Safety Assessment of Bridge Structures Using Ambient Vibration

In this study, relative load-carrying capacity (RLC) evaluation system in which the change of load-carrying capacity of a bridge structure can be estimated through the variation of the dynamic property, which is induced by the stiffness change due to the deterioration of the bridge, by using ambient...

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Bibliographic Details
Published inAdvances in Science and Technology Vol. 83; pp. 151 - 156
Main Authors Lee, Chin Hyung, Kim, Tae Heon, Park, Ki Tae, Joo, Bong Chul, Lee, Bo Mi, You, Young Jun
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.01.2013
Subjects
Bridge Structures
Relative Load-Carrying Capacity
Dynamic Propertry
Safety Assessment
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Summary:In this study, relative load-carrying capacity (RLC) evaluation system in which the change of load-carrying capacity of a bridge structure can be estimated through the variation of the dynamic property, which is induced by the stiffness change due to the deterioration of the bridge, by using ambient traffic-induced vibration was proposed. The system uses the natural excitation technique in conjunction with the eigensystem realization algorithm for identification of modal parameters. Indoor test using a truss-typed model bridge and field measurement were performed to verify the suggested system and it was shown that the RLC estimation system is suitable for the safety assessment of bridge structures in a simple and efficient manner.
Bibliography:Selected, peer reviewed papers from CIMTEC 2012 - 4th International Conference on Smart Materials, Structures and Systems, June 10-14, 2012, Terme, Italy
ISSN:1662-8969
1662-0356
DOI:10.4028/www.scientific.net/AST.83.151