NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION

Eccentrically braced frames (EBFs) combine the high elastic stiffness of concentrically braced frames with the ductility and stable energy dissipation of moment resisting frames. In these types of frames energy often dissipated through links that vary from short shear yielding to long flexural yield...

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Main Authors: Fakhroddin Ahmadi Danesh Ashtiyani, ali naserifar
Format: Article
Language:fas
Published: Semnan University 2017-08-01
Series:مجله مدل سازی در مهندسی
Subjects:
Online Access:https://modelling.semnan.ac.ir/article_2542_ed5b43165d01855657213660cc9400b2.pdf
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author Fakhroddin Ahmadi Danesh Ashtiyani
ali naserifar
author_facet Fakhroddin Ahmadi Danesh Ashtiyani
ali naserifar
author_sort Fakhroddin Ahmadi Danesh Ashtiyani
collection DOAJ
description Eccentrically braced frames (EBFs) combine the high elastic stiffness of concentrically braced frames with the ductility and stable energy dissipation of moment resisting frames. In these types of frames energy often dissipated through links that vary from short shear yielding to long flexural yielding link. Link-to-column connections in eccentrically braced frames must transmit large moments and shear forces to facilitate link rotation. Previous researches has shown that link-to-column connections in long links are prone to failure at low drift levels due to their susceptibility to fracture at the link flange-to-column connections and they arenât applicable in sever seismic environments. To overcome this problem it is necessary to keep away stress and strain concentration from the ends of link connections. The use of link with reduced section can transmit plastic zone to reduced part and prevent connection failure. This paper investigates the application of RBS method in long links and studies the behavior of reduced long link to column connections. The analysis is conducted using the ABAQUS FEM software package. The analytical results show that this technique keeps away stress and strain concentration from the end of link beam near the face of column to some extent and improve the connection behavior.
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spelling doaj.art-2870547583684b8d99808df373c9d0f92024-02-23T19:03:17ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382017-08-01154915116010.22075/jme.2017.25422542NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTIONFakhroddin Ahmadi Danesh Ashtiyani0ali naserifar1دانشگاهدانشگاهEccentrically braced frames (EBFs) combine the high elastic stiffness of concentrically braced frames with the ductility and stable energy dissipation of moment resisting frames. In these types of frames energy often dissipated through links that vary from short shear yielding to long flexural yielding link. Link-to-column connections in eccentrically braced frames must transmit large moments and shear forces to facilitate link rotation. Previous researches has shown that link-to-column connections in long links are prone to failure at low drift levels due to their susceptibility to fracture at the link flange-to-column connections and they arenât applicable in sever seismic environments. To overcome this problem it is necessary to keep away stress and strain concentration from the ends of link connections. The use of link with reduced section can transmit plastic zone to reduced part and prevent connection failure. This paper investigates the application of RBS method in long links and studies the behavior of reduced long link to column connections. The analysis is conducted using the ABAQUS FEM software package. The analytical results show that this technique keeps away stress and strain concentration from the end of link beam near the face of column to some extent and improve the connection behavior.https://modelling.semnan.ac.ir/article_2542_ed5b43165d01855657213660cc9400b2.pdflink beamrbsnumerical analysisconnection
spellingShingle Fakhroddin Ahmadi Danesh Ashtiyani
ali naserifar
NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
مجله مدل سازی در مهندسی
link beam
rbs
numerical analysis
connection
title NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
title_full NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
title_fullStr NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
title_full_unstemmed NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
title_short NUMERICALLY INVESTIGATION OF THE BEHAVIOR OF LONG LINK-TO-COLUMN CONNECTIONS WITH REDUCED SECTION
title_sort numerically investigation of the behavior of long link to column connections with reduced section
topic link beam
rbs
numerical analysis
connection
url https://modelling.semnan.ac.ir/article_2542_ed5b43165d01855657213660cc9400b2.pdf
work_keys_str_mv AT fakhroddinahmadidaneshashtiyani numericallyinvestigationofthebehavioroflonglinktocolumnconnectionswithreducedsection
AT alinaserifar numericallyinvestigationofthebehavioroflonglinktocolumnconnectionswithreducedsection