File(s) not publicly available
Vertical dynamic interaction of trains and rail steel bridges
journal contributionposted on 2017-12-06, 00:00 authored by Yan SunYan Sun, Colin ColeColin Cole, Maksym SpiryaginMaksym Spiryagin, Manicka DhanasekarManicka 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.
Category 4 - CRC Research Income
Number of Pages10
PublisherE J S E International
External Author AffiliationsInstitute for Resource Industries and Sustainability (IRIS); Queensland University of Technology; Rail Innovation Australia Pty Ltd; School of Engineering and Technology (2013- );