WO2015060389A1 - Steel beam refractory covering method and steel beam refractory covering structure - Google Patents

Steel beam refractory covering method and steel beam refractory covering structure Download PDF

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WO2015060389A1
WO2015060389A1 PCT/JP2014/078230 JP2014078230W WO2015060389A1 WO 2015060389 A1 WO2015060389 A1 WO 2015060389A1 JP 2014078230 W JP2014078230 W JP 2014078230W WO 2015060389 A1 WO2015060389 A1 WO 2015060389A1
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Prior art keywords
steel beam
refractory material
fire
sleeve
steel
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PCT/JP2014/078230
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French (fr)
Japanese (ja)
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玄宏 清水
慎平 山脇
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ニチアス株式会社
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Priority to JP2015543908A priority Critical patent/JPWO2015060389A1/en
Publication of WO2015060389A1 publication Critical patent/WO2015060389A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/04—Sealing to form a firebreak device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat

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  • the present invention relates to a fireproof coating technique for a through-hole formed in a steel beam web.
  • a steel structure building is provided with a fireproof coating on the pillars, pillars, and pipe pillars that are the main structures, ensuring the fireproof time performance stipulated in the Building Standards Act. (From Patent Document 1 [Prior Art]).
  • a sheet-shaped or blanket-shaped refractory material 75 is wound around a circular steel plate (spiral duct or the like) 70 in advance to form a steel frame.
  • This is a method of inserting into the through-hole portion 82 formed in the web 81 of the beam 80.
  • the other is formed by a pair of fireproof covering materials 60 and 60 so as to sandwich the web 81 of the steel beam 80 from both sides, as shown in FIGS. 2A, 2B, 2C, and 2D.
  • the conventional techniques described above have the following problems. (1) About the former, in order to wind the sheet-like or blanket-like refractory material 75 around the circular steel plate (spiral duct etc.) 70 beforehand, there exists a subject that the loss at the time of conveyance is high. (2) The latter has a problem that the web 81 of the steel beam 80 is not completely covered (portion 85 in FIG. 2D).
  • the present invention aims to provide a fireproof coating technique for a through-hole portion formed in a steel beam web that can be completely covered with a steel beam web without any trouble in transportation. Is.
  • the present invention is a fire-resistant coating method for a steel beam to a through-hole portion formed in a web of a steel beam, which is a sheet-type or blanket-type fire-proof method having a wire mesh or a metal plate on one side.
  • the material is carried into the building site in a flat plate state, and is formed into a cylindrical shape to form a through sleeve material, which is penetrated through the through hole portion.
  • One surface of the refractory material may be provided with a metal plate, and the metal plate may be provided with a bundling mechanism that binds the metal plates to form a through sleeve material in a cylindrical shape.
  • One surface of the refractory material may be provided with a metal mesh, and the metal mesh may be provided with a binding member or a binding mechanism for binding the metal meshes to form a through sleeve material in a cylindrical shape.
  • the present invention includes a fire-resistant covering structure for steel beams constructed by the above-described fire-resistant covering method for steel beams.
  • the penetration sleeve material may or may not include an “inner core material” for reinforcement.
  • an “inner core material” for reinforcement for reinforcement.
  • the inner core material is provided, for example, when a through hole for a through sleeve material is formed in a fireproof material such as a boxed Makibee (registered trademark), in addition to reinforcement, a fireproof material such as Makibee (registered trademark). Easy to cut wood.
  • the wire mesh provided on one surface of the refractory material is provided with a bundling member or bundling mechanism that binds the metal nets to form a through sleeve material in a cylindrical shape, thereby maintaining the sleeve state. Also have. (6) By providing a metal plate or a wire mesh on one surface of the refractory material, the sleeve state can be maintained against an external impact.
  • FIG. 3A, 3B, 3C, and 3D are explanatory views showing an embodiment of the present invention.
  • a through sleeve material 10 in which a refractory material 11 is wound around an internal core material 19 such as a cylindrical steel plate is passed through a through hole portion 82 formed in a web 81 of a steel beam 80.
  • the web 81 can be completely covered to be inserted into the through-hole portion 82 of the steel beam 80 in a state where the through-sleeve material 10 is in a sleeve shape (FIG. 3D).
  • FIG. 4A, 4B, 4C, and 4D are explanatory views showing an embodiment of the present invention.
  • the penetration sleeve material 10 illustrated in FIG. 3A is brought into a cylindrical shape by carrying a sheet-shaped or blanket-shaped refractory material 11 having a metal plate 12 on one side to a building site in a flat state.
  • the through-sleeve material 10a is formed by wrapping around an inner core material 19 such as a steel plate.
  • the metal plate 12 provided on one surface of the refractory material 11 is provided with a bundling mechanism 15 including a convex portion 13 at one end and a concave portion 14 at the other end, so that the sleeve state by the refractory material 11 is ensured. Since it hold
  • the bundling mechanism for the metal plate 12 is not limited to that shown in FIG.
  • FIG. 5A, FIG. 5B, FIG. 5C, and FIG. 5D are explanatory views showing an embodiment of the present invention.
  • the through sleeve material 10 illustrated in FIG. 3A is a construction site in which a sheet-like or blanket-like refractory material 11 having a wire mesh 16 is provided in a flat state.
  • the penetrating sleeve material 10b is formed by being wound around the inner core material 19 such as a circular steel plate.
  • the wire mesh 16 provided on one surface of the refractory material 11 includes the substantially T-shaped binding member 17, the sleeve state of the refractory material 11 is reliably maintained, so that the refractory material 11 is brought into the construction site in a flat plate state.
  • the through sleeve material 10b can be easily formed on the spot.
  • the binding member of the wire mesh 16 is not limited to that shown in FIGS. 5A, 5B, 5C, and 5D.
  • the wire mesh 16 may be a wire such that the ends of the wire mesh 16 are tied together. Good.
  • a bundling mechanism may be provided at both ends of the wire mesh 16.
  • the cylindrical fireproof covering material 11 constituting the through sleeve material 10 is preferably a blanket fireproof covering material mainly composed of rock wool having fire resistance and heat insulation properties, but is not limited thereto.
  • the internal core material 19 constituting the through sleeve material 10 is preferably a spiral duct or a bent steel plate, but is not limited thereto.
  • the present invention can be widely used as a fire-resistant coating method for steel beams and a fire-resistant coating structure for steel beams.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

In this method for the refractory covering of through-holes formed in the web of a steel beam, a sheet-form or blanket-form refractory material having a metal mesh or metal plate on one surface is carried as a flat plate onto the construction site, where the refractory material is given a cylindrical shape, forming a penetration sleeve which is inserted through the through-hole.

Description

鉄骨梁の耐火被覆工法および鉄骨梁の耐火被覆構造Steel beam fireproof coating method and steel beam fireproof coating structure
　本願発明は、鉄骨梁のウェブに形成された貫通孔部に対する耐火被覆技術に関するものである。 The present invention relates to a fireproof coating technique for a through-hole formed in a steel beam web.
　鉄骨構造建築物は火災時における建築物の倒壊を防ぐために、主要構造物である柱や支柱、あるいは管柱体等に耐火被覆を施し、建築基準法に定められている耐火時間の性能を確保しなければならない（特許文献１［従来の技術］より）。 In order to prevent the collapse of buildings in the event of a fire, a steel structure building is provided with a fireproof coating on the pillars, pillars, and pipe pillars that are the main structures, ensuring the fireproof time performance stipulated in the Building Standards Act. (From Patent Document 1 [Prior Art]).
　そして、鉄骨梁のウェブに形成された貫通孔部に対する鉄骨梁の耐火被覆工法としては、大きく分けて次の２通りのものがある。
　１つは、図１Ａ、図１Ｂ、図１Ｃ、図１Ｄに示すように、円形状になっている鋼板（スパイラルダクト等）７０に、予めシート状またはブランケット状の耐火材７５を巻き付けて、鉄骨梁８０のウェブ８１に形成された貫通孔部８２に挿入する工法である。
　もう１つは、図２Ａ、図２Ｂ、図２Ｃ、図２Ｄに示すように、鉄骨梁８０のウェブ８１を両側から挟み込むように、一対の耐火被覆材６０，６０で形成するものである。 And as a fireproof covering method of a steel beam with respect to the through-hole part formed in the web of a steel beam, there are roughly the following two types.
First, as shown in FIGS. 1A, 1B, 1C, and 1D, a sheet-shaped or blanket-shaped refractory material 75 is wound around a circular steel plate (spiral duct or the like) 70 in advance to form a steel frame. This is a method of inserting into the through-hole portion 82 formed in the web 81 of the beam 80.
The other is formed by a pair of fireproof covering materials 60 and 60 so as to sandwich the web 81 of the steel beam 80 from both sides, as shown in FIGS. 2A, 2B, 2C, and 2D.
　しかし、上記する従来の技術には、以下のような課題を有している。
（１）前者については、円形状になっている鋼板（スパイラルダクト等）７０に、予めシート状またはブランケット状の耐火材７５を巻き付けるために、運搬時のロスが高いという課題がある。
（２）後者については、鉄骨梁８０のウェブ８１が完全には被覆されない（図２Ｄの符号８５の部分）という課題がある。 However, the conventional techniques described above have the following problems.
(1) About the former, in order to wind the sheet-like or blanket-like refractory material 75 around the circular steel plate (spiral duct etc.) 70 beforehand, there exists a subject that the loss at the time of conveyance is high.
(2) The latter has a problem that the web 81 of the steel beam 80 is not completely covered (portion 85 in FIG. 2D).
特開平１１－３０３２４４号公報JP 11-303244 A
　本願発明は、このような課題を解決するために、運搬に支障が無く、鉄骨梁のウェブも完全に被覆できる鉄骨梁のウェブに形成された貫通孔部に対する耐火被覆技術の提供を目的としたものである。 In order to solve such a problem, the present invention aims to provide a fireproof coating technique for a through-hole portion formed in a steel beam web that can be completely covered with a steel beam web without any trouble in transportation. Is.
　上記目的を達成するために、本発明は、鉄骨梁のウェブに形成された貫通孔部に対する鉄骨梁の耐火被覆工法であって、一面に金網または金属板を備えたシート状またはブランケット状の耐火材を平板状態で建築現場に搬入し、それを円筒状にして貫通スリーブ材を形成し、これを貫通孔部に貫通させる。
　前記耐火材の一面には金属板を備え、前記金属板が、円筒状にして貫通スリーブ材を形成するために金属板どうしを結束する結束機構を備えるものとしてもよい。
　前記耐火材の一面には金網を備え、前記金網が、円筒状にして貫通スリーブ材を形成するために金網どうしを結束する結束部材または結束機構を備えるものとしてもよい。
　本発明は、上記の鉄骨梁の耐火被覆工法によって施工された鉄骨梁の耐火被覆構造を含む。 In order to achieve the above object, the present invention is a fire-resistant coating method for a steel beam to a through-hole portion formed in a web of a steel beam, which is a sheet-type or blanket-type fire-proof method having a wire mesh or a metal plate on one side. The material is carried into the building site in a flat plate state, and is formed into a cylindrical shape to form a through sleeve material, which is penetrated through the through hole portion.
One surface of the refractory material may be provided with a metal plate, and the metal plate may be provided with a bundling mechanism that binds the metal plates to form a through sleeve material in a cylindrical shape.
One surface of the refractory material may be provided with a metal mesh, and the metal mesh may be provided with a binding member or a binding mechanism for binding the metal meshes to form a through sleeve material in a cylindrical shape.
The present invention includes a fire-resistant covering structure for steel beams constructed by the above-described fire-resistant covering method for steel beams.
　貫通スリーブ材には、補強用としての「内部芯材」を備えていてもよいし、備えていなくてもよい。なお、内部芯材を備えると、例えば箱張りしたマキベエ（登録商標）などの耐火材に貫通スリーブ材用の貫通孔を形成する場合などに、補強になる他にマキベエ（登録商標）などの耐火材をカットしやすい。 The penetration sleeve material may or may not include an “inner core material” for reinforcement. In addition, when the inner core material is provided, for example, when a through hole for a through sleeve material is formed in a fireproof material such as a boxed Makibee (registered trademark), in addition to reinforcement, a fireproof material such as Makibee (registered trademark). Easy to cut wood.
（１）シート状またはブランケット状の耐火材が平板状態のまま、金網や金属板を設置し、施工現場で容易に曲げスリーブ状にすることができる工法になっている。
（２）このため、平板の状態で建築現場に運搬することができるために、運搬効率が著しく上がる。
（３）また、そのスリーブ状にした状態で鉄骨梁の貫通孔部に挿入するため鉄骨ウェブも被覆することができる。
（４）耐火材の一面に備えた金属板が、円筒状にして貫通スリーブ材を形成するために金属板どうしを結束する結束機構を備えることで、スリーブ状態が保持される特徴も持つ。
（５）同様に、耐火材の一面に備えた金網が、円筒状にして貫通スリーブ材を形成するために金網どうしを結束する結束部材または結束機構を備えることで、スリーブ状態が保持される特徴も持つ。
（６）耐火材の一面に金属板または金網を備えることで、外部からの衝撃に対してスリーブ状態を維持できる。 (1) It is a construction method in which a sheet metal or a blanket-like refractory material remains in a flat state, a wire mesh or a metal plate is installed, and a bending sleeve shape can be easily formed at a construction site.
(2) For this reason, since it can convey to a construction site in the state of a flat plate, conveyance efficiency goes up remarkably.
(3) In addition, the steel web can be covered to be inserted into the through-hole portion of the steel beam in the sleeve shape.
(4) Since the metal plate provided on one surface of the refractory material has a bundling mechanism for bundling the metal plates to form a through sleeve material in a cylindrical shape, the sleeve state is also maintained.
(5) Similarly, the wire mesh provided on one surface of the refractory material is provided with a bundling member or bundling mechanism that binds the metal nets to form a through sleeve material in a cylindrical shape, thereby maintaining the sleeve state. Also have.
(6) By providing a metal plate or a wire mesh on one surface of the refractory material, the sleeve state can be maintained against an external impact.
従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 従来の技術を説明する説明図である。It is explanatory drawing explaining the prior art. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention. 本願発明の一実施形態を示す説明図である。It is explanatory drawing which shows one Embodiment of this invention.
　図３Ａ、図３Ｂ、図３Ｃ、図３Ｄは、本願発明の一実施形態を示す説明図である。図示するように、鉄骨梁８０のウェブ８１に形成された貫通孔部８２へ、円筒状の鋼板等の内部芯材１９に耐火材１１を巻き付けた貫通スリーブ材１０を貫通させる。この時、貫通スリーブ材１０をスリーブ状にした状態で鉄骨梁８０の貫通孔部８２に挿入するためウェブ８１も完全に被覆することができる（図３Ｄ）。 3A, 3B, 3C, and 3D are explanatory views showing an embodiment of the present invention. As shown in the drawing, a through sleeve material 10 in which a refractory material 11 is wound around an internal core material 19 such as a cylindrical steel plate is passed through a through hole portion 82 formed in a web 81 of a steel beam 80. At this time, the web 81 can be completely covered to be inserted into the through-hole portion 82 of the steel beam 80 in a state where the through-sleeve material 10 is in a sleeve shape (FIG. 3D).
　図４Ａ、図４Ｂ、図４Ｃ、図４Ｄは、本願発明の一実施形態を示す説明図である。図３Ａで図示した貫通スリーブ材１０は、図４に図示するように、一面に金属板１２を備えたシート状またはブランケット状の耐火材１１を平板状態で建築現場に搬入し、円筒状になっている鋼板等の内部芯材１９に巻き付けて貫通スリーブ材１０ａを形成するのである。こうすることで、耐火材１１を平板の状態で建築現場に運搬することができるために、運搬効率が著しく上がる。 4A, 4B, 4C, and 4D are explanatory views showing an embodiment of the present invention. As shown in FIG. 4, the penetration sleeve material 10 illustrated in FIG. 3A is brought into a cylindrical shape by carrying a sheet-shaped or blanket-shaped refractory material 11 having a metal plate 12 on one side to a building site in a flat state. The through-sleeve material 10a is formed by wrapping around an inner core material 19 such as a steel plate. By carrying out like this, since the refractory material 11 can be conveyed to a construction site in the state of a flat plate, conveyance efficiency goes up remarkably.
　また、耐火材１１の一面に備えた金属板１２が、一方の端部に凸部１３と他方の端部に凹部１４からなる結束機構１５を備えることで、耐火材１１によるスリーブ状態を確実に保持するので、耐火材１１を平板状態で建築現場に搬入してもその場で容易に貫通スリーブ材１０ａを形成することができる。なお、金属板１２の結束機構は、図４に図示するものに限定されるものではない。 Further, the metal plate 12 provided on one surface of the refractory material 11 is provided with a bundling mechanism 15 including a convex portion 13 at one end and a concave portion 14 at the other end, so that the sleeve state by the refractory material 11 is ensured. Since it hold | maintains, even if it carries in the construction site in the flat fireproof material 11, the penetration sleeve material 10a can be formed easily on the spot. The bundling mechanism for the metal plate 12 is not limited to that shown in FIG.
　同様に、図５Ａ、図５Ｂ、図５Ｃ、図５Ｄは、本願発明の一実施形態を示す説明図である。図３Ａで図示した貫通スリーブ材１０は、図５Ａ、図５Ｂ、図５Ｃ、図５Ｄに図示するように、一面に金網１６を備えたシート状またはブランケット状の耐火材１１を平板状態で建築現場に搬入し、円形状になっている鋼板等の内部芯材１９に巻き付けて貫通スリーブ材１０ｂを形成するのである。こうすることで、耐火材１１を平板の状態で建築現場に運搬することができるために、運搬効率が著しく上がる。 Similarly, FIG. 5A, FIG. 5B, FIG. 5C, and FIG. 5D are explanatory views showing an embodiment of the present invention. As shown in FIGS. 5A, 5B, 5C, and 5D, the through sleeve material 10 illustrated in FIG. 3A is a construction site in which a sheet-like or blanket-like refractory material 11 having a wire mesh 16 is provided in a flat state. The penetrating sleeve material 10b is formed by being wound around the inner core material 19 such as a circular steel plate. By carrying out like this, since the refractory material 11 can be conveyed to a construction site in the state of a flat plate, conveyance efficiency goes up remarkably.
　また、耐火材１１の一面に備えた金網１６が、略Ｔ字形の結束部材１７を備えることで、耐火材１１によるスリーブ状態を確実に保持するので、耐火材１１を平板状態で建築現場に搬入してもその場で容易に貫通スリーブ材１０ｂを形成することができる。なお、金網１６の結束部材は、図５Ａ、図５Ｂ、図５Ｃ、図５Ｄに図示するものに限定されるものではなく、例えば、針金のようなもので、金網１６の端部どうしを結んでもよい。また、金網１６の両端部に結束機構を備えてもよい。 Moreover, since the wire mesh 16 provided on one surface of the refractory material 11 includes the substantially T-shaped binding member 17, the sleeve state of the refractory material 11 is reliably maintained, so that the refractory material 11 is brought into the construction site in a flat plate state. However, the through sleeve material 10b can be easily formed on the spot. Note that the binding member of the wire mesh 16 is not limited to that shown in FIGS. 5A, 5B, 5C, and 5D. For example, the wire mesh 16 may be a wire such that the ends of the wire mesh 16 are tied together. Good. Further, a bundling mechanism may be provided at both ends of the wire mesh 16.
　なお、貫通スリーブ材１０を構成する円筒状の耐火被覆材１１は、耐火・断熱性を有するロックウールを主材としたブランケット状の耐火被覆材が好ましいが、これに限られるものではない。
　また、貫通スリーブ材１０を構成する内部芯材１９は、スパイラルダクトや折り曲げ鋼板が好ましいが、これに限られるものではない。 The cylindrical fireproof covering material 11 constituting the through sleeve material 10 is preferably a blanket fireproof covering material mainly composed of rock wool having fire resistance and heat insulation properties, but is not limited thereto.
Further, the internal core material 19 constituting the through sleeve material 10 is preferably a spiral duct or a bent steel plate, but is not limited thereto.
　本願発明は、鉄骨梁の耐火被覆工法および鉄骨梁の耐火被覆構造として幅広く利用できるものである。 The present invention can be widely used as a fire-resistant coating method for steel beams and a fire-resistant coating structure for steel beams.
１０　貫通スリーブ材
１１　耐火材
１２　金属板
１３　凸部
１４　凹部
１５　結束機構
１６　金網
１７　結束部材
１９　内部芯材
８０　鉄骨梁
８１　ウェブ
８２　貫通孔部 DESCRIPTION OF SYMBOLS 10 Through-sleeve material 11 Refractory material 12 Metal plate 13 Convex part 14 Concave part 15 Binding mechanism 16 Wire net 17 Binding member 19 Internal core material 80 Steel beam 81 Web 82 Through-hole part

Claims (4)

  1. 　鉄骨梁のウェブに形成された貫通孔部に対する鉄骨梁の耐火被覆工法であって、
    　一面に金網または金属板を備えたシート状またはブランケット状の耐火材を平板状態で建築現場に搬入し、前記耐火材を円筒状にして貫通スリーブ材を形成し、前記貫通スリーブ材を貫通孔部に貫通させることを特徴とした鉄骨梁の耐火被覆工法。     A steel beam fireproof coating method for a through hole formed in a steel beam web,
    A sheet-shaped or blanket-shaped refractory material having a metal mesh or metal plate on one side is carried into a building site in a flat state, the refractory material is formed into a cylindrical shape to form a through sleeve material, and the through sleeve material is formed into a through hole portion. A fire-resistant coating method for steel beams, characterized by being penetrated through.
  2. 　前記耐火材の一面には金属板を備え、前記金属板には、円筒状にして貫通スリーブ材を形成するために金属板どうしを結束する結束機構を備えたことを特徴とした請求項１記載の鉄骨梁の耐火被覆工法。 The metal plate is provided on one surface of the refractory material, and the metal plate is provided with a bundling mechanism for bundling the metal plates to form a through sleeve material in a cylindrical shape. Fire-resistant coating method for steel beams.
  3. 　耐火材の一面には金網を備え、前記金網には、円筒状にして貫通スリーブ材を形成するために金網どうしを結束する結束部材または結束機構を備えたことを特徴とした請求項１記載の鉄骨梁の耐火被覆工法。 The refractory material is provided with a wire mesh on one surface, and the wire mesh is provided with a bundling member or a bundling mechanism for bundling the metal meshes so as to form a through sleeve material in a cylindrical shape. Fire-resistant coating method for steel beams.
  4. 　請求項１ないし３のいずれかに記載の鉄骨梁の耐火被覆工法によって施工された鉄骨梁の耐火被覆構造。 A fire-resistant covering structure for a steel beam constructed by the fire-resistant covering method for a steel beam according to any one of claims 1 to 3.
PCT/JP2014/078230 2013-10-23 2014-10-23 Steel beam refractory covering method and steel beam refractory covering structure WO2015060389A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2604169B (en) * 2021-02-26 2023-10-18 Interact Structural Fire Prot Limited Fire protection system for structual members

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522015B2 (en) * 1985-12-27 1993-03-26 Nichias Corp
JP4088201B2 (en) * 2003-05-23 2008-05-21 清水建設株式会社 Fireproof coating material and fireproof coating method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522015B2 (en) * 1985-12-27 1993-03-26 Nichias Corp
JP4088201B2 (en) * 2003-05-23 2008-05-21 清水建設株式会社 Fireproof coating material and fireproof coating method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2604169B (en) * 2021-02-26 2023-10-18 Interact Structural Fire Prot Limited Fire protection system for structual members

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