JPS6272846A - Method for covering steel bar with refractory material - Google Patents
Method for covering steel bar with refractory materialInfo
- Publication number
- JPS6272846A JPS6272846A JP22162886A JP22162886A JPS6272846A JP S6272846 A JPS6272846 A JP S6272846A JP 22162886 A JP22162886 A JP 22162886A JP 22162886 A JP22162886 A JP 22162886A JP S6272846 A JPS6272846 A JP S6272846A
- Authority
- JP
- Japan
- Prior art keywords
- felt material
- steel frame
- coating
- fireproof
- covering
- 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.)
- Pending
Links
Landscapes
- Building Environments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、建物の鉄骨を耐火材で被覆する耐火被覆工
法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an improvement in a fire-resistant coating method for covering the steel frame of a building with a fire-resistant material.
従来の技術
従来、建物の梁や柱などの鉄骨に耐火材を被覆する工法
として、ロックウールを主材とし、それにポルトランド
セメント結合材、水溶性粉末質有機糊材を配合して調製
した耐火材を水と共に鉄骨表面に吹き付ける乾式の耐火
被覆工法、またはロックウールにポルトランドセメント
と水で粘稠ペースト状に調製した耐火材をポンプで圧送
してスプレーガンで吹き付ける湿式の耐火被覆工法、あ
るいは石綿珪酸カルシウム板のような成形板を接着剤と
釘を併用して貼り付ける成形板による耐火被覆工法が適
用されている。Conventional technology Traditionally, as a method of coating steel frames such as beams and columns of buildings with fireproofing materials, fireproofing materials were prepared by blending rock wool as the main material with a Portland cement binder and a water-soluble powdered organic glue. A dry fireproof coating method in which the steel surface is sprayed with water, or a wet fireproof coating method in which a viscous paste of rock wool, Portland cement and water is pumped and sprayed with a spray gun, or asbestos silicate. A fireproof coating method using molded plates, such as calcium plates, is applied using a combination of adhesive and nails.
しかし、前述した乾式、湿式吹き付は耐火被覆工法にあ
っては、下記の如き欠点がある。However, the above-mentioned dry and wet spraying methods have the following drawbacks when it comes to fireproof coating methods.
（イ）ホコリが出るため、作業環境が想＜、作業中は他
の作業員が同時に仕事ができない。(b) Because of the dust generated, the work environment is poor and other workers cannot work at the same time.
（ロ）ホコリが多いため、吹き付は作′！ｔｊ場所の周
辺をシートで囲って屋外にホコリを出さないようにし、
また床や壁が汚れないようにシートを敷く必要がある。(b) There is a lot of dust, so don't spray! tj Surround the area with a sheet to prevent dust from entering the outdoors.
It is also necessary to spread sheets to prevent the floors and walls from getting dirty.
（ハ）水を使うため、被覆材が硬化するまで、夏期は１
ケ月、冬期は２ケ月の養生期間が必要である。(c) Since water is used, it takes 1 hour in the summer until the coating material hardens.
A curing period of two months is required during winter.
（ニ）現場作業であるため、表面の仕上げが作業員の技
術に左右され、一般に表面性状が悪い。(d) Since the work is done on-site, the surface finish depends on the skill of the worker, and the surface quality is generally poor.
（ホ）吹き付は作業には特別な技術、熟練を必要とする
。(e) Spraying requires special techniques and skill.
（へ）現場作業のため、被覆層の厚さや密度が不均一で
ある。(f) Due to on-site work, the thickness and density of the coating layer is uneven.
（ト）吹き付は作業には特別な８１減が必要である。(g) Spraying requires a special 81 reduction for work.
一方、成形板による被覆施工にあっては、その耐火被覆
材が硬い成形板であるため、鉄骨の曲面部分や屈曲部分
、配管回りなどの７ｇ雑な形状部分への被５施工が困難
であり、また鉄骨の形状寸法に合わせて切断するのに、
ダイヤモンドソーや丸鋸ソーのような特殊な切断工具を
必要とし、かつその切断作業に多大の労力を要するため
、作業性か非常に悪く、しかも成形板の切断時に作業者
の健康を害する粉塵を多量に発生するなど、不都合な問
題を多くかかえている。On the other hand, in the case of coating construction using molded plates, since the fireproof coating material is a hard molded plate, it is difficult to apply the coating to rough-shaped parts such as curved parts of steel frames, bent parts, and around piping. , and for cutting to match the shape and dimensions of the steel frame.
It requires special cutting tools such as diamond saws and circular saws, and the cutting work requires a lot of effort, which makes the work very difficult and also creates dust that harms the health of the workers when cutting the formed plate. It has many inconvenient problems, such as its occurrence in large quantities.
発明が解決しようとする問題点
この発明は、前述した乾式、湿式の吹き付は耐火被覆工
法および成形板貼り付は耐火被覆工法のすべての欠点を
解消するためになされたものであって、吹き付は工法と
比べてホコリの発生か殆んどなく、また熟練した施工技
術を必要とせず、しかも施工期間の大巾な短縮化ができ
る鉄骨の耐火被覆工法を提供することを主たる目的とし
ているものである。Problems to be Solved by the Invention The present invention has been made in order to eliminate all the drawbacks of the above-mentioned dry and wet spraying methods for fire-resistant coating and molded board pasting for fire-resistant coating methods. The main purpose of this project is to provide a fireproof coating method for steel frames that generates almost no dust compared to the cladding method, does not require skilled construction techniques, and can significantly shorten the construction period. It is something.
問題点を解決するための手段
この発明による鉄骨の耐火被覆方法は、鉄骨を被覆する
耐火被覆材に無機繊維を主材として形成したフェルト材
な用い、このフェルト材を！！機接接着剤よって鉄骨面
に接着することを特徴とするものである。Means for Solving the Problems The fireproof covering method for steel frames according to the present invention uses a felt material mainly made of inorganic fibers as a fireproof covering material for covering the steel frames. ! It is characterized by being adhered to steel surfaces using a mechanical adhesive.
前記無機繊維としては、ロックウール、グラスファイバ
ー、石綿、セラミックファイバーなどが用いられる。As the inorganic fiber, rock wool, glass fiber, asbestos, ceramic fiber, etc. are used.
前記フェルト材を鉄骨面に接着するための無機接着剤は
、従来周知のものを任意に選択使用できるものであって
、施工現場にて、フェルト材あるいは鉄骨面に塗布し、
フェルト材を鉄骨面に押しつけるだけで、被覆が簡単に
できる。The inorganic adhesive for bonding the felt material to the steel surface can be selected from any conventionally known inorganic adhesive, and is applied to the felt material or the steel surface at the construction site.
Coating can be easily done by simply pressing the felt material onto the steel surface.
実施例
第１図は、フェルト材（１）をＨ型梁鉄骨（２）に接着
して被覆した状態を示したもので、第２図は、フェルト
材（１）が鉄骨（２）に無機接着剤（３）を介して接着
された要部の拡大断面図である。（４）は建物のスラブ
である。Example Fig. 1 shows a state in which felt material (1) is bonded and coated to H-shaped beam steel frame (2), and Fig. 2 shows that felt material (1) is coated with inorganic material on steel frame (2). FIG. 3 is an enlarged cross-sectional view of main parts adhered via adhesive (3). (4) is the slab of the building.
前記のように、耐火被覆材として、無機繊維を主材とし
て形成したフェルト材を用い、それを！Ｅ機接接着剤接
着して被覆する方法によれば、下記の効果が得られる。As mentioned above, felt material made mainly of inorganic fibers is used as the fireproof covering material, and! According to the E-machine adhesive bonding and coating method, the following effects can be obtained.
（１）前記無機繊維を主材として形成したフェルト材は
、鉄骨の４４火被覆材として、すぐれた性能を具備して
いる。(1) The felt material made mainly of inorganic fibers has excellent performance as a 44-fire covering material for steel frames.
（２）前記フェルト材は、特殊な切断工具を必要とせず
、ナイフ、包丁、鋏などの簡単な切断工具で切断できる
。(2) The felt material does not require a special cutting tool and can be cut with a simple cutting tool such as a knife, kitchen knife, or scissors.
（３）前記フェルト材は、切断時に粉塵の発生がないか
ら、作業者の健康を害するおそれは全くない。(3) Since the felt material does not generate dust when cut, there is no risk of harming the health of the worker.
（４）前記フェルト材は、Ｍ度の柔軟性と可撓性を具え
ているので、３６０度まで屈曲可能であり、また筋付は
機による筋付は加工も容易であるから、鉄骨の端部、角
部、曲面部、屈曲部、配管回わりなどへの被覆が隙間な
く一体的にできるから、完全な耐火断熱被覆を形成する
ことができる。(4) The felt material has M degrees of flexibility and flexibility, so it can be bent up to 360 degrees, and since it is easy to process the creasing with a machine, it can be used at the end of the steel frame. Since the coating can be applied to parts, corners, curved surfaces, bent parts, around pipes, etc. without any gaps, a complete fireproof and heat-insulating coating can be formed.
（５）前記フェルト材は硬質の成形板に比べて吸音率が
大きく、建物内で発生する騒音、振動の吸収に効果があ
る。(5) The felt material has a higher sound absorption coefficient than a hard molded plate, and is effective in absorbing noise and vibration generated within a building.
（６）前記フェルト材に化粧フェルト材を使用する場合
には、耐火被覆後の化粧施工を省くことができる。(6) When a decorative felt material is used as the felt material, the decorative work after the fireproof coating can be omitted.
（７）前記フェルト材の使用によれば、前述したように
、切断が容易で鉄骨への被覆施工が簡単にできるから、
耐火被覆施工の作業性を大巾に改善向上させることがで
きる。またフェルト材の場合には、長尺でロール状にし
たものが使用できるので、作業性の向上に寄与できるう
え、切断切り落しによる被覆材料の損失を少なく抑える
ことができる。(7) By using the felt material, as mentioned above, it is easy to cut and can be easily applied to cover the steel frame.
The workability of fireproof coating construction can be greatly improved. Further, in the case of felt material, it is possible to use a long rolled material, which not only contributes to improving workability but also suppresses loss of covering material due to cutting off.
（８）前記フェルト材は軽量であるから、これを梁や柱
などの鉄骨に被覆しても、鉄骨に与える荷重負担は少な
い。(8) Since the felt material is lightweight, even if it is coated on a steel frame such as a beam or column, the load imposed on the steel frame is small.
（９）前記フェルト材の場合、それに二−ドリング加工
を施して被覆材の強度増大が簡単にできる。(9) In the case of the felt material, the strength of the covering material can be easily increased by subjecting it to needling processing.
発 明 の 効 果
以上に述べたように、この発明によれば、無機繊維を主
材として形成したフェルト材を１（大波覆材に用い、こ
のフェルト材を無機接着剤によって鉄骨面に接着するも
のであるから、従来の吹き付は耐火被覆工法あるいは成
形板貼り付は耐火被覆工法のｒ＝Ｉ題点をすべて解消し
、鉄骨への耐火被覆材の施工技術分へ大きく貢献するこ
とができる。Effects of the Invention As described above, according to the present invention, a felt material made mainly of inorganic fibers is used as a wave covering material, and this felt material is bonded to a steel frame surface with an inorganic adhesive. Therefore, the conventional spraying method or pasting of molded plates can solve all the r = I problems of fireproof coating methods and can greatly contribute to the construction technology of fireproof coating materials on steel frames. .
第１図は鉄骨に耐火材を接着被覆した状態を示す鉄骨被
覆部分の断面図、第２図はその要部の拡大断面図である
。
（１）・・・フェルト材、（２）・・・鉄骨、（３）・
・・無機接着剤、（４）・・・スラブ。FIG. 1 is a sectional view of a steel frame covered portion showing a state in which a refractory material is adhesively coated on a steel frame, and FIG. 2 is an enlarged sectional view of a main part thereof. (1)...Felt material, (2)...Steel frame, (3)...
...Inorganic adhesive, (4)...Slab.
Claims (1)
て形成したフェルト材を用い、このフェルト材を無機接
着剤によつて鉄骨面に接着することを特徴とする鉄骨を
耐火材で被覆する方法。(1) A felt material made mainly of inorganic fibers is used as the fireproof covering material covering the steel frame, and this felt material is bonded to the steel frame surface with an inorganic adhesive.The steel frame is coated with a fireproof material. how to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22162886A JPS6272846A (en) | 1986-09-19 | 1986-09-19 | Method for covering steel bar with refractory material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22162886A JPS6272846A (en) | 1986-09-19 | 1986-09-19 | Method for covering steel bar with refractory material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6272846A true JPS6272846A (en) | 1987-04-03 |
Family
ID=16769744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22162886A Pending JPS6272846A (en) | 1986-09-19 | 1986-09-19 | Method for covering steel bar with refractory material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6272846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01210544A (en) * | 1988-02-16 | 1989-08-24 | Kajima Corp | Fire-proof covering construction |
| JPH0235145A (en) * | 1988-06-10 | 1990-02-05 | Koomitsukusu:Kk | Fireproof covering material of composite flexible sheet type and method for laying said material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4417964Y1 (en) * | 1964-05-07 | 1969-08-04 | ||
| JPS54141442A (en) * | 1978-04-26 | 1979-11-02 | Isolite Insulating Prod | Fireeproof heat insulating wall |
-
1986
- 1986-09-19 JP JP22162886A patent/JPS6272846A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4417964Y1 (en) * | 1964-05-07 | 1969-08-04 | ||
| JPS54141442A (en) * | 1978-04-26 | 1979-11-02 | Isolite Insulating Prod | Fireeproof heat insulating wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01210544A (en) * | 1988-02-16 | 1989-08-24 | Kajima Corp | Fire-proof covering construction |
| JPH0235145A (en) * | 1988-06-10 | 1990-02-05 | Koomitsukusu:Kk | Fireproof covering material of composite flexible sheet type and method for laying said material |
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