沖縄の鉄骨構造建築物とその溶接について-1-溶接の問題点と考察(資料)

概要

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In the beginning of steel structure buildings, riveted joint was a normal method, but by the development of high thickness and high strength of the steel, the joint method with high tension bolt had becoming used. Recently, the joint methods with both of high tension bolt and welded joint have been taken. The followings are found to be apparent. 1. Each fabricator's welders, who have welder's license, have much experience. 2. Because each fabricator has very few welding engineers, the instruction for the welding technique is not enough. For example, the control of steel material and welding rods, groove form of joint and the strain of welded products. 3. The inspection of welded parts is dealt by each fabricator. In fact only 10 percents of the parts are inspected. 4. The welding defect, especially undercut, is found in the parts of the welded joint between pillar and beam.
琉球大学理工学部の論文
1976-03-00