JPS5833658A - Joint of pipe body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint for a pipe body, and particularly to a joint for a pipe body that is a structural member of a frame of a steel frame building.

Conventionally, joints for various types of steel pipe materials for building structures have been made by using the form of the steel pipe material as it is without making any changes to the basic shape of the steel pipe material, by welding a flange plate to the end of the steel pipe material, and by welding a flange plate to the end of the steel pipe material. Since the structure is reinforced by welding, it is necessary to make the flange plate with a large diameter (l + 2・l) due to considerations for practical loads, etc., while the joint between the pipe end and the flange plate = 1・is welded. L with high accuracy requirements
In order to carry out this group welding, it was necessary to grind the edge of the steel pipe material into an edge shape and prepare a bevel.

Therefore, the present invention involves crushing the end of a steel pipe material, processing it into a flat beak shape having a joining edge located approximately at the diameter of the steel pipe, and joining the flat beak-shaped end. A groove extending in the direction perpendicular to the joining edge and suitable for fixing the rib plate by one inch is provided in the substantially central end edge, and the rib plate is inserted into the groove and fixed. We provide a joint structure for a pipe body in which the fixed side of the flange play 1 is welded to the rear end edge of the flange play 1 and the joint edge of the two-way steel pipe material, and the conventional joint structure with two series is provided. The goal is to eliminate the defects in 1].

Referring to the drawings, the conventional pipe joint shown in FIG.
The edge 5 of the pipe 1 is ground into an edge shape and beveled, and the fixed side of the flange plate 2, which has a fastening hole 4 provided around it, is welded to the edge 5 in an L-shaped group. The pipe material 1 and the flange plate 2 are joined at the four surrounding corners, and approximately triangular glue plates 3 are joined and reinforced by fillet welding, and bolts etc. that engage with the fastening holes 4 are tightened (j1, (
The joint of the present invention shown in FIGS. 2 and 3 crushes or crushes the end 18 of the pipe material 11 to form a flat beak. A joint edge 1 that extends approximately on the diameter of the pipe material by processing it into a shape and bending and joining it from the top and bottom directions of the pipe material end edge.
5 is molded. A cut groove 16, which is a groove in a direction perpendicular to the joint edge 15 and extends in the axial direction of the tube material, is provided approximately at the center of the joint edge 15, and a rib plate 17 is inserted into the cut groove 16. , the lip play 1, 17 is joined to the pipe material 11 by fillet welding. The rear end edge 19 of the repair plate 17 and the joining end edge 15 of the pipe material l are arranged in alignment in the same plane, and the fixed side of the flange plate 12 having the fastening holes 14 provided around the rear end edge 19 and the joining edge 15 by fillet welding.

In the tube body joint of the invention, the joint end edge 15 formed by crushing the end of the pipe material and the rear end edge 19 of the rib plate intersect in a cross shape by the engagement of the l;Tl indentation groove 16, and the joint end The flange plate is welded in contact with the cross-shaped edge consisting of the edge 15 and the rear edge 19, and the multiple reinforcing reinforcements 1 in conventional joints are omitted, and the dimensions of the flange plate itself are also improved. It can be implemented as a small-diameter joint, and the overall size of the joint group has been reduced.Group welding, which requires high welding accuracy, is not used, and there is no need for beveling the pipe end, so the manufacturing process can be done using general processing. It can be easily carried out through simple steps and has excellent technical effects.

[Brief explanation of drawings]

Figure 1 (a) is a side view of a conventional pipe joint, Figure 1 (b)
is an end view of a conventional pipe joint, FIG. 2(a) is a side view of an embodiment of the present invention, and FIG. 2(b) is an end view of the above embodiment.
FIG. 2(c) is a two-sided view of the embodiment described above, and FIG. 3 is a perspective view of the embodiment described above. [Explanation of symbols] 1...Pipe material 2...Flange play 1.
3... Rib plate 4... Fastening hole 5... Edge 11... Tube material 12... Flange plate 15... Joint edge 16... Cut groove 17.
... Rib plate 19 ... Trailing edge patent applicant
Mitsui Construction Co., Ltd. Fig. 1 ((1) S Fig. 2 (G) ld I/ (b) S (b)

Claims (1)

[Claims] The flat beak-shaped end formed by crushing the end of the pipe is provided with a cut groove extending in the axial direction of the pipe, intersecting the joint edge of the beak-shaped end, and a rib is provided in the cut groove. A joint for a pipe body, characterized in that a plate is fitted and fixed, and a flange plate 1 and a fixed side are joined to the rear end edge of the rib plate and the joint end edge.