A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
WELDED JOINT, WELDED STRUCTURE, CONSTRUCTION MACHINE AND WELDING METHOD
PROBLEM TO BE SOLVED: To provide a welded joint, a welded structure, a construction machine and a welding method capable of suppressing fatigue failure starting from un-welded part between base material and backing metal.SOLUTION: A welded joint includes a first base material 31, a second base material 32 opposed to the first base material 31 by butting bevels 34 to each other and a backing metal 33 attached to the first and second base materials 31, 32 while striding over a root gap 34a of the bevels 34. Therein, the base material 31 is inclined with respect to the base material 32 by setting the bevels 34 as a boundary such that a neutral surface P1 of the base material 31 is separated to the side opposite to the backing metal 33 from a surface P2' containing a neutral surface P2 of the base material 32 as going away from the bevels 34.SELECTED DRAWING: Figure 1
【課題】母材と裏当て金との間の未溶着部を起点とした疲労破壊を抑制することができる溶接継手、溶接構造物、建設機械及び溶接方法を提供する。【解決手段】第１の母材３１と、開先３４を突合せて第１の母材３１に対向させた第２の母材３２と、開先３４のルートギャップ３４ａを跨いで第１及び第２の母材３１，３２に取り付けた裏当て金３３とを備え、開先３４から離れるに連れて母材３２の中立面Ｐ２を含む面Ｐ２’から母材３１の中立面Ｐ１が裏当て金３３と反対側に離れるように、開先３４を境にして母材３２に対して母材３１を傾斜させた溶接継手を提供する。【選択図】 図１
WELDED JOINT, WELDED STRUCTURE, CONSTRUCTION MACHINE AND WELDING METHOD
PROBLEM TO BE SOLVED: To provide a welded joint, a welded structure, a construction machine and a welding method capable of suppressing fatigue failure starting from un-welded part between base material and backing metal.SOLUTION: A welded joint includes a first base material 31, a second base material 32 opposed to the first base material 31 by butting bevels 34 to each other and a backing metal 33 attached to the first and second base materials 31, 32 while striding over a root gap 34a of the bevels 34. Therein, the base material 31 is inclined with respect to the base material 32 by setting the bevels 34 as a boundary such that a neutral surface P1 of the base material 31 is separated to the side opposite to the backing metal 33 from a surface P2' containing a neutral surface P2 of the base material 32 as going away from the bevels 34.SELECTED DRAWING: Figure 1
【課題】母材と裏当て金との間の未溶着部を起点とした疲労破壊を抑制することができる溶接継手、溶接構造物、建設機械及び溶接方法を提供する。【解決手段】第１の母材３１と、開先３４を突合せて第１の母材３１に対向させた第２の母材３２と、開先３４のルートギャップ３４ａを跨いで第１及び第２の母材３１，３２に取り付けた裏当て金３３とを備え、開先３４から離れるに連れて母材３２の中立面Ｐ２を含む面Ｐ２’から母材３１の中立面Ｐ１が裏当て金３３と反対側に離れるように、開先３４を境にして母材３２に対して母材３１を傾斜させた溶接継手を提供する。【選択図】 図１
WELDED JOINT, WELDED STRUCTURE, CONSTRUCTION MACHINE AND WELDING METHOD
溶接継手、溶接構造物、建設機械及び溶接方法
FUJINAGA AKIRA (author) / TAKAHASHI TAKESHI (author)
2017-04-13
Patent
Electronic Resource
Japanese
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