Shake-Table Test of a Full-Scale 4-Story Precast Concrete Building. I: Overview and Experimental Results
Publication: Journal of Structural Engineering
Volume 143, Issue 6
Abstract
The level of structural damage and the associated economic impact caused by recent earthquakes worldwide have spurred an increased interest in high-performance seismic-resisting systems that can sustain severe earthquakes with minimal damage. A particularly efficient high-performance wall system consists of precast concrete panels vertically posttensioned to the foundation with unbonded posttensioning steel. The system relies on the vertical unbonded posttensioning steel for flexural strength and recentering, while mild bonded steel bars provide energy dissipation and additional flexural strength. Experimental results are presented from a dynamic test on a full-scale 4-story precast concrete building that utilized unbonded posttensioned (UPT) walls in one direction and bonded posttensioned concrete frames in the orthogonal direction. The excellent performance of the test building in the wall direction of response, exhibiting minimal damage and no residual deformations, confirms that UPT walls are a viable alternative to conventional RC structural walls.
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Acknowledgments
The authors acknowledge the generous support of the Ministry of Education, Culture, Sports, Science and Technology (MEXT) as well as the National Research Institute for Earth Science and Disaster Prevention of Japan in carrying out the test presented in this paper. Participation of the American coauthors in the project was supported in part by Pacific Earthquake Engineering Center as well as the Network for Earthquake Engineering Simulation of the National Science Foundation under Award CMMI-1000268, whereas funding for Network for Earthquake Engineering Simulation at the University of California, Los Angeles instrumentation was provided under Award CMMI-1110860. The authors would like to acknowledge Dr. S. Sritharan of Iowa State University and Professor T. Kabeyasawa at the Earthquake Research Institute at the University of Tokyo for providing additional instrumentation for the test buildings, as well as the pretest analytical studies on the PT building conducted by Dr. Richard Sause and his former Ph.D. Student, Wesley Keller, at Lehigh University. Opinions, findings, conclusions, and recommendations in this paper are those of the authors and do not necessarily represent those of the sponsors or other individuals mentioned here.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 143 • Issue 6 • June 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Oct 27, 2015
Accepted: Nov 18, 2016
Published online: Feb 28, 2017
Published in print: Jun 1, 2017
Discussion open until: Jul 28, 2017
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