Shifted resonance of railway bridges under trains passing by each other
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00558755" target="_blank" >RIV/68378297:_____/22:00558755 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1142/S0219455422710018" target="_blank" >https://doi.org/10.1142/S0219455422710018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/S0219455422710018" target="_blank" >10.1142/S0219455422710018</a>
Alternative languages
Result language
angličtina
Original language name
Shifted resonance of railway bridges under trains passing by each other
Original language description
Dynamic vehicle-bridge interaction (VBI) plays a crucial role in the train-induced vibrations of a railway bridge for its coupling effects may reduce the bridge response and down-shift the resonant speed. The commonly used nominal theoretical resonant speed (= f(b)D) of a typical railway bridge, however, is only related to the bridge frequency (f(b)) and car length (D), but it neglects the VBI effects of the moving trains. Such a shifted resonance phenomenon would become significant for a bridge under two trains passing by each other. This study develops a method using an equivalent modal mass to be added onto the bridge to account for the frequency shift due to the presence of multiple train cars for estimation of the shifted resonant speed. The numerical study demonstrates that the proposed method can predict the shifted resonant speed and explain the shifted-resonance phenomenon of railway bridges under train passages.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GC21-32122J" target="_blank" >GC21-32122J: Vehicle scanning-based structure monitoring for cable supported bridges</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Structural Stability and Dynamics
ISSN
0219-4554
e-ISSN
1793-6764
Volume of the periodical
22
Issue of the periodical within the volume
7
Country of publishing house
SG - SINGAPORE
Number of pages
11
Pages from-to
2271001
UT code for WoS article
000810492300002
EID of the result in the Scopus database
2-s2.0-85123985728