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Research papers, The University of Auckland Library

Test results are presented for wall-diaphragm plate anchor connections that were axially loaded to rupture. These connection samples were extracted post-earthquake by sorting through the demolition debris from unreinforced masonry (URM) buildings damaged in the Christchurch earthquakes. Unfortunately the number of samples available for testing was small due to the difficulties associated with sample collection in an environment of continuing aftershocks and extensive demolition activity, when personal safety combined with commercial activity involving large demolition machinery were imperatives that inhibited more extensive sample collection for research purposes. Nevertheless, the presented data is expected to be of assistance to structural engineers undertaking seismic assessment of URM buildings that have existing wall-diaphragm anchor plate connections installed, where it may be necessary to estimate the capacity of the existing connection as an important parameter linked with determining the current seismic capacity of the building and therefore influencing the decision regarding whether supplementary connections should be installed.

Audio, Radio New Zealand

Christchurch residents will gather today to mark the 10 year anniversary of the Christchurch Earthquake. Large crowds are expected from half past twelve this afternoon on the lawn just across the river from the memorial wall where a service begin at 12.30. Among those speaking is the prime minister, Jacinda Ardern. A message from former mayor, Sir Bob Parker, will be also read out. The names of the 185 who died will be read before a minute's silence at twelve fifty one, the exact moment the quake struck. Flowers will then be laid at the memorial wall. This is where our coverage began .A warning this is confronting audio of events that day.

Images, UC QuakeStudies

Large cracks run through the brick cladding of this house in Wainoni. The photographer comments, "During the numerous earthquakes in Christchurch the land which ran alongside the Avon river on Avonside Drive slumped towards the waterway. Houses which were wooden framed and had an external brick veneer started to sink into the liquefied soil. This caused the brick walls to crack, but the houses' occupants though shook up were saved by the wooden framework from the houses collapsing on them".

Images, eqnz.chch.2010

This shop at the Colombo Street / Tuam Street corner lost its side wall in the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, eqnz.chch.2010

This shop at the Colombo Street / Tuam Street corner lost its side wall in the magnitude 7.1 earthquake that struck Christchurch on Saturday 4 September 2010.

Images, UC QuakeStudies

A brick building supported by shipping containers on Colombo Street. The side wall of the building has been revealed by the demolition of the adjoining building. Security fences have been placed around the building to restrict access.

Images, UC QuakeStudies

A photoshopped image of the front of the cathedral with its broken tower. The upper part of the front wall has crumbled completely, exposing the inside space. Security fences have been placed around the building to restrict access.

Images, UC QuakeStudies

The Octagon Live Restaurant, formerly the Trinity Congregational Church, on the corner of Worcester and Manchester Streets. There has been considerable damage to the front wall, and wire fencing has been placed around the building.

Images, UC QuakeStudies

Army presence outside the city cordon on Tuam Street. Road cones and cordon fencing have been placed around damaged buildings. In the background is a building where the walls have crumbled, exposing the interior of the building.

Images, UC QuakeStudies

A photograph of earthquake damage to the Crown Masonic Lodge on Wordsworth Street, also known as the Freemasons Centre. The entranceway is supported with wooden bracing, and part of the brick wall beside the entrance has collapsed.