JP2017180002A - Fire preventive structure for penetration part through partitioning body of hollow structure - Google Patents
Fire preventive structure for penetration part through partitioning body of hollow structure Download PDFInfo
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- JP2017180002A JP2017180002A JP2016071960A JP2016071960A JP2017180002A JP 2017180002 A JP2017180002 A JP 2017180002A JP 2016071960 A JP2016071960 A JP 2016071960A JP 2016071960 A JP2016071960 A JP 2016071960A JP 2017180002 A JP2017180002 A JP 2017180002A
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- 230000035515 penetration Effects 0.000 title claims abstract description 15
- 238000000638 solvent extraction Methods 0.000 title abstract 9
- 230000003449 preventive effect Effects 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims description 45
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
Description
本発明は、建築物の中空構造の区画体における貫通部の防火構造に関する。 The present invention relates to a fire prevention structure of a penetrating portion in a partition having a hollow structure of a building.
建築物内に設けられた中空構造の区画体において、ケーブルや給水管などの管体を階上から階下又はその逆に通したり壁を通したりするためには、区画体に貫通部を形成して、この貫通部に管体を挿通する必要がある。この区画体の貫通部に防火性能を与えるためには、例えば貫通部に鋼製スリーブなどの不燃材を挿通したうえで貫通部の防火措置を行い、管体を鋼管スリーブの中を通して貫通部を貫通させていた。 In a partition with a hollow structure provided in a building, in order to pass a pipe such as a cable or a water supply pipe from the upper floor to the lower floor or vice versa or through a wall, a penetrating part is formed in the partition body. Therefore, it is necessary to insert a pipe body into this penetration part. In order to give fireproof performance to the penetrating part of this partition body, for example, after inserting a non-combustible material such as a steel sleeve into the penetrating part, fireproofing the penetrating part, and passing the pipe through the steel pipe sleeve, It was penetrating.
しかし、従来の防火構造では、図２に示すように区画体の１つの貫通部に１つの鋼製スリーブを設けていたため、施工作業が煩雑であるという課題があった。 However, in the conventional fire prevention structure, as shown in FIG. 2, since one steel sleeve was provided in one penetration part of the division body, there existed a subject that construction work was complicated.
本発明は、上記課題に着目してなされたもので、施工作業が簡易な建築物の区画体における貫通部の防火構造を提供することを目的とする。 This invention is made paying attention to the said subject, and it aims at providing the fire prevention structure of the penetration part in the division of a building with a simple construction work.
本発明の上記目的は、建築物内に設けられた中空構造の区画体を貫通しかつ管体が挿通される貫通部の防火構造であって、前記区画体は、第１の間仕切り材と、第１の間仕切り材と間隔をあけて設けられる第２の間仕切り材とを備えており、前記第１の間仕切り材を貫通する前記管体の周囲と、前記第２の間仕切り材を貫通する前記管体の周囲とが耐火材で覆われており、少なくとも１つの貫通部において、複数の管体が貫通部に挿通されている防火構造によって達成される。 The object of the present invention is a fire-proof structure of a penetrating portion that penetrates a hollow structure section provided in a building and through which a pipe body is inserted, and the section body includes a first partition material, A first partition member and a second partition member provided at an interval; the tube passing through the first partition member; and the tube penetrating the second partition member. This is achieved by a fireproof structure in which the periphery of the body is covered with a refractory material and a plurality of tubes are inserted through the through portions in at least one through portion.
上記構成の防火構造において、前記第１の第１の間仕切り材上に突き出る前記管体の外周面及び前記第２の間仕切り材上に突き出る前記管体の外周面のいずれかに、熱膨張性耐火シートが設けられていることが好ましい。 In the fire-proof structure having the above-described configuration, a thermally expandable fireproof material is provided on either the outer peripheral surface of the tubular body projecting on the first partition material or the outer peripheral surface of the tubular body projecting on the second partition material. A sheet is preferably provided.
また、上記構成の防火構造において、耐火材が、前記第１の間仕切り材の貫通孔内及び前記第２の間仕切り材の貫通孔内に充填されていることが好ましい。 Moreover, in the fireproof structure having the above configuration, it is preferable that the refractory material is filled in the through hole of the first partition material and the through hole of the second partition material.
また、上記構成の防火構造において、耐火材によって、前記第１の間仕切り材の貫通孔内及び前記第２の間仕切り材の貫通孔内が閉塞されていることが好ましい。 Moreover, in the fireproof structure of the said structure, it is preferable that the inside of the through-hole of the said 1st partition material and the inside of the through-hole of the said 2nd partition material are obstruct | occluded with the refractory material.
本発明の建築物の区画体における貫通部の防火構造によれば、施工作業が簡易な防火構造となる。 According to the fire-proof structure of the penetration part in the partition of the building of this invention, it becomes a fire-proof structure where construction work is simple.
以下、本発明の実施形態について添付図面を参照して説明する。本発明の防火構造は、複層建築物の壁、床、天井などの区画体に施工され、区画体に形成された貫通部から火災時に炎や熱が漏洩することを防止するためのものである。 Embodiments of the present invention will be described below with reference to the accompanying drawings. The fire prevention structure of the present invention is applied to a partition such as a wall, floor, or ceiling of a multi-layer building, and is intended to prevent leakage of flames and heat from a through-hole formed in the partition during a fire. is there.
図１は、本発明の一実施形態に係る防火構造を示しており、区画体に設けられた貫通部に配管やケーブルなどの管体が挿通された状態を説明するための模式部分断面図である。なお、図１(ａ)で図示した例は、貫通部に熱膨張性耐火シートを用いた例であり、図１(ｂ)で図示した例は、熱膨張性耐火シートを用いない例である。なお、図１の実施形態は、コンセントボックス４とケーブル電線管３を配置した例である。
区画体は、第１と第２の間仕切り材（壁５）を備えている。上記間仕切り材としては、ＡＬＣ板、プレキャストコンクリート板などの耐火性の高い素材を用いることができる。また、上記間仕切り材として、強化石膏ボード、ケイ酸カルシウム板、石膏ボード又はケイ酸カルシウム板にセラミックブランケットやロックウールフェルトを積層させた積層板などを用いることができる。なお、壁５の周囲には、図示は省略しているが、複数の根太、梁、野縁、野縁受けなどが配置されている。
FIG. 1 shows a fire prevention structure according to an embodiment of the present invention, and is a schematic partial cross-sectional view for explaining a state in which a pipe body such as a pipe or a cable is inserted into a penetrating portion provided in a partition body. is there. The example illustrated in FIG. 1A is an example in which a thermally expandable fireproof sheet is used for the penetrating portion, and the example illustrated in FIG. 1B is an example in which a thermally expandable fireproof sheet is not used. . 1 is an example in which an outlet box 4 and a cable conduit 3 are arranged.
The partition body includes first and second partition members (walls 5). As the partition material, a highly fire-resistant material such as an ALC plate or a precast concrete plate can be used. Moreover, the laminated board which laminated | stacked the ceramic blanket or the rock wool felt on the reinforcement | strengthening gypsum board, the calcium silicate board, the gypsum board, or the calcium silicate board etc. can be used. Although not shown, a plurality of joists, beams, field edges, field edge receivers, and the like are disposed around the wall 5.
区画体は、複数の壁材５で囲まれる中空空間を有する中空構造となっている。複数の壁材５には、管体（ケーブル電線管３）を挿通するための貫通孔がそれぞれの壁５に形成されており、両貫通孔及び中空空間により、貫通部が構成されている。 The partition body has a hollow structure having a hollow space surrounded by a plurality of wall materials 5. The plurality of wall members 5 are formed with through holes in the respective walls 5 for inserting pipe bodies (cable conduits 3), and the through portions are constituted by both the through holes and the hollow space.
貫通部に挿通される管体としては、例えば、冷媒管、熱媒管、水道管、下水管、注排水管、ガス管、暖冷房用媒体移送管、通気管、電線ケーブル、光ファイバーケーブルなどが挙げられる。 Examples of the pipe inserted through the penetration part include a refrigerant pipe, a heat medium pipe, a water pipe, a sewage pipe, a pouring / draining pipe, a gas pipe, a heating / cooling medium transfer pipe, a vent pipe, an electric cable, and an optical fiber cable. Can be mentioned.
図１(ａ)で図示した例では、壁５上に突き出るケーブル電線管５の外周面に熱膨張性耐火シート（シート１）が設けられており、ケーブル電線管５の壁５から室内空間側に露出した根元までの貫通孔内に、耐火材（パテ２）が設けられている。 In the example illustrated in FIG. 1A, a heat-expandable fireproof sheet (sheet 1) is provided on the outer peripheral surface of the cable conduit 5 protruding on the wall 5, and the indoor space side from the wall 5 of the cable conduit 5. A refractory material (putty 2) is provided in the through hole exposed to the base.
熱膨張性耐火シートは、本実施形態では所定の厚み（例えば０．１ｍｍ〜７．０ｍｍ）を有するシート状あるいは板状にした熱膨張性黒鉛を含有する樹脂シートであり、熱膨張性耐火シートに孔をあけて管体を貫通させ、樹脂シート自体の粘着力かあるいは粘着テープを予め熱膨張性耐火シートに貼り付けることにより、管体の外周面を被覆しつつ、壁５の管体の外周面に固定することができる。この熱膨張性耐火シートによる被覆は、貫通孔が熱膨張性耐火シートによって隠されていなくてもよいが、貫通孔が熱膨張性耐火シートによって隠されていることが好ましい。 The heat-expandable fireproof sheet is a resin sheet containing heat-expandable graphite in the form of a sheet or plate having a predetermined thickness (for example, 0.1 mm to 7.0 mm) in the present embodiment. The tube 5 is made to penetrate through the tube body, and the adhesive force of the resin sheet itself or an adhesive tape is attached to the thermally expandable fireproof sheet in advance to cover the outer peripheral surface of the tube body, It can be fixed to the outer peripheral surface. In the coating with the heat-expandable fireproof sheet, the through hole may not be hidden by the heat-expandable fireproof sheet, but the through-hole is preferably hidden by the heat-expandable fireproof sheet.
なお、壁５の貫通孔と管体との間の隙間に充填される耐火材は、シーリング剤（コーキング剤）、耐火パテ、セメントモルタルなどの不燃材、石膏ボード用目地処理材などを挙げることができる。なお、耐火材は、一方の壁５の貫通孔と管体との間の隙間に加えて、他方の壁５の貫通孔と管体との間の隙間にも充填されていることが好ましいが、いずれか一方の壁５の貫通孔と管体との間の隙間にだけ充填されていてもよい。 In addition, the refractory material filled in the gap between the through hole of the wall 5 and the pipe body includes a non-combustible material such as a sealing agent (caulking agent), a refractory putty, cement mortar, and a joint treatment material for gypsum board. Can do. The refractory material is preferably filled not only in the gap between the through hole of the one wall 5 and the pipe body but also in the gap between the through hole of the other wall 5 and the pipe body. The gap between the through hole of one of the walls 5 and the tube body may be filled only.
なお、図示例では、壁５の貫通孔と管体との間の隙間を隠すために、パテ２を貫通孔に充填して上記隙間を埋めているが、必ずしもパテ２を貫通孔に充填する必要はなく、貫通孔入口付近の管体の周囲や貫通孔出口付近の管体の周囲に設けることで、貫通孔と管体との間の上記隙間を隠すようにしてもよい。 In the illustrated example, in order to hide the gap between the through hole of the wall 5 and the tube body, the putty 2 is filled in the through hole to fill the gap, but the putty 2 is not necessarily filled in the through hole. It is not necessary, and the gap between the through hole and the tube body may be hidden by providing it around the tube body near the through hole entrance and around the tube body near the through hole exit.
上述した耐火材を用いた区画体の防火構造では、壁５の貫通孔が耐火材によって被覆されているので、例えば壁５の外側の室内空間で火災が発生して、管体が溶融・焼失したとしても、耐火材が火災時の熱によってその厚さ方向である管体の径方向に熱膨張等により火炎を防ぎ、管体の溶融・焼失によりできる空間が閉塞される。また、熱膨張した耐火材によって、貫通孔が遮蔽されるうえ、貫通孔と管体との間の隙間は耐火材により埋められている。よって、区画体の貫通孔及び管体を完全に閉塞できるため、火炎や熱が貫通孔や管体から他方の壁５の外側にある室内空間に侵入して、延焼することを防ぐことができる。 In the fire prevention structure of the partition body using the refractory material described above, since the through hole of the wall 5 is covered with the refractory material, for example, a fire occurs in the indoor space outside the wall 5 and the tube body is melted and burned out. Even if it does, a flame is prevented by the thermal expansion etc. to the radial direction of the pipe body which is the thickness direction by the heat | fever at the time of a fire, and the space formed by melting and burning of a pipe body is obstruct | occluded. Further, the through hole is shielded by the thermally expanded refractory material, and the gap between the through hole and the tube is filled with the refractory material. Therefore, since the through hole and the tube of the partition can be completely closed, it is possible to prevent the flame or heat from entering the indoor space outside the other wall 5 from the through hole or the tube and spreading the fire. .
また、耐火パテにより、壁５の貫通孔と管体との間の隙間が隠されるので、上記隙間を通して双方の室内空間を見えないようにすることができる。 Moreover, since the clearance gap between the through-hole of the wall 5 and a pipe body is concealed by a fireproof putty, both indoor space can be made invisible through the said clearance gap.
さらに、耐火材は、室内空間側から管体が貫通している貫通孔に充填するだけでよく容易に設置できるうえに、複雑な管体形状であったり、複数の管体が貫通部に挿通されていたとしても、管体の形状などに合わせて耐火材を設けることができるので、従来の鋼製スリーブを用いる場合と比べて、簡易な施工作業で良好な防火性能を発現できる。加えて、鋼製スリーブを用いないので、切断加工した後の不要な鋼管の残り屑を廃棄する必要がなく、施工コストも低減できる。なお、本発明では複数の管体が貫通部に挿通されているので、複数の管体をまとめて耐火材で被覆することができ、複数の管体をそれぞれ個別に耐火材で被覆する場合に比べて効率よく施工できる。 Furthermore, the refractory material can be installed easily by simply filling the through-hole through which the tube passes from the indoor space side. In addition, the tube has a complicated tube shape, and multiple tubes are inserted through the penetration. Even if it has been done, a fireproof material can be provided in accordance with the shape of the tubular body, etc., so that it is possible to express good fireproof performance with a simple construction work compared to the case of using a conventional steel sleeve. In addition, since the steel sleeve is not used, it is not necessary to discard unnecessary scraps of the steel pipe after cutting, and the construction cost can be reduced. In the present invention, since a plurality of tubular bodies are inserted through the penetration portion, the plurality of tubular bodies can be collectively covered with a refractory material, and each of the plurality of tubular bodies is individually covered with a refractory material. It can be constructed more efficiently.
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。 As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning of this invention.
例えば、上記実施形態の防火構造において、壁５上の貫通孔と管体との隙間に耐火材を設けているが、上記構成の防火構造において、前記第１の第１の間仕切り材上に突き出る前記管体の外周面及び前記第２の間仕切り材上に突き出る前記管体の外周面のいずれかに、熱膨張性耐火シートが設けてもよい。これにより、より良好な防火性能を発現できるが、図１(a)には、２つの壁５から突き出るそれぞれの管体の外周面のいずれか一方に対して熱膨張性耐火シートを設けられているが、２つの壁５から突き出るそれぞれの管体の外周面のいずれに対しても熱膨張性耐火シートを設けていてもよい。これにより、より確実な防火性能を発現することができる。 For example, in the fireproof structure of the above embodiment, a fireproof material is provided in the gap between the through hole on the wall 5 and the tubular body. In the fireproof structure of the above structure, the fireproof structure protrudes on the first first partition material. A heat-expandable fireproof sheet may be provided on either the outer peripheral surface of the tubular body or the outer peripheral surface of the tubular body protruding on the second partition material. As a result, a better fireproof performance can be expressed, but in FIG. 1 (a), a thermally expandable fireproof sheet is provided on one of the outer peripheral surfaces of the respective tubular bodies protruding from the two walls 5. However, a thermally expandable refractory sheet may be provided on any of the outer peripheral surfaces of the respective tubular bodies protruding from the two walls 5. Thereby, more reliable fireproof performance can be expressed.
熱膨張性耐火シートは、所定の厚みを有するシート状ないしは板状（例えば０．１ｍｍ〜７．０ｍｍ）であり、管体を挿通できる大きさの開口が形成されている。熱膨張性耐火シートは、壁５の貫通孔よりも一回り大きく形成されており、その形状は、正方形状や円形状など、種々の形状とすることができる。熱膨張性耐火シートは、壁５の貫通孔を遮蔽するように壁５の表面に敷設され、粘着剤、接着剤の他、ねじなどの物理的な固定手段を用いて壁５上に固定される。また、熱膨張性耐火シートには、開口から外周縁に達する切れ込み（図示せず）が設けられている。これにより、区画体の貫通部に挿通されている管体の周囲に対して熱膨張性耐火シートを設置できる。つまり、管体が区画体の貫通部に既に挿通されている場合に、熱膨張性耐火シートを開いた状態として、管体を開口に位置させ、その後、熱膨張性耐火シートを閉じて、壁５上に固定することで、管体の周囲に熱膨張性耐火シートを設けることができる。 The heat-expandable fireproof sheet has a sheet shape or a plate shape (for example, 0.1 mm to 7.0 mm) having a predetermined thickness, and has an opening that can be inserted through the tubular body. The heat-expandable refractory sheet is formed to be slightly larger than the through hole of the wall 5, and the shape thereof can be various shapes such as a square shape and a circular shape. The heat-expandable fireproof sheet is laid on the surface of the wall 5 so as to shield the through-hole of the wall 5, and is fixed on the wall 5 using physical fixing means such as an adhesive, an adhesive, and screws. The Moreover, the notch (not shown) which reaches an outer periphery from an opening is provided in the thermally expansible fireproof sheet. Thereby, a thermally expansible fireproof sheet can be installed with respect to the circumference | surroundings of the tubular body currently penetrated by the penetration part of the division body. That is, when the tubular body is already inserted into the penetrating portion of the partition body, the thermally expandable fireproof sheet is opened, the tubular body is positioned in the opening, and then the thermally expandable fireproof sheet is closed, By fixing on 5, a heat-expandable fireproof sheet can be provided around the tube.
また、上記構成の防火構造において、耐火材が、前記第１の間仕切り材の貫通孔内及び前記第２の間仕切り材の貫通孔内に充填されていることが好ましい。これにより、より確実な防火性能を発現することができる。 Moreover, in the fireproof structure having the above configuration, it is preferable that the refractory material is filled in the through hole of the first partition material and the through hole of the second partition material. Thereby, more reliable fireproof performance can be expressed.
また、上記構成の防火構造において、耐火材によって、前記第１の間仕切り材の貫通孔内及び前記第２の間仕切り材の貫通孔内が閉塞されていることが好ましい。これにより、より確実な防火性能を発現することができる。 また、貫通孔と管体との間の隙間が隠されるので、上記隙間を通して双方の室内空間を見えないようにすることができる。 Moreover, in the fireproof structure of the said structure, it is preferable that the inside of the through-hole of the said 1st partition material and the inside of the through-hole of the said 2nd partition material are obstruct | occluded with the refractory material. Thereby, more reliable fireproof performance can be expressed. Moreover, since the clearance gap between a through-hole and a tubular body is concealed, both indoor space can be made invisible through the said clearance gap.
１ 熱膨張性耐火シート
２ 耐火パテ（耐火材）
３ ケーブル電線管（管体）
４ コンセントボックス
５ 壁（間仕切り材）
1 Thermal expansion fireproof sheet 2 Fireproof putty (refractory material)
3 Cable conduit (tube)
4 Outlet box 5 Wall (partition material)
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| WO1999018303A1 (en) * | 1997-10-07 | 1999-04-15 | Hochstim Adolf R | Methods of fireproofing of combustible pipes and conduits |
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| JP2006149079A (en) * | 2004-11-18 | 2006-06-08 | Sekisui Chem Co Ltd | Fire-protection structure of zone through portion |
| JP2009197478A (en) * | 2008-02-21 | 2009-09-03 | Mirai Ind Co Ltd | Sleeve forming sheet and formation method for through-section structure |
| JP2011052448A (en) * | 2009-09-01 | 2011-03-17 | Sekisui Chem Co Ltd | Fire-resistive division penetrating-section structure |
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Patent Citations (6)
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|---|---|---|---|---|
| WO1999018303A1 (en) * | 1997-10-07 | 1999-04-15 | Hochstim Adolf R | Methods of fireproofing of combustible pipes and conduits |
| CN1469979A (en) * | 2000-09-19 | 2004-01-21 | �ʼҼ��ż�������˾ | Block for fire and smoke along a barrier penetrating member |
| JP2004232452A (en) * | 2003-01-10 | 2004-08-19 | Sekisui Chem Co Ltd | Fireproof compartment perforated part structure and construction method of fireproof compartment perforated part |
| JP2006149079A (en) * | 2004-11-18 | 2006-06-08 | Sekisui Chem Co Ltd | Fire-protection structure of zone through portion |
| JP2009197478A (en) * | 2008-02-21 | 2009-09-03 | Mirai Ind Co Ltd | Sleeve forming sheet and formation method for through-section structure |
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