Development of Inelastic Panel Zone Database
Publication: Journal of Structural Engineering
Volume 147, Issue 4
Abstract
This data paper reviews the experimental research on fully restrained beam-to-column connections for steel moment-resisting frames (MRFs) over the last worldwide and presents an experimental database consisting of 100 tests with an emphasis on those exhibiting inelastic panel zone behavior. The collected data, which is organized in a consistent format, includes full digitized histories of the local panel zone shear force–shear distortion as well as the global force–displacement hysteretic diagrams of each experiment. In most cases the original data was only available in paper format. The gathered dataset suggests that the existing panel zone models that are currently used for the seismic design of steel MRFs deviate, in some cases considerably, from the measured response quantities of an actual panel zone. These involve the panel zone stiffness and shear resistance at selected inelastic shear distortions of interest to the engineering profession. The assembled inelastic panel zone database provides ranges in which post-Northridge beam-to-column connections, which exhibit considerable inelastic deformations within the panel zone web, may achieve lateral drift demands larger than 4% without experiencing premature fracture. The assembled dataset constitutes an important source for validation of continuum finite-element models that could aid the simulation-based engineering design of steel MRF beam-to-column connections designed with a balanced design approach. The database is made available to the engineering and research communities through a publicly available data repository.
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Data Availability Statement
The developed database along with the data extraction MATLAB procedures and the validated high-fidelity continuum finite-element model presented in this data paper are publicly available in the Zenodo data repository (doi: https://www.doi.org/10.5281/zenodo.3689756, Skiadopoulos and Lignos 2020).
Acknowledgments
This study is based on work supported by a Nippon Steel Corporation collaborative grant as well as an EPFL internal grant for the first author. The financial support is gratefully acknowledged. The authors would like to sincerely thank Prof. Ahmed Elkady from University of Southampton for the invaluable contribution to the data interpretation, Mr. Hammad El-Jisr (doctoral assistant at EPFL) for providing collected data on composite steel beam subassembly tests and Prof. Bozidar Stojadinovic from ETH-Zürich, for providing test data for the development of the inelastic panel zone database. Any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of sponsors.
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Published In
Journal of Structural Engineering
Volume 147 • Issue 4 • April 2021
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© 2021 American Society of Civil Engineers.
History
Received: Mar 1, 2020
Accepted: Oct 27, 2020
Published online: Jan 19, 2021
Published in print: Apr 1, 2021
Discussion open until: Jun 19, 2021
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