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BeckerFraserPhotos May 2013 photograph 141
Images, UC QuakeStudies
Damage to the north side of ChristChurch Cathedral. The damaged windows have been boarded up and weeds can be seen growing in the lawn. A walkway from Gloucester Street to the Square was opened up for a few days to allow the public a closer look at the cathedral.
BeckerFraserPhotos March 2012 photograph 246
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "The west wall of the Christ Church Cathedral where the rose window fell during the 23 December 2011 earthquake. Steel bracing has been used to hold up the front of the church".
BeckerFraserPhotos October 2011 photograph 009
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Menlo Terrace".
Photograph by Paul Corliss 0126
Images, UC QuakeStudies
A photograph captioned by Paul Corliss, "Avonside and Retreat Roads post earthquake".
Photograph by Paul Corliss 0670
Images, UC QuakeStudies
A photograph of a postal worker delivering mail on a street with damaged houses. The photograph is captioned by Paul Corliss, "Redcliffs and Sumner".
Pseudo-static cyclic, snap back and shake table testing of PreWEC self-cen…
Research papers, The University of Auckland Library
The Christchurch earthquakes have highlighted the importance of low-damage structural systems for minimising the economic impacts caused by destructive earthquakes. Post-tensioned precast concrete walls have been shown to provide superior seismic resistance to conventional concrete construction by minimising structural damage and residual drifts through the use of a controlled rocking mechanism. The structural response of unbonded post-tensioned precast concrete wall systems, with and without additional energy dissipating elements, were investigated by means of pseudo-static cyclic, snap back and forced vibration testing with shake table testing to be completed. Two types of post-tensioned rocking wall system were investigated; a single unbonded post-tensioned precast concrete wall or Single Rocking Wall (SRW) and a system consisting of a Precast Wall with End Columns (PreWEC). The equivalent viscous damping (EVD) was evaluated using both the pseudo-static cyclic and snap back test data for all wall configurations. The PreWEC configurations showed an increase in EVD during the snap back tests in comparison to the cyclic test response. In contrast the SRW showed lower EVD during the snap back tests in comparison to the SRW cyclic test response. Despite residual drifts measured during the pseudo-static cyclic tests, negligible residual drift was measured following the snap back tests, highlighting the dynamic shake-down that occurs during the free vibration decay. Overall, the experimental tests provided definitive examples of the behaviour of posttensioned wall systems and validated their superior performance compared to reinforced concrete construction when subjected to large lateral drifts.
IMG_2515
Images, eqnz.chch.2010
Wall moved/cracked by liquification
You Do Not Have to Drop, Cover and Hold During a Quake
Images, UC QuakeStudies
Graffiti on a brick wall reads "Pray hope and don't worry". The photographer comments, "Seen on a wall on Moorhouse Avenue, Christchurch".
Koen Broekema's Photograph 087
Images, UC QuakeStudies
A close up of the damaged stonework of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
Koen Broekema's Photograph 036
Images, UC QuakeStudies
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the front wall to limit further damage.
Koen Broekema's Photograph 027
Images, UC QuakeStudies
A close up of the damaged stonework of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
Man was killed by a falling concrete wall
Audio, Radio New Zealand
The Royal Commission investigating the Canterbury earthquakes has heard that the premises where a man was killed by a falling concrete wall was not inspected by structural engineers between the September and February quakes.
Photograph by Jocelyn Kinghorn 416
Images, UC QuakeStudies
A red-stickered house with cracks running down the brick wall. The house has also separated slightly from the foundations and is now on a lean. The brick wall on the house next door has partially crumbled.
BeckerFraserPhotos April 2011 photograph 098
Images, UC QuakeStudies
The Coffee House on Montreal Street with a damaged side wall. Plywood and weather proof paper has been placed over the wall to keep wind and rain out of the building.
BeckerFraserPhotos October 2010 photograph 023
Images, UC QuakeStudies
The east wall of St Luke's Church on Manchester Street. The top of the wall has broken away and is now covered with plastic to prevent weather damage inside the building.
BeckerFraserPhotos February 2012 photograph 0175
Images, UC QuakeStudies
A photograph of a flying pig painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Decorated retaining wall in Cunningham Terrace, Lyttelton".
BeckerFraserPhotos February 2012 photograph 0179
Images, UC QuakeStudies
A photograph of flying pigs painted on concrete blocks in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Decorated retaining wall in Cunningham Terrace, Lyttelton".
Poetica Urban Poetry Project Photograph 4
Images, UC QuakeStudies
A photograph of a woman applying filler to a concrete-block wall, in preparation for painting it to become the Poetica Urban Poetry wall.
Paul and Sam Corliss's Street Art Photograph (2015:03:29 13:22:40)
Images, UC QuakeStudies
A photograph of street art. The artwork is on the wall surrounding Waltham Pool and faces towards Waltham Park.
Diabetes Centre Photograph 053
Images, UC QuakeStudies
A photograph of the wooden frame of a wall in the Diabetes Centre. The panelling has been removed from the wall, exposing the frame and several pipes and wires underneath.
Diabetes Centre Photograph 049
Images, UC QuakeStudies
A photograph of several panels hanging from the ceiling of the Diabetes Centre. The panelling has been taken off the wall to the right, exposing the wooden structure beneath.
WEMO ERT Set 1 - March 2011 - Photograph 07
Images, UC QuakeStudies
A photograph of the earthquake damage to a room inside a house in Christchurch. Large sections of the plaster have crumbled from the walls, revealing the brick wall underneath.
Photograph of Gap Filler project 20 (45)
Images, UC QuakeStudies
The half-completed "Knit Happens" mural on the exposed brick wall of a building. The mural has been designed to look like a knitted pattern.
Koen Broekema's Photograph 072
Images, UC QuakeStudies
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Bracing has been placed against the front wall to limit further damage.
Koen Broekema's Photograph 084
Images, UC QuakeStudies
A close up of the front of Christ Church Cathedral. The upper part of the front wall has crumbled leaving the inside space exposed. Steel bracing has been placed against the wall to limit further damage.
BeckerFraserPhotos May 2011 photograph 0484
Images, UC QuakeStudies
Damage to a car parking building on Lichfield Street. Part of the concrete wall has crumbled, exposing steel reinforcing rods within, and damaging an artwork painted on the wall.
Umut Akguzel Photograph 163
Images, UC QuakeStudies
A photograph of a broken brick wall beside the Amuri Courts car park building on Armagh Street. USAR codes have been spray painted in yellow on the wall.
BeckerFraserPhotos March 2011 photograph 122
Images, UC QuakeStudies
Scaffolding on the side of the Windsor Hotel which has been bent by the collapse of the building's brick wall. The hotel's fire escape has buckled and become detached from the wall.
BeckerFraserPhotos February 2011 photograph 429
Images, UC QuakeStudies
A detail of damage to the interior wall of the Durham Street Methodist Church. Plaster and concrete have fallen away from the wall, baring the stone work.
Canterbury Earthquake September 2010 - Photograph 32
Images, UC QuakeStudies
Damage to a house in Richmond. Part of the brick wall is visibly out of alignment, leaving large gaps at the corner of the house. The photographer comments, "Dining room exterior wall".