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Open AccessArticle

Fatigue-Prone Details in Steel Bridges

Civil and Environmental Engineering Department, Division of Structural Engineering, Chalmers University of Technology, Sven Hultins Gata 8, 41296 Gothenburg, Sweden
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Buildings 2012, 2(4), 456-476; https://doi.org/10.3390/buildings2040456
Received: 31 August 2012 / Revised: 1 November 2012 / Accepted: 2 November 2012 / Published: 12 November 2012
(This article belongs to the Special Issue Building Failures)
This paper reviews the results of a comprehensive investigation including more than 100 fatigue damage cases, reported for steel and composite bridges. The damage cases are categorized according to types of detail. The mechanisms behind fatigue damage in each category are identified and studied. It was found that more than 90% of all reported damage cases are of deformation-induced type and generated by some kind of unintentional or otherwise overlooked interaction between different load-carrying members or systems in the bridge. Poor detailing, with unstiffened gaps and abrupt changes in stiffness at the connections between different members were also found to contribute to fatigue cracking in many details. View Full-Text
Keywords: fatigue; failure; steel bridges; girder; deformation induced cracking fatigue; failure; steel bridges; girder; deformation induced cracking
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Haghani, R.; Al-Emrani, M.; Heshmati, M. Fatigue-Prone Details in Steel Bridges. Buildings 2012, 2, 456-476.

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