JP2978633B2 - Vertical pipe connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical pipe connecting device used in a frame structure of a building, a pier in a port, an offshore structure, a structural device for oil drilling, and the like.

[0002]

2. Description of the Related Art Conventionally, as a connecting device for a vertical pipe, FIG.
As shown in the figure, the lower half of the joint outer cylinder 10 having an inner diameter slightly larger than the outer diameter of the lower vertical pipe 1 is arranged so as to surround the upper end of the lower vertical pipe 1 and the joint outer cylinder 10 and the lower part. In a state where an annular gap is formed between the outer pipe 10 and the vertical pipe 1, the lower end of the outer pipe 10 is fixed to the lower pipe 1 by welding, and the lower end of the upper pipe 7 is connected to the outer pipe 10. And placed on the upper end surface of the lower vertical pipe 1, and then the solidified filler 11 is filled in the annular gap between the joint outer cylinder 10 and the lower vertical pipe 1 and the upper vertical pipe 7. Devices are known.

[0003]

In the case of the above-mentioned conventional vertical pipe connecting device, the lower vertical pipe 1 and the upper vertical pipe 7 may be connected to each other due to construction errors and manufacturing errors of the lower vertical pipe 1 and the upper vertical pipe 7. If there is a large misalignment (deviation) between the upper vertical pipe 7
May not be inserted into the joint outer cylinder 10 in some cases. Also, even if there is a large difference between the lower vertical pipe 1 and the upper vertical pipe 7,
When the diameter of the joint outer tube 10 is increased so that the upper vertical tube 7 can be inserted into the joint outer tube 10 without any trouble, when a large misalignment occurs between the lower vertical tube 1 and the upper vertical tube 7, A gap is formed between the upper end of the lower vertical pipe 1 and the lower end of the upper vertical pipe 7, so that the solidifying filler 11 is injected and filled between the joint outer cylinder 10 and the lower vertical pipe 1 and the upper vertical pipe 7. In this case, the solidifying filler 11 leaks into the lower vertical pipe 1 from between the lower vertical pipe 1 and the upper vertical pipe 7, so that the solidifying filler 11 is provided between the joint outer tube 10 and the upper vertical pipe 7. 11 cannot be filled.

[0004]

In order to advantageously solve the above-mentioned problem, in the vertical pipe connecting device of the present invention, an inner cylinder having a smaller diameter than the lower vertical pipe 1 is provided on the upper end surface of the lower vertical pipe 1. The outer flange 3 of the support member 4 composed of the outer flange 2 fixed to the lower end of the inner cylinder 2 and the outer flange 3 is placed under the joint outer cylinder 5 having a diameter larger than that of the lower vertical pipe 1. A half part is arranged so as to surround an upper part of the lower vertical pipe 1, and a sealing material 6 is provided between a lower part of the joint outer tube 5 and the lower vertical pipe 1, and an upper vertical pipe having the same diameter as the lower vertical pipe 1. 7 is placed between the inner cylinder 2 and the joint outer cylinder 5 and placed on the outward flange 3, and the upper end of the joint outer cylinder 5 and the lower vertical pipe 1 and the inner cylinder 2 are connected to each other. A room temperature curable material 8 is filled between the lower end of the upper vertical tube 7 and the lower end. Further, in order to arrange the joint outer tube 5 concentrically with respect to the lower vertical tube 1, a plurality of spacers 9 that are engaged with the upper outer surface of the lower vertical tube 1 are fixed around the lower portion inside the joint outer tube 5.

[0005]

1 to 10 show an embodiment of the present invention. First, as shown in FIGS. 1 and 2, the lower vertical pipe 1 made of a steel pipe having a circular cross section is provided on the outer surface on the upper end side.
A plurality of steel support members 12 are arranged at intervals in the circumferential direction of the vertical pipe and fixed by welding.

Next, as shown in FIGS. 3 and 4, a steel inner cylinder 2 having a circular cross section smaller in diameter than the lower vertical pipe 1, and a steel outward flange fixed to the lower end of the inner cylinder 2 by welding. The outward flange 3 of the bearing member 4 comprising:
Is mounted on the upper end surface of the lower vertical pipe 1 and fixed by welding. The outer diameter of the outward flange 3 is set substantially equal to the outer diameter of the lower vertical pipe 1.

Next, as shown in FIGS. 5 and 6, a rubber annular seal member 6 is fixed to the inner periphery of the lower end of a steel joint outer cylinder 5 having a circular cross section having a larger diameter than the lower vertical pipe 1. The lower half of the joint outer cylinder 13 with the sealing material is arranged so as to surround the upper part of the lower vertical pipe 1, the joint outer cylinder 5 is arranged concentrically with the lower vertical pipe 1, and the sealing material 6 is The lower end portion of the joint outer cylinder 5 is placed on each support member 12 in a state where the joint outer cylinder 5 is in contact with the entire circumference of the lower vertical pipe 1.

Next, as shown in FIGS. 7 and 8, the lower end of the upper vertical pipe 7 made of a steel pipe having the same diameter as the lower vertical pipe 1 and having a circular cross section is connected to the inner cylinder 2 and the joint outer cylinder 5. 9 and FIG. 10, the upper end of the joint outer tube 5 and the lower end of the lower vertical tube 1 and the lower end of the inner tube 2 and the upper vertical tube 7, as shown in FIGS. 9 and 10. A room-temperature-curable material 8 such as concrete or mortar is injected and filled in between the parts.

As shown in FIG. 11, after constructing a plurality of steel pipe columns 14 having the above-described vertical pipe connecting device, a horizontal member 15 is integrally mounted over the upper portions of the steel pipe columns 14 and fixed. Make up the structure.

In practicing the present invention, a support member 12 for supporting the joint outer cylinder 5 may be fixed to the lower vertical pipe 1 by welding or the like in a factory or a yard, or the lower vertical pipe 1 may be fixed at a construction site. After being erected using a crane or the like and fixed to the foundation, the support member 12 may be fixed to the lower vertical pipe 1 by welding or the like.

The support member 4 is fixed to the lower vertical pipe 1 by welding or the like in a factory or a yard, and the lower vertical pipe 1 to which the support member 4 is attached is erected at a predetermined position on a construction site by a crane or the like. It is.

Further, in a factory or a yard, a sealing member 6 is fixed to a lower inner peripheral surface of the joint outer cylinder 5 by a bolt 16 and a band-shaped pressing member 17. The joint outer cylinder 13 with the sealing material is lifted and conveyed by a crane or the like and placed on the support member 12, and then the upper vertical pipe 7 is lifted and conveyed by a crane or the like so that the outer flange 3 of the support member 4 is After being placed on the upper part, the room temperature curable material 8 is filled between the joint outer cylinder 5 and the upper end of the lower vertical pipe 1 and between the inner cylinder 2 and the lower end of the upper vertical pipe 7.

When it is necessary to exhibit the strength of the vertical pipe connecting device at an early stage, early-strength concrete may be used as the cold-setting material 8. The inner cylinder 2 of the support member 4
Since the opening is provided at the center of the outward flange 3 fixed to the lower end of the vertical pipe, when filling the vertical pipe with concrete, the filling can be performed continuously and vertically at high efficiency. .

FIGS. 12 and 13 show a plurality of joints which engage with the upper outer surface of the lower vertical tube 1 at the lower portion in the joint outer tube 5 in order to arrange the joint outer tube 5 concentrically with respect to the lower vertical tube 1. This shows a state in which the steel plate spacers 9 are arranged at intervals in the circumferential direction of the joint outer cylinder and fixed by welding, but other configurations are the same as those in the above-described embodiment.

[0015]

According to the present invention, the upper end surface of the lower vertical pipe 1 is formed by the inner cylinder 2 having a smaller diameter than the lower vertical pipe 1 and the outward flange 3 fixed to the lower end of the inner cylinder 2. The outward flange 3 of the bearing member 4 is placed, and the lower half of the joint outer cylinder 5 having a larger diameter than the lower vertical pipe 1 is attached to the lower vertical pipe 1.
And a sealing material 6 is provided between the lower part of the joint outer cylinder 5 and the lower vertical pipe 1. The lower end of the upper vertical pipe 7 having the same diameter as the lower vertical pipe 1 is It is disposed between the tube 2 and the joint outer tube 5 and placed on the outward flange 3, and the joint outer tube 5 and the upper end of the lower vertical tube 1, and the inner tube 2 and the upper vertical tube 7
Since the room temperature curable material 8 is filled in between the lower end of
Even if a large misalignment occurs between the lower vertical pipe 1 and the upper vertical pipe 7, it is possible to prevent a gap from being generated between the lower vertical pipe 1 and the upper vertical pipe 7. And lower vertical pipe 1
The space between the inner cylinder 2 of the support member 4 and the lower end of the upper vertical pipe 7 can be completely filled with the cold-curable material 8 over a required length, and the lower vertical pipe 1 and the upper Even if the vertical pipe 7 is misaligned, there is no gap between the upper end face of the lower vertical pipe 1 and the lower end face of the upper vertical pipe 7, so that the joint outer cylinder 5 having a relatively large diameter should be used. Therefore, the lower end of the upper vertical pipe 7 can be easily inserted into the joint outer cylinder 5. Also, by fixing a plurality of spacers 9 that engage with the outer surface of the upper end portion of the lower vertical tube 1 around the lower portion inside the joint outer tube 5, the joint outer tube 5 is surely concentric with the lower vertical tube 1. Can be arranged.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a state in which a support member is fixed to an upper end portion of a lower vertical pipe.

FIG. 2 is a plan view of FIG.

FIG. 3 is a vertical sectional side view showing a state where a bearing member is fixed to an upper end portion of a lower vertical pipe.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a vertical sectional side view showing a state where a joint outer cylinder with a seal material is placed on a support member of a lower vertical pipe.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a vertical sectional side view showing a state in which a lower end portion of an upper vertical pipe is placed on an outward flange of a support member.

FIG. 8 is a sectional view taken along line AA of FIG. 7;

FIG. 9 is a vertical sectional side view showing a state in which a room-temperature-curable material is filled in a vertical pipe connecting portion.

FIG. 10 is a sectional view taken along line BB of FIG. 9;

FIG. 11 is a partially cutaway front view showing a rigid frame structure using a steel pipe column having the vertical pipe connecting device of the present invention.

FIG. 12 is a vertical cross-sectional side view showing a vertical pipe connecting device in which a plurality of spacers are fixed to a lower portion inside the joint outer cylinder in the joint outer cylinder with a seal material.

FIG. 13 is a sectional view taken along line CC of FIG. 12;

FIG. 14 is a vertical sectional side view showing a conventional vertical pipe connecting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower longitudinal pipe 2 Inner cylinder 3 Outer flange 4 Bearing member 5 Joint outer cylinder 6 Sealing material 7 Upper longitudinal pipe 8 Room temperature hardening material 9 Spacer 12 Supporting member 13 Joint outer cylinder with sealing material 14 Steel pipe column 15 Horizontal member 16 Bolt 17 belt-shaped pressing member

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-180165 (JP, A) JP-A-6-200566 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1/58 503 E04C 3/32

Claims (2)

(57) [Claims] 1. An upper end surface of a lower vertical pipe 1
The outward flange 3 of the support member 4 composed of the inner cylinder 2 having a diameter smaller than that of the inner cylinder 2 and the outward flange 3 fixed to the lower end of the inner cylinder 2 is placed, and has a diameter larger than that of the lower vertical pipe 1. The lower half of the joint outer cylinder 5 is arranged so as to surround the upper part of the lower vertical pipe 1, and a sealing material 6 is provided between the lower part of the joint outer cylinder 5 and the lower vertical pipe 1. The lower end of the upper vertical pipe 7 having the same diameter is placed between the inner cylinder 2 and the joint outer cylinder 5 and placed on the outward flange 3, and the joint outer cylinder 5 and the lower vertical pipe 1
Between the upper end of the inner cylinder 2 and the lower end of the upper vertical pipe 7,
A vertical pipe connecting device filled with a room temperature curable material 8. 2. The vertical pipe coupling device according to claim 1, wherein a plurality of spacers engaged with an upper end outer surface of the lower vertical pipe are fixed around a lower portion in the joint outer cylinder.