Dynamic performance of a vehicular bridge with lightweight FRP composite structural elements

The lightweight nature and low stiffness of fibre reinforced polymer (FRP) structures combined with low material damping may lead to excessive structural vibration and may increase the dynamic amplification of deformations and stresses in FRP bridge structures. The paper provides a short review on d...

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Bibliographic Details
Published in:MATEC web of conferences 2019, Vol.285, p.16
Main Authors: Siwowski, Tomasz, Rajchel, Mateusz
Format: Article
Language:English
Subjects:
Amplification
Concrete bridges
Concrete construction
Damping ratio
Dynamic characteristics
Dynamic loads
Fiber composites
Fiber reinforced plastics
Fiber reinforced polymers
Lightweight
Load tests
Stiffness
Structural members
Structural vibration
Superstructures
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Summary:The lightweight nature and low stiffness of fibre reinforced polymer (FRP) structures combined with low material damping may lead to excessive structural vibration and may increase the dynamic amplification of deformations and stresses in FRP bridge structures. The paper provides a short review on dynamic characterization of existing vehicular bridge superstructures madeof FRP structural components. Against the backdrop of a worldwide review the paper presents a field study on the dynamic characteristics of the hybrid FRP – concrete bridge superstructure recently built in Poland. The dynamic amplification factor, the first natural frequencyand the damping ratio were experimentally determined in static and dynamic load tests and compared with the relevant codes and requirements. The paper concludes by summarizing challenges related to structural dynamics of bridge superstructures with FRP structural components.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201928500016