JPH0474926B2 - - Google Patents
Info
- Publication number
- JPH0474926B2 JPH0474926B2 JP58182382A JP18238283A JPH0474926B2 JP H0474926 B2 JPH0474926 B2 JP H0474926B2 JP 58182382 A JP58182382 A JP 58182382A JP 18238283 A JP18238283 A JP 18238283A JP H0474926 B2 JPH0474926 B2 JP H0474926B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- floor
- fireproof
- cable penetration
- partition board
- 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.)
- Expired - Lifetime
Links
- 230000035515 penetration Effects 0.000 claims description 44
- 238000005192 partition Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000003566 sealing material Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 7
- 239000011490 mineral wool Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Landscapes
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、床のケーブル貫通部の施工方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of constructing a cable penetration in a floor.
［発明の技術的背景］
一般に、ケーブルが建物の防火区画を貫通する
場合、延焼防止の観点から、貫通部を延焼防止処
理することが法令で義務づけられている。[Technical Background of the Invention] In general, when a cable penetrates a fireproof division of a building, from the viewpoint of preventing the spread of fire, it is required by law that the penetrating portion be treated to prevent the spread of fire.
一方、近年においては、ビルの大型化や内部配
線の複雑化の等の理由により、一ケ所の開口部を
貫通するケーブル類が増加しており、その面積が
標準の開口部面積（0.24m2）を越えることがあ
り、また貫通部の水密性が特に要求されるような
施工対象個所が増大している。 On the other hand, in recent years, as buildings have become larger and internal wiring has become more complex, the number of cables that pass through a single opening has increased, and the area has become smaller than the standard opening area (0.24 m 2 ), and the number of construction sites that require particularly watertight penetrations is increasing.
従来、床で仕切られた防火区画にケーブルを導
入する場合においては、第１図に示すように、ケ
ーブル１を、床２に設けたケーブル貫通口３に貫
通させた後、この床２のケーブル貫通口３に耐火
隔壁４を形成することが行われている。しかし
て、このような耐火隔壁４としては、床２のケー
ブル貫通口３をケーブル挿通孔を有する防火基板
５で覆い、この防火基板５のケーブル挿通孔にケ
ーブル１を挿通させた後、防火基板５と床２のケ
ーブル貫通口３間に不燃材６を充填させ、この上
を防火上板７で覆つた構造のものが知られてい
る。なお、図中８は耐熱シール材を示している。 Conventionally, when introducing a cable into a fire protection compartment partitioned by a floor, as shown in FIG. A fireproof partition wall 4 is formed in the through hole 3. Therefore, as such a fireproof bulkhead 4, the cable penetration hole 3 of the floor 2 is covered with a fireproof board 5 having a cable insertion hole, and after the cable 1 is inserted into the cable insertion hole of this fireproof board 5, the fireproof board A structure is known in which a noncombustible material 6 is filled between the cable penetration hole 3 of the floor 2 and the cable penetration hole 3 of the floor 2, and a fireproof top plate 7 is placed over the noncombustible material 6. Note that 8 in the figure indicates a heat-resistant sealing material.
［背景技術の問題点］
しかしながら、このようなケーブル貫通部にお
いては、床２のケーブル貫通口３に、多孔質のロ
ツクウールから成る不燃材のみが充填されている
ので、地下室等の床下に浸水があつた場合には、
このケーブル貫通部を通つて床上浸水に至る恐れ
があつた。[Problems in the Background Art] However, in such a cable penetration part, the cable penetration opening 3 in the floor 2 is filled only with a noncombustible material made of porous rock wool, so water may not seep into the underfloor of a basement or the like. If it gets hot,
There was a risk that water could enter the floor through this cable penetration.
このため、床のケーブル貫通口を、切れ目を設
けた伸縮性シートで遮蔽されたケーブル挿通孔を
有する防火板で覆い、この防火板のケーブル挿通
孔を挿通させてケーブルを床のケーブル貫通口に
貫通させ、しかる後前記防火板に接して耐火隔壁
を形成するケーブル貫通部の施工方法が開発され
ている（特開昭58−163212号公報参照）。 For this reason, the cable penetration hole in the floor is covered with a fireproof board that has a cable insertion hole that is shielded by a stretchable sheet with cuts, and the cable is passed through the cable penetration hole in the fireproof board and the cable is inserted into the cable penetration hole in the floor. A method of constructing a cable penetration part has been developed in which the cable is passed through the cable and then comes into contact with the fireproof plate to form a fireproof bulkhead (see Japanese Patent Laid-Open No. 163212/1983).
しかしながら、かかるケーブル貫通部の施工方
法は、予め床のケーブル貫通口にケーブルが貫通
配設されているものには適用できないという致命
的な欠陥があり、また伸縮性シートの切れ目にラ
ツク等の配線支持金物にケーブルを載置・固定し
た大型の線状物を挿通させることが極めて困難で
ある上、ロツクウール等の充填材にフレームレジ
ンを注入してその水密特性を向上させると、ロツ
クウール等の耐火充填材の重量が重くなり、ひい
ては、伸縮性シートが破損するという難点があつ
た。 However, this construction method for cable penetrations has a fatal flaw in that it cannot be applied to cables that have been previously installed through cable penetration holes in the floor. It is extremely difficult to insert a large linear object with a cable mounted and fixed onto the supporting hardware, and if frame resin is injected into the filling material such as rock wool to improve its watertight properties, it is difficult to pass the fireproof material such as rock wool. There was a problem that the weight of the filler increased, and as a result, the elastic sheet was damaged.
［発明の目的］
本発明は、かかる従来の欠点を解消すべくなさ
れたもので、標準の開口部面積を越えるケーブル
貫通口にケーブルが取り付けられた配線支持金物
が貫通配設されている場合であつても、床のケー
ブル貫通口の水密性を良好にして、当該ケーブル
貫通部からの浸水を防止しうるケーブル貫通部の
施工方法を提供せんとするものである。[Object of the Invention] The present invention has been made in order to eliminate such conventional drawbacks, and is applicable to cases where a wiring support metal fitting to which a cable is attached is disposed through a cable penetration opening that exceeds a standard opening area. It is an object of the present invention to provide a construction method for a cable penetration part that can improve the watertightness of the cable penetration opening in the floor and prevent water from seeping through the cable penetration part.
［発明の概要］
すなわち、本発明のケーブル貫通部の施工方法
は、ケーブルが取り付けられた配線支持金物が貫
通配設された床のケーブル貫通口に繊維状の耐火
充填材を充填し、前記床の下側に挿通孔を備える
分割構成の耐火仕切基板を前記挿通孔に前記配線
支持金物及びケーブルを挿通させて配設した後、
その両端部を前記床の下側に固定し、次いで前記
耐火仕切基板の挿通孔部分の〓間に耐熱シール材
を充填した後、前記耐火充填材に所定時間経過後
に硬化する液状のフレームレジンを注入充填する
ことを特徴としている。[Summary of the Invention] That is, the method for constructing a cable penetration part of the present invention is to fill a cable penetration opening in a floor through which a wiring support hardware to which a cable is attached is arranged, and to After arranging a fireproof partition board with a split structure having an insertion hole on the lower side of the board by inserting the wiring support hardware and the cable into the insertion hole,
Both ends are fixed to the underside of the floor, and then a heat-resistant sealing material is filled between the insertion holes of the fireproof partition board, and then a liquid frame resin that hardens after a predetermined period of time is applied to the fireproof filler. It is characterized by injection filling.
［発明の実施例］
以下、本発明を一実施例の図面に基づいて説明
する。第２図は本発明により形成された床のケー
ブル貫通部の一部切断面図、第３図は本発明のケ
ーブル貫通部を構成する主要物品等の斜視図であ
る。かかる床のケーブル貫通部は以下のようにし
て形成されている。[Embodiment of the Invention] The present invention will be described below based on the drawings of one embodiment. FIG. 2 is a partially cutaway view of a cable penetration section of a floor formed according to the present invention, and FIG. 3 is a perspective view of the main items constituting the cable penetration section of the present invention. Such a floor cable penetration part is formed as follows.
先ず、建築物の防火区画を構成する床１１の所
定個所には、断面積が0.48m2程度のケーブル貫通
口１２が設けられており、このケーブル貫通口１
２には、それぞれ、ケーブル１０が堅固に取り付
けられたラツク等から成る配線支持金物９ａ，９
ｂが２列にかつ垂直に貫通配設されている。 First, a cable penetration port 12 with a cross-sectional area of approximately 0.48 m 2 is provided at a predetermined location on the floor 11 that constitutes a fire protection section of the building.
Wiring support metal fittings 9a and 9, each consisting of a rack or the like to which the cable 10 is firmly attached, are respectively installed at 2.
b are vertically penetratingly arranged in two rows.
しかして、かかる床１１のケーブル貫通口１２
には、床１１の下側よりロツクウール等から成る
耐火充填材１３が、その充填密度が少なくても
200Kg／m3となる如く充填されている。 Therefore, the cable penetration hole 12 of the floor 11
In this case, a fireproof filling material 13 made of rock wool or the like is placed from the bottom of the floor 11, even if the packing density is low.
It is filled at 200Kg/ m3 .
１４は、２列の配線支持金物９ａ，９ｂの形状
に合わせて切断された石綿けい酸カルシウム板
（厚さ：50mm程度）等から成る３枚の分割板１４
ａ〜１４ｃで構成される耐火仕切基板で、これら
の分割板１４ａ〜１４ｃのうち、２枚の分割板１
４ａ，１４ｂの一方側には配線支持金物９ａ，９
ｂの挿通孔となる矩形状の切欠部１９ａ，１９ｂ
がそれぞれ設けられている。しかして、これらの
３枚の分割板１４ａ〜１４ｃは次のようにして、
床１１の下側に配設固定される。すなわち、先
ず、中央部の分割板１４ｂを２列に配設された配
線支持金物９ａ，９ｂ間に挿入して、一方の配線
支持金物９ａに分割板１４ｂの切欠部１９ａを嵌
め、次に右側の分割板１４ａを配設して、その切
欠部１９ｂを他方の配線支持金物９ｂに嵌め、次
いで、左側の分割板１４ｃを一方の配線支持金物
９ａに当接する。 Reference numeral 14 denotes three divided plates 14 made of asbestos calcium silicate plates (thickness: approximately 50 mm) cut to match the shapes of the two rows of wiring support hardware 9a, 9b.
In the fireproof partition board composed of a to 14c, two of these dividing plates 14a to 14c
Wiring support hardware 9a, 9 is provided on one side of 4a, 14b.
Rectangular cutouts 19a and 19b that serve as insertion holes of b
are provided for each. Therefore, these three dividing plates 14a to 14c are arranged as follows.
It is arranged and fixed under the floor 11. That is, first, the center dividing plate 14b is inserted between the wiring support hardware 9a, 9b arranged in two rows, the notch 19a of the dividing plate 14b is fitted into one of the wiring support hardware 9a, and then the right side The dividing plate 14a is disposed, and its notch 19b is fitted into the other wiring support metal fitting 9b, and then the left dividing plate 14c is brought into contact with one of the wiring supporting metal fittings 9a.
以上のようにしてケーブル貫通口１２を閉塞す
る如くして床１１の下側に配設された分割板１４
ａ〜１４ｃの両端部は、ホールインアンカー等に
よつて床１１の下側に固定される。 The dividing plate 14 is disposed below the floor 11 so as to close the cable penetration port 12 as described above.
Both ends of a to 14c are fixed to the lower side of the floor 11 by hole-in anchors or the like.
次に、耐火仕切基板１４の挿通孔部分の間〓、
すなわち、分割板１４ａ〜１４ｃどうしの合わせ
目１５間及び各分割板１４ａ〜１４ｃとケーブル
１０及び配線支持金物９ａ，９ｂ間の〓間にフレ
ームシール（登録商標）等から成るパテ状の耐熱
シール材１６を充填する。 Next, between the insertion holes of the fireproof partition board 14,
That is, a putty-like heat-resistant sealing material made of Frame Seal (registered trademark) or the like is applied between the seams 15 between the dividing plates 14a to 14c and between each dividing plate 14a to 14c and the cable 10 and wiring support hardware 9a and 9b. Fill 16.
しかして、Ａ液（硬化剤）及びＢ液（主剤）を
15：100の割合で混合し、十分に攪拌しておいた
フレームレジン１７を床１１の上部より注入す
る。このフレームレジン１７は、混合後約30分で
硬化開始するので、１時間以内に、かつ床１１の
下側への漏れ等の有無を確認しながら少しづつ注
入する。 Therefore, liquid A (curing agent) and liquid B (main ingredient)
Flame resin 17, which has been mixed at a ratio of 15:100 and sufficiently stirred, is injected from the top of bed 11. Since this frame resin 17 starts to harden approximately 30 minutes after mixing, it is injected little by little within one hour while checking for leakage to the underside of the floor 11.
なお、このフレームレジン１７の注入作業は、
例えば床１１の下側には十分な作業スペースがあ
りながら、床１１の上側にはケーブル貫通口１２
の周辺に器材が載置されていて十分な作業スペー
スが存在しない場合においては、ケーブル貫通口
１２にパイプ（不図示）の一端を臨ませ、このパ
イプを介してフレームレジン１７を注入すること
により行なつてもよい。 In addition, the injection work of this frame resin 17 is as follows:
For example, while there is sufficient work space below the floor 11, there is a cable penetration hole 12 above the floor 11.
When equipment is placed around the frame and there is not enough work space, one end of a pipe (not shown) is exposed to the cable penetration port 12, and the frame resin 17 is injected through this pipe. You may do so.
また、ケーブルとしてトリプレツクス型の電力
ケーブル１０′を使用する場合は、耐火補強用と
して、耐熱シール材を耐火仕切基板の表面より両
側100mm程度にわたり厚さ約５mm巻付け、更に延
焼防止材を両側約1000mmにわたり約３mm程度の厚
さで塗布することが望ましい。 In addition, when using a triplex type power cable 10' as a cable, for fireproof reinforcement, wrap a heat-resistant sealing material about 5 mm thick over about 100 mm on both sides from the surface of the fire-resistant partition board, and then wrap a fire-spread prevention material about 5 mm on both sides. It is desirable to apply the coating to a thickness of about 3 mm over 1000 mm.
なお、前述の実施例においては、３枚の分割板
１４ａ〜１４ｃから成る耐火仕切基板について述
べているが、配線支持金物が１列の場合において
は、２枚の分割板から成る耐火仕切基板で、すな
わち切欠部を有する分割板と切欠部を有しない分
割板との組み合わせによつて耐火仕切基板を構成
してもよい。 In addition, in the above-mentioned embodiment, a fireproof partition board consisting of three dividing plates 14a to 14c is described, but in the case where there is one row of wiring support hardware, a fireproof partitioning board consisting of two dividing plates may be used. That is, the fireproof partition board may be configured by a combination of a dividing plate having a notch and a dividing plate having no notch.
かかる構成のケーブル貫通部の施工方法によれ
ば、繊維状の耐火充填材に液状のフレームレジン
が注入充填されているので、水密性の良好なケー
ブル貫通部を提供することができる。また、分割
構成の耐火仕切基板を使用しているので、ケーブ
ル貫通口に予め配線支持金物が貫通配設されてい
る場合であつても、ケーブル貫通部の延焼防止処
理を容易に行うことができる。更に、耐火充填材
の下方に、比較的剛性の耐火仕切基板を配設して
いるので、液状のフレームレジンの注入充填によ
つて繊維状の耐火充填材の重量が重くなつても耐
火仕切基板が破損する恐れのないケーブル貫通部
を提供することができる。 According to the method for constructing a cable penetration part having such a configuration, since the fibrous fireproof filler is injected and filled with liquid frame resin, it is possible to provide a cable penetration part with good watertightness. In addition, since a fireproof partition board with a split structure is used, it is possible to easily prevent the spread of fire at the cable penetration area even if wiring support metal fittings have been previously installed through the cable penetration opening. . Furthermore, since a relatively rigid fireproof partition board is placed below the fireproof filler, even if the weight of the fibrous fireproof filler increases due to the injection of liquid frame resin, the fireproof partition board remains stable. It is possible to provide a cable penetration part that is free from damage.
［発明の効果］
以上説明したように、本発明のケーブル貫通部
の施工方法によれば、予め床のケーブル貫通口に
ケーブルが貫通配設されている場合であつても、
水密性の良好なケーブル貫通部を提供することが
でき、ひいては、当該ケーブル貫通部からの浸水
事故の発生を防止しうるケーブル貫通部を提供す
ることができる。[Effects of the Invention] As explained above, according to the method for constructing a cable penetration part of the present invention, even when a cable is previously installed through the cable penetration opening in the floor,
It is possible to provide a cable penetration portion with good watertightness, and in turn, it is possible to provide a cable penetration portion that can prevent water intrusion from the cable penetration portion.
第１図は、従来のケーブル貫通部の断面図、第
２図は、本発明の一実施例により形成されたケー
ブル貫通部の一部欠切断面図、第３図は、ケーブ
ル貫通口及び耐火仕切基板の斜視図である。
９ａ，９ｂ……配線支持金物、１０……ケーブ
ル、１１……床、１２……ケーブル貫通口、１３
……耐火充填材、１４……耐火仕切基板、１４ａ
〜１４ｃ……分割板、１７……フレームレジン、
１６……耐熱シール材。
FIG. 1 is a sectional view of a conventional cable penetration part, FIG. 2 is a partially cutaway sectional view of a cable penetration part formed according to an embodiment of the present invention, and FIG. 3 is a cable penetration hole and a fireproof It is a perspective view of a partition board. 9a, 9b... Wiring support hardware, 10... Cable, 11... Floor, 12... Cable penetration opening, 13
... Fireproof filler, 14 ... Fireproof partition board, 14a
~14c...Divided plate, 17...Frame resin,
16...Heat-resistant sealing material.
Claims (1)
通配設された床のケーブル貫通口に繊維状の耐火
充填材を充填し、前記床の下側に挿通孔を備える
分割構造の耐火仕切基板を前記挿通孔に前記配線
支持金物及びケーブルを挿通させて配設した後、
その両端部を前記床の下側に固定し、次いで前記
耐火仕切基板の挿通孔部分の〓間に耐熱シール材
を充填した後、前記耐火充填材に所定時間経過後
に硬化する液状のフレームレジンを注入充填する
ことを特徴とするケーブル貫通部の施工方法。1 Fill the cable penetration opening of the floor through which the wiring support hardware to which the cable is attached is placed with a fibrous fireproof filler, and insert the split-structure fireproof partition board with insertion holes on the lower side of the floor. After inserting and arranging the wiring support metal fittings and cables into the holes,
Both ends are fixed to the underside of the floor, and then a heat-resistant sealing material is filled between the insertion holes of the fireproof partition board, and then a liquid frame resin that hardens after a predetermined period of time is applied to the fireproof filler. A method of constructing a cable penetration section characterized by injection filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58182382A JPS6074912A (en) | 1983-09-29 | 1983-09-29 | Method of working cable passing portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58182382A JPS6074912A (en) | 1983-09-29 | 1983-09-29 | Method of working cable passing portion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6074912A JPS6074912A (en) | 1985-04-27 |
| JPH0474926B2 true JPH0474926B2 (en) | 1992-11-27 |
Family
ID=16117332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58182382A Granted JPS6074912A (en) | 1983-09-29 | 1983-09-29 | Method of working cable passing portion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074912A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580783U (en) * | 1992-04-07 | 1993-11-02 | 株式会社フロンテイア喜世 | Storage file for Keisei Telegram, Keisei bag, etc. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163212A (en) * | 1982-03-19 | 1983-09-28 | 昭和電線電纜株式会社 | Method of machining cable passing unit |
-
1983
- 1983-09-29 JP JP58182382A patent/JPS6074912A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163212A (en) * | 1982-03-19 | 1983-09-28 | 昭和電線電纜株式会社 | Method of machining cable passing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6074912A (en) | 1985-04-27 |
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