著者
松井 徹哉 水野 啓示朗 杉山 映 江仮 佳賢 日比野 智也
出版者
日本建築学会
雑誌
日本建築学会構造系論文集 (ISSN:13404202)
巻号頁・発行日
vol.69, no.582, pp.87-94, 2004
被引用文献数
2 3

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.
著者
松井 徹哉 武藤 厚 大塚 貴弘 永谷 隆志
出版者
名城大学
雑誌
基盤研究(B)
巻号頁・発行日
2008

浮屋根と液体の非線形性を考慮した大型液体貯槽の地震時スロッシング解析理論を体系化し、縮小模型による振動台実験を実施してその妥当性を検証した。さらにその成果に基づいて、2003年十勝沖地震で発生したシングルデッキ型石油貯槽浮屋根の損傷・沈没の原因究明を試み、浮屋根や液体の非線形性に起因する非線形振動モードの存在がポンツーンに過大な応力を発生させ、浮屋根を座屈・沈没に至らせる可能性のあることを指摘した。