Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading

Concentric bracings (CB) are one of the most prevalent lateral load bearing systems in steel structures. These bracings have a remarkable lateral stiffness and strength, but their compressive buckling prevents them from being ductile and absorbing optimal energy. Consequently, in recent decades, res...

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Autor principal:	Ali Kachooee
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	steel structures concentric brace local fuse ductility energy dissipation capacity loading capacity Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/229d4fc5467549cf8ead0744341db43f
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spelling	oai:doaj.org-article:229d4fc5467549cf8ead0744341db43f2021-11-08T15:54:49ZInvestigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading2476-39772538-261610.22065/jsce.2019.190117.1882https://doaj.org/article/229d4fc5467549cf8ead0744341db43f2021-06-01T00:00:00Zhttps://www.jsce.ir/article_91809_1f368f3cf882e901c925a8e73a06038b.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Concentric bracings (CB) are one of the most prevalent lateral load bearing systems in steel structures. These bracings have a remarkable lateral stiffness and strength, but their compressive buckling prevents them from being ductile and absorbing optimal energy. Consequently, in recent decades, researchers have conducted extensive studies to improve the concentric bracing behavior, which resulted in the development of different design and execution methods for concentric bracings. In this paper, by using numerical and experimental studies, a new method is proposed to improve the behavior of concentric bracings. In this method, a local fuse (LF) is used along the brace. This fuse is restrained by auxiliary elements (AE) to prevent its local buckling under compressive load. This makes the brace behaves in a similar manner in both tensile and compressive cyclic loads, resulting in ductile behavior and high-energy absorption. In this study, by using numerical results, an investigation is done for proper position of the fuse along the braces and its optimal shape and length. In addition, an analytical study has been performed comparing the structural behavior of concentric braces with LF-AE braces. The results have been demonstrated that LF-AE braces have better performance than concentric braces.Ali KachooeeIranian Society of Structrual Engineering (ISSE)articlesteel structuresconcentric bracelocal fuseductilityenergy dissipation capacityloading capacityBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 4, Pp 185-213 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	steel structures concentric brace local fuse ductility energy dissipation capacity loading capacity Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	steel structures concentric brace local fuse ductility energy dissipation capacity loading capacity Bridge engineering TG1-470 Building construction TH1-9745 Ali Kachooee Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
description	Concentric bracings (CB) are one of the most prevalent lateral load bearing systems in steel structures. These bracings have a remarkable lateral stiffness and strength, but their compressive buckling prevents them from being ductile and absorbing optimal energy. Consequently, in recent decades, researchers have conducted extensive studies to improve the concentric bracing behavior, which resulted in the development of different design and execution methods for concentric bracings. In this paper, by using numerical and experimental studies, a new method is proposed to improve the behavior of concentric bracings. In this method, a local fuse (LF) is used along the brace. This fuse is restrained by auxiliary elements (AE) to prevent its local buckling under compressive load. This makes the brace behaves in a similar manner in both tensile and compressive cyclic loads, resulting in ductile behavior and high-energy absorption. In this study, by using numerical results, an investigation is done for proper position of the fuse along the braces and its optimal shape and length. In addition, an analytical study has been performed comparing the structural behavior of concentric braces with LF-AE braces. The results have been demonstrated that LF-AE braces have better performance than concentric braces.
format	article
author	Ali Kachooee
author_facet	Ali Kachooee
author_sort	Ali Kachooee
title	Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
title_short	Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
title_full	Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
title_fullStr	Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
title_full_unstemmed	Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading
title_sort	investigation of the concentric bracings response equipped with lateral restricted local fuse under cyclic loading
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/229d4fc5467549cf8ead0744341db43f
work_keys_str_mv	AT alikachooee investigationoftheconcentricbracingsresponseequippedwithlateralrestrictedlocalfuseundercyclicloading
_version_	1718441551593472000

Investigation of the Concentric Bracings Response Equipped with Lateral Restricted Local Fuse under Cyclic Loading

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