A new definition of strong motion duration and related parameters affecting the response of medium-long period structures

Taflampas, IM; Spyrakos, CC; Koutromanos, IA

dc.contributor.author	Taflampas, IM	en
dc.contributor.author	Spyrakos, CC	en
dc.contributor.author	Koutromanos, IA	en
dc.date.accessioned	2014-03-01T01:29:34Z
dc.date.available	2014-03-01T01:29:34Z
dc.date.issued	2009	en
dc.identifier.issn	0267-7261	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19316
dc.subject	Earthquake engineering	en
dc.subject	Seismic damage criteria	en
dc.subject	Strong motion duration	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Amplification	en
dc.subject.other	Civil engineering	en
dc.subject.other	Earthquakes	en
dc.subject.other	Engineering geology	en
dc.subject.other	Frequency response	en
dc.subject.other	Absolute displacements	en
dc.subject.other	Earthquake engineering	en
dc.subject.other	Equivalent loadings	en
dc.subject.other	Ground velocities	en
dc.subject.other	Long-period structures	en
dc.subject.other	New indices	en
dc.subject.other	Normalized parameters	en
dc.subject.other	Seismic damage criteria	en
dc.subject.other	Strong motion duration	en
dc.subject.other	Structural behaviors	en
dc.subject.other	Structural response	en
dc.subject.other	Time integrals	en
dc.subject.other	Seismology	en
dc.subject.other	displacement	en
dc.subject.other	earthquake damage	en
dc.subject.other	earthquake engineering	en
dc.subject.other	estimation method	en
dc.subject.other	loading test	en
dc.subject.other	strong motion	en
dc.subject.other	structural response	en
dc.title	A new definition of strong motion duration and related parameters affecting the response of medium-long period structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.soildyn.2008.08.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.soildyn.2008.08.005	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	This study presents a new definition of the strong motion duration combining the alternative bracketed and significant duration definitions. Based on the time integral of the absolute ground velocity, a new index is defined, as cumulative absolute displacement (CAD), and used to estimate the strong motion duration. The proposed bracketed-significant duration t(bs) is found to be well correlated with the strong motion part of the records, especially in the case of near-source events. The duration t(bs), and the CAD index are used to assess the anticipated structural behavior of medium-long period structures. Two normalized parameters P-1 and P-2, representing the amplification of structural response and the number of equivalent loading cycles, respectively, are determined in terms of the t(bs) and CAD and the spectral velocity associated with the medium-long period range. P-1 and P-2 appear to be better correlated with the structural response than established well-known indices. (c) 2008 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Soil Dynamics and Earthquake Engineering	en
dc.identifier.doi	10.1016/j.soildyn.2008.08.005	en
dc.identifier.isi	ISI:000263854000014	en
dc.identifier.volume	29	en
dc.identifier.issue	4	en
dc.identifier.spage	752	en
dc.identifier.epage	763	en