Development of bridge maintenance technique by intelligent system and practical use of smart monitoring

(1)In为了使用能够连续进行扫频振动的压电致动器检测结构缺陷，开发了能够检测螺栓部件的松动和钢结构元件的焊接缺陷的系统。此外，它表明，检测非常小的损伤，横截面的赤字等可以做这个系统。（2）在桥梁端部安装倾角仪，开发了可实现远程控制的挠度监测系统。（3）北海道十胜的Satsunai Seiryu Ohashi附近的远程控制振动监测开始运行。并与2003年十胜近海地震的破坏情况进行了比较。开发了进行两年连续监测并且能够在地震发生时进行结构监测的系统的构造，并且连续地获取数据。（4）研究了腐蚀传感器等桥梁智能监测系统。（5）对桥梁完整性评估系统BMS（Bridge Management System）或桥梁健康指数的影响因素进行了检查。

(1)In order to detect a structure defect using the piezoelectric actuator which can carry out sweep vibration continuously, the system which can detect looseness of a bolt part and the welding defect of a steel structural element was developed. Furthermore, it was shown that detection of very small damage, a cross-sectional deficit, etc. can do this system.(2)The inclinometer was installed on the bridge end and the system which can carry out the monitoring of the angle of deflection in remote control was developed.(3)Remote control vibration monitoring was started operation about Satsunai Seiryu Ohashi, Tokachi Hokkaido. And it compared with damage of the Tokachi offshore earthquake in 2003. The construction of a system which performs the continuous monitoring for two years and can carry out structure monitoring at the time of the occurrence of an earthquake was developed, and data is acquired continuously.(4)The system which can carry out the intelligent monitoring of the bridges, such as a corrosion sensor, was examined.(5)Examination of the influence factor on the bridge integrity evaluation system BMS (Bridge Management System) or the bridge health index was performed.