Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames

In a knee steel braced frame the main diagonal braces are connected to short knee elements. The knee elements act sacrificially and reducing the demands on the main structure during an earthquake, and can be replaced after the earthquake. However, careful design of the knee elements is required to e...

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Autores principales:	mohammad safi, Iraj Gholami Alam, Ehsan Darvishan, saeed beheshti
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	experimental knee element loading cyclic brace frame Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/613e596d249042d79e8b9698f6565e36
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spelling	oai:doaj.org-article:613e596d249042d79e8b9698f6565e362021-11-08T15:53:21ZExperimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames2476-39772538-261610.22065/jsce.2018.127235.1521https://doaj.org/article/613e596d249042d79e8b9698f6565e362020-09-01T00:00:00Zhttps://www.jsce.ir/article_70572_53bb8c22c66ba20b73a56d765b08b2ad.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In a knee steel braced frame the main diagonal braces are connected to short knee elements. The knee elements act sacrificially and reducing the demands on the main structure during an earthquake, and can be replaced after the earthquake. However, careful design of the knee elements is required to ensure that they are able to absorb energy through repeated large plastic deformation without suffering collapse or instability. A program of laboratory testing has been undertaken in order to optimize the design and useful results from experimental tests are presented in this paper. For testing, the knee elements were mounted horizontally in a reaction frame and loaded vertically by a hydraulic actuator. In this research one kind of new weakening symmetrical perforated knee element are studied. Extensive experimental program of experimental testing by applied cyclic loading behavior on perforated knee element fuse and compare that’s result with a solid element fuse has been undertaken. ANSYS software was used for simulation and the numerical analyses in order to verified experimental tests for specimens. Results show that applied cyclic loading on both knee specimens produce sustain stable hysteresis loops and it is shown that excellent performance to absorb energy can be achieved using perforated knee elements.mohammad safiIraj Gholami AlamEhsan Darvishansaeed beheshtiIranian Society of Structrual Engineering (ISSE)articleexperimentalknee elementloadingcyclicbraceframeBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 3, Pp 114-128 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	experimental knee element loading cyclic brace frame Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	experimental knee element loading cyclic brace frame Bridge engineering TG1-470 Building construction TH1-9745 mohammad safi Iraj Gholami Alam Ehsan Darvishan saeed beheshti Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
description	In a knee steel braced frame the main diagonal braces are connected to short knee elements. The knee elements act sacrificially and reducing the demands on the main structure during an earthquake, and can be replaced after the earthquake. However, careful design of the knee elements is required to ensure that they are able to absorb energy through repeated large plastic deformation without suffering collapse or instability. A program of laboratory testing has been undertaken in order to optimize the design and useful results from experimental tests are presented in this paper. For testing, the knee elements were mounted horizontally in a reaction frame and loaded vertically by a hydraulic actuator. In this research one kind of new weakening symmetrical perforated knee element are studied. Extensive experimental program of experimental testing by applied cyclic loading behavior on perforated knee element fuse and compare that’s result with a solid element fuse has been undertaken. ANSYS software was used for simulation and the numerical analyses in order to verified experimental tests for specimens. Results show that applied cyclic loading on both knee specimens produce sustain stable hysteresis loops and it is shown that excellent performance to absorb energy can be achieved using perforated knee elements.
format	article
author	mohammad safi Iraj Gholami Alam Ehsan Darvishan saeed beheshti
author_facet	mohammad safi Iraj Gholami Alam Ehsan Darvishan saeed beheshti
author_sort	mohammad safi
title	Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
title_short	Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
title_full	Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
title_fullStr	Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
title_full_unstemmed	Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
title_sort	experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/613e596d249042d79e8b9698f6565e36
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Experimental modeling for effect of knee fuse perforated web on performance of structural knee fuse subjected to cyclic loading in steel knee braced frames

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