Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures

Isolation of buildings from earth vibrations is a new method that has been considered in the last few decades and is the only way to reduce simultaneously the inter-story displacement and acceleration of stories. In this method, increasing the period of rotation and damping of the structure at the s...

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Autores principales:	Sahar Radkia, Rohola Rahnavard, Farhad Abbas Gandomkar
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	sliding structure isolator seismic analysis steel moment frame finite element method Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/b3c5818829b24dc1a12a0d443560dd0f
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spelling	oai:doaj.org-article:b3c5818829b24dc1a12a0d443560dd0f2021-11-08T15:51:46ZEvaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures2476-39772538-261610.22065/jsce.2018.114089.1428https://doaj.org/article/b3c5818829b24dc1a12a0d443560dd0f2019-12-01T00:00:00Zhttps://www.jsce.ir/article_63630_589155f95e6fa8bf4316e641363acf4b.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Isolation of buildings from earth vibrations is a new method that has been considered in the last few decades and is the only way to reduce simultaneously the inter-story displacement and acceleration of stories. In this method, increasing the period of rotation and damping of the structure at the separated level, the energy from the earthquake force to the structure decreases. Furthermore, recent earthquakes, including the Bam earthquake, have horizontal and vertical components, which resulted in the destruction of more structures, depending on the time of the start of the vertical or horizontal components or their combination. This issue highlights the importance of examining the vertical component of the earthquake in addition to the horizontal component. According to the mentioned cases, the main objective of this research is to investigate the behavior of asymmetric sliding structures with different separators under the horizontal component and the combination of horizontal and vertical components of the earthquake, taking into account the effects of soil and structure interaction. For this purpose, structures of 1, 5, and 10 stories irregular building(irregular amount of 40%) with seismic separators R-FBI, LRB and P-F on soil type IV are considered. In order to obtain the results of the research, the numerical method of finite element method has been used with modelling of materials in nonlinear area and performing explicit dynamic analysis. The results of the study showed that with increasing number of stories, the seismic separation function of R-FBI is better than other LRB and P-F separators. Also, the results of this study show that the simultaneous effect of horizontal and vertical components on structures 1 and 10 is remarkable.Sahar RadkiaRohola RahnavardFarhad Abbas GandomkarIranian Society of Structrual Engineering (ISSE)articlesliding structureisolatorseismic analysissteel moment framefinite element methodBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss 4, Pp 213-230 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	sliding structure isolator seismic analysis steel moment frame finite element method Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	sliding structure isolator seismic analysis steel moment frame finite element method Bridge engineering TG1-470 Building construction TH1-9745 Sahar Radkia Rohola Rahnavard Farhad Abbas Gandomkar Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
description	Isolation of buildings from earth vibrations is a new method that has been considered in the last few decades and is the only way to reduce simultaneously the inter-story displacement and acceleration of stories. In this method, increasing the period of rotation and damping of the structure at the separated level, the energy from the earthquake force to the structure decreases. Furthermore, recent earthquakes, including the Bam earthquake, have horizontal and vertical components, which resulted in the destruction of more structures, depending on the time of the start of the vertical or horizontal components or their combination. This issue highlights the importance of examining the vertical component of the earthquake in addition to the horizontal component. According to the mentioned cases, the main objective of this research is to investigate the behavior of asymmetric sliding structures with different separators under the horizontal component and the combination of horizontal and vertical components of the earthquake, taking into account the effects of soil and structure interaction. For this purpose, structures of 1, 5, and 10 stories irregular building(irregular amount of 40%) with seismic separators R-FBI, LRB and P-F on soil type IV are considered. In order to obtain the results of the research, the numerical method of finite element method has been used with modelling of materials in nonlinear area and performing explicit dynamic analysis. The results of the study showed that with increasing number of stories, the seismic separation function of R-FBI is better than other LRB and P-F separators. Also, the results of this study show that the simultaneous effect of horizontal and vertical components on structures 1 and 10 is remarkable.
format	article
author	Sahar Radkia Rohola Rahnavard Farhad Abbas Gandomkar
author_facet	Sahar Radkia Rohola Rahnavard Farhad Abbas Gandomkar
author_sort	Sahar Radkia
title	Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
title_short	Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
title_full	Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
title_fullStr	Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
title_full_unstemmed	Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
title_sort	evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/b3c5818829b24dc1a12a0d443560dd0f
work_keys_str_mv	AT saharradkia evaluationoftheeffectofdifferentseismicisolatorsonthebehaviorofasymmetricsteelslidingstructures AT roholarahnavard evaluationoftheeffectofdifferentseismicisolatorsonthebehaviorofasymmetricsteelslidingstructures AT farhadabbasgandomkar evaluationoftheeffectofdifferentseismicisolatorsonthebehaviorofasymmetricsteelslidingstructures
_version_	1718441696063127552

Evaluation of the effect of different seismic isolators on the behavior of asymmetric steel sliding structures

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