Real-Time Hybrid Simulation of a Nonductile Reinforced Concrete Frame
Publication: Journal of Structural Engineering
Volume 140, Issue 2
Abstract
This paper reports about a real-time hybrid simulation (RTHS) of a nonductile reinforced concrete frame that had previously been tested on a shake table (ST) at the University of California, Berkeley. This three-story, three-bay frame is numerically modeled with flexibility-based/layered nonlinear elements and over 400 degrees of freedom (DOFs), while one of the nonductile base columns is physically tested in the laboratory. RTHS is enabled through a new code developed by the authors, and these simulation results are compared with those obtained from the ST test. The comparison between ST tests and RTHS is encouraging, though still not acceptable (within 10%). Details of the simulation are provided, and preliminary results indicate that RTHS may be indeed provide the natural path for a gradual substitution of physical (and expensive) testing by numerical simulation. This contribution offers a small step in that direction.
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Acknowledgments
The authors would like to thank the state of Colorado for funding this study and the National Science Foundation for its support for the acquisition of equipment formerly operated by CU-NEES. The second author would like to acknowledge the support of the National Science Foundation and the Pacific Earthquake Engineering Research Center (PEER) for their support in performing the ST tests at the University of California, Berkeley. The invaluable assistance of Kent Polkinghorne and Michael Eck in the execution of these tests is also gratefully acknowledged.
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Information
Published In
Journal of Structural Engineering
Volume 140 • Issue 2 • February 2014
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Sep 25, 2011
Accepted: Jan 30, 2013
Published online: Feb 1, 2013
Published in print: Feb 1, 2014
Discussion open until: Mar 21, 2014
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