Site Effects on the Non-Stationarity of Earthquake Excitations and Structural Responses

  • Yoshihiro Takeuchi
Conference paper
Part of the Lecture Notes in Engineering book series (LNENG, volume 32)


A non-stationary spectral density is defined by a local time variance of component wave which passed through a narrow band filter. Using the non-stationary spectral ratio of input and output relations of structural system, time variant propagation characteristics of incident wave in multi-layered stratum are examined. The theoretical analysis of an amplification effects of incident wave in multi-layered strata are discussed with respect to a multi-layered reflection of body wave and a constructive interference of surface wave. The evaluation results by these theoretical analyses are compared with that of the spectral analysis of actually recorded accelerograms. The dynamic characteristics of large scale foundation subjected to earthquake excitation is-also examined.


Transfer Characteristic Spectral Ratio Love Wave Body Wave Constructive Interference 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1987

Authors and Affiliations

  • Yoshihiro Takeuchi
    • 1
  1. 1.Department of Architectural EngineeringOsaka Institute of TechnologyOsaka 535Japan

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