全熔接道路橋誉鳩橋の製作および架設について

概要

論文の詳細を見る
After the War a pretty number of welded bridge were built and still many plans are afoot to erect welded bridges in Japan. This trend originated from recognition of the fact that through the development of the design and construction method, welded bridges are in certain cases more economical and reliable than riveted ones. The present report touches upon the manufacture and erection of Hou Kyu Bashi bridge which was completed in March, 1952. It is all-weld highway bridge built on the order placed by the Ministry of Construction, Japanese Government and the work was done under contract by Yokogawa Bridge Works. LTD. The principal design features are : design load, Ist class; type Garber type plate girder; span arrangement, 19.3m-24.6m-24.5m 24.6m-24.6m-19.3m; effective width, 9.0m; main girders, 4 files; total length, 112.8m; effective area, 1016m^2; steel weight, 182,1 t; and unit weight of steel, 179kg/m^2. Joints between main girders or main girders and floor beams were butt-welded without splice plate, Special features of manufacture and erection are as follows : 1) all shop-and field-butt joints were back-chipped by pneumatic chisel or gas gouging method; 2) all reinforcements of butt welds were chipped off and finished by the grinder and 3) total length of the shop welded butt joints was jnspected by the radiograph.
社団法人溶接学会の論文
1952-09-01