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Analytical Study of Fatigue-crack Propagation on Web-Gap Plate

Analytical Study of Fatigue-crack Propagation on Web-Gap Plate
Auteur(s): ,
Présenté pendant IABSE Workshop: Ignorance, Uncertainty, and Human Errors in Structural Engineering, Helsinki, Finland, 15-16 February 2017, publié dans , pp. 92-98
DOI: 10.2749/helsinki.2017.092
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The study describes behaviour of fatigue-cracks for evaluation of structural repair priority. Around 65% of the total length of the Metropolitan Expressway in Japan is composed of viaducts made of s...
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Auteur(s): (Metropolitan Expressway Company Limited, Tokyo, Japan)
(Metropolitan Expressway Company Limited, Tokyo, Japan)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Workshop: Ignorance, Uncertainty, and Human Errors in Structural Engineering, Helsinki, Finland, 15-16 February 2017
Publié dans:
Page(s): 92-98 Nombre total de pages (du PDF): 7
Page(s): 92-98
Nombre total de pages (du PDF): 7
DOI: 10.2749/helsinki.2017.092
Abstrait: The study describes behaviour of fatigue-cracks for evaluation of structural repair priority. Around 65% of the total length of the Metropolitan Expressway in Japan is composed of viaducts made of steel. And fatigue crack problem has been occurred on the steel structures. In particular, around 30% of all the fatigue-cracks occurred at “Web-Gap Plate(WGP)” which is attached in plate girder bridges. This study focused on the fact that those cracks do not always induce collapse of the girder bridge immediately, even though the number of cracks, which are needed to repair, is becoming increasing. As a result of the study, repair priorities of around 60% cracks on WGP can be lowered by analysing maintenance data accumulated since 2001.