掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 9-2巻 年： 1994年 頁： 1957-1962頁 著者（和）： 家村 浩和, 渡辺 典男, 南荘 淳 タイトル（和）： 連続桁橋梁における能動的制震システムに関する基礎的研究 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Hirokazu lemura, Norio WATANABE, Atushi NANJO タイトル（英）： STUDIES ON ACTIVE SEISMIC RESPONSE CONTROL OF BRIDGES WITH CONTINUOUS GIRDERS 抄録（英）：
In this study, effects of active variable stiffness bearings (AVSB) and joint dampers (JD) to reduce seismic response of bridge girders are numerically investigated. Firstly, earthquake response of a simple bridge girder model with AVSB of which stiffness can be changed with relatively simple mechanism and very low energy is examined. The most effective stiffness is actively selected to introduce the minimum earthquake energy into the structure. The results show that the maximum displacement response and the total input energy are reduced to 50% of those without the control. Secondly, in addition to AVSB, JD is installed between the adjacent girders to increase energy absorbing capacity of the total system. This system is schematically illustrated in Fig.9. Displacement response of the mass number 1 and 2 with and without the control is compared. It is clearly found that displacement response of both mass is effectively reduced. Total input energy to the system is found to be reduced to 40% of that without the control. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集