Ductility of Concrete‐Filled Steel Box Columns under Cyclic Loading
Publication: Journal of Structural Engineering
Volume 120, Issue 7
Abstract
Steel bridge piers under cyclic loading due to strong earthquake motion should be designed considering not only the strength but also the ductility capacity. Steel sections with concrete infill are being increasingly used as structural members, since filling the steel section with concrete results in an increase in both strength and ductility without increasing the section size. In this paper, the results of 11 cantilever thin‐walled steel box column specimens tested under constant compressive axial loads and cyclic lateral loads are presented. The test specimens were of unstiffened and stiffened box sections. To examine the possibility of increasing the column's ductility capacity, seven partially concrete‐filled column specimens were tested. The test results were evaluated using both energy‐absorption capacity and a newly defined ductility factor that takes into account the effect of plate local buckling. It has been shown that the concrete‐filled columns increase both ductility and energy‐absorption capacity significantly.
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Information
Published In
Journal of Structural Engineering
Volume 120 • Issue 7 • July 1994
Pages: 2021 - 2040
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Aug 20, 1992
Published online: Jul 1, 1994
Published in print: Jul 1994
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