Cyclic Response of Reinforced Concrete Walls with Different Anchorage Details: Experimental Investigation
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Volume 139, Issue 7
Abstract
Previous tests of structural walls have routinely used continuous reinforcement extending from the foundation to the top of the specimen. This detailing is consistently different from that of multistory walls in the field, which incorporate splices in the wall longitudinal reinforcement above the wall-foundation interface. As a result, the performance of walls incorporating continuous reinforcement in the laboratory may not be representative of walls in the field that use lap splices or mechanical couplers near the wall base. This paper investigates lateral load behavior of three nominally identical structural walls with continuous reinforcement, lap splices, and mechanical couplers in the plastic hinge region, and quantifies the differences in their responses using force-displacement response, lateral deformation components, and energy dissipation estimated using equivalent viscous damping.
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Acknowledgments
This research was completed under grant Nos. CMS-0324504 and CMS-0324559 from the National Science Foundation. The views expressed in this paper reflect those of the writers and not necessarily those of the sponsors. The detailing of the test walls was completed based on a prototype building designed for the project by Suzanne D. Nakaki of Nakaki Structural Design Inc. and her contribution is gratefully acknowledged. The authors also acknowledge the assistance of the staff at the National Science Foundation George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) MAST testing facility. Deformed wire needed for the test walls was provided by Ivy Steel and Wire while the mechanical couplers were provided by Headed Reinforcement Corp.
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Information
Published In
Journal of Structural Engineering
Volume 139 • Issue 7 • July 2013
Pages: 1181 - 1191
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Oct 24, 2011
Accepted: Sep 10, 2012
Published online: Sep 13, 2012
Published in print: Jul 1, 2013
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