掲載雑誌（和）：	日本地震工学シンポジウム論文集
Vol：	11巻
年：	2002年
頁：	763-768頁
著者（和）：	吉田 望，澤田 純男，中村 晋
タイトル（和）：	地盤の地震応答解析の精度に対する手法の影響
抄録（和）：	-
キーワード（和）：	地震応答，非線形，等価線形，Rayleigh 減衰，モード比例減衰
掲載雑誌（英）：	THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
著者（英）：	Yoshida Nozomu, Sumio Sawada, Susumu Nakamura
タイトル（英）：	EFFECT OF NUMERICAL METHODS ON ACCURACY OF EARTHQUAKE RESPONSE OF GROUND
抄録（英）：	Accuracy of earthquake response analyses of ground is examined focusing on nonlinear behavior and modeling on damping. A conventional equivalent linear analysis is improved to reproduce nonlinear behavior better, and to consider frequency proportional damping. Mode proportional damping is installed in the nonlinear analysis. SHAKE overestimates peak acceleration and maximum stress, and underestimates mplification at high frequency. Rayleigh damping that is frequently used in the engineering practice underestimates high frequency response. Modal damping sometimes cause stability problem therefore special care is required. In conclusion, improved equivalent linear method and conventional nonlinear method can be used in practice except high frequency region.
キーワード（英）：	Earthquake response, Nonlinear, Equivalent linear, Rayleigh damping, Modal damping
記事区分：	-
区分：	委員会論文集