A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To ensure sound welding by widening the spread of an initial layer welded part and securing a sufficient manipulation range for a welding torch without using a backing metal for butt welding.SOLUTION: In order to carry out butt welding of an outer surface of an insertion portion 5 and an opening forming surface 2A of a through hole 2 of a web 1A, when the insertion portion 5 is inserted through the through hole 2 and one side 6A of a flange portion 6 is brought into contact with a peripheral edge of the through hole 2, a degassing space S1 is formed for degassing shield gas of initial layer welding through a minute gap between the web 1A and the flange portion 6, which are in contact with each other, between an insertion base end portion 5A of the insertion portion 5 and the opening forming surface 2A. In addition, a cross-sectional shape of an outer shape of an insertion intermediate portion 5B communicated with the insertion base end portion 5A is a curved line from a groove bottom SS, and a cross-sectional shape of an outer shape of an insertion tip portion 5C communicated with the insertion intermediate portion 5B is a straight line. A J-shaped groove S2 is formed between the insertion intermediate portion 5B and the insertion tip portion 5C of the insertion portion 5 and the opening forming surface 2A of the through hole 2.SELECTED DRAWING: Figure 3
【課題】突き合わせ溶接の際に裏当て金を用いる必要もなく、初層溶接部の広がりを広くして溶接トーチの十分な運棒範囲を確保して健全な溶接を行うこと。【解決手段】挿入部５の外側面とウェブ１Ａの貫通孔２の開口形成面２Ａとを突合せ溶接するために、貫通孔２に挿入部５を挿通させて、フランジ部６の一方の側面６Ａを貫通孔２の周縁部に当接させた際に、挿入部５の挿入基端部５Ａと開口形成面２Ａとの間に互いに当接しているウェブ１Ａとフランジ部６との微小のすき間を介して初層溶接のシールドガスを抜くためのガス抜き用の空間Ｓ１を形成し、且つ挿入基端部５Ａに連通する挿入中間部５Ｂの外形の断面形状をその開先底ＳＳから曲線とすると共に挿入中間部５Ｂに連通する挿入先端部５Ｃの外形の断面形状を直線として、挿入部５の挿入中間部５Ｂ及び挿入先端部５Ｃと貫通孔２の開口形成面２Ａとの間にＪ形開先Ｓ２を形成した。【選択図】図３
To ensure sound welding by widening the spread of an initial layer welded part and securing a sufficient manipulation range for a welding torch without using a backing metal for butt welding.SOLUTION: In order to carry out butt welding of an outer surface of an insertion portion 5 and an opening forming surface 2A of a through hole 2 of a web 1A, when the insertion portion 5 is inserted through the through hole 2 and one side 6A of a flange portion 6 is brought into contact with a peripheral edge of the through hole 2, a degassing space S1 is formed for degassing shield gas of initial layer welding through a minute gap between the web 1A and the flange portion 6, which are in contact with each other, between an insertion base end portion 5A of the insertion portion 5 and the opening forming surface 2A. In addition, a cross-sectional shape of an outer shape of an insertion intermediate portion 5B communicated with the insertion base end portion 5A is a curved line from a groove bottom SS, and a cross-sectional shape of an outer shape of an insertion tip portion 5C communicated with the insertion intermediate portion 5B is a straight line. A J-shaped groove S2 is formed between the insertion intermediate portion 5B and the insertion tip portion 5C of the insertion portion 5 and the opening forming surface 2A of the through hole 2.SELECTED DRAWING: Figure 3
【課題】突き合わせ溶接の際に裏当て金を用いる必要もなく、初層溶接部の広がりを広くして溶接トーチの十分な運棒範囲を確保して健全な溶接を行うこと。【解決手段】挿入部５の外側面とウェブ１Ａの貫通孔２の開口形成面２Ａとを突合せ溶接するために、貫通孔２に挿入部５を挿通させて、フランジ部６の一方の側面６Ａを貫通孔２の周縁部に当接させた際に、挿入部５の挿入基端部５Ａと開口形成面２Ａとの間に互いに当接しているウェブ１Ａとフランジ部６との微小のすき間を介して初層溶接のシールドガスを抜くためのガス抜き用の空間Ｓ１を形成し、且つ挿入基端部５Ａに連通する挿入中間部５Ｂの外形の断面形状をその開先底ＳＳから曲線とすると共に挿入中間部５Ｂに連通する挿入先端部５Ｃの外形の断面形状を直線として、挿入部５の挿入中間部５Ｂ及び挿入先端部５Ｃと貫通孔２の開口形成面２Ａとの間にＪ形開先Ｓ２を形成した。【選択図】図３
BEAM REINFORCING MEMBER
梁補強部材
ISHIHARA MASAMI (author)
2019-05-09
Patent
Electronic Resource
Japanese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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