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- W654540998 abstract "Studies of many seismic disasters show that the dynamic characteristics of soil layers have a very important effect on the seismic response of superstructures. In this paper, a simplified method is suggested for determining the response modes of soil layers with variable properties. An effective computing approach is developed for analyzing the seismic responses of different types of soil layers. The method is based on the one-dimensional shear wave equation and the modal perturbation technique. The modal characteristics of the complicated soil layer are calculated approximately in a subspace spanned by several lower modes of an equivalent homogeneous soil layer with the same depth, average shear modulus and mass density. As a result, solving the wave equation with variable coefficients is replaced by solving the linear algebraic equations. The simplified method can be applied easily to the layered homogeneous soil, and also to the soil layer in which the property of soil media changes with depth in any form, such as analytical or discrete form. Numerical results confirm that this method is more precise than other methods previously proposed." @default.
- W654540998 created "2016-06-24" @default.
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- W654540998 date "1997-04-01" @default.
- W654540998 modified "2023-09-23" @default.
- W654540998 title "DYNAMIC ANALYSIS FOR MODAL CHARACTERISTICS AND SEISMIC RESPONSE OF SOIL LAYERS WITH VARIABLE PROPERTIES" @default.
- W654540998 hasPublicationYear "1997" @default.
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