Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings

In this study, the effect of isolators positioning at three Levels and different arrangements on seismic response of RC buildings are investigated. For this purpose 18 RC building of 4, 8 and 12 story with and without lead rubber bearing (LRB) isolators were selected. The LRB isolators positioned at...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ebrahim Zamani beydokhti, Amir Mohammad Taghavi, Hamed Kouhestanian
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	incremental dynamic analysis (ida) lead rubber bearing (lrb) fragility curves near fault earthquakes far field earthquakes Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/548c2311b40344d38b34cf5aa6235a37
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:548c2311b40344d38b34cf5aa6235a37
record_format	dspace
spelling	oai:doaj.org-article:548c2311b40344d38b34cf5aa6235a372021-11-08T15:54:18ZAnalytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings2476-39772538-261610.22065/jsce.2019.155463.1703https://doaj.org/article/548c2311b40344d38b34cf5aa6235a372021-03-01T00:00:00Zhttps://www.jsce.ir/article_82946_74d5e0c22d14ca1caf0a42b26f7c17ed.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this study, the effect of isolators positioning at three Levels and different arrangements on seismic response of RC buildings are investigated. For this purpose 18 RC building of 4, 8 and 12 story with and without lead rubber bearing (LRB) isolators were selected. The LRB isolators positioned at three Levels and five different arrangements were modeled in Opensees software. The near field and far fault earthquakes were added to the frames and incremental dynamic analysis was performed. The fragility curves base on inter-story drift ratio as well as the IDA curves base on maximum inter-story drift ratio, maximum base shear, maximum roof displacement and acceleration versus peak ground accelerations (PGA) were plotted and compared. The results showed that among the isolated structures, the isolator positioning at the level of below the first floor (type 1 and type 2) had the best performance in reducing responses. The positioning type 1 (MSI-1) resulted the best decreasing in inter-story drift ratio and base shear. In addition, this type of isolator had the best increasing the PGA according to median fragility between the different types of the positioning levels. The recommended type of isolator had the best performance, especially in high rise buildings in severe damage levels.Ebrahim Zamani beydokhtiAmir Mohammad TaghaviHamed KouhestanianIranian Society of Structrual Engineering (ISSE)articleincremental dynamic analysis (ida)lead rubber bearing (lrb)fragility curvesnear faultearthquakesfar field earthquakesBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 1, Pp 42-61 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	incremental dynamic analysis (ida) lead rubber bearing (lrb) fragility curves near fault earthquakes far field earthquakes Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	incremental dynamic analysis (ida) lead rubber bearing (lrb) fragility curves near fault earthquakes far field earthquakes Bridge engineering TG1-470 Building construction TH1-9745 Ebrahim Zamani beydokhti Amir Mohammad Taghavi Hamed Kouhestanian Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
description	In this study, the effect of isolators positioning at three Levels and different arrangements on seismic response of RC buildings are investigated. For this purpose 18 RC building of 4, 8 and 12 story with and without lead rubber bearing (LRB) isolators were selected. The LRB isolators positioned at three Levels and five different arrangements were modeled in Opensees software. The near field and far fault earthquakes were added to the frames and incremental dynamic analysis was performed. The fragility curves base on inter-story drift ratio as well as the IDA curves base on maximum inter-story drift ratio, maximum base shear, maximum roof displacement and acceleration versus peak ground accelerations (PGA) were plotted and compared. The results showed that among the isolated structures, the isolator positioning at the level of below the first floor (type 1 and type 2) had the best performance in reducing responses. The positioning type 1 (MSI-1) resulted the best decreasing in inter-story drift ratio and base shear. In addition, this type of isolator had the best increasing the PGA according to median fragility between the different types of the positioning levels. The recommended type of isolator had the best performance, especially in high rise buildings in severe damage levels.
format	article
author	Ebrahim Zamani beydokhti Amir Mohammad Taghavi Hamed Kouhestanian
author_facet	Ebrahim Zamani beydokhti Amir Mohammad Taghavi Hamed Kouhestanian
author_sort	Ebrahim Zamani beydokhti
title	Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
title_short	Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
title_full	Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
title_fullStr	Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
title_full_unstemmed	Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings
title_sort	analytical study of the effect of lrb isolators positioning at the base and inter-story levels on seismic response of rc buildings
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/548c2311b40344d38b34cf5aa6235a37
work_keys_str_mv	AT ebrahimzamanibeydokhti analyticalstudyoftheeffectoflrbisolatorspositioningatthebaseandinterstorylevelsonseismicresponseofrcbuildings AT amirmohammadtaghavi analyticalstudyoftheeffectoflrbisolatorspositioningatthebaseandinterstorylevelsonseismicresponseofrcbuildings AT hamedkouhestanian analyticalstudyoftheeffectoflrbisolatorspositioningatthebaseandinterstorylevelsonseismicresponseofrcbuildings
_version_	1718441565167288320

Analytical study of the effect of LRB isolators positioning at the base and inter-story levels on seismic response of RC buildings

Ejemplares similares