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Photograph by Jocelyn Kinghorn 409
Images, UC QuakeStudies
Damage to an apartment complex on Durham Street. The building has collapsed on the ground floor level.
BeckerFraserPhotos July 2011 photograph 1181
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "Hotel Grand Chancellor. Structural damage on the ground floor".
BeckerFraserPhotos February 2011 photograph 448
Images, UC QuakeStudies
Plaster, dust and offcuts of wood scattered on the floor of the Durham Street Methodist Church.
Photograph of Gap Filler project 15 (16)
Images, UC QuakeStudies
A volunteer painting sheets of wood for the dance floor of Gap Filler's "Dance-O-Mat".
Photograph by Eroica Ritchie 088
Images, UC QuakeStudies
A staff member cleaning up fallen jars and burst bags from the floor of Piko Wholefoods.
Under the ground, over the ground and under the floor
Articles, Christchurch uncovered
Underfloor deposits are as exasperating as they are exciting. Exasperating because the context is not particularly secure: objects usually accumulate under a house over time (thrown or swept from the outside, lost or dropped between the floorboards, dragged in by … Continue reading →
Umut Akguzel Photograph 042
Images, UC QuakeStudies
A photograph of cracks in the floor of an earthquake-damaged building at the University of Canterbury.
Umut Akguzel Photograph 040
Images, UC QuakeStudies
A photograph of cracks in the floor of an earthquake-damaged building at the University of Canterbury.
Umut Akguzel Photograph 041
Images, UC QuakeStudies
A photograph of cracks in the floor of an earthquake-damaged building at the University of Canterbury.
Photograph number UC 11-0102-35
Images, UC QuakeStudies
Earthquake damage in a Commerce office on campus, papers fallen on the floor, and a filing cabinet toppled.
CTV survivor talks about the earthquake service
Audio, Radio New Zealand
It's been a year since Pip Ranby was rescued from the top floor of the five storey Canterbury Television building.
BeckerFraserPhotos July 2011 photograph 959
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "First floor of a collapsed building at 143 Manchester Street".
Photograph by Jocelyn Kinghorn 525
Images, UC QuakeStudies
Sticky Fingers Restaurant & Bar, on the ground floor of the Clarendon Tower, seen from across from the Avon river.
Umut Akguzel Photograph 039
Images, UC QuakeStudies
A photograph of a crack in the floor of an earthquake-damaged building at the University of Canterbury.
Photograph number UC 11-0128-23
Images, UC QuakeStudies
Insulation waiting to be installed into the floor of one of the temporary classrooms in the Ilam Oval.
BeckerFraserPhotos February 2011 photograph 474
Images, UC QuakeStudies
Pieces of decorative stonework that have been arranged on the floor of the Durham Street Methodist Church.
Photograph of Gap Filler project 15 (17)
Images, UC QuakeStudies
A volunteer painting a sheet of wood for the dance floor of Gap Filler's "Dance-O-Mat".
Photograph of Gap Filler project 15 (18)
Images, UC QuakeStudies
A volunteer painting a sheet of wood for the dance floor of Gap Filler's "Dance-O-Mat".
Photograph of Gap Filler project 15 (13)
Images, UC QuakeStudies
A volunteer painting a sheet of wood for the dance floor of Gap Filler's "Dance-O-Mat".
Photograph of Gap Filler project 15 (14)
Images, UC QuakeStudies
A volunteer painting a sheet of wood for the dance floor of Gap Filler's "Dance-O-Mat".
old iMac down
Images, eqnz.chch.2010
(It was already opened up mid-way through a repair. But it wasn't on the floor!)
Photograph number UC 11-0090-16
Images, UC QuakeStudies
A worker inserts glue between the insulation panels in the floor of one of the temporary buildings on the Ilam Oval.
Photograph number UC 11-0133-07
Images, UC QuakeStudies
Piles in the ground, waiting for the floors of temporary classrooms to be built on top, on the Ilam Oval.
Photograph by Jocelyn Kinghorn 1765
Images, UC QuakeStudies
The multi-storey Pacific Brands building on Victoria Street has been cordoned off. The Cranfield shop occupied the first floor.
Canterbury Earthquake - Rob Clark
Audio, Radio New Zealand
Rob Clark was on the sixth floor of his office building when the quake struck, and got stuck in gridlock leaving the CBD.
Photograph by Eroica Ritchie 089
Images, UC QuakeStudies
A staff member takinga photograph of grains and beans fallen from bags onto the floor of Piko Wholefoods.
Photograph number UC 10-0514-03
Images, UC QuakeStudies
The Copy Centre operating out of a space at the ground floor of the UCSA building, adjacent to the food court.
BeckerFraserPhotos February 2012 photograph 0314
Images, UC QuakeStudies
A photograph captioned by BeckerFraserPhotos, "5 Poplar Street with damage from 23 December 2011 on the second floor".
Photo by Jennifer Middendorf 054
Images, UC QuakeStudies
A computer tipped over and files fallen on the floor in the English department office after the 23 December 2011 earthquake.
Assessing the impact of wall uplift on the critical failure mechanism of h…
Research papers, University of Canterbury Library
Floor systems with precast concrete hollow-core units have been largely used in concrete buildings built in New Zealand during the 1980’s. Recent earthquakes, such as the Canterbury sequence in 2010-2011 and the Kaikoura earthquake in 2016, highlighted that this floor system can be highly vulnerable and potentially lead to the floor collapse. A series of research activities are in progress to better understand the seismic performance of floor diaphragms, and this research focuses on examining the performance of hollow core units running parallel to the walls of wall-resisting concrete structures. This study first focused on the development of fragility functions, which can be quickly used to assess likelihood of the hollow-core being able to survive given the buildings design drift, and secondly to determine the expected performance of hollow-core units that run parallel to walls, focusing on the alpha unit running by the wall. Fragility functions are created for a range of different parameters for both vertical dislocation and crack width that can be used as the basis of a quick analysis or loss estimation for the likely impact of hollow-core floors on building vulnerability and risk. This was done using past experimental tests, and the recorded damage. Using these results and the method developed by Baker fragility curves were able to be created for varying crack widths and vertical dislocations. Current guidelines for analysis of hollow-core unit incompatible displacements are based on experimental vertical displacement results from concrete moment resisting frame systems to determine the capacity of hollow-core elements. To investigate the demands on hollow-core units in a wall-based structure, a fibre-element model in the software Seismostruct is created and subject to quasi-static cyclic loading, using elements which are verified from previous experimental tests. It is shown that for hollow-core units running by walls that the 10 mm displacement capacity used for hollow-core units running by a beam is insufficient for members running by walls and that shear analysis should be used. The fibre-element model is used to simulate the seismic demand induced on the floor system and has shown that the shear demand is a function of drift, wall length, hollow-core span, linking slab length and, to a minor extent, wall elongation.