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Modeling of a prestressed concrete bridge with 3D finite elements for structural health monitoring using model updating techniques
Schommer, Sebastian; Kebig, Tanja; Nguyen, Viet Ha et al.
2018In ISMA2018 International Conference on Noise and Vibration Engineering
 

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Keywords :
finite elements; solid; prestressed; damage detection
Abstract :
[en] This paper presents a linear finite element model for a prestressed concrete beam, which was part of a real bridge. Static and dynamic tests were carried out and compared to the numerical simulation responses. A solid finite element model was created including the prestressed concrete beam, permanent dead load, two additional live loads and a shaker. A well planned finite element model is very important for later detection and localization of damage. Therefore, a mapped mesh was used to define so-called ‘slices’, which enables describing stiffness changes, e.g. damage. The model validation was performed by comparing simulated results to measured responses in the healthy state of the beam. After validation of the reference model, it is possible to modify the bending stiffness along the longitudinal axis of the beam by modifying Young’s moduli of different slices to adapt for the effect of damage.
Disciplines :
Civil engineering
Mechanical engineering
Author, co-author :
Schommer, Sebastian ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Kebig, Tanja ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Nguyen, Viet Ha ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Zürbes, Arno
Maas, Stefan ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
yes
Language :
English
Title :
Modeling of a prestressed concrete bridge with 3D finite elements for structural health monitoring using model updating techniques
Publication date :
2018
Event name :
ISMA2018 International Conference on Noise and Vibration Engineering
Event organizer :
KU Leuven
Event place :
Leuven, Belgium
Event date :
from 17-09-2018 to 19-09-2018
Main work title :
ISMA2018 International Conference on Noise and Vibration Engineering
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 13 December 2018

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