The influence of railway vehicle modeling approach on the dynamic response of a bridge span
The paper presents the results of numerical analysis and in-situ measurements of two railway bridge spans subjected to an action of moving vehicles. The railway vehicle is introduced using four simplified load...
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| Format: | Article |
| Language: | English |
| Published: |
SITK RP
2019-11-01
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| Series: | Przegląd Komunikacyjny |
| Online Access: | http://www.transportation.overview.pwr.edu.pl/UPLOAD/BAZA-ARTYKULOW/ENG/2019/10/A_ENG_19_10_02.pdf |
| Summary: | The paper presents the results of numerical analysis and in-situ
measurements of two railway bridge spans subjected to an action of moving
vehicles. The railway vehicle is introduced using four simplified load
models: series of concentrated forces, series of lumped masses and series of
single-mass and two-mass oscillators. Numerical simulations are performed
using FE method. The dynamic parameters of the vehicle and the bridge models
are determined on the basis of modal identification results of existing
structures – EN57 traction unit and steel bridges of 10 and 30 m theoretical
span length. The vertical displacements and accelerations of the mid-span
are analysed. The numerical results are referred to the results of in-situ
measurements performed under operating conditions. A qualitative and
quantitative comparison is made for all load models and bridge spans under
analysis in the forced vibration range. |
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| ISSN: | 0033-2232 2544-6037 |