Earthquakes and Structures

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An intelligent semi-active isolation system based on ground motion characteristic prediction

  • Lin, Tzu-Kang (Department of Civil Engineering, National Yang Ming Chiao Tung University) ;
  • Lu, Lyan-Ywan (Department of Civil Engineering, National Cheng Kung University) ;
  • Hsiao, Chia-En (Department of Civil Engineering, National Yang Ming Chiao Tung University) ;
  • Lee, Dong-You (Department of Civil Engineering, National Yang Ming Chiao Tung University)
  • Received : 2021.06.26
  • Accepted : 2021.08.11
  • Published : 2022.01.25
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Abstract

This study proposes an intelligent semi-active isolation system combining a variable-stiffness control device and ground motion characteristic prediction. To determine the optimal control parameter in real-time, a genetic algorithm (GA)-fuzzy control law was developed in this study. Data on various types of ground motions were collected, and the ground motion characteristics were quantified to derive a near-fault (NF) characteristic ratio by employing an on-site earthquake early warning system. On the basis of the peak ground acceleration (PGA) and the derived NF ratio, a fuzzy inference system (FIS) was developed. The control parameters were optimized using a GA. To support continuity under near-fault and far-field ground motions, the optimal control parameter was linked with the predicted PGA and NF ratio through the FIS. The GA-fuzzy law was then compared with other control laws to verify its effectiveness. The results revealed that the GA-fuzzy control law could reliably predict different ground motion characteristics for real-time control because of the high sensitivity of its control parameter to the ground motion characteristics. Even under near-fault and far-field ground motions, the GA-fuzzy control law outperformed the FPEEA control law in terms of controlling the isolation layer displacement and the superstructure acceleration.

Keywords

References

  1. Allen, R.M., Gasparini, P., Kamigaichi, O. and Bose, M. (2009), "The status of earthquake early warning around the world: An introductory overview", Seismol. Res. Lett., 80(5), 682-693. https://doi.org/10.1785/gssrl.80.5.682.
  2. Azadegan, A., Porobic, L., Ghazinoory, S., Samouei, P. and Kheirkhah, A.S. (2011), "Fuzzy logic in manufacturing: A review of literature and a specialized application", Int. J. Prod. Econ., 132(2), 258-270. https://doi.org/10.1016/j.ijpe.2011.04.018.
  3. Baker, J.W. (2007), "Quantitative classification of near-fault ground motions using wavelet analysis", B. Seismol. Soc. Am., 97(5), 1486-1501. https://doi.org/10.1785/0120060255.
  4. Barbosa, H.J. (1999) "A coevolutionary genetic algorithm for constrained optimization", The 1999 Congress on Evolutionary Computation-CEC99, Washington DC, USA, 6-9 July, 3, 1605-1611. https://doi.org/10.1109/cec.1999.785466.
  5. Bose, M., Heaton, T. and Hauksson, E. (2012), "Rapid estimation of earthquake source and ground-motion parameters for earthquake early warning using data from a single three-component broadband or strong-motion sensor", B. Seismol. Soc. Am., 102(2), 738-750. https://doi.org/10.1785/0120110152.
  6. Davoodi, M., Jafari, M.K. and Hadiani, N. (2013), "Seismic response of embankment dams under near-fault and far-field ground motion excitation", Eng. Geol., 158, 66-76. https://doi.org/10.1016/j.enggeo.2013.02.008.
  7. Doyle, J.F. (1994), "A genetic algorithm for determining the location of structural impacts", Exp. Mech., 34(1), 37-44. https://doi.org/10.1007/BF02328440.
  8. Hardy, G.H. and Titchmarsh, E.C. (1931), "A note on Parseval's theorem for Fourier transforms", J. Lond. Math. Soc., 6(1), 44-48. https://doi.org/10.1112/jlms/s1-6.1.44.
  9. Heaton, T.H. (1985), "A model for a seismic computerized alert network", Sci. 228(4702), 987-990. https://doi.org/10.1126/science.228.4702.987.
  10. Holmblad, L.P. and Ostergard, J.J. (1981), "Control of a cement kiln by fuzzy logic techniques", IFAC Proceedings Volumes, 14(2), 809-814. https://doi.org/10.1016/S1474-6670(17)63582-1.
  11. Vaez, S.R.H., Sharbatdar, M.K., Amiri, G.G., Naderpour, H. and Kheyroddin, A. (2013), "Dominant pulse simulation of near fault ground motions", Earthq. Eng. Eng. Vib., 12(2), 267-278. https://doi.org/10.1007/s11803-013-0170-4.
  12. Hsiao, N.C., Wu, Y.M., Shin, T.C., Zhao, L. and Teng, T.L. (2009), "Development of earthquake early warning system in Taiwan", Geophys. Res. Lett., 36(5). https://doi.org/10.1029/2008GL036596.
  13. Hsu, T.Y., Huang, C.H. and Wang, S.J. (2021), "Early adjusting damping force for sloped rolling-type seismic isolators based on earthquake early warning information", Earthq. Struct., 20(1), 39-53. https://doi.org/10.12989/eas.2021.20.1.039.
  14. Kirley, M. (1999), "A coevolutionary genetic algorithm for job shop scheduling problems", Third International Conference on Knowledge-Based Intelligent Information Engineering Systems, Adelaide, South Australia, 31 August - 1 September, 84-87.
  15. Lin, C.Y. and Hajela, P. (1992), "Genetic algorithms in optimization problems with discrete and integer design variables", Eng. Optimiz., 19, 309-327. https://doi.org/10.1080/03052159208941234.
  16. Lin, K.Y., Lin, T.K. and Lin, Y. (2020), "Real-time seismic structural response prediction system based on support vector machine", Earthq. Struct., 18(2), 163-170. https://doi.org/10.12989/eas.2020.18.2.163.
  17. Lin, T.K., Lu, L.Y. and Chen, C.J. (2018), "Semi-active leverage-type isolation system considering minimum structural energy", Smart Struct. Syst., 21(3), 373-387. https://doi.org/10.12989/sss.2018.21.3.373.
  18. Liu, Z.J., Lin, T.K., Lu, L.Y. and Hsiao, C.N. (2019), "Development and application of a variable stiffness isolation system considering ground motion characteristic", Struct. Eng., 34(1), 77-104. https://doi.org/10.6849/SE.201903_34(1).0004.
  19. Lee, W.H. and Espinosa-Aranda, J.M. (2003), "Earthquake early warning systems: Current status and perspectives", Early Warning Syst. Nat. Disaster Reduction, Berlin, Springer, 409-423. https://doi.org/10.1007/978-3-642-55903-7_53.
  20. Lu, L.Y., Lin, T.K., Jheng, R.J. and Wu, H.H. (2018), "Theoretical and experimental investigation of a displacement-controlled semi-active friction damper for seismic structure", J. Sound Vib., 412, 184-206. http://doi.org/10.1016/j.jsv.2017.09.029.
  21. Lu, L.Y., Lin, T.K., and Yeh, S.W. (2010), "Experiment and analysis of a leverage-type stiffness-controllable isolation system for seismic engineering", Earthq. Eng. Struct. Dynam., 39(15), 1711-1736. https://doi.org/10.1002/eqe.1005.
  22. Lu, L.Y., Chu, S.Y., Yeh, S.W. and Chung, L.L. (2012), "Seismic test of least-input-energy control with ground velocity feedback for variable-stiffness isolation systems", J. Sound Vib., 331(4), 767-784. https://doi.org/10.1016/j.jsv.2011.10.012.
  23. Moustafa, A. and Takewaki, I. (2010), "Characterization and modeling of near-fault pulse-like strong ground motion via damage-based critical excitation method", Struct. Eng. Mech., 34(6), 755-778. http://doi.org/10.12989/sem.2010.34.6.755.
  24. Nakamura, Y. (1988), "UrEDAS, urgent earthquake detection and alarm system, now and future", 9th World Conference on Earthquake Engineering, Tokyo/Kyoto, Japan, 2-9 August 1099, 7, 673-678.
  25. Satriano, C., Wu, Y.M. and Zollo, A. and Kanamori, H. (2011), "Earthquake early warning: concepts, methods and physical grounds", Soil Dynam. Earthq. Eng., 31(2), 106-118. https://doi.org/10.1016/j.soildyn.2010.07.007.
  26. Sehhati, R., Rodriguez-Marek, A., ElGawady, M. and Cofer, W.F. (2011), "Effects of near-fault ground motions and equivalent pulses on multi-story structures", Eng. Struct., 33(3), 767-779. https://doi.org/10.1016/j.engstruct.2010.11.032.
  27. Somerville, P. (2005), "Engineering characterization of near fault ground motions", 2005 NZSEE Conference, Taupo, New Zealand, 11-13 March, Keynote paper 1.
  28. Soyluk, K. and Karaca, H. (2017), "Near-fault and far-fault ground motion effects on cable-supported bridges", Procedia Eng., 199, 3077-3082. https://doi.org/10.1016/j.proeng.2017.09.421.
  29. Takagi, T. and Sugeno, M. (1983), "Derivation of fuzzy control rules from human operator's control actions", IFAC Proceedings Volumes, 16(13), 55-60. https://doi.org/10.1016/S1474-6670(17)62005-6.
  30. Tamura, Y., Fujii, K., Ohtsuki, T., Wakahara, T. and Kohsaka, R. (1995), "Effectiveness of tuned liquid dampers under wind excitation", Eng. Struct., 17(9), 609-621. https://doi.org/10.1016/0141-0296(95)00031-2.
  31. Weicker, K. and Weicher, N. (1999), "On the improvement of coevolutionary optimizers by learning variable interdependencies", The 1999 Congress on Evolutionary Computation-CEC99, Washington DC, USA, 6-9 July, 3, 1627-1632.
  32. Wu, J.C. (2000), "Modeling of an actively braced full-scale building considering control-structure interaction", Earthq. Eng. Struct. Dynam., 29(9), 1325-1342. https://doi.org/10.1002/1096-9845(200009)29:9<1325::AIDEQE973>3.0.CO;2-E.
  33. Wu, Y.M. and Kanamori, H. (2005a), "Experiment on an onsite early warning method for the Taiwan early warning system", B. Seismol. Soc. Am., 95(1), 347-353. https://doi.org/10.1785/0120040097.
  34. Wu, Y.M. and Kanamori, H. (2005b), "Rapid assessment of damage potential of earthquakes in Taiwan from the beginning of P waves", B. Seismol. Soc. Am., 95(3), 1181-1185. https://doi.org/10.1785/0120040193.
  35. Wu, Y.M. and Kanamori, H. (2008a), "Development of an earthquake early warning system using real-time strong motion signals", Sensors, 8(1), 1-9. https://doi.org/10.3390/s8010001.
  36. Wu, Y.M. and Kanamori, H. (2008b), "Exploring the feasibility of on-site earthquake early warning using close-in records of the 2007 Noto Hanto earthquake", Earth Planets Space, 60(2), 155-160. https://doi.org/10.1186/bf03352778.
  37. Yang, J.N. and Agrawal, A.K. (2002), "Semi-active hybrid control system for nonlinear buildings against near-field earthquakes", Eng. Struct., 24(3), 271-280. https://doi.org/10.1016/S0141-0296(01)00094-3.
  38. Zhang, S. and Wang, G. (2013), "Effects of near-fault and far-fault ground motions on nonlinear dynamic response and seismic damage of concrete gravity dams", Soil Dynam. Earthq. Eng., 53, 217-229. https://doi.org/10.1016/j.soildyn.2013.07.014.