Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System

Recently, base isolation techniques are applied as a resisting system to protect the structures from seismic and dynamic loadings. Due to their importance, in this paper, an optimum arrangement of lead rubber bearing (LRB) and friction pendulum system (FPS) is investigated in irregular buildings and...

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Autores principales:	Mahmoud Reza Shiravand, Hesam Ketabdari
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	lead rubber bearing friction pendulum system nonlinear time history analysis optimum arrangement irregular buildings Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/8c5e2f34a3454e22ab8eec81d2dddfc6
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spelling	oai:doaj.org-article:8c5e2f34a3454e22ab8eec81d2dddfc62021-11-08T15:54:49ZEvaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System2476-39772538-261610.22065/jsce.2019.188761.1872https://doaj.org/article/8c5e2f34a3454e22ab8eec81d2dddfc62021-06-01T00:00:00Zhttps://www.jsce.ir/article_91957_f7ec56f7fcf88bdfd55142f82858f5ee.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Recently, base isolation techniques are applied as a resisting system to protect the structures from seismic and dynamic loadings. Due to their importance, in this paper, an optimum arrangement of lead rubber bearing (LRB) and friction pendulum system (FPS) is investigated in irregular buildings and its performance is compared with a regular case. For this purpose, 3 types of irregularities have been adopted. Accordingly, 3, 7 and 10 story buildings have been performed and 12 possible combination have been applied for the isolators in each model. Afterwards, the numerical models have been analyzed using nonlinear time-history analysis and direct integration method and applying 7 earthquake records along the longitudinal and transverse directions of the building. The obtained results of the numerical study show that the application of FPS and LRB isolators in outer and inner columns respectively, led to a better performance compared to the other arrangements by reduction of the inter-story drifts as well as base shear and enhancement of the energy dissipation which is due to the characteristics of FPS isolators in balancing the applied forces with the building’s mass and prevention of torsion occurrence in irregular structures. Unlike the irregular buildings, application of FPS and LRB isolators in inner and outer columns, result in a better performance by reducing the story drifts in regular structures.Mahmoud Reza ShiravandHesam KetabdariIranian Society of Structrual Engineering (ISSE)articlelead rubber bearingfriction pendulum systemnonlinear time history analysisoptimum arrangementirregular buildingsBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 4, Pp 141-163 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	lead rubber bearing friction pendulum system nonlinear time history analysis optimum arrangement irregular buildings Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	lead rubber bearing friction pendulum system nonlinear time history analysis optimum arrangement irregular buildings Bridge engineering TG1-470 Building construction TH1-9745 Mahmoud Reza Shiravand Hesam Ketabdari Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
description	Recently, base isolation techniques are applied as a resisting system to protect the structures from seismic and dynamic loadings. Due to their importance, in this paper, an optimum arrangement of lead rubber bearing (LRB) and friction pendulum system (FPS) is investigated in irregular buildings and its performance is compared with a regular case. For this purpose, 3 types of irregularities have been adopted. Accordingly, 3, 7 and 10 story buildings have been performed and 12 possible combination have been applied for the isolators in each model. Afterwards, the numerical models have been analyzed using nonlinear time-history analysis and direct integration method and applying 7 earthquake records along the longitudinal and transverse directions of the building. The obtained results of the numerical study show that the application of FPS and LRB isolators in outer and inner columns respectively, led to a better performance compared to the other arrangements by reduction of the inter-story drifts as well as base shear and enhancement of the energy dissipation which is due to the characteristics of FPS isolators in balancing the applied forces with the building’s mass and prevention of torsion occurrence in irregular structures. Unlike the irregular buildings, application of FPS and LRB isolators in inner and outer columns, result in a better performance by reducing the story drifts in regular structures.
format	article
author	Mahmoud Reza Shiravand Hesam Ketabdari
author_facet	Mahmoud Reza Shiravand Hesam Ketabdari
author_sort	Mahmoud Reza Shiravand
title	Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
title_short	Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
title_full	Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
title_fullStr	Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
title_full_unstemmed	Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System
title_sort	evaluating seismic response of plan irregular buildings using combination of lead rubber bearing isolator and friction pendulum system
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/8c5e2f34a3454e22ab8eec81d2dddfc6
work_keys_str_mv	AT mahmoudrezashiravand evaluatingseismicresponseofplanirregularbuildingsusingcombinationofleadrubberbearingisolatorandfrictionpendulumsystem AT hesamketabdari evaluatingseismicresponseofplanirregularbuildingsusingcombinationofleadrubberbearingisolatorandfrictionpendulumsystem
_version_	1718441583167143936

Evaluating Seismic Response of Plan Irregular Buildings Using Combination of Lead Rubber Bearing Isolator and Friction Pendulum System

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