As a result of the Canterbury earthquakes, over 60% of the concrete buildings in the Christchurch Central Business District have been demolished. This experience has highlighted the need to provide guidance on the residual capacity and repairability of earthquake-damaged concrete buildings. Experience from 2010 Chile indicates that it is possible to repair severely damaged concrete elements (see photo at right), although limited testing has been performed on such repaired components. The first phase of this project is focused on the performance of two lightly-reinforced concrete walls that are being repaired and re-tested after damage sustained during previous testing.
This poster presents preliminary results of ongoing experimental campaigns at the Universities of Auckland and Canterbury, aiming at investigating the seismic residual capacity of damaged reinforced concrete plastic hinges, as well as the effectiveness of epoxy injection techniques for restoring their stiffness, energy dissipation, and deformation capacity characteristics. This work is part of wider research project which started in 2012 at the University of Canterbury entitled “Residual Capacity and Repairing Options for Reinforced Concrete Buildings”, funded by the Natural Hazards Research Platform (NHRP). This research project aims at gaining a better understanding and providing the main end-users and stakeholders (practitioner engineers, owners, local and government authorities, insurers, and regulatory agencies) with comprehensive evidence-based information and practical guidelines to assess the residual capacity of damaged reinforced concrete buildings, as well as to evaluate the feasibility of repairing and thus support their delicate decision-making process of repair vs. demolition or replacement.
A document containing photographs of SCIRT's Armagh Street bridge repairs.
A copy of the mechanical repair strategy for the Townsend Telescope. The strategy was written by Graeme Kershaw, Technician at the University of Canterbury Department of Physics and Astronomy.
A video which describes the history of the bridge and SCIRT's repair methodology.
A public relations flyer which outlines the repairs undertaken on the Gloucester Street bridge.
A document which details Downer's approach to heritage management when repairing the Armagh Street bridge.
A document which describes the processes that SCIRT took when repairing some of Christchurch's heritage bridges.
A pdf copy of a work notice issued by SCIRT giving an overview of the Beachville Road seawall rebuild project.
An award application for the Civil Contractors NZ Hirepool Construction Excellence Awards 2015 which details Downer's approach to repairing the Armagh Street bridge.
A report which details the archaeological monitoring carried out during the course of SCIRT project 11136, repairs to the Gloucester Street bridge.
An award application submitted for the IPWEA Annual Excellence Awards 2016, detailing Fulton Hogan's work repairing the repair methodology for the Sumner Road retaining wall - stage 4.
A paper which outlines the observed damage to Christchurch City Council-owned retaining walls and the repair solutions developed.
A PDF copy of a handwritten journal kept by Robin Robins, documenting the repair work on his earthquake-damaged home between November 2012 and April 2017. Note that some personal information has been redacted from this document.
An entry from Deborah Fitchett's blog for 31 January 2012, posted to Livejournal. The entry is titled, "My #eqnz repairs story".The entry was downloaded on 13 April 2015.
An entry from Deborah Fitchett's blog for 31 January 2012, posted to Dreamwidth. The entry is titled, "My #eqnz repairs story".The entry was downloaded on 16 April 2015.
A conference paper prepared for the 4th Australasian Engineering Heritage Conference which outlines the challenges faced by SCIRT when repairing the Armagh Bridge, Colombo Bridge and Antigua Bridge.
A digger scraping damaged tarseal from River Road in Richmond. The photographer comments, "Road repairs".
A guideline created for SCIRT Delivery Teams which outlines the requirements for working around heritage items.
A brochure created for Beca Heritage Week 2014, outlining SCIRT's repair work on heritage structures in the Central City. It was handed out to members of the public at SCIRT's walk and talk tours.
A run sheet which details who will do what at the opening of the Gloucester Street bridge.
A report which details the findings of a performance audit carried out by the Office of the Auditor-General to assess the effectiveness and efficiency of arrangements to repair Christchurch's horizontal infrastructure.
A copy of the plan developed in 2011 to facilitate a collaborative approach between all stakeholders and minimise the impact on the traffic network, because of the extensive repair works necessary to repair vertical and horizontal infrastructure.
A paper which outlines SCIRT's approach to asset assessment, design and repair of damaged retaining walls, and presents a case study of a retaining wall rebuild, on Cunningham Terrace, Lyttelton.
A crane sits beside the sewage treatment ponds in Bromley. The photographer comments, "Bromley sewage treatment ponds, under repair".
A crane sits beside the sewage treatment ponds in Bromley. The photographer comments, "Bromley sewage treatment ponds, under repair".
A crane sits beside the sewage treatment ponds in Bromley. The photographer comments, "Bromley sewage treatment ponds, under repair".
A document which describes the process that SCIRT took to repair the Sumner Road retaining wall - stage 4.
A report which details the findings of a follow-up performance audit carried out by the Office of the Auditor-General to assess the effectiveness and efficiency of arrangements to repair Christchurch's horizontal infrastructure.
A consent granted by the Christchurch City Council, providing consent to carry out earthquake repair work that may affect protected vegetation.