BeckerFraserPhotos March 2012 photograph 236

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Gough House on Hereford Street. The DIA Building to the left is already soft stripped and ready for demolition".

Natalie Kerschner WEMO Photograph 031

Images, UC QuakeStudies

A photograph of the Cranmer Courts on the corner of Kilmore and Montreal Streets. Tiles have been stripped off the roof by a chimney which fell during the 4 September 2010 earthquake.

BeckerFraserPhotos March 2011 photograph 044

Images, UC QuakeStudies

Wood and pink insulation batts on Canterbury Street in Lyttelton. This construction material has been stripped from the exterior of a house.

BeckerFraserPhotos December 2011 photograph 0288

Images, UC QuakeStudies

An aerial photograph of Hereford Street and Cathedral Square. The photograph has been captioned by BeckerFraserPhotos, "Hereford Street running across the foreground of this photograph, with Cathedral Square above. The IBIS Hotel and the ANZ Bank are staying, while the BNZ is currently being soft-stripped. Christ Church Cathedral officially has a status of 'partial demolish'".

BeckerFraserPhotos November 2011 photograph 132

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Fleet House is between the demolition sites of Kenton Chambers and Manchester Courts. It is being set up for demolition now - with material being stripped out of it and fill laid upon the footpath".

BeckerFraserPhotos December 2011 photograph 0400

Images, UC QuakeStudies

An aerial photograph of a residential area in Burwood. The photograph has been captioned by BeckerFraserPhotos, "Anzac Drive Bridge over the River Avon at the top of the photograph. Hulverstone Drive and New Brighton Road are prominent in this photograph. The land beside the river is red-zoned with a green-zoned strip alongside Anzac Drive".

Shake table testing of retrofitted clay brick masonry chimneys

Research papers, The University of Auckland Library

An UnReinforced clay brick Masonry (URM) chimney is composed of a cantilever URM appendage above a roofline and is considered one of the most earthquake prone non-structural compo¬nents within vintage URM and timber-framed buildings. Observations from past earthquakes including the 1992 Big Bear City earthquake, 1994 Northridge earthquake, 2001 Nisqually earthquake, 2010/2011 Canterbury earthquakes, 2012 Northern Italy earthquakes, and 2014 South Napa earthquake served repeatedly as a reminder of the hazard induced by URM chimneys. The observed failure types included several cases where the adopted retrofit techniques were not adequate to effectively secure chimneys dur¬ing the earthquake. Data collected during the 2010/2011 post-earthquake building assessments in Christchurch and insur¬ance claims are reported herein. Five full-scale solid clay brick URM chimneys which replicated the most encountered geometrical and construction characteristics were subjected to shake table testing. Two chim¬ney samples were representative of the as-built conditions, while three samples were retrofitted using two different configurations of Near-Surface-Mounted (NSM) Carbon-Fibre-Reinforced-Polymer (CFRP) strips and post-tensioning techniques. The adopted securing techniques allowed an increase in seismic acceleration capacity of more than five times for chimneys constructed with ultra-weak mortar and more than twice for chimneys built with weak mortar. http://www.16ibmac.com/