Vertical dynamic interaction of trains and rail steel bridges

Sun, Yan Q, Cole, Colin, Spiryagin, Maksym, & Dhanasekar, Manicka (2013) Vertical dynamic interaction of trains and rail steel bridges. Electronic Journal of Structural Engineering, 13(1), pp. 88-97.

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Rail steel bridges are vulnerable to high impact forces due to the passage of trains; unfortunately the 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.

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ID Code: 69122
Item Type: Journal Article
Refereed: Yes
Keywords: Train-track/bridge Interaction, Train Critical Speed, Impact Factor, Dynamic Factor
ISSN: 1443-9255
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 25 Mar 2014 05:17
Last Modified: 26 Mar 2014 01:06

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