Study on Seismic Safety Improvement of Mechanical Structure in Long Duration Earthquake,
Study on Seismic Safety Improvement of Mechanical Structure in Long Duration Earthquake,
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长历时地震中机械结构抗震安全性改进研究，
DOI：
10.1115/pvp2014-29008
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
吉田一博，古屋治
中科院分区：
文献类型：
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作者：
古屋治，吉田一博，浅岡頌，小形慶治，仁井山暢浩;吉田一博，古屋治
在东日本大地震中，低阻尼悬挂式机械结构在长时程地震作用下发生了大量的地震破坏。因此，工业功能在许多设施上停止了。此外，从机械结构的天花板上落下和机械结构中的一些元件的脱落被连接起来，从而引发二次损伤，例如切断疏散路线。本文从理论分析和试验研究两个方面对机械结构在长时程地震作用下的抗震安全性进行了研究。本文给出了悬吊式机械结构从天花板上跌落的基本实验结果，并描述了用具有滞后阻尼的非线性模型的分析结果。
In the Great East Japan Earthquake (GEJE), the lot of seismic damage in hanging type mechanical structure with low damping occurred by a long duration earthquake. Therefore, the industrial function stopped at many facilities. Moreover, the fall from a ceiling of a mechanical structure and the falling off of some elements in a mechanical structure were connected for outbreak of the secondary damage such as a cut of an evacuation route. This study has been carried the seismic safety improvement of mechanical structure in long duration earthquake from an analytical and experimental approach. In this paper, the fundamental experimental results of falling mechanism of hanging type mechanical structure from a ceiling is shown, and analytical results using nonlinear model with hysteresis damping is described.