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Images for damaged houses; more images...

Videos, UC QuakeStudies

A video of an interview with Helen and Edna Yates about their Worcester Street house which is to be demolished due to earthquake damage. The 96-year-old identical twins lived in the house for 95 years before it was damaged in the 22 February 2011 earthquake. The video includes footage of Helen and Edna visiting the house before it is demolished.

Research papers, University of Canterbury Library

Very little research exists on total house seismic performance. This testing programme provides stiffness and response data for five houses of varying ages including contributions of non-structural elements. These light timber framed houses in Christchurch, New Zealand had minor earthquake damage from the 2011 earthquakes and were lateral load tested on site to determine their strength and stiffness, and preliminary damage thresholds. Dynamic characteristics were also investigated. Various loading schemes were utilised including quasi-static loading above the foundation, unidirectional loading through the floor diaphragm, cyclic quasi-static loading and snapback tests. Dynamic analysis on two houses provided the seismic safety levels of post-quake houses with respect to local hazard levels. Compared with New Zealand Building Standards all the tested houses had an excess of strength, damage is a significant consideration in earthquake resilience and was observed in all of the houses. A full size house laboratory test is proposed.