Details
| Original language | English |
|---|---|
| Journal | COMPDYN Proceedings |
| Volume | 2021-June |
| Publication status | Published - 2021 |
| Externally published | Yes |
| Event | 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2021 - Athens, Greece Duration: 28 Jun 2021 → 30 Jun 2021 |
Abstract
In this contribution, the dynamic response of two railway bridges, represented by a viscoelastically supported Euler-Bernoulli model, subjected to high-speed trains is analyzed and discussed. Different types of high-speed trains are considered, which are modeled as moving mass-spring-damper (MSD) system. The structural response is determined by a dynamic substructuring approach, in which the equation of motion of the beam bridge model and the equations of motion of the MSD system, both written in state space, are coupled using a generalized corresponding assumption. The coupled set of equations of motion representing the dynamic soil-structure-vehicle interaction model are solved by time history analysis. The utilized approach captures all essential features of dynamic soil-structure-vehicle interaction and allows for a numerically efficient evaluation of the dynamic responses of the structure. Particular attention is paid to the influence of the MSD system on the beam bridge during approach and after departure. The structural response of the considered beam bridges is compared and discussed for the different types of high-speed trains and different subsoil conditions.
Keywords
- Approach and departure phase, Bridge dynamics, Dynamic substructuring, Soil-structure-vehicle interaction
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computers in Earth Sciences
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Mathematics(all)
- Computational Mathematics
- Engineering(all)
- Civil and Structural Engineering
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In: COMPDYN Proceedings, Vol. 2021-June, 2021.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Application and assessment of a dynamic soil-bridge-train interaction model
AU - Hirzinger, Benjamin
AU - Adam, Christoph
N1 - Funding Information: The computational results presented have been achieved (in part) using the HPC infrastructure LEO of the University of Innsbruck.
PY - 2021
Y1 - 2021
N2 - In this contribution, the dynamic response of two railway bridges, represented by a viscoelastically supported Euler-Bernoulli model, subjected to high-speed trains is analyzed and discussed. Different types of high-speed trains are considered, which are modeled as moving mass-spring-damper (MSD) system. The structural response is determined by a dynamic substructuring approach, in which the equation of motion of the beam bridge model and the equations of motion of the MSD system, both written in state space, are coupled using a generalized corresponding assumption. The coupled set of equations of motion representing the dynamic soil-structure-vehicle interaction model are solved by time history analysis. The utilized approach captures all essential features of dynamic soil-structure-vehicle interaction and allows for a numerically efficient evaluation of the dynamic responses of the structure. Particular attention is paid to the influence of the MSD system on the beam bridge during approach and after departure. The structural response of the considered beam bridges is compared and discussed for the different types of high-speed trains and different subsoil conditions.
AB - In this contribution, the dynamic response of two railway bridges, represented by a viscoelastically supported Euler-Bernoulli model, subjected to high-speed trains is analyzed and discussed. Different types of high-speed trains are considered, which are modeled as moving mass-spring-damper (MSD) system. The structural response is determined by a dynamic substructuring approach, in which the equation of motion of the beam bridge model and the equations of motion of the MSD system, both written in state space, are coupled using a generalized corresponding assumption. The coupled set of equations of motion representing the dynamic soil-structure-vehicle interaction model are solved by time history analysis. The utilized approach captures all essential features of dynamic soil-structure-vehicle interaction and allows for a numerically efficient evaluation of the dynamic responses of the structure. Particular attention is paid to the influence of the MSD system on the beam bridge during approach and after departure. The structural response of the considered beam bridges is compared and discussed for the different types of high-speed trains and different subsoil conditions.
KW - Approach and departure phase
KW - Bridge dynamics
KW - Dynamic substructuring
KW - Soil-structure-vehicle interaction
UR - http://www.scopus.com/inward/record.url?scp=85120794044&partnerID=8YFLogxK
U2 - 10.7712/120121.8580.18641
DO - 10.7712/120121.8580.18641
M3 - Conference article
AN - SCOPUS:85120794044
VL - 2021-June
JO - COMPDYN Proceedings
JF - COMPDYN Proceedings
SN - 2623-3347
T2 - 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2021
Y2 - 28 June 2021 through 30 June 2021
ER -