Validation of a Wireless Traffic Vibration Monitoring System for the Voigt Bridge

Date Added: Jul 2009
Format: PDF

Recently, a variety of wireless structural health monitoring systems has been demonstrated as viable substitutes for traditional high-cost tethered monitoring systems. In this study, a prototype wireless sensing system is deployed upon the Voigt Bridge (La Jolla, CA) to validate its performance against a cabled monitoring system. Using 20 wireless sensors deployed over two spans of the bridge superstructure, acceleration time histories and their corresponding Fourier transforms collected from traffic-induced vibration suggest excellent correlation with those obtained from the tethered system.