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World's Third Longest Cantilever Bridge

by Ichiro Konishi, (F.ASCE), Prof.; Dept. of Civ. Engrg., Kyoto Univ., Kyoto, Japan,


Serial Information: Civil Engineering—ASCE, 1976, Vol. 46, Issue 2, Pg. 84-86


Document Type: Feature article

Abstract:

This report includes the planning, design and construction procedure of the world's third longest double deck, cantilever bridge, Osaka Port Bridge, which was completed in July, l974, in Osaka City, Japan. The geographical and meteorological characteristics at the site presented difficult foundation problems and design problems against strong earthquakes and winds. Weldable super high strength steels, 114,000 psi (80 kg/mm�) up to 2.95 in. (75 mm) thickness, were newly produced for this bridge. It took only 3.5 hours to lift the 610 ft (186 m) suspended truss span weighing 4200 tons from the sea to a height of 197 ft (60 m).

Subject Headings: Cantilever bridges | Infrastructure construction | Bridge decks | Bridge design | High-strength steel | Foundation design | Cantilevers

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