Fatigue-Prone Details in Steel Bridges

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...

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Vydáno v:Buildings (Basel) Ročník 2; číslo 4; s. 456 - 476
Hlavní autoři: Haghani, Reza, Al-Emrani, Mohammad, Heshmati, Mohsen
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 01.12.2012
Témata:
Composite materials
deformation induced cracking
failure
fatigue
girder
steel bridges
ISSN:2075-5309, 2075-5309
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Shrnutí: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.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:2075-5309
2075-5309
DOI:10.3390/buildings2040456