Synthetic rating system for railway bridge management

Aflatooni, Mehran, Chan, Tommy H.T., Thambiratnam, David, & Thilakarathna, I. (2013) Synthetic rating system for railway bridge management. Journal of Civil Structural Health Monitoring.

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Railway bridges deteriorate with age. Factors such as environmental effects on different materials of a bridge, variation of loads, fatigue, etc. will reduce the remaining life of bridges. Dealing with thousands of bridges and several factors that cause deterioration, makes the rating process extremely complicated. Current simplified but practical methods of rating a network of bridges are not based on an accurate structural condition assessment system. On the other hand, the sophisticated but more accurate methods are only used for a single bridge or particular types of bridges. It is therefore necessary to develop a practical and accurate system, which will be capable of rating a network of railway bridges. This article introduces a new method to rate a network of bridges based on their current and future structural conditions. The method identifies typical bridges representing a group of railway bridges. The most crucial agents will be determined and categorized to criticality and vulnerability factors. Classification based on structural configuration, loading, and critical deterioration factors will be conducted. Finally a rating method for a network of railway bridges that takes into account the effects of damaged structural components due to variations in loading and environmental conditions on the integrity of the whole structure will be proposed. The outcome of this article is expected to significantly improve the rating methods for railway bridges by considering the unique characteristics of different factors and incorporating the correlation among them.

Impact and interest:

5 citations in Scopus
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ID Code: 58873
Item Type: Journal Article
Refereed: Yes
Keywords: Rating Bridges, Critical Factors, Bridge Classification, Criticality, Vulnerability, Bridge Management
DOI: 10.1007/s13349-013-0035-6
ISSN: 2190-5479
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Springer-Verlag Berlin Heidelberg
Copyright Statement: The original publication is available at
Deposited On: 03 Apr 2013 00:45
Last Modified: 24 Apr 2013 06:00

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