掲載雑誌（和）： 日本地震工学シンポジウム講演集 Vol： 6巻 年： 1982年 頁： 1169-1176頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Yoshiyuki SUZUKI, Ryoichiro MlNAI タイトル（英）： SEISMIC STOCHASTIC RESPONSE OF STATE-DEPENDENT HYSTERETIC STRUCTURES 抄録（英）：
A formulation of state-dependent hysteretic systems such as degrading and stiffening hysteretic systems under random earthquake excitations is presented in the form of stochastic differential equations, and an approximate analytical method for determining the stochastic response of state-dependent hysteretic systems is also presented. By introducing appropriate extra state variables which control the degrading or stiffening of the hysteresis, the state-dependent hysteretic system can be described by a set of first-order nonlinear differential equations. The state-dependent hysteretic systems illustrated herein are Clough's model and Kato-Akiyama's model which are typical models for reinforced concrete and steel structures, respectively. The extra state variables are then concerned with the maximum displacement response and cumulative plastic deformation, which are significant response measures in assessing seismic structural reliability. Numerical examples are given for single degree of freedom systems subjected to white noise excitations. The responses of these state-dependent hysteretic systems are compared with those of the ordinary bilinear hysteretic system. The accuracy of the proposed method is verified against digital simulation. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集