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BeckerFraserPhotos September 2011 photograph 227
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Concrete munching jaws in Madras Street".
WEMO ERT Set 1 - March 2011 - Photograph 81
Images, UC QuakeStudies
A photograph of the earthquake damage to a building in central Christchurch. The basement of the building has collapsed and the concrete blocks have broken away from each other. The left corner of the building has also suffered damage, with many of the concrete blocks shaking loose.
BeckerFraserPhotos June 2012 photograph 087
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "A concrete crusher with workmen salvaging reinforcing steel from the debris, Hereford Street".
BeckerFraserPhotos October 2011 photograph 318
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "New construction, Victoria Street".
Rebekah Rogers WEMO Photograph 030
Images, UC QuakeStudies
A photograph of members of the New Zealand Army deconstructing a concrete block wall.
Elizabeth Ackermann Photograph 285
Images, UC QuakeStudies
A photograph of exposed steel and concrete from the partially-demolished Art Gallery Apartments building on Gloucester Street.
Cracked
Images, UC QuakeStudies
A large crack in the concrete floor slab of a building in Barbadoes Street. The photographer comments, "This is a picture of the cracked concrete floor in a shop in the Christchurch CBD. I have a similar crack in my home, but I have not lifted the carpet to look".
Umut Akguzel Photograph 199
Images, UC QuakeStudies
A photograph of rubble piled up in a car park in the Christchurch central city. Several flights of concrete stairs can be seen.
BeckerFraserPhotos October 2010 photograph 099
Images, UC QuakeStudies
A concrete water tank in Hororata. The top half has moved off the pillars and is resting precariously against a tree.
Nic Johns and Mark Osborne WEMO Photograph 006
Images, UC QuakeStudies
A photograph of the earthquake damage to the windows of the Concrete Club on Manchester Street.
Nic Johns and Mark Osborne WEMO Photograph 031
Images, UC QuakeStudies
A photograph of the earthquake damage to the windows of the Concrete Club on Manchester Street.
BeckerFraserPhotos May 2011 photograph 0916
Images, UC QuakeStudies
An exposed concrete wall.
BeckerFraserPhotos May 2011 photograph 0917
Images, UC QuakeStudies
An exposed concrete wall.
Rectangular RC walls under bi-directional loading: Recent experimental and…
Research papers, University of Canterbury Library
Following the recent earthquakes in Chile (2010) and New Zealand (2010/2011), peculiar failure modes were observed in Reinforced Concrete (RC) walls. These observations have raised a global concern on the contribution of bi-directional loading to these failure mechanisms. One of the failure modes that could potentially result from bidirectional excitations is out-of-plane shear failure. In this paper an overview of the recent experimental and numerical findings regarding out-of-plane shear failure in RC walls are presented. The numerical study presents the Finite Element (FE) simulation of wall D5-6 from the Grand Chancellor Hotel that failed in shear in the out-of-plane direction in the February 2011 Christchurch earthquake. The main objective of the numerical study was to investigate the reasons for this failure mode. The experimental campaign includes the recent experiments conducted in the Structural Engineering Laboratory of the University of Canterbury. The experimental study included three rectangular slender RC walls designed based on NZS3101: 2006-A3 (2017) for three different ductility levels, namely: nominally ductile, limited ductile and ductile. The numerical results showed that high axial load combined with bi-directional loading caused the out-of-plane shear failure in wall D5-6 from the Grand Chancellor Hotel. This was also confirmed and further investigated in the experimental phase of the study.
BeckerFraserPhotos March 2012 photograph 339
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "A concrete muncher on High Street looking towards Colombo Street".
BeckerFraserPhotos October 2011 photograph 354
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Concrete muncher".
BeckerFraserPhotos November 2011 photograph 079
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Gas bottles with concrete muncher behind, Armagh Street".
Sonja Farmer Photograph 55
Images, UC QuakeStudies
A photograph of members of the New Zealand Army demolishing a concrete block fence on a property in Christchurch.
Canterbury Earthquake September 2010 - Photograph 21
Images, UC QuakeStudies
Damage to a house in Richmond. Part of a concrete patio has slumped, leaving large cracks between slabs. The photographer comments, "Cracking in the concrete patio".
Banks Avenue, Richmond - Photograph 19
Images, UC QuakeStudies
A power pole on a lean is anchored by a large concrete block. The photographer comments, "Do these concrete weights really prevent poles from falling over?
BeckerFraserPhotos May 2011 photograph 0986
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Digger grasping a concrete beam while demolishing the former Druids Building, 239 Manchester Street".
Canterbury Earthquake September 2010 - Photograph 15
Images, UC QuakeStudies
Damage to a house in Richmond. Part of a concrete patio has slumped, leaving large cracks. The photographer comments, "The concrete patio is broken into big slabs".
BeckerFraserPhotos October 2011 photograph 360
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Demolition site of the Allan McLean building, on the corner of Colombo Street and Oxford Terrace. The PricewaterhouseCoopers building is behind. The green digger is feeding the yellow concrete muncher while the red digger redistributes the munched up concrete".
WEMO ERT Set 1 - March 2011 - Photograph 149
Images, UC QuakeStudies
A photograph of the earthquake damage to the concrete beams in a room in the PricewaterhouseCoopers Building. Sections of the concrete have crumbled to reveal the steel reinforcement underneath. A number of the ceiling panels are missing and another is hanging loose. Some of the bars that hold the ceiling panels are also hanging loose.
Canterbury Tales Photograph 2013:10:25 (2)
Images, UC QuakeStudies
A photograph of workers anchoring a frame with large concrete blocks in Re:START mall. The frame is for Canterbury Tales, the main event of FESTA 2013.
Natalie Kerschner WEMO Photograph 015
Images, UC QuakeStudies
A photograph of Argosy House on Victoria Street with concrete blocks stacked in front. Scaffolding has been constructed on the footpath in front.
Community Chess Photograph 1
Images, UC QuakeStudies
A photograph of a man and a child laying concrete at the site of the Gap Filler Community Chess project.
Monotonic and cyclic bond behaviour of deformed bars in reinforced concret…
Research papers, University of Canterbury Library
A major lesson from the 2011 Christchurch earthquake was the apparent lack of ductility of some lightly reinforced concrete (RC) wall structures. In particular, the structural behaviour of the critical wall in the Gallery Apartments building demonstrated that the inelastic deformation capacity of a structure, as well as potentially brittle failure of the reinforcement, is dependent on the level of bond deterioration between reinforcement and surrounding concrete that occurs under seismic loading. This paper presents the findings of an experimental study on bond behaviour between deformed reinforcing bars and the surrounding concrete. Bond strength and relative bond slip was evaluated using 75 pull-out tests under monotonic and cyclic loading. Variations of the experiments include the loading rate, loading history, concrete strength (25 to 70 MPa), concrete age, cover thickness, bar diameter (16 and 20 mm), embedded length, and the position of the embedded bond region within the specimen (deep within or close to free surface). Select test results are presented with inferred implications for RC structures.
Umut Akguzel Photograph 202
Images, UC QuakeStudies
A photograph of a flight of concrete stairs salvaged from a building and placed in a car park in the Christchurch central city. Steel reinforcement can be seen sticking out of the concrete.
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.