| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 GNS Science
1 Fairway
Drive
Avalon
P.O. Box 30-368
Lower Hutt, 6315 New
Zealand
(J.X.Z., J.Z.)
2 Aichi Institute of
Technology
Toyota City, Japan
(K.I.)
3 Ohsaki Research Institute
27F,
Fukoku-seimsi BLDG, 2-2-2
Uchisaiwai-cho
Chiyoda-ku
Tokyo
100-0011
Japan
(Y.F.)
4 URS Corporation
566 El Dorado
Street
Pasadena, California 91101-2560
(P.G.S.)
5 Shikoka Electric Power Co.
Inc.
Takamatsu, Japan
(A.A., Y.O., T.O., T.T., H.O.)
Having a reliable site classification scheme is vital for the development of robust strong-motion attenuation models. We discuss a promising empirical site- classification scheme based on strong-motion data from Japan. We assigned site classes, according to the site classification defined in engineering design codes in Japan, for those K-net sites where boreholes reached either to rock or to stiff soils with shear-wave velocity of 600 m/sec or larger, using four site classes defined by dominant site period. The average response spectral ratios of the horizontal and vertical components (H/V) of earthquake records for all site classes were found not to be strongly affected by Japan Meteorological Agency (JMA) magnitude, hypocentral distance, and focal depth for all site classes. We used H/V ratios for records from the classified K-net sites to establish a site classification index using the mean spectral ratios over a wide range of spectral period. Using the index, we were able to classify both K-net stations with soil layers thicker than 20 m and other strong-motion stations in Japan. The peak period of the H/V spectral ratio can also be used to identify soft soil sites. The site amplification factors calculated from the site class terms based on the new site classification are consistent with the period bands defined for these site classes.
This article has been cited by other articles:
|
|
 |
|
  H. Cadet, P.-Y. Bard, and A. Rodriguez-Marek Defining a Standard Rock Site: Propositions Based on the KiK-net Database Bulletin of the Seismological Society of America, February 1, 2010; 100(1): 172 - 195. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. X. Zhao, D. A. Rhoades, G. H. McVerry, and P. G. Somerville Inhibition of Very Strong Ground Motion in Response Spectral Attenuation Models and Effects of Site Class and Tectonic Category Bulletin of the Seismological Society of America, June 1, 2009; 99(3): 1487 - 1501. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. R. Gallipoli and M. Mucciarelli Comparison of Site Classification from VS30, VS10, and HVSR in Italy Bulletin of the Seismological Society of America, February 1, 2009; 99(1): 340 - 351. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
