Evaluation of FEMA-350 Seismic Provisions for Steel Panel Zones
Publication: Journal of Structural Engineering
Volume 131, Issue 2
Abstract
Steel panel zone design provisions have undergone large changes in the past four decades. The recently introduced FEMA-350 (2000) guidelines are substantially different from previous provisions, and are no longer a function of the plastic strengths of the panel zone and adjoining beams. Rather, they are based on the premise that the framing beams and the panel zone both yield simultaneously to promote controlled inelastic participation of both components. This paper evaluates and discusses the new provisions based on an examination of published test data and the results of transient analyses of buildings with four-, eight-, and sixteen-story moment resisting steel frames. The limited test results reviewed do not confirm the adequacy of the new panel zone provisions and furthermore suggest that panel zone deformation demands could be affected by connection detailing. The frame analysis results show that the FEMA-350 provisions lead to a rather low level of panel zone participation. A discussion of design implications and research needs is provided.
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Acknowledgments
Financial support for this research was provided in part by the U.S. National Science Foundation (Grants No. CMS 9870927 and 0296210) and the Departments of Civil and Environmental Engineering at the Univ. of Michigan and Univ. of Central Florida. The opinions stated here are those of the writers and do not necessarily reflect the views of the sponsors.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 2 • February 2005
Pages: 250 - 258
Copyright
© 2005 ASCE.
History
Received: Apr 16, 2003
Accepted: May 11, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
Notes
Note. Associate Editor: Christopher J. Earls
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