Computational & Technology Resources
an online resource for computational,
engineering & technology publications |
|
Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 67
Extending the Assessment Dynamic Ratio to Railway Bridges D. Cantero1,2, E.J. O'Brien1,3 and R. Karoumi2
1Roughan and O'Donovan Innovative Solutions, Dublin, Ireland
D. Cantero, E.J. O'Brien, R. Karoumi, "Extending the Assessment Dynamic Ratio to Railway Bridges", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 67, 2014. doi:10.4203/ccp.104.67
Keywords: dynamic, assessment, dynamic assessment ratio, vehicle, bridge, dynamic interaction, train, rail, railway, Monte Carlo.
Summary
This paper presents an alternative site-specific dynamic allowance factor for railway
bridges. It is calculated numerically using a model that allows for train-bridge
interaction and takes into account the track irregularities. A wide range of short to
medium span bridges are studied while allowing for uncertainties associated with
the traffic configuration and vehicle properties within a Monte Carlo analysis. The
results clearly show that a smaller recommended allowance for dynamics can be
safely defined, which in turn can prevent unnecessary repair or replacement of
existing bridges.
purchase the full-text of this paper (price £20)
go to the previous paper |
|