Repaired Reinforced Concrete Walls and Lower-Damage Modifications

Research papers, University of Canterbury Library

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.

Workers repairing the Rendezvous Hotel

Images, UC QuakeStudies

Workers repairing the Rendezvous Hotel.

Repairs to the Rendezvous Hotel

Images, UC QuakeStudies

Repairs to the Rendezvous Hotel.

Workers repairing the Rendezvous Hotel (2)

Images, UC QuakeStudies

Workers repairing the Rendezvous Hotel.

Repairs to damaged New Regent Street facades

Images, UC QuakeStudies

Repairs to damaged New Regent Street facades.

Repairs to damaged New Regent Street facades (2)

Images, UC QuakeStudies

Repairs to damaged New Regent Street facades.

Experimental investigation of the seismic residual capacity of earthquake-…

Research papers, University of Canterbury Library

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.

BeckerFraserPhotos May 2012 photograph 041

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Magistrates Court under repair".

Armagh Street bridge - photographic record of the works

Articles, UC QuakeStudies

A document containing photographs of SCIRT's Armagh Street bridge repairs.

Mechanical Repair Strategy

Articles, UC QuakeStudies

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.

Gloucester Street bridge - video

Videos, UC QuakeStudies

A video which describes the history of the bridge and SCIRT's repair methodology.

Gloucester Street bridge - public relations flyer

Articles, UC QuakeStudies

A public relations flyer which outlines the repairs undertaken on the Gloucester Street bridge.

Armagh Street bridge - heritage diary

Articles, UC QuakeStudies

A document which details Downer's approach to heritage management when repairing the Armagh Street bridge.

Photograph by Paul Corliss 2797

Images, UC QuakeStudies

A photograph captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2766

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2749

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2746

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2747

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2748

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2752

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2751

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2750

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Protecting the past - Restoring heritage bridges

Articles, UC QuakeStudies

A document which describes the processes that SCIRT took when repairing some of Christchurch's heritage bridges.

BeckerFraserPhotos June 2012 photograph 005

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "The Edmonds clock tower under repair".

Photograph by Paul Corliss 2754

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2755

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2756

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2757

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2753

Images, UC QuakeStudies

A photograph of workers repairing the Rendezvous Hotel. The photograph is captioned by Paul Corliss, "Central city, from Manchester Street".

Photograph by Paul Corliss 2087

Images, UC QuakeStudies

A photograph captioned by Paul Corliss, "Port Hills Road factories, post drill and glue of cracks".