| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for further improving the fatigue performance of a joining structure welding a stiffening rib extending in the main stress direction of a metal structural member, in T-shape to the surface of the metal structural member. SOLUTION: This joining structure is formed to enhance fatigue strength around the upper end part of the stiffening rib, which was an obstacle in conventional fatigue performance, by welding the stiffening rib 3 extending in the main stress direction along the surface of the metal structural member 1, in T-shape to the surface of the metal structural member 1 and bending the end part 4 of the stiffening rib 3 in an escape direction from the main stress direction of the metal structural member 1. A weld part 5 between a base plate 2 or a joining flange and the stiffening rib 3 is bevel-welded to enhance the fatigue strength of a bottom part of the stiffening rib 3 which is an obstacle in fatigue performance, to thereby improve the fatigue performance of the whole joint structure. COPYRIGHT: (C)2004,JPO&NCIPI
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