Detail of the side wall of St Mary & St Athanaslos church on Edgeware Road. The bricks at the top of the wall have crumbled, revealing the second layer of bricks inside.
A view of the interior of the Durham Street Methodist Church hall. The floor has been coated with plaster from the walls and ceiling, and items of furniture have been stacked up around the walls.
A photograph of a Christmas message written on the wall of a house at Cannon Hill Crescent in Mt Pleasant. Paper Christmas decorations have been stuck on the window above the wall.
Cracking in the plaster work of the side wall of a building in the central city. The bricks that make up the wall have shaken apart and are threatening to topple.
A photograph of a damaged building on Norwich Quay in Lyttelton. A section of brickwork on the side wall has crumbled leaving the inside space exposed. Security fencing has been placed around the damaged wall.
A spray-painted message on a wall of Englefield Lodge reads "We will try to save this house." Wooden bracing supports the wall. The photographer comments, "A bike ride around the CBD. Englefield, Christchurch's oldest house in Fitzgerald Ave".
A cracked concrete wall on Avonside Drive.
A photograph of a wall of a building on St Asaph Street which has collapsed onto the car park next door. Rubble and bricks from the top of the wall underneath have fallen on top.
The Gospel Way Outreach Church in the process of being demolished on Charles Street. Down the side wall, a noticeable slump in the brick wall can be seen. This is probably why the building needed to be demolished.
A view of the interior of the Durham Street Methodist Church hall. The floor has been coated with plaster from the walls and ceiling, and items of furniture have been stacked up around the walls.
Photograph captioned by BeckerFraserPhotos, "Cannon Hill Crescent, Mt Pleasant".
Photograph captioned by BeckerFraserPhotos, "Te Awakura Terrace".
Photograph captioned by BeckerFraserPhotos, "Te Awakura Terrace".
Photograph captioned by BeckerFraserPhotos, "Te Awakura Terrace, Mt Pleasant".
Detail of the side of the front wall of St Mary & St Athanaslos church on Edgeware Road, right side. Cracks can be seen running diagonally between the bricks. The top of the wall has crumbled onto the pavement below.
A photograph of a colourful wall of bricks. There is damage on the right hand side of the wall. There is also a pattern made from fallen bricks in front of it.
A photograph of a tag on a wall made of concrete blocks. The wall is near the railway tracks which run under the Durham Street over bridge. The tag reads, "JFK".
Damage to a house in Richmond. Part of the brick wall has slumped to one side, leaving a visible gap between the wall and a windowframe. Broken wooden framing can be seen in the gap. The photographer comments, "Cracking in the external brickwork".
Damage to a house in Richmond. Bricks have fallen from a wall, exposing the wooden framing beneath. The photographer comments, "The foundation and a section of the wall of the dining room have shifted and cracked. The dining room floor is very springy".
The connections between walls of unreinforced masonry (URM) buildings and flexible timber diaphragms are critical building components that must perform adequately before desirable earthquake response of URM buildings may be achieved. Field observations made during the initial reconnaissance and the subsequent damage surveys of clay brick URM buildings following the 2010/2011 Canterbury, New Zealand earthquakes revealed numerous cases where anchor connections joining masonry walls or parapets with roof or floor diaphragms appeared to have failed prematurely. These observations were more frequent for the case of adhesive anchor connections than for the case of through-bolt connections (i.e. anchorages having plates on the exterior façade of the masonry walls). Subsequently, an in-field test program was undertaken in an attempt to evaluate the performance of adhesive anchor connections between unreinforced clay brick URM walls and roof or floor diaphragm. The study consisted of a total of almost 400 anchor tests conducted in eleven existing URM buildings located in Christchurch, Whanganui and Auckland. Specific objectives of the study included the identification of failure modes of adhesive anchors in existing URM walls and the influence of the following variables on anchor load-displacement response: adhesive type, strength of the masonry materials (brick and mortar), anchor embedment depth, anchor rod diameter, overburden level, anchor rod type, quality of installation and the use of metal foil sleeve. In addition, the comparative performance of bent anchors (installed at an angle of minimum 22.5o to the perpendicular projection from the wall surface) and anchors positioned horizontally was investigated. Observations on the performance of wall-to-diaphragm connections in the 2010/2011 Canterbury earthquakes and a snapshot of the performed experimental program and the test results are presented herein. http://hdl.handle.net/2292/21050
A photograph of a plywood wall around Knox Church.
A photograph of a damaged wall braced with wood.
A photograph of a plywood wall around Knox Church.
The collapsed brick wall of a house in Christchurch.
The collapsed brick wall on a house in Christchurch.
A photograph of a damaged wall braced with wood.
A photograph of a damaged wall braced with wood.
A retaining wall on Sumner Road in Lyttelton that is made from local volcanic stone. A section of the wall has collapsed during the 22 February 2011 earthquake, and the bricks cleared away since. A road cone has been placed by the slip to warn drivers.
A collapsed brick wall on Halswell Junction Road. A stack of bricks have been saved by the tree which has grown in a curve and is resting on the wall, holding the bricks in place. A pile of bricks can be seen on the ground where they fell.
A photograph of the interior of a USAR station in Latimer Square. Boxes of supplies are stacked along the walls and keys are hanging on a board. The station is made up of wooden struts with a tarpaulin roof and walls.