Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame

The aim of this study was to investigate the length of the gusset-plate hinge zone proposed by Iranian National Building Code (Part 10) for Special concentrically braced frames (SCBF). For this purpose, numerical studies were done on the seismic behavior of this frames using ABAQUS software. Numeric...

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Autores principales:	Mohammad Reza Adib Ramezani, Alireza Ghelichkhani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	special concentrically braced frame single and double gusset plate tapered gusset plate length of the gusset-plate hinge zone ductility capacity static cyclic loading iranian national building code (part 10) Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/6e508e021f0a42cb9d6cf88bb780a666
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spelling	oai:doaj.org-article:6e508e021f0a42cb9d6cf88bb780a6662021-11-08T15:53:49ZSeismic Behavior of End Connection Plates in Concentrically Steel Braced Frame2476-39772538-261610.22065/jsce.2018.134111.1577https://doaj.org/article/6e508e021f0a42cb9d6cf88bb780a6662020-04-01T00:00:00Zhttps://www.jsce.ir/article_79382_c54f0e1cc96ca5cf343f9b2708f84d72.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The aim of this study was to investigate the length of the gusset-plate hinge zone proposed by Iranian National Building Code (Part 10) for Special concentrically braced frames (SCBF). For this purpose, numerical studies were done on the seismic behavior of this frames using ABAQUS software. Numerical modelling procedure is validated using the reproduction of the results of an experimental study. A five story building with Special diagonal concentrically braced frames was modeled in ETABS software and a portal frame from the first story of the building was considered for investigation. The detailing of the frame was designed for tension and compression based on Iranian code. Seismic behavior of single and double tapered gusset plates with various connection angles and dimensions as well as various length of the hinge zones including -3t, -2t, -t, 0t, t, 2t and 3t were investigated using nonlinear cyclic deformation loading to the ATC-24 test protocol.Seismic behavior of the connections were studied based on ductility, number of cycles before failure, drift before failure and tension and compression strength.Evaluation of the failure limit of the models was carried out using the concept of equivalent plastic strain. Based on the results of the investigated models it can be said that: It is not recommended to use double gusset plates instead of single ones for SCBFs. Gusset plates with a 15 degree angle of inclination have higher ductility capacity and better seismic behavior than ones with a 25 degree angle of inclination. For single gusset plates with a 15 degree angle of inclination, the appropriate length of the hinge zone is -2t, which is not consistent with Iranian code. For single gusset plates with a 25 degree angle of inclination, the appropriate length of the hinge zone is 2t, which is consistent with the Iranian code.Mohammad Reza Adib RamezaniAlireza GhelichkhaniIranian Society of Structrual Engineering (ISSE)articlespecial concentrically braced framesingle and double gusset platetapered gusset platelength of the gusset-plate hinge zoneductility capacitystatic cyclic loadingiranian national building code (part 10)Bridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 1 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	special concentrically braced frame single and double gusset plate tapered gusset plate length of the gusset-plate hinge zone ductility capacity static cyclic loading iranian national building code (part 10) Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	special concentrically braced frame single and double gusset plate tapered gusset plate length of the gusset-plate hinge zone ductility capacity static cyclic loading iranian national building code (part 10) Bridge engineering TG1-470 Building construction TH1-9745 Mohammad Reza Adib Ramezani Alireza Ghelichkhani Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
description	The aim of this study was to investigate the length of the gusset-plate hinge zone proposed by Iranian National Building Code (Part 10) for Special concentrically braced frames (SCBF). For this purpose, numerical studies were done on the seismic behavior of this frames using ABAQUS software. Numerical modelling procedure is validated using the reproduction of the results of an experimental study. A five story building with Special diagonal concentrically braced frames was modeled in ETABS software and a portal frame from the first story of the building was considered for investigation. The detailing of the frame was designed for tension and compression based on Iranian code. Seismic behavior of single and double tapered gusset plates with various connection angles and dimensions as well as various length of the hinge zones including -3t, -2t, -t, 0t, t, 2t and 3t were investigated using nonlinear cyclic deformation loading to the ATC-24 test protocol.Seismic behavior of the connections were studied based on ductility, number of cycles before failure, drift before failure and tension and compression strength.Evaluation of the failure limit of the models was carried out using the concept of equivalent plastic strain. Based on the results of the investigated models it can be said that: It is not recommended to use double gusset plates instead of single ones for SCBFs. Gusset plates with a 15 degree angle of inclination have higher ductility capacity and better seismic behavior than ones with a 25 degree angle of inclination. For single gusset plates with a 15 degree angle of inclination, the appropriate length of the hinge zone is -2t, which is not consistent with Iranian code. For single gusset plates with a 25 degree angle of inclination, the appropriate length of the hinge zone is 2t, which is consistent with the Iranian code.
format	article
author	Mohammad Reza Adib Ramezani Alireza Ghelichkhani
author_facet	Mohammad Reza Adib Ramezani Alireza Ghelichkhani
author_sort	Mohammad Reza Adib Ramezani
title	Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
title_short	Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
title_full	Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
title_fullStr	Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
title_full_unstemmed	Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame
title_sort	seismic behavior of end connection plates in concentrically steel braced frame
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/6e508e021f0a42cb9d6cf88bb780a666
work_keys_str_mv	AT mohammadrezaadibramezani seismicbehaviorofendconnectionplatesinconcentricallysteelbracedframe AT alirezaghelichkhani seismicbehaviorofendconnectionplatesinconcentricallysteelbracedframe
_version_	1718441573286412288

Seismic Behavior of End Connection Plates in Concentrically Steel Braced Frame

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