Abstract
Dynamic damaging potential of ground motions must be evaluated by response behavior of structures, and it is necessary to indicate what properties of ground motions are most appropriate for evaluation. For that purpose, behavior of energy input process and hysteretic energy dissipation is investigated in this study. Momentary input energy of ground motions are corresponded to displacement of structures, and it is found that damaging properties can be evaluated almost appropriately by momentary energy response and response type of hysteretic loop. Based on these results, a procedure to estimate inelastic response displacement of structures by elastic momentary input energy spectra of ground motions is proposed, and almost suitable values can be estimated.