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Images, UC QuakeStudies

Damage to the Community of the Sacred Name building on Barbadoes Street. The gable ends of the building have collapsed, and bricks have fallen to the footpath below. The building is surrounded by security fencing. The photographer comments, "A bike ride around the CBD. Nunnery, Barbadoes St".

Images, UC QuakeStudies

Bricks from a demolished chimney lie on top of thick liquefaction silt in front of a house in St Albans. The photographer comments, "Our friend Chris Hutching's house. The front lawn and carport have 30cm or more of silt piled on top. He also had to remove a shaky chimney".

Images, UC QuakeStudies

Bricks from a demolished chimney lie on top of thick liquefaction silt in front of a house in St Albans. The photographer comments, "Our friend Chris Hutching's house. The front lawn and carport have 30cm or more of silt piled on top. He also had to remove a shaky chimney".

Images, UC QuakeStudies

Damage to the Crichton Cobbers Youth and Community Club. Large sections of the brick walls have collapsed, and two large beams lie across the rubble. Cordon fencing surrounds this and nearby buildings. The photographer comments, "A bike ride around the CBD. Old brewery, later a gym - Fitzgerald Ave".

Images, UC QuakeStudies

Damage to the Crichton Cobbers Youth and Community Club. Large sections of the brick walls have collapsed, and two large beams lie across the rubble. Cordon fencing surrounds this and nearby buildings. The photographer comments, "A bike ride around the CBD. Old brewery, later a gym - Fitzgerald Ave".

Images, UC QuakeStudies

Damage to a house in Richmond. Bricks have fallen from the walls, exposing the wooden framing beneath. Power lines between the house and a power pole have been stretched taut. The photographer comments, "The house and power pole have moved, stretching power lines taut as a guitar string".

Images, UC QuakeStudies

Damage to a house in Richmond. Bricks have fallen from a wall, and there is a visible gap between the foundation and the surrounding ground. 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".

Images, UC QuakeStudies

Internal damage to a house in Richmond. A large crack in the wallboard below a window has exposed the bricks, and the skirting board has moved away from the floor. The photographer comments, "Cracks in the wall of the sunroom. This is the interior view of the crack in the previous shot".

Images, UC QuakeStudies

The damaged Ozone Hotel on Marine Parade. Fallen bricks lie on the ground in front of the building, which is surrounded by security fencing. The photographer comments, "A bike ride to New Brighton and the beach 3 weeks after the Feb 22 quake. Roads were still very rough and under reconstruction. Some buildings are still standing. but don't look too healthy".

Images, UC QuakeStudies

Damage to Englefield Lodge on Fitzgerald Avenue. A pile of bricks lies in front of the house, windows are boarded up, and wooden bracing is propping up the walls. A spray-painted message on a wall reads "We will try to save this house." The photographer comments, "A bike ride around the CBD. Englefield, Christchurch's oldest house, in Fitzgerald Ave".

Images, UC QuakeStudies

Damage to a residential property in Richmond. The brick wall of the garage has collapse inward, and the roof fallen in on top of it. The photographer comments, "These photos show our old house in River Rd and recovery work around Richmond and St Albans. The neighbours behind us used the kayak to get in to their house - it's flooded by Dudley Creek which runs behind the block, plus major liquefaction. Our old garage provides a good spot to park it".

Research papers, The University of Auckland Library

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