Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies

The concentrically braced system is one of the most common lateral loadbearing systems among the steel structures. This system has various apparent forms where the main characteristic of them all is their significant stiffness and lateral strength. The weakness of these systems is buckling in compre...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ali kachooee, Mohammad Ali Kafi, Mohsen Gerami
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	steel structures concentric brace buckling local fuse seismic response ductility energy dissipation capacity Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/3ff3c0f4a5de4505a578967cf62467d4
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3ff3c0f4a5de4505a578967cf62467d4
record_format	dspace
spelling	oai:doaj.org-article:3ff3c0f4a5de4505a578967cf62467d42021-11-08T15:53:06ZImproving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies2476-39772538-261610.22065/jsce.2018.120353.1477https://doaj.org/article/3ff3c0f4a5de4505a578967cf62467d42020-03-01T00:00:00Zhttps://www.jsce.ir/article_67244_0d55e88f7c583aa17aeacd4615484500.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The concentrically braced system is one of the most common lateral loadbearing systems among the steel structures. This system has various apparent forms where the main characteristic of them all is their significant stiffness and lateral strength. The weakness of these systems is buckling in compression. This issue causes that concentric bracings have low compressive loadbearing capacity together with undesirable ductility and limited energy dissipation capacity. In this study to solve this problem use has been made of a heuristic method. In this method a local fuse has been used in the middle of bracing where its periphery and inner circumference have been covered with an auxiliary casing within a casing. The local fuse is designed in a way that after yielding, the bracing undergoes local buckling at this area. But presence of an auxiliary element placed around the fuse prevents this local buckling and thus the bracing would exhibit almost a symmetric behavior during compressive and tensile loadings. The results of experimental and numerical researches of this study indicate the better performance of this structural system in terms of ductility and energy dissipation capacity compared to the common concentric braces. The suggested system can be utilized to reduce the capacity of bracing connection which results in reduced costs of the project.Ali kachooeeMohammad Ali KafiMohsen GeramiIranian Society of Structrual Engineering (ISSE)articlesteel structuresconcentric bracebucklinglocal fuseseismic responseductilityenergy dissipation capacityBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 1, Pp 199-217 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	steel structures concentric brace buckling local fuse seismic response ductility energy dissipation capacity Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	steel structures concentric brace buckling local fuse seismic response ductility energy dissipation capacity Bridge engineering TG1-470 Building construction TH1-9745 Ali kachooee Mohammad Ali Kafi Mohsen Gerami Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
description	The concentrically braced system is one of the most common lateral loadbearing systems among the steel structures. This system has various apparent forms where the main characteristic of them all is their significant stiffness and lateral strength. The weakness of these systems is buckling in compression. This issue causes that concentric bracings have low compressive loadbearing capacity together with undesirable ductility and limited energy dissipation capacity. In this study to solve this problem use has been made of a heuristic method. In this method a local fuse has been used in the middle of bracing where its periphery and inner circumference have been covered with an auxiliary casing within a casing. The local fuse is designed in a way that after yielding, the bracing undergoes local buckling at this area. But presence of an auxiliary element placed around the fuse prevents this local buckling and thus the bracing would exhibit almost a symmetric behavior during compressive and tensile loadings. The results of experimental and numerical researches of this study indicate the better performance of this structural system in terms of ductility and energy dissipation capacity compared to the common concentric braces. The suggested system can be utilized to reduce the capacity of bracing connection which results in reduced costs of the project.
format	article
author	Ali kachooee Mohammad Ali Kafi Mohsen Gerami
author_facet	Ali kachooee Mohammad Ali Kafi Mohsen Gerami
author_sort	Ali kachooee
title	Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
title_short	Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
title_full	Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
title_fullStr	Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
title_full_unstemmed	Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
title_sort	improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/3ff3c0f4a5de4505a578967cf62467d4
work_keys_str_mv	AT alikachooee improvingofpostbucklingbehaviorconcentricbracesbyusingofrestrictedfusebasedonexperimentalandnumericalstudies AT mohammadalikafi improvingofpostbucklingbehaviorconcentricbracesbyusingofrestrictedfusebasedonexperimentalandnumericalstudies AT mohsengerami improvingofpostbucklingbehaviorconcentricbracesbyusingofrestrictedfusebasedonexperimentalandnumericalstudies
_version_	1718441561017024512

Improving of post buckling behavior concentric braces by using of restricted fuse based on experimental and numerical studies

Ejemplares similares