Abstract
Fast evaluation method for seismic maximum displacement response from acceleration response is constructed. The method is based on random vibration theory, and structural displacement and ground velocity, which are known to be related to structural damage and seismic intensity, are estimated. First, statistical relationship between response acceleration and response displacement is derived using random vibration theory. Then, the relationship is extended to the case that ground motion is measured in addition. The proposed method is applied to three cases: i) unknown ground motion; ii) known ground motion; and iii) known ground motion model with unknown parameters. Accuracy of the method is evaluated through numerical simulation, and its applicability is discussed.
