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Vertical dynamic interaction of trains and rail steel bridges

journal contribution
posted on 06.12.2017, 00:00 by Yan Sun, Colin Cole, Maksym Spiryagin, Manicka Dhanasekar
Rail steel bridges are vulnerable to high impact forces due to the passage of trains; unfortunatelythe determination of these transient impact forces is not straightforward as these are affected by a large number of parameters, including the wagon design, the wheel-rail contact and the design parameters of the bridge deck and track, as well as the operational parameters – wheel load and speed. To determine these impact forces, a detailed rail train-track/bridge dynamic interaction model has been developed, which includes a comprehensive train model using multi-body dynamics approach and a flexible track/bridge model using Euler–Bernoulli beam theory. Single and multi-span bridges have been modelled to examine their dynamic characteristics. From the single span bridge, the train critical speed is determined; the minimum distance of two peak loadings is found to affect the train critical speed. The impact factor and the dynamic characteristics are discussed.

Funding

Category 4 - CRC Research Income

History

Volume

13

Issue

1

Start Page

88

End Page

97

Number of Pages

10

ISSN

1443-9255

Location

Australia

Publisher

E J S E International

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Institute for Resource Industries and Sustainability (IRIS); Queensland University of Technology; Rail Innovation Australia Pty Ltd; School of Engineering and Technology (2013- );

Era Eligible

Yes

Journal

Electronic journal of structural engineering.

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