Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions

In this paper, attempts are made to compare the seismic fragility and the probability of failure of steel structures supported on different types of friction pendulum isolators. These isolators including single friction, dual friction pendulum and triple friction pendulum are designed to have simila...

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Autores principales:	Hamed Tajammolian, Shima Afrough, Mehdi yazdin
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	friction pendulum isolator seismic fragility damage state incremental dynamic analysis performance based design Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/3df65645dd964bcf9ed6c7227f1f6733
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spelling	oai:doaj.org-article:3df65645dd964bcf9ed6c7227f1f67332021-11-08T15:53:13ZSeismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions2476-39772538-261610.22065/jsce.2018.119247.1465https://doaj.org/article/3df65645dd964bcf9ed6c7227f1f67332020-06-01T00:00:00Zhttps://www.jsce.ir/article_68547_21c1fec5524f7da969340e852f4c0d29.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this paper, attempts are made to compare the seismic fragility and the probability of failure of steel structures supported on different types of friction pendulum isolators. These isolators including single friction, dual friction pendulum and triple friction pendulum are designed to have similar effective periods as a prominent characteristic of them. The designed bearings have 3- to 5-second effective period and supports 3- and 6-story moment framed steel structures. These two superstructures represent short-range and intermediate-order buildings based on HAZUS technical manual. Three-dimensional nonlinear models of the structures are idealized in a finite element framework and nonlinear time history analyses are performed. In order to compute the fragility of the structure, the probable uncertainty sources in an isolated building such as earthquake record, modeling, design, and properties of materials in a probabilistic framework are considered. Furthermore, incremental dynamic analysis (IDA) is performed and the fragility curves of the structure are obtained in slight, moderate, extensive and collapse damage states (DS). Calculating the failure probability according to FEMA P-695, it is showed that all the isolated structures have less than 10% collapse probability. In addition, it is revealed that the triple concave friction pendulum (TCFP) has greater collapse margin ratio (CMR) than other kind of friction bearings. Growing the effective period of TCFP from 3 to 5 seconds, increases the CMR nearly 70 percent.Hamed TajammolianShima AfroughMehdi yazdinIranian Society of Structrual Engineering (ISSE)articlefriction pendulum isolatorseismic fragilitydamage stateincremental dynamic analysisperformance based designBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 2, Pp 95-114 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	friction pendulum isolator seismic fragility damage state incremental dynamic analysis performance based design Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	friction pendulum isolator seismic fragility damage state incremental dynamic analysis performance based design Bridge engineering TG1-470 Building construction TH1-9745 Hamed Tajammolian Shima Afrough Mehdi yazdin Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
description	In this paper, attempts are made to compare the seismic fragility and the probability of failure of steel structures supported on different types of friction pendulum isolators. These isolators including single friction, dual friction pendulum and triple friction pendulum are designed to have similar effective periods as a prominent characteristic of them. The designed bearings have 3- to 5-second effective period and supports 3- and 6-story moment framed steel structures. These two superstructures represent short-range and intermediate-order buildings based on HAZUS technical manual. Three-dimensional nonlinear models of the structures are idealized in a finite element framework and nonlinear time history analyses are performed. In order to compute the fragility of the structure, the probable uncertainty sources in an isolated building such as earthquake record, modeling, design, and properties of materials in a probabilistic framework are considered. Furthermore, incremental dynamic analysis (IDA) is performed and the fragility curves of the structure are obtained in slight, moderate, extensive and collapse damage states (DS). Calculating the failure probability according to FEMA P-695, it is showed that all the isolated structures have less than 10% collapse probability. In addition, it is revealed that the triple concave friction pendulum (TCFP) has greater collapse margin ratio (CMR) than other kind of friction bearings. Growing the effective period of TCFP from 3 to 5 seconds, increases the CMR nearly 70 percent.
format	article
author	Hamed Tajammolian Shima Afrough Mehdi yazdin
author_facet	Hamed Tajammolian Shima Afrough Mehdi yazdin
author_sort	Hamed Tajammolian
title	Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
title_short	Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
title_full	Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
title_fullStr	Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
title_full_unstemmed	Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions
title_sort	seismic fragility assessment of steel structures supported on friction pendulum isolators subjected to far-field ground motions
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/3df65645dd964bcf9ed6c7227f1f6733
work_keys_str_mv	AT hamedtajammolian seismicfragilityassessmentofsteelstructuressupportedonfrictionpendulumisolatorssubjectedtofarfieldgroundmotions AT shimaafrough seismicfragilityassessmentofsteelstructuressupportedonfrictionpendulumisolatorssubjectedtofarfieldgroundmotions AT mehdiyazdin seismicfragilityassessmentofsteelstructuressupportedonfrictionpendulumisolatorssubjectedtofarfieldgroundmotions
_version_	1718441560301895680

Seismic Fragility Assessment of Steel Structures Supported on Friction Pendulum Isolators Subjected to Far-Field Ground Motions

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