多自由度線形構造物モデルに対する確率論的非定常critical外乱法

概要

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During the last three decades, the cntical excitation methods have been developed extensively to account for inherent uncertainties in predicting forthcoming earthquake events and to construct design earthquake ground motions in a reasonable way. In contrast to the conventional methods, a stochastic response index is treated as the objective function to be maximized. The power and the intensity are fixed and the critical excitation is found under these restrictions. It is shown that the original idea for stationary random inputs can be utilized effectively in the procedure for finding a critical excitation for nonstationary random vibrations of nonproportionally damped MDOF structural systems.
2000-10-30