著者

久我 尚弘 根本 文夫 中山 等 日紫喜 剛啓

出版者

Japan Society of Civil Engineers

雑誌

土木学会論文集 (ISSN:02897806)

巻号頁・発行日

vol.1989, no.403, pp.219-228, 1989-03-20 (Released:2010-08-24)

参考文献数

8

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The Yobuko-Ohashi Bridge, located in Yobuko Town, Saga Prefecture, is a 3-span continuous prestressed concrete cable-stayed road bridge with a center span of 250m, which connects an isolated island, Kabejima Island, to Kyushu. It is the longest-span concrete bridge in Japan. In construction of the superstructure, the girders were constructed by cast-in-place balanced cantilever method using travelers. And the deflection of girders, tensile forces in stay cables and stresses in girders, which are essential for prestressed concrete cable-stayed bridges, were monitored and adjusted rationally and promptly with the help of a new system using microcomputer. This report outlines the system used in this bridge construction project.