A REPORT ON RETROFIT METHOD UNDER TRUFFIC AGAINST FATIGUE CRACKING ON THE ORTHOTROPIC DECK PLATE WELDING

A REPORT ON RETROFIT METHOD UNDER TRUFFIC AGAINST FATIGUE CRACKING ON THE ORTHOTROPIC DECK PLATE WELDING

Recently, a number of fatigue cracks have been detected in orthotropic steel decks. Among them, fatigue cracking in the welded joint between steel deck and ribs or stiffeners is possible to propagate to deck plate and it has a risk to do harm to the traffic pass by on the deck plate. So, development...

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Veröffentlicht in:Kou kouzou rombunshuu 2015/03/25, Vol.22(85), pp.85_85-85_100
Hauptverfasser: KAWAKAMI, Yoriko, TAKADA, Yoshihiko, SAKANO, Masahiro
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Crack propagation
Decks
fatigue
Fatigue failure
Fatigue tests
Orthotropic deck plate
retrofit, welding
Retrofitting
Ribs
Steels
vibration monitoring
Welded joints
work under service
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Beschreibung
Zusammenfassung:Recently, a number of fatigue cracks have been detected in orthotropic steel decks. Among them, fatigue cracking in the welded joint between steel deck and ribs or stiffeners is possible to propagate to deck plate and it has a risk to do harm to the traffic pass by on the deck plate. So, development of effective retrofit method is strongly needed. In this study, fatigue tests, and damage investigation were conducted to evaluate the fatigue cracking behavior in the welded joint and to verify the effect of proposed retrofitting method.
ISSN:1880-9928
1884-0329
DOI:10.11273/jssc.22.85_85