Determination of Load-Carrying Capacity of Railway Steel and Concrete Composite Bridges

Abstract:

In the frame of global European standardization and in consequence of new knowledge related to existing bridges, the need for revision of the service handbook "Determination of load-carrying capacity of railway bridges" grown up. The paper presents general concepts and basic assumptions for determining the railway bridge load-carrying capacity. In contrast to design of a new bridge, additional data related to existing bridge condition and behavior like information from regular inspections and real state of degradation can be taken into account. Based on these data together with the remaining lifetime, a modification of reliability levels for existing bridges based on the mathematic theory of probability can be adopted in the evaluation process. Special attention is also paid to the specific features of determination of load caring capacity of steel-concrete composite bridges in exploitation. Recommendation and allowances for global analysis of existing composite steel and concrete superstructures for the purpose of the load-carrying capacity estimation are discussed as well.

• Periodical: Key Engineering Materials (Volume 691)
• Pages: 172-184
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.691.172
• Online since: May 2016
• Authors: Josef Vican, Jaroslav Odrobinak*, Peter Kotes
• Keywords: Composite Girders, Existing Bridges, Load-Carrying Capacity, Railway Bridges

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