Development of an seismic damage detection system for civil infrastructures

民用基础设施地震损伤检测系统的开发

• 批准号: 15206054
• 负责人: YOKOYAMA Koichi
• 金额: $ 25.46万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15206054/
• 关键词: seismic damage detection; optical fiber sensing technology; intelligent sensor; piezoelectric sensor; non-destructive diagnosis; structural health monitoring; shaking table test; response ductility factor; 分布型光センシング技術; ワイヤレスセンサ; モニタリング; 振動実験

1. Development of the broadband sensor for seismic damage detectionIn order to develop the broadband sensor for seismic damage detection of large-scale civil infrastructures, the broadband optical fiber sensor was developed by using FBG sensor. In the broadband FBG optical fiber sensor, a novel packaging method was proposed for practical adaptation of dynamic long-gauge FBG strain sensors in large-scale structures. The broadband memory sensor was also developed by using PVDF film which is one of the piezoelectric materials. The basic static and dynamic performance of PVDF film sensor was confirmed through a series of laboratory tests.2. Development of non-destructive diagnosis and analysis methodA structural non-parametric assessment approach was proposed with neural networks for the purpose of damage detection for structural health monitoring using dynamic responses in time series under environmental excitations or small earthquakes. This approach was expanded real-time damage detection method of suspension bridge and RC pier of bridge.3. Suggestion of an earthquake damage detection systemBased on above research results, the concept of seismic damage detection system was proposed. Then, a prototype intelligent sensor system by means of large memory capacity and wireless LAN unit was produced.

1.宽带地震损伤传感器的研制为了研制用于大型民用基础设施地震损伤检测的宽带传感器，利用光纤布拉格光纤传感器研制了宽带光纤传感器。在宽带FBG光纤传感器中，提出了一种新的封装方法，以适应大型结构物中动态长径FBG应变传感器的实际应用。利用压电材料之一的聚偏氟乙烯薄膜研制了宽带记忆传感器。通过一系列的实验室测试，证实了PVDF薄膜传感器的基本静态和动态性能。无损诊断与分析方法的发展提出了一种基于神经网络的结构非参数评估方法，用于环境激励或小震作用下结构健康监测的时间序列动态响应损伤检测。扩展了悬索桥和钢筋混凝土桥墩的实时损伤检测方法。基于上述研究成果，提出了震害检测系统的概念。在此基础上，利用大容量存储和无线局域网单元，实现了一种智能传感器原型系统。

项目成果

ニューラルネットワークを用いた吊橋のリアルタイム損傷判定法の検討

基于神经网络的悬索桥损伤实时判定方法研究

• 发表时间: 2004
• 期刊: 土木学会第59回年次学術講演会・講演概要集 1-257
• 作者: 黒田 聡;横山功一;原田隆郎
• 通讯作者: 原田隆郎

Xu, B., Wu, Z.S., Yokoyama, K.: "Post Earthquake Damage Detection for a Cable Stayed Bride with Neural Networks"Journal of Applied Mechanics, JSCE. Vol.6. 1149-1156 (2003)

Xu, B., Wu, Z.S., Yokoyama, K.：“利用神经网络进行斜拉桥震后损伤检测”应用力学学报，JSCE。

Response Time Series Based Structural Parametric Assessment Approach with Neural Networks

基于响应时间序列的神经网络结构参数评估方法

• 发表时间: 2003
• 期刊: The 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure (SHMII-1'2003) Vol.1
• 作者: Xu;B.;Wu;Z.S.;Yokoyama;K.
• 通讯作者: K.

Development of Remote Monitoring System of Civil Infrastructures

民用基础设施远程监控系统的开发

• 发表时间: 2005
• 期刊: Proceedings of the 9th Symposium on Motion and Vibration Control (MOVIC2005) C-17
• 作者: Harada;T.;Miyazawa;S.;Wu;Z.S.
• 通讯作者: Z.S.

Laboratory test on seismic damage detection using PVDF film sensor

PVDF薄膜传感器地震损伤检测室内试验

• 发表时间: 2005
• 期刊: Proceedings of the 9th Symposium on Motion and Vibration Control (MOVIC2005) C-20
• 作者: Sonehara;K.;Yokoyama;K.;Harada;T.;Tanabe;K.
• 通讯作者: K.