Application of Modern Sensor- and Info-Technology in Long-Term Safety Monitoring of Long Span Rigid-Frame Bridge

The issue of safety has been concerned throughout the world. This paper, taking a long span continuous rigid-frame bridge as an example, introduces the application of the modern sensor- and info-technology in the said bridge by presenting the components of the monitoring system, the acquisition and transmission of the monitored data, and the bridge safety evaluation system. The experiment has proved that the application of the sensor- and info-technology into civil engineering projects can bring about good social, economical and scientific effects