Earthquakes and Structures

  • 제13권1호
  • /
  • Pages.79-87
  • /
  • 2017
  • /
  • 2092-7614(pISSN)
  • /
  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical and random simulation procedure for preliminary local site characterization and site factor assessing

  • Beneldjouzi, Mohamed (Water, environment, Geomaterials and structures laboratory (LEEGO), Faculty of Civil Engineering, University of Science and Technology Houari Boumediene) ;
  • Laouami, Nasser (Earthquake Engineering Applied Research Center (CGS)) ;
  • Slimani, Abdennasser (Earthquake Engineering Applied Research Center (CGS))
  • 투고 : 2016.08.23
  • 심사 : 2017.06.28
  • 발행 : 2017.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Seismic analysis of local site conditions is fundamental for a reliable site seismic hazard assessment. It plays a major role in mitigation of seismic damage potential through the prediction of surface ground motion in terms of amplitude, frequency content and duration. Such analysis requires the determination of the transfer function, which is a simple tool for characterizing a soil profile by estimating its vibration frequencies and its amplification potential. In this study, numerical simulations are carried out and are then combined with a statistical study to allow the characterization of design sites classified by the Algerian Building Seismic Code (RPA99, ver 2003), by average transfer functions. The mean transfer functions are thereafter used to compute RPA99 average site factors. In this regard, coming up seismic fields are simulated based on Power Spectral Density Functions (PSDF) defined at the rock basement. Results are also used to compute average site factor where, actual and synthetic time histories are introduced. In absence of measurement data, it is found that the proposed approach can be used for a better soil characterization.

키워드

참고문헌

  1. Amin, M. and Ang, A.H.S. (1968), "A non-stationary stochastic model of earthquake motion", J. Eng. Mech. Div., ASCE, 94(EM2), 559-583.
  2. Bard, P.Y. (1999), "Microtremor measurements: a tool for site effect estimation? In: Irikura K, Kudo K, Okada H, Sasatani T (eds) The effects of surface geology on seismic motion", Balkema, Rotterdam, 1251-1279.
  3. Der Kiureghian, A. and Neuenhofer, A. (1992), "Response spectrum method for multi-support seismic excitations'', Earthq. Eng. Struct. D., 21(8), 713-740. https://doi.org/10.1002/eqe.4290210805
  4. Irikura, K., Kudo, K., Okada, H., Sasatani, T. (eds) The effects of surface geology on seismic motion,ʼʼ Balkema, Rotterdam, pp 1251-1279.
  5. Borcherdt, R.D. and Gibbs, J.F. (1970), "Effect of local geological conditions in the San Francisco Bay region on ground motions and the intensities of the 1906 earthquake", Bull. Seism. Soc. Am., 66(2), 467-500.
  6. Clough, R.W. and Penzien, J. (1975), Dynamics of structures, McGraw Hill, New York
  7. Gautam, D. Forte, G. and Rodrigues, H. (2016), "Site effects and associated structural damage analysis in Kathmandu Valley, Nepal", Earthq. Struct., 10(5), 1013-1032 https://doi.org/10.12989/eas.2016.10.5.1013
  8. Kanai, K. (1957), "Semi-empirical formula for the seismic characteristics of the ground", Bull. Earthq. Res. Inst., University of Tokyo, Japan, 35, 309-325
  9. Laouami, N., Slimani, A., Bouhadad, Y., Chatelain, J.L. and Nour, A. (2006), "Evidence for fault-related directionality and localized site effects from strong motion recordings of the 2003 Boumerdes (Algeria) earthquake: Consequences on damage distribution and the Algerian seismic code", Soil Dyn. Earthq Eng., 26(11), 991-1003. https://doi.org/10.1016/j.soildyn.2006.03.006
  10. Lermo, J. and Chavez-Garcia, F.J. (1994), "Site effect evaluation at Mexico city: Dominant period and relative amplification from strong motion and microtremor records", Soil Dyn. Earthq. Eng., 13(6), 413-423. https://doi.org/10.1016/0267-7261(94)90012-4
  11. Nakamura, Y. (1989), "A method for dynamic characteristic estimates of subsurface using microtremor on the ground surface", Q. Rep Railway Tech. Res. Inst., 30(1), 25-33.
  12. Nogoshi, M. and Igarashi, T. (1971), "On the amplitude characteristics of microtremor (part 2)", J. Seismol. Soc. Japan, 24(1), 26-40. (in Japanese)
  13. RPA99 (2003 Version) (2003), "Regles Parasismiques Algeriennes", D.T.R.-B.C. 2.48. Earthquake Engineering Applied Research Center (CGS), Rue Kaddour Rahim, BP 252, Hussein Dey, Algiers, Algeria. Imprime par l'Office Nationale des Publications Universitaires (OPU). ISBN 9961-923-13-8.
  14. Schnabel, P.B., Lysmer, J. and Seed, H.B. (2012), "Computer program SHAKE: A computer program for earthquake response analysis of horizontally layered sites", University of California, Berkeley, California.
  15. Shinozuka, M., Deodatis, G. and Harada, T. (1987), "Digital simulation of seismic ground motion", Technical report NCEER-87-0017.
  16. Tajimi, H. (1960), "A statistical method of determining the maximum response of a building during an earthquake", Proceeding of the Second World Conference on Earthquake Engineering, Tokyo and Kyoto.
  17. Wen, R., Ren, Y., Zhou, Z. and Shi, D. (2010), "Preliminary site classification of free-field strong motion stations based on Wenchuan earthquake records", Earthq. Sci., 23(1), 101-110. https://doi.org/10.1007/s11589-009-0048-8
  18. Zhao, J.X., Irikura, K., Zhang, J., Fukushima, Y., Somerville, P.G., Asano, A., Ohno, Y., Oouchi, T., Takahashi, T. and Ogawa H. (2006), "An empirical site-classification method for strong strong-motion stations in Japan using H/V response spectral ratio", Bull. Seismol. Soc. Am., 96(3), 914-925. https://doi.org/10.1785/0120050124