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Simulated Earthquake Ground Motions for Design Purpose

by Katsuhiko Ishida, Central Research Inst of Electric, Power Industry,
Masanobu Tohdo, Central Research Inst of Electric, Power Industry,
Hiroyuki Kameda, Central Research Inst of Electric, Power Industry,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract:

In this paper, firstly, it was clarified that there is a case where in the long-period range there is seen a tendency to follow the ?+-2$/ model approximately while in the short-period range it deviates from the ?+-2$/ model. Secondly, the design basis seismic motion spectra in slightly longer-period range (1 or 2 to 10 sec.) were formulated for the seismic isolation structures constructed on bedrock (Vs ≳ 700m/s), as well as for the high-rise buildings constructed on the coast of Tokyo Bay. Furthermore, quantitative evaluation was conducted on the uncertainties contained in these various seismic motion prediction techniques, in order to determine the direction of future research on the improvement of accuracy in the result of seismic motion prediction.

Subject Headings: Seismic design | Ground motion | Seismic tests | Earthquake resistant structures | Building design | Earthquakes | Structural analysis | Japan | Asia

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