JP2614642B2 - Slab penetrating steel pipe joint structure - Google Patents
Slab penetrating steel pipe joint structureInfo
- Publication number
- JP2614642B2 JP2614642B2 JP63136223A JP13622388A JP2614642B2 JP 2614642 B2 JP2614642 B2 JP 2614642B2 JP 63136223 A JP63136223 A JP 63136223A JP 13622388 A JP13622388 A JP 13622388A JP 2614642 B2 JP2614642 B2 JP 2614642B2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- slab
- joint structure
- ceramic fiber
- filling layer
- 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 - Fee Related
Links
Landscapes
- Building Environments (AREA)
- Thermal Insulation (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、防火区画を形成するスラブ（床、天井又は
壁）を貫通して設けられる鋼管の接合構造に関し、詳細
には上記鋼管とスラブの接合部分において優れた耐火、
耐熱及び耐熱性能を発揮することのできる接合構造に関
するものである。Description: TECHNICAL FIELD The present invention relates to a joint structure of a steel pipe provided to penetrate a slab (floor, ceiling or wall) forming a fire protection compartment, and more particularly, to a steel pipe and a slab. Excellent fire resistance at the joints of
The present invention relates to a joint structure capable of exhibiting heat resistance and heat resistance performance.
［従来の技術］ 防火区画を貫通して給排水管等を配設するに当たって
は、日本建築センター防災性能評定に基づく次の〜
の試験基準を満足することが要求される。[Prior art] In arranging plumbing pipes and the like through a fire prevention section, the following criteria based on the Nippon Building Center disaster prevention performance rating were used.
It is required to satisfy the test criteria of
加熱中耐火上有害と認められる変形、破壊並びに脱落
等の変化を生じない。During heating, there is no change such as deformation, destruction or falling off which is regarded as harmful to fire resistance.
加熱中貫通部及び充填部には火炎を通すような亀裂や
隙間を生じない。During heating, no cracks or gaps are formed in the penetration portion and the filling portion such that a flame passes.
加熱中貫通部及び充填部から発火してはならない。Do not ignite from penetrations and fills during heating.
加熱中スラブ反対側の充填部及び管の温度が260℃を
超えてはならない。During heating, the temperature of the filling and tube opposite the slab shall not exceed 260 ° C.
加熱終了後10分以内に裏面側のケーブルに火気を生じ
たり、火気の残存があってはならない。Within 10 minutes after the end of heating, there must be no fire on the cable on the back side or no remaining fire.
第４図は防火壁１を貫通して設けられる給排水用硬質
塩化ビニルライニング鋼管２の接合構造を示す断面説明
図である。該鋼管２の外周には防蝕用ビニルテープ３が
巻回され（ビニルテープに替えて錆止めペイントを塗布
することもある）、貫通孔７の内周面と該鋼管２の外周
面の間に形成される貫挿空間には、モルタルセメント４
が充填される。こうして鋼管２の貫通隙間はモルタルセ
メント４によって完全に封鎖され、鋼管２を防火壁１に
支持固定する役割を発揮すると共に、加熱側Ｈの火炎や
高温空気等が常温側Ｃへ入り込まない様に遮断する役割
りをも発揮する。FIG. 4 is a sectional explanatory view showing a joint structure of a hard vinyl chloride lining steel pipe 2 for water supply and drainage provided through the fire wall 1. A corrosion-resistant vinyl tape 3 is wound around the outer periphery of the steel pipe 2 (a rust-preventive paint may be applied instead of the vinyl tape), and formed between the inner peripheral surface of the through hole 7 and the outer peripheral surface of the steel pipe 2. Mortar cement 4
Is filled. In this manner, the through gap of the steel pipe 2 is completely closed by the mortar cement 4, and serves to support and fix the steel pipe 2 to the fire wall 1 while preventing the flame on the heating side H and high-temperature air from entering the room temperature side C. It also plays the role of blocking.
［発明が解決しようとする課題］ 上記接合構造で施工された場合において、鋼管２が口
径200A（呼び径：外径は216.3mm）未満のものについて
は前記〜の基準を全て満足することは比較的容易で
あった。ところが口径が200A以上にもなると前記の基
準を満たすことが非常に難かしくなるという問題があっ
た。即ち、たとえば２時間の耐火試験を行なったとする
と、モルタルセメント４の常温側Ｃ充填部端面における
温度測定点Poの温度が260℃を超えてしまい、上記接合
構造では特に断熱性能の間で問題があることが分かっ
た。[Problem to be Solved by the Invention] In the case where the steel pipe 2 is constructed with the above-mentioned joint structure, the steel pipe 2 having a diameter of less than 200A (nominal diameter: outer diameter is 216.3 mm) satisfies all of the above criteria. It was easy. However, there is a problem that it becomes very difficult to satisfy the above-mentioned standard when the diameter becomes 200 A or more. That is, for example, if a fire resistance test is performed for 2 hours, the temperature of the temperature measurement point Po on the end face of the mortar cement 4 at the room temperature side C filling portion exceeds 260 ° C., and in the above-described joint structure, there is a problem particularly in heat insulation performance. I found it.
そこで本発明者らは、口径200A以上の鋼管を配設する
場合においても、上記〜の基準を容易に満たすこと
ができ、優れた耐火，耐熱及び断熱性能を発揮する様な
接合構造を開発する目的で種々研究を重ね、本発明を完
成した。Therefore, the present inventors develop a joint structure that can easily satisfy the above-mentioned criteria even when disposing a steel pipe having a diameter of 200 A or more and exhibit excellent fire resistance, heat resistance, and heat insulation performance. After various studies for the purpose, the present invention was completed.
［課題を解決するための手段］ 上記目的を達成した本発明は、防火区画のスラブを貫
通して鋼管が配設され、該鋼管の外周面とスラブ貫通孔
の間にセラミックス繊維充填層が形成されたスラブと鋼
管の接合構造において、上記セラミックス繊維充填層の
片側端面には、該セラミックス繊維充填層の繊維より断
熱性が高いセラミックス繊維による断熱セラミックス繊
維充填層が形成され、前記両セラミックス繊維充填層で
構成された充填層の外側両端面には耐火パテ層が形成さ
れ、該耐火パテ層の外側両端面は無機質耐火物製板によ
り封鎖されてなることを要旨とするものである。[Means for Solving the Problems] According to the present invention which has achieved the above object, a steel pipe is provided through a slab of a fire protection section, and a ceramic fiber filling layer is formed between an outer peripheral surface of the steel pipe and a slab through hole. In the joined structure of the slab and the steel pipe thus formed, a heat-insulating ceramic fiber-filled layer made of ceramic fibers having a higher heat-insulating property than the fibers of the ceramic fiber-filled layer is formed on one end face of the ceramic fiber-filled layer. The gist of the invention is that a refractory putty layer is formed on both outer end surfaces of the packed layer composed of layers, and the outer both end surfaces of the refractory putty layer are closed by an inorganic refractory plate.
［作用及び実施例］ 第１図は本発明の代表的な実施例を示す断面説明図、
第２図は第１図の矢印II方向からの矢視説明図である。
鋼管２の外周面には防蝕用のビニルテープ３を巻回する
と共に、防火壁１の貫通孔７を貫通して鋼管２を配設す
る。そして貫通孔７の内周面と前記鋼管２の外周面の間
に形成される隙間にはセラミックス繊維、例えばロック
ウール（JIS A9504）５を150〜200kg/m3の密度で充填
し、該ロックウール５の充填層の片側端面には、上記充
填層の繊維より断熱性が高いセラミックス繊維による断
熱セラミックス繊維充填層８を形成し、さらに該断熱セ
ラミックス繊維充填層８及び前記ロックウール５の片側
端部には耐火パテ（ファインフレックスファイバーキャ
スト：ニチアス社製）9bを５〜20mmの厚さに充填する。
前記断熱セラミックス繊維充填層８はシリカファイバ
ー，アルミナファイバー又は炭化珪素繊維を用いること
が望まれる。尚本発明ではロックウールの如き天然無機
質繊維及びシリカファイバーの如き加工無機質繊維をセ
ラミックス繊維と称している。上記耐火パテ9bは防火壁
１の左右両壁面と面一となる様に充填され、該耐火パテ
9bの外側には無機質耐火物製板６を夫々添設する。該無
機質耐火物製板６は珪素カルシウム製板又は耐火レンガ
製板等の耐火材料によって形成され、中央部に鋼管２を
通す切欠き10aを設けた半割形状に形成され、防火壁１
との当接面側には耐火接着剤を塗布して該防火壁々面に
貼着すると共に、防火壁１に突設されたアンカーボルト
10に固定する。そして前記の切欠き10aと鋼管２の外周
面の間に生じる隙間、アンカーボルトの突出部、及び防
火壁々面と耐火物製板６の境界部には耐火パテ9aを塗り
込んで封鎖のための処理を施こす。FIG. 1 is a sectional explanatory view showing a typical embodiment of the present invention,
FIG. 2 is an explanatory diagram viewed from the direction of arrow II in FIG.
A corrosion-resistant vinyl tape 3 is wound around the outer peripheral surface of the steel pipe 2, and the steel pipe 2 is provided through the through-hole 7 of the fire wall 1. A gap formed between the inner peripheral surface of the through hole 7 and the outer peripheral surface of the steel pipe 2 is filled with ceramic fibers, for example, rock wool (JIS A9504) 5 at a density of 150 to 200 kg / m 3. On one end face of the filling layer of the wool 5, a heat insulating ceramic fiber filling layer 8 made of ceramic fiber having higher heat insulating property than the fiber of the filling layer is formed. Further, the heat insulating ceramic fiber filling layer 8 and one end of the rock wool 5 are formed. The portion is filled with a refractory putty (Fineflex Fiber Cast: Nichias) 9b to a thickness of 5 to 20 mm.
It is desirable to use silica fiber, alumina fiber or silicon carbide fiber for the heat insulating ceramic fiber filling layer 8. In the present invention, natural inorganic fibers such as rock wool and processed inorganic fibers such as silica fibers are referred to as ceramic fibers. The refractory putty 9b is filled so as to be flush with the left and right wall surfaces of the fire protection wall 1, and the refractory putty 9b is filled.
An inorganic refractory plate 6 is additionally provided outside 9b. The inorganic refractory plate 6 is formed of a refractory material such as a silicon calcium plate or a refractory brick plate, and is formed in a half-shape having a notch 10a through which a steel pipe 2 is passed in the center.
A fire-resistant adhesive is applied to the abutting surface side and is adhered to each of the firewalls, and an anchor bolt protruding from the firewall 1 is provided.
Fix to 10. Then, the gap formed between the notch 10a and the outer peripheral surface of the steel pipe 2, the protrusion of the anchor bolt, and the boundary between the fire barriers and the refractory plate 6 are coated with a refractory putty 9a for sealing. Process.
上記の鋼管接合構造であれば、耐火性能、耐熱性能、
断熱性能の全ての面で優れた効果を発揮し、前記〜
の基準を全て満足することができる。尚無機質耐火物製
板６の厚さは20mm以上とすることにより、前記断熱性能
等においてより優れた効果を発揮できることが分かっ
た。If the above steel pipe joint structure, fire resistance performance, heat resistance performance,
Demonstrates excellent effects in all aspects of heat insulation performance,
All of the criteria can be satisfied. In addition, it was found that by setting the thickness of the inorganic refractory plate 6 to 20 mm or more, more excellent effects in the heat insulation performance and the like can be exhibited.
第３図（ａ）に示す従来例及び第３図（ｂ）に示す本
発明実施例において、加熱側ＨをJIS A1304に規定する
標準加熱曲線に従って２時間で1010℃に到達させ、常温
側Ｃの測点P1,P2における温度変化を夫々測定した。尚
防火壁１は100mm厚のプレストレスコンクリート板を使
用し、本発明実施例におけるロックウール５充填層は厚
70mm,断熱セラミックス繊維充填層８は厚さ10mmとし，
無機質耐火物板６としては厚さ22mmの珪酸カルシウム板
を用いた。In the conventional example shown in FIG. 3 (a) and the embodiment of the present invention shown in FIG. 3 (b), the heating side H is allowed to reach 1010 ° C. in 2 hours according to the standard heating curve specified in JIS A1304, The temperature changes at the measurement points P 1 and P 2 were measured. The fire wall 1 is made of a 100 mm thick prestressed concrete plate, and the rock wool 5 packed layer in the embodiment of the present invention is thick.
70 mm, the heat-insulating ceramic fiber filled layer 8 is 10 mm thick,
As the inorganic refractory plate 6, a calcium silicate plate having a thickness of 22 mm was used.
この実験の結果従来例における測点P1の最高温度は29
7℃に達したのに対し、本発明における測点P2では109℃
が最高温度であり、本発明実施例では断熱性能に優れ、
前記の基準を容易に満足し得ることが分かった。The maximum temperature of the measurement point P 1 results in a conventional example of this experiment is 29
While reaching 7 ° C., at the measuring point P 2 in the present invention 109 ° C.
Is the highest temperature, in the embodiment of the present invention is excellent in heat insulation performance,
It has been found that the above criteria can easily be met.
本発明においてスラブを貫通して配設する鋼管は前記
の硬質塩化ビニルライニング鋼管に限られず、この他炭
素鋼々管やタールエポキシ塗装鋼管等にも適用できる。
またロックウール５に替えてガラス繊維、スラグウール
等を使用するものであっても同等の耐火／耐熱性能及び
断熱性能を発揮でき、これらの設計変更は全て本発明に
含まれる。In the present invention, the steel pipe penetrating through the slab is not limited to the above-mentioned hard vinyl chloride-lined steel pipe, but can also be applied to other carbon steel pipes and tar epoxy coated steel pipes.
Further, even if glass fiber, slag wool, or the like is used in place of the rock wool 5, the same fire / heat resistance and heat insulation performance can be exhibited, and these design changes are all included in the present invention.
［発明の効果］ 本発明により、口径の大きな鋼管を防火区画を貫通し
て配設する場合においても、日本建築センター防災性能
評定に基づく試験基準を満足することが容易となり、優
れた耐火，耐熱性能及び断熱性能を発揮することができ
る様になった。[Effects of the Invention] According to the present invention, even when a steel pipe having a large diameter is penetrated through a fire protection compartment, it becomes easy to satisfy the test standards based on the Nippon Building Center disaster prevention performance rating, and excellent fire resistance and heat resistance Performance and heat insulation performance can be exhibited.
第１図は本発明の代表的な実施例を示す断面説明図、第
２図は第１図の矢印II方向からの矢視説明図、第３図
（ａ）は従来例を示す説明図、第３図（ｂ）は本発明実
施例を示す説明図、第４図は従来例を示す断面説明図で
ある。 １……防火壁、２……鋼管 ３……ビニルテープ、４……モルタルセメント ５……ロックウール、６……無機質耐火物製板 ７……貫通孔 ８……断熱セラミックス繊維充填層 10……アンカーボルトFIG. 1 is an explanatory cross-sectional view showing a typical embodiment of the present invention, FIG. 2 is an explanatory view taken in the direction of arrow II in FIG. 1, FIG. 3 (a) is an explanatory view showing a conventional example, FIG. 3B is an explanatory view showing an embodiment of the present invention, and FIG. 4 is a sectional explanatory view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Fire wall 2 ... Steel pipe 3 ... Vinyl tape 4 ... Mortar cement 5 ... Rock wool 6 ... Inorganic refractory plate 7 ... Through hole 8 ... Insulating ceramic fiber filled layer 10 ... …Anchor bolt
───────────────────────────────────────────────────── フロントページの続き (72)発明者 須賀 良平 大阪府堺市石津北町64番地 久保田鉄工 株式会社ビニルパイプ工場内 (56)参考文献 実開 昭60−154681（ＪＰ，Ｕ) ────────────────────────────────────────────────── ─── Continuing on the front page (72) Ryohei Suga, 64, Ishizukita-cho, Sakai-shi, Osaka Kubota Iron Works Co., Ltd. Inside the vinyl pipe plant (56) References Japanese Utility Model Showa 60-154681 (JP, U)
Claims (1)
れ、該鋼管の外周面とスラブ貫通孔の間にセラミックス
繊維充填層が形成されたスラブと鋼管の接合構造におい
て、 上記セラミックス繊維充填層の片側端面には、該セラミ
ックス繊維充填層の繊維より断熱性が高いセラミックス
繊維による断熱セラミックス繊維充填層が形成され、 前記両セラミックス繊維充填層で構成された充填層の外
側両端面には耐火パテ層が形成され、 該耐火パテ層の外側両端面は無機質耐火物製板により封
鎖されてなることを特徴とするスラブ貫通鋼管の接合構
造。1. A joint structure between a slab and a steel pipe, wherein a steel pipe is disposed through a slab of a fire protection section, and a ceramic fiber filling layer is formed between an outer peripheral surface of the steel pipe and a slab through hole. On one end face of the filling layer, a heat-insulating ceramic fiber filling layer made of ceramic fibers having higher heat insulating properties than the fibers of the ceramic fiber filling layer is formed, and on both outer end faces of the filling layer composed of the two ceramic fiber filling layers, A joint structure for a steel pipe penetrating a slab, wherein a refractory putty layer is formed, and both outer end surfaces of the refractory putty layer are closed by an inorganic refractory plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63136223A JP2614642B2 (en) | 1988-06-02 | 1988-06-02 | Slab penetrating steel pipe joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63136223A JP2614642B2 (en) | 1988-06-02 | 1988-06-02 | Slab penetrating steel pipe joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01307584A JPH01307584A (en) | 1989-12-12 |
| JP2614642B2 true JP2614642B2 (en) | 1997-05-28 |
Family
ID=15170173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63136223A Expired - Fee Related JP2614642B2 (en) | 1988-06-02 | 1988-06-02 | Slab penetrating steel pipe joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2614642B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2706195B2 (en) * | 1991-12-17 | 1998-01-28 | 有限会社大伸総合設備室 | Dry fire protection section penetration piping construction material |
| CN103899850B (en) * | 2014-03-20 | 2016-01-06 | 广东电网公司中山供电局 | For secondary cable auxiliary plugging device |
| CN105135065B (en) * | 2015-06-24 | 2018-03-27 | 中国建筑第八工程局有限公司 | Pipeline wears the fire proof construction and its construction method of bulkhead of light-weight steel keel plaster tablet |
| CN106704702B (en) * | 2016-12-14 | 2019-03-22 | 江西自立环保科技有限公司 | A kind of method that easy built-in pipe is added |
| CN110158802A (en) * | 2019-06-20 | 2019-08-23 | 应急管理部四川消防研究所 | A kind of fire-proof and explosion-proof structure with through hole |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154681U (en) * | 1984-03-26 | 1985-10-15 | 日立電線株式会社 | Airtight fireproof structure of duct penetration part |
-
1988
- 1988-06-02 JP JP63136223A patent/JP2614642B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01307584A (en) | 1989-12-12 |
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