Performance evaluation of CWH base isolated building during two major earthquakes in Christchurch
Item
Title (Dublin Core)
en-US
Performance evaluation of CWH base isolated building during two major earthquakes in Christchurch
Description (Dublin Core)
en-US
The seismic performance and parameter identification of the base isolated Christchurch Women’s Hospital (CWH) building are investigated using the recorded seismic accelerations during the two large earthquakes in Christchurch. A four degrees of freedom shear model is applied to characterize the dynamic behaviour of the CWH building during these earthquakes. A modified Gauss-Newton method is employed to identify the equivalent stiffness and Rayleigh damping coefficients of the building. The identification method is first validated using a simulated example structure and finally applied to the CWH building using recorded measurements from the Mw 6.0 and Mw 5.8 Christchurch earthquakes on December 23, 2011. The estimated response and recorded response for both earthquakes are compared with the cross correlation coefficients and the mean absolute percentage errors reported. The results indicate that the dynamic behaviour of the superstructure and base isolator was essentially within elastic range and the proposed shear linear model is sufficient for the prediction of the structural response of the CWH Hospital during these events.
Creator (Dublin Core)
Zhou, Cong
Chase, J. Geoffrey
Rodgers, Geoffrey W.
Kuang, Adam
Gutschmidt, Stefanie
Xu, Chao
Publisher (Dublin Core)
en-US
New Zealand Society for Earthquake Engineering
Date (Dublin Core)
2015-12-31
Type (Dublin Core)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
en-US
Article
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/128
10.5459/bnzsee.48.4.264-273
Source (Dublin Core)
en-US
Bulletin of the New Zealand Society for Earthquake Engineering; Vol 48 No 4 (2015); 264-273
2324-1543
1174-9857
Language (Dublin Core)
eng
Relation (Dublin Core)
https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/128/116
Rights (Dublin Core)
en-US
Copyright (c) 2015 Cong Zhou, J. Geoffrey Chase, Geoffrey W. Rodgers, Adam Kuang, Stefanie Gutschmidt, Chao Xu
en-US
https://creativecommons.org/licenses/by/4.0
