DOI QR코드

DOI QR Code

Statistical reference values for control performance assessment of seismic shake table testing

  • Chen, Pei-Ching (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology) ;
  • Kek, Meng-Kwee (Department of Civil Engineering, National Taiwan University) ;
  • Hu, Yu-Wei (Department of Civil Engineering, National Taiwan University) ;
  • Lai, Chin-Ta (National Center for Research on Earthquake Engineering, National Applied Research Laboratories)
  • 투고 : 2018.05.10
  • 심사 : 2018.10.17
  • 발행 : 2018.12.25

초록

Shake table testing has been regarded as one of the most effective experimental approaches to evaluate seismic response of structural systems subjected to earthquakes. However, reproducing a prescribed acceleration time history precisely over the frequency of interest is challenging because shake table test systems are eventually nonlinear by nature. In addition, interaction between the table and specimen could affect the control accuracy of shake table testing significantly. Various novel control algorithms have been proposed to improve the control accuracy of shake table testing; however, reference values for control performance assessment remain rare. In this study, reference values for control performance assessment of shake table testing are specified based on the statistical analyses of 1,209 experimental data provided by the Seismic Simulator Laboratory of National Center for Research on Earthquake Engineering in Taiwan. Three individual reference values are considered for the assessment including the root-mean-square error of the achieved acceleration time history; the percentage of the spectral acceleration that exceeds the determined tolerance range over the frequency of interest; and the error-ratio of the achieved peak ground acceleration. Quartiles of the real experimental data in terms of the three objective variables are obtained, providing users with solid and simple references to evaluate the control performance of shake table testing. Finally, a set of experimental data of a newly developed control framework implementation for uni-axial shake tables are used as an application example to demonstrate the significant improvement of control accuracy according to the reference values provided in this study.

키워드

과제정보

연구 과제 주관 기관 : National Center for Research of Earthquake Engineering (NCREE)

참고문헌

  1. AC156 (2007), Acceptance Criteria for Seismic Qualification by Shake-table Testing of Nonstructural Components and Systems, ICC Evaluation Service inc.
  2. Altunisik, A.C. (2017), "Shaking table test of wooden building models for structural identification", Earthq. Struct., 12(1), 67-77. https://doi.org/10.12989/EAS.2017.12.1.067
  3. Benesty, J., Chen, J. and Huang, Y. (2005), "A generalized MVDR spectrum", IEEE Signal Pr. Lett., 12(12), 827-830. https://doi.org/10.1109/LSP.2005.859517
  4. Chen, P.C., Lai, C.T. and Tsai, K.C. (2017), "A control framework for uniaxial shaking tables considering tracking performance and system robustness", Struct. Control Hlth. Monit., 24(11), e2015. https://doi.org/10.1002/stc.2015
  5. Dyke, S.J., Spencer, Jr. B.F., Quast, P. and Sain, M.K. (1995), "Role of control-structure interaction in protective system design", J. Eng. Mech., ASCE, 121(2), 322-338. https://doi.org/10.1061/(ASCE)0733-9399(1995)121:2(322)
  6. Gizatullin, A.O. and Edge, K.A. (2007), "Adaptive control for a multi-axis hydraulic test rig", Inst. Mech. Eng., Part I: J. Syst. Control Eng., 221(1), 183-198.
  7. GR-63-CORE (2012) Network Equipment Building System (NEBS) Requirements, Physical Protection Issue 4.
  8. IEEE Std 693TM-2005 (2006), IEEE Recommended Practice for Seismic Design of Substations, IEEE Power Engineering Society, New York, USA.
  9. Lee, H.S., Lee, K.B., Hwang, K.R. and Cho, C.S. (2013), "Shake table responses of an RC low-rise building model strengthened with buckling restrained braces at ground story", Earthq. Struct., 5(6), 703-731. https://doi.org/10.12989/EAS.2013.5.6.703
  10. Lian, M. and Su, M. (2017), "Shake table test of Y-shaped eccentrically braced frames fabricated with high-strength steel", Earthq. Struct., 12(5), 501-503. https://doi.org/10.12989/EAS.2017.12.5.501
  11. MTS Systems Corporation. (2017), "High performance seismic simulation and BATS system", National Center for Research on Earthquake Engineering, Tainan, Taiwan.
  12. Nakata, N. (2010), "Acceleration trajectory tracking control for earthquake simulators", Eng. Struct., 32(8), 2229-2236. https://doi.org/10.1016/j.engstruct.2010.03.025
  13. Nowak, R.F., Kusner, D.A., Larson, R.L. and Thoen, B.K. (2000), "Utilizing modern digital signal processing for improvement of large scale shaking table performance", Proceedings of the 12th World Conference on Earthquake Engineering, Auckland, New Zealand, January.
  14. Phillips, B.M., Wierschem, N.E. and Spencer, Jr. B.F. (2014), "Model-based multi-metric control of uniaxial shake tables", Earthq. Eng. Struct. Dyn., 43(5), 681-699. https://doi.org/10.1002/eqe.2366
  15. Shen, G., Zheng, S.T., Ye, Z.M., Huang, Q.T., Cong, D.C. and Han, J.W. (2011), "Adaptive inverse control of time waveform replication for electrohydraulic shaking table", J. Vib. Control, 7(11),1611-1633.
  16. Spencer, Jr. B.F and Yang, G. (1998), "Earthquake simulator control by transfer function iteration", Proceedings of the 12th Engineering Mechanics Conference, LaJolla, CA, May.
  17. Stoten, D.P. and G'omez, E.G. (2001), "Adaptive control of shaking tables using the minimal control synthesis algorithm", Philos. Tran. R. Soc. London. Ser. A, 1697-1723.
  18. Tagawa, Y. and Kajiwara, K. (2007), "Controller development for the E-Defense shaking table", Inst. Mech. Eng., Part I: J. Syst. Control Eng., 221(2), 171-181.
  19. Thoen, B.K. (2016), Seismic Test Fidelity using SDC vs. Iteration, MTS Systems Corporation, Rev. 25-Jul-16.
  20. Twitchell, B.S. and Symans, M.D. (2003), "Analytical modeling, system identification, and tracking performance of uniaxial seismic simulators", J. Eng. Mech., ASCE, 129(12), 1485-1488. https://doi.org/10.1061/(ASCE)0733-9399(2003)129:12(1485)
  21. Yang, T.Y., Li, K., Lin, J.Y., Li, T. and Tung, D.P. (2015), "Development of high-performance shake tables using the hierarchical control strategy and nonlinear control techniques", Earthq. Eng. Struct. Dyn., 44(11), 1717-1728. https://doi.org/10.1002/eqe.2551
  22. Yao, J.J., Fu, W., Hu, S.H. and Han, J.W. (2011), "Amplitude phase control for electro-hydraulic servo system based on normalized least-mean-square adaptive filtering algorithm", J. Central South Univ. Technol., 18(3), 755-759. https://doi.org/10.1007/s11771-011-0759-6