Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes

In this study, seismic behavior of isolated structures supported on different types of friction pendulum bearings namely SFP, DCFP and TCFP subjected to seven records of near fault ground motion have been compared. To investigate the results of different isolators, they are designed in a way to have...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hamed Tajammolian, reza mahmoodi sarkhoni
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	friction pendulum isolators near-fault ground motion drift of superstructure roof acceleration isolator displacement base shear Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/6661697228f94c4494a0aa47b015d092
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6661697228f94c4494a0aa47b015d092
record_format	dspace
spelling	oai:doaj.org-article:6661697228f94c4494a0aa47b015d0922021-11-08T15:52:51ZComparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes2476-39772538-261610.22065/jsce.2018.114655.1436https://doaj.org/article/6661697228f94c4494a0aa47b015d0922019-11-01T00:00:00Zhttps://www.jsce.ir/article_61446_d3283ba9eb08a7ad02774f7829fe10e4.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this study, seismic behavior of isolated structures supported on different types of friction pendulum bearings namely SFP, DCFP and TCFP subjected to seven records of near fault ground motion have been compared. To investigate the results of different isolators, they are designed in a way to have the same effective period and effective damping as two important parameters. Three-dimensional linear models of three, six and nine story steel moment frames supported on nonlinear FPS, DCFP and TCFP isolators are constructed in the SAP2000 software. By performing nonlinear dynamic analysis and investigating various structural responses such as maximum acceleration of the roof, isolators displacement, base shear and drift of the superstructure, it is showed that the isolation with the TCFP bearing are more efficient than isolation with DCFP and FPS ones. The main reason of this good behavior is five-regime backbone curve of this isolator in which the two last stages of the motion have hardening behavior. In addition, the comparison of the performance of the different isolators suggests the superiority of the TCFP bearing in controlling the displacement of the isolator, acceleration of the roof, and drift of the superstructure. The advantages of TCFP isolator are observed in all the studied superstructures with three, six and nine stories.Hamed Tajammolianreza mahmoodi sarkhoniIranian Society of Structrual Engineering (ISSE)articlefriction pendulum isolatorsnear-fault ground motiondrift of superstructureroof accelerationisolator displacementbase shearBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss شماره ویژه 3, Pp 205-220 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	friction pendulum isolators near-fault ground motion drift of superstructure roof acceleration isolator displacement base shear Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	friction pendulum isolators near-fault ground motion drift of superstructure roof acceleration isolator displacement base shear Bridge engineering TG1-470 Building construction TH1-9745 Hamed Tajammolian reza mahmoodi sarkhoni Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
description	In this study, seismic behavior of isolated structures supported on different types of friction pendulum bearings namely SFP, DCFP and TCFP subjected to seven records of near fault ground motion have been compared. To investigate the results of different isolators, they are designed in a way to have the same effective period and effective damping as two important parameters. Three-dimensional linear models of three, six and nine story steel moment frames supported on nonlinear FPS, DCFP and TCFP isolators are constructed in the SAP2000 software. By performing nonlinear dynamic analysis and investigating various structural responses such as maximum acceleration of the roof, isolators displacement, base shear and drift of the superstructure, it is showed that the isolation with the TCFP bearing are more efficient than isolation with DCFP and FPS ones. The main reason of this good behavior is five-regime backbone curve of this isolator in which the two last stages of the motion have hardening behavior. In addition, the comparison of the performance of the different isolators suggests the superiority of the TCFP bearing in controlling the displacement of the isolator, acceleration of the roof, and drift of the superstructure. The advantages of TCFP isolator are observed in all the studied superstructures with three, six and nine stories.
format	article
author	Hamed Tajammolian reza mahmoodi sarkhoni
author_facet	Hamed Tajammolian reza mahmoodi sarkhoni
author_sort	Hamed Tajammolian
title	Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
title_short	Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
title_full	Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
title_fullStr	Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
title_full_unstemmed	Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
title_sort	comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/6661697228f94c4494a0aa47b015d092
work_keys_str_mv	AT hamedtajammolian comparisonofthebehaviorofisolatedstructuresmountedondifferenttypesoffrictionisolatorssubjectedtonearfieldearthquakes AT rezamahmoodisarkhoni comparisonofthebehaviorofisolatedstructuresmountedondifferenttypesoffrictionisolatorssubjectedtonearfieldearthquakes
_version_	1718441669216436224

Comparison of the behavior of isolated structures mounted on different types of friction isolators subjected to near-field earthquakes

Ejemplares similares