To provide a steel pipe column base joint method which can achieve stable full penetration welding when obtaining a rib-less welding joint between a steel pipe column and a base plate whose plate thicknesses are largely different from each other.
A groove is formed in the outer surface of the lower end of the steel pipe column 11. A hole 12a having a diameter equal to the inner diameter of the steel pipe column 11 is formed in the base plate 12. The steel pipe column 11 is vertically abutted against the base plate 12 so that the inside surface of the steel pipe column 11 coincides with that of the base plate hole 12a when viewed from the pipe axis direction, and a cylindrical backing material 13 having an outer diameter fittable to the inside surface of the steel pipe column 11, having a circumferential groove 13a formed in the outer surface thereof, and detachable after welding is abutted on the inside surface of the steel pipe column 11 and on the inside surface of the hole 12a so that the circumferential groove 13a strides a boundary between the inside surface of the steel pipe column 11 and the inside surface of the base plate hole 12a. The steel pipe column 11 and the base plate 12 are welded to each other from the outer surface side of the lower end of the steel pipe column 11 so that a penetration bead projects into the circumferential groove 13a, and then the backing material is removed. Full penetration welding can be stably achieved, and can be confirmed by visual observation.
CHIHARA MINORU
ASAO TADAMICHI
| JP2000008494A | 2000-01-11 | |||
| JPH09137546A | 1997-05-27 | |||
| JP2002160056A | 2002-06-04 | |||
| JPH0952172A | 1997-02-25 | |||
| JP2002180542A | 2002-06-26 |
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