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Research papers, University of Canterbury Library

Principal contractors can achieve better financial performance in civil construction projects by increasing the proportion of works delivered by subcontractors. However, anecdotally the use of subcontractors is thought to be make principal contractors less competitive due to compounding profit margins. This study found that projects with a higher proportion of subcontracted work exhibit better financial results than projects with less work delivered by subcontractors. This study uses the Christchurch Infrastructure Alliance (known as the Stronger Christchurch Infrastructure Rebuild Team, SCIRT) as a case study to observe why principal contracting firms engage subcontractors and the effect subcontracting has on the overall performance of a construction project. Five top tier civil contracting firms (known as ‘delivery teams’) participated in the alliance. Each team was responsible for the delivery of individual projects. A sample of 334 individual SCIRT projects were analysed, and key delivery team staff were surveyed, to investigate the effect subcontractor engagement has on performance. Between the five delivery teams there were clear differences in how much work was delivered via subcontracts. The extent of this subcontractor engagement had a significant effect on the relative performance of the principal contractor. A positive correlation between subcontractor engagement and overall financial performance is observed, and a negative correlation is observed between subcontractor engagement and non-financial performance. Although the causes of these relationships appear complex, the primary reason appears to be that subcontracting fosters increased productivity by cascading financial performance incentives closer to the physical construction task. To maximise competitiveness and financial performance, principal contractors must embrace the use of subcontractors and develop efficient systems of managing subcontracted work.

Research papers, The University of Auckland Library

Following the 2010/2011 Canterbury, New Zealand earthquakes, a detailed door-to-door survey was conducted in the Christchurch region to establish the earthquake performance of lightweight timber-framed residential dwellings with a masonry veneer external cladding system. The post-earthquake survey involved documenting the condition of dwellings in areas that had experienced different levels of earthquake shaking, allowing comparison between the performance of different veneer systems and different shaking intensities. In total, just fewer than 1,100 residential dwellings were inspected throughout the wider Christchurch area. The survey included parameters such as level of veneer damage, type of veneer damage, observed crack widths, and level of repair required. It is concluded that based on observed earthquake performance at the shaking intensities matching or exceeding ultimate limit state loading, the post-1996 veneer fixing details performed satisfactorily and continued use of the detail is recommended without further modification. AM - Accepted Manuscript

Research papers, The University of Auckland Library

Following the 2010/2011 Canterbury earthquakes a detailed campaign of door to door assessments was conducted in a variety of areas of Christchurch to establish the earthquake performance of residential dwellings having masonry veneer as an external cladding attached to a lightweight timber framing system. Specifically, care was taken to include regions of Christchurch which experienced different levels of earthquake shaking in order to allow comparison between the performance of different systems and different shaking intensities. At the time of the inspections the buildings in the Christchurch region had been repeatedly subjected to large earthquakes, presenting an opportunity for insight into the seismic performance of masonry veneer cladding. In total just under 1100 residential dwellings were inspected throughout the wider Christchurch area, of which 24% were constructed using the older nail-on veneer tie system (prior to 1996) and 76% were constructed using screw fixed ties to comply with the new 1996 standards revision (post-1996), with 30% of all inspected houses being of two storey construction. Of the inspected dwellings 27% had some evidence of liquefaction, ground settlement or lateral spreading. Data such as damage level, damage type, crack widths, level of repair required and other parameters were collected during the survey. A description of the data collection processes and a snapshot of the analysis results are presented within. http://15ibmac.com/home/

Audio, Radio New Zealand

After lengthy construction and Covid-19 delays, a centrepiece in Christchurch's earthquake rebuild will finally open its doors today. The $475 million convention centre called Te Pae is already booked to host 150 events next year, but they're not expected to be money-makers. Reporter Jean Edwards took a tour.

Audio, Radio New Zealand

158 other buildings may share CTV construction flaw; US defence chief lifts ban on NZ vessels in US ports; first snapshot of national standards data published today; Korean fishing boat officers fined more than $400,000; and SFO starts investigation into Christchurch earthquake insurance fraud.

Articles, UC QuakeStudies

A plan which outlines the function, roles and responsibilities of SCIRT during an emergency event affecting SCIRT construction works. The first version of this plan was produced on 30 April 2012. Note that personal details of key personnel have been removed from this document.

Images, UC QuakeStudies

A photograph of the south side of the building at 112 Manchester Street. A contemporary billboard for Fortis Construction reads, "Let's build our new city together - kia kaha". It partly obscures an old painted sign for Polson's Decorators and Signwriters, which reads "Protect your investment. Paint your property regularly - and save money".

Images, UC QuakeStudies

Damage to the Cathedral of the Blessed Sacrament. Looking through the fence on to the side and front where shipping containers are being used to support the walls. On the cordon are signs that say 'Danger. Demolition in Progress. No Entry', and 'Monitored construction alarms. Site secured. No Unauthorised entry'.

Research papers, Victoria University of Wellington

A natural disaster will inevitably strike New Zealand in the coming years, damaging educational facilities. Delays in building quality replacement facilities will lead to short-term disruption of education, risking long-term inequalities for the affected students. The Christchurch earthquake demonstrated the issues arising from a lack of school planning and support. This research proposes a system that can effectively provide rapid, prefabricated, primary schools in post-disaster environments. The aim is to continue education for children in the short term, while using construction that is suitable until the total replacement of the given school is completed. The expandable prefabricated architecture meets the strength, time, and transport requirements to deliver a robust, rapid relief temporary construction. It is also adaptable to any area within New Zealand. This design solution supports personal well-being and mitigates the risk of educational gaps, PTSD linked with anxiety and depression, and many other mental health disorders that can impact students and teachers after a natural disaster.

Images, eqnz.chch.2010

On a walk around the neighbourhood, December 3, 2013, Christchurch New Zealand. www.stuff.co.nz/the-press/christchurch-life/avenues/featu...

Images, eqnz.chch.2010

Knox Church earthquake repair/rebuild on a walk around Christchurch December 11, 2013 New Zealand. www.stuff.co.nz/the-press/news/christchurch-earthquake-20... All about our ear...

Images, UC QuakeStudies

A photograph of a temporary installation titled Highlight under construction in the Re:START mall car park on Cashel Street. The installation was created by students from Unitec Architecture Department for Canterbury Tales - a carnivalesque procession which was the main event of FESTA 2013.

Images, UC QuakeStudies

A photograph of a temporary installation titled Highlight under construction in the Re:START mall car park on Cashel Street. The installation was created by students from Unitec Architecture Department for Canterbury Tales - a carnivalesque procession which was the main event of FESTA 2013.

Images, UC QuakeStudies

A photograph of a temporary installation titled Highlight under construction in the Re:START mall car park on Cashel Street. The installation was created by students from Unitec Architecture Department for Canterbury Tales - a carnivalesque procession which was the main event of FESTA 2013.

Images, UC QuakeStudies

A photograph of a temporary installation titled Highlight under construction in the Re:START mall car park on Cashel Street. The installation was created by students from Unitec Architecture Department for Canterbury Tales - a carnivalesque procession which was the main event of FESTA 2013.

Images, UC QuakeStudies

A photograph of a temporary installation titled Highlight under construction in the Re:START mall car park on Cashel Street. The installation was created by students from Unitec Architecture Department for Canterbury Tales - a carnivalesque procession which was the main event of FESTA 2013.

Images, eqnz.chch.2010

A crane topples over on Victoria Street while taking glass up to some windows. No one was hurt and the glass never broke. Victoria Street was closed from 7:30am to later in the evening. This all happen on the Knox Plaza building site. Christchurch October 13, 2014 New Zealand.

Images, UC QuakeStudies

Urban Search and Rescue personnel escorting construction workers down Colombo Street in the aftermath of the 22 February 2011 earthquake. Behind them a team of Fire Service and Urban Search and Rescue personnel can be seen using a crane to check the Forsyth Barr building for trapped people.

Images, UC QuakeStudies

Urban Search and Rescue personnel escorting construction workers down Colombo Street in the aftermath of the 22 February 2011 earthquake. Behind them a team of Fire Service and Urban Search and Rescue personnel can be seen using a crane to check the Forsyth Barr building for trapped people.

Images, UC QuakeStudies

A large pile of liquefaction silt at a dump on Breezes Road. The photographer comments, "Breezes Road and Anzac Drive have recently opened but are now home to a brand new range of hills thanks to mountains of silt that have been collected by the hard working construction guys that have done a sterling job on the road there".

Research papers, The University of Auckland Library

This paper shows an understanding of the availability of resources in post-disaster reconstruction and recovery in Christchurch, New Zealand following its September 4, 2010 and February 22, 2011 earthquakes. Overseas experience in recovery demonstrates how delays and additional costs may incur if the availability of resources is not aligned with the reconstruction needs. In the case of reconstruction following Christchurch earthquakes, access to normal resource levels will be insufficient. An on-line questionnaire survey, combined with in-depth interviews was used to collect data from the construction professionals that had been participated in the post-earthquake reconstruction. The study identified the resources that are subject to short supply and resourcing challenges that are currently faced by the construction industry. There was a varied degree of impacts felt by the surveyed organisations from resource shortages. Resource pressures were primarily concentrated on human resources associated with structural, architectural and land issues. The challenges that may continue playing out in the longer-term reconstruction of Christchurch include limited capacity of the construction industry, competition for skills among residential, infrastructure and commercial sectors, and uncertainties with respect to decision making. Findings provide implications informing the ongoing recovery and rebuild in New Zealand. http://www.iiirr.ucalgary.ca/Conference-2012

Research papers, The University of Auckland Library

Unreinforced masonry (URM) is a construction type that was commonly adopted in New Zealand between the 1880s and 1930s. URM construction is evidently vulnerable to high magnitude earthquakes, with the most recent New Zealand example being the 22 February 2011 Mw6.3 Christchurch earthquake. This earthquake caused significant damage to a majority of URM buildings in the Canterbury area and resulted in 185 fatalities. Many URM buildings still exist in various parts of New Zealand today, and due to their likely poor seismic performance, earthquake assessment and retrofit of the remaining URM building stock is necessary as these buildings have significant architectural heritage and occupy a significant proportion of the nation’s building stock. A collaborative research programme between the University of Auckland and Reid Construction Systems was conducted to investigate an economical yet effective solution for retrofitting New Zealand’s existing URM building stock. This solution adopts the shotcrete technique using an Engineered Cementitious Composite (ECC), which is a polyvinyl alcohol fibre reinforced mortar that exhibits strain hardening characteristics. Collaborations have been formed with a number of consulting structural engineers throughout New Zealand to develop innovative and cost effective retrofit solutions for a number of buildings. Two such case studies are presented in this paper. http://www.concrete2013.com.au/technical-program/

Images, UC QuakeStudies

A view looking south down Durham Street. Two fire engines are driving north, and a pair of construction workers are walking up the road. Behind them is the damaged Provincial Council Legislative Chambers. The building's walls and roof have collapsed, as has the scaffolding which was erected to repair it after the 4 September 2010 earthquake.