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Koen Broekema's Photograph 045
Images, UC QuakeStudies
A demolition site where loose cables hang from the roof. A small piece of concrete is attached to one of cables.
Koen Broekema's Photograph 048
Images, UC QuakeStudies
A demolition site where loose cables hang from the roof. A small piece of concrete is attached to one of cables.
BeckerFraserPhotos February 2012 photograph 0190
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "Retaining walls at the port, where the historic stone covering the concrete has collapsed".
Koen Broekema's Photograph 030
Images, UC QuakeStudies
A close up of a partially demolished building. The concrete posts have been kept intact by the reinforcement cable which runs through them.
Koen Broekema's Photograph 025
Images, UC QuakeStudies
A close up of a partially demolished building. The concrete posts have been kept intact by the reinforcement cable which runs through them.
BeckerFraserPhotos February 2012 photograph 0639
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "A digger working up high on the Gallery Apartments, drilling holes in the concrete slabs".
BeckerFraserPhotos February 2012 photograph 1009
Images, UC QuakeStudies
A photograph of a concrete mixer. The photograph is captioned by BeckerFraserPhotos, "The old and the new in Colombo Street".
BeckerFraserPhotos February 2012 photograph 0170
Images, UC QuakeStudies
A photograph of large bags of concrete supporting a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
Koen Broekema's Photograph 053
Images, UC QuakeStudies
An excavator sits on top of a partially demolished building. The concrete posts have been kept intact by the reinforcement cable which runs through them.
Koen Broekema's Photograph 044
Images, UC QuakeStudies
An excavator sits on top of a partially demolished building. The concrete posts have been kept intact by the reinforcement cable which runs through them.
BeckerFraserPhotos February 2012 photograph 0173
Images, UC QuakeStudies
A photograph of a bird painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
Does Autumn Colours Help Disguise the Damage?
Images, UC QuakeStudies
A digitally manipulated image of a damaged fence. Concrete blocks have fallen from the wall leaving a large gap, through which autumn leaves are visible.
BeckerFraserPhotos May 2012 photograph 048
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "A large pile of concrete rubble from a demolition site in Kilmore Street. Forsyth Barr building in the background".
BeckerFraserPhotos February 2012 photograph 0172
Images, UC QuakeStudies
A photograph of a blind mouse painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
BeckerFraserPhotos June 2012 photograph 088
Images, UC QuakeStudies
Photograph captioned by BeckerFraserPhotos, "Remaining crushed concrete rubble on the site of the Hotel Grand Chancellor, Cashel Street. Te Waipounamu in the background (to be demolished)".
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".
Photograph by Jocelyn Kinghorn 2244
Images, UC QuakeStudies
The vacant lot left after the demolition of St. John's Anglican Church on Latimer Square. On site is a shipping container, and next to it looks like a pile of recyclable concrete pieces.
Bond and shear mechanics within reinforced concrete beam-column joints inc…
Research papers, University of Canterbury Library
The recent earthquakes in Christchurch have made it clear that issues exist with current RC frame design in New Zealand. In particular, beam elongation in RC frame buildings was widespread and resulted in numerous buildings being rendered irreparable. Design solutions to overcome this problem are clearly needed, and the slotted beam is one such solution. This system has a distinct advantage over other damage avoidance design systems in that it can be constructed using current industry techniques and conventional reinforcing steel. As the name suggests, the slotted beam incorporates a vertical slot along part of the beam depth at the beam-column interface. Geometric beam elongation is accommodated via opening and closing of these slots during seismically induced rotations, while the top concrete hinge is heavily reinforced to prevent material inelastic elongation. Past research on slotted beams has shown that the bond demand on the bottom longitudinal reinforcement is increased compared with equivalent monolithic systems. Satisfying this increased bond demand through conventional means may yield impractical and economically less viable column dimensions. The same research also indicated that the joint shear mechanism was different to that observed within monolithic joints and that additional horizontal reinforcement was required as a result. Through a combination of theoretical investigation, forensic analysis, and database study, this research addresses the above issues and develops design guidelines. The use of supplementary vertical joint stirrups was investigated as a means of improving bond performance without the need for non-standard reinforcing steel or other hardware. These design guidelines were then validated experimentally with the testing of two 80% scale beam-column sub-assemblies. The revised provisions for bond within the bottom longitudinal reinforcement were found to be adequate while the top longitudinal reinforcement remained nominally elastic throughout both tests. An alternate mechanism was found to govern joint shear behaviour, removing the need for additional horizontal joint reinforcement. Current NZS3101:2006 joint shear reinforcement provisions were found to be more than adequate given the typically larger column depths required rendering the strut mechanism more effective. The test results were then used to further refine design recommendations for practicing engineers. Finally, conclusions and future research requirements were outlined.
BeckerFraserPhotos February 2012 photograph 0174
Images, UC QuakeStudies
A photograph of a Nero playing while Rome burns, painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
BeckerFraserPhotos April 2012 photograph 226
Images, UC QuakeStudies
The MedLab building on Kilmore Street. Many of the windows are open or have been broken. Inside, ceiling tiles are missing and swaths of fabric hang from concrete beams.
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 0177
Images, UC QuakeStudies
A photograph of graffiti reading, "City Council cares, yeah right", painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
Photograph of Gap Filler project 22 (65)
Images, UC QuakeStudies
Volunteers using a crane to lay down slabs of concrete on the site of the demolished Crowne Plaza hotel. These slabs will serve as the floor of the Pallet Pavilion.
BeckerFraserPhotos February 2012 photograph 0178
Images, UC QuakeStudies
A photograph of a blue moon 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 0171
Images, UC QuakeStudies
A photograph of a train painted on a concrete block in a retaining wall, alongside the words, "The gravy train". The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
BeckerFraserPhotos February 2012 photograph 0176
Images, UC QuakeStudies
A photograph of an opera singer singing the words "Cera, cera", painted on a concrete block in a retaining wall. The photograph is captioned by BeckerFraserPhotos, "Cunningham Terrace, Lyttelton".
The Earthquake Worms
Images, UC QuakeStudies
A digitally manipulated photograph of twisted reinforcing rods amongst the rubble from the demolition of QEII. The photographer comments, "These rarely seen worms live in the pressurised earth under the foundations of buildings. They need a damp soil and be under at least 100 pounds of pressure per square inch. After the destructive force of an earthquake they swiftly rise to the surface through gaps in the rubble. Unfortunately they quickly die and then crystallise as hard as iron in the dry low pressure air".
Bettina Evans's photograph 100
Images, UC QuakeStudies
Patchwork quilts wrapped around the concrete slabs used to stabilise a broken wall on Winchester Street. They make it look snug despite the snow. Many projects like this have cropped up around Canterbury in an effort to brighten the earthquake environment.
BeckerFraserPhotos February 2012 photograph 0169
Images, UC QuakeStudies
A photograph of a house with retaining walls supported by large bags of concrete. The photograph is captioned by BeckerFraserPhotos, "On the corner of Ticehurst Road and Bridle Path, Lyttelton".
Photograph by Jocelyn Kinghorn 2391
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, with a pile of concrete blocks next to the cathedral.