飽和型アクティブ制御力下の弾塑性構造物のランダム地震応答解析

抄録

This paper develops an analytical approach to the estimation of seismic random response of elasto-plastic systems under active saturation control force. The seismic excitation is idealized as stationary non-white random process, the active control force as a velocity feedback type one with saturation characteristics and the structural model as a s. d. o. f. system with bilinear hysteretic characteristics. The hysteretic and saturation characteristics are replaced with linear ones using an equivalent linearization technique. Some numerical calculations are carried out, and the results are presented concerning the effect of the saturation of control force and the nonlinearity of systems on seismic response quantities.