Analytical Evaluation of the Vulnerability of RC Frames for Progressive Collapse Caused by the Loss of a Corner Column
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 1
Abstract
In the past decades, several guidelines have been developed for designs against progressive collapse based on a number of experimental and numerical studies that have been conducted. However, the majority of the previous experimental and numerical investigations focused on the response of buildings under the scenarios of loss of interior or exterior columns. However, the loss of a corner column in the event of a terrorist attack is more likely to trigger progressive collapse given the paucity of surrounding elements that could help to redistribute the axial force initially resisted by the lost corner column. In order to investigate the progressive collapse of RC frames under the loss of a corner column scenario, an analytical model was proposed and subsequently validated through comparison with the experimental results. The influences of the beam longitudinal reinforcement ratio, beam depth, beam width, column width, and joint transverse reinforcement ratio on the progressive collapse performance of RC frames were also parametrically studied via the validated analytical model.
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Acknowledgments
This research was supported by a research grant provided by the Defence Science & Technology Agency (DSTA), Singapore. Any opinions, findings, and conclusions expressed in this paper are those of the writers and do not necessarily reflect the view of DSTA, Singapore.
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Published In
Journal of Performance of Constructed Facilities
Volume 29 • Issue 1 • February 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Dec 10, 2012
Accepted: Jun 26, 2013
Published online: Jun 28, 2013
Discussion open until: Nov 4, 2014
Published in print: Feb 1, 2015
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