DOI QR코드

DOI QR Code

Use of near-fault pulse-energy for estimating critical structural responses

  • Chang, Zhiwang (School of Civil Engineering, Southwest Jiaotong University) ;
  • Liu, Zhanhui (School of Civil Engineering, Southwest Jiaotong University) ;
  • Chen, Zhenhua (School of Civil Engineering, Southwest Jiaotong University) ;
  • Zhai, Changhai (School of Civil Engineering, Harbin Institute of Technology)
  • Received : 2018.12.30
  • Accepted : 2019.03.03
  • Published : 2019.04.25

Abstract

Near-fault ground motions can impose particularly high seismic demands on structures due to the pulses that are typically observed in the velocity time-histories. In this study it is empirically found that the critical response can be estimated from the directions corresponding to the maximum (max) or minimum (min) pulse-energy. Determination of the pulse-energy requires removing of the high-frequency content. For achieving this, the wavelet analysis and the least-square-fitting (LSF) algorithm are adopted. Results obtained by the two strategies are compared and differences between them are analyzed. Finally, the relationship between the critical response and the response derived from directions having the max or min pulse-energy confirms that using the pulse-energy for deriving the critical response of the building structures is reasonable.

Acknowledgement

Supported by : National Natural Science Foundation of China, Central Universities, Southwest Jiao Tong University

References

  1. American Society of Civil Engineers (ASCE) (2010), Minimum Design Loads for Buildings and Other Structures, ASCE/SEI 7-10, Reston, VA.
  2. Ancheta, T.D., Darragh, R.B., Stewart, J.P., Seyhan, E., Silva, W.J., Chiou, B,S.J., Wooddell, K.E., Graves, R.W., Kottke, A.R., Boore, D.M., Kishida, T. and Donahue, J.L. (2013), "NGA-West2 database", Earthq. Spectra, 30(3), 989-1005. https://doi.org/10.1193/070913EQS197M
  3. Baker, J.W. (2007), "Quantitative classification of near-fault ground motions using wavelet analysis", Bull. Seismol. Soc. Am., 97(5), 1486-1501. https://doi.org/10.1785/0120060255
  4. Bray, J.D. and Rodriguez-Marek, A. (2004), "Characterization of forward directivity ground motions in the near-fault region", Soil Dyn. Earthq. Eng., 24(11), 815-828. https://doi.org/10.1016/j.soildyn.2004.05.001
  5. BSSC (2015), NEHRP Recommended Seismic Provisions for New Buildings and Other Structures, FEMA P-1050, Building Seismic Safety Council, Washington, D.C.
  6. Chang, Z., De Luca, F. and Goda, K. (2019a), "Automated classification of near-fault acceleration pulses using wavelet packets", Comput. Aid. Civil Infrastr. Eng., DOI: 10.1111/mice.12437.
  7. Chang, Z., De Luca, F. and Goda, K. (2019b), "Near-fault acceleration-pulses and non-acceleration-pulses: Effects on the inelastic displacement ratio", Earthq. Eng. Struct. Dyn.. (under Review)
  8. Chang, Z., Sun, X., Zhai, C., Zhao, J. X. and Xie, L. (2016), "An improved energy-based approach for selecting pulse-like ground motions", Earthq. Eng. Struct. Dyn., 45, 2405-2411. https://doi.org/10.1002/eqe.2758
  9. Chiou, B., Darragh, R., Gregor, N. and Silva, W. (2008), "NGA project strong-motion database", Earthq. Spectra, 24(1), 23-44. https://doi.org/10.1193/1.2894831
  10. Dickinson, B. and Gavin, H. (2011), "Parametric statistical generalization of uniform-hazard earthquake ground motions", J. Struct. Eng., 137(3), 410-422. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000330
  11. Feng, R., Chen, Y. and Cui, G. (2018), "Dynamic response of post-tensioned rocking wall-moment frames under near-fault ground excitation", Earthq. Struct., 15(3), 243-251. https://doi.org/10.12989/EAS.2018.15.3.243
  12. Hayden, C., Bray, J. and Abrahamson, N. (2014), "Selection of near-fault pulse motions", J. Geotech. Geoenviron. Eng., 140(7), 04014030. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001129
  13. He, W.L. and Agrawal, A.K. (2008), "Analytical model of ground motion pulses for the design and assessment of seismic protective systems", J. Struct. Eng., 134(7), 1177-1188. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:7(1177)
  14. Iervolino, I. and Cornell, C.A. (2008), "Probability of occurrence of velocity pulses in near-source ground motions", Bull. Seismol. Soc. Am., 98(5), 2262-2277. https://doi.org/10.1785/0120080033
  15. Kalkan, E. and Kunnath, S. (2006), "Effects of fling step and forward directivity on seismic response of buildings", Earthq. Spectra, 22(2), 367-390. https://doi.org/10.1193/1.2192560
  16. Kalkan, E. and Kwong, N. (2013), "Pros and cons of rotating ground motion records to fault-mormal/parallel directions for response history analysis of buildings", J. Struct. Eng., 140(3), 04013062.
  17. Kardoutsou, V., Taflampas, I. and Psycharis, I.N. (2017), "A new pulse indicator for the classification of ground motions", Bull. Seismol. Soc. Am., 107(3), 1356-1364. https://doi.org/10.1785/0120160301
  18. Kunnath, S.K., Reinhorn, A.M. and Lobo, R.F. (1992), "IDARC Version 3.0: A program for the inelastic damage analysis of reinforced concrete structures", Report No. NCEER-92-0022, National Center for Earthquake Engineering Research, University at Buffalo, the State University of New York.
  19. Losanno, D., Hadad, H.A. and Serino, G. (2017), "Seismic behavior of isolated bridges with additional damping under far-field and near fault ground motion", Earthq. Struct., 13(2), 119-130. https://doi.org/10.12989/EAS.2017.13.2.119
  20. Mavroeidis, G.P. and Papageorgiou, A.S. (2003), "A mathematical representation of near-fault ground motions", Bull. Seismol. Soc. Am., 93(3), 1099-1131. https://doi.org/10.1785/0120020100
  21. Mimoglou, P., Psycharis, I.N. and Taflampas, I.M. (2014), "Explicit determination of the pulse inherent in pulse-like ground motions", Earthq. Eng. Struct. Dyn., 43, 2261-2281. https://doi.org/10.1002/eqe.2446
  22. NIST (2011), Selecting and Scaling Earthquake Ground Motions for Performing Response-History Analyses, NIST GCR 11-917-15, Prepared by the NEHRP Consultants Joint Venture for the National Institute of Standards and Technology, Gaithersburg, Maryland.
  23. Park, Y. and Ang, A. (1985), "Mechanistic seismic damage model for reinforced concrete", J. Struct. Eng., 111(4), 740-757. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:4(740)
  24. Reyes, J. and Kalkan, E. (2015a), "Significance of rotating ground motions on behavior of symmetric- and asymmetric-plan structures-Part I. Single-story structures", Earthq. Spectra, 31(3), 1591-1612. https://doi.org/10.1193/072012EQS241M
  25. Reyes, J. and Kalkan, E. (2015b), "Significance of rotating ground motions on behavior of symmetric- and asymmetric-plan structures-Part II. Multi-story structures", Earthq. Spectra, 31(3), 1613-1628. https://doi.org/10.1193/072012EQS242M
  26. Shahi, S. and Baker, J. (2011), "An empirically calibrated framework for including the effects of near-fault directivity in probabilistic seismic hazard analysis", Bull. Seismol. Soc. Am., 101(2), 742-755. https://doi.org/10.1785/0120100090
  27. Shahi, S. and Baker, J. (2014), "An efficient algorithm to identify strong-velocity pulses in multicomponent ground motions", Bull. Seismol. Soc. Am., 104(5), 2456-2466. https://doi.org/10.1785/0120130191
  28. Spudich, P. and Chiou, B.S.J. (2008), "Directivity in NGA earthquake ground motions: Analysis using isochrone theory", Earthq. Spectra, 24(1), 279-298. https://doi.org/10.1193/1.2928225
  29. Xu, Z. and Agrawal, A. (2010), "Decomposition and effects of pulse components in near-field ground motions", J. Struct. Eng., 136(6), 690-699. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000122
  30. Zhai, C., Chang, Z., Li, S. and Xie, L. (2013b), "Selection of the most unfavorable real ground motions for low-and mid-rise RC frame structures", J. Earthq. Eng., 17, 1233-1251. https://doi.org/10.1080/13632469.2013.837415
  31. Zhai, C., Chang, Z., Li, S., Chen, Z. and Xie, L. (2013a), "Quantitative identification of near-fault pulse-like ground motions based on energy", Bull. Seismol. Soc. Am., 103(5), 2591-2603. https://doi.org/10.1785/0120120320