Experimental Investigation of Beam-Through Steel Frames with Self-Centering Modular Panels
Publication: Journal of Structural Engineering
Volume 143, Issue 5
Abstract
The beam-through steel frame with self-centering modular panels (BTSF-SCMPs) is a new seismic load–resisting system that combines the ease of assembly of the beam-through main frame with the lateral stiffness and recentering capabilities of SCMPs. The SCMP is designed as a posttensioned steel moment-resisting frame, and in this study, three types of SCMPs with slightly different configurations were fabricated and tested. Columns of the main frame are floor-by-floor connected to the through beam, whereas the prefabricated SCMPs are installed to the prespecified bays of the main frame. Tension-only bracings installed to the main frame or SCMP are intended to serve as replaceable fuse elements. A series of experimental tests were conducted to investigate the cyclic loading behavior of the BTSF-SCMPs with three different types of SCMPs. The experimental results show that the BTSF-SCMP is capable of recentering upon unloading while retaining moderate energy dissipation capacity provided by the tension-only bracings. Also, because of the SCMP, after severe cyclic loading, the BTSF-SCMP system with newly replaced bracings and reused main frame exhibits almost identical stiffness, strength, and recentering ability as that of the original system.
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Acknowledgments
Financial support for this study was provided by the State Key Laboratory of Disaster Reduction in Civil Engineering under Open Fund Award No. SLDRCE14-04 and the “Shuguang Program” supported by the Shanghai Education Development Foundation and Shanghai Municipal Education Commission. Any opinions, findings, conclusions, and recommendations presented in this paper are those of the authors and do not necessarily reflect the views of the sponsors.
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Information & Authors
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Published In
Journal of Structural Engineering
Volume 143 • Issue 5 • May 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jan 25, 2016
Accepted: Nov 2, 2016
Published ahead of print: Jan 22, 2017
Published online: Jan 23, 2017
Published in print: May 1, 2017
Discussion open until: Jun 23, 2017
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