Fatigue of a Steel Plate and Concrete Composite Bridge Deck by Moving Loadsby Keiichiro Sonoda, Osaka City Univ, Osaka, Japan,
Toshio Horikawa, Osaka City Univ, Osaka, Japan,
Hiroaki Kitoh, Osaka City Univ, Osaka, Japan,
Abstract: This paper is devoted to reveal fatigue characteristics of a steel plate and concrete composite bridge deck, which is often called the Robinson slabs, subjected to vehicle loads. 16 model composite slabs and 3 model reinforced concrete slabs with the same effective depth as the composite slabs for comparison are tested by a wheel tracking machine to be able to simulate the passage of vehicle loads, while 5 model composite slabs are also tested under a static patch load. Fatigue characteristics of the composite slabs are examined on relationships between fatigue lives and strengths in a low cycle range less than the order of 104 times of wheel load passage, and process of damage up to failure is also discussed, comparing with that of the reinforced concrete slabs.
Subject Headings: Concrete bridges | Composite bridges | Vehicle loads | Steel bridges | Steel plates | Bridge decks | Concrete slabs
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