: 1) drift compatibility of tieback or push-pull connections and 2) drift compatibility of corner joints. Tieback connections restrain the panels in the out-of-plane direction while allowing in-plane translation with respect to the building frame. Tieback connections are either in the form of slots or oversized holes or ductile rods usually located at the top of the panels. Bearing connections are also provided at the bottom of panels to transfer gravity loads. At the corners of a building, a vertical joint gap, usually filled with sealants, is provided between the two panels on the two orthogonal sides to accommodate the relative movement. In cases where the joint gap is not sufficient to accommodate the relative movements, panels can collide, generating large forces and the likely failure of the connections. On the other hand, large gaps are aesthetically unpleasing. The current design standards appear to recognize these issues but then leave most of the design and detailing to the discretion of the designers. In the installation phase, the alignment of panels is one of the main challenges faced by installers (and/or contractors). Many prefer temporary props to guide, adjust and hold the panels in place whilst the bearing connections are welded. Moreover, heat generated from extensive welding can twist the steel components inducing undesirable local stresses in the panels. Therefore, the installation phase itself is time-consuming, costly and prone to errors. This paper investigates the performance of a novel panel system that is designed to accommodate lateral inter-story drift through a ‘rocking’ motion. In order to gauge the feasibility of the system, six 2m high precast concrete panels within a single-story steel frame structure have been tested under increasing levels of lateral cyclic drift at the University of Canterbury, New Zealand. Three different panel configurations are tested: 1) a panel with return cover and a flat panel at a corner under unidirectional loading, 2) Two adjacent flat panels under unidirectional loading, and 3) Two flat panels at another oblique corner under bidirectional loading. A vertical seismic joint of 25 mm, filled with one-stage joint sealant, is provided between two of the panels. The test results show the ability of the panels with ‘rocking’ connection details to accommodate larger lateral drifts whilst allowing for smaller vertical joints between panels at corners, quick alignment and easy placement of panels without involving extensive welding on site.