Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions

Self centering rocking buildings are capable of reducing permanent damage and concentrating damage to replaceable energy dissipation devices. This paper aims to calculate inelastic displacement ratio for self centering rocking buildings under far field and near field pulse like ground motions. In th...

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Autores principales:	Navid Rahgozar, Abdolreza sarvghad moghadam
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	self-centering rocking system inelastic displacement ratio far-field ground motions near-field ground motions nonlinear dynamic analysis Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/e92dce47c8394767b34316ee1bdd1813
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spelling	oai:doaj.org-article:e92dce47c8394767b34316ee1bdd18132021-11-08T15:51:06ZInelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions2476-39772538-261610.22065/jsce.2017.77217.1070https://doaj.org/article/e92dce47c8394767b34316ee1bdd18132019-02-01T00:00:00Zhttps://www.jsce.ir/article_50145_11f5ed375605c2bdee921f36a9511a41.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Self centering rocking buildings are capable of reducing permanent damage and concentrating damage to replaceable energy dissipation devices. This paper aims to calculate inelastic displacement ratio for self centering rocking buildings under far field and near field pulse like ground motions. In this paper, the inelastic displacement ratio, i.e. the ratio of the maximum inelastic displacement to the maximum displacement of the elastic system, for self centering rocking systems are determined using nonlinear dynamic time history analysis. The effects of seismic and modeling parameters on the inelastic displacement demands of self centering rocking buildings are also evaluated. Findings show that the effect of the pulse period of ground motions, predominant period of ground motions, and modelling parameters (i.e. response modification factor, hardening ratio, and energy dissipation ratio) on the inelastic displacement ratio are considerable, while influences of the other parameters such as distance to the fault site, ground motion magnitude, and the soil site are less on the analysis results. Finally, using a two-stage regression on the statistical results, new equations are proposed for estimation of the scaled and unscaled (code base) constant strength spectra of self centering rocking buildings under far field and near field pulse like ground motions.Navid RahgozarAbdolreza sarvghad moghadamIranian Society of Structrual Engineering (ISSE)articleself-centering rocking systeminelastic displacement ratiofar-field ground motionsnear-field ground motionsnonlinear dynamic analysisBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 5, Iss شماره ویژه 4, Pp 36-57 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	self-centering rocking system inelastic displacement ratio far-field ground motions near-field ground motions nonlinear dynamic analysis Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	self-centering rocking system inelastic displacement ratio far-field ground motions near-field ground motions nonlinear dynamic analysis Bridge engineering TG1-470 Building construction TH1-9745 Navid Rahgozar Abdolreza sarvghad moghadam Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
description	Self centering rocking buildings are capable of reducing permanent damage and concentrating damage to replaceable energy dissipation devices. This paper aims to calculate inelastic displacement ratio for self centering rocking buildings under far field and near field pulse like ground motions. In this paper, the inelastic displacement ratio, i.e. the ratio of the maximum inelastic displacement to the maximum displacement of the elastic system, for self centering rocking systems are determined using nonlinear dynamic time history analysis. The effects of seismic and modeling parameters on the inelastic displacement demands of self centering rocking buildings are also evaluated. Findings show that the effect of the pulse period of ground motions, predominant period of ground motions, and modelling parameters (i.e. response modification factor, hardening ratio, and energy dissipation ratio) on the inelastic displacement ratio are considerable, while influences of the other parameters such as distance to the fault site, ground motion magnitude, and the soil site are less on the analysis results. Finally, using a two-stage regression on the statistical results, new equations are proposed for estimation of the scaled and unscaled (code base) constant strength spectra of self centering rocking buildings under far field and near field pulse like ground motions.
format	article
author	Navid Rahgozar Abdolreza sarvghad moghadam
author_facet	Navid Rahgozar Abdolreza sarvghad moghadam
author_sort	Navid Rahgozar
title	Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
title_short	Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
title_full	Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
title_fullStr	Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
title_full_unstemmed	Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
title_sort	inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/e92dce47c8394767b34316ee1bdd1813
work_keys_str_mv	AT navidrahgozar inelasticdisplacementratioforrockingbuildingssubjectedtofarfieldandnearfieldpulselikegroundmotions AT abdolrezasarvghadmoghadam inelasticdisplacementratioforrockingbuildingssubjectedtofarfieldandnearfieldpulselikegroundmotions
_version_	1718441710610022400

Inelastic displacement ratio for rocking buildings subjected to far-field and near-field pulse-like ground motions

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