Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels

In this research, the seismic performance of 5story buildings having dual systems of moment frame and chevron bracings, chevron panels along with zipper columns, inverted chevron panels, inverted chevron panels along with zipper columns is evaluated based on conducting nonlinear time history analyse...

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Autores principales:	Ramin Madani, Ali Mortazavi, Afshin Meshkat-Dini
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	dual resistant system chevron bracing zipper column element rigid frame velocity pulse Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/21d019b6707f4d65909a45a27c99efc2
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spelling	oai:doaj.org-article:21d019b6707f4d65909a45a27c99efc22021-11-08T15:53:06ZAssessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels2476-39772538-261610.22065/jsce.2018.121243.1486https://doaj.org/article/21d019b6707f4d65909a45a27c99efc22020-03-01T00:00:00Zhttps://www.jsce.ir/article_67246_423fbd7adba7e7b5f23d178486b8eabb.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this research, the seismic performance of 5story buildings having dual systems of moment frame and chevron bracings, chevron panels along with zipper columns, inverted chevron panels, inverted chevron panels along with zipper columns is evaluated based on conducting nonlinear time history analyses under an ensemble of 3-component far and near-field records. Behavioral features of resistant skeletons having chevron braced panels are controlled through a near-buckling performance of diagonal limbs under pressure. It has been observed that when intensive earthquakes occur, this type of resistant skeleton reveals a gradual loss in resistant features. The appearance of the effects of the two phenomena of stiffness deterioration and strength degradation would be remarkable. A desirable solution in dealing with this weakness is adding a zipper column to the braced panel. The major criterion in selecting near-field records has been the existence of distinct or compound pulses with long period and large amplitude in the ground velocity time history. It has been noticed that this feature affects the seismic response parameters of the building to a great extent. All structures have been designed with a regular plan and according to seismic provisions in the code 2800 and also the 6th and 10th issues of the Iranian National Building Regulations. The specific outlook of this research lies in assessing the changes in maximum displacement responses, relative velocity, absolute acceleration of the floors, plastic hinge formation mechanism and the axial force of the columns. Results show a moderate superiority in the seismic performance of dual skeleton having zipper elements compared to the same resistant system with a lack of zippers.Ramin MadaniAli MortazaviAfshin Meshkat-DiniIranian Society of Structrual Engineering (ISSE)articledual resistant systemchevron bracingzipper column elementrigid framevelocity pulseBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 1, Pp 218-239 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	dual resistant system chevron bracing zipper column element rigid frame velocity pulse Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	dual resistant system chevron bracing zipper column element rigid frame velocity pulse Bridge engineering TG1-470 Building construction TH1-9745 Ramin Madani Ali Mortazavi Afshin Meshkat-Dini Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
description	In this research, the seismic performance of 5story buildings having dual systems of moment frame and chevron bracings, chevron panels along with zipper columns, inverted chevron panels, inverted chevron panels along with zipper columns is evaluated based on conducting nonlinear time history analyses under an ensemble of 3-component far and near-field records. Behavioral features of resistant skeletons having chevron braced panels are controlled through a near-buckling performance of diagonal limbs under pressure. It has been observed that when intensive earthquakes occur, this type of resistant skeleton reveals a gradual loss in resistant features. The appearance of the effects of the two phenomena of stiffness deterioration and strength degradation would be remarkable. A desirable solution in dealing with this weakness is adding a zipper column to the braced panel. The major criterion in selecting near-field records has been the existence of distinct or compound pulses with long period and large amplitude in the ground velocity time history. It has been noticed that this feature affects the seismic response parameters of the building to a great extent. All structures have been designed with a regular plan and according to seismic provisions in the code 2800 and also the 6th and 10th issues of the Iranian National Building Regulations. The specific outlook of this research lies in assessing the changes in maximum displacement responses, relative velocity, absolute acceleration of the floors, plastic hinge formation mechanism and the axial force of the columns. Results show a moderate superiority in the seismic performance of dual skeleton having zipper elements compared to the same resistant system with a lack of zippers.
format	article
author	Ramin Madani Ali Mortazavi Afshin Meshkat-Dini
author_facet	Ramin Madani Ali Mortazavi Afshin Meshkat-Dini
author_sort	Ramin Madani
title	Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
title_short	Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
title_full	Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
title_fullStr	Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
title_full_unstemmed	Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels
title_sort	assessment of seismic response of low-rise dual resistant system comprising of steel moment frame and zipper chevron braced panels
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/21d019b6707f4d65909a45a27c99efc2
work_keys_str_mv	AT raminmadani assessmentofseismicresponseoflowrisedualresistantsystemcomprisingofsteelmomentframeandzipperchevronbracedpanels AT alimortazavi assessmentofseismicresponseoflowrisedualresistantsystemcomprisingofsteelmomentframeandzipperchevronbracedpanels AT afshinmeshkatdini assessmentofseismicresponseoflowrisedualresistantsystemcomprisingofsteelmomentframeandzipperchevronbracedpanels
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Assessment of Seismic Response of Low-Rise Dual Resistant System comprising of Steel Moment Frame and Zipper Chevron Braced Panels

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