確率変数を含む非線形地盤の地震応答量の評価法 : 媒介変数1次近似法 (その2)

概要

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The stochastic estimation method for the nonlinear earthquake response of the indeterminate ground is presented based on the first-order-intervening variable method. The first-order-intervening variable method is applicable to the stochastic estimation of the variation of the nonlinear earthquake response of the indeterminate ground, because the parameters of the intervening variables can be determined by the sample values of multiple points without the direct differentiation by the random variables. The accuracy of the presented method is verified by the onedimensional ground model. The necessary number of the sample values for the presented method is proportional to the number of random variables, so that its calculation efficiency is better than Monte-Carlo method.
1998-05-30