Incremental dynamic analysis for estimating seismic performance sensitivity and uncertainty

Vamvatsikos, D; Fragiadakis, M

dc.contributor.author	Vamvatsikos, D	en
dc.contributor.author	Fragiadakis, M	en
dc.date.accessioned	2014-03-01T01:33:38Z
dc.date.available	2014-03-01T01:33:38Z
dc.date.issued	2010	en
dc.identifier.issn	0098-8847	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20505
dc.subject	Epistemic uncertainty	en
dc.subject	First-order second-moment	en
dc.subject	Incremental dynamic analysis	en
dc.subject	Latin hypercube sampling	en
dc.subject	Monte carlo	en
dc.subject	Performance-based earthquake engineering	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Engineering, Geological	en
dc.subject.other	Epistemic uncertainties	en
dc.subject.other	First order second moment	en
dc.subject.other	Incremental dynamic analysis	en
dc.subject.other	Latin hypercube sampling	en
dc.subject.other	MONTE CARLO	en
dc.subject.other	Performance-based earthquake engineering	en
dc.subject.other	Civil engineering	en
dc.subject.other	Computer simulation	en
dc.subject.other	Dynamic analysis	en
dc.subject.other	Earthquakes	en
dc.subject.other	Engineering geology	en
dc.subject.other	Geometry	en
dc.subject.other	Hardening	en
dc.subject.other	Model structures	en
dc.subject.other	Monte Carlo methods	en
dc.subject.other	Rotation	en
dc.subject.other	Seismic waves	en
dc.subject.other	Sensitivity analysis	en
dc.subject.other	Uncertainty analysis	en
dc.subject.other	accuracy assessment	en
dc.subject.other	computer simulation	en
dc.subject.other	dynamic analysis	en
dc.subject.other	earthquake engineering	en
dc.subject.other	Monte Carlo analysis	en
dc.subject.other	multistorey building	en
dc.subject.other	performance assessment	en
dc.subject.other	sampling	en
dc.subject.other	seismic response	en
dc.subject.other	sensitivity analysis	en
dc.subject.other	steel structure	en
dc.subject.other	structural analysis	en
dc.subject.other	uncertainty analysis	en
dc.title	Incremental dynamic analysis for estimating seismic performance sensitivity and uncertainty	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/eqe.935	en
heal.identifier.secondary	http://dx.doi.org/10.1002/eqe.935	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Incremental dynamic analysis (IDA) is presented as a powerful tool to evaluate the variability in the seismic demand and capacity of non-deterministic structural models, building upon existing methodologies of Monte Carlo simulation and approximate moment-estimation. A nine-story steel moment-resisting frame is used as a testbed, employing parameterized moment-rotation relationships with non-deterministic quadrilinear backbones for the beam plastic-hinges. The uncertain properties of the backbones include the yield moment, the post-yield hardening ratio, the end-of-hardening rotation, the slope of the descending, branch, the residual moment capacity and the ultimate rotation reached. IDA is employed to accurately assess the seismic performance of the model for any combination of the parameters by performing Multiple nonlinear timehistory analyses for a suite of ground motion records. Sensitivity analyses on both the IDA and the static pushover level reveal the yield moment and the two rotational-ductility parameters to be the most influential for the frame behavior. To propagate the parametric uncertainty to the actual seismic performance we employ (a) Monte Carlo simulation with latin hypercube sampling, (b) point-estimate and (c) first-order second-moment techniques, thus offering competing methods that represent different compromises between speed and accuracy. The final results provide firm ground for challenging current assumptions in seismic guidelines on using a median-parameter model to estimate the median seismic performance and employing the well-known square-root-sum-of-squares rule to combine aleatory randomness and epistemic uncertainty. Copyright (C) 2009 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	Earthquake Engineering and Structural Dynamics	en
dc.identifier.doi	10.1002/eqe.935	en
dc.identifier.isi	ISI:000274174700002	en
dc.identifier.volume	39	en
dc.identifier.issue	2	en
dc.identifier.spage	141	en
dc.identifier.epage	163	en