Application of Wireless Sensors for Structural Health Monitoring And Control

Wireless sensors have been proposed for use in structural health monitoring systems because they offer low-installation costs and automated data processing functionality. To validate the performance of the proposed WiMMS (wireless modular monitoring system) on the vibration measurement of large-scale civil structures, a three-story half-scale steel structure is instrumented with a wireless monitoring system assembled from a network of six wireless sensors and tested it on a shaking table to ensure the reliability of the data communication. Field application of WiMMS to ambient vibration survey of Gi-Lu cable-stayed bridge is investigated. Finally, the preliminary study on structural control using MR-damper through WiMMS is also presented.