Nonlinearity of Site Amplification Inferred from Strong Motion Records during the Geiyo Earthquake of March 24, 2001
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概要
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Nonlinearity of site amplification is examined by using the ground motion records of the 2001 Geiyo earthquake and subsequent smaller events. Comparisons of the site amplifications calculated from the weak and strong motion records show the nonlinear soil behavior during the main shock. The analysis of the amplification factors derived from the records of the Geiyo earthquake together with those of the 1989 Loma Prieta and 1994 Northridge earthquakes indicates that the effect of nonlinearity on peak ground acceleration becomes significant with the strain level in surface soils being larger than approximately 3×10<SUP>-4</SUP> however the nonlinear effect on peak ground velocity is not apparent up to the strain level of about 1×10<SUP>-3</SUP>.
- 一般社団法人 日本地震工学会の論文
一般社団法人 日本地震工学会 | 論文
- Scope of this issue
- Study on the Priority of Measuring against Scenario Earthquakes Based on Seismic Risk Estimation
- Investigation on Actual Disaster Responses in Local Governments in terms of Information Sharing
- Empirical Correction of Ground Motion Prediction Equations of Response Spectra at Rock Sites for Near-Field Earthquakes Considering Amplification Effect within Deep Subsurface Structure
- A Study for Estimating Suspension Time of Railway Lines Due to Earthquake