抄録
This paper develops a new analytical technique to estimate stationary random response of the lumped mass structural system with such hysteretic characteristics as bi-linear, tri-linear ones. This technique utilizes some original idea about bi-linear hysteretic characteristics which suggests that this characteristics are expressed by two spring elements, one attached directly to the relative coordinates and the other indirectly to it through the coulomb slider. It is concluded that this new technique should sufficiently be available for the stationary or non-stationary stochastic earthquake response analysis of the hysteretic structural system by the fact that two results by this technique and the simulation one associated with transient displacement, velocity and shearing force responses showed fairly good agreement with each other for the cases of pseudo-stationary white noise excitations and one mass system with bi-linear hysteretic characteristecs. By making use of this technique, fundamental stationary random response characteristics are investigated from aseismic design point of view.