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- Title
Damage detection in slab-on-girder bridges using vibration characteristics.
- Authors
Shih, H. W.; Thambiratnam, D. P.; Chan, T. H. T.
- Abstract
ABSTRACT This paper develops and applies a multi-criteria procedure, incorporating changes in natural frequencies, modal flexibility and the modal strain energy, for damage detection in slab-on-girder bridges. The proposed procedure is first validated through experimental testing of a model bridge. Numerically simulated modal data obtained through finite element analyses are then used to evaluate the vibration parameters before and after damage and used as the indices for assessment of the state of structural health. The procedure is illustrated by its application to full scale slab-on-girder bridges under different damage scenarios involving single and multiple damages on the deck and girders. Copyright © 2012 John Wiley & Sons, Ltd.
- Subjects
MODAL strain energy method; BRIDGE failures; CONCRETE slabs; GIRDERS; STRUCTURAL analysis (Engineering)
- Publication
Structural Control & Health Monitoring, 2013, Vol 20, Issue 10, p1271
- ISSN
1545-2255
- Publication type
Article
- DOI
10.1002/stc.1535