A crack in a wall of the University of Canterbury Electronic Learning Media team's offices. The photographer comments, "Cracks in the Project Office walls".
Bricks and a window frame fallen from the wall of a single-storey building. The gap left by the fallen wall has been covered with plywood sheeting.
The 2010-2011 Christchurch earthquakes generated damage in several Reinforced Concrete (RC) buildings, which had RC walls as the principal resistant element against earthquake demand. Despite the agreement between structural engineers and researchers in an overall successfully performance there was a lack of knowledge about the behaviour of the damaged structures, and even deeper about a repaired structure, which triggers arguments between different parties that remains up to these days. Then, it is necessary to understand the capacity of the buildings after the earthquake and see how simple repairs techniques improve the building performance. This study will assess the residual capacity of ductile slender RC walls according to current standards in New Zealand, NZS 3101.1 2006 A3. First, a Repaired RC walls Database is created trying to gather previous studies and to evaluate them with existing international guidelines. Then, an archetype building is designed, and the wall is extracted and scaled. Four half-scale walls were designed and will be constructed and tested at the Structures Testing Laboratory at The University of Auckland. The overall dimensions are 3 [m] height, 2 [m] length and 0.175 [m] thick. All four walls will be identical, with differences in the loading protocol and the presence or absence of a repair technique. Results are going to be useful to assess the residual capacity of a damaged wall compare to the original behaviour and also the repaired capacity of walls with simpler repair techniques. The expected behaviour is focussed on big changes in stiffness, more evident than in previously tested RC beams found in the literature.
A crumbling wall of the Cramner Courts. The wall's collapse has exposed the thick, unreinforced masonry that it is made of.
The collapsed rear wall of a building on Armagh Street. The bricks and timber from the wall have spilled onto the section's lawn.
A house on Montreal Street with a damaged side wall, the front layer of bricks fallen away to expose the wall underneath.
Damage to a building in Bedford Row. One wall has collapsed, and there are large cracks in the brickwork of the other visible wall.
A volunteer on top of one of the Pallet Pavilion walls during construction. Scaffolding has been constructed around the wall out of wood.
A volunteer on top of one of the Pallet Pavilion walls during construction. Scaffolding has been constructed around the wall out of wood.
A photograph of the earthquake damage to a brick wall at the entrance to a property on Gayhurst Road.
The side wall of a building on Worcester Street. Timber bracing has been placed along the top of the wall and black plastic to cover the gaps.
A photograph of a row of images of faces pasted on a wall. The photograph is captioned by Paul Corliss, "Ferrymead, wall between Tidal View and Ferry Road".
A photograph of a row of images of faces pasted on a wall. The photograph is captioned by Paul Corliss, "Ferrymead, wall between Tidal View and Ferry Road".
Damage to a building on Ferry Road. The side walls have partially collapsed, and part of the brick wall is bowing outwards in danger of further collapse.
Damage to a building on Ferry Road. The side walls have partially collapsed, and part of the brick wall is bowing outwards in danger of further collapse.
A photograph of a row of images of faces pasted on a wall. The photograph is captioned by Paul Corliss, "Ferrymead, wall between Tidal View and Ferry Road".
A photograph of a row of images of faces pasted on a wall. The photograph is captioned by Paul Corliss, "Ferrymead, wall between Tidal View and Ferry Road".
A painting rests against the wall of the Durham Street Methodist Church. Chips of plaster from the building's walls have fallen around it.
A photograph of a row of images of faces pasted on a wall. The photograph is captioned by Paul Corliss, "Ferrymead, wall between Tidal View and Ferry Road".
An exposed concrete wall.
An exposed concrete wall.
Part of Maffeys Road around McCormacks Bay has collapsed.
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.
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".
Photograph captioned by BeckerFraserPhotos, "Menlo Terrace".
A photograph captioned by Paul Corliss, "Avonside and Retreat Roads post earthquake".
A photograph of a postal worker delivering mail on a street with damaged houses. The photograph is captioned by Paul Corliss, "Redcliffs and Sumner".
The brick wall of a building in Redcliffs that has cracked and fallen away in some places. Sections of the wall have buckled out from the building's structure.
Detail of damage to a building on Ferry Road. The side walls have partially collapsed, and part of the brick wall is bowing outwards in danger of further collapse.
Damage to Weston House on Park Terrace. The front wall of those house has crumbled into the garden below. USAR codes have been spray-painted on the brick wall.