Briefing: Limit states design of railway concrete sleepers
Kaewunruen, Sakdirat, Reminnikov, Alex M., & Murray, Martin H. (2012) Briefing: Limit states design of railway concrete sleepers. Proceedings of the ICE - Transport, 165(2), pp. 81-85.
Recently updated information has raised a concern over not only the existing cost-ineffective design method but also the unrealistic analysis mode of railroad prestressed concrete sleepers. Because of the deficient knowledge in the past, railway civil engineers have been mostly aware of the over-conservative design methods for structural components in any railway track, which rely on allowable stresses and material strength reductions. Based on a number of proven experiments and field data, it is believed that the concrete sleepers which complied with the allowable stress concept possess unduly untapped fracture toughness. A collaborative research project run by the Australian Cooperative Research Centre for Railway Engineering and Technologies (RailCRC) was initiated to ascertain the reserved capacity of Australian railway prestressed concrete sleepers designed using the existing design code. The findings have led to the development of a new limit states design concept. This briefing highlights the conventional and the new limit states design philosophies and their implication to both the railway and the public community.
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|Item Type:||Journal Article|
|Keywords:||Rail Track Design , Concrete structures, Railway Systems|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||09 Jan 2013 22:46|
|Last Modified:||12 Jun 2013 15:25|
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