Cover-Plate and Flange-Plate Steel Moment-Resisting Connections
Publication: Journal of Structural Engineering
Volume 128, Issue 4
Abstract
Nonlinear finite-element modeling of steel moment-resisting connections reinforced with steel plates was undertaken as part of the second phase of the SAC project. Five cover-plate and five flange-plate connections of columns to beams were studied. Connections reinforced with cover plates or flange plates will perform substantially better than unreinforced connections. Flange-plate connections are likely superior to cover-plate connections. Rectangular reinforcing plates are superior to trapezoidal shaped plates. Three-sided fillet welds should be used to join reinforcing plates to beam flanges. Bracing the beam flanges outside the plastic hinge remote from the column face to delay lateral-torsional buckling is not necessary. Beam web reinforcement at the column face does not affect the transfer of shear force from the reinforced beam to the column. Beam theory should not be used to estimate stresses in reinforced connections.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 128 • Issue 4 • April 2002
Pages: 474 - 482
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Dec 28, 2000
Accepted: Aug 20, 2001
Published online: Apr 1, 2002
Published in print: Apr 2002
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