Wireless Sensing and Embedded Monitoring Algorithm for Damage Diagnosis in PSC Girders

Jae Hyung Park; Dong Soo Hong; Jeong Tae Kim; Ki Young Koo; Chung Bang Yun; Gyuhae Park

doi:10.4028/www.scientific.net/AST.56.420

Paper Titles

SHM System Integration and Supporting Algorithms
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Piezoelectric Impedance Sensor-Based Structural Health Monitoring for Critical Members of Civil Infrastructures
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Damage Detection with Auxiliary Subsystem
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Development of a Structural Health Monitoring System for Guangzhou New TV Tower
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Wireless Sensing and Embedded Monitoring Algorithm for Damage Diagnosis in PSC Girders
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Smart Nonlinear Acoustic Based Structural Health Monitoring System
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Strain Monitoring of FRP Elements Using an Embedded Fibre Optic Sensor
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High Strain Monitoring during Fatigue Loading of Thermoplastic Composites Using Imbedded Draw Tower Fibre Bragg Grating Sensors
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Self-Detection of Delamination in Active Fiber Composites
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Wireless Sensing and Embedded Monitoring Algorithm for Damage Diagnosis in PSC Girders

Abstract:

In this study, a hybrid health monitoring technique that combines wireless sensing and embedded monitoring algorithms is proposed to realize the diagnosis of damage in PSC girder bridges. Firstly, a hybrid damage monitoring system that can alarm damage occurrence and classify damage-types is designed for PSC girder bridges. Secondly, smart sensor nodes that have wireless, stand-alone, sensing and monitoring capacities of acceleration and impedance are developed for hybrid health monitoring of the structures. Finally, the performance of the smart sensor nodes is evaluated using a laboratory-scale PSC girder bridge model for which acceleration and impedance signals were measured for prestress-loss and stiffness-loss cases.