Developing Bridge Monitor Platform Using GPS and Communication Technology

In order to maintain security of the bridge and prevent life and property losses caused by earthquakes, typhoons, erosion and other disasters, it is worthwhile to explore the installation of monitoring and management system for bridges. However, in the current bridge management process, most of the discussion is divided into two parts: superstructure and substructure. In this research, the Wireless Sensor Network based accelerometer and inclinometer, as well as GPS correction, are installed on the superstructure to obtain complete bridge monitoring information. In the substructure of the bridge, scour monitoring equipment, two-way accelerometer, settlement terms and inclinometer are installed. All monitoring information is integrated to develop a comprehensive assessment of indicators that effectively monitor bridge safety. This study uses in-depth interviews and multivariate analysis to establish monitoring indicators. Relationships between the monitoring indicators and their weights, as well as monitoring standards, are developed through the Analytic Network Process (ANP) and the bridge model’s force endurance history analysis. Warning lights show the different levels of potential disaster so that bridge maintenance may be carried out according to the bridge’s status for timely repair and rehabilitation. The research focuses on the historical behavior database, using monitoring indicators to prompt risk management and control of existing bridges. A Web-based integrated bridge disaster prevention and management platform distributes all bridge monitoring information for users, and may serve as a precaution for bridge disasters.