JP2936992B2 - Construction method of equipment piping at steel beam penetration and equipment piping fixture at steel beam penetration - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fixture used for fixing a pipe to a steel beam of a steel structure building.

[0002]

2. Description of the Related Art In a steel structure building, when piping of equipment such as a sprinkler is made to pass through a steel beam coated with a fireproof coating, the following construction procedure is used. That is, first, steel columns and steel beams constituting a steel structure building are assembled, and floor concrete is poured. Next, a fireproof coating is applied to the steel column, the steel beam and the like. And in the hole formed in the steel beam,
Provided through the equipment piping. The penetrating equipment pipe is fixed by a fixture.

As shown in FIG. 5, for example, the fixture 23 merely suspends the pipe 1 from above.

[0004]

For this reason, the pipe 1 is not sufficiently fixed by the fixture 23 and tends to be unstable. The pipe 1 that has become unstable has a risk of damaging the refractory coating, for example, at the penetrating portion of the steel beam.

The present invention has been made to solve the above problems, and has as its object to provide a fixture capable of stably fixing a pipe penetrating a steel beam.

[0006]

In order to achieve the above object, the present invention relates to a fixing tool for fixing a pipe formed by penetrating a part of a pipe into a hole formed in a steel beam. A pair of semicircular members that hold the pipe from the left and right, and a pair of bolts that tighten upper and lower ends of the pair of semicircular members,
A pair of rod-like members having a plate-like end portion that is sandwiched between the upper end or lower end and penetrated by the bolt, an adjusting tool provided on the rod-like member to adjust the length of the rod-like member, A clamper provided at an end of the member to clamp on a flange above or below the steel beam.

[0007]

The pipe is fixed to the upper and lower flanges of the steel beam by a pair of rod-shaped members, and is sufficiently stable.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The piping work performed in this embodiment is for equipment piping such as a sprinkler.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a steel beam having a through hole formed in advance.
Insert a part of the equipment piping, in this state, the equipment piping,
Insert a pair of semicircular members into a ring-shaped part that is
The upper and lower ends of the pair of semicircular members are
With adjustable adjusters that extend downward and extend downward
After attaching the lower pair of rod members, the upper and lower pair of rod members
Clamp the end of the member to the flange above or below the steel beam.
And adjust the length with the adjustment tool.
Go and apply tension from above and below the equipment piping
Fixing the steel pipe after fixing the equipment piping
Performing a refractory coating, and the facility piping penetrating the hole
Connecting another part of the plumbing to a part of the
I made it. Further, the present invention provides a device to be inserted into a steel beam penetration portion.
A pair of semi-circular members that hold the
A ring-shaped part having a pair of semicircular members
The equipment pipe is inserted into the upper end of the semicircular member.
And connected to the lower end respectively to extend upward and downward.
Providing a pair of upper and lower rod-shaped members
Attach an adjustment tool to adjust the length, and
A clamper is provided at the end of the rod-shaped member, and this clamper is
While clamping on the upper and lower flanges of the steel beam,
Adjust the length of the rod-shaped member with the adjustment tool, and
The service pipe was fixed from above and below.

[0010] A part 15 of the pipe is fixed by a fixture 23. FIG. 2 shows a perspective view of the fixing device 23. At the center of the fixture 23, a pair of semicircular members 25 for holding a part 15 of the pipe from the left and right are provided. The semicircular member 25 has flange portions 27 at upper and lower ends and a bolt hole. In addition, along the outer periphery of the semicircle,
8 are formed to increase the overall strength. Flange part 2
Reference numeral 7 denotes a pair of semicircular members 25, and bolts 29 are inserted through bolt holes and fastened by nuts. A plate-like end 33 of the rod 31 is sandwiched between the fitted flanges 27. A bolt hole is also formed in this plate-shaped end 33, and the bolt 29 is penetrated. This bar-shaped member 31 is
Are provided above and below.

In the middle of each rod 31, there is a rod 31.
There is provided an adjustment tool 35 for adjusting the length. The adjusting tool 35 is, for example, a long hexagon nut in the present embodiment. The internal female screw is divided at the center, and the divided upper female screw and lower female screw are reverse screws. The male screw 37 of the bar-shaped member 31 is also a reverse screw so as to be screwed into the female screw. That is, the rod-shaped member 31 is
For example, in the upper part of FIG. 2, if the male screw 37 of the lower rod 31A is a right-hand screw, the male screw 37 of the upper rod 31B is a left-hand screw. Of course, the two female screws corresponding to these male screws 37 are also right-handed screws and left-handed screws, respectively.
In this way, when the hexagon nut as the adjusting tool 35 is rotated in one direction with respect to the rod 31, the upper and lower male screws 37 screwed into the hexagon nut are drawn toward the inside of the hexagon nut. Or pushed out. In this way, the length of the rod 31 can be adjusted.

At the end of the rod-shaped member 31, a clamper 39 is provided.
Is provided. As shown in FIG. 3, the clamper 39 has a U-shaped cross section so that it can be clamped to the flange 41 above or below the steel beam 5. A nut 43 is fixed to the upper surface (FIG. 3) or the lower surface of the U-shaped cross section by welding or the like. An external thread at the end of the rod-shaped member 31 is screwed into the nut 43.

In this manner, the length of the rod-shaped member 31 can be adjusted by the fixture 23, and the vertical position of the pipe can be accurately determined. In addition, since the fixture 23 is fixed by pulling the pipe in the vertical direction, a firm fixation is performed.

After fixing a part 15 of the pipe using such a fixture 23 (FIGS. 2 and 3), a fireproof covering work is performed. This refractory covering work can be performed simultaneously on a number of steel beams 5 after penetrating and fixing a part 15 of the pipe. In this refractory coating work, rock wool is sprayed on a steel beam or a steel column in the same manner as in the prior art.
To form In this embodiment, this spraying is performed only on the steel beam 5 and the steel column, and a part 15
And is not performed on the fixture 23. Even if sprayed, keep it to a minimum.

After the refractory coating work has been performed, the protective covers 21 are removed from both ends of the part 15 of the penetrated pipe, and the pipe work is performed simultaneously. This piping work is performed by connecting a part 15 of the already penetrated pipe to another part of the pipe. This connection is made by screwing a female screw of a joint such as a socket with a male screw 19 formed at both ends of the part 15 of the pipe. After the completion of the plumbing work, if the plumbing has already been sufficiently supported by the steel beam 5 by spraying rock wool or the like, the fixture 23 can be removed. Alternatively, the fixture 23 may be left without being removed and used to stably support the pipe.

As described above, according to this embodiment,
Since the fixture 23 fixes the pipe part 15 by pulling it from above and below, stable fixing is performed as compared with the case where the fixture 15 is fixed only above.

Furthermore, the part 15 of the pipe, which is fixed beforehand through the steel beam 5 before the fire-resistant coating work, can be made sufficiently short because both ends are not connected. Piping does not become a hindrance during the covering work, and the work is easily performed. In addition, since the length of the pipe is short, there is no possibility that construction tools will come into contact with the fireproof coating work, and the possibility of damaging the equipment pipe is small.

Further, a protective lid 21 is covered on both ends of the part 15 of the penetrating pipe, so that there is no inconvenience that the sprayed rock wool or the like falls.

Further, since a part 15 of the pipe is penetrated into the steel beam 5 before the construction of the refractory coating, the penetration does not damage the refractory coating 3 and therefore, it is not necessary to repair the damaged portion. Also, since there is no damage, the reliability of the refractory coating 3 increases.

Further, the piping work performed after the fire-resistant coating work is not troublesome for repairing the fire-resistant coating 3 and the like, so that the work can be quickly performed in parallel with the outer wall work and the like. Therefore, the construction can be shortened.

In the above embodiment, the clamper 39 is provided on the rod 31 by screwing the male screws at both ends of the rod 31 to the nut 43 fixed to the clamper 39. In another embodiment, for example, as shown in FIG. 4, it may be provided in a state of being tightened by two nuts 47, 49. That is, with respect to the U-shaped cross section of the clamper, an extended portion 51 is provided toward the direction in which the U-shaped cross section is closed, and the rod-shaped member 31 passing through the bolt hole 53 formed in the extended portion 51 is provided. A pair of nuts 47 and 49 are placed on the male screw from above and below the extension 51.
Is provided. The extension portion 51 is tightened by these nuts 47, 49, so that the bar 31 is securely attached to the clamper 39. By doing so, the part 15 of the pipe is firmly fixed to the steel beam 5.

In the above embodiment, the adjusting tool 35 is used.
Is provided in the middle of the rod 31, but may be provided at the end of the rod 31 in other embodiments. That is, for example, the nut 4 provided on the clamper 39
3 (FIGS. 1 and 3) can be made longer, and can also serve as an adjusting tool.

[0023]

As described above, according to the equipment pipe fixture of the steel beam penetration part of the present invention, the pipe penetrating the hole of the steel beam is pulled up and down with respect to the upper and lower flanges of the steel beam. The fixing is performed as described above, so that a firm fixing is performed. In addition, when the steel beam is provided with a fire-resistant coating, it is possible to eliminate the possibility that the unstable pipe may damage the fire-resistant coating at the penetration portion.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

FIG. 2 is a perspective view as viewed from a direction II in FIG.

FIG. 3 is an enlarged view of a part III in FIG. 1;

FIG. 4 is a diagram showing a modification of FIG. 3;

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pipe 3 Fireproof coating 5 Steel beam 7 Floor concrete 9 Hole 11 Penetration part 15 Part of piping 17 Sleeve 19 Male screw 21 Protective lid 23 Fixture 25 Semi-circular member 27 Flange part 29 Bolt 31 Bar member 33 Plate End 35 Adjusting tool 37 Male screw 39 Clamper 41 Flange 43, 47, 49 Nut 51 Extension part 53 Bolt hole

Continued on the front page (72) Inventor Sachiko Nishikawa 2-3-28 Higashi Odori, Niigata City, Niigata Pref. Obayashi Gumi Hokuriku Branch (72) Inventor Takao Sakakibara 2-3-28 Higashi Odori, Niigata City, Niigata Pref. In-branch (56) References JP-A-5-180373 (JP, A) JP-A-1-108480 (JP, U) JP-A-1-171988 (JP, U) (58) Fields surveyed (Int. . ⁶ , DB name) F16L 3/14 E04F 17/08

Claims (2)

(57) [Claims] 1. A steel beam is provided in a pre-formed through hole.
Insert a part of the equipment piping, and in this state,
Insert the pair of semicircular members into the ring
The upper and lower ends of the pair of semicircular members
Up and down with adjustable lengths extending downward and downward
After attaching a pair of rod-shaped members, the pair of upper and lower rod-shaped members
Clamp the end of the material to the flange above or below the steel beam
And adjust the length with the adjustment tool.
To secure the equipment piping by applying tension from above and below.
And fixing the equipment piping to the steel beam after fixing.
Performing a fire coating, and connecting the equipment piping through the hole.
Connecting part of the pipe to another part of the steel beam
How to install equipment piping at the penetration. 2. The equipment pipe inserted into the steel beam penetration is left
It has a pair of semicircular members that respectively hold from the right,
The above-mentioned equipment is attached to a ring-shaped portion formed by joining a pair of semicircular members.
Piping is inserted and the upper and lower ends of the semicircular member
Up and down which are connected to and extend upward and downward respectively
A pair of bar members is provided, and the length of these bar members is
Attach an adjustment tool to adjust, and
Install a clamper at the end, and place this clamper on the steel beam.
And clamp the rod-like member
Adjust the length with the adjuster and move the equipment piping up.
Of steel beam penetrations fixed from the side and below
Piping fixture.