Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/21468

TitleSeismic assessment of St. James church by means of pushover analysis : before and after the New Zealand earthquake
Author(s)Araújo, Ana S.
Lourenço, Paulo B.
Oliveira, Daniel V.
Leite, João C.
KeywordsChurch
Finite element method (FEM)
Masonry
New Zealand Earthquake
Pushover analysis
Seismic assessment
Issue date2012
PublisherBentham Open
JournalThe Open Civil Engineering Journal
Abstract(s)The paper presents a numerical study for the seismic assessment of the St James Church in Christchurch, New Zealand affected by the recent 2011 earthquake and subsequent aftershocks. The structural behaviour of the Church has been evaluated using the finite element modelling technique, in which the nonlinear behaviour of masonry has been taken into account by proper constitutive assumptions. Two numerical models were constructed, one incorporating the existing structural damage and the other considering the intact structure. The validation of the numerical models was achieved by the calibration of the damaged model according to dynamic identification tests carried out in situ after the earthquake. Non-linear pushover analyses were carried out on both principal directions demonstrating that, as a result of the seismic action, the Church can no longer be considered safe. Pushover analysis results of the undamaged model show reasonable agreement with the visual inspection performed in situ, which further validates the model used. Finally, limit analysis using macro-block analysis was also carried out to validate the main local collapse mechanisms of the Church.
TypeArticle
URIhttp://hdl.handle.net/1822/21468
DOI10.2174/1874149501206010160
ISSN1874-1495
Publisher versionhttp://benthamscience.com/
Peer-Reviewedyes
AccessOpen access
Appears in Collections:ISISE - Artigos em Revistas Internacionais


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