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Load-Carrying Capacity and Remaining Life of First-Built Composite Girder Bridge in Japan

by Yukio Maeda, Osaka Univ, Suita, Japan,
Shigeyuki Matsui, Osaka Univ, Suita, Japan,



Document Type: Proceeding Paper

Part of: Effects of Damage and Redundancy on Structural Performance

Abstract:

Kanzaki Bridge, Osaka, Japan, was the first steel-concrete composite bridge built in 1953 to carry the Osaka Prefectural Road over Kanzaki River. The bridge was removed in 1978 after 25 years' service. The tests of full-size specimens of girders and materials cut from the removed bridge were carried out. Also, traffic measurements were conducted on a temporary rampway to the new Kanzaki Bridge. Probabilities of failure of the members and the remaining life of the bridge were evaluated on the basis of a probabilistic analysis from the results of the tests and traffic measurements. If the effect of material deterioration is not taken into account, the remaining life of the bridge could be estimated to be about 100 years.

Subject Headings: Girder bridges | Composite bridges | Bridge tests | Material tests | Load bearing capacity | Composite beams | Steel bridges | Japan | Asia

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