下部構造に支持された免震大スパンアーチ模型の振動台実験

概要

論文の詳細を見る
Until recently few research efforts have been directed toward the application of seismic isolation systems in large-span spatial structures. This is due to the light weight and relatively long natural period of this type of structure which makes it difficult to apply the commonly used isolation system composed of laminated rubber isolators and dampers. In this paper, the use of a seismic isolation system with sliding mechanism is proposed for large-span spatial structures. In order to confirm its effectiveness in reducing the seismic response, shaking table tests are performed using a small-scale arch model supported by the base structures. It is confirmed that the proposed seismic isolation system is effective in reducing substantially the response due to horizontal ground motions. It is also demonstrated that the response of the arch is significantly influenced by the dynamic properties of the base structures, but can be well predicted by the dynamic response analysis considering the arch-base structure interaction.
社団法人日本建築学会の論文
2004-08-30