Paper Info
Title
Comparative Study of Damage Detection Methods Based on Long-Gauge FBG for Highway Bridges.
Abstract
Damage detection of highway bridges is a significant part of structural heath monitoring. Conventional accelerometers or strain gauges utilized for damage detection have many shortcomings, especially their monitoring gauge length being too short, which would result in poor damage detection results. Under this circumstance, long-gauge FBG sensors as a novel optical sensor were developed to measure the macro-strain response of the structure. Based on this sensor, many derived damage detection methods were proposed. These methods exhibit various characteristics and have not been systematically compared. As a result, it is difficult to evaluate the state of the art and also leads to confusion for users to select. Therefore, a strict comparative study on three representative methods using long-gauge FBG was carried out. First, these methods' theoretical backgrounds and formats were reformulated and unified for better comparison. Then, based on validated vehicle-bridge coupling simulation, these methods' performances were tested through a series of parametric studies including various damage scenarios, vehicle types, speeds, road roughness and noise levels. The precision and reliability of three methods have been thoroughly studied and compared.
Year
DOI
Venue
2020
10.3390/s20133623
SENSORS
Keywords
DocType
Volume
long-gauge FBG,damage detection,highway bridges,vehicle-bridge interaction,comparative study
Journal
20
Issue
ISSN
Citations 
13
1424-8220
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Shi-Zhi Chen100.34
De-Cheng Feng221.10
Wan-Shui Han300.34