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Analytical Study on the Development of High-Performance Orthotropic Steel Deck considered the Fatigue Behaviors of Structural Details  

Kyung, Kab Soo (한국해양대학교 건설 환경공학부)
Shin, Dong Ho (GK 시공사업단)
Kim, Kyo Hun (신성엔지니어링)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.4, 2006 , pp. 417-426 More about this Journal
Abstract
Various fatigue damages have been reported in orthotropic steel deck structures put upon girders. These damages are caused by complex behaviors of the deck, which is directly subjected to vehicle loads. To estimate the causes of fatigue cracks at the welded connected parts of the trough rib and the flor beam, and the trough rib and the deck plate, in orthotropic steel deck structures, FE analyses were first, performed in this study. Parameter studies were carried out to suggest effective structural details that consider fatigue, in which the main parameters are the thickness of the deck plate, the shape of the connection of the trough rib and the flor beam such as the slit form, and the welding length. This study suggests that the effective structural details improved the fatigue strength and discusses.
Keywords
Orthotropic steel deck bridge; Longitudinal rib; Flor beam, Deck plate thickness; Slit radius; Conected length of florbeam;
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