<div class="csl-bib-body">
<div class="csl-entry">Stollwitzer, A., Loidl, S., Bettinelli, L., & Fink, J. (2025, June 16). <i>Developing an experiment-based holistic model for considering track-bridge interaction effects in ballasted tracks</i> [Conference Presentation]. COMPDYN 2025 - 10th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Rhodos, Greece. http://hdl.handle.net/20.500.12708/216667</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/216667
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dc.description.abstract
The consideration of track-bridge interaction (TBI) effects in ballasted tracks significantly influences the
calculation results in the dynamic assessment of railway bridges. Concerning the implementation of the
vertical and longitudinal track-bridge interaction, a wide range of different modelling options with varying
degrees of complexity is available. However, a realistic consideration of TBI effects in the dynamic
assessment of railway bridges is challenging due to a considerable scatter in the available dynamic
characteristic values.
With the overarching goal of creating an experiment-based unit consisting of a mechanical model and model-
related material parameters, the dynamic behaviour of ballasted tracks is being investigated at the TU Wien
using specialised large-scale test facilities. The test facilities simulate representative dynamically excited
sections of a ballasted track located on a bridge, thus enabling an isolated analysis of TBI effects. The
facilities are designed to allow a wide frequency range (between 1 and 25 Hz) to be investigated and to
achieve acceleration levels of up to 10 m/s² in both the vertical and longitudinal directions.
This contribution presents the research results of the experimental investigations of the dynamic properties
of the ballasted track, which include longitudinal as well as vertical and lateral TBI effects. From the
targeted experiments, model-related stiffness and damping characteristics can be derived, which are related
to different kinematics (longitudinal, vertical or lateral direction), where the stiffness and damping
behaviour depend on both displacement and acceleration amplitudes. The results presented in this
contribution enable reliable and realistic model-related dynamic characteristic values to be generated for
considering TBI effects in calculation models for practical applications. Therefore, it enables to consider the
TBI effects occurring under dynamic excitation in a holistic manner in the dynamic assessment of railway
bridges.
en
dc.language.iso
en
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dc.subject
Railway Bridges
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dc.subject
Ballasted Track
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dc.subject
longitudinal track-bridge interaction
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dc.subject
damping
en
dc.subject
Energy dissipation
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dc.subject
Dynamic characteristics
en
dc.subject
experiments
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dc.title
Developing an experiment-based holistic model for considering track-bridge interaction effects in ballasted tracks
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.researchTopic.id
C4
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tuw.researchTopic.id
C6
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tuw.researchTopic.id
C1
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tuw.researchTopic.name
Mathematical and Algorithmic Foundations
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.name
Computational Materials Science
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tuw.researchTopic.value
33
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tuw.researchTopic.value
34
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tuw.researchTopic.value
33
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tuw.publication.orgunit
E212-01 - Forschungsbereich Stahlbau
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tuw.author.orcid
0000-0003-4509-7267
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tuw.author.orcid
0000-0003-2886-310X
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tuw.author.orcid
0000-0002-3309-2197
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tuw.event.name
COMPDYN 2025 - 10th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
