JP6898190B2 - Penetration structure of fire protection compartment wall - Google Patents

Penetration structure of fire protection compartment wall Download PDF

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JP6898190B2
JP6898190B2 JP2017180443A JP2017180443A JP6898190B2 JP 6898190 B2 JP6898190 B2 JP 6898190B2 JP 2017180443 A JP2017180443 A JP 2017180443A JP 2017180443 A JP2017180443 A JP 2017180443A JP 6898190 B2 JP6898190 B2 JP 6898190B2
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refractory
heat insulating
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insulating material
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JP2019056403A (en
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佳志 加藤
佳志 加藤
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Mirai Kogyo KK
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本発明は、流体管が防火区画壁の貫通孔を貫通する箇所に耐火部材が設置されて構成された防火区画壁の貫通構造に関する。 The present invention relates to a penetrating structure of a fire-retardant compartment wall configured by installing a refractory member at a position where a fluid pipe penetrates a through-hole of the fire-retardant compartment wall.

一般に、大型の冷蔵庫に冷媒を供給する冷媒管（流体管）は、金属製であり、断熱材によって覆われて外気から断熱されている。断熱材で覆われた冷媒管を防火区画壁に貫通させるために、防火区画壁には、該防火区画壁を厚み方向に貫通した貫通孔が形成されている。防火区画壁には、貫通孔と断熱材との間の隙間が、防火区画壁の一方側で発生した火災等の火炎、煙、有毒ガスの他方側への侵入経路となることを阻止するための構造が設けられている。 Generally, the refrigerant pipe (fluid pipe) for supplying the refrigerant to a large refrigerator is made of metal and is covered with a heat insulating material to be insulated from the outside air. In order to allow the refrigerant pipe covered with the heat insulating material to penetrate the fireproof partition wall, the fireproof compartment wall is formed with a through hole penetrating the fireproof compartment wall in the thickness direction. In order to prevent the gap between the through hole and the heat insulating material from becoming an intrusion route for flames, smoke, and toxic gas generated on one side of the fireproof partition wall to the other side. Structure is provided.

このような防火区画壁の構造としては、例えば、特許文献１に開示の防火区画貫通部構造が挙げられる。特許文献１の防火区画貫通部構造は、貫通孔を貫通したケーブルや配管の外面に熱膨張性材料からなるテープ状成形体を巻き付け、該テープ状成形体を貫通孔内に配置している。また、ケーブルや配管に固定されたテープ状成形体の外面と、貫通孔の内面との間にモルタル、不燃材料、パテが埋め戻されて防火区画貫通部構造が形成されている。 Examples of the structure of such a fire protection compartment wall include the fire protection compartment penetration structure disclosed in Patent Document 1. In the fireproof compartment penetration structure of Patent Document 1, a tape-shaped molded body made of a heat-expandable material is wound around the outer surface of a cable or pipe penetrating the through hole, and the tape-shaped molded body is arranged in the through hole. In addition, mortar, non-combustible material, and putty are backfilled between the outer surface of the tape-shaped molded body fixed to the cable or pipe and the inner surface of the through hole to form a fireproof compartment penetration structure.

特許文献１の防火区画貫通部構造において、テープ状成形体は、その粘着面がケーブルや配管の外面に貼着されるとともに、テープ状成形体の長手方向両端部同士を重ね合わせて貼着した状態でケーブルや配管に固定されている。 In the fireproof compartment penetration structure of Patent Document 1, the adhesive surface of the tape-shaped molded body is attached to the outer surface of the cable or pipe, and both ends of the tape-shaped molded body in the longitudinal direction are overlapped and attached. It is fixed to the cable or piping in the state.

そして、防火区画壁の一方側で火災等が発生し、ケーブルや配管が熱変形したり、焼失しても、火災等の熱によってテープ状成形体が焼失したケーブルや配管に向かって膨張し、焼失によって生じた隙間を閉塞することで、火炎、煙、有毒ガスが、防火区画壁の他方側へ到達することを抑止する。 Then, even if a fire or the like occurs on one side of the fire-prevention section wall and the cables or pipes are thermally deformed or burnt, the tape-shaped molded body expands toward the burned cables or pipes due to the heat of the fire or the like. By closing the gap created by burning, flames, smoke and toxic gases are prevented from reaching the other side of the fire compartment wall.

特開２００３−１４８６５８号公報Japanese Unexamined Patent Publication No. 2003-148658

上記のように、断熱材で覆われた冷媒管が貫通する防火区画壁において、特許文献１のテープ状成形体を断熱材に巻き付けて貫通構造を形成することがある。しかし、一般に、断熱材は独立した微細な気泡を多数有しており、火災等で発生した熱によって加熱されると、気泡の膨張によって膨張してしまう。特に、断熱効果を高めた断熱材は、その膨張量が非常に大きい。また、テープ状成形体の端部同士を貼り付けた粘着面が熱によって融けてしまう。すると、テープ状成形体の長手方向両端部同士を貼り合わせた状態が解除され、テープ状成形体を、隙間を閉塞する方向に膨張させることができなくなり、耐火性能が発揮できなくなる虞がある。 As described above, in the fireproof partition wall through which the refrigerant pipe covered with the heat insulating material penetrates, the tape-shaped molded product of Patent Document 1 may be wound around the heat insulating material to form a penetrating structure. However, in general, the heat insulating material has a large number of independent fine bubbles, and when heated by heat generated by a fire or the like, the heat insulating material expands due to the expansion of the bubbles. In particular, the heat insulating material having an enhanced heat insulating effect has a very large expansion amount. In addition, the adhesive surfaces on which the ends of the tape-shaped molded product are attached to each other are melted by heat. Then, the state in which both ends of the tape-shaped molded body are bonded to each other in the longitudinal direction is released, the tape-shaped molded body cannot be expanded in the direction of closing the gap, and there is a risk that the fire resistance performance cannot be exhibited.

本発明の目的は、断熱材が貫通する防火区画壁であっても耐火性能を発揮できる防火区画壁の貫通構造を提供することにある。 An object of the present invention is to provide a penetration structure of a fire protection compartment wall capable of exhibiting fire resistance even if the fire protection compartment wall is penetrated by a heat insulating material.

上記問題点を解決するための防火区画壁の貫通構造は、独立発泡材製の断熱材により覆われた金属製の流体管が防火区画壁の貫通孔を貫通する箇所に耐火部材が設置されて構成された防火区画壁の貫通構造であって、前記耐火部材は、可撓性を有する矩形シート状の基材と、前記基材の一面に積層された矩形状の熱膨張性耐火材層を有し、前記耐火部材において、前記基材の一縁の延びる方向を第１方向とし、前記一縁に直交した他縁の延びる方向を第２方向とし、前記耐火部材は、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態で前記断熱材に巻き付けられ、前記基材によって前記断熱材が囲繞されるとともに、前記基材と前記断熱材との間に、該断熱材を囲繞する状態で前記熱膨張性耐火材層が介在し、前記第２方向の一端側に位置した、前記基材及び前記熱膨張性耐火材層の一部が挿入部として前記貫通孔に挿入されるとともに、前記挿入部よりも前記耐火部材の第２方向他端側は、露出部として前記防火区画壁の外側に露出し、前記貫通孔の内面と前記耐火部材の外面との間が充填材によって埋められ、前記露出部は、前記防火区画壁から離れた位置にて、前記熱膨張性耐火材層を覆う前記基材を外側から囲む金属製の締結部材によって前記第１方向に締め付けられ、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態が維持されていることを要旨とする。 In the penetrating structure of the fireproof compartment wall for solving the above problems, a fireproof member is installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates the through hole of the fireproof compartment wall. It is a through structure of the constructed refractory partition wall, and the refractory member comprises a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material. In the refractory member, the extending direction of one edge of the base material is the first direction, the extending direction of the other edge orthogonal to the one edge is the second direction, and the refractory member is in the first direction. The ends located at both ends are wound around the heat insulating material in a state of being abutted or overlapped with each other, the heat insulating material is surrounded by the base material, and between the base material and the heat insulating material, The heat-expandable refractory layer is interposed in a state surrounding the heat insulating material, and the base material and a part of the heat-expandable refractory layer located on one end side in the second direction penetrate through the heat-insulating material as an insertion portion. Upon being inserted into the hole, the other end side of the refractory member in the second direction from the insertion portion is exposed to the outside of the fireproof partition wall as an exposed portion, and the inner surface of the through hole and the outer surface of the refractory member The space is filled with a filler, and the exposed portion is located in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the refractory partition wall. It is a gist that the end portions located at both ends of the first direction are abutted against each other or overlapped with each other.

また、防火区画壁の貫通構造について、前記露出部において、前記第２方向に沿って前記締結部材よりも前記防火区画壁から離れた箇所は、前記基材を外側から囲む帯状又は紐状の補助用締結部材によって前記第１方向に締め付けられていてもよい。 Further, regarding the penetrating structure of the fire protection compartment wall, in the exposed portion, a portion of the exposed portion that is farther from the fire protection compartment wall than the fastening member along the second direction is a band-shaped or string-shaped auxiliary that surrounds the base material from the outside. It may be tightened in the first direction by the fastening member.

また、防火区画壁の貫通構造について、前記第２方向への前記基材の長さは、前記第２方向への前記熱膨張性耐火材層の長さより長く、前記耐火部材は、前記第２方向の他端側に前記熱膨張性耐火材層よりもはみ出した前記基材によって形成された延出部を有し、前記補助用締結部材は、前記延出部を前記第１方向に締め付けていてもよい。 Further, regarding the penetrating structure of the fireproof partition wall, the length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the refractory member is the second. The other end side in the direction has an extension portion formed by the base material protruding from the heat-expandable refractory layer, and the auxiliary fastening member tightens the extension portion in the first direction. You may.

また、防火区画壁の貫通構造について、前記第２方向への前記基材の長さは、前記第２方向への前記熱膨張性耐火材層の長さより長く、前記耐火部材は、前記第２方向の他端側に前記熱膨張性耐火材層よりもはみ出した前記基材によって形成された延出部を有し、前記延出部は粘着部材によって前記断熱材に貼り付けられていてもよい。 Further, regarding the penetrating structure of the fireproof partition wall, the length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the refractory member is the second. An extension portion formed by the base material protruding from the heat-expandable refractory layer may be provided on the other end side in the direction, and the extension portion may be attached to the heat insulating material by an adhesive member. ..

また、防火区画壁の貫通構造について、前記耐火部材は、前記防火区画壁の厚み方向の両側に設置されているのが好ましい。 Further, regarding the penetrating structure of the fireproof compartment wall, it is preferable that the fireproof members are installed on both sides in the thickness direction of the fireproof compartment wall.

本発明によれば、断熱材が貫通する防火区画壁であっても耐火性能を発揮できる。 According to the present invention, fire resistance can be exhibited even in a fire protection compartment wall through which a heat insulating material penetrates.

防火区画壁の貫通構造を示す断面図。A cross-sectional view showing a penetrating structure of a fire protection compartment wall. 防火区画壁の貫通構造を示す拡大断面図。An enlarged cross-sectional view showing a penetrating structure of a fire protection compartment wall. 耐火部材を展開して示す斜視図。The perspective view which shows the refractory member unfolded. 耐火部材を示す斜視図。The perspective view which shows the refractory member. 耐火部材を示す図４の５−５線断面図。FIG. 4 is a cross-sectional view taken along line 5-5 of FIG. 4 showing a refractory member. 防火区画壁に冷媒管及び断熱材が配設された状態を示す斜視図。A perspective view showing a state in which a refrigerant pipe and a heat insulating material are arranged on a fireproof partition wall. 断熱材に耐火部材を巻き付けた状態を示す斜視図。The perspective view which shows the state which the refractory member was wound around the heat insulating material. 締結部材によって耐火部材を締め付けた状態を示す斜視図。The perspective view which shows the state which tightened the refractory member by the fastening member. 粘着シートによって延出部を断熱材に貼り付けた状態を示す断面図。A cross-sectional view showing a state in which the extension portion is attached to a heat insulating material by an adhesive sheet.

以下、防火区画壁の貫通構造を具体化した一実施形態を図１〜図８にしたがって説明する。
図１又は図２に示すように、コンクリート製の防火区画壁Ｗには、円孔状の貫通孔Ｗａが防火区画壁Ｗを厚み方向に貫通して形成されている。この貫通孔Ｗａには、金属により円筒状に形成された流体管Ｓが挿通されている。流体管Ｓには、大型冷蔵庫に供給される冷媒が流通している。 Hereinafter, an embodiment embodying the penetrating structure of the fire protection compartment wall will be described with reference to FIGS. 1 to 8.
As shown in FIG. 1 or 2, the concrete fireproof partition wall W is formed with a circular through hole Wa penetrating the fireproof partition wall W in the thickness direction. A fluid tube S formed in a cylindrical shape by metal is inserted through the through hole Wa. The refrigerant supplied to the large refrigerator is distributed in the fluid pipe S.

流体管Ｓは円筒状の断熱材１０によって覆われている。断熱材１０により、流体管Ｓ内の冷媒が外気から断熱されている。断熱材１０としては、例えば、軽量かつ柔軟な特殊エラストマ（ＥＰＤＭ合成ゴム）製のものがある。このような断熱材１０は、独立した微細な気泡を多数有する独立発泡材製であり、独立気泡によって優れた断熱性を有する。大型冷蔵庫の冷蔵機能の低下を抑制するためには、冷媒の温度上昇を抑えることが必要であり、断熱材１０としては断熱効果を高めたものが使用されている。独立発泡材製の断熱材１０においては、断熱効果を高めると、独立気泡がより微細になり、かつ気泡をより多くした構造となる。 The fluid tube S is covered with a cylindrical heat insulating material 10. The heat insulating material 10 insulates the refrigerant in the fluid pipe S from the outside air. As the heat insulating material 10, for example, there is a material made of a special elastomer (EPDM synthetic rubber) that is lightweight and flexible. Such a heat insulating material 10 is made of an independent foaming material having a large number of independent fine bubbles, and has excellent heat insulating properties due to the closed cells. In order to suppress the deterioration of the refrigerating function of the large refrigerator, it is necessary to suppress the temperature rise of the refrigerant, and as the heat insulating material 10, a material having an enhanced heat insulating effect is used. In the heat insulating material 10 made of the independent foaming material, when the heat insulating effect is enhanced, the closed cells become finer and the structure has more bubbles.

次に、防火区画壁Ｗの貫通構造を形成するため、貫通孔Ｗａに配置される耐火部材１１について説明する。
まず、断熱材１０に巻き付けられる前の耐火部材１１について説明する。 Next, the fireproof member 11 arranged in the through hole Wa in order to form the through structure of the fireproof partition wall W will be described.
First, the refractory member 11 before being wound around the heat insulating material 10 will be described.

図２又は図３に示すように、耐火部材１１は、矩形シート状である。耐火部材１１は、矩形シート状の基材１２と、基材１２の一面を覆う状態に積層された矩形状の熱膨張性耐火材層２２と、熱膨張性耐火材層２２の一面を覆う状態に積層されたフィルム３２とを備える。耐火部材１１は、基材１２と、熱膨張性耐火材層２２と、フィルム３２の３層構造を一部に有する。 As shown in FIG. 2 or 3, the refractory member 11 has a rectangular sheet shape. The fireproof member 11 covers a rectangular sheet-shaped base material 12, a rectangular heat-expandable refractory layer 22 laminated so as to cover one surface of the base material 12, and one surface of the heat-expandable refractory layer 22. The film 32 laminated to the above is provided. The refractory member 11 has a three-layer structure of a base material 12, a heat-expandable refractory layer 22, and a film 32.

基材１２は、可撓性を有する。また、基材１２は、ガラス繊維強化複合材製である。基材１２は、ガラス繊維を平織り、綾織り、朱子織り等して形成されたガラスクロスにマトリックス樹脂を複合化させて形成されている。ガラス繊維は難燃性の高い材料であることから、基材１２は難燃性である。 The base material 12 has flexibility. The base material 12 is made of a glass fiber reinforced composite material. The base material 12 is formed by compounding a matrix resin with a glass cloth formed by plain weave, twill weave, satin weave, or the like of glass fibers. Since the glass fiber is a highly flame-retardant material, the base material 12 is flame-retardant.

基材１２は、互いに平行な一対の基材長縁１２ａと、一対の基材長縁１２ａの一端同士又は他端同士を繋ぐ一対の基材短縁１２ｂを備える。基材１２の一縁としての基材長縁１２ａの延びる方向は基材１２の長手方向であり、基材１２の他縁としての基材短縁１２ｂの延びる方向は基材１２の短手方向である。本実施形態では、基材１２の長手方向Ｙ１を第１方向とし、基材１２の短手方向Ｙ２を、第１方向に直交した第２方向とする。基材１２の長手方向Ｙ１は、耐火部材１１の長手方向に一致し、基材１２の短手方向Ｙ２は、耐火部材１１の短手方向に一致する。よって、耐火部材１１の長手方向を長手方向Ｙ１で示し、耐火部材１１の短手方向を短手方向Ｙ２で示す。 The base material 12 includes a pair of long base material edges 12a parallel to each other and a pair of short base material short edges 12b connecting one ends or the other ends of the pair of long base material edges 12a. The extending direction of the long base material 12a as one edge of the base material 12 is the longitudinal direction of the base material 12, and the extending direction of the short base material 12b as the other edge of the base material 12 is the lateral direction of the base material 12. Is. In the present embodiment, the longitudinal direction Y1 of the base material 12 is set as the first direction, and the lateral direction Y2 of the base material 12 is set as the second direction orthogonal to the first direction. The longitudinal direction Y1 of the base material 12 coincides with the longitudinal direction of the refractory member 11, and the lateral direction Y2 of the base material 12 coincides with the lateral direction of the refractory member 11. Therefore, the longitudinal direction of the refractory member 11 is indicated by the longitudinal direction Y1, and the lateral direction of the refractory member 11 is indicated by the lateral direction Y2.

熱膨張性耐火材層２２は、熱膨張性耐熱パテ（膨張黒鉛・石油ワックス混入ブチル系ゴム）製である。図２に示すように、熱膨張性耐火材層２２は、粘着性を有し、基材１２の一面に貼着されている。矩形状の熱膨張性耐火材層２２は、互いに平行な一対の長縁２２ａと、一対の長縁２２ａの一端同士又は他端同士を繋ぐ一対の短縁２２ｂを備える（図３参照）。一対の長縁２２ａは、基材１２の長手方向Ｙ１に延び、一対の短縁２２ｂは、基材１２の短手方向Ｙ２に延びる。短手方向Ｙ２への基材短縁１２ｂの長さは、短手方向Ｙ２への熱膨張性耐火材層２２の短縁２２ｂの長さより長い。 The heat-expandable refractory material layer 22 is made of a heat-expandable heat-resistant putty (butyl rubber mixed with expanded graphite and petroleum wax). As shown in FIG. 2, the heat-expandable refractory layer 22 has adhesiveness and is attached to one surface of the base material 12. The rectangular heat-expandable refractory layer 22 includes a pair of long edges 22a parallel to each other and a pair of short edges 22b connecting one ends or the other ends of the pair of long edges 22a (see FIG. 3). The pair of long edges 22a extend in the longitudinal direction Y1 of the base material 12, and the pair of short edges 22b extend in the lateral direction Y2 of the base material 12. The length of the short edge 12b of the base material in the lateral direction Y2 is longer than the length of the short edge 22b of the heat-expandable refractory layer 22 in the lateral direction Y2.

熱膨張性耐火材層２２の一方の長縁２２ａは、一方の基材長縁１２ａから他方の基材長縁１２ａ側に離れた位置にある。一方、熱膨張性耐火材層２２の他方の長縁２２ａは、他方の基材長縁１２ａよりも短手方向Ｙ２に沿って内側にある。耐火部材１１は、熱膨張性耐火材層２２の他方の長縁２２ａからはみ出した部分に、基材１２の延出部１３を備える。延出部１３は、基材１２そのもので形成されている。 One long edge 22a of the heat-expandable refractory layer 22 is located at a position separated from one long base material edge 12a toward the other base material long edge 12a. On the other hand, the other long edge 22a of the heat-expandable refractory layer 22 is inside the other long edge 12a of the base material along the lateral direction Y2. The refractory member 11 includes an extending portion 13 of the base material 12 at a portion of the heat-expandable refractory material layer 22 protruding from the other long edge 22a. The extending portion 13 is formed of the base material 12 itself.

図３に示すように、フィルム３２は、熱膨張性耐火材層２２に貼着されている。フィルム３２は、互いに平行な一対のフィルム長縁３２ａと、一対のフィルム長縁３２ａの一端同士又は他端同士を繋ぐ一対のフィルム短縁３２ｂを備える。短手方向Ｙ２へのフィルム短縁３２ｂの長さは、短手方向Ｙ２への熱膨張性耐火材層２２の短縁２２ｂの長さより長く、基材１２の短手方向Ｙ２への基材短縁１２ｂの長さより短い。 As shown in FIG. 3, the film 32 is attached to the heat-expandable refractory material layer 22. The film 32 includes a pair of film long edges 32a parallel to each other and a pair of film short edges 32b connecting one ends or the other ends of the pair of film long edges 32a. The length of the film short edge 32b in the lateral direction Y2 is longer than the length of the short edge 22b of the heat-expandable refractory layer 22 in the lateral direction Y2, and the substrate short length of the substrate 12 in the lateral direction Y2. Shorter than the length of the edge 12b.

フィルム３２の一方のフィルム長縁３２ａ側は、熱膨張性耐火材層２２の一方の長縁２２ａからはみ出している。一方、他方のフィルム長縁３２ａ側は、熱膨張性耐火材層２２の他方の長縁２２ａと面一である。なお、他方のフィルム長縁３２ａは、熱膨張性耐火材層２２の長縁２２ａからはみ出していてもよい。 One of the long edges 32a of the film 32 protrudes from one long edge 22a of the heat-expandable refractory layer 22. On the other hand, the other long edge 32a side of the film is flush with the other long edge 22a of the heat-expandable refractory layer 22. The other long edge 32a of the film may protrude from the long edge 22a of the heat-expandable refractory layer 22.

基材１２の長手方向Ｙ１の両端側では、それぞれ基材短縁１２ｂと、熱膨張性耐火材層２２の短縁２２ｂと、フィルム短縁３２ｂとが面一である。耐火部材１１は、基材短縁１２ｂと、短縁２２ｂと、フィルム短縁３２ｂとが揃った面よりなる、合わせ面１７を長手方向Ｙ１の両端部に備える。また、耐火部材１１は、長手方向Ｙ１の両端部に、合わせ面１７を含む重合端部１８を備える。重合端部１８は、合わせ面１７から長手方向Ｙ１へ僅かに内側の部分までである。 On both ends of the base material 12 in the longitudinal direction Y1, the short edge 12b of the base material, the short edge 22b of the heat-expandable refractory layer 22, and the short edge 32b of the film are flush with each other. The refractory member 11 is provided with mating surfaces 17 at both ends in the longitudinal direction Y1, which are formed of surfaces in which the short edge 12b of the base material, the short edge 22b, and the short edge 32b of the film are aligned. Further, the refractory member 11 is provided with a polymerization end portion 18 including a mating surface 17 at both ends in the longitudinal direction Y1. The polymerization end portion 18 extends from the mating surface 17 to a portion slightly inside in the longitudinal direction Y1.

また、耐火部材１１は、短手方向Ｙ２の一端側に第１端部１５を備える。第１端部１５は、一方の基材長縁１２ａ、一方の長縁２２ａ、及び一方のフィルム長縁３２ａが位置する端部である。耐火部材１１は、短手方向Ｙ２の他端側に第２端部１６を備える。第２端部１６は、他方の基材長縁１２ａが位置する端部である。 Further, the refractory member 11 includes a first end portion 15 on one end side in the lateral direction Y2. The first end portion 15 is an end portion where one long edge 12a of the base material, one long edge 22a, and one long edge 32a of the film are located. The refractory member 11 includes a second end portion 16 on the other end side in the lateral direction Y2. The second end portion 16 is an end portion where the other long edge 12a of the base material is located.

耐火部材１１の長手方向Ｙ１への長さは、断熱材１０の周長と同じ又は僅かに長い。図８に示すように、耐火部材１１を断熱材１０の周面に沿って巻き付けたとき、耐火部材１１の長手方向Ｙ１両端部の合わせ面１７を互いに突き合わせ、接触させることができる。詳細には、耐火部材１１の長手方向Ｙ１両端に位置する基材短縁１２ｂ同士、熱膨張性耐火材層２２の短縁２２ｂ同士、及びフィルム短縁３２ｂ同士を突き合わせ、接触させることができる。耐火部材１１の短手方向Ｙ２への長さは、防火区画壁Ｗの厚みより長い。 The length of the refractory member 11 in the longitudinal direction Y1 is the same as or slightly longer than the peripheral length of the heat insulating material 10. As shown in FIG. 8, when the refractory member 11 is wound along the peripheral surface of the heat insulating material 10, the mating surfaces 17 at both ends of the fireproof member 11 in the longitudinal direction Y1 can be brought into contact with each other. Specifically, the short edges 12b of the base material located at both ends of the fireproof member 11 in the longitudinal direction Y1, the short edges 22b of the heat-expandable refractory layer 22, and the short edges 32b of the film can be brought into contact with each other. The length of the fireproof member 11 in the lateral direction Y2 is longer than the thickness of the fireproof partition wall W.

図５に示すように、耐火部材１１は、フィルム３２が断熱材１０の外周面に接触するように断熱材１０に巻き付けて使用される。断熱材１０に巻き付けられた耐火部材１１において、基材１２は、断熱材１０を囲繞する。また、熱膨張性耐火材層２２は、フィルム３２を介して、基材１２と、断熱材１０の間に介在する。 As shown in FIG. 5, the fireproof member 11 is used by winding the film 32 around the heat insulating material 10 so that the film 32 comes into contact with the outer peripheral surface of the heat insulating material 10. In the refractory member 11 wound around the heat insulating material 10, the base material 12 surrounds the heat insulating material 10. Further, the heat-expandable refractory material layer 22 is interposed between the base material 12 and the heat insulating material 10 via the film 32.

図２又は図４に示すように、上記構成の耐火部材１１は、締結部材４０及び補助用締結部材４１によって周方向へ締め付けられることで、断熱材１０に巻き付けられる。締結部材４０は、耐火部材１１を基材１２の外側から囲む状態で耐火部材１１を締め付け、耐火部材１１に対し、縮径方向への力を付与する。また、締結部材４０は、耐火部材１１において、熱膨張性耐火材層２２の存在する部分を締め付け、補助用締結部材４１は、熱膨張性耐火材層２２の存在しない延出部１３を締め付ける。 As shown in FIG. 2 or 4, the refractory member 11 having the above configuration is wound around the heat insulating material 10 by being tightened in the circumferential direction by the fastening member 40 and the auxiliary fastening member 41. The fastening member 40 tightens the refractory member 11 in a state of surrounding the refractory member 11 from the outside of the base material 12, and applies a force to the refractory member 11 in the diameter reduction direction. Further, the fastening member 40 tightens the portion of the refractory member 11 in which the heat-expandable refractory layer 22 exists, and the auxiliary fastening member 41 tightens the extension portion 13 in which the heat-expandable refractory layer 22 does not exist.

締結部材４０及び補助用締結部材４１は、鋼線をポリエチレン樹脂等の樹脂で被覆した紐状のバインド線である。締結部材４０及び補助用締結部材４１は、鋼線を含むため、熱によって長手方向にほとんど延びない。締結部材４０及び補助用締結部材４１の長さは、耐火部材１１の長手方向Ｙ１への長さより長い。 The fastening member 40 and the auxiliary fastening member 41 are string-shaped bind wires in which a steel wire is coated with a resin such as polyethylene resin. Since the fastening member 40 and the auxiliary fastening member 41 include steel wires, they hardly extend in the longitudinal direction due to heat. The length of the fastening member 40 and the auxiliary fastening member 41 is longer than the length of the refractory member 11 in the longitudinal direction Y1.

図４又は図５に示すように、断熱材１０の周面に耐火部材１１を巻き付け、耐火部材１１の合わせ面１７同士を突き合わせた状態では、耐火部材１１の周面に締結部材４０及び補助用締結部材４１を沿わせると、締結部材４０及び補助用締結部材４１の長手方向の両端部が交差する部分より先に余剰部４０ａ，４１ａが形成される。 As shown in FIG. 4 or 5, in a state where the refractory member 11 is wound around the peripheral surface of the heat insulating material 10 and the mating surfaces 17 of the refractory member 11 are butted against each other, the fastening member 40 and the auxiliary are used on the peripheral surface of the refractory member 11. When the fastening member 41 is aligned, the surplus portions 40a and 41a are formed before the portions where both ends of the fastening member 40 and the auxiliary fastening member 41 in the longitudinal direction intersect.

そして、余剰部４０ａ，４１ａ同士を巻締めることで、締結部材４０及び補助用締結部材４１によって耐火部材１１を締め付け、耐火部材１１に対し、縮径方向への力を付与できる。また、締結部材４０及び補助用締結部材４１によって、合わせ面１７同士を、短手方向Ｙ２全体に亘って突き合わせた状態が維持される。なお、本実施形態において、合わせ面１７同士を突き合わせ、接触させた状態とは、基材１２の基材短縁１２ｂ同士、熱膨張性耐火材層２２の短縁２２ｂ同士、及びフィルム短縁３２ｂ同士を突き合わせ、接触させた状態である。 Then, by winding the surplus portions 40a and 41a together, the refractory member 11 is tightened by the fastening member 40 and the auxiliary fastening member 41, and a force can be applied to the refractory member 11 in the diameter reduction direction. Further, the fastening member 40 and the auxiliary fastening member 41 maintain a state in which the mating surfaces 17 are butted against each other over the entire lateral direction Y2. In the present embodiment, the states in which the mating surfaces 17 are butted against each other and brought into contact with each other are the short edges 12b of the base materials 12, the short edges 22b of the heat-expandable refractory layer 22, and the short edges 32b of the film. It is in a state where they are butted against each other and brought into contact with each other.

次に、耐火部材１１を用いた防火区画壁Ｗの貫通構造について説明する。
図２に示すように、防火区画壁Ｗの貫通構造は、断熱材１０に耐火部材１１を巻き付けて形成されている。 Next, a penetrating structure of the fireproof partition wall W using the fireproof member 11 will be described.
As shown in FIG. 2, the penetrating structure of the fireproof partition wall W is formed by winding the fireproof member 11 around the heat insulating material 10.

断熱材１０に巻き付けられた耐火部材１１は、締結部材４０及び補助用締結部材４１の余剰部４０ａ，４１ａ同士を巻締めることで、断熱材１０の外周面に押し付けられている。詳細には、締結部材４０による締め付けにより、耐火部材１１の最内層となるフィルム３２が断熱材１０の外周面に密接し、補助用締結部材４１による締め付けにより、延出部１３（基材１２）が断熱材１０の外周面に密接している。このため、耐火部材１１の内周面と、断熱材１０の外周面との間に隙間がほとんど無い。特に、延出部１３については、パテ製の熱膨張性耐火材層２２が存在しないため、断熱材１０に対する延出部１３の密接度が高い。 The refractory member 11 wound around the heat insulating material 10 is pressed against the outer peripheral surface of the heat insulating material 10 by winding the surplus portions 40a and 41a of the fastening member 40 and the auxiliary fastening member 41 together. Specifically, the film 32, which is the innermost layer of the refractory member 11, is brought into close contact with the outer peripheral surface of the heat insulating material 10 by tightening with the fastening member 40, and the extending portion 13 (base material 12) is tightened with the auxiliary fastening member 41. Is in close contact with the outer peripheral surface of the heat insulating material 10. Therefore, there is almost no gap between the inner peripheral surface of the refractory member 11 and the outer peripheral surface of the heat insulating material 10. In particular, since the heat-expandable refractory layer 22 made of putty does not exist in the extension portion 13, the degree of closeness of the extension portion 13 to the heat insulating material 10 is high.

また、図８に示すように、耐火部材１１の周方向においては、締結部材４０及び補助用締結部材４１により、耐火部材１１の合わせ面１７同士が突き合わされた状態が維持され、合わせ面１７同士の間には、短手方向Ｙ２全体に亘って隙間がない。 Further, as shown in FIG. 8, in the circumferential direction of the refractory member 11, the fastening member 40 and the auxiliary fastening member 41 maintain a state in which the mating surfaces 17 of the refractory member 11 are abutted against each other, and the mating surfaces 17 are brought together. There is no gap between them over the entire lateral direction Y2.

図２に示すように、耐火部材１１の第１端部１５は、挿入部として貫通孔Ｗａに挿入されている。耐火部材１１において、短手方向Ｙ２に沿った第１端部１５よりも第２端部１６側は、貫通孔Ｗａの外に位置している。以降、耐火部材１１において、貫通孔Ｗａの外に露出した部位を露出部Ｒとする。締結部材４０は、露出部Ｒのうち、熱膨張性耐火材層２２が存在する部位に巻き付けられ、補助用締結部材４１は、熱膨張性耐火材層２２の存在しない延出部１３に巻き付けられている。露出部Ｒは、防火区画壁Ｗの外側で断熱材１０の一部を全周に亘って被覆している。 As shown in FIG. 2, the first end portion 15 of the refractory member 11 is inserted into the through hole Wa as an insertion portion. In the refractory member 11, the second end 16 side of the first end 15 along the lateral direction Y2 is located outside the through hole Wa. Hereinafter, in the refractory member 11, the portion exposed to the outside of the through hole Wa will be referred to as an exposed portion R. The fastening member 40 is wound around the exposed portion R where the heat-expandable refractory layer 22 exists, and the auxiliary fastening member 41 is wound around the extension portion 13 where the heat-expandable refractory layer 22 does not exist. ing. The exposed portion R covers a part of the heat insulating material 10 on the outside of the fireproof partition wall W over the entire circumference.

締結部材４０を巻き付ける位置、すなわち、防火区画壁Ｗの外面から締結部材４０までの距離は、断熱材１０の膨張率によって決められる。膨張率が大きい断熱材１０ほど、耐火部材１１の合わせ面１７が突き合わされた状態を維持するためには、締結部材４０は防火区画壁Ｗに近い方が好ましい。一方、膨張率が小さい断熱材１０ほど、締結部材４０は防火区画壁Ｗから離れていても、耐火部材１１の合わせ面１７を突き合わせた状態を維持できる。本実施形態では、防火区画壁Ｗの外面からの露出部Ｒの長さをＬとすると、締結部材４０は、露出部Ｒの長さＬの半分となる位置よりも防火区画壁Ｗ寄りに位置している。 The position around which the fastening member 40 is wound, that is, the distance from the outer surface of the fireproof partition wall W to the fastening member 40 is determined by the expansion coefficient of the heat insulating material 10. In order to maintain the state in which the mating surfaces 17 of the refractory members 11 are abutted against each other as the heat insulating material 10 has a larger expansion rate, it is preferable that the fastening member 40 is closer to the refractory partition wall W. On the other hand, the smaller the expansion rate of the heat insulating material 10, the more the fastening member 40 can maintain the state in which the mating surfaces 17 of the refractory members 11 are butted against each other even if the fastening member 40 is separated from the fireproof partition wall W. In the present embodiment, assuming that the length of the exposed portion R from the outer surface of the fireproof partition wall W is L, the fastening member 40 is located closer to the fireproof partition wall W than the position where the length L of the exposed portion R is half. doing.

貫通孔Ｗａ内において、耐火部材１１の第１端部１５（挿入部）の外周面と、この外周面に対向した貫通孔Ｗａの内周面との隙間全体には充填材としてのモルタル１９が充填されている。なお、充填材としては、モルタル１９以外にも耐熱パテが挙げられる。 In the through hole Wa, a mortar 19 as a filler is provided in the entire gap between the outer peripheral surface of the first end portion 15 (insertion portion) of the refractory member 11 and the inner peripheral surface of the through hole Wa facing the outer peripheral surface. It is filled. Examples of the filler include heat-resistant putty other than mortar 19.

次に、防火区画壁Ｗの貫通構造の形成方法を説明する。
まず、図６に示すように、建物の建築時に、防火区画壁Ｗに貫通孔Ｗａが形成される。貫通孔Ｗａには流体管Ｓが挿通される。流体管Ｓは断熱材１０で覆われる。次に、図７に示すように、貫通孔Ｗａより外に位置する断熱材１０の外周面に対し、耐火部材１１のフィルム３２が面するように耐火部材１１を配置する。このとき、耐火部材１１の第１端部１５側が防火区画壁Ｗ側に位置し、第２端部１６側が防火区画壁Ｗより離れた側に位置するように耐火部材１１を配置する。 Next, a method of forming a penetrating structure of the fireproof partition wall W will be described.
First, as shown in FIG. 6, a through hole Wa is formed in the fire protection partition wall W during the construction of the building. A fluid tube S is inserted through the through hole Wa. The fluid tube S is covered with the heat insulating material 10. Next, as shown in FIG. 7, the refractory member 11 is arranged so that the film 32 of the refractory member 11 faces the outer peripheral surface of the heat insulating material 10 located outside the through hole Wa. At this time, the fireproof member 11 is arranged so that the first end 15 side of the fireproof member 11 is located on the fireproof partition wall W side and the second end 16 side is located on the side away from the fireproof partition wall W.

次に、断熱材１０の周方向に沿って耐火部材１１を変形させ、ほぼ円筒状に整形する。そして、断熱材１０に沿って耐火部材１１をスライド移動させ、第１端部１５を防火区画壁Ｗの貫通孔Ｗａに挿入する。耐火部材１１の第１端部１５を貫通孔Ｗａに挿入した結果、防火区画壁Ｗの外側には耐火部材１１の露出部Ｒが形成される。 Next, the refractory member 11 is deformed along the circumferential direction of the heat insulating material 10 to form a substantially cylindrical shape. Then, the fireproof member 11 is slid along the heat insulating material 10 and the first end portion 15 is inserted into the through hole Wa of the fireproof partition wall W. As a result of inserting the first end portion 15 of the fireproof member 11 into the through hole Wa, an exposed portion R of the fireproof member 11 is formed on the outside of the fireproof partition wall W.

次に、図８に示すように、耐火部材１１の合わせ面１７同士を突き合わせた状態で、露出部Ｒにおいて、熱膨張性耐火材層２２を覆った基材１２を外側から締結部材４０で囲み、締結部材４０を耐火部材１１に巻き付けるとともに、交差させて余剰部４０ａを形成する。その後、一対の余剰部４０ａを巻締める。 Next, as shown in FIG. 8, in a state where the mating surfaces 17 of the refractory members 11 are butted against each other, the base material 12 covering the heat-expandable refractory material layer 22 is surrounded by the fastening member 40 from the outside in the exposed portion R. , The fastening member 40 is wound around the refractory member 11 and crossed to form a surplus portion 40a. After that, the pair of surplus portions 40a are wound up.

同様に、露出部Ｒにおいて、延出部１３を外側から補助用締結部材４１で囲み、その補助用締結部材４１を耐火部材１１に巻き付けるとともに、交差させて余剰部４１ａを形成する。その後、一対の余剰部４１ａを巻締める。その結果、耐火部材１１が断熱材１０に巻き付けられる。 Similarly, in the exposed portion R, the extension portion 13 is surrounded by the auxiliary fastening member 41 from the outside, and the auxiliary fastening member 41 is wound around the refractory member 11 and crossed to form the surplus portion 41a. After that, the pair of surplus portions 41a are wound tightly. As a result, the refractory member 11 is wound around the heat insulating material 10.

締結部材４０及び補助用締結部材４１により、耐火部材１１の合わせ面１７が突き合わされた状態に維持されるとともに、耐火部材１１の内周面を構成するフィルム３２及び延出部１３が断熱材１０の外周面に密接し、耐火部材１１の内周面と、断熱材１０の外周面との間から隙間がほとんどなくなる。 The fastening member 40 and the auxiliary fastening member 41 maintain the mating surfaces 17 of the refractory member 11 in an abutted state, and the film 32 and the extending portion 13 constituting the inner peripheral surface of the refractory member 11 are the heat insulating material 10. It is in close contact with the outer peripheral surface of the fireproof member 11, and there is almost no gap between the inner peripheral surface of the refractory member 11 and the outer peripheral surface of the heat insulating material 10.

耐火部材１１の一部である第１端部１５は、貫通孔Ｗａ内に配置されるとともに、その他の部分である露出部Ｒが防火区画壁Ｗの外に配置される。第１端部１５は、防火区画壁Ｗの外面から僅かに奥に入った位置にあるため、防火区画壁Ｗの外側から、第１端部１５の状態を視認できる。 The first end portion 15 which is a part of the fireproof member 11 is arranged in the through hole Wa, and the exposed portion R which is another portion is arranged outside the fireproof partition wall W. Since the first end portion 15 is located slightly behind the outer surface of the fire protection compartment wall W, the state of the first end portion 15 can be visually recognized from the outside of the fire protection compartment wall W.

防火区画壁Ｗの一方側に耐火部材１１を設置した後、防火区画壁Ｗの他方側にも、上記と同様の方法で耐火部材１１を設置する。最後に、防火区画壁Ｗの外側で、各耐火部材１１の外周面と、貫通孔Ｗａの内周面との間の隙間全体をモルタル１９で埋めると、防火区画壁Ｗの貫通構造が形成される。 After installing the fireproof member 11 on one side of the fireproof compartment wall W, the fireproof member 11 is also installed on the other side of the fireproof compartment wall W in the same manner as described above. Finally, when the entire gap between the outer peripheral surface of each fireproof member 11 and the inner peripheral surface of the through hole Wa is filled with mortar 19 outside the fireproof partition wall W, a through structure of the fireproof partition wall W is formed. To.

上記構成の防火区画壁Ｗの貫通構造の作用を記載する。
さて、防火区画壁Ｗの一方側で火災等が発生すると、断熱材１０やその他のものの燃焼により煙が発生する。このとき、貫通孔Ｗａは、膨張した耐火部材１１及びモルタル１９により閉塞されているため、貫通孔Ｗａが煙の経路となることが防止され、防火区画壁Ｗの他方側へ煙が伝わる不都合がなくなる。 The operation of the penetrating structure of the fireproof partition wall W having the above configuration will be described.
When a fire or the like occurs on one side of the fire protection compartment wall W, smoke is generated due to the combustion of the heat insulating material 10 and other materials. At this time, since the through hole Wa is blocked by the expanded refractory member 11 and the mortar 19, it is prevented that the through hole Wa becomes a smoke path, and there is an inconvenience that smoke is transmitted to the other side of the fire prevention partition wall W. It disappears.

しかし、時間の経過に伴い、防火区画壁Ｗの一方側の耐火部材１１が焼失し、火災等や燃焼により発生した熱により、断熱材１０が加熱される。また、流体管Ｓから断熱材１０に熱が伝わる。すると、断熱材１０の気泡が膨張し、断熱材１０そのものが膨張しようとする。 However, with the passage of time, the fireproof member 11 on one side of the fireproof partition wall W is burnt down, and the heat insulating material 10 is heated by the heat generated by fire or combustion. Further, heat is transferred from the fluid pipe S to the heat insulating material 10. Then, the bubbles of the heat insulating material 10 expand, and the heat insulating material 10 itself tries to expand.

しかし、防火区画壁Ｗの他方側において、貫通孔Ｗａ内では断熱材１０の拡径方向への膨張はモルタル１９及び防火区画壁Ｗによって防止される。また、防火区画壁Ｗの外側では、断熱材１０の拡径方向への膨張は、締結部材４０及び補助用締結部材４１によって防止される。そして、耐火部材１１の合わせ面１７同士が突き合わされているため、合わせ面１７同士の間から断熱材１０が膨張することも防止される。さらには、流体管Ｓの軸方向に沿った熱膨張性耐火材層２２の長縁２２ａより先では、補助用締結部材４１によって延出部１３が断熱材１０に密接している。このため、流体管Ｓの軸方向への断熱材１０の膨張が防止される。 However, on the other side of the fire protection compartment wall W, expansion of the heat insulating material 10 in the diameter expansion direction in the through hole Wa is prevented by the mortar 19 and the fire protection compartment wall W. Further, on the outside of the fireproof partition wall W, expansion of the heat insulating material 10 in the diameter-expanding direction is prevented by the fastening member 40 and the auxiliary fastening member 41. Since the mating surfaces 17 of the refractory members 11 are butted against each other, it is possible to prevent the heat insulating material 10 from expanding between the mating surfaces 17. Further, beyond the long edge 22a of the heat-expandable refractory layer 22 along the axial direction of the fluid pipe S, the extending portion 13 is in close contact with the heat insulating material 10 by the auxiliary fastening member 41. Therefore, the expansion of the heat insulating material 10 in the axial direction of the fluid pipe S is prevented.

その後、熱膨張性耐火材層２２が加熱されると膨張する。締結部材４０及び補助用締結部材４１により、熱膨張性耐火材層２２の拡径方向及び軸方向への膨張が規制され、熱膨張性耐火材層２２は、断熱材１０に向けて膨張する。その結果、膨張した熱膨張性耐火材層２２によって断熱材１０が押し潰されるとともに、断熱材１０が焼失することで形成された隙間が埋められる。 After that, when the heat-expandable refractory layer 22 is heated, it expands. The fastening member 40 and the auxiliary fastening member 41 regulate the expansion of the heat-expandable refractory layer 22 in the diameter-expanding direction and the axial direction, and the heat-expandable refractory layer 22 expands toward the heat insulating material 10. As a result, the heat insulating material 10 is crushed by the expanded heat-expandable refractory layer 22, and the gap formed by burning the heat insulating material 10 is filled.

上記実施形態によれば、以下のような効果を得ることができる。
（１）断熱材１０に巻き付けられた耐火部材１１は、第１端部１５のみが貫通孔Ｗａに挿入されている。また、耐火部材１１は、防火区画壁Ｗの外側では、金属製の締結部材４０によって締め付けられている。このため、火災等の発生時の熱により断熱材１０が拡径方向に膨張しようとしても、耐火部材１１のうち、防火区画壁Ｗから締結部材４０が締結された位置までは、それら防火区画壁Ｗ及び締結部材４０によって、断熱材１０の拡径方向への膨張を防止できる。本実施形態のように、断熱効果を高めたために、膨張量が非常に大きい断熱材１０であっても、防火区画壁Ｗ及び締結部材４０によって拡径方向への膨張を防止できる。 According to the above embodiment, the following effects can be obtained.
(1) Only the first end portion 15 of the refractory member 11 wound around the heat insulating material 10 is inserted into the through hole Wa. Further, the fireproof member 11 is fastened by a metal fastening member 40 on the outside of the fireproof partition wall W. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction due to the heat generated when a fire or the like occurs, the fireproof partition walls 11 up to the position where the fastening member 40 is fastened from the fireproof partition wall W. The W and the fastening member 40 can prevent the heat insulating material 10 from expanding in the diameter-expanding direction. Since the heat insulating effect is enhanced as in the present embodiment, even if the heat insulating material 10 has a very large expansion amount, the fireproof partition wall W and the fastening member 40 can prevent the heat insulating material 10 from expanding in the diameter expansion direction.

その結果、熱膨張性耐火材層２２で断熱材１０を囲繞した状態を維持し、結果として熱膨張性耐火材層２２を断熱材１０に向けて膨張させることができ、断熱材１０の焼失によって形成された隙間を埋めることができる。よって、耐火部材１１を用いた貫通構造により、断熱材１０が貫通する防火区画壁Ｗであっても耐火性能を発揮できる。 As a result, the state in which the heat insulating material 10 is surrounded by the heat-expandable refractory layer 22 can be maintained, and as a result, the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10, and the heat insulating material 10 is burnt down. The formed gap can be filled. Therefore, due to the penetrating structure using the fireproof member 11, the fireproof performance can be exhibited even in the fireproof partition wall W through which the heat insulating material 10 penetrates.

（２）締結部材４０は鋼線よりなる。このため、火災等の熱を受けても締結部材４０が融けたり、延びることがなく、締結部材４０によって耐火部材１１の合わせ面１７を突き合わせた状態を維持できる。したがって、粘着によって耐火部材１１の長手方向Ｙ１の両端部同士を重ねて貼り付ける場合のように、粘着面が融けて、耐火部材１１が開くこともない。さらには、耐火部材１１を断熱材１０に何重にも巻き付けて、耐火部材１１で断熱材１０を囲繞した状態を維持する必要もなく、貫通構造の設置に要するコストを抑えることができる。 (2) The fastening member 40 is made of steel wire. Therefore, the fastening member 40 does not melt or extend even when it receives heat such as a fire, and the fastening member 40 can maintain a state in which the mating surfaces 17 of the refractory member 11 are butted against each other. Therefore, unlike the case where both ends of the refractory member 11 in the longitudinal direction Y1 are overlapped and pasted by adhesion, the adhesive surface does not melt and the refractory member 11 does not open. Further, it is not necessary to wind the refractory member 11 around the heat insulating material 10 in multiple layers to maintain the state in which the refractory member 11 surrounds the heat insulating material 10, and the cost required for installing the through structure can be suppressed.

（３）耐火部材１１は、貫通孔Ｗａ内に第１端部１５のみを挿入して設置され、耐火部材１１全体を貫通孔Ｗａに挿入しない。このため、耐火部材１１を設置する際、耐火部材１１の第１端部１５における合わせ面１７が突き合わされているか否かを防火区画壁Ｗの外側から視認できる。また、合わせ面１７を突き合わせた状態を維持したまま貫通孔Ｗａに断熱材１０を挿入する場合と比べると、耐火部材１１の貫通孔Ｗａへの挿入が容易となり、設置が容易となる。 (3) The fireproof member 11 is installed by inserting only the first end portion 15 into the through hole Wa, and the entire fireproof member 11 is not inserted into the through hole Wa. Therefore, when the refractory member 11 is installed, whether or not the mating surfaces 17 at the first end portion 15 of the refractory member 11 are abutted can be visually recognized from the outside of the refractory partition wall W. Further, as compared with the case where the heat insulating material 10 is inserted into the through hole Wa while the mating surfaces 17 are kept abutted against each other, the fireproof member 11 can be easily inserted into the through hole Wa and can be easily installed.

（４）耐火部材１１の設置は、筒状に整形した状態で第１端部１５側を貫通孔Ｗａに挿入した後、防火区画壁Ｗの外側で締結部材４０を耐火部材１１に巻き付けて行われる。このため、締結部材４０を貫通孔Ｗａ内で耐火部材１１に巻き付ける必要がなく、作業性が良い。 (4) The fireproof member 11 is installed by inserting the first end portion 15 side into the through hole Wa in a tubular shape and then winding the fastening member 40 around the fireproof member 11 on the outside of the fireproof partition wall W. It is said. Therefore, it is not necessary to wind the fastening member 40 around the refractory member 11 in the through hole Wa, and the workability is good.

（５）締結部材４０は、防火区画壁Ｗの外面から離れ過ぎないように、露出部Ｒの長さＬの半分となる位置よりも防火区画壁Ｗ寄りに位置している。このため、断熱材１０が拡径方向に膨張しようとしても、耐火部材１１の合わせ面１７を突き合わせた状態を維持できる。 (5) The fastening member 40 is located closer to the fire-prevention partition wall W than the position where it is half the length L of the exposed portion R so as not to be too far from the outer surface of the fire-prevention partition wall W. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction, the state in which the mating surfaces 17 of the refractory members 11 are butted can be maintained.

（６）耐火部材１１は、延出部１３では、金属製の補助用締結部材４１によって締め付けられている。このため、火災等の発生時の熱により断熱材１０が拡径方向に膨張しようとしても、耐火部材１１のうち、防火区画壁Ｗから補助用締結部材４１が締結された位置までは、それら防火区画壁Ｗ、締結部材４０及び補助用締結部材４１によって、断熱材１０の拡径方向への膨張を防止できる。その結果、熱膨張性耐火材層２２で断熱材１０を囲繞した状態を維持し、結果として熱膨張性耐火材層２２を断熱材１０に向けて膨張させることができ、断熱材１０の焼失によって形成された隙間を埋めることができる。よって、耐火部材１１を用いた貫通構造により、断熱材１０が貫通する防火区画壁Ｗであっても耐火性能を発揮できる。 (6) The refractory member 11 is fastened at the extension portion 13 by a metal auxiliary fastening member 41. Therefore, even if the heat insulating material 10 tries to expand in the diameter-expanding direction due to the heat generated when a fire or the like occurs, the fireproof members 11 up to the position where the auxiliary fastening member 41 is fastened from the fireproof partition wall W. The partition wall W, the fastening member 40, and the auxiliary fastening member 41 can prevent the heat insulating material 10 from expanding in the diameter-expanding direction. As a result, the state in which the heat insulating material 10 is surrounded by the heat-expandable refractory layer 22 can be maintained, and as a result, the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10, and the heat insulating material 10 is burnt down. The formed gap can be filled. Therefore, due to the penetrating structure using the fireproof member 11, the fireproof performance can be exhibited even in the fireproof partition wall W through which the heat insulating material 10 penetrates.

（７）締結部材４０は、防火区画壁Ｗの外面から離れた位置にある。そして、締結部材４０を耐火部材１１に巻き付けることによって、断熱材１０の拡径方向への膨張を防止できる。よって、締結部材４０を追加するだけで、防火区画壁Ｗと締結部材４０とで耐火部材１１のほぼ全体を貫通孔Ｗａに挿入したときと同じように、断熱材１０の拡径方向への膨張を防止できる。その一方で、耐火部材１１は、第１端部１５のみを貫通孔Ｗａに挿入しているだけであり、貫通孔Ｗａへの耐火部材１１の挿入状態を容易に視認できる。よって、締結部材４０を用いることで、耐火部材１１を設置する際に、耐火部材１１の合わせ面１７が突き合わされているか否かを容易に視認できながらも、火災等の発生時には、断熱材１０の拡径方向への膨張を防止できる。 (7) The fastening member 40 is located at a position away from the outer surface of the fireproof partition wall W. Then, by winding the fastening member 40 around the refractory member 11, it is possible to prevent the heat insulating material 10 from expanding in the diameter-expanding direction. Therefore, simply by adding the fastening member 40, the heat insulating material 10 expands in the diameter expansion direction in the same manner as when almost the entire refractory member 11 is inserted into the through hole Wa by the fireproof partition wall W and the fastening member 40. Can be prevented. On the other hand, the refractory member 11 only inserts the first end portion 15 into the through hole Wa, and the inserted state of the refractory member 11 into the through hole Wa can be easily visually recognized. Therefore, by using the fastening member 40, when installing the refractory member 11, it is possible to easily visually recognize whether or not the mating surfaces 17 of the refractory member 11 are abutted, but in the event of a fire or the like, the heat insulating material 10 Can be prevented from expanding in the diameter expansion direction.

（８）耐火部材１１はフィルム３２を備え、フィルム３２を断熱材１０に接触させた状態で断熱材１０に巻き付けられる。フィルム３２により熱膨張性耐火材層２２が断熱材１０に貼着することを防止でき、筒状に整形した耐火部材１１を貫通孔Ｗａに向けてスライド移動させる作業を容易に行うことができる。 (8) The refractory member 11 includes a film 32, and the film 32 is wound around the heat insulating material 10 in a state of being in contact with the heat insulating material 10. The film 32 can prevent the heat-expandable refractory layer 22 from being attached to the heat insulating material 10, and the work of sliding and moving the cylindrically shaped refractory member 11 toward the through hole Wa can be easily performed.

（９）耐火部材１１は、基材１２だけで形成された延出部１３を備える。延出部１３には熱膨張性耐火材層２２が存在しないため、延出部１３を断熱材１０の外周面に沿わせ易い。そして、延出部１３を補助用締結部材４１によって断熱材１０に巻き付けることで、延出部１３を断熱材１０に密接させることができる。その結果、熱膨張性耐火材層２２が加熱されたとき、膨張した熱膨張性耐火材層２２が、断熱材１０と延出部１３の間から洩れ出るように、流体管Ｓの軸方向へ膨張することを抑制でき、熱膨張性耐火材層２２を断熱材１０に向けて膨張させることができる。 (9) The refractory member 11 includes an extension portion 13 formed only of the base material 12. Since the heat-expandable refractory material layer 22 does not exist in the extension portion 13, the extension portion 13 can be easily aligned with the outer peripheral surface of the heat insulating material 10. Then, by winding the extending portion 13 around the heat insulating material 10 by the auxiliary fastening member 41, the extending portion 13 can be brought into close contact with the heat insulating material 10. As a result, when the heat-expandable refractory layer 22 is heated, the expanded heat-expandable refractory layer 22 leaks from between the heat insulating material 10 and the extension portion 13 in the axial direction of the fluid pipe S. Expansion can be suppressed, and the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10.

（１０）耐火部材１１は、防火区画壁Ｗを挟んだ両側に設置されている。このため、防火区画壁Ｗを挟んだいずれの側で火災等が発生しても、貫通孔Ｗａを閉塞できる。
なお、上記実施形態は以下のように変更してもよい。 (10) The fireproof members 11 are installed on both sides of the fireproof partition wall W. Therefore, the through hole Wa can be closed even if a fire or the like occurs on any side of the fire protection partition wall W.
The above embodiment may be changed as follows.

○ 図９に示すように、延出部１３は、長尺帯状のアルミテープといった粘着部材５０によって断熱材１０の外周面に貼り付けられていてもよい。このように構成した場合、粘着部材５０の貼り付けにより、延出部１３を断熱材１０の外周面に沿わせ易い。そして、延出部１３を粘着部材５０によって断熱材１０に貼り付けることで、延出部１３を断熱材１０に密接させることができる。また、粘着部材５０により、延出部１３の縁を覆うことができる。その結果、熱膨張性耐火材層２２が加熱されたとき、膨張した熱膨張性耐火材層２２が、断熱材１０と延出部１３の間から洩れ出るように、流体管Ｓの軸方向へ膨張することを抑制でき、熱膨張性耐火材層２２を断熱材１０に向けて膨張させることができる。 ○ As shown in FIG. 9, the extending portion 13 may be attached to the outer peripheral surface of the heat insulating material 10 by an adhesive member 50 such as a long strip-shaped aluminum tape. With this configuration, the extension portion 13 can be easily aligned with the outer peripheral surface of the heat insulating material 10 by attaching the adhesive member 50. Then, by attaching the extending portion 13 to the heat insulating material 10 by the adhesive member 50, the extending portion 13 can be brought into close contact with the heat insulating material 10. Further, the adhesive member 50 can cover the edge of the extending portion 13. As a result, when the heat-expandable refractory layer 22 is heated, the expanded heat-expandable refractory layer 22 leaks from between the heat insulating material 10 and the extension portion 13 in the axial direction of the fluid pipe S. Expansion can be suppressed, and the heat-expandable refractory layer 22 can be expanded toward the heat insulating material 10.

○ 防火区画壁Ｗの貫通構造は、防火区画壁Ｗの厚み方向のいずれか一方側のみに設置されていてもよい。
○ 延出部１３において、断熱材１０の外周面に対向する面に粘着層を設け、粘着層により、延出部１３を断熱材１０の外周面に直接貼り付けてもよい。 ○ The penetrating structure of the fireproof partition wall W may be installed on only one side in the thickness direction of the fireproof partition wall W.
○ In the extending portion 13, an adhesive layer may be provided on the surface facing the outer peripheral surface of the heat insulating material 10, and the extending portion 13 may be directly attached to the outer peripheral surface of the heat insulating material 10 by the adhesive layer.

○ 補助用締結部材４１は、紐状のバインド線ではなく、帯状のアルミバンドや、紐状の針金、番線等であってもよい。
○ 締結部材４０は、紐状のバインド線ではなく、帯状のアルミバンドや、紐状の針金、番線等であってもよい。 ○ The auxiliary fastening member 41 may be a band-shaped aluminum band, a string-shaped wire, a number wire, or the like, instead of the string-shaped bind wire.
○ The fastening member 40 may be a band-shaped aluminum band, a string-shaped wire, a number wire, or the like, instead of the string-shaped bind wire.

○ 補助用締結部材４１は、延出部１３ではなく、熱膨張性耐火材層２２の存在する部分に設けられていてもよい。また、補助用締結部材４１は、延出部１３に設けられるとともに、その補助用締結部材４１と締結部材４０の間の位置においてさらに設けられていてもよい。 ○ The auxiliary fastening member 41 may be provided not in the extending portion 13 but in the portion where the heat-expandable refractory material layer 22 exists. Further, the auxiliary fastening member 41 may be provided in the extending portion 13 and may be further provided at a position between the auxiliary fastening member 41 and the fastening member 40.

○ 実施形態では、耐火部材１１の長手方向Ｙ１両端の合わせ面１７を突き合わせた状態で、締結部材４０及び補助用締結部材４１によって耐火部材１１を締め付けたが、これに限らない。耐火部材１１を長手方向Ｙ１へ延長し、耐火部材１１の重合端部１８同士を重ね合わせた状態で、締結部材４０及び補助用締結部材４１によって耐火部材１１を締め付けてもよい。 ○ In the embodiment, the refractory member 11 is tightened by the fastening member 40 and the auxiliary fastening member 41 in a state where the mating surfaces 17 at both ends of the fireproof member 11 in the longitudinal direction Y1 are butted, but the present invention is not limited to this. The refractory member 11 may be tightened by the fastening member 40 and the auxiliary fastening member 41 in a state where the refractory member 11 is extended in the longitudinal direction Y1 and the polymerized ends 18 of the fireproof member 11 are overlapped with each other.

○ 締結部材４０によって耐火部材１１の長手方向Ｙ１両端を突き合わせた状態では、基材１２の基材短縁１２ｂ同士が突き合わされていればよく、熱膨張性耐火材層２２の短縁２２ｂや、フィルム短縁３２ｂは離れていてもよい。 ○ In a state where both ends of the refractory member 11 in the longitudinal direction are abutted by the fastening member 40, it is sufficient that the short edges 12b of the base material 12 of the base material 12 are butted against each other, and the short edges 22b of the heat-expandable refractory material layer 22 and The short edges 32b of the film may be separated.

○ 耐火部材１１の形状は、実施形態に限らない。耐火部材１１の長手方向Ｙ１への長さや、短手方向Ｙ２への長さは適宜変更してもよい。
○ 耐火部材１１の延出部１３は無くてもよい。 ○ The shape of the refractory member 11 is not limited to the embodiment. The length of the refractory member 11 in the longitudinal direction Y1 and the length in the lateral direction Y2 may be appropriately changed.
○ The extension portion 13 of the refractory member 11 may not be provided.

○ 耐火部材１１のフィルム３２は無くてもよい。
○ 基材１２の材質は、可撓性を有し、不燃性であれば、他の材質のものに変更してもよい。 ○ The film 32 of the refractory member 11 may be omitted.
○ The material of the base material 12 may be changed to another material as long as it is flexible and nonflammable.

○ 耐火部材１１は、断熱材１０に巻き付ける方向に沿う縁が、基材１２の基材短縁１２ｂ、熱膨張性耐火材層２２のフィルム短縁３２ｂ、及びフィルム短縁３２ｂであってもよい。 The edge of the refractory member 11 along the direction of winding around the heat insulating material 10 may be the short edge 12b of the base material 12, the short edge 32b of the film of the heat-expandable refractory layer 22, and the short edge 32b of the film. ..

○ 流体管Ｓを流通する流体は、冷媒ではなく、水等のその他の流体であってもよい。
○ 防火区画壁Ｗは、断熱材１０の拡径方向への膨張を防止できれば、コンクリート壁以外であってもよく、例えば、硬質ポリウレタンフォーム製や、ロックウール保湿板製であってもよい。 ○ The fluid flowing through the fluid pipe S may be other fluid such as water instead of the refrigerant.
○ The fireproof partition wall W may be other than a concrete wall as long as it can prevent the heat insulating material 10 from expanding in the diameter expansion direction, and may be made of, for example, a rigid polyurethane foam or a rock wool moisturizing plate.

Ｒ…露出部、Ｓ…流体管、Ｗ…防火区画壁、Ｗａ…貫通孔、Ｙ１…第１方向としての長手方向、Ｙ２…第２方向としての短手方向、１０…断熱材、１１…耐火部材、１２…基材、１３…延出部、１５…挿入部としての第１端部、１９…充填材としてのモルタル、２２…熱膨張性耐火材層、４０…締結部材、４１…補助用締結部材、５０…粘着部材。 R ... Exposed part, S ... Fluid pipe, W ... Fireproof partition wall, Wa ... Through hole, Y1 ... Longitudinal direction as the first direction, Y2 ... Short direction as the second direction, 10 ... Insulation material, 11 ... Fireproof Member, 12 ... base material, 13 ... extension part, 15 ... first end part as insertion part, 19 ... mortar as filler, 22 ... heat-expandable refractory layer, 40 ... fastening member, 41 ... auxiliary Fastening member, 50 ... Adhesive member.

Claims (4)

独立発泡材製の断熱材により覆われた金属製の流体管が防火区画壁の貫通孔を貫通する箇所に耐火部材が設置されて構成された防火区画壁の貫通構造であって、
前記耐火部材は、可撓性を有する矩形シート状の基材と、前記基材の一面に積層された矩形状の熱膨張性耐火材層を有し、
前記耐火部材において、前記基材の一縁の延びる方向を第１方向とし、前記一縁に直交した他縁の延びる方向を第２方向とし、
前記耐火部材は、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態で前記断熱材に巻き付けられ、前記基材によって前記断熱材が囲繞されるとともに、前記基材と前記断熱材との間に、該断熱材を囲繞する状態で前記熱膨張性耐火材層が介在し、
前記第２方向の一端側に位置した、前記基材及び前記熱膨張性耐火材層の一部が挿入部として前記貫通孔に挿入されるとともに、前記挿入部よりも前記耐火部材の第２方向他端側は、露出部として前記防火区画壁の外側に露出し、
前記貫通孔の内面と前記耐火部材の外面との間が充填材によって埋められ、
前記露出部は、前記防火区画壁から離れた位置にて、前記熱膨張性耐火材層を覆う前記基材を外側から囲む金属製の締結部材によって前記第１方向に締め付けられ、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態が維持され、
前記第２方向への前記基材の長さは、前記第２方向への前記熱膨張性耐火材層の長さより長く、前記耐火部材は、前記第２方向の他端側に前記熱膨張性耐火材層よりもはみ出した前記基材によって形成された延出部を有し、
前記露出部において、前記第２方向に沿って前記締結部材よりも前記防火区画壁から離れた箇所としての前記延出部は、前記基材を外側から囲む帯状又は紐状の補助用締結部材によって前記第１方向に締め付けられることにより前記断熱材の外周面に密接していることを特徴とする防火区画壁の貫通構造。 It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. The state where the ends located at both ends of the are abutted or overlapped is maintained, and the state is maintained .
The length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the fire-resistant member has the heat-expandability on the other end side in the second direction. It has an extension portion formed by the base material that protrudes from the refractory material layer, and has an extension portion.
In the exposed portion, the extending portion as a portion away from the fireproof partition wall from the fastening member along the second direction is provided by a band-shaped or string-shaped auxiliary fastening member that surrounds the base material from the outside. A penetrating structure of a fireproof partition wall, characterized in that it is brought into close contact with the outer peripheral surface of the heat insulating material by being tightened in the first direction. 独立発泡材製の断熱材により覆われた金属製の流体管が防火区画壁の貫通孔を貫通する箇所に耐火部材が設置されて構成された防火区画壁の貫通構造であって、
前記耐火部材は、可撓性を有する矩形シート状の基材と、前記基材の一面に積層された矩形状の熱膨張性耐火材層を有し、
前記耐火部材において、前記基材の一縁の延びる方向を第１方向とし、前記一縁に直交した他縁の延びる方向を第２方向とし、
前記耐火部材は、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態で前記断熱材に巻き付けられ、前記基材によって前記断熱材が囲繞されるとともに、前記基材と前記断熱材との間に、該断熱材を囲繞する状態で前記熱膨張性耐火材層が介在し、
前記第２方向の一端側に位置した、前記基材及び前記熱膨張性耐火材層の一部が挿入部として前記貫通孔に挿入されるとともに、前記挿入部よりも前記耐火部材の第２方向他端側は、露出部として前記防火区画壁の外側に露出し、
前記貫通孔の内面と前記耐火部材の外面との間が充填材によって埋められ、
前記露出部は、前記防火区画壁から離れた位置にて、前記熱膨張性耐火材層を覆う前記基材を外側から囲む金属製の締結部材によって前記第１方向に締め付けられ、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態が維持され、
前記第２方向への前記基材の長さは、前記第２方向への前記熱膨張性耐火材層の長さより長く、前記耐火部材は、前記第２方向の他端側に前記熱膨張性耐火材層よりもはみ出した前記基材によって形成された延出部を有し、前記延出部は粘着部材によって前記断熱材に貼り付けられることにより前記断熱材の外周面に密接していることを特徴とする防火区画壁の貫通構造。 It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. The state where the ends located at both ends of the are abutted or overlapped is maintained, and the state is maintained.
The length of the base material in the second direction is longer than the length of the heat-expandable refractory material layer in the second direction, and the fire-resistant member has the heat-expandability on the other end side in the second direction. It has an extension portion formed by the base material protruding from the refractory material layer, and the extension portion is in close contact with the outer peripheral surface of the heat insulating material by being attached to the heat insulating material by an adhesive member. penetrating structure fire compartment walls, characterized in. 独立発泡材製の断熱材により覆われた金属製の流体管が防火区画壁の貫通孔を貫通する箇所に耐火部材が設置されて構成された防火区画壁の貫通構造であって、
前記耐火部材は、可撓性を有する矩形シート状の基材と、前記基材の一面に積層された矩形状の熱膨張性耐火材層を有し、
前記耐火部材において、前記基材の一縁の延びる方向を第１方向とし、前記一縁に直交した他縁の延びる方向を第２方向とし、
前記耐火部材は、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態で前記断熱材に巻き付けられ、前記基材によって前記断熱材が囲繞されるとともに、前記基材と前記断熱材との間に、該断熱材を囲繞する状態で前記熱膨張性耐火材層が介在し、
前記第２方向の一端側に位置した、前記基材及び前記熱膨張性耐火材層の一部が挿入部として前記貫通孔に挿入されるとともに、前記挿入部よりも前記耐火部材の第２方向他端側は、露出部として前記防火区画壁の外側に露出し、
前記貫通孔の内面と前記耐火部材の外面との間が充填材によって埋められ、
前記露出部における前記第２方向の長さは、前記挿入部における前記第２方向の長さより長く、
前記露出部は、前記防火区画壁から離れた位置にて、前記熱膨張性耐火材層を覆う前記基材を外側から囲む金属製の締結部材によって前記第１方向に締め付けられ、前記第１方向の両端に位置する端部同士を突き合わせた状態、又は重ね合わせた状態が維持されていることを特徴とする防火区画壁の貫通構造。 It is a penetrating structure of the fire-retardant compartment wall, which is composed of a fire-resistant member installed at a place where a metal fluid pipe covered with a heat insulating material made of an independent foam material penetrates a through-hole of the fire-retardant compartment wall.
The refractory member has a flexible rectangular sheet-shaped base material and a rectangular heat-expandable refractory material layer laminated on one surface of the base material.
In the refractory member, the extending direction of one edge of the base material is defined as the first direction, and the extending direction of the other edge orthogonal to the one edge is defined as the second direction.
The refractory member is wound around the heat insulating material in a state where the ends located at both ends in the first direction are abutted or overlapped with each other, and the heat insulating material is surrounded by the base material and the base is formed. The heat-expandable refractory material layer is interposed between the material and the heat insulating material in a state of surrounding the heat insulating material.
A part of the base material and the heat-expandable refractory material layer located on one end side in the second direction is inserted into the through hole as an insertion portion, and the second direction of the refractory member is more than the insertion portion. The other end side is exposed to the outside of the fireproof partition wall as an exposed portion.
The space between the inner surface of the through hole and the outer surface of the refractory member is filled with a filler.
The length of the exposed portion in the second direction is longer than the length of the insertion portion in the second direction.
The exposed portion is fastened in the first direction by a metal fastening member that surrounds the base material covering the heat-expandable refractory layer from the outside at a position away from the fire-prevention partition wall, and is fastened in the first direction. A penetrating structure of a fire-prevention partition wall, characterized in that the ends located at both ends of the above are maintained in a state of being abutted or overlapped with each other. 前記耐火部材は、前記防火区画壁の厚み方向の両側に設置されている請求項１〜請求項３のうちいずれか一項に記載の防火区画壁の貫通構造。 The penetrating structure of the fireproof compartment wall according to any one of claims 1 to 3 , wherein the fireproof member is installed on both sides of the fireproof compartment wall in the thickness direction.
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