This book is concerned with simulation of non-stationary wave for aseismic check of nonlinear structures, in which simulated earthquake, referred to as critical earthquake, causes greater response on a given nonlinear structure than that of an observed record of an actual earthquake, referred to as target. The critical earthquake is simulated in such a way that satisfies amplitude and frequency restriction conditions. Critical earthquake is simulated by three numerical methods, all followed by an application on a given structure. In the first method, the simulation is carried out by modifying...