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Type: Conference paper
Title: Performance of earthquake strengthened URM buildings in the 2010/2011 Christchurch earthquake sequence
Author: Ingham, J.
Dizhur, D.
Moon, L.
Griffith, M.
Citation: Proceedings of the 15th International Brick and Block Masonry Conference, 2012; pp.1-19
Issue Date: 2012
ISBN: 9788563273093
Conference Name: International Brick and Block Masonry Conference (15th : 2012 : Florianopolis, Brazil)
Statement of
Jason M Ingham, D. Dizhur, L.M. Moon, M.C. Griffith
Abstract: Following the 22 February 2011 Christchurch earthquake a comprehensive damage survey of the unreinforced masonry (URM) building stock of Christchurch city, New Zealand was undertaken. Because of the large number of aftershocks associated with both the 2011 Christchurch earthquake and the earlier 4 September 2010 Darfield earthquake, and the close proximity of their epicentres to Christchurch city, this earthquake sequence presented a unique opportunity to assess the performance of URM buildings and the various strengthening methods used in New Zealand to increase the performance of these buildings in earthquakes. Because of the extent of data that was collected, a decision was made to initially focus exclusively on the earthquake performance of URM buildings located in the central business district (CBD) of Christchurch city. The main objectives of the data collection exercise were to document building characteristics and any seismic strengthening methods encountered, and correlate these attributes with observed earthquake damage. In total 370 URM buildings in the CBD were surveyed. Of the surveyed buildings, 62% of all URM buildings had received some form of earthquake strengthening and there was clear evidence that installed earthquake strengthening techniques in general had led to reduced damage levels. The procedure used to collect and process information associated with earthquake damage, general analysis and interpretation of the available survey data for the 370 URM buildings, the performance of earthquake strengthening techniques, and the influence of earthquake strengthening levels on observed damage are reported within.
Rights: Copyright: the author(s)
RMID: 0020127223
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Appears in Collections:Civil and Environmental Engineering publications

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