Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames

After poor performance and brittle fracture of moment connections in the 1994 earthquake in Northridge, researchers proposed new connections to improve the behavior of steel moment frames. Generally, these modified connections can be classified into two main categories: reduced beam section (RBS) an...

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Autores principales:	امیراحمد هدایت, Bahram Taheri
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	"nonlinear behavior" "rbs connections" "nonlinear static procedure" "opensees software" "over-strength factor" Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/65680fbf376346389fd2e9f300c13492
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spelling	oai:doaj.org-article:65680fbf376346389fd2e9f300c134922021-11-08T15:53:49ZInvestigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames2476-39772538-261610.22065/jsce.2018.144571.1644https://doaj.org/article/65680fbf376346389fd2e9f300c134922020-04-01T00:00:00Zhttps://www.jsce.ir/article_79391_a53928b64bad31e2625a4b3c0b4005c9.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616After poor performance and brittle fracture of moment connections in the 1994 earthquake in Northridge, researchers proposed new connections to improve the behavior of steel moment frames. Generally, these modified connections can be classified into two main categories: reduced beam section (RBS) and other than RBS connections such as bolted flange plate, bolted unstiffened and stiffened extended end-plate moment, and welded unreinforced flange-welded web moment connections. In this study the behavior of special steel moment frames using each of these two types of connections was investigated. For this purpose, several steel moment frames made up of these two types of connections were analyzed using Opensees software through nonlinear static procedure. For modeling, the behavior of connections was modeled using Bilin material. Then, using FEMAP696, the seismic parameters of all moment frames were determined and compared. Results indicated that the moment frames of RBS connections have higher seismic performance than the other moment frames. Furthermore, based on the numerical results, regardless of the connection type, it seems that 3 is not an appropriate value for the over-strength factor. Based on these numerical results, values equal to 4 and 5 can be proposed for the over-strength factor for moment frames of RBS and other than RBS connections respectively.امیراحمد هدایتBahram TaheriIranian Society of Structrual Engineering (ISSE)article"nonlinear behavior""rbs connections""nonlinear static procedure""opensees software""over-strength factor"Bridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 1 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	"nonlinear behavior" "rbs connections" "nonlinear static procedure" "opensees software" "over-strength factor" Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	"nonlinear behavior" "rbs connections" "nonlinear static procedure" "opensees software" "over-strength factor" Bridge engineering TG1-470 Building construction TH1-9745 امیراحمد هدایت Bahram Taheri Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
description	After poor performance and brittle fracture of moment connections in the 1994 earthquake in Northridge, researchers proposed new connections to improve the behavior of steel moment frames. Generally, these modified connections can be classified into two main categories: reduced beam section (RBS) and other than RBS connections such as bolted flange plate, bolted unstiffened and stiffened extended end-plate moment, and welded unreinforced flange-welded web moment connections. In this study the behavior of special steel moment frames using each of these two types of connections was investigated. For this purpose, several steel moment frames made up of these two types of connections were analyzed using Opensees software through nonlinear static procedure. For modeling, the behavior of connections was modeled using Bilin material. Then, using FEMAP696, the seismic parameters of all moment frames were determined and compared. Results indicated that the moment frames of RBS connections have higher seismic performance than the other moment frames. Furthermore, based on the numerical results, regardless of the connection type, it seems that 3 is not an appropriate value for the over-strength factor. Based on these numerical results, values equal to 4 and 5 can be proposed for the over-strength factor for moment frames of RBS and other than RBS connections respectively.
format	article
author	امیراحمد هدایت Bahram Taheri
author_facet	امیراحمد هدایت Bahram Taheri
author_sort	امیراحمد هدایت
title	Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
title_short	Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
title_full	Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
title_fullStr	Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
title_full_unstemmed	Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
title_sort	investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/65680fbf376346389fd2e9f300c13492
work_keys_str_mv	AT ạmyrạḥmdhdạyt investigationoftheeffectofrigidconnectiontypeonthenonlinearbehaviorandoverstrengthfactorofsteelspecialmomentframes AT bahramtaheri investigationoftheeffectofrigidconnectiontypeonthenonlinearbehaviorandoverstrengthfactorofsteelspecialmomentframes
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Investigation of the effect of rigid connection type on the nonlinear behavior and over-strength factor of steel special moment frames

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