確率的等価線形化による多自由度弾塑性構造物のクリティカル外乱

概要

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Since earthquake ground motions are very uncertain even with the present knowledge, it is desirable to develop a robust structural design method taking into account these uncertainties. Critical excitation approaches are promising and a new probabilistic critical excitation method is proposed for SDOF and MDOF elastic-plastic structures. To simulate elastic-plastic responses under random excitations, statistical equivalent linearization is utilized. The power (area of power spectral density function) and the intensity (magnitude of power spectral density function) are fixed and the critical excitation is found under these restrictions. The peak response under the critical excitation is compared with that under recorded ground motions.
一般社団法人日本建築学会の論文
2001-03-20