@article{oai:u-hyogo.repo.nii.ac.jp:02000156,
 author = {宮内, 智香 and Miyauchi, Tomoka and 平井, 敬 and Hirai, Takashi and 永野, 康行 and Nagano, Yasuyuki},
 journal = {減災復興学研究, Research of Disaster Resilience and Governance},
 month = {Mar},
 note = {本研究の目的は，巨大地震発生前後において，免震建物の免震層の水平剛性を定量的かつ容易に評価する新たな手法を構築することにより，減災と早期復興に寄与することである．中地震発生時に加速度計とけがき式変位計によって観測された地震動記録と免震層最大変位を用いて，免震層水平剛性を推定する手法を提案する．観測地震波を入力地震動とした時刻歴応答解析により水平剛性のばらつきと免震層最大変位の関係を算出する．本関係とけがき式変位計による免震層最大変位が一致する水平剛性を推定結果とする．本研究では1 回または複数回の中地震による地震動記録と免震層最大変位の観測により，免震層の水平剛性を推定できる場合があることが例示された．, The purpose of this study is to establish a new method for quantitatively and easily evaluating the performance of seismic isolation layers in seismic isolation structures before and after a large earthquake, thereby contributing to disaster mitigation and early recovery. This study proposes a method for estimating the horizontal stiffness of an isolation layer using records of seismic motions and the maximum displacement of the isolation layer for small and moderate earthquakes observed by an accelerometer and a displacement transducer. A seismic isolation building was modeled and the maximum displacement of the isolation layer due to small and moderate earthquakes was simulated by varying the upper and lower limits of the variation in the horizontal stiffness of the isolation layer with the necessary accuracy. The horizontal stiffness that matches these calculated results for the maximum displacement of the isolation layer using a displacement transducer is used as the estimated result. This study shows that the horizontal stiffness of seismic isolation devices can be estimated in some cases by using seismic records of one or multiple small-to-moderate earthquakes and observation of the maximum displacement of the isolation layer. However, some cases cannot be estimated.},
 pages = {24--28},
 title = {観測地震動と免震層最大変位に基づく免震層水平剛性の推定手法},
 volume = {1},
 year = {2024}
}