JP2006037668A - Beam reinforcing fitting - Google Patents

Beam reinforcing fitting Download PDF

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Publication number
JP2006037668A
JP2006037668A JP2004223122A JP2004223122A JP2006037668A JP 2006037668 A JP2006037668 A JP 2006037668A JP 2004223122 A JP2004223122 A JP 2004223122A JP 2004223122 A JP2004223122 A JP 2004223122A JP 2006037668 A JP2006037668 A JP 2006037668A
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beam reinforcing
reinforcing bracket
hole
refractory material
metal fitting
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JP4372635B2 (en
Inventor
Takashi Kitano
隆司 北野
Kenzo Nakano
建蔵 中野
Hideji Oba
秀治 大庭
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Senqcia Corp
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Hitachi Metals Techno Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a beam reinforcing fitting capable of dispensing with a process for spraying a refractory material around a through hole. <P>SOLUTION: A main body 2 of the beam reinforcing fitting 1 has a ring-like shape and has a thin-walled flange part 5 in an outer peripheral part, and a tapered part 3 is provided between the flange part 5 and the main body 2. A through hole 9 is provided in a central part of the beam reinforcing fitting 1, and the refractory material 11 is provided at the inner periphery of the through hole 9. Protruding pieces 13a, 13b, 13c, 13d as positioning marks are provided in the vicinity of outer periphery on an outer side of the flange part 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、梁補強金具に関するものである。   The present invention relates to a beam reinforcing bracket.

Ｈ型鋼やＬ型鋼などは、建築構造物の梁として広く用いられているが、このような梁においては、建築構造物内部に設けられた配管を通すための貫通孔を形成する場合がある。
その際、貫通孔を形成したことによる強度の低下を防ぐために、貫通孔に補強用の金具を取り付けることがある。 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.

図６は梁補強金具５１を取り付けた梁を示す斜視図である。
梁５３の貫通孔５５には梁補強金具５１が取り付けられている。なお同図では、梁補強金具５１は溶接され、溶接部５７によって梁５３に固定されているが、ボルト等を用いて梁補強金具５１が梁５３に締結される場合もある。
梁補強金具５１は貫通孔５９を有し、貫通孔５９内には配管６１等を通すことができる。
このような梁補強金具としては以下のようなものがある。
（特許文献１）。 FIG. 6 is a perspective view showing a beam to which the beam reinforcing bracket 51 is attached.
A beam reinforcing bracket 51 is attached to the through hole 55 of the beam 53. In the figure, the beam reinforcing bracket 51 is welded and fixed to the beam 53 by the welded portion 57, but the beam reinforcing bracket 51 may be fastened to the beam 53 by using a bolt or the like.
The beam reinforcing bracket 51 has a through hole 59, and a pipe 61 and the like can be passed through the through hole 59.
Examples of such beam reinforcing brackets include the following.
(Patent Document 1).

特開２００３-２３２１０５号公報Japanese Patent Laid-Open No. 2003-232105

一方、梁及び梁補強金具は、火災時の耐火性を持たせるために、施工後に表面に耐火材を吹きつける場合がある。
しかしながら、耐火材を吹きつける場合、梁補強金具の貫通孔の周縁部には耐火材が十分に吹きつけられない場合があるため、別途周縁部に耐火材を吹きつける工程を設ける必要があり、工数の増加やコストの増大につながっていた。 On the other hand, in order to provide fire resistance in the event of a fire, the beam and the beam reinforcing bracket may spray a fire-resistant material on the surface after construction.
However, when spraying a refractory material, it may be necessary to provide a step of spraying the refractory material separately to the peripheral portion, because the refractory material may not be sufficiently sprayed to the peripheral portion of the through hole of the beam reinforcing bracket, This has led to an increase in man-hours and costs.

本発明は、このような問題に鑑みてなされたもので、その目的は耐火材を吹きつける工程を別途設ける必要がない梁補強金具を提供することにある。 This invention is made | formed in view of such a problem, The objective is to provide the beam reinforcement metal fitting which does not need to provide the process of spraying a refractory material separately.

前述した目的を達成するために、本発明は、梁に形成された貫通孔に設けられる梁補強金具であって、耐火性を有することを特徴とする梁補強金具である。
前記梁補強金具は、リング形状をしており、少なくとも内周部に耐火材が設けられるか、あるいは前記梁補強金具全体が耐火鋼から形成される。
また、前記梁補強金具は位置決め用印を有してもよい。 In order to achieve the above-described object, the present invention is a beam reinforcing bracket provided in a through-hole formed in a beam, and has a fire resistance.
The beam reinforcing bracket has a ring shape, and a refractory material is provided at least on the inner periphery, or the entire beam reinforcing bracket is formed of refractory steel.
The beam reinforcing bracket may have a positioning mark.

本発明では、梁補強金具の貫通孔の周縁部にあらかじめ耐火材を設けている。あるいは梁補強金具が耐火鋼からなる。さらに、梁補強金具の外周部近傍に位置決め用印を有している。 In the present invention, a refractory material is provided in advance at the peripheral edge of the through hole of the beam reinforcing bracket. Or a beam reinforcement metal fitting consists of fireproof steel. Further, a positioning mark is provided in the vicinity of the outer peripheral portion of the beam reinforcing bracket.

本発明によれば、梁補強金具にあらかじめ耐火性を持たせているため、少なくとも梁補強金具の貫通孔の周縁部には別途耐火材を吹きつける工程が不要となり、作業性及びコストが改善される。
また本発明によれば、梁補強金具に位置決め用印をあらかじめ設けてあるため、取り付けが容易になり、作業性が改善される。 According to the present invention, since the beam reinforcing bracket is previously provided with fire resistance, there is no need to separately spray a refractory material on the peripheral portion of the through hole of the beam reinforcing bracket, thereby improving workability and cost. The
Further, according to the present invention, since the positioning mark is provided in advance on the beam reinforcing metal fitting, the attachment becomes easy and the workability is improved.

以下、図面に基づいて本発明に好適な実施形態を詳細に説明する。図１は、第１の実施形態に係る梁補強金具１を示すものであって、図１（ａ）は梁補強金具１の縦断面図、図１（ｂ）は図１（ａ）のＡ方向矢視図、図１（ｃ）は図１（ａ）のＢ方向矢視図である。   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).

梁補強金具１の本体２はリング状の形状をしており、外周部に薄肉状のフランジ部５を有し、フランジ部５と本体２の間にはテーパ部３が設けられている。また、梁補強金具１の中心部には貫通孔９が設けられ、貫通孔９の内周には耐火材１１が設けられている。また、フランジ部５の外側の外周近傍には位置決め用印としての突出片１３ａ、１３ｂ、１３ｃ、１３ｄが設けられている。
梁補強金具１の材質は例えば圧延鋼材、鋳鋼、鍛鋼などである。
耐火材１１の材質は例えばグラスウール、耐火セラミックスなどである。 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 refractory material 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.
The material of the refractory material 11 is, for example, glass wool or refractory ceramics.

次に、梁補強金具１の取り付け方法について図２及び図３を用いて説明する。図２は梁補強金具１の梁１５への取り付けを示す図であって、図２（ａ）は、梁補強金具１を取り付ける前の梁１５の貫通孔１７付近を示す図、図２（ｂ）は梁補強金具１を梁１５に取り付けた後の梁補強金具１および梁１５を示す図である。また図３は図２（ｂ）のＣ−Ｃ断面図である。   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.

図２（ａ）に示すように、梁１５に設けられた貫通孔１７の外周近傍には位置決め用印としてのけがき線１９ａ、１９ｂ、１９ｃ、１９ｄが設けられている。取り付けの際には、図２（ｂ）に示すように、梁補強金具１の突出片１３ａ、１３ｂ、１３ｃ、１３ｄと貫通孔１７のけがき線１９ａ、１９ｂ、１９ｃ、１９ｄをそれぞれ合わせて取り付ける。   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. .

図３に示すように、梁１５に梁補強金具１を取り付けた後に、溶接を行い、溶接部２１によって梁補強金具１を梁１５に固定する。
その後、梁補強金具１および梁１５に耐火材を吹きつけるが、その際、貫通孔９の内周には耐火材１１があるので、貫通孔９の内周に耐火材を吹きつける必要がない。
そして、貫通孔９に配管等を設置する。 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, but at this time, since the fireproof material 11 is provided on the inner periphery of the through hole 9, it is not necessary to spray the fireproof material on the inner periphery of the through hole 9. .
Then, piping or the like is installed in the through hole 9.

このように、第１の実施形態によれば、梁補強金具１の貫通孔９の内周にあらかじめ耐火材を設けている。従って取り付けの際に貫通孔９の内周に別途耐火材を吹きつける工程が不要になり、作業性及びコストが改善される。
また第１の実施形態によれば、梁補強金具１に位置決め用印としての突出片１３ａ、１３ｂ、１３ｃ、１３ｄをあらかじめ設けてある。従って梁の貫通孔１７の形状の歪等により、梁１５に梁補強金具１を取り付ける際に位置決めが必要になる場合であっても、容易に位置決めを行うことができ、作業性が改善される。 Thus, according to the first embodiment, the refractory material is provided in advance on the inner periphery of the through hole 9 of the beam reinforcing bracket 1. This eliminates the need for a separate step of spraying a refractory material on the inner periphery of the through-hole 9 at the time of attachment, thereby improving workability and cost.
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. .

次に、第２の実施形態について説明する。図４は第２の実施形態に係る梁補強金具２３を示す図であって、図４（ａ）は梁補強金具２３の縦断面図、図４（ｂ）は図４（ａ）のＤ方向矢視図、図４（ｃ）は図４（ａ）のＥ方向矢視図である。   Next, a second embodiment will be described. 4A and 4B are views showing the beam reinforcing bracket 23 according to the second embodiment, in which FIG. 4A is a longitudinal sectional view of the beam reinforcing bracket 23, and FIG. 4B is a direction D in FIG. 4A. An arrow view and FIG.4 (c) are E direction arrow view views of Fig.4 (a).

梁補強金具２３の本体２４はリング状の形状をしており、外周部には薄肉状のフランジ部２７を有し、フランジ部２７と本体２４の間にはテーパ部２５が設けられている。また、梁補強金具２３の中心には貫通孔３１が設けられている。また、フランジ部２７の外側の外周近傍には、位置決め用印としての突出片２９ａ、２９ｂ、２９ｃ、２９ｄが設けられている。 A main body 24 of the beam reinforcing bracket 23 has a ring shape, and has a thin-walled 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. Protruding pieces 29a, 29b, 29c, and 29d as positioning marks are provided in the vicinity of the outer periphery of the flange portion 27.

ここで、梁補強金具２３は耐火鋼からなっており、単体で耐火性を有する。
耐火鋼の材質は、例えば建築構造用耐火鋼材が挙げられる。
梁補強金具２３も、前述した第１の実施形態と同様に溶接等により、梁１５に取り付けられる。
その後、梁１５に耐火材を吹きつけ、貫通孔３１に配管等を設ける。 Here, the beam reinforcing bracket 23 is made of fireproof steel and has fire resistance alone.
Examples of the material of the refractory steel include a refractory steel material for building structures.
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 refractory material is sprayed on the beam 15, and piping or the like is provided in the through hole 31.

このように、第２の実施形態によれば、梁補強金具２３があらかじめ耐火性を有している。従って梁補強金具２３に耐火材を吹きつける工程が不要となり、作業性及びコストが改善される。 Thus, according to 2nd Embodiment, the beam reinforcement metal fitting 23 has fire resistance beforehand. Therefore, the step of spraying a refractory material on the beam reinforcing metal fitting 23 is not necessary, and the workability and cost are improved.

次に、第３の実施形態について説明する。図５は第３の実施形態に係る梁補強金具３１を示す図である。第３の実施形態に係る梁補強金具３１は、第１の実施形態に係る梁補強金具１の突出片１３ａ、１３ｂ、１３ｃ、１３ｄの代わりにけがき線３５ａ、３５ｂ、３５ｃ、３５ｄを設けたものである。なお、けがき線３５ａ、３５ｂ、３５ｃ、３５ｄはフランジ部３３の側面部のみに設けてもよい。   Next, a third embodiment will be described. FIG. 5 is a view showing a beam reinforcing bracket 31 according to the third embodiment. The beam reinforcing bracket 31 according to the third embodiment is provided with marking lines 35a, 35b, 35c, 35d instead of the protruding pieces 13a, 13b, 13c, 13d of the beam reinforcing bracket 1 according to the first embodiment. Is. The marking lines 35 a, 35 b, 35 c, and 35 d may be provided only on the side surface portion of the flange portion 33.

梁補強金具３１のフランジ部３３の外側の外周近傍には、位置決め用印としてのけがき線３５ａ、３５ｂ、３５ｃ、３５ｄが設けられている。   In the vicinity of the outer periphery of the outer side of the flange portion 33 of the beam reinforcing bracket 31, marking lines 35a, 35b, 35c, and 35d are provided as positioning marks.

このように、第３の実施形態によれば、梁補強金具３１に位置決め用印としてのけがき線３５ａ、３５ｂ、３５ｃ、３５ｄをあらかじめ設けてあるため、位置決め用印として、別途突出片等を梁補強金具３１に取り付ける必要がない。なお、位置決め用印は突出片、けがき線などのほか、凹状の溝を設けるようにしてもよい。 As described above, according to the third embodiment, since the marking lines 35a, 35b, 35c, and 35d as the positioning marks are provided in advance on the beam reinforcing bracket 31, a protruding piece or the like is separately provided as the positioning mark. It is not necessary to attach to the metal fitting 31. Note that the positioning mark may be provided with a concave groove in addition to the protruding piece and the marking line.

以上、添付図面を参照しながら、本発明の実施形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。   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.

例えば、第１の実施形態では梁補強金具１を溶接によって梁１５に固定しているが、ボルト等を用いて締結してもよい。   For example, in the first embodiment, the beam reinforcing bracket 1 is fixed to the beam 15 by welding, but may be fastened using a bolt or the like.

第１の実施形態の梁補強金具１を示す図The figure which shows the beam reinforcement metal fitting 1 of 1st Embodiment. 第１の実施形態の梁補強金具１の梁１５への取り付けを示す図The figure which shows the attachment to the beam 15 of the beam reinforcement metal fitting 1 of 1st Embodiment. 第１の実施形態の梁補強金具１の梁１５への取り付けを示す図The figure which shows the attachment to the beam 15 of the beam reinforcement metal fitting 1 of 1st Embodiment. 第２の実施形態の梁補強金具２３を示す図The figure which shows the beam reinforcement metal fitting 23 of 2nd Embodiment. 第３の実施形態の梁補強金具３１を示す図The figure which shows the beam reinforcement metal fitting 31 of 3rd Embodiment. 梁補強金具５１を取り付けた梁５３を示す斜視図The perspective view which shows the beam 53 which attached the beam reinforcement metal fitting 51

符号の説明Explanation of symbols

１…………梁補強金具
２…………本体
３…………テーパ部
５…………フランジ部
９…………貫通孔
１１………耐火材
１３ａ……突出片
１３ｂ……突出片
１３ｃ……突出片
１３ｄ……突出片
１５………梁
１７………貫通孔
１９ａ……けがき線
１９ｂ……けがき線
１９ｃ……けがき線
１９ｄ……けがき線
２１………溶接部
２３………梁補強金具
２４………本体
２５………テーパ部
２７………フランジ部
２９ａ……突出片
３１………貫通孔
３５ａ……けがき線 1 ………… Beam reinforcement bracket 2 ………… Body 3 ………… Tapered part 5 ………… Flange part 9 ………… Through hole 11 ………… Refractory material 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 part 23 ………… Beam reinforcement bracket 24 ………… Main body 25 ………… Tapered part 27 ………… Flange part 29a …… Protruding piece 31 ………… Through hole 35a …… Marking line

Claims (5)

梁に形成された貫通孔に設けられる梁補強金具であって、耐火性を有することを特徴とする梁補強金具。   A beam reinforcing bracket provided in a through-hole formed in a beam and having fire resistance. 前記梁補強金具は、リング形状を有することを特徴とする請求項１記載の梁補強金具。 The beam reinforcing bracket according to claim 1, wherein the beam reinforcing bracket has a ring shape. 前記梁補強金具は、少なくとも内周部に耐火材を設けたことを特徴とする請求項２記載の梁補強金具。   The beam reinforcing bracket according to claim 2, wherein the beam reinforcing bracket is provided with a refractory material at least on an inner peripheral portion thereof. 前記梁補強金具は、耐火鋼からなることを特徴とする請求項２記載の梁補強金具。   The beam reinforcing bracket according to claim 2, wherein the beam reinforcing bracket is made of fireproof steel. 前記梁補強金具は、位置決め用印を有することを特徴とする請求項１記載の梁補強金具。   The beam reinforcing bracket according to claim 1, wherein the beam reinforcing bracket has a positioning mark.
JP2004223122A 2004-07-30 2004-07-30 Piping installation method Expired - Lifetime JP4372635B2 (en)

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JP2021095794A (en) * 2019-12-19 2021-06-24 センクシア株式会社 Fire-resistive covering material, beam reinforcement metal fitting, fire-resistive covering material holding structure, and construction method of fire-resistant structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021095794A (en) * 2019-12-19 2021-06-24 センクシア株式会社 Fire-resistive covering material, beam reinforcement metal fitting, fire-resistive covering material holding structure, and construction method of fire-resistant structure
JP7399703B2 (en) 2019-12-19 2023-12-18 センクシア株式会社 Fireproof sheathing material, beam reinforcement metal fittings, fireproof sheathing retaining structure, and construction method of fireproof structure

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