Host: National Committee for IUTAM
Co-host: The Japan Society of Applied Physics, The Society of Chemical Engineers, Japan, Society of Automotive Engineers of Japan, The Japanese Geotechnical Society, Japan Society of Civil Engineers, The Japan Society for Industrial and Applied Mathematics, Japan Association for Wind Engineering, The Japan Society of Mechanical Engineers, The Meteorological Society of Japan, The Japan Society for Computational Engineering and Science, Japan Society for Computational Methods in Engineering, Architectural Institute of Japan, Atomic Energy Society of Japan, The Japan Society for Aeronautical and Space Sciences, The Japanese Society for Multiphase Flow, Japan Association for Earthquake Engineering, The Mathematical Society of Japan, The Japan Society of Naval Architects and Ocean Engineers, The Heat Transfer Society of Japan, The Physical Society of Japan, The Japan Society of Fluid Mechanics, The Japanese Society of Irrigation, Drainage and Rural Engineering
We investigated the relationship between the characteristics of nonlinear soil response and site conditions at various seismic stations using a large number of strong motion records and a simple index of soil nonlinearity, DNL, which can be derived from seismic record only. We found that stations which show considerable amplification during weak motion tend to show the evidence of nonlinear soil response clearly in terms of DNL, while the stations with smaller soil amplification during weak motion did not show nonlinear soil response clearly even during strong motion. The relationship between soil parameters, averaged shear-wave velocity for soil layers for example, showed poor relationship to the nonlinear soil response characteristics at a station.