Details
| Original language | English |
|---|---|
| Pages (from-to) | 4583-4608 |
| Number of pages | 26 |
| Journal | Acta mechanica |
| Volume | 232 |
| Issue number | 11 |
| Early online date | 2 Oct 2021 |
| Publication status | Published - Nov 2021 |
| Externally published | Yes |
Abstract
A new semi-analytical approach to analyze the dynamic response of railway bridges subjected to high-speed trains is presented. The bridge is modeled as an Euler–Bernoulli beam on viscoelastic supports that account for the flexibility and damping of the underlying soil. The track is represented by an Euler–Bernoulli beam on viscoelastic bedding. Complex modal expansion of the bridge and track models is performed considering non-classical damping, and coupling of the two subsystems is achieved by component mode synthesis (CMS). The resulting system of equations is coupled with a moving mass–spring–damper (MSD) system of the passing train using a discrete substructuring technique (DST). To validate the presented modeling approach, its results are compared with those of a finite element model. In an application, the influence of the soil–structure interaction, the track subsystem, and geometric imperfections due to track irregularities on the dynamic response of an example bridge is demonstrated.
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Mechanical Engineering
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In: Acta mechanica, Vol. 232, No. 11, 11.2021, p. 4583-4608.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Dynamic analysis of railway bridges exposed to high-speed trains considering the vehicle–track–bridge–soil interaction
AU - König, Paul
AU - Salcher, Patrick
AU - Adam, Christoph
AU - Hirzinger, Benjamin
N1 - Funding Information: The computational results presented have been achieved (in part) using the HPC infrastructure LEO of the University of Innsbruck.
PY - 2021/11
Y1 - 2021/11
N2 - A new semi-analytical approach to analyze the dynamic response of railway bridges subjected to high-speed trains is presented. The bridge is modeled as an Euler–Bernoulli beam on viscoelastic supports that account for the flexibility and damping of the underlying soil. The track is represented by an Euler–Bernoulli beam on viscoelastic bedding. Complex modal expansion of the bridge and track models is performed considering non-classical damping, and coupling of the two subsystems is achieved by component mode synthesis (CMS). The resulting system of equations is coupled with a moving mass–spring–damper (MSD) system of the passing train using a discrete substructuring technique (DST). To validate the presented modeling approach, its results are compared with those of a finite element model. In an application, the influence of the soil–structure interaction, the track subsystem, and geometric imperfections due to track irregularities on the dynamic response of an example bridge is demonstrated.
AB - A new semi-analytical approach to analyze the dynamic response of railway bridges subjected to high-speed trains is presented. The bridge is modeled as an Euler–Bernoulli beam on viscoelastic supports that account for the flexibility and damping of the underlying soil. The track is represented by an Euler–Bernoulli beam on viscoelastic bedding. Complex modal expansion of the bridge and track models is performed considering non-classical damping, and coupling of the two subsystems is achieved by component mode synthesis (CMS). The resulting system of equations is coupled with a moving mass–spring–damper (MSD) system of the passing train using a discrete substructuring technique (DST). To validate the presented modeling approach, its results are compared with those of a finite element model. In an application, the influence of the soil–structure interaction, the track subsystem, and geometric imperfections due to track irregularities on the dynamic response of an example bridge is demonstrated.
UR - http://www.scopus.com/inward/record.url?scp=85116207331&partnerID=8YFLogxK
U2 - 10.1007/s00707-021-03079-1
DO - 10.1007/s00707-021-03079-1
M3 - Article
AN - SCOPUS:85116207331
VL - 232
SP - 4583
EP - 4608
JO - Acta mechanica
JF - Acta mechanica
SN - 0001-5970
IS - 11
ER -