Study of stiffness effect of panel zone on ductility of RBS joint

Beam to column joint fractures on steel structures in Northridge earthquake produced some worries about the reliability of steel connections. Brittle fracture of bending joints indicated that ductility of construction materials doesn't ensure structure ductility, and structure geometry, loading...

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Main Authors:	Ghaznavi Oskouei, Amin, Gerami, Mohsen
Format:	Article
Published:	Penerbit Universiti Tun Hussein Onn Malaysia 2010
Subjects:	TA630-695 Structural engineering (General)
Online Access:	http://penerbit.uthm.edu.my/ejournal/ http://penerbit.uthm.edu.my/ejournal/ http://eprints.uthm.edu.my/524/1/IJSCET_1_F1.pdf

id	uthm-524
recordtype	eprints
spelling	uthm-5242011-12-20T06:55:53Z Study of stiffness effect of panel zone on ductility of RBS joint Ghaznavi Oskouei, Amin Gerami, Mohsen TA630-695 Structural engineering (General) Beam to column joint fractures on steel structures in Northridge earthquake produced some worries about the reliability of steel connections. Brittle fracture of bending joints indicated that ductility of construction materials doesn't ensure structure ductility, and structure geometry, loading type, and other specifications influence structure behavior. Stress (strain) concentration due to seismic moment changes may prevent distribution of plastic zone around joint, and this can be a justification for joint brittle fracture. RBS joint is one that came after Northridge earthquake, which is known as dog bone joint. In this kind of joint, by minimizing section of beam flange near support area (in which possibility of plastic joint formation is more), plastic joint is transferred from column side and joint area to inside beam and at proper interval with joint. To design this joint and achieve the goal of formation and development of plastic hinge in reduced area, many parameters must be considered. Panel zone is one of the most effective parts of a rigid steel joint. Resistance and stiffness value of panel zone has a large effect on behavior and performance of joints. This paper studies these kinds of joints and effects of changes in panel zone using cross-shaped substructure and ANSYS software. Regarding to the studies it was indicated that weak panel zone doesn't develop plastic hinge in beam, so collapses merely occurs in panel zone and joint area. In specimens with strong panel zone, because of elastic behavior of panel zone, all substructure energy is wasted in beam, so panel zone is not used efficiently. Penerbit Universiti Tun Hussein Onn Malaysia 2010 Article PeerReviewed application/pdf http://eprints.uthm.edu.my/524/1/IJSCET_1_F1.pdf http://penerbit.uthm.edu.my/ejournal/ Ghaznavi Oskouei, Amin and Gerami, Mohsen (2010) Study of stiffness effect of panel zone on ductility of RBS joint. International Journal of Sustainable Construction Engineering & Technology, 1 (1). pp. 1-8. ISSN 2180-3242 http://eprints.uthm.edu.my/524/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Institutional Repository
collection	Online Access
topic	TA630-695 Structural engineering (General)
spellingShingle	TA630-695 Structural engineering (General) Ghaznavi Oskouei, Amin Gerami, Mohsen Study of stiffness effect of panel zone on ductility of RBS joint
description	Beam to column joint fractures on steel structures in Northridge earthquake produced some worries about the reliability of steel connections. Brittle fracture of bending joints indicated that ductility of construction materials doesn't ensure structure ductility, and structure geometry, loading type, and other specifications influence structure behavior. Stress (strain) concentration due to seismic moment changes may prevent distribution of plastic zone around joint, and this can be a justification for joint brittle fracture. RBS joint is one that came after Northridge earthquake, which is known as dog bone joint. In this kind of joint, by minimizing section of beam flange near support area (in which possibility of plastic joint formation is more), plastic joint is transferred from column side and joint area to inside beam and at proper interval with joint. To design this joint and achieve the goal of formation and development of plastic hinge in reduced area, many parameters must be considered. Panel zone is one of the most effective parts of a rigid steel joint. Resistance and stiffness value of panel zone has a large effect on behavior and performance of joints. This paper studies these kinds of joints and effects of changes in panel zone using cross-shaped substructure and ANSYS software. Regarding to the studies it was indicated that weak panel zone doesn't develop plastic hinge in beam, so collapses merely occurs in panel zone and joint area. In specimens with strong panel zone, because of elastic behavior of panel zone, all substructure energy is wasted in beam, so panel zone is not used efficiently.
format	Article
author	Ghaznavi Oskouei, Amin Gerami, Mohsen
author_facet	Ghaznavi Oskouei, Amin Gerami, Mohsen
author_sort	Ghaznavi Oskouei, Amin
title	Study of stiffness effect of panel zone on ductility of RBS joint
title_short	Study of stiffness effect of panel zone on ductility of RBS joint
title_full	Study of stiffness effect of panel zone on ductility of RBS joint
title_fullStr	Study of stiffness effect of panel zone on ductility of RBS joint
title_full_unstemmed	Study of stiffness effect of panel zone on ductility of RBS joint
title_sort	study of stiffness effect of panel zone on ductility of rbs joint
publisher	Penerbit Universiti Tun Hussein Onn Malaysia
publishDate	2010
url	http://penerbit.uthm.edu.my/ejournal/ http://penerbit.uthm.edu.my/ejournal/ http://eprints.uthm.edu.my/524/1/IJSCET_1_F1.pdf
first_indexed	2018-09-05T10:42:43Z
last_indexed	2018-09-05T10:42:43Z
_version_	1610763903004835840

Study of stiffness effect of panel zone on ductility of RBS joint

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