JPH0723634B2 - Fireproof coating method - Google Patents
Fireproof coating methodInfo
- Publication number
- JPH0723634B2 JPH0723634B2 JP63033727A JP3372788A JPH0723634B2 JP H0723634 B2 JPH0723634 B2 JP H0723634B2 JP 63033727 A JP63033727 A JP 63033727A JP 3372788 A JP3372788 A JP 3372788A JP H0723634 B2 JPH0723634 B2 JP H0723634B2
- Authority
- JP
- Japan
- Prior art keywords
- fireproof coating
- steel
- sheet
- cement
- refractory material
- 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
Landscapes
- Building Environments (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、鉄骨柱や鉄骨梁などの鉄骨骨組の耐火被覆工
法に関するものである。Description: TECHNICAL FIELD The present invention relates to a fireproof coating method for a steel frame such as a steel column or a steel beam.
一般に、鉄骨構造の建物では柱や梁を火災から守る目的
で表面を耐火被覆する必要がある。従来、この種の耐火
被覆はセメント系の耐火材を塗布したり、不燃性のシー
トを巻きつけたりするものであった。Generally, in a steel structure building, it is necessary to cover the surface of the pillars and beams with fire in order to protect them from fire. Conventionally, this type of fireproof coating has been one in which a cement-based refractory material is applied or a nonflammable sheet is wound.
前者は、耐火材をコンプレッサーによって圧送して吹き
付けるか、あるいは左官鏝などで塗り付けるものであっ
た。In the former, the refractory material was pressure-fed by a compressor and sprayed, or it was applied with a plaster trowel or the like.
一方、後者は、柱や梁などの鉄骨軸組の表面に不燃性の
シートを巻きつけるとともに、予め鉄骨軸組の表面に突
設しておいたシート取付用のピンに引っ掛け固定する
か、あるいは、シートの上に結束線を巻きつけて固定す
るものであった。On the other hand, the latter wraps a non-combustible sheet around the surface of a steel framework such as a pillar or a beam, and hooks and fixes it on a sheet mounting pin that has been projected on the surface of the steel framework beforehand, The wrapping wire was wound around the sheet and fixed.
しかしながら、従来の工法によると、何れの工法におい
ても、鉄骨建て方の後に、足場などを利用して耐火被覆
施工を行うものであるため、作業性が落ちることが免れ
ないものであった。特にセメント系の耐火材を使用した
吹き付け工法によると、耐火被覆の厚みにばらつきが生
じ易く、施工誤差が大きくなるのが免れないものであっ
た。However, according to the conventional construction methods, in any construction method, since the fireproof coating construction is performed using the scaffolding or the like after the steel frame is constructed, the workability is unavoidable. In particular, according to the spraying method using a cement-based refractory material, the thickness of the fireproof coating tends to vary, and the construction error is unavoidable.
本発明は、このような従来工法の課題を解決するために
提案されたもので、現場における耐火被覆は継手部のみ
とし、しかもその耐火被覆はペースト状のセメント系耐
火材を塗り付けたシートを被覆部に接着することによっ
て行い、継手部を除く他の部分は工場などで予め行うこ
とにより現場における耐火被覆の施工をできるだけ少な
くして、施工精度の向上ならびに現場施工の簡単化、省
力化を可能にした耐火被覆工法を提供することを目的と
するものである。The present invention has been proposed to solve the problems of such conventional method, the fire-resistant coating in the field is only the joint portion, and the fire-resistant coating is a sheet coated with a paste cementitious refractory material. This is done by adhering to the coating part, and the other parts except the joint part are done in advance at the factory etc. to minimize the construction of fireproof coating on site, improve construction accuracy, simplify site construction, and save labor. It is an object of the present invention to provide a fireproof coating method that is made possible.
本発明は、鉄骨建物の柱や梁耐火被覆工法に関するもの
で、鉄骨柱および鉄骨梁の継手部を除く表面部の耐火被
覆は、予め地上において行い、前記継手部の耐火被覆
は、鉄骨軸組の組立後に、ペースト状のセメント系耐火
材を塗り付けたシートを被覆部に接着することによって
行うことを特徴とする。The present invention relates to a pillar or beam fireproof coating method of a steel building, in which the fireproof coating of the surface portion excluding the joint portion of the steel column and the steel beam is performed on the ground in advance, and the fireproof coating of the joint portion is a steel frame assembly. After assembly, the sheet is coated with a paste-type cement refractory material, and the sheet is adhered to the covering portion.
以下、本発明を図示する一実施例によって説明する。 Hereinafter, the present invention will be described with reference to an illustrated embodiment.
第２図および第３図において、建てつけられた柱１およ
び梁２の表面に耐火被覆３と４がそれぞれ施されてい
る。In FIGS. 2 and 3, fire resistant coatings 3 and 4 are applied to the surfaces of the built pillar 1 and beam 2, respectively.
耐火被覆３は、柱１および梁２の継手部5,5以外の表面
部Ａに施され、耐火被覆４は、継手部5,5に施される。The fireproof coating 3 is applied to the surface portions A of the pillar 1 and the beam 2 other than the joint portions 5 and 5, and the fireproof coating 4 is applied to the joint portions 5 and 5.
また、耐火被覆３の施工は、工場において鉄骨加工の後
に行われ、耐火被覆４の施工は、現場において鉄骨軸組
の建てつけの後に行われる。Further, the construction of the fireproof coating 3 is performed in the factory after the steel frame processing, and the construction of the fireproof coating 4 is performed in the field after the steel framework is built.
耐火被覆３には、セメント系の耐火材が使用され、セメ
ント、砂、添加剤を水で混練したペーストを表面部Ａに
所定の厚さになるまで吹きつけたり、既にパネル状に成
形されているセメント系耐火材を表面部Ａに張りつけた
りすることにより施工される。A cement-based refractory material is used for the fireproof coating 3, and a paste obtained by kneading cement, sand, and additives with water is sprayed onto the surface portion A to a predetermined thickness, or already formed into a panel shape. It is constructed by sticking a cement refractory material to the surface A.
耐火被覆４には、離型紙やロックウール、グラスウール
などの不燃性シートの上にセメント系耐火材を10mm程度
塗り付けたシートが使用される。施工に際してはセメン
ト系耐火材付きシートのセメント系耐火材側を継手部５
の形状に沿って押しつけ継手部５の表面全体にセメント
系耐火材を接着する。シート基材として離型紙を使用し
た場合はセメント系耐火材が適度に硬化して継手部５の
表面に接着した段階で表面より剥がす。セメント系耐火
材が所定の厚さになるまで、何回かセメント系耐火材付
きシートを貼り重ねる。このようにして、継手部５の表
面に所定の厚さのセメント系耐火材層が耐火被覆４とし
て形成される。シート基材が不燃性シートの場合は施工
時に不燃性シートを剥がさないので、貼り重ねによりセ
メント系耐火材と不燃性シートとの積層体が耐火被覆４
として形成される。As the fireproof coating 4, a sheet made by applying a cement-based refractory material on a noncombustible sheet such as release paper, rock wool, or glass wool by about 10 mm is used. At the time of construction, the cement refractory material side of the sheet with cement refractory material is the joint part 5
Cement-based refractory material is adhered to the entire surface of the pressing joint portion 5 along the shape of the above. When release paper is used as the sheet base material, the cement-based refractory material is peeled off from the surface when the cement-based refractory material is appropriately cured and adhered to the surface of the joint portion 5. Cement-based refractory sheet is laminated several times until the cement-based refractory material reaches the specified thickness. In this way, the cement-based refractory material layer having a predetermined thickness is formed as the refractory coating 4 on the surface of the joint portion 5. When the sheet base material is a non-combustible sheet, the non-combustible sheet is not peeled off during construction, so that the laminated body of the cement-based refractory material and the non-combustible sheet is fire-resistant coated by lamination.
Formed as.
本発明は、以上の構成からなるので、以下の効果を有す
る。Since the present invention has the above-mentioned configuration, it has the following effects.
（１）現場における耐火被覆の施工は継手部だけでよ
く、しかも継手部の施工は吹き付けによるものではな
く、シート基材にペースト状のセメント系耐火材を塗り
付けたシートを継手部表面に必要枚数貼り重ねることに
より行うものであるため、耐火被覆の現場施工に要する
時間を大幅に短縮でき、耐火被覆の厚さを均一にするこ
とができる。(1) On-site fire-resistant coating can be applied only to the joint, and the joint is not sprayed, but a sheet with paste-type cement refractory applied to the sheet base material is required on the joint surface. Since it is performed by laminating a plurality of sheets, the time required for on-site construction of the fireproof coating can be significantly reduced, and the thickness of the fireproof coating can be made uniform.
（２）作業足場は継手部の下のみに設置すればよいの
で、作業足場を大幅に減らすことが可能となり、工期の
大幅短縮化および工事費の大幅低減化を図ることができ
る。(2) Since the work scaffold needs to be installed only under the joint portion, the work scaffold can be significantly reduced, and the construction period and the construction cost can be significantly reduced.
第１図〜第６図は本発明の一実施例を示すもので、第１
図は耐火被覆が施された柱や梁などの鉄骨材の一部斜視
図、第２図は耐火被覆が施された鉄骨軸組の一部斜視
図、第３図および第４図は同じく耐火被覆が施された鉄
骨軸組の一部分解斜視図、第５図および第６図は耐火被
覆が施された鉄骨梁の断面図である。 １……柱、２……梁、3,4……耐火被覆、５……継手
部。1 to 6 show an embodiment of the present invention.
The figure shows a partial perspective view of a steel frame material such as columns and beams with a fireproof coating, Fig. 2 a partial perspective view of a steel frame framework with a fireproof coating, and Figs. FIG. 5 and FIG. 6 are partial exploded perspective views of the coated steel framework, and FIG. 5 and FIG. 6 are cross-sectional views of the steel beam with the fireproof coating. 1 ... Pillar, 2 ... Beam, 3,4 ... Fireproof coating, 5 ... Joint part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿知良 充 東京都調布市飛田給２丁目19番１号 鹿島 建設株式会社技術研究所内 (56)参考文献 特開 昭61−98841（ＪＰ，Ａ) 特開 昭62−211437（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuru Achi 2-19-1 Tobita-Su, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (56) Reference JP-A-61-98841 (JP, A) Kaisho 62-211437 (JP, A)
Claims (1)
の耐火被覆工法であって、前記鉄骨柱および鉄骨梁の継
手部を除く表面部の耐火被覆は、予め地上において行
い、前記継手部の耐火被覆は、鉄骨軸組の組立後に、ペ
ースト状のセメント系耐火材を塗り付けたシートを被覆
部に接着することによって行うことを特徴とする耐火被
覆工法。1. A fireproof coating method for a surface of a steel frame composed of a steel column, a steel beam, or the like, wherein the fireproof coating of the surface portion excluding the joint portion of the steel column and the steel beam is performed in advance on the ground. The fire-resistant coating method is characterized in that the fire-resistant coating of the portion is performed by assembling a sheet of paste-type cement-based fire-resistant material to the coating portion after assembling the steel framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033727A JPH0723634B2 (en) | 1988-02-16 | 1988-02-16 | Fireproof coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033727A JPH0723634B2 (en) | 1988-02-16 | 1988-02-16 | Fireproof coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01210544A JPH01210544A (en) | 1989-08-24 |
| JPH0723634B2 true JPH0723634B2 (en) | 1995-03-15 |
Family
ID=12394432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63033727A Expired - Lifetime JPH0723634B2 (en) | 1988-02-16 | 1988-02-16 | Fireproof coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723634B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH083212B2 (en) * | 1992-08-13 | 1996-01-17 | ミサワホーム株式会社 | Fireproof structure of unit building |
| JP7125297B2 (en) * | 2018-07-23 | 2022-08-24 | 大成建設株式会社 | Steel beam fireproof covering structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112947A (en) * | 1983-11-19 | 1985-06-19 | 株式会社長谷川工務店 | Refractory coating construction method of iron skeletal structure |
| JPH0663284B2 (en) * | 1984-10-22 | 1994-08-22 | 清水建設株式会社 | Steel construction method |
| JPH0713380B2 (en) * | 1986-03-10 | 1995-02-15 | 清水建設株式会社 | Steel frame fireproof coating method and fireproof coating material for construction |
| JPS62258032A (en) * | 1986-04-28 | 1987-11-10 | 株式会社竹中工務店 | Reinforcement refractory coating prefabricated construction method |
| JPS6272846A (en) * | 1986-09-19 | 1987-04-03 | ニチアス株式会社 | How to cover steel frames with fireproofing material |
-
1988
- 1988-02-16 JP JP63033727A patent/JPH0723634B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01210544A (en) | 1989-08-24 |
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