JP4372636B2 - Piping structure - Google Patents

Description

  The present invention relates to a beam reinforcing bracket.

H-shaped steel, L-shaped steel, and the like are widely used as beams for building structures, but in such beams, there are cases in which through holes for passing piping provided inside the building structure are formed.
At this time, in order to prevent a decrease in strength due to the formation of the through hole, a reinforcing metal fitting may be attached to the through hole.

FIG. 11 is a perspective view showing a beam 89 to which a beam reinforcing bracket 87 is attached.
A beam reinforcing metal fitting 87 is attached to the through hole 91 of the beam 89. In the figure, the beam reinforcing metal fitting 87 is welded and fixed to the beam 89 by the welded portion 93, but the beam reinforcing metal fitting 87 may be fastened to the beam 89 fastening by using a bolt or the like.
The beam reinforcing bracket 87 has a through hole 95, and a pipe 97 and the like can be passed through the through hole 95.
Examples of such beam reinforcing brackets include the following.
(Patent Document 1).

Japanese Patent Laid-Open No. 2003-232105

  However, in the past, a large gradient could not be obtained when the pipe 97 or the like was inserted into the beam 89. Therefore, there was a problem when it was desired to pass the pipe 97 or the like with a gradient relative to the beam 89. The degree of freedom of design was low.

The present invention has been made in view of such problems, and an object of the present invention is to provide a beam reinforcing bracket capable of taking a large gradient when a pipe is inserted into a beam.

In order to achieve the above-described object, the present invention provides a through hole provided in a beam, a beam reinforcing bracket provided in the through hole and having a rectangular hole in the center, and the beam reinforcing bracket. A piping structure having a rectangular cross section that is passed through the rectangular hole.

According to the present invention, since it has a taper portion or a curved surface in the axial cross-sectional direction of the inner peripheral portion of the beam reinforcing metal fitting, a large gradient can be taken when inserting the pipe into the beam, and the pipe design The degree of freedom increases.
In addition, the shape of the inner and outer peripheries of the beam reinforcement brackets is different, and the gap between the inner perimeter and the piping is small even when pipes of various shapes are passed through. And cost is improved.

In addition, since the beam reinforcement brackets are pre-fired, there is no need to spray a separate refractory material during installation, which improves workability and cost, and positioning marks are provided on the beam reinforcement brackets in advance. Therefore, attachment becomes easy and workability is improved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings. FIG. 1 shows a beam reinforcing bracket 1 according to the first embodiment. FIG. 1 (a) is a longitudinal sectional view of the beam reinforcing bracket 1, and FIG. 1 (b) is A in FIG. 1 (a). A direction view, FIG.1 (c) is a B direction arrow view of Fig.1 (a).

The main body 2 of the beam reinforcing metal fitting 1 has a ring shape, has a thin flange portion 5 on the outer peripheral portion, and a tapered portion 3 is provided between the flange portion 5 and the main body 2. A through hole 9 is provided at the center of the beam reinforcing bracket 1, and a tapered portion 11 is provided at the inner periphery of the through hole 9. Protruding pieces 13 a, 13 b, 13 c, and 13 d are provided as positioning marks near the outer periphery of the flange portion 5.
The material of the beam reinforcing bracket 1 is, for example, rolled steel, cast steel, forged steel, or the like.

  Next, a method for attaching the beam reinforcing bracket 1 will be described with reference to FIGS. FIG. 2 is a view showing the attachment of the beam reinforcing bracket 1 to the beam 15, and FIG. 2A is a view showing the vicinity of the through hole 17 of the beam 15 before the beam reinforcing bracket 1 is attached, FIG. ) Is a view showing the beam reinforcing bracket 1 and the beam 15 after the beam reinforcing bracket 1 is attached to the beam 15. FIG. 3 is a cross-sectional view taken along the line CC of FIG.

  As shown in FIG. 2A, marking lines 19a, 19b, 19c, and 19d are provided as positioning marks near the outer periphery of the through hole 17 provided in the beam 15. At the time of attachment, as shown in FIG. 2 (b), the protruding pieces 13a, 13b, 13c, 13d of the beam reinforcing bracket 1 and the marking lines 19a, 19b, 19c, 19d of the through holes 17 are attached together. .

  As shown in FIG. 3, after the beam reinforcing bracket 1 is attached to the beam 15, welding is performed, and the beam reinforcing bracket 1 is fixed to the beam 15 by the welded portion 21. Thereafter, a fireproof material is sprayed on the beam reinforcing bracket 1 and the beam 15 as necessary, and piping or the like is installed in the through hole 9.

  FIG. 4 is a longitudinal sectional view of the vicinity of the through hole 9 of the beam reinforcing bracket 1 in the first embodiment. Since the tapered portion 11 is provided on the inner periphery of the through hole 9 of the beam reinforcing bracket 1, the pipe 22 can be passed through the through hole 9 with a large gradient with respect to the beam reinforcing bracket 1 and the beam 15.

Thus, according to 1st Embodiment, the taper part 11 is provided in the inner periphery of the through-hole 9 of the beam reinforcement metal fitting 1. As shown in FIG. Accordingly, since the pipe 22 can be passed through the through hole 9 with a large gradient with respect to the beam 15, the degree of freedom in pipe design can be increased.
Moreover, according to 1st Embodiment, the protrusion pieces 13a, 13b, 13c, and 13d as a positioning mark are provided in the beam reinforcement metal fitting 1 beforehand. Therefore, even when positioning is necessary when attaching the beam reinforcing bracket 1 to the beam 15 due to distortion of the shape of the through-hole 17 of the beam, the positioning can be easily performed and workability is improved. .

  Next, a second embodiment will be described. 5A and 5B are views showing the beam reinforcing bracket 23 according to the second embodiment, in which FIG. 5A is a longitudinal sectional view of the beam reinforcing bracket 23, and FIG. 5B is a direction D in FIG. 5A. An arrow view and FIG.5 (c) are E direction arrow view views of Fig.5 (a).

In the beam reinforcing bracket 23 according to the second embodiment, the tapered portion 11 of the beam reinforcing bracket 1 according to the first embodiment has a curved surface 32.
The main body 24 of the beam reinforcing bracket 23 has a ring shape, has a thin flange portion 27 on the outer peripheral portion, and a tapered portion 25 is provided between the flange portion 27 and the main body 24. A through hole 31 is provided at the center of the beam reinforcing bracket 23, and a curved surface 32 is provided on the inner periphery of the through hole 31. The curved surface 32 is a shape having a curved surface as a whole. Protruding pieces 29a, 29b, 29c, and 29d as positioning marks are provided in the vicinity of the outer periphery of the flange portion 27.

The beam reinforcing bracket 23 is also attached to the beam 15 by welding or the like as in the first embodiment described above.
Thereafter, a fireproof material is sprayed on the beam 15 and the beam reinforcing bracket 23 as necessary, and piping or the like is provided in the through hole 31.

FIG. 6A is a longitudinal sectional view of the vicinity of the through hole 31 of the beam reinforcing bracket 23. FIG. 6B is a diagram showing a modification of FIG.
As shown in FIG. 6A, since the curved surface 32 is provided on the inner periphery of the through hole 31 of the beam reinforcing metal fitting 23, the pipe 33 can be passed through the through hole 31 with a large gradient. Further, like the curved surface 32b as shown in FIG. 6B, the entire surface may not be a curved surface but only the end portion may be a curved surface.

Thus, according to the second embodiment, the curved surface 32 is provided on the inner periphery of the through hole 31 of the beam reinforcing bracket 23. Therefore, since the pipe 33 can be passed through the through hole 31 with a large gradient with respect to the beam reinforcing bracket 23 and the beam 15, the degree of freedom in pipe design can be increased.

  Next, a third embodiment will be described. 7A and 7B are views showing a beam reinforcing bracket 35 according to the third embodiment, in which FIG. 7A is a longitudinal sectional view of the beam reinforcing bracket 35, and FIG. 7B is a direction F in FIG. 7A. An arrow view and FIG.7 (c) are G direction arrow view views of Fig.7 (a).

The beam reinforcing bracket 35 according to the third embodiment is provided with a refractory material 45 on the inner peripheral portion of the beam reinforcing bracket 1 according to the second embodiment.
The main body 37 of the beam reinforcing bracket 35 has a ring shape, has a thin flange portion 39 on the outer peripheral portion, and a tapered portion 41 is provided between the flange portion 39 and the main body 37. A through hole 43 is provided at the center of the beam reinforcing bracket 35, and a tapered portion 44 is provided at the inner periphery of the through hole 43. The taper portion 44 is provided with a refractory material 45. Further, projecting pieces 47a, 47b, 47c, 47d as positioning marks are provided in the vicinity of the outer periphery of the flange portion 39.
Examples of the material of the main body 37 of the beam reinforcing bracket 35 include rolled steel, cast steel, and forged steel.
Examples of the material of the refractory material 45 include glass wool and refractory ceramics.

The beam reinforcing bracket 35 is also attached to the beam 15 by welding or the like as in the first embodiment described above.
Thereafter, a fireproof material is sprayed on the beam 15 and the beam reinforcing bracket 35 as necessary, and piping or the like is provided in the through hole 43.

Thus, according to the third embodiment, the refractory material 45 is provided in advance in the tapered portion 44 of the through hole 43 of the beam reinforcing bracket 35. Therefore, a separate step of spraying a refractory material at the time of attachment becomes unnecessary, and workability and cost are improved.
In the third embodiment, the refractory material 45 is provided around the through-hole 43 of the beam reinforcing bracket 35. However, without providing the refractory material 45, the entire beam reinforcing bracket 1 is formed of refractory steel and fire resistant. You may have sex.

Next, a fourth embodiment will be described. 8A and 8B are views showing a beam reinforcing bracket 51 according to the fourth embodiment, in which FIG. 8A is a longitudinal sectional view of the beam reinforcing bracket 51, and FIG. 8B is an H direction of FIG. 8A. An arrow view and FIG.8 (c) are I direction arrow view views of Fig.8 (a).

A main body 53 of the beam reinforcing bracket 51 has a ring shape, and has a thin-walled flange portion 55 on the outer peripheral portion, and a tapered portion 57 is provided between the flange portion 55 and the main body 53. In addition, a rectangular through hole 59 is provided at the center of the beam reinforcing bracket 51, and a tapered portion 60 is provided on the inner periphery of the through hole 59. Further, projecting pieces 61a, 61b, 61c, 61d as positioning marks are provided in the vicinity of the outer periphery of the flange portion 55.

The beam reinforcing bracket 51 is also attached to the beam 15 by welding or the like as in the first embodiment described above.
Thereafter, a fireproof material is sprayed on the beam 15 and the beam reinforcing bracket 51 as necessary, and piping or the like is provided in the through hole 59.

Thus, according to the fourth embodiment, the through hole 59 of the beam reinforcing bracket 51 is rectangular. Therefore, since the gap between the through hole 59 and the pipe is small even when the rectangular pipe is passed through the through hole 59, the process of filling the gap is reduced, and workability and cost are improved.

Next, a fifth embodiment will be described. FIG. 9 is a view showing a beam reinforcing bracket 65 according to the fifth embodiment. FIG. 9A is a longitudinal sectional view of the beam reinforcing bracket 65, and FIG. 9B is a J direction of FIG. 9A. An arrow view and FIG.9 (c) are K direction arrow view views of Fig.9 (a).

A main body 67 of the beam reinforcing bracket 65 has a ring shape, and has a thin-walled flange portion 69 on the outer peripheral portion. A tapered portion 71 is provided between the flange portion 69 and the main body 67. An elliptical through hole 73 is provided at the center of the beam reinforcing metal fitting 65, and a tapered portion 75 is provided at the inner periphery of the through hole 73. Protruding pieces 77a, 77b, 77c, and 77d as positioning marks are provided in the vicinity of the outer periphery of the flange portion 69.

The beam reinforcing metal fitting 65 is also attached to the beam 15 by welding or the like as in the first embodiment described above.
Thereafter, a fireproof material is sprayed on the beam 15 and the beam reinforcing bracket 65 as necessary, and piping or the like is provided in the through hole 73.

As described above, according to the fifth embodiment, the through hole 73 of the beam reinforcing metal fitting 65 is formed into an ellipse. Therefore, even if two cylindrical pipes are arranged side by side through the through-hole 73, the gap between the through-hole 73 and the pipe is small, so that the process of filling the gap is reduced, and workability and cost are improved.

Next, a sixth embodiment will be described. FIG. 10 is a view showing a beam reinforcing bracket 81 according to the sixth embodiment. The beam reinforcing bracket 81 according to the sixth embodiment is provided with marking lines 85a, 85b, 85c, 85d instead of the protruding pieces 13a, 13b, 13c, 13d of the beam reinforcing bracket 1 according to the first embodiment. Is.

In the vicinity of the outer periphery of the flange portion 83 of the beam reinforcing bracket 81, marking lines 85a, 85b, 85c, and 85d are provided as positioning marks. The marking lines 85a, 85b, 85c, and 85d may be provided only on the side surface of the flange portion 83.

As described above, according to the sixth embodiment, the marking lines 85a, 85b, 85c, and 85d as the positioning marks are provided in advance on the beam reinforcing bracket 81. There is no need to attach the bracket 81. Note that the positioning mark may be provided with a concave groove in addition to the protruding piece and the marking line.

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  For example, in the first embodiment, the beam reinforcing bracket 1 is fixed to the beam 15 by welding, but the beam reinforcing bracket 1 may be fastened to the beam 15 using a bolt or the like.

The figure which shows the beam reinforcement metal fitting 1 of 1st Embodiment. The figure which shows the attachment method of the beam reinforcement metal fitting 1 of 1st Embodiment. The figure which shows the attachment method of the beam reinforcement metal fitting 1 of 1st Embodiment. The longitudinal cross-sectional view of the through-hole 9 vicinity of the beam reinforcement metal fitting 1 of 1st Embodiment. The figure which shows the beam reinforcement metal fitting 23 of 2nd Embodiment. The longitudinal cross-sectional view of the through-hole 31 vicinity of the beam reinforcement metal fitting 23 of 2nd Embodiment. The figure which shows the beam reinforcement metal fitting 35 of 3rd Embodiment. The figure which shows the beam reinforcement metal fitting 51 of 4th Embodiment. The figure which shows the beam reinforcement metal fitting 65 of 5th Embodiment. The figure which shows the beam reinforcement metal fitting 81 of 6th Embodiment. The perspective view which shows the beam 89 which attached the beam reinforcement metal fitting 87

Explanation of symbols

1 ………… Beam reinforcement bracket 2 ………… Body 3 ………… Taper part 5 ………… Flange part 9 ………… Through hole 11 ………… Taper part 13a …… Protruding piece 13b …… Protruding Piece 13c …… Projection piece 13d …… Projection piece 15 …… Beam 17 …… Through hole 19a …… Mark line 19c …… Mark line 19d …… Mark line 21 …… Welded portion 23 ………… Beam reinforcement bracket 24 ………… Body 25 ………… Taper portion 27 ………… Flange portion 29a …… Projecting piece 31 ………… Through hole 32 ………… Curved surface 32b …… Curved surface 45 ………… Refractory material 85a ...

Claims (1)

A through hole provided in the beam;
A beam reinforcing bracket provided in the through hole and having a rectangular hole in the center,
A rectangular cross-section pipe passed through the rectangular hole of the beam reinforcing bracket;
A piping structure characterized by comprising:

Images