Abstract
Base isolated structures have been found to be at risk in near-fault regions as a result of long period pulses that may exist in near-source ground motions. Various control strategies, including passive, active and semi-active control systems, have been investigated to overcome this problem. This study focuses on the development of a semi-active control algorithm based on several performance levels anticipated from an isolated building during different levels of ground shaking corresponding to various earthquake hazard levels. The proposed performance-based algorithm is based on a modified version of the well-known semi-active skyhook control algorithm. The proposed control algorithm changes the control gain depending on the level of shaking imposed on the structure. The proposed control system has been evaluated using a series of analyses performed on a base isolated benchmark building subjected to seven pairs of scaled ground motion records. Simulation results show that the newly proposed algorithm is effective in improving the structural and nonstructural performance of the building for selected earthquakes.
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References
Ahmadian M, Brian R and Song X (2000), No-Jerk Semi-Active Skyhook Control Method and Apparatus, United States Patent, USA.
Ariga T, Kanno Y and Takewaki I (2006), “Resonant Behavior of Base-isolated High-rise Buildings Under Long-period Ground Motions,” The Structural Design of Tall and Special Building, 15: 325–338.
Chu SY, Soong TT and Reinhorn AM (2005), Active, Hybrid, and Semi-active Structural Control, A Design and Implementation Handbook, John Wiley & Sons: New York, USA.
Crosby MJ, Karnopp D, et al. (1973), “Vibration Control Using Semi-active Force Generators,” Transactions of the ASME, Paper 73-DET-122.
Erkus B and Johnson EA (2003), “Benchmark Base Isolated Building with Controlled Bilinear Isolation,” Proceedings of the 16th ASCE Engineering Mechanics Conference.
Gavin HP and Aldemir U (2005), “Optimal Control of Earthquake Response Using Semi-active Isolation,” Journal of Engineering Mechanics, ASCE, 769–776.
Hall JH, Heaton TH, Halling MW and Wald DJ (1995), “Near-source Ground Motion and Its Effect on Flexible Buildings,” Earthquake Spectra, 11: 569–605.
Heaton TH, Hall JH, Wald DJ and Halling MW (1995), “Response of High-rise and Base-isolated Buildings in a Hypothetical M W 7.0 Blind Thrust Earthquake,” Science, 267: 206–211.
Inaudi JA and Kelly JM (1990), “Active Isolation,” U.S. National Workshop on Structural Control Research, Los Angeles, 125–130.
Jangid RS and Kelly JM (2001), “Base Isolation for Near-Fault Motions,” Earthquake Engineering and Structural Dynamics, 30: 691–707.
Johnson EA, Ramallo JC, Spencer BF and Sain MK (1998), “Intelligent Base Isolation Systems,” Proceedings of the 2nd World Conference on Structural Control, Kyoto, Japan.
Karnopp D (1995), “Active and Semi-active Vibration Isolation,” Journal of Vibrations and Acoustics, 117(3B): 177–185.
Kelly JM (1999), “The Role of Damping in Seismic Isolation,” Earthquake Engineering and Structural Dynamics, 28: 3–20.
Makris N and Chang SP (1998), “Effect of Damping Mechanisms on the Response of Seismically Isolated Structures,” Report No. PEER-98/06, University of California, Berkeley, CA.
MATLAB (2000), The Math Works, Inc.
Meirovitch L (1986), Elements of Vibration Analysis, McGraw-Hill, Inc., New York.
Miller LR and Nobles CM (1990), Methods for Eliminating Jerk and Noise in Semi-active Suspensions, SAE Trans., SAE paper.
Naeim F and Kelly JM (1999), Design of Seismic Isolated Structures, from Theory to Practice, John Wiley & Sons: New York, USA.
Nagarajaiah S, Riley MA and Reinhorn A (1993), “Control of Sliding-isolated Bridge with Absolute Acceleration Feedback,” Journal of. Eng. Mech., 119(11): 2317–2332.
Narasimhan S, Nagarajaiah S, Johnson EA and Gavin HP (2006), “Smart Base-isolated Benchmark Building Part I: Problem Definition,” Journal of Structural Control and Health Monitoring, 13: 573–588.
PEER (Pacific Earthquake Engineering Research Center) Strong Motion Database. University of California, Berkeley; http://peer.berkeley.edu
Skinner RI, Robinson WH, and McVerry GH, An Introduction to Seismic Isolation, Wiley, Chichester, England, 1993.
Spencer BF, Jr., Dyke SJ, Sain MK and Carlson JD (1997), “Phenomenological Model of a Magnetorheological Damper,” Journal of Engineering Mechanics, 123(3): 230–238.
Yang JN and Agrawal AK (2002), “Semi-active Hybrid Control Systems for Nonlinear Buildings Against Near-field Earthquakes,” Engineering Structures, 24: 271–280.
Yang JN et al. (1996), “Control of Sliding-isolated Buildings Using Sliding-mode Control,” Journal of Struct. Eng., 122(2): 179–186.
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Mehrparvar, B., Khoshnoudian, T. Performance-based semi-active control algorithm for protecting base isolated buildings from near-fault earthquakes. Earthq. Eng. Eng. Vib. 11, 43–55 (2012). https://doi.org/10.1007/s11803-012-0097-1
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DOI: https://doi.org/10.1007/s11803-012-0097-1