Analytical Modeling of Dual Panel Zone in Haunch Repaired Steel MRFs
Publication: Journal of Structural Engineering
Volume 123, Issue 1
Abstract
An analytical procedure is presented to model the stiffness and strength of dual panel zones; the dual panel zone in a steel column is formed when the conventional beam-to-column connection in steel moment-resisting frames (MRFs) is enhanced for seismic performance by adding haunches on either or both sides of the column. Based on the results of finite element analysis, a relationship between the unbalanced beam moment and shear deformations in the upper and lower panel zones is established first. Treating the dual panel zone as a two-spring serial system in shear, the equivalent rotational stiffness based on a secant stiffness definition, the yield strength, and the postelastic behavior are derived. The analytical predictions correlate well with the finite element analysis results and available full-scale test results.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 1 • January 1997
Pages: 20 - 29
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Jan 1, 1997
Published in print: Jan 1997
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