JP2020022823A - Construction method for fire resistant structure of penetration part in compartment body of building - Google Patents

Construction method for fire resistant structure of penetration part in compartment body of building Download PDF

Info

Publication number
JP2020022823A
JP2020022823A JP2019204563A JP2019204563A JP2020022823A JP 2020022823 A JP2020022823 A JP 2020022823A JP 2019204563 A JP2019204563 A JP 2019204563A JP 2019204563 A JP2019204563 A JP 2019204563A JP 2020022823 A JP2020022823 A JP 2020022823A
Authority
JP
Japan
Prior art keywords
foam
cable
pipe
hole
fire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2019204563A
Other languages
Japanese (ja)
Other versions
JP6875490B2 (en
Inventor
泰一 牧田
Yasukazu Makita
泰一 牧田
秀康 中嶋
Hideyasu Nakajima
秀康 中嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP2019204563A priority Critical patent/JP6875490B2/en
Publication of JP2020022823A publication Critical patent/JP2020022823A/en
Application granted granted Critical
Publication of JP6875490B2 publication Critical patent/JP6875490B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

To provide a construction method for a fire resistant structure of a penetration part capable of easily filling a through-hole with a fire-resistant resin composition.SOLUTION: A construction method for a fire resistant structure of a penetration part in a compartment body of a building, including a through-hole 2 into which a pipe or a cable 4 is inserted includes: a surrounding process for surrounding an outer periphery of the pipe or cable 4 with a foam 5 consisting of a fire-resistant resin composition including thermally expandable graphite outside the through-hole 2; and a moving process for moving the foam 5 surrounding the pipe or cable 4 inside the through-hole 2.SELECTED DRAWING: Figure 1

Description

本発明は、建築物の壁等の区画体における貫通部の耐火構造の施工方法に関する。   The present invention relates to a method for constructing a fire-resistant structure at a penetration portion in a partition such as a wall of a building.

建築物の壁、床、板材などの区画体に配管又はケーブルを貫通させたい場合、かかる区画体には貫通孔が形成される。そして、かかる貫通孔の周囲に耐火性を付与するため、配管又はケーブルの外面と、貫通孔を区画形成する壁の内面との間の空間には通常、耐火性パテなどの充填材が充填されていた（例えば、特許文献１および２）。   When it is desired to penetrate a pipe or cable through a partition such as a wall, a floor, or a plate of a building, a through hole is formed in the partition. And, in order to provide fire resistance around the through-hole, the space between the outer surface of the pipe or cable and the inner surface of the wall defining the through-hole is usually filled with a filler such as a fire-resistant putty. (For example, Patent Documents 1 and 2).

特許文献１には、建築物の壁、床等の区画部に形成された貫通孔に貫通筒体を挿通し、前記貫通孔の内周面と貫通筒体の外周面との間に形成される隙間に設けられた耐火充填形成材を膨張させ、前記隙間を埋めて貫通筒体を貫通孔に貫通支持させる貫通部閉鎖方法が開示されている。   In Patent Literature 1, a through cylinder is inserted into a through hole formed in a partition such as a wall or a floor of a building, and is formed between an inner peripheral surface of the through hole and an outer peripheral surface of the through cylinder. There is disclosed a method of closing a through portion in which a refractory filling forming material provided in a gap is expanded so as to fill the gap and support the through cylinder body through a through hole.

特許文献２には、防火区画壁の貫通部を耐火処理すべく、該貫通部を形成する壁貫通筒体と該壁貫通筒体に挿通された管・ケーブル等との間で形成される隙間に粘土状の耐火充填材を充填する方法であって、前記耐火処理に必要とされる奥行方向の充填長と同一、又はこれよりも大きな幅寸法を有していて、その長手方向に巻回可能な平板シート状に形成された耐火充填材を使用し、平板シート状をした前記耐火充填材を巻回してロール状にしたロール状耐火材を形成し、前記隙間の横断面形状に倣うように前記ロール状耐火材を偏平円弧状に変形させて、該偏平円弧状のロール状耐火材の軸方向を前記貫通部の貫通方向に沿わせて、前記隙間に複数個のロール状耐火材を充填する耐火充填材の充填方法が開示されている。   Patent Document 2 discloses a gap formed between a wall penetrating cylindrical body forming the penetrating part and a pipe / cable inserted into the wall penetrating cylindrical body in order to perform a fireproof treatment on the penetrating part of the fireproof partition wall. A method of filling a clay-like refractory filler into the material, having a width dimension equal to or greater than the filling length in the depth direction required for the refractory treatment, and being wound in the longitudinal direction. Using a refractory filler formed in a possible flat sheet shape, the refractory filler in a flat sheet shape is wound to form a roll-shaped refractory material in a roll shape, so as to follow the cross-sectional shape of the gap. The roll-shaped refractory material is deformed into a flat arc shape, the axial direction of the flat arc-shaped roll-shaped refractory material is aligned with the penetration direction of the through portion, and a plurality of roll-shaped refractory materials are inserted into the gap. A method for filling a refractory filler to be filled is disclosed.

特許第3683727号Patent No. 3683727 特許第4033436号Patent No. 4033436

しかしながら、特許文献１に開示の方法では、複数のケーブル等が貫通筒体を貫通している時に、隙間のない様に耐火充填形成材を充填しなければならず、大変手間がかかっていた。   However, according to the method disclosed in Patent Literature 1, when a plurality of cables and the like penetrate the penetrating cylindrical body, the refractory filling forming material must be filled without gaps, which is very troublesome.

また、特許文献２に開示の方法では、複数の耐火充填材を何度も巻回してロール状にして、壁貫通筒体と管・ケーブル等との隙間に充填しなければならない。そのため、大変手間であり、また、貫通部に隙間が空いて耐火性能が低下する恐れがあった。   Further, in the method disclosed in Patent Document 2, a plurality of refractory fillers must be wound many times to form a roll, and filled in the gap between the wall penetrating cylinder and the pipe / cable. Therefore, it is very troublesome, and there is a possibility that a gap is formed in the penetrating portion and the fire resistance performance is reduced.

本発明は、上記問題を解決するためになされたものであって、容易に貫通孔を耐火樹脂組成物で充填することができる貫通部の耐火構造の施工方法の提供を目的とする。   The present invention has been made in order to solve the above-mentioned problem, and an object of the present invention is to provide a method of constructing a fire-resistant structure of a penetration portion in which a through-hole can be easily filled with a fire-resistant resin composition.

本発明者らは、上記の目的を達成すべく、熱膨張性黒鉛を含む耐火樹脂組成物からなる発泡体によって配管又はケーブルの外周を包囲し、その発泡体を貫通孔内に移動させることを見出し、本発明を完成するに至った。   The present inventors, in order to achieve the above object, to surround the outer periphery of the pipe or cable with a foam made of a refractory resin composition containing thermally expandable graphite, and to move the foam into the through hole. As a result, the present invention has been completed.

すなわち、本発明は以下の通りである。
［１］配管又はケーブルが挿通された貫通孔を有する、建築物の区画体における貫通部の耐火構造の施工方法において、
前記貫通孔の外側において、熱膨張性黒鉛を含む耐火樹脂組成物からなる発泡体によって、前記配管又はケーブルの外周を包囲する包囲工程と、
前記配管又はケーブルを包囲した発泡体を前記貫通孔内に移動させる移動工程と、
を有することを特徴とする方法。
［２］前記包囲工程では、
前記発泡体に厚み方向に貫通する切れ込みを形成し、前記配管又はケーブルを前記切れ込みに挟み込むことを特徴とする項１に記載の方法。
［３］前記切れ込みの平面視の形状は、前記発泡体の外周面から中心に向かって伸びるＶ字状であることを特徴とする項２に記載の方法。
［４］前記発泡体は板状を呈し、
前記包囲工程では、
前記発泡体が環状となるように前記発泡体の両端を互いに接触又は接近させて、前記配管又はケーブルの外周を前記発泡体によって包み込むことを特徴とする項１に記載の方法。
［５］前記発泡体の５０％圧縮硬さが４．４ｋＰａ〜１２．７ｋＰａであることを特徴とする項１〜４のいずれかに記載の方法。
［６］前記発泡体の引張強さが５０ｋＰａ〜１８０ｋＰａであることを特徴とする項１〜５のいずれかに記載の方法。 That is, the present invention is as follows.
[1] In a construction method of a fireproof structure of a penetration part in a building block having a through hole through which a pipe or a cable is inserted,
On the outside of the through hole, a surrounding step of surrounding the outer periphery of the pipe or cable by a foam made of a fire-resistant resin composition containing thermally expandable graphite,
A moving step of moving the foam surrounding the pipe or cable into the through hole,
A method comprising:
[2] In the surrounding step,
The method according to claim 1, wherein a cut is formed through the foam in a thickness direction, and the pipe or cable is sandwiched between the cuts.
[3] The method according to item 2, wherein the shape of the cut in a plan view is a V-shape extending from the outer peripheral surface of the foam toward the center.
[4] The foam has a plate shape,
In the surrounding step,
The method according to claim 1, wherein both ends of the foam are brought into contact with or close to each other so that the foam is annular, and the outer circumference of the pipe or cable is wrapped by the foam.
[5] The method according to any one of items 1 to 4, wherein the foam has a 50% compression hardness of 4.4 kPa to 12.7 kPa.
[6] The method according to any one of [1] to [5], wherein the foam has a tensile strength of 50 kPa to 180 kPa.

本発明によれば、容易に貫通孔を耐火樹脂組成物で充填することができる。   According to the present invention, the through-hole can be easily filled with the fire-resistant resin composition.

（ａ）は、第一実施形態に係る壁の略斜視図であり、（ｂ）は、当該壁のＡ−Ａ略断面図である。(A) is a schematic perspective view of a wall according to the first embodiment, and (b) is a schematic cross-sectional view of the wall taken along AA. （ａ）は貫通孔を形成した壁の略斜視図であり、（ｂ）は、さらに耐火性スリーブを設け、配管又はケーブルが挿通された壁の略斜視図である。(A) is a schematic perspective view of a wall in which a through hole is formed, and (b) is a schematic perspective view of a wall provided with a refractory sleeve and through which a pipe or a cable is inserted. （ａ）〜（ｃ）はそれぞれ、切れ込みを形成する前における発泡体の斜視図、平面図、及び側面図である。(A)-(c) is the perspective view, top view, and side view of a foam before forming a notch, respectively. （ａ）は、切れ込みを形成した発泡体の平面図であり、（ｂ）は、配管又はケーブルを切れ込みに挟み込んだ発泡体の平面図であり、（ｃ）は、切れ込みを閉じた発泡体の平面図である。(A) is a plan view of a foam in which a cut is formed, (b) is a plan view of a foam in which a pipe or a cable is sandwiched between cuts, and (c) is a plan view of a foam in which the cut is closed. It is a top view. （ａ）及び（ｂ）は、発泡体を耐火性スリーブ内に移動させる状態を示す斜視図である。(A) And (b) is a perspective view which shows the state which moves a foam inside a refractory sleeve. 第一実施形態の変形例に係る壁の側視図である。It is a side view of a wall concerning a modification of a first embodiment. （ａ）は、第二実施形態に係る壁の略斜視図であり、（ｂ）は、当該壁のＡ−Ａ略断面図である。(A) is a schematic perspective view of the wall which concerns on 2nd embodiment, (b) is AA schematic sectional drawing of the said wall. （ａ）〜（ｄ）はそれぞれ、環状に変形させる前における発泡体の斜視図、平面図、正面図、及び側面図である。(A)-(d) is a perspective view, a plan view, a front view, and a side view of the foam before it is deformed into an annular shape, respectively. （ａ）は、変形前の発泡体の正面図であり、（ｂ）及び（ｃ）は、配管又はケーブルを包み込んだ発泡体の正面図である。(A) is a front view of the foam before deformation, (b) and (c) are front views of the foam enclosing the pipe or the cable. （ａ）及び（ｂ）は、発泡体を耐火性スリーブ内に移動させる状態を示す斜視図である。(A) And (b) is a perspective view which shows the state which moves a foam inside a refractory sleeve. 第二実施形態の変形例に係る変形前の発泡体の正面図である。It is a front view of the foam before deformation concerning the modification of a second embodiment. 第二実施形態の変形例に係る壁の側視図である。It is a side view of a wall concerning a modification of a second embodiment.

〔第一実施形態〕
以下、本発明の第一実施形態である建築物の区画体における貫通部の耐火構造について説明する。 (First embodiment)
Hereinafter, the fireproof structure of the penetrating portion in the partition of the building according to the first embodiment of the present invention will be described.

図１（ａ）は、建築物の区画体である第一実施形態に係る壁１の略斜視図であり、図１（ｂ）は、壁１のＡ−Ａ略断面図である。壁１は、本実施形態では、軽量気泡コンクリート（ＡＬＣ）壁又はモルタルで忠実に形成された壁の一つを図示したものである。なお壁１は、例えばコンクリート壁や木軸、鋼製スタッドと石膏ボードとから構成された中空壁であってもよい。また、壁１は、垂直方向に延びる壁に限られず、床又は板であってもよい。   FIG. 1A is a schematic perspective view of a wall 1 according to a first embodiment, which is a partition of a building, and FIG. 1B is a schematic cross-sectional view of the wall 1 along A-A. The wall 1 is, in the present embodiment, one of a lightweight cellular concrete (ALC) wall or a wall faithfully formed of mortar. The wall 1 may be, for example, a concrete wall, a wooden shaft, or a hollow wall composed of a steel stud and a gypsum board. Further, the wall 1 is not limited to a wall extending in the vertical direction, and may be a floor or a plate.

壁１には、配管又はケーブル４が挿通された断面形状が略円形の貫通孔２を有する貫通部が形成されている。貫通孔２の内壁には、金属製又は熱膨張性の耐火性スリーブ３が設けられている。耐火性スリーブ３は、断面形状が略円形であり、その内径Ｒ１は、配管又はケーブル４を挿通できる寸法である。耐火性スリーブ３の長さＬ２は、壁１の厚みＬ１、すなわち貫通孔２の延びる方向（貫通孔２が円筒形であれば軸方向）の長さ以上であることが好ましい（Ｌ２≧Ｌ１）。なお、耐火性スリーブ３は必須の構成ではなく、特に、壁１が中空壁でない場合は、耐火性スリーブ３を設けなくてもよい。 The wall 1 is formed with a through portion having a substantially circular through hole 2 in which a pipe or cable 4 is inserted. The inner wall of the through hole 2 is provided with a refractory sleeve 3 made of metal or thermally expandable. Refractory sleeve 3 is substantially circular cross-sectional shape, an inner diameter R 1 is dimensioned to insert a pipe or cable 4. The length L 2 of the refractory sleeve 3, the thickness L 1 of the wall 1, i.e. it is preferred direction of extension of the through-holes 2 is greater than or equal to the length of (the through-hole 2 is axially long cylindrical) (L 2 ≧ L 1 ). The fire-resistant sleeve 3 is not an essential component. In particular, when the wall 1 is not a hollow wall, the fire-resistant sleeve 3 may not be provided.

配管又はケーブル４は、図１では２本の配管又はケーブル４が示されているが、その数は限定されず、１本又は３本以上の任意の配管又はケーブルを使用することができる。ケーブルとしては、例えば、ＣＶケーブル、単心ケーブルを２本束ねたＣＶＤケーブル、単心ケーブルを３本束ねたＣＶＴケーブル等の他、他の電源ケーブル、信号ケーブル等を挙げることができる。また配管としては、例えば、給排水管、吸排気管、水道管、ガス管、冷暖房用媒体移送管等を挙げることができる。   Although two pipes or cables 4 are shown in FIG. 1 for the pipes or cables 4, the number is not limited and one or three or more arbitrary pipes or cables can be used. Examples of the cable include a CV cable, a CVD cable in which two single-core cables are bundled, a CVT cable in which three single-core cables are bundled, and other power cables, signal cables, and the like. Examples of the piping include a water supply / drainage pipe, an intake / exhaust pipe, a water pipe, a gas pipe, a cooling / heating medium transfer pipe, and the like.

金属製の耐火性スリーブ３としては鋼製のものが好ましく、そのようなスリーブは公知である。熱膨張性の耐火性スリーブ３としては、バインダー又はマトリックスとしての樹脂、熱膨張性黒鉛及び無機充填材を含む熱膨張性樹脂組成物からなるスリーブが挙げられ、スリーブを形成するために使用可能な市販の耐火性シートとしては、例えば積水化学工業社製フィブロック（登録商標。エポキシ樹脂、ブチルゴム、またはポリ塩化ビニル樹脂を樹脂成分とし、任意選択のリン化合物、熱膨張性黒鉛および無機充填材等を含む熱膨張性樹脂組成物のシート状成形物）、住友スリーエム社のファイアバリア（クロロプレンゴムとバーキュライトを含有する樹脂組成物からなるシート材料、膨張率：３倍、熱伝導率：０．２０ｋｃａｌ／ｍ・ｈ・℃）、三井金属塗料化学社のメジヒカット（ポリウレタン樹脂と熱膨張性黒鉛を含有する樹脂組成物からなるシート材料、膨張率：４倍、熱伝導率：０．２１ｋｃａｌ／ｍ・ｈ・℃）などが挙げられる。   The refractory sleeve 3 made of metal is preferably made of steel, and such a sleeve is known. Examples of the heat-expandable refractory sleeve 3 include a sleeve made of a heat-expandable resin composition containing a resin as a binder or a matrix, heat-expandable graphite and an inorganic filler, and can be used to form the sleeve. Commercially available refractory sheets include, for example, Fibroc (registered trademark, manufactured by Sekisui Chemical Co., Ltd .; epoxy resin, butyl rubber, or polyvinyl chloride resin as a resin component, and an optional phosphorus compound, thermally expandable graphite, inorganic filler, and the like. (A sheet-like molded product of a heat-expandable resin composition containing styrene), a fire barrier manufactured by Sumitomo 3M Co., Ltd. (a sheet material composed of a resin composition containing chloroprene rubber and vercurite, expansion rate: 3 times, thermal conductivity: 0) .20 kcal / m · h · ° C.), MEGISHICUT (resin set containing polyurethane resin and heat-expandable graphite) from Mitsui Kinzoku Paint Chemicals Sheet material, expansion consisting By: 4 times, thermal conductivity: 0.21kcal / m · h · ℃) and the like.

本実施形態では、第一実施形態に係る耐火構造の施工方法による耐火構造が貫通部に施されている。具体的には、貫通孔２（耐火性スリーブ３）の内部において、配管又はケーブル４の外周が発泡体５によって包囲されている。発泡体５は、熱膨張性黒鉛を含む耐火樹脂組成物からなる。これにより、火災発生時に燃焼により焼失した部分を発泡体５の膨張成分によって埋めることができる。また、発泡体５には、厚み方向に貫通する切れ込み５１が形成されている。   In the present embodiment, the fire-resistant structure according to the method for constructing a fire-resistant structure according to the first embodiment is applied to the through portion. Specifically, the outer periphery of the pipe or cable 4 is surrounded by the foam 5 inside the through-hole 2 (the refractory sleeve 3). The foam 5 is made of a fire-resistant resin composition containing thermally expandable graphite. Thereby, the portion burned out by burning when a fire occurs can be filled with the expansion component of the foam 5. The foam 5 has a notch 51 penetrating in the thickness direction.

耐火樹脂組成物は、スポンジ等の弾力性のある樹脂成分の素材に熱膨張性黒鉛を含有させることにより形成される。そのような樹脂成分としては、ウレタン樹脂、好ましくは軟質ウレタン、さらに好ましくは不燃性の軟質ウレタン、オレフィン系フォームやゴム系オーム等が挙げられる。なお、軟質ウレタンは、ポリオールとポリイソシアネートとを主成分とし、触媒、整泡剤、発泡剤等などを混合して発泡させたものであって、連続気泡を有
し、復元力を有するウレタン樹脂を指す。軟質ウレタンの発泡倍率は通常約５〜約１００倍であるが、これに限定されない。 The refractory resin composition is formed by adding a thermally expandable graphite to a material of an elastic resin component such as a sponge. Examples of such a resin component include a urethane resin, preferably a soft urethane, more preferably a non-flammable soft urethane, an olefin-based foam, a rubber-based ohm, and the like. In addition, the soft urethane is a urethane resin having a polyol, a polyisocyanate as a main component, and a mixture of a catalyst, a foam stabilizer, a foaming agent, and the like, and foaming. Point to. The expansion ratio of soft urethane is usually about 5 to about 100, but is not limited thereto.

熱膨張性黒鉛は、従来公知の物質であり、天然鱗状グラファイト、熱分解グラファイト、キッシュグラファイト等の粉末を濃硫酸、硝酸、セレン酸等の無機酸と、濃硝酸、過塩素酸、過塩素酸塩、過マンガン酸塩、重クロム酸塩、過酸化水素等の強酸化剤とで処理してグラファイト層間化合物を生成させたもので、炭素の層状構造を維持したままの結晶化合物である。このように酸処理して得られた熱膨張性黒鉛は、さらにアンモニア、脂肪族低級アミン、アルカリ金属化合物、アルカリ土類金属化合物等で中和したものを使用するのが好ましい。   Thermal expansible graphite is a conventionally known substance, and powders such as natural scale graphite, pyrolytic graphite, and quiche graphite are concentrated sulfuric acid, nitric acid, inorganic acids such as selenic acid, and concentrated nitric acid, perchloric acid, and perchloric acid. It is a crystalline compound which has been treated with a strong oxidizing agent such as salt, permanganate, dichromate, hydrogen peroxide or the like to produce a graphite intercalation compound, and which maintains a layered structure of carbon. It is preferable to use the heat-expandable graphite obtained by the acid treatment, which is further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

熱膨張性黒鉛の粒度は、２０〜２００メッシュが好ましい。粒度が２００メッシュより小さくなると、黒鉛の膨張度が小さく、十分な膨張断熱層が得られず、また粒度が２０メッシュより大きくなると、黒鉛の膨張度が大きいという利点はあるが、樹脂に配合する際に分散性が悪くなり、物性の低下が避けられない。熱膨張性黒鉛の市販品としては、例えば、東ソー社製「ＧＲＥＰ−ＥＧ」、ＧＲＡＦＴＥＣＨ社製「ＧＲＡＦＧＵＡＲＤ」等が挙げられる。   The particle size of the heat-expandable graphite is preferably from 20 to 200 mesh. When the particle size is smaller than 200 mesh, the degree of expansion of graphite is small and a sufficient expanded heat insulating layer cannot be obtained. When the particle size is larger than 20 mesh, there is an advantage that the degree of expansion of graphite is large. In this case, dispersibility deteriorates, and deterioration of physical properties cannot be avoided. Commercially available products of the heat-expandable graphite include, for example, "GREP-EG" manufactured by Tosoh Corporation, "GRAFGUARD" manufactured by GRAFTECH, and the like.

耐火樹脂組成物において、熱膨張性黒鉛の配合量は、樹脂成分１００重量部に対して１０〜３００重量部が好ましい。配合量が１０重量部以上であると、体積膨張率が大きく配管又はケーブル４を構成する合成樹脂製部材が焼失した部分を十分埋めきることができ防火性能が発揮され、３００重量部以下であると機械的強度が維持される。熱膨張性黒鉛の配合量は、より好ましくは２０〜２５０重量部である。   In the refractory resin composition, the amount of the heat-expandable graphite is preferably from 10 to 300 parts by weight based on 100 parts by weight of the resin component. When the compounding amount is 10 parts by weight or more, the volume expansion coefficient is large, the portion where the synthetic resin member constituting the pipe or the cable 4 is burned out can be sufficiently filled, fire prevention performance is exhibited, and the content is 300 parts by weight or less. And mechanical strength is maintained. The compounding amount of the heat-expandable graphite is more preferably 20 to 250 parts by weight.

続いて、第一実施形態に係る貫通部の耐火構造の施工方法について説明する。まず、図２（ａ）に示すように、断面形状が略円形の貫通孔２を壁１に形成する。さらに、図２（ｂ）に示すように、貫通孔２の内壁に耐火性スリーブ３を設け、耐火性スリーブ３内に配管又はケーブル４を挿通する。   Subsequently, a method for constructing the fireproof structure of the penetration portion according to the first embodiment will be described. First, as shown in FIG. 2A, a through hole 2 having a substantially circular cross section is formed in the wall 1. Further, as shown in FIG. 2 (b), a fire-resistant sleeve 3 is provided on the inner wall of the through hole 2, and a pipe or a cable 4 is inserted into the fire-resistant sleeve 3.

続いて、熱膨張性黒鉛を含む耐火樹脂組成物からなる発泡体５を準備する。図３（ａ）〜（ｃ）はそれぞれ、発泡体５の斜視図、平面図、及び側面図である。発泡体５は、略円柱形状に成形されている。発泡体５の厚みＴ１は、特に限定されないが、図１（ｂ）に示す壁１の厚さＬ１に略等しいことが好ましい。発泡体５の直径Ｒ２も特に限定されないが、図１（ｂ）に示す耐火性スリーブ３の内径Ｒ１より若干大きい、又は略等しいことが好ましい。 Subsequently, a foam 5 made of a refractory resin composition containing thermally expandable graphite is prepared. 3A to 3C are a perspective view, a plan view, and a side view, respectively, of the foam 5. The foam 5 is formed in a substantially cylindrical shape. The thickness T 1 of the foam 5 is not particularly limited, generally is preferably equal to the thickness L 1 of the wall 1 shown in FIG. 1 (b). It is not particularly limited in diameter R 2 of the foam 5, slightly larger than the inner diameter R 1 of the refractory sleeve 3 shown in FIG. 1 (b), or substantially preferably equal.

続いて、図４（ａ）に示すように、発泡体５に厚み方向に貫通する切れ込み５１を形成する。切れ込み５１の平面視の形状は、発泡体５の外周面から中心に向かって伸びるＶ字状である。また、切れ込み５１の先端部５１ａは、発泡体５の平面視の中心に一致していなくてもよい。   Subsequently, as shown in FIG. 4A, a cut 51 penetrating in the thickness direction is formed in the foam 5. The shape of the cut 51 in a plan view is a V-shape extending from the outer peripheral surface of the foam 5 toward the center. Further, the distal end portion 51a of the cut 51 does not have to coincide with the center of the foam 5 in plan view.

続いて、図４（ｂ）に示すように、配管又はケーブル４を切れ込み５１に挟み込む。これにより、発泡体５によって配管又はケーブル４の外周の一部を包囲する（包囲工程）。   Subsequently, as shown in FIG. 4B, the pipe or the cable 4 is sandwiched between the cuts 51. Thereby, a part of the outer periphery of the pipe or the cable 4 is surrounded by the foam 5 (surrounding step).

さらに、図４（ｃ）に示すように、切れ込み５１を区画形成する２つの内面５１ｂ同士を接触させるように切れ込み５１を閉じてもよい。これにより、切れ込み５１は平面視直線状となり、発泡体５によって配管又はケーブル４の外周がほぼ完全に包囲される。   Further, as shown in FIG. 4C, the notch 51 may be closed so that two inner surfaces 51b that define the notch 51 are in contact with each other. As a result, the cut 51 becomes linear in plan view, and the outer periphery of the pipe or cable 4 is almost completely surrounded by the foam 5.

なお、図４（ｂ）及び（ｃ）に示す工程は、貫通孔２の外側において行われる。また、図４（ａ）に示す切れ込み５１を備えた発泡体５を準備する工程は、図２（ａ）及び（ｂ
）に示す工程の前に行ってもよいし、後に行ってもよい。また、切れ込み５１のＶ字のなす角度α、及び切れ込み５１の辺の長さＬ３は特に限定されないが、配管又はケーブル４を切れ込み５１に容易に挟み込める大きさであればよい。 The steps shown in FIGS. 4B and 4C are performed outside the through-hole 2. In addition, the step of preparing the foam 5 having the cuts 51 shown in FIG.
This step may be performed before or after the step shown in ()). Further, the angle of the V-shaped notch 51 alpha, and although the length L 3 of the sides of the cut 51 is not particularly limited, a pipe or cable 4 may be a readily Hasamikomeru magnitude notch 51.

続いて、図５（ａ）に示すように、配管又はケーブル４を包囲した発泡体５を貫通孔２内（本実施形態では耐火性スリーブ３内）に移動させる（移動工程）。これにより、図１に示すように、貫通孔２の内部において、配管又はケーブル４の外周を発泡体５によって包囲することができる。   Subsequently, as shown in FIG. 5A, the foam 5 surrounding the pipe or cable 4 is moved into the through-hole 2 (in the fire-resistant sleeve 3 in the present embodiment) (moving step). Thereby, as shown in FIG. 1, the outer periphery of the pipe or cable 4 can be surrounded by the foam 5 inside the through hole 2.

ここで、発泡体５の５０％圧縮硬さは４．４ｋＰａ〜１２．７ｋＰａであることが好ましい。この場合、発泡体５の断面の直径が、貫通孔２又は耐火性スリーブ３の内径より多少大きくても、発泡体５を圧縮して貫通孔２又は耐火性スリーブ３に容易に押し込むことができる。また、耐火性スリーブ３内に移動した発泡体５は、自己回復性により切れ込み５１が広がるように変形するため、発泡体５の外面が耐火性スリーブ３の内面に密着する。   Here, the 50% compression hardness of the foam 5 is preferably from 4.4 kPa to 12.7 kPa. In this case, even if the cross-sectional diameter of the foam 5 is slightly larger than the inner diameter of the through hole 2 or the refractory sleeve 3, the foam 5 can be compressed and easily pushed into the through hole 2 or the refractory sleeve 3. . In addition, the foam 5 that has moved into the fire-resistant sleeve 3 is deformed so that the notch 51 is widened by self-healing properties, so that the outer surface of the foam 5 closely adheres to the inner surface of the fire-resistant sleeve 3.

また、発泡体５の引張強さは５０ｋＰａ〜１８０ｋＰａであることが好ましい。これにより、配管又はケーブル４を挟み込むために発泡体５を大きく変形させた場合であっても、発泡体５の破損を防止することができる。   Further, the tensile strength of the foam 5 is preferably 50 kPa to 180 kPa. Thereby, even when the foam 5 is largely deformed in order to sandwich the pipe or the cable 4, breakage of the foam 5 can be prevented.

このように、本実施形態では、単一の発泡体５の切れ込み５１に配管又はケーブル４を挟み込み、発泡体５を貫通孔２内に移動させるだけで、貫通部を配管又はケーブル４および発泡体５で密に充填することができる。よって、一度の作業で容易に耐火構造を施工することができる。   As described above, in the present embodiment, the pipe or the cable 4 is sandwiched between the cuts 51 of the single foam 5 and the foam 5 is moved into the through-hole 2, and the penetration portion is connected to the pipe or the cable 4 and the foam 4. 5 can be densely packed. Therefore, the fireproof structure can be easily constructed by one operation.

なお、上記の第一の実施形態は以下のように変更可能である。
・発泡体５を移動させる際に、発泡体５を配管又はケーブル４に対してスライドさせてもよいし、配管又はケーブル４を発泡体５とともに移動させてもよい。また、切れ込み５１がＶ字状を保ったまま、発泡体５を移動させてもよい。
・あらかじめ耐火性スリーブ３内に配管又はケーブル４を挿通させず、図５（ｂ）に示すように、発泡体５を貫通孔２に移動させる際に、配管又はケーブル４を耐火性スリーブ３内に挿通してもよい。
・図１では、耐火性スリーブ３内に移動させた後の発泡体５の切れ込み５１は、平面視直線状であるが、図６に示すように、平面視Ｖ字状であってもよい。この場合、配管又はケーブル４の外周の一部は発泡体５によって包囲されず、多少の隙間が生じるが、火災発生時に燃焼により焼失した部分を発泡体５の膨張成分によって埋めることができる程度の隙間であれば、耐火構造上問題はない。
・上述のように、耐火性スリーブ３は必須の構成ではなく、耐火性スリーブ３を省略し、発泡体５を貫通孔２の内壁に接触するように設けてもよい。
・本実施形態では、貫通孔２及び耐火性スリーブ３の断面形状、並びに、発泡体５の平面視形状は、略円形であったが、本発明はこれに限定されない。これらの形状を例えば、略楕円形状や矩形状としてもよい。
・本実施形態では、発泡体５の切れ込み５１の形状は、平面視Ｖ字状であったが、配管又はケーブル４を挟み込むことが可能な形状であれば特に限定されず、例えば、直線状やＵ字状としてもよい。
・発泡体５の外面に接着層を設けてもよい。これにより、発泡体５が貫通孔２又は耐火性スリーブ３の外部にはみ出すことを確実に防止することができる。 The first embodiment can be changed as follows.
When moving the foam 5, the foam 5 may be slid with respect to the pipe or the cable 4, or the pipe or the cable 4 may be moved together with the foam 5. Further, the foam 5 may be moved while the notch 51 maintains the V-shape.
When the foam 5 is moved to the through hole 2 as shown in FIG. 5B without inserting the pipe or cable 4 in the fire-resistant sleeve 3 in advance, the pipe or cable 4 is inserted into the fire-resistant sleeve 3. May be inserted.
In FIG. 1, the cuts 51 of the foam 5 after being moved into the refractory sleeve 3 are linear in plan view, but may be V-shaped in plan as shown in FIG. 6. In this case, a part of the outer periphery of the pipe or the cable 4 is not surrounded by the foam 5, and some gaps are generated. If there is a gap, there is no problem in the fireproof structure.
As described above, the refractory sleeve 3 is not an essential component, and the refractory sleeve 3 may be omitted and the foam 5 may be provided so as to contact the inner wall of the through hole 2.
-In this embodiment, although the cross-sectional shape of the through-hole 2 and the refractory sleeve 3 and the shape of the foam 5 in a plan view are substantially circular, the present invention is not limited to this. These shapes may be, for example, a substantially elliptical shape or a rectangular shape.
In the present embodiment, the shape of the cut 51 of the foam 5 is V-shaped in a plan view, but is not particularly limited as long as it can sandwich the pipe or the cable 4. It may be U-shaped.
-An adhesive layer may be provided on the outer surface of the foam 5. Thereby, it is possible to reliably prevent the foam 5 from protruding outside the through hole 2 or the refractory sleeve 3.

〔第二実施形態〕
以下、本発明の第二実施形態である建築物の区画体における貫通部の耐火構造について
説明する。なお、前述の第一実施形態におけるものと同一の部材については、同一の符号を付し、その説明を省略する。 (Second embodiment)
Hereinafter, the fireproof structure of the penetrating portion in the partition of the building according to the second embodiment of the present invention will be described. The same members as those in the first embodiment described above are denoted by the same reference numerals, and description thereof will be omitted.

図７（ａ）は、建築物の区画体である第二実施形態の壁１の略斜視図であり、図７（ｂ）は、壁１のＡ−Ａ略断面図である。第一実施形態と同様、壁１には、貫通孔２を有する貫通部が形成され、貫通孔２の内壁には、耐火性スリーブ３が設けられており、さらに、耐火性スリーブ３には配管又はケーブル４が挿通されている。本実施形態においても、耐火性スリーブ３は必須の構成ではなく、特に、壁１が中空壁でない場合は、耐火性スリーブ３を設けなくてもよい。   FIG. 7A is a schematic perspective view of the wall 1 of the second embodiment, which is a partition of a building, and FIG. 7B is a schematic cross-sectional view of the wall 1 taken along line AA. As in the first embodiment, a through-hole having a through-hole 2 is formed in the wall 1, and a fire-resistant sleeve 3 is provided on the inner wall of the through-hole 2. Alternatively, the cable 4 is inserted. Also in the present embodiment, the fire-resistant sleeve 3 is not an essential component. In particular, when the wall 1 is not a hollow wall, the fire-resistant sleeve 3 may not be provided.

また、第二実施形態に係る耐火構造の施工方法による耐火構造が貫通部に施されており、具体的には、配管又はケーブル４の外周が環状の発泡体１５によって包囲されている。配管又はケーブル４は、図７では３本の配管又はケーブル４が示されているが、その数は限定されず、１本、２本又は４本以上の任意の配管又はケーブルを使用することができる。発泡体１５の材質は、第一実施形態における発泡体５と同様であり、熱膨張性黒鉛を含む耐火樹脂組成物からなる。これにより、火災発生時に燃焼により焼失した部分を発泡体１５の膨張成分によって埋めることができる。また、発泡体１５には、接触部１５１が形成されている。接触部１５１は、後述するように、環状に変形させる前の発泡体１５の両端を互いに接触させた部分である。   In addition, a fire-resistant structure according to the method for constructing a fire-resistant structure according to the second embodiment is applied to the penetrating portion. Specifically, the outer periphery of the pipe or cable 4 is surrounded by an annular foam 15. Although three pipes or cables 4 are shown in FIG. 7 for the pipes or cables 4, the number is not limited, and one, two, or four or more arbitrary pipes or cables may be used. it can. The material of the foam 15 is the same as the foam 5 in the first embodiment, and is made of a fire-resistant resin composition containing thermally expandable graphite. Thereby, the part burned out by burning when a fire occurs can be filled with the expansion component of the foam 15. In addition, a contact portion 151 is formed in the foam 15. The contact portion 151 is a portion where both ends of the foam 15 before being deformed into an annular shape are in contact with each other, as described later.

続いて、第二実施形態に係る貫通部の耐火構造の施工方法について説明する。まず、第一実施形態と同様、図２（ａ）に示すように、断面形状が略円形の貫通孔２を壁１に形成し、図２（ｂ）に示すように、貫通孔２の内壁に耐火性スリーブ３を設け、耐火性スリーブ３内に配管又はケーブル４を挿通する。   Subsequently, a method for constructing the fireproof structure of the penetrating portion according to the second embodiment will be described. First, as in the first embodiment, a through hole 2 having a substantially circular cross section is formed in the wall 1 as shown in FIG. 2A, and the inner wall of the through hole 2 is formed as shown in FIG. Is provided with a refractory sleeve 3, and a pipe or cable 4 is inserted into the refractory sleeve 3.

続いて、熱膨張性黒鉛を含む耐火樹脂組成物からなる発泡体１５を準備する。図８（ａ）〜（ｄ）はそれぞれ、発泡体１５の斜視図、平面図、正面図、及び側面図である。発泡体１５は、平面視矩形の板状に成形されている。発泡体１５の幅Ｗは、特に限定されないが、図７（ｂ）に示す壁１の厚さＬ１に略等しいことが好ましい。発泡体１５の厚みＴ２及び長さＬ３も、特に限定されないが、後述するように発泡体１５を環状に変形させた場合に、発泡体１５の直径が図１（ｂ）に示す耐火性スリーブ３の内径Ｒ１に略等しくなるような寸法であることが好ましい。 Subsequently, a foam 15 made of a refractory resin composition containing thermally expandable graphite is prepared. FIGS. 8A to 8D are a perspective view, a plan view, a front view, and a side view of the foam 15, respectively. The foam 15 is formed in a rectangular plate shape in a plan view. Width W of the foam 15 is not particularly limited, generally it is preferably equal to the thickness L 1 of the wall 1 shown in FIG. 7 (b). The thickness T 2 and the length L 3 of the foam 15 are also not particularly limited. However, when the foam 15 is deformed into a ring shape as described later, the diameter of the foam 15 becomes the fire resistance shown in FIG. it is preferably dimensioned to substantially equal to the inner diameter R 1 of the sleeve 3.

続いて、図９（ａ）に示すように、発泡体１５の上面に３本の配管又はケーブル４を配置する。   Subsequently, as shown in FIG. 9A, three pipes or cables 4 are arranged on the upper surface of the foam 15.

続いて、図９（ｂ）に示すように、発泡体１５が環状となるように発泡体１５の両端１５ａを互いに接触させて、前記配管又はケーブルの外周を前記発泡体によって包み込む。これにより、発泡体１５によって配管又はケーブル４の外周がほぼ完全に包囲される（包囲工程）。なお、発泡体１５の両端１５ａが互いに接触した部分が接触部１５１となる。   Subsequently, as shown in FIG. 9B, both ends 15a of the foam 15 are brought into contact with each other so that the foam 15 becomes annular, and the outer periphery of the pipe or cable is wrapped by the foam. Thereby, the outer periphery of the pipe or the cable 4 is almost completely surrounded by the foam 15 (surrounding step). In addition, the part where both ends 15a of the foam 15 contact each other becomes the contact part 151.

なお、発泡体１５の両端１５ａを互いに接触させる必要はなく、図９（ｃ）のように、発泡体１５の両端１５ａを互いに接近させてもよい。すなわち、発泡体１５の両端１５ａは多少離間してもよく、発泡体１５を完全な環に変形する必要はない。   Note that the both ends 15a of the foam 15 need not be in contact with each other, and the both ends 15a of the foam 15 may be close to each other as shown in FIG. 9C. That is, both ends 15a of the foam 15 may be slightly separated, and it is not necessary to transform the foam 15 into a complete ring.

続いて、図１０（ａ）に示すように、配管又はケーブル４を包囲した発泡体１５を貫通孔２内（本実施形態では耐火性スリーブ３内）に移動させる（移動工程）。これにより、図７に示すように、貫通孔２の内部において、配管又はケーブル４の外周を発泡体１５によって包囲することができる。   Subsequently, as shown in FIG. 10A, the foam 15 surrounding the pipe or the cable 4 is moved into the through hole 2 (in this embodiment, within the refractory sleeve 3) (moving step). Thereby, as shown in FIG. 7, the outer periphery of the pipe or cable 4 can be surrounded by the foam 15 inside the through hole 2.

このように、本実施形態では、単一の平面視板状の発泡体１５によって配管又はケーブル４を包み込み、発泡体１５を貫通孔２内に移動させるだけで、貫通部を配管又はケーブル４および発泡体１５で密に充填することができる。よって、一度の作業で容易に耐火構造を施工することができる。   As described above, in the present embodiment, the pipe or cable 4 is wrapped by the single plate-like foam 15 in a plan view, and the foam 15 is moved into the through-hole 2. It can be densely filled with the foam 15. Therefore, the fireproof structure can be easily constructed by one operation.

なお、上記の第二の実施形態は以下のように変更可能である。
・第一実施形態と同様、発泡体１５を移動させる際に、発泡体１５を配管又はケーブル４に対してスライドさせてもよいし、配管又はケーブル４を発泡体１５とともに移動させてもよい。また、図９（ｂ）に示すように、発泡体１５の両端１５ａが離間した状態のまま、配管又はケーブル４を包囲した発泡体１５を移動させてもよい。
・あらかじめ耐火性スリーブ３内に配管又はケーブル４を挿通させず、図１０（ｂ）に示すように、発泡体１５を貫通孔２に移動させる際に、配管又はケーブル４を耐火性スリーブ３内に挿通してもよい。
・第一実施形態と同様、発泡体１５の５０％圧縮硬さは４．４ｋＰａ〜１２．７ｋＰａであることが好ましい。この場合、環状に変形された発泡体１５の断面の直径が、貫通孔２又は耐火性スリーブ３の内径より多少大きくても、発泡体１５を貫通孔２又は耐火性スリーブ３に容易に押し込むことができる。また、発泡体１５の引張強さは５０ｋＰａ〜１８０ｋＰａであることが好ましい。これにより、発泡体１５を環状に変形させた場合に、発泡体１５の破損を防止することができる。
・本実施形態では、環状に変形させる前の発泡体１５の正面視の形状が、長方形状であったが、これに限定されず、例えば図１０に示すように、台形状であってもよい。この場合、台形の短い方の底辺（図１０では上低）が環の内周となるように発泡体１５を変形させることにより、発泡体１５にかかる引張応力を低減させることができ、発泡体１５の破損を防止することができる。
・図１２に示すように、耐火性スリーブ３内に移動させた後の発泡体１５は、両端１５ａが接触していなくてもよい。この場合、配管又はケーブル４の外周の一部は発泡体１５によって包囲されず、多少の隙間が生じるが、火災発生時に燃焼により焼失した部分を発泡体１５の膨張成分によって埋めることができる程度の隙間であれば、耐火構造上問題はない。
・本実施形態においても、発泡体１５の外面に接着層を設けてもよい。これにより、発泡体１５が貫通孔２又は耐火性スリーブ３の外にはみ出すことを確実に防止することができる。 The second embodiment can be changed as follows.
As in the first embodiment, when moving the foam 15, the foam 15 may be slid with respect to the pipe or the cable 4, or the pipe or the cable 4 may be moved together with the foam 15. Further, as shown in FIG. 9B, the foam 15 surrounding the pipe or the cable 4 may be moved while the both ends 15a of the foam 15 are separated.
When the foam 15 is moved to the through hole 2 as shown in FIG. 10B without inserting the pipe or the cable 4 into the fire-resistant sleeve 3 in advance, the pipe or the cable 4 is inserted into the fire-resistant sleeve 3. May be inserted.
-As in the first embodiment, the foam 15 preferably has a 50% compression hardness of 4.4 kPa to 12.7 kPa. In this case, the foam 15 can be easily pushed into the through hole 2 or the refractory sleeve 3 even if the cross-sectional diameter of the foam 15 deformed in a ring is slightly larger than the inner diameter of the through hole 2 or the refractory sleeve 3. Can be. Further, the tensile strength of the foam 15 is preferably 50 kPa to 180 kPa. Thereby, when the foam 15 is deformed in a ring shape, it is possible to prevent the foam 15 from being damaged.
In the present embodiment, the shape of the foam 15 in a front view before being deformed into a ring shape is a rectangular shape, but is not limited thereto, and may be, for example, a trapezoidal shape as shown in FIG. . In this case, the tensile stress applied to the foam 15 can be reduced by deforming the foam 15 so that the shorter base (the upper and lower sides in FIG. 10) of the trapezoid is the inner circumference of the ring. 15 can be prevented from being damaged.
As shown in FIG. 12, the foam 15 after being moved into the refractory sleeve 3 does not have to be in contact at both ends 15a. In this case, a part of the outer periphery of the pipe or the cable 4 is not surrounded by the foam 15, and some gaps are generated. If there is a gap, there is no problem in the fireproof structure.
-Also in this embodiment, an adhesive layer may be provided on the outer surface of the foam 15. Thus, it is possible to reliably prevent the foam 15 from protruding outside the through hole 2 or the refractory sleeve 3.

以上、本発明の第一及び第二実施形態について説明したが、本発明はこれらの実施形態に限定されるものではなく、そ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。   The first and second embodiments of the present invention have been described above, but the present invention is not limited to these embodiments, and various changes can be made without departing from the gist of the present invention.

１…壁、２…貫通孔、３…耐火性スリーブ、４…配管又はケーブル、５…発泡体、１５…発泡体、５１…切れ込み、１５１…接触部   DESCRIPTION OF SYMBOLS 1 ... Wall, 2 ... Through-hole, 3 ... Fireproof sleeve, 4 ... Piping or cable, 5 ... Foam, 15 ... Foam, 51 ... Cut, 151 ... Contact part

Claims (6)

配管又はケーブルが挿通された貫通孔を有する、建築物の区画体における貫通部の耐火構造の施工方法において、
前記貫通孔の外側において、熱膨張性黒鉛を含む耐火樹脂組成物からなる発泡体によって、前記配管又はケーブルの外周を包囲する包囲工程と、
前記配管又はケーブルを包囲した発泡体を前記貫通孔内に移動させる移動工程と、
を有することを特徴とする方法。 In the construction method of a fireproof structure of a penetration portion in a building block having a through hole through which a pipe or a cable is inserted,
On the outside of the through hole, a surrounding step of surrounding the outer periphery of the pipe or cable by a foam made of a fire-resistant resin composition containing thermally expandable graphite,
A moving step of moving the foam surrounding the pipe or cable into the through hole,
A method comprising: 前記包囲工程では、
前記発泡体に厚み方向に貫通する切れ込みを形成し、前記配管又はケーブルを前記切れ込みに挟み込むことを特徴とする請求項１に記載の方法。 In the surrounding step,
The method according to claim 1, wherein a cut is formed in the foam in a thickness direction, and the pipe or cable is sandwiched between the cuts. 前記切れ込みの平面視の形状は、前記発泡体の外周面から中心に向かって伸びるＶ字状であることを特徴とする請求項２に記載の方法。   3. The method according to claim 2, wherein the shape of the cut in a plan view is a V-shape extending from the outer peripheral surface of the foam toward the center. 4. 前記発泡体は板状を呈し、
前記包囲工程では、
前記発泡体が環状となるように前記発泡体の両端を互いに接触又は接近させて、前記配管又はケーブルの外周を前記発泡体によって包み込むことを特徴とする請求項１に記載の方法。 The foam has a plate shape,
In the surrounding step,
The method according to claim 1, wherein both ends of the foam are brought into contact with or close to each other so that the foam is annular, and the outer circumference of the pipe or cable is wrapped by the foam. 前記発泡体の５０％圧縮硬さが４．４ｋＰａ〜１２．７ｋＰａであることを特徴とする請求項１〜４のいずれかに記載の方法。   The method according to any one of claims 1 to 4, wherein the foam has a 50% compression hardness of 4.4 kPa to 12.7 kPa. 前記発泡体の引張強さが５０ｋＰａ〜１８０ｋＰａであることを特徴とする請求項１〜５のいずれかに記載の方法。   The method according to any one of claims 1 to 5, wherein the foam has a tensile strength of 50 kPa to 180 kPa.
JP2019204563A 2019-11-12 2019-11-12 Construction method of fireproof structure of penetration part in building compartment Active JP6875490B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019204563A JP6875490B2 (en) 2019-11-12 2019-11-12 Construction method of fireproof structure of penetration part in building compartment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019204563A JP6875490B2 (en) 2019-11-12 2019-11-12 Construction method of fireproof structure of penetration part in building compartment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2015068298A Division JP2016187398A (en) 2015-03-30 2015-03-30 Construction method for fire resistant structure of penetration part in compartment body of building

Publications (2)

Publication Number Publication Date
JP2020022823A true JP2020022823A (en) 2020-02-13
JP6875490B2 JP6875490B2 (en) 2021-05-26

Family

ID=69619251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019204563A Active JP6875490B2 (en) 2019-11-12 2019-11-12 Construction method of fireproof structure of penetration part in building compartment

Country Status (1)

Country Link
JP (1) JP6875490B2 (en)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319800U (en) * 1976-07-29 1978-02-20
JPS594685U (en) * 1982-07-02 1984-01-12 松下電器産業株式会社 Wire holding device
JPH03125972U (en) * 1990-04-02 1991-12-19
JPH0686429A (en) * 1993-02-25 1994-03-25 Tabai Espec Corp Wiring seal plug and wiring seal tool
JPH0743937U (en) * 1993-09-16 1995-10-03 清照 谷合 Fire protection pipe of refrigerant pipe penetrating fire prevention compartment
JP2000002370A (en) * 1998-06-16 2000-01-07 Nitto Kasei Kogyo Kk Gap choking member
JP2000240854A (en) * 1999-02-18 2000-09-08 Inaba Denki Sangyo Co Ltd Thermal expansion material for fire protection
JP2001056284A (en) * 1999-08-20 2001-02-27 Fukushima Industries Corp Measurement hole cap
JP2004329655A (en) * 2003-05-09 2004-11-25 Tosetz Co Ltd Fire preventing section penetrating measure tool, and fire preventing measure construction method
JP2007014045A (en) * 2005-06-28 2007-01-18 Mirai Ind Co Ltd Structure for mounting box on fire-resistant wall
JP2007205472A (en) * 2006-02-02 2007-08-16 Denki Kagaku Kogyo Kk Fire-proof component
JP4033436B2 (en) * 2000-10-03 2008-01-16 未来工業株式会社 Filling method of refractory filler
JP2008095735A (en) * 2006-10-06 2008-04-24 Inaba Denki Sangyo Co Ltd Through-hole blocking tool, through-hole blocking method and heat-resistant blocking member used for this
JP2010255792A (en) * 2009-04-27 2010-11-11 Three M Innovative Properties Co Heat resistant packing member and fire spread preventing construction method
US20130068487A1 (en) * 2011-09-19 2013-03-21 Hilti Aktiengesellschaft Fire protection element
JP2015010322A (en) * 2013-06-26 2015-01-19 ニチアス株式会社 Fire resistive covering structure of pipe insertion part in steel frame beam

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319800U (en) * 1976-07-29 1978-02-20
JPS594685U (en) * 1982-07-02 1984-01-12 松下電器産業株式会社 Wire holding device
JPH03125972U (en) * 1990-04-02 1991-12-19
JPH0686429A (en) * 1993-02-25 1994-03-25 Tabai Espec Corp Wiring seal plug and wiring seal tool
JPH0743937U (en) * 1993-09-16 1995-10-03 清照 谷合 Fire protection pipe of refrigerant pipe penetrating fire prevention compartment
JP2000002370A (en) * 1998-06-16 2000-01-07 Nitto Kasei Kogyo Kk Gap choking member
JP2000240854A (en) * 1999-02-18 2000-09-08 Inaba Denki Sangyo Co Ltd Thermal expansion material for fire protection
JP2001056284A (en) * 1999-08-20 2001-02-27 Fukushima Industries Corp Measurement hole cap
JP4033436B2 (en) * 2000-10-03 2008-01-16 未来工業株式会社 Filling method of refractory filler
JP2004329655A (en) * 2003-05-09 2004-11-25 Tosetz Co Ltd Fire preventing section penetrating measure tool, and fire preventing measure construction method
JP2007014045A (en) * 2005-06-28 2007-01-18 Mirai Ind Co Ltd Structure for mounting box on fire-resistant wall
JP2007205472A (en) * 2006-02-02 2007-08-16 Denki Kagaku Kogyo Kk Fire-proof component
JP2008095735A (en) * 2006-10-06 2008-04-24 Inaba Denki Sangyo Co Ltd Through-hole blocking tool, through-hole blocking method and heat-resistant blocking member used for this
JP2010255792A (en) * 2009-04-27 2010-11-11 Three M Innovative Properties Co Heat resistant packing member and fire spread preventing construction method
US20130068487A1 (en) * 2011-09-19 2013-03-21 Hilti Aktiengesellschaft Fire protection element
JP2015010322A (en) * 2013-06-26 2015-01-19 ニチアス株式会社 Fire resistive covering structure of pipe insertion part in steel frame beam

Also Published As

Publication number Publication date
JP6875490B2 (en) 2021-05-26

Similar Documents

Publication Publication Date Title
EP1714364B1 (en) System and method for sealing an opening in a wall in which at least one transport device such as a cable, conduit or tube has been fed through
JP4860535B2 (en) Fire prevention method
US4901488A (en) Fire/smoke protection structure for a plastic pipe or cable channel portion in a floor or wall
JP4975830B2 (en) Sealing system and method for sealing a space in a conduit between an inner wall of the conduit and at least one pipe or cable extending through the conduit
JP4533006B2 (en) Fire-proof compartment penetration structure and construction method of fire-proof compartment penetration
US8578672B2 (en) Intumescent backer rod
JP6397333B2 (en) Thermally expandable elongate member that can be disposed in through hole of fire prevention compartment, method for forming fire prevention structure of compartment penetration, and fire prevention structure of compartment penetration
KR20110008517A (en) Flame-blocking system and construction method thereof
JP2007154566A (en) Fireproof section through-penetration part structure
JP2016187398A (en) Construction method for fire resistant structure of penetration part in compartment body of building
JP2010255792A (en) Heat resistant packing member and fire spread preventing construction method
JP2007205472A (en) Fire-proof component
JP6895933B2 (en) Fire protection member, fire protection structure and its construction method
JP5189028B2 (en) Fire prevention method
JP6875490B2 (en) Construction method of fireproof structure of penetration part in building compartment
JP6827014B2 (en) Fire prevention member, fire prevention structure and its construction method
JP6978960B2 (en) Fireproof structure, fireproof equipment and closing members
JP5313048B2 (en) Thermally expandable refractory material, fire-resistant molded article, and fire-proof treatment method
JP6378092B2 (en) Thermally expandable sleeve that can be disposed in through hole of fire prevention compartment, method for forming fire prevention structure of compartment penetration, and fire prevention structure of compartment penetration
JP2022008851A (en) Fire resistant structure and fire resistant tool
JP2005113931A (en) Method of closing through-hole end and its structure
JPH0530681U (en) Fireproof structure of the long pipe penetrating part made of combustible material in fireproof compartment
JP2528553Y2 (en) Bell block plug member
JPH0739598A (en) Construction method and device for fire prevention part where pipig gas through
JP5457541B2 (en) Fireproofing member and fireproofing method

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191112

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20191112

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20201013

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201027

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201118

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201208

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210107

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210126

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210301

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210330

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210422

R151 Written notification of patent or utility model registration

Ref document number: 6875490

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE

Ref document number: 6875490

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250