Clarification of Pathological Environment-Factor and Remote Diagnosis for Aging Bridge Structure

老化桥梁结构病理环境因素的明确与远程诊断

基本信息

批准号：
18360220
负责人：
OKABAYASHI Takatoshi
金额：
$ 9.51万
依托单位：
Nagasaki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18360220/
关键词：
Maintenance and Management Bridge Structure Remote Monitorin Environmental Measurement Corrosion 腐食

项目摘要

This research aimed for establishment of bridge environment and health monitoring system which consists of form inside / outside bridge diagnosis function. The developed system was installed to existing bridges in Nagasaki prefecture and bridge environment monitoring was held during the final research year. Remote monitoring based on the high accurate structural identification method was executed for real bridges and the obtained data was analyzed for evaluation of the bridge's health condition. On the other hand, the condition of bridge corrosion was investigated for island's bridges. The following are the summery of the research results.1)Development of bridge diagnosis system : Bridge remote monitoring system was developed for investigating bridge micro environment, salt environmental condition, and bridge dynamic behavior. Also, high accurate dynamic characteristics estimation with realization theories has established and applied to existing bridge for evaluation of the total system.2)Observation of bridge micro environment : The developed bridge micro environment monitoring system was installed to existing bridges for investigating environmental changes with remarkable season's changes. From obtained data, the bridge's environmental conditions were analyzed.3)Clarification of bridge corrosion environment : Salt adhesion condition to bridge surface was investigated and the factors were clarified for steel bridge in Nagasaki prefectureWritten in above, long term bridge monitoring system for structure and micro environment was established. Furthermore, bridge image and information database for maintenance and management was developed by using database engine with My SQL and PHP.By this research, fundamental structure for establishing bridge diagnosis system was established for not only domestic use but also overseas area, especially for East Asia region, which are exposed to severe environments.

这项研究旨在建立桥梁环境和健康监测系统，该系统由内部 /外部桥梁诊断功能组成。已开发的系统安装在长崎县的现有桥梁上，在最后的研究年度进行了桥梁环境监测。针对实际桥梁执行了基于高精确结构识别方法的远程监控，并分析了所获得的数据以评估桥梁的健康状况。另一方面，研究了岛桥的桥梁腐蚀状况。以下是研究结果的夏季。1）开发桥梁诊断系统：开发了桥梁远程监控系统，以研究桥梁微环境，盐环境状况和桥梁动态行为。此外，具有实现理论的高准确的动态特征估计已建立并应用于现有桥梁以评估总系统。2）桥梁微环境的观察：已将开发的桥梁微环境监测系统安装到现有的桥梁上，以调查环境变化，并具有显着的季节变化。从获得的数据中，分析了桥梁的环境条件。3）澄清桥梁腐蚀环境：研究了对桥面表面的盐粘附条件，并在上述长期桥梁的钢桥上阐明了钢桥的因子，建立了长期桥梁监测系统的结构和微环境。此外，通过将数据库引擎与我的SQL和PHP一起使用数据库引擎开发了用于维护和管理的桥梁图像和信息数据库。通过这项研究，建立了建立桥梁诊断系统的基本结构，不仅是用于国内用途，而且还针对海外地区，尤其是针对东亚地区，尤其是暴露于严重环境的东亚地区。