TY - JOUR
T1 - Field validation of a statistical-based bridge damage-detection algorithm
AU - Phares, Brent
AU - Lu, Ping
AU - Wipf, Terry
AU - Greimann, Lowell
AU - Seo, Junwon
PY - 2013/11
Y1 - 2013/11
N2 - This paper describes a field validation of a second-generation, statistical-based damage-detection algorithm and its ability to detect actual damage in bridges accurately. The algorithm had been theoretically validated previously. For the field tests, in lieu of introducing damage to a public bridge, two sacrificial specimens that simulated damage-sensitive locations of the bridge were mounted on the bridge, and different types and levels of damage in the form of cracks and simulated corrosion were induced in the specimens. Using strain data collected from sensors on the sacrificial specimens and on the bridge, the algorithm correctly identified the damage. Analysis of data from sensors far away from the damaged area revealed a relatively high false-positive rate.
AB - This paper describes a field validation of a second-generation, statistical-based damage-detection algorithm and its ability to detect actual damage in bridges accurately. The algorithm had been theoretically validated previously. For the field tests, in lieu of introducing damage to a public bridge, two sacrificial specimens that simulated damage-sensitive locations of the bridge were mounted on the bridge, and different types and levels of damage in the form of cracks and simulated corrosion were induced in the specimens. Using strain data collected from sensors on the sacrificial specimens and on the bridge, the algorithm correctly identified the damage. Analysis of data from sensors far away from the damaged area revealed a relatively high false-positive rate.
KW - Bridges
KW - Damage
KW - Field tests
KW - Girder
KW - Structural health monitoring
KW - Validation
UR - http://www.scopus.com/inward/record.url?scp=84886452831&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886452831&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)BE.1943-5592.0000467
DO - 10.1061/(ASCE)BE.1943-5592.0000467
M3 - Article
AN - SCOPUS:84886452831
SN - 1084-0702
VL - 18
SP - 1227
EP - 1238
JO - Journal of Bridge Engineering
JF - Journal of Bridge Engineering
IS - 11
ER -