Title: Damage identification on the Z24 bridge using vibration monitoring
Authors: Maeck, Johan ×
Peeters, B
De Roeck, Guido #
Issue Date: Jan-2001
Publisher: Iop publishing ltd
Series Title: Smart materials & structures vol:10 issue:3 pages:512-517
Abstract: In the framework of developing a non-destructive damage identification technique, vibration monitoring is a useful evaluation tool that relies on the fact that the occurrence of damage in a structural system leads to changes in its dynamic properties. The damage identification techniques are based on the observed shifts in eigenfrequencies and modeshapes and relate the dynamic characteristics to a damage pattern of the structure. The presented technique makes use of the calculation of modal bending moments and curvatures to derive the bending stiffness at each location. Damage identification results are compared with results from a classical sensitivity based updating technique. The basic assumption in both techniques is that damage can be directly related to a decrease of stiffness in the structure. Damage assessment techniques are validated on the progressively damaged prestressed concrete bridge Z24 in Switzerland, tested in the framework of the BRITE-EURAM project SIMCES. A series of full modal surveys are carried out on the bridge before and after applying a number of damage scenarios.
ISSN: 0964-1726
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Civil Engineering - miscellaneous
Structural Mechanics Section
× corresponding author
# (joint) last author

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