Study on Seismic Safety Improvement of Hanging Type Mechanical Structure in Industrial Facilities during Long Duration Earthquake
Study on Seismic Safety Improvement of Hanging Type Mechanical Structure in Industrial Facilities during Long Duration Earthquake
复制标题
工业设施悬挂式机械结构长历时地震抗震安全改进研究
DOI：
10.1115/pvp2015-45366
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
古屋治，吉田一博，浅岡頌，小形慶治，仁井山暢浩
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
东日本大地震中，工业设施内悬挂式机械结构发生大量震害，许多设施的工业功能停止。此外，建筑结构吊挂造成机械结构坠落损坏，机械结构部分构件脱落，造成疏散通道被切断等二次损坏。本研究旨在通过分析和实验方法提高多个工业和工厂设施中悬挂式机械结构的抗震安全性。本文通过振动台试验的实验结果来研究悬挂式机械结构的坠落机理，并描述了使用带有磁滞阻尼的非线性模型的分析结果。此外，还进行了基于低周疲劳损伤的损伤机理评估。
A lot of seismic damages of hanging type mechanical structure in industrial facilities were occurred in Great East Japan Earthquake, and the industrial functions stopped at many facilities. Moreover, fallen damage of mechanical structures from a hanging in architectural structure and the falling off of some elements in mechanical structures caused a secondary damage such as severed evacuation route. This study has been carried out to upgrade the seismic safety improvement of hanging type mechanical structure in several industrial and plant facilities from analytical and experimental approaches. In this paper, the experimental result in shaking table test is shown to investigate fallen mechanism of hanging type mechanical structure, and analytical results using nonlinear model with hysteresis damping is described. Furthermore, the evaluation of damage mechanism based on low cycle fatigue damage is conducted.