The study of the relationship of local ground conditions with the
parameters of seismic vibrations carried out
by the section of engineering seismology called seismic microzonation.
Inthis branch of applied science
radical changes have taken place at the end of the last century. The Commission
on Seismic Safety of the National Institute of Building Sciences of the United
States has developed new recommendations, which are significantly different
from all that used in the world practice of anti-seismic construction. The main
provisions of this NEHRP (National Earthquake Hazards Reduction Program)
classification adopted in many national building
codes, including Eurocode 8. At the same time, a number of papers appeared in
subsequent years criticizing the use of the NEHRP soil classification.
This article examines in detail and, most importantly, comprehensively the shortcomings of the NEHRP classification.
References
[1]
Building Seismic Safety Council (1997) National Earthquake Hazard Reduction Program (NEHRP) Recommended Provisions for Seismic Regulations for New Buildings and Other Structures. Part 1: Provisions (FEMA 302). Building Seismic Safety Council, Washington DC.
[2]
European Committee for Standardization (2003) Eurocode 8: Design of Structures for Earthquake Resistance—Part 1: General Rules, Seismic Actions, and Rules for Buildings. Brussels, 229 p.
[3]
Dobry, R., Borcherdt, R., Crouse, C.B., Idriss, L.M., Joyner, W.B., Martin, G.R., Power, M.S., Rinne, E.E. and Seed, R.B. (2000) New Site Coefficients and Site Classification System Used in Recent Building Seismic Code Provisions. Earthquake Engineering, 16, 41-67. https://doi.org/10.1193/1.1586082
[4]
Klimis, N.S., Margaris, B.N. and Koliopoulos, P.K. (1999) Site-Dependent Amplification Functions and Response Spectra in Greece. Journal of Earthquake Engineering, 3, 237-270. https://doi.org/10.1080/13632469909350346
[5]
Barani, A., De Ferrari, R., Ferretti, G. and Eva, C. (2008) Assessing the Effectiveness of Soil Parameters for Ground Response Characterization and Soil Classification. Earthquake Spectra, 24, 565-597. https://doi.org/10.1193/1.2946440
[6]
Gallipoli, M. and Mucciarelli, M. (2009) Comparison of Site Classification from Vs30, Vs<i0 and HVSR in Italy. Bulletin of the Seismological Society of America, 99, 340-351 https://doi.org/10.1785/0120080083
[7]
Zaslavsky, Y., Shapira, A., Goldstein, M., et al. (2012) Questioning the Applicability of Soil Amplification Factors as Defined by NEHRP (USA) in the Israel Building Standards. Natural Science, 4, 631-639. https://doi.org/10.4236/ns.2012.428083
[8]
Anbazhagan, P., Sheikh, M.N. and Parihar, A. (2013) Influence of Rock Depth on Seismic Site Classification for Shallow Bedrock Regions. Natural Hazards Review, 14, 108-121. https://doi.org/10.1061/(ASCE)NH.1527-6996.0000088
[9]
SP 283.1325800.2016 (2016) High Critical Building Objects. Rules of Seismic Microzonation. (In Russian)
[10]
Aleshin, А.S. (2017) The Continuum Theory of Seismic Microzonation. 300 p. (In Russian)
[11]
Bardet, J.P., Tobita, T. and Nera, F. (2001) Computer Program for Nonlinear Earthquake Site Response Analyses of Layered Soil Deposits. University of Southern California, 44.
[12]
Kharkevich, A.A. (1957) Theoretical Bases Radio. 348 p. (In Russian)
[13]
SP 14.13330.2014 (2014) Construction in Seismic Areas. (In Russian)
