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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

A photograph of the Cranmer Courts on the corner of Kilmore and Montreal Streets. Parts of a chimney and masonry lie on the footpath. The damaged gable and roof have been covered by tarpaulins to help prevent weather damage to the inside.

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, eqnz.chch.2010

The September Canterbury earthquake. These pictures were taken of Colombo Street in Sydenham. A lot of masonry in this area has been damaged/fallen down. Monumental masons is a gravestone maker. Note: these photos were taken on a cellphone; mind the quality.

Images, eqnz.chch.2010

The September Canterbury earthquake. These pictures were taken of Colombo Street in Sydenham. A lot of masonry in this area has been damaged/fallen down. This was a headstone makers store. Note: these photos were taken on a cellphone; mind the quality.