Development of the maintenance management technology of the bridges by intelligent and utilization of smart monitoring

桥梁智能化养护管理技术及智能监控应用的发展

• 批准号: 17560418
• 负责人: OSHIMA Toshiyuki
• 金额: $ 2.24万
• 依托单位: Kitami Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560418/
• 关键词: monitoring; intelligent; Bridge management; Seismic safety; 構造健全度モニタリング; 構造のインテリジェント化

1. Two lamination piezo-elastic actuators and six acceleration sensors have been arranged in actual bridge, and the member of bridge was made to generate looseness of the bolts. The experiment which detects a damage position and its damage extent was conducted, and it verified that the shape of minute strange was detectable.2. The high precision laser displacement system was built for the purpose of measuring the existence of a welding defect. Consequently, detection of the welding defect of a T type steel girder was proved.3. The damage position was identified using the analysis approach which paid its attention to power-spectrum density or phase-angle change, comparison examination of an experimental result and an analysis result was performed, and the accuracy of the analysis approach was checked.4. Information exchange and collection of researches, such as remote monitoring using the temporary dynamic experiment system and wireless LAN which are built to the virtual space using a network from Assistant professor Yasunori Miyamori, the research consortium who went back from University of Illinois, were performed.5. It verified about the practicality of a radio system remote control measurement system.6. The inclinometer by wireless LAN was applied to the vibration test of a bridge. And practicality was checked.7. The measurement result of the accelerometer by wireless LAN and the accelerometer which carried out cable wiring was compared, and practicality was examined. As a result, it turned out that the acceleration measurement system by wireless LAN has the problem which the synchronous method of multi-point measurement data and data loss generate.8. Examination about the degradation prediction approach of the RC slab which is needed for the maintenance management of a bridge was performed.

1.实际桥梁中布置了两个层压压电弹性驱动器和六个加速度传感器，并使桥梁构件产生螺栓松动。进行了损伤位置和损伤程度的检测实验，验证了微小奇异形状的可检测性.为了检测焊接缺陷的存在，建立了高精度的激光位移系统。从而验证了T型钢梁焊接缺陷的检测.采用关注功率谱密度或相位角变化的分析方法识别损伤位置，并对实验结果和分析结果进行对比检验，检验分析方法的准确性.从伊利诺伊大学返回的研究财团的宫森康典助理教授利用网络在虚拟空间建立了临时动态实验系统和无线LAN，进行了远程监视等研究的信息交换和收集。5.验证了无线电系统遥控测量系统的实用性.将无线局域网测斜仪应用于某桥梁的振动测试。并对实用性进行了检查。比较了无线局域网加速度计和电缆布线加速度计的测量结果，检验了其实用性。结果表明，无线局域网加速度测量系统存在多点测量数据同步方法和数据丢失产生的问题.针对某大桥养护管理所需的钢筋混凝土板退化预测方法进行了研究。

项目成果

A simulation of a steel cable-stayed bridge based on monitoring data and its seismic response analysis

基于监测数据的钢斜拉桥模拟及地震响应分析

• 发表时间: 2007
• 期刊: Proceedings of Hokkaido Chapter of the Japan Society of Civil Engineers Vo.63
• 作者: N.Ikeda;Y.Miyamori;T.Oshima;S.Mikami;A.Hasama
• 通讯作者: A.Hasama

Health Monitoring Technique for Steel Bridges

钢桥健康监测技术

• 发表时间: 2006
• 期刊: Proceedings of Hokkaido Chapter of JSCE 第62巻
• 作者: S.Beskhyroun;T.Oshima;S.Mikami
• 通讯作者: S.Mikami

A study on structural initial value of composite slab and the bridge with sloped webs

组合板及斜腹板桥梁结构初值研究

• 发表时间: 2007
• 期刊: Proceedings of Hokkaido Chapter of the Japan Society of Civil Engineers Vo. 63
• 作者: M.Kadota;T.Oshima;S.Mikami;T.Yamazaki
• 通讯作者: T.Yamazaki

Study on changes of the vibration charactritics of the bridge used for seven year

桥梁使用7年振动特性变化研究

• 发表时间: 2007
• 期刊: Proceedings of Hokkaido Chapter of the Japan Society of Civil Engineers Vo.63
• 作者: S.Mikami;Y.Takagi;T.Yamazaki;Y.Tsubota;T.Oshima
• 通讯作者: T.Oshima

Nondestructive damage detection scheme for steel bridges

钢桥无损损伤检测方案

• 发表时间: 2006
• 期刊: 応用力学論文集 Vol. 9
• 作者: S.Beskhyroun;S.Mikami;T.Oshima
• 通讯作者: T.Oshima