Ambient vibration testing and finite element model updating of a concrete footbridge

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dc.contributor.authorHamid-Lakzaeian, Fatemeh-
dc.descriptionThe 4th International Operational Modal Analysis Conference (IOMAC 2011), Istanbul, Turkey, 9-11 May 2011en_US
dc.description.abstractThe paper aims to present finite element (FE) model updating process of a concrete footbridge using output-only measurement. The FE model of the structure under investigation was developed by ABAQUS before to proceed with ambient vibration testing. The natural frequencies and their associated mode shapes of the structure were identified by analyzing ambient vibrations data using frequency domain decomposition technique in ARTeMIS. Applying design of experiment technique (DOE) on selected structural parameters and manual tuning by trial and error resulted in better correlation between FE and measured modes. Subsequently, automatic updating using FEMtools based on prototype testing improved the simulated dynamic properties obtained from initial FE analysis in a meaningful way. In updating procedure, the most uncertain structural parameters i.e. stiffness values of spring supports were modified so as to acquire the best possible match between test and FE data.en_US
dc.publisherInternational Operational Modal Analysis Conference (IOMAC)en_US
dc.subjectFinite element model updatingen_US
dc.subjectModal test dataen_US
dc.titleAmbient vibration testing and finite element model updating of a concrete footbridgeen_US
dc.typeConference Publicationen_US
dc.statusPeer revieweden_US
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