Application of Hybrid Simulation for Collapse Assessment of Post-Earthquake CFRP-Repaired RC Columns
Publication: Journal of Structural Engineering
Volume 143, Issue 1
Abstract
Hybrid simulation combines the flexibility and cost-effectiveness of computer simulations with the realism of experimental testing to provide a powerful platform for large-scale experimental investigation of the seismic response of structures through collapse. This paper presents applications of hybrid simulation for (1) tracing the seismic response of a limited-ductility reinforced-concrete (RC) column through collapse and (2) evaluating the capability of carbon fiber reinforced polymer (CFRP) repair on rehabilitating the earthquake-damaged RC column to its initial collapse resistance capacity. A state-of-the-art hybrid testing facility, referred to as the multiaxis substructure testing (MAST) system, was used to simulate complex time-varying six-degrees-of-freedom (6-DOF) boundary effects on the physical specimens using mixed load/deformation modes. Based on the experimental results, a comparative collapse risk assessment of the initial and repaired column was conducted, which illustrates the effectiveness of using CFRP repair to restore and improve the collapse resistance of earthquake-damaged RC columns.
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Acknowledgments
The authors gratefully acknowledge the contribution of the Australian Research Council (Grants LE110100052, DP140103350, and DP1096753) and the Bushfire and Natural Hazards CRC grant. The authors would also like to acknowledge Ph.D. student Scott Menegon for designing the structure.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 143 • Issue 1 • January 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Dec 14, 2015
Accepted: Jun 20, 2016
Published online: Jul 27, 2016
Discussion open until: Dec 27, 2016
Published in print: Jan 1, 2017
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