Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/47138

TitleRobustness-based assessment of railway masonry arch bridges
Author(s)Neiva, Diana
Moreira, Vicente N.
Matos, José C.
Oliveira, Daniel V.
KeywordsMasonry bridges
Reliability
Structural robustness
Damage
Vulnerability
Redundancy
Issue date2017
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Abstract(s)In the past decades, structural robustness has gained major interest due to the collapse of remarkable structures, such as the Ronan Point tower and the World Trade Center. In both situations, a local damage lead to structural collapse, triggering research to restrain progressive collapse in structures. Masonry arch bridges are important historical structures, with many of them still in service. Over their long lifetime, deterioration and damage have affected their ultimate load-carrying capacity, which must be considered when evaluating the safety condition of these structures. This paper presents a methodology for robustness-based assessment of masonry arch railway bridges, by computation of the ultimate loadcarrying capacity resorting to the limit analysis method. The main damage scenarios, namely their location and extension, will be presented and discussed. The influence of such damage is discussed in detail, as well as the most influencing structural parameters, being justified the robustness capacity in such cases. The developed methodology is then applied to a Portuguese railway masonry arch bridge.
TypeConference paper
URIhttp://hdl.handle.net/1822/47138
ISBN978-3-85748-153-6
Peer-Reviewedyes
AccessRestricted access (Author)
Appears in Collections:ISISE - Comunicações a Conferências Internacionais

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