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The role of source and site effects on structural failures due to Azores earthquakes

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dc.contributor.authorEstêvão, João Manuel Carvalho
dc.contributor.authorCarvalho, Alexandra
dc.date.accessioned2016-05-10T10:46:16Z
dc.date.available2016-05-10T10:46:16Z
dc.date.issued2015
dc.description.abstractThe existing building stock in Azores islands (Portugal) was severely damaged during 1980 and 1998 earthquakes. Structural failure was probably caused by a combination of factors that are not yet well understood. Earthquake source characteristics, site effects and structural vulnerability may be some of those factors. However, it is very difficult to assess the influence of each factor on structural failure, mainly because recorded accelerograms used in nonlinear structural analysis are influenced by both source characteristics and site conditions. The only way to overcome this problem is to control each factor individually which can be done by using simulated accelerograms. In our previous work, stochastic ground motion simulations results were compared with earthquake records. Results seem to indicate that simulated accelerograms can match recorded accelerograms if proper source characteristics and geological site conditions are selected. In this work, simulated accelerograms were used for seismic nonlinear structural analysis. Simulations were carried out considering several 1980 Azores earthquake possible sources and for different geological site conditions. Simulated accelerograms were then used to evaluate the structural nonlinear behaviour of a reinforced concrete structure and of two masonry structures. The results of this work highlight the importance of site conditions and earthquake source characteristics to the determination of the design seismic actions of Azores islands. This work was performed in the scope of “Strong ground motion for Azores – SiGMA” project, financed by the Portuguese Science and Technology Foundation (PTDC/CTE-GIX/121957/2010).pt_PT
dc.identifier.citationESTÊVÃO, J.M.C. ; CARVALHO, A. (2015) – The role of source and site effects on structural failures due to Azores earthquakes. Engineering Failure Analysis. Elsevier. Vol. 56, p. 429-440. DOI: 10.1016/j.engfailanal.2014.12.010pt_PT
dc.identifier.doihttp://dx.doi.org/ 10.1016/j.engfailanal.2014.12.010pt_PT
dc.identifier.issn1350-6307
dc.identifier.otherAUT: JES00807;
dc.identifier.urihttp://hdl.handle.net/10400.1/8193
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S1350630714003732pt_PT
dc.subjectStructural failurespt_PT
dc.subjectEarthquakespt_PT
dc.subjectSource effectspt_PT
dc.subjectSite effectspt_PT
dc.titleThe role of source and site effects on structural failures due to Azores earthquakespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCTE-GIX%2F121957%2F2010/PT
oaire.citation.endPage440pt_PT
oaire.citation.startPage429pt_PT
oaire.citation.titleEngineering Failure Analysispt_PT
oaire.citation.volume56pt_PT
oaire.fundingStream3599-PPCDT
person.familyNameEstêvão
person.givenNameJoão Manuel Carvalho
person.identifierLh0jYe0AAAAJ&hl
person.identifier.ciencia-id001A-8761-A164
person.identifier.orcid0000-0002-7356-9893
person.identifier.scopus-author-id56268965500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery39e5f28b-fdf6-4823-b622-87f4177dd013
relation.isProjectOfPublication8dd51823-9952-4f59-aee8-002f588e3231
relation.isProjectOfPublication.latestForDiscovery8dd51823-9952-4f59-aee8-002f588e3231

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