A study on developing technology for evaluating seismic capacity of actual structures using seismic interferometry

地震干涉法评价实际结构抗震能力技术研究

• 批准号: 22560560
• 负责人: MATSUSHIMA Shinichi
• 金额: $ 2.83万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560560/
• 关键词: 耐震; 防災; 構造工学・地震工学; 波動干渉法; 実建物; 耐震安全性診断; モデルパラメータ; IT計測技術; 自己相関関数; 相互相関関数; グリーン関数

The aim of this study was to develop a system for evaluating seismic capacity of actual structures accurately by identifying the model parameter (mass, rigidity, damping) of structures from the observed waveforms which we obtained by constructing a new observation system using the information technology combined with existing sensors. As a result of consecutive recording of simultaneous, long-term, multi-station observation for a real-size steel frame structure, we found that the effect of the season, temperature or rain is small to the dynamic properties, compared to the effect of wind. Also, after experiments of putting additional mass on one story at a time and observing the change of the properties each time, we found that the actual rigidity and mass was about 50 and 65 %, respectively, of the value obtained from the plan for some stories.

这项研究的目的是开发一个系统，通过从观察到的波形中确定模型参数（质量，刚度，阻尼）来评估实际结构的地震能力，我们通过使用信息技术结合来构建新的观察系统，从而从观察到的波形中识别该系统。与现有传感器。由于连续记录了实际尺寸的钢制框架结构的同时长期，多站观察，我们发现季节，温度或雨水的效果对动态特性而言很小风。同样，在一次在一个故事上添加额外质量并每次观察属性的变化之后，我们发现实际刚度和质量分别约为50％和65％，大约是从计划中获得的价值的50％和65％故事。

项目成果

微動観測による建設中の免震建物の振動特性評価

利用微震观测评估在建隔震建筑的振动特性

• 发表时间: 2010
• 作者: 長嶋史明;前野敏元;松島信一;川瀬博
• 通讯作者: 川瀬博