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2012 (Vol. 4, Issue: 14)
Article Information:

Analysis of Seismic Performance of Steel Moment Connection with Welded Haunch and Cover Plate

Sun Yuping and Jiang Dingwei
Corresponding Author:  Sun Yuping 

Key words:  Cover-plate-haunch connection, ductility factor, energy dissipation, equivalent viscous damping coefficient, haunch connection, hysteretic behavior, plastic hinge
Vol. 4 , (14): 2199-2204
Submitted Accepted Published
March 10, 2012 April 04, 2012 July 15, 2012
Abstract:

In this study, a new connection joint of cover-plate-haunch connection was brought forward on the basis of improving haunch connection and cover plate connection. This kind of connection joint not only overcomes the shortcomings that bilateral haunch connections affect the flatness of floor and the interior appearance, but also strengthens the connection performance. ABAQUS finite element software is used to study node stress, plastic zone distribution, ultimate bearing capacity and hysteretic behavior. The result of new model is compared with past model. The results indicate that the new connection can effectively reduce stress concentration on butt weld of the joint, make the plastic hinge away from the connection and lower the possibility of brittle fracture. The ultimate bearing capacity of new connection can be increased 23% than normal connection, equivalent viscous damping coefficient and ductility factor is respectively 0.321 and 4.06, therefore the new connection is theoretically feasible and practical in application as well as excellent performance in earthquakes and the ideal energy dissipation.
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  Cite this Reference:
Sun Yuping and Jiang Dingwei, 2012. Analysis of Seismic Performance of Steel Moment Connection with Welded Haunch and Cover Plate.  Research Journal of Applied Sciences, Engineering and Technology, 4(14): 2199-2204.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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