END TAB FOR WELDING STEEL STRUCTURE

PURPOSE: To improve the strength and durability of a part to be welded by using an end tab so that a part to be welded with uncertainty is positioned outward of a side of a steel beam by a recessed groove in the end tab, and the gas is emitted downward. CONSTITUTION: An abutting plate 6 is fixed to a lower end part of an upper flange part 4a and that of a lower flange part of a wide flange steel beam 4, an end tab 1 is abutted on each side end part of the flange part 4a, and a joined part of each side end part with a folded part 3b of a recessed groove 3 is temporarily welded by the arc welding and fixed thereto. A part of a welding groove part 7 of the upper end part of the flange part 4a is cladded by welding by the arc welding successively and upwardly from its bottom part, cladding by welding is performed on a side surface 5a side of a steel column 5 along an inclined part of the end tab 1 to weld the steel column 5 to the wide flange steel beam 4. Because the tip of the groove part 7 is slightly inside of the folded part 3b of the recessed groove 3, the gas generated during the welding is emitted from a gap 8 between the lower inclined part of the end tab 1 and the abutting plate 6, and no bubbles are present in the welded part.