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Research papers, The University of Auckland Library

The sequence of earthquakes that has greatly affected Christchurch and Canterbury since September 2010 has again demonstrated the need for seismic retrofit of heritage unreinforced masonry buildings. Commencing in April 2011, the damage to unreinforced stone masonry buildings in Christchurch was assessed and recorded with the primary objective being to document the seismic performance of these structures, recognising that they constitute an important component of New Zealand’s heritage architecture. A damage statistics database was compiled by combining the results of safety evaluation placarding and post-earthquake inspections, and it was determined that the damage observed was consistent with observations previously made on the seismic performance of stone masonry structures in large earthquakes. Details are also given on typical building characteristics and on failure modes observed. Suggestions on appropriate seismic retrofit and remediation techniques are presented, in relation also to strengthening interventions that are typical for similar unreinforced stone masonry structures in Europe.

Images, UC QuakeStudies

Damage to TJ's Kazbah in New Brighton. The east and north walls and part of the upper floor have collapsed, tipping rubble and the contents of the rooms out onto the street. The photographer comments, "The occupants of the business and rooms all managed to escape alive. A digger was used to make the building safe and then used to sift through the rubble for any surviving belongings. It was a very emotional time for the ex-occupants".

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Courts on the corner of Montreal and Kilmore Streets. A large section of the building has crumbled, masonry spilling onto the footpath below. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Courts on the corner of Montreal and Kilmore Streets. A large section of the building has crumbled, masonry spilling onto the footpath below. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

A photograph of the badly-damaged John Bull Cycles building on the corner of Colombo Street and Tuam Street. Most of the building's facade has fallen away and it has been cordoned off with wire fencing. Signs indicating that the business has relocated can be seen in the window.

Images, UC QuakeStudies

A photograph of earthquake damage to a building on the corner of Tuam Street and Madras Street. The top corner of the façade has crumbled, and the bricks have fallen onto the footpath below. The building has been cordoned off by wire fencing and the road is closed.

Images, UC QuakeStudies

A photograph looking east along Tuam Street towards the intersection of Colombo Street. The badly-damaged Bean Bags and Beyond building at 626 Colombo Street can be seen on the right hand side. In front of it is the remains of the Leather Direct building (615 Colombo Street).

Images, UC QuakeStudies

Civil Defence staff walking down Durham Street, a fire engine behind them. Beside them, the damaged Provincial Council Legislative Chamber can be seen. The building's roof and walls have collapsed, as has the scaffolding that had been erected to repair it after the 4 September 2010 earthquake.

Images, UC QuakeStudies

A photograph of the badly-damaged Coachman Inn on Gloucester Street. Parts of the roof have fallen away and there are many cracks in the building. Bricks and rubble have fallen onto the footpath and road below and wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

Damage to the church hall of St John the Baptist Church in Latimer Square. The roof has been weather proofed with plywood and there are cracks in the buildings masonry. The remains of fallen bricks can be seen on the footpath. A safety fence has been erected around the building.

Images, UC QuakeStudies

Damage to the church hall of St John the Baptist Church in Latimer Square. The roof has been weather proofed with plywood and there are cracks in the buildings masonry. The remains of fallen bricks can be seen on the footpath. A safety fence has been erected around the building.