Dynamic response of railway bridges during train passage considering track irregularity uncertainty

The aim of this paper is to quantify the effect of track irregularity on the dynamic response of railway bridges during train passage. Literature survey results found that the standard deviation of the vertical track irregularity of recent general track condition in Japan is about 3 mm for conventio...

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Bibliographic Details
Published inJournal of Structural Engineering, A Vol. 68A; pp. 146 - 157
Main Authors Tokunaga, Munemasa, Matsuoka, Kodai, Ikeda, Manabu
Format Journal Article
LanguageJapanese
Published Japan Society of Civil Engineers 2022
Subjects
Monte Carlo simulation
railway bridges
track irregularity
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Summary:The aim of this paper is to quantify the effect of track irregularity on the dynamic response of railway bridges during train passage. Literature survey results found that the standard deviation of the vertical track irregularity of recent general track condition in Japan is about 3 mm for conventional lines and about 1.5 mm for Shinkansen. Numerical simulations considering vehicle / bridge dynamic interactions and the track irregularity as a stochastic model using Monte Carlo method were carried out. An impact coefficient of track irregularity was proposed as a function of the speed parameter and the irregularity amplitude so that the non-exceeding probability is approximately 95% for the calculated results.
ISSN:1881-820X
DOI:10.11532/structcivil.68A.146