JPH0310241Y2 - - Google Patents
Info
- Publication number
- JPH0310241Y2 JPH0310241Y2 JP5096886U JP5096886U JPH0310241Y2 JP H0310241 Y2 JPH0310241 Y2 JP H0310241Y2 JP 5096886 U JP5096886 U JP 5096886U JP 5096886 U JP5096886 U JP 5096886U JP H0310241 Y2 JPH0310241 Y2 JP H0310241Y2
- Authority
- JP
- Japan
- Prior art keywords
- fiber felt
- ceramic fiber
- fireproof
- felt
- covering 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
Links
- 239000000463 material Substances 0.000 claims description 70
- 239000000835 fiber Substances 0.000 claims description 41
- 239000000919 ceramic Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000011490 mineral wool Substances 0.000 claims description 10
- 210000005069 ears Anatomy 0.000 claims description 9
- 239000011491 glass wool Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 21
- 238000000576 coating method Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 14
- 230000009970 fire resistant effect Effects 0.000 description 11
- 210000001503 joint Anatomy 0.000 description 9
- 239000004744 fabric Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Landscapes
- Building Environments (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、建物の鉄骨を耐火材で被覆する耐
火被覆材の改良に関するものである。[Detailed Description of the Invention] Industrial Application Field This invention relates to the improvement of a fire-resistant covering material 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の耐火被覆材と
して、ロツクウ−ルを主体とし、それにポルトラ
ンドセメント結合材を配合して調製した耐火材を
水溶性の溶液を添加した水と共に鉄骨表面に吹き
付けて構成する耐火被覆材、またはロツクウ−ル
にポルトランドセメントと水で粘稠ペ−スト状に
調製した耐火材をポンプで圧送してスプレ−ガン
で吹き付けて構成する耐火被覆材、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材が適
用されているが、吹き付けによる耐火被覆材の場
合には、作業環境が悪く、その作業に特別な技術
と熟練を必要とするばかりでなく、特別な機械を
必要とし、また構成した吹き付け被覆層の厚さや
密度は不均一となる傾向があり、しかも前述した
耐火被覆材に使われている繊維は耐熱性が600℃
以下しかないこと等が欠点とされており、一方、
成形板による耐火被覆材は加工性が悪く、取り付
けが困難で、複雑な形状部分への貼り付けができ
ず、かつ被覆材の重量に比べて強度が弱く、割れ
や欠けが生じ易い欠点がある。Conventional technology Conventionally, as a fire-resistant covering material for steel frames such as beams and columns of buildings, a fire-resistant material made mainly of rock wool and mixed with a Portland cement binder was used to coat steel frames with water to which a water-soluble solution was added. A fire-resistant coating material that is constructed by spraying it on the surface, or a fire-resistant coating material that is constructed by making a viscous paste of rock wool with Portland cement and water, pumping it with a pump and spraying it with a spray gun, or Fire-resistant coatings using molded plates such as asbestos-calcium silicate plates are pasted using a combination of adhesive and nails, but spray-on fire-resistant coatings require poor working conditions and are difficult to work with. Not only does this require special techniques and skills, but also special machinery, and the thickness and density of the constructed spray coating layer tends to be non-uniform; The fiber has a heat resistance of 600℃
The disadvantages are that there are only the following, on the other hand,
Fireproof covering materials made from molded plates have poor workability, are difficult to install, cannot be pasted onto areas with complex shapes, and have weak strength compared to the weight of the covering material, making them prone to cracking and chipping. .
前記吹き付け耐火被覆材および成形板による耐
火被覆材に代るものとしてロツクウ−ル、グラス
ウ−ル、石綿などの無機繊維を主材として形成し
たフエルトを鉄筋表面に取り付けて構成する耐火
被覆材が提案されている。 As an alternative to the above-mentioned spray-on fireproof coating and molded plate fireproof coating, a fireproof coating is proposed in which felt made mainly of inorganic fibers such as rock wool, glass wool, and asbestos is attached to the surface of reinforcing bars. has been done.
上記繊維フエルトによる耐火被覆材は、鉄骨へ
の取り付け作業環境が良く、かつ取り付けが容易
であり、均一な被覆層が得られることが長所とさ
れている。 The above-mentioned fireproof covering material made of fiber felt has the advantage that it provides a good working environment for installation on a steel frame, is easy to install, and can provide a uniform covering layer.
しかし、前記繊維フエルトに使用するロツクウ
−ル、グラスウ−ル、石綿などの無機繊維材料は
1000℃以上の耐火性能を要求されるところに適用
できない。 However, inorganic fiber materials such as rock wool, glass wool, and asbestos used for the fiber felt are
It cannot be applied where fire resistance over 1000℃ is required.
それに加え、繊維フエルトの使用にあつては、
鉄骨に取り付けた場合の突き付け目地に問題があ
る。この繊維フエルトは、鉄骨の取り付け作業を
容易にするため、一定寸法に製造したものを用
い、その繊維フエルトを順次に突き付けて接続す
るようにしているが、単に突き付けた場合には
JISA1304に基づく耐火試験において、火災によ
る繊維フエルトの収縮で突き付け目地部が開き、
この目地部が他の被覆部分より温度上昇が大きく
なることが指摘されていることから、その試験に
合格させるため、繊維フエルトの厚さを必要以上
に厚くしたものを使用するか、あるいは、あらた
に別の目地材を必要とする。 In addition, when using fiber felt,
There is a problem with the butt joints when installed on a steel frame. In order to facilitate the work of installing the steel frame, this fiber felt is manufactured to a certain size, and the fiber felts are connected in sequence by butting them together.
In a fire resistance test based on JISA1304, the butt joint opened due to shrinkage of the fiber felt due to fire.
It has been pointed out that the temperature rise in this joint area is greater than in other covering areas, so in order to pass the test, it is necessary to use fiber felt that is thicker than necessary, or to create a new one. requires a separate joint material.
考案が解決しようとする問題点
この考案は、前記繊維フエルトとして長所を生
かすと共に、安価な材料で1000℃以上の耐火性能
を具備し、しかも繊維フエルトを過剰な被覆厚さ
にしないでも、その突き付け目地部での温度上昇
を確実に阻止できる鉄骨の耐火被覆材を提供する
ことを主たる目的としているものである。Problems to be solved by this invention This invention takes advantage of the advantages of fiber felt, has a fire resistance of 1000℃ or more using an inexpensive material, and also solves the problem without using an excessively thick coating of fiber felt. The main purpose of this invention is to provide a fireproof coating for steel frames that can reliably prevent temperature increases at joints.
問題点を解決するための手段
この考案は、ロツクウ−ルフエルトまたはグラ
スウ−ルフエルトからなる基材と、セラミツク繊
維フエルトと、網状物とが順次に重ね合わせ、線
材で縫合して一体化した積層体の突き付け両端部
のうち、一方の突き付け端部ではセラミツク繊維
フエルトおよび網状物が所要長さにわたつて延長
突出する耳部となし、その耳部付き被覆材をセラ
ミツク繊維フエルトが外側になるように鉄骨面上
で順次に突き付け、その突き付け目地部のうえに
前記耳部を重ね合わせる構造とすることによつて
前述した欠点をすべて解消したものである。Means for Solving the Problems This invention is a laminate in which a base material made of rock wool felt or glass wool felt, ceramic fiber felt, and a mesh material are sequentially layered and sewn together with wire rods. At one of the two thrust ends, the ceramic fiber felt and net-like material extend over the required length to form an ear that protrudes, and the covering material with the ear is attached to the steel frame so that the ceramic fiber felt is on the outside. All of the above-mentioned drawbacks are solved by arranging the joints sequentially on the surface and overlapping the ear portions on the pierced joints.
実施例
第１図ないし第４図において、符号Ａで示した
ものは、この考案に係る耐火被覆材の一例を示し
たものであつて、被覆材はロツクウ−ルまたはグ
ラスウ−ルからなるフエルトが基材１とされ、そ
の片面にセラミツク繊維からなるセラミツク繊維
フエルト２が積層され、さらにそのうえにガラス
布からなる表面材３と網状物としての金属ラス４
とが重ね合わされ、それらが金属線材５の縫合で
一体化され、この積層体の突き付け両端部のう
ち、一方の突き付け端では、表面材３をもつセラ
ミツク繊維フエルト２および金属ラス４が所要長
さにわたつて延長突出する耳部ａとされ、この耳
部ａおよび他方の突き付け端部の金属ラス４はそ
れぞれセラミツク繊維フエルト２側と分離自在に
されている。前記耳部ａは突き付けられた耐火被
覆材の目地部に重ねられるもので、その突出長さ
は５〜100mmの範囲である。Embodiment In Figs. 1 to 4, the symbol A indicates an example of the fireproof covering material according to this invention, and the covering material is a felt made of rock wool or glass wool. A base material 1 is used, on one side of which a ceramic fiber felt 2 made of ceramic fibers is laminated, and on top of that, a surface material 3 made of glass cloth and a metal lath 4 as a net-like material are laminated.
The ceramic fiber felt 2 with the surface material 3 and the metal lath 4 are placed on top of each other and integrated by stitching with the metal wire 5, and at one of the two butted ends of this laminate, the ceramic fiber felt 2 with the surface material 3 and the metal lath 4 are attached to the required length. The ear portion a extends and projects over the entire length, and the ear portion a and the metal lath 4 at the other end are separable from the ceramic fiber felt 2 side. The ear portion a is overlapped with the joint portion of the fireproof covering material, and its protruding length is in the range of 5 to 100 mm.
前記セラミツク繊維フエルト２のセラミツク素
材としては、Al2O330〜70wt％、SiO270〜30wt％
の組成からなるものが好ましい。網状物として金
属ラスのほかに金属ネツト等が使用でき、金属ラ
スにはひし形金網、亀甲形金網などの金網が用い
られる。 The ceramic material of the ceramic fiber felt 2 includes Al 2 O 3 30-70 wt % and SiO 2 70-30 wt %.
It is preferable to have the following composition. In addition to metal lath, metal nets can be used as the net-like material, and wire meshes such as diamond-shaped wire meshes and hexagonal wire meshes are used as the metal laths.
上記の如く構成された耐火被覆材Ａを用いて鉄
骨Ｂを被覆するには、そのセラミツク繊維フエル
ト２を外側にして鉄骨Ｂに当て付け、隣り合う一
方の被覆材の耳部ａを形成しているセラミツク繊
維フエルト２を他方の被覆材の端部を形成してい
るセラミツク繊維フエルト２のうえに重ね、その
うえに端部側の金属ラス４を重ね、さらにそのう
えに耳部側の金属ラス４を重ね合わせ、それによ
つて被覆材の突き付け目地部を遮蔽する。６は建
物スラブである。 In order to cover the steel frame B with the fireproof sheathing material A configured as described above, the ceramic fiber felt 2 is applied to the steel frame B on the outside to form the ears a of one of the adjacent sheathing materials. The ceramic fiber felt 2 forming the end of the other covering material is layered on top of the ceramic fiber felt 2 forming the end of the other covering material, the metal lath 4 on the end side is layered on top of that, and the metal lath 4 on the edge side is layered on top of that. , thereby shielding the butted joint portion of the covering material. 6 is a building slab.
鉄骨面に当て付けた被覆材Ａを鉄骨に固定する
手段としては、溶接ガンによつて被覆材の外側か
ら鉄骨面に溶接ピン７を立てて保持する手段、ク
リツプ等の金属治具や爪立て金具等で保持する手
段を適用できる。また無機接着剤で接着する手段
を適用することもできる。 The means for fixing the sheathing material A applied to the steel frame surface include means of holding welding pins 7 upright on the steel frame surface from the outside of the sheathing material using a welding gun, metal jigs such as clips, and claw metal fittings. It is possible to apply a means of holding it by, etc. Further, it is also possible to apply means for adhering with an inorganic adhesive.
前記被覆材Ａの耳部ａおよびそれに突き付けら
れる被覆材の端部の各金属ラスを分離自在にして
おき、前記のように互い違いに入れこませた場合
には、被覆材同志の連結強化ならびに火災時にお
ける収縮に伴う突き付け目地部の開きの防止に効
果があるが、第５図に示すように、耳部ａをその
まま重ね合わせにしてもよい。 If the metal laths at the edges a of the sheathing material A and the ends of the sheathing material that are pressed against it are made separable and inserted alternately as described above, the connection between the sheathing materials will be strengthened and the fire will be prevented. Although this is effective in preventing the butted joint from opening due to shrinkage, the ears a may be overlapped as they are, as shown in FIG.
上記鉄骨の耐火被覆材の構成によれば、火災発
生の場合、直接1000℃以上の高温にさらされる表
面側に1300℃以上の耐火性と断熱性を有するセラ
ミツク繊維フエルト２が使用され、600℃以下の
温度となる内部には、同温度に充分に耐えるロツ
クウ−ルまたはグラスウ−ルからなる基材１が組
み合わされているので、同じ厚さでも、高価なセ
ラミツク繊維フエルトと同等の耐火性能が得られ
る。 According to the structure of the above-mentioned fireproof covering material for steel frames, ceramic fiber felt 2, which has fire resistance and heat insulation properties of 1300°C or higher, is used on the surface side that is directly exposed to high temperatures of 1000°C or higher in the event of a fire; The interior, which experiences the following temperatures, is combined with a base material 1 made of rock wool or glass wool that can withstand the same temperatures, so even with the same thickness, it has the same fire resistance as expensive ceramic fiber felt. can get.
加えて、被覆材Ａの突き付け目地部は被覆材Ａ
のセラミツク繊維フエルト２の延長耳部ａで遮蔽
されるので、目地部での耐火性能は格段と高めら
れる。 In addition, the butted joint part of the covering material A
Since it is shielded by the extended ears a of the ceramic fiber felt 2, the fire resistance at the joints is greatly improved.
第６Ａ図〜第６Ｂ図および第７図〜第７Ｂ図
は、延長耳部ａのない耐火被覆材と、耳部のある
耐火被覆材とに対して行なつた耐火性能試験にお
ける状態変化を示したものである。 Figures 6A to 6B and Figures 7 to 7B show state changes in fireproof performance tests conducted on fireproof sheathing without extended ears a and fireproof sheathing with ears. It is something that
供試体としての耐火被材は厚さ30mmのロツクウ
−ル基材１のうえに厚さ８mmのセラミツク繊維フ
エルト２を重ね、耳部ａの突出長さは50mmとし、
金属線材５の縫合で一体化したものである。 The fireproof covering material used as a specimen was a ceramic fiber felt 2 with a thickness of 8 mm overlaid on a rock wool base material 1 with a thickness of 30 mm, and the protruding length of the ear part a was 50 mm.
It is integrated by sewing metal wires 5 together.
試験方法は、JISA1304「建築構造部分の耐火試
験方法」のうち、鋼構造（梁）の試験を採用し、
耐火被覆材の各部の温度を測定した。その結果を
第８図のグラフに示した。このグラフ中、イおよ
びロは第６Ａ図〜第６Ｂ図の目地部温度および目
地部以外の一般部温度、ハおよびニは第7A図〜
第７Ｂ図の目地部温度および目地部以外の一般部
温度である。なお、鋼材温度は最高450℃以下、
平均350℃以下の制限があり、グラフ中に示して
ある。第９図は、第８図に対応させた加熱温度勾
配を示したグラフである。 The test method adopts the steel structure (beam) test from JISA1304 "Fire resistance test method for building structure parts",
The temperature of each part of the fireproof coating was measured. The results are shown in the graph of FIG. In this graph, A and B are the joint temperatures and general temperatures other than the joints in Figures 6A to 6B, and C and D are in Figures 7A to 6B.
FIG. 7B shows the temperature of the joint and the temperature of a general area other than the joint. In addition, the maximum steel temperature is 450℃ or less,
There is a limit of average temperature below 350℃, which is shown in the graph. FIG. 9 is a graph showing the heating temperature gradient corresponding to FIG. 8.
上記耐火性能試験において、第６Ａ図〜第６Ｂ
図の耐火被覆材の一般部温度ロは340℃で合格し
ているが、目地部は火災により第６Ｂ図のように
若干開くため、その目地部温度イは365℃をなり、
不合格とされた。 In the above fire resistance test, Figures 6A to 6B
The general temperature (B) of the fireproof covering material shown in the figure passes the test at 340°C, but the joint part opens slightly due to a fire as shown in Figure 6B, so the joint temperature (A) becomes 365°C.
It was deemed a failure.
これに対し、第７Ａ図〜第７Ｂ図の耐火被覆材
においては、目地部の開きはなく、一般部温度ニ
は第６Ａ図〜第６Ｂ図のものと同じであるが、目
地部温度ハは、前記耳部ａの重ね合わせで遮蔽さ
れ、かつ厚くなつているため、334℃と一般部温
度より６℃低くなり、試験に合格した。 On the other hand, in the fireproof covering materials shown in Figures 7A and 7B, there is no opening in the joints, and the general area temperature D is the same as that in Figures 6A and 6B, but the joint temperature C is , because it was shielded by the overlapping of the ears a and was thick, the temperature was 334°C, 6°C lower than the general part temperature, and it passed the test.
上記に述べた効果のほかに、前記耐火被覆材に
は、下記の効果が得られる。 In addition to the effects described above, the fireproof coating material has the following effects.
(1) 吹き付け被覆材でなく、貼り付け被覆材であ
るから、ホコリは殆んど発生しない。加えて、
セラミツク繊維フエルト２の上面にガラス布の
ような表面材３を重ね合わせた構成によれば、
施工後の繊維の飛散を完全に防止できる。(1) Since it is a pasted covering material rather than a sprayed covering material, almost no dust is generated. In addition,
According to the structure in which a surface material 3 such as glass cloth is superimposed on the top surface of the ceramic fiber felt 2,
Completely prevents fibers from scattering after construction.
(2) ホコリが発生しないから、養生シ−トなどを
使用する必要がない。(2) No dust is generated, so there is no need to use protective sheets.
(3) 水などを使わないから、被覆材の養生期間は
全く不要であり、施工期間の大巾の短縮化がで
きる。(3) Since no water is used, there is no need for a curing period for the covering material, and the construction period can be significantly shortened.
(4) 前記耐火被覆材は貼り付けるだけであるか
ら、熟練した技術は不要である。また、吹き付
け機のような特殊な大型機械も不要である。(4) Since the fireproof covering material can be simply pasted on, no skilled technique is required. Further, a special large machine such as a spray machine is not required.
(5) 前記耐火被覆材は接着剤や溶接ピン、爪立て
金具、クリツプ等で簡単容易に取り付けること
ができる。(5) The fireproof covering material can be easily attached using adhesives, welding pins, claw metal fittings, clips, etc.
(6) 前記耐火被覆材は複雑な形状に屈曲できるば
かりでなく、ハサミやカツタ−で簡単に切断で
きるため、加工は極めて容易である。(6) The fireproof covering material is extremely easy to process because it can be bent into complex shapes and also easily cut with scissors or cutters.
(7) 前記耐火被覆材は全体が繊維の成形体で、構
成されているので、従来の成形板のように、割
れや欠けを生じるおそれがない。(7) Since the fireproof covering material is entirely composed of a molded body of fibers, there is no risk of cracking or chipping unlike conventional molded plates.
(8) 前記耐火被覆材は工場製品として製作できる
ので、厚さや密度がムラなく均一であり、品質
に優れる。(8) Since the fireproof covering material can be manufactured as a factory product, it has a uniform thickness and density, and is of excellent quality.
(9) 前記セラミツク繊維フエルトのうえに金属ラ
スが重ね合わされ、一体化された構成耐火被覆
材の使用によれば、繊維層からにる被覆剤の補
強と施工中での損傷防止に効果がある。(9) The use of a fire-resistant coating material in which a metal lath is layered on top of the ceramic fiber felt and integrated is effective in reinforcing the coating material made of the fiber layer and preventing damage during construction. .
(10) また、セラミツク繊維フエルトの表面にガラ
ス布を重ね合わせて一体化した構成の耐火被覆
材の使用によれば、とくに施工後の繊維の飛散
を確実に防止できる利点があり、かつ表面性状
の向上と化粧可能な耐火被覆材が得られる。(10) In addition, the use of a fire-resistant coating material that is made by overlapping glass cloth on the surface of ceramic fiber felt has the advantage of reliably preventing the scattering of fibers after installation, and improving the surface quality. This results in improved fire resistance and a decorative fire-resistant coating.
(11) さらに前記耐火被覆材は、フエルト状のもの
であるから、梁や柱部分への先付け工法も可能
である。(11) Furthermore, since the fireproof covering material is felt-like, it is also possible to apply it to beams and columns in advance.
考案の効果
以上に述べたように、この考案によれば、ロツ
クウ−ルフエルトまたはグラスウ−ルフエルトか
らなる基材と、セラミツク繊維フエルトと、金属
ラスとが重ね合わされ、線材で縫合して一体化さ
れた積層体の突き付け両端部のうち、一方の突き
付け端部ではセラミツク繊維フエルトおよび金属
ラスが所要長さにわたつて延長突出する耳部とさ
れ、この耳部の網状物ならびに他方の突き付け端
部の金属ラスがセラミツク繊維フエルトと一体ま
たは分離自在とされているので、同じ厚さでも高
価なセラミツク繊維と同等の耐火性能を躍ると共
に、突き付け目地部にあつても優れた耐火断熱性
能を有する鉄骨用耐火被覆材が得られる。Effects of the invention As described above, according to this invention, a base material made of rock wool felt or glass wool felt, a ceramic fiber felt, and a metal lath are overlapped and sewn together with a wire rod. Of the two butted ends of the laminate, ceramic fiber felt and metal lath extend over a required length to form an ear that protrudes from one of the two butted ends, and the net-like material of this ear and the metal of the other butted end Because the lath is integrated with or can be separated from the ceramic fiber felt, it has the same fire resistance as expensive ceramic fiber even at the same thickness, and has excellent fire resistance and heat insulation performance even in butt joints. A covering material is obtained.
第１図はこの考案の一実施例を示す鉄骨の耐火
被覆材を鉄骨に取り付け状態の断面図、第２図は
斜視図、第３図は突き付けた耐火被覆材の拡大斜
視図、第４図は耳部を有する耐火被覆材の要部の
側面図、第５図は他の実施例による耐火被覆材の
斜視図、第６Ａ図〜第６Ｂ図および第７Ａ図〜第
７Ｂ図は耐火性能試験の状態変化を示す説明図、
第８図は耐火被覆材の各部の温度を示すグラフ、
第９図は加熱温度勾配を示すグラフである。
Ａ……耐火被覆材、１……基材、２……セラミ
ツク繊維フエルト、ａ……耳部、３……ガラス布
の表面材、４……金属ラス、５……金属線材、Ｂ
……鉄骨、６……建物スラブ、７……溶接ピン。
Fig. 1 is a cross-sectional view of a steel frame fireproof sheathing installed on a steel frame, showing an embodiment of this invention; Fig. 2 is a perspective view; Fig. 3 is an enlarged perspective view of the fireproof sheathing applied; Fig. 4 is a side view of the main part of a fireproof covering material having ears, FIG. 5 is a perspective view of a fireproof covering material according to another example, and FIGS. 6A to 6B and 7A to 7B are fire resistance performance tests. An explanatory diagram showing changes in the state of
Figure 8 is a graph showing the temperature of each part of the fireproof coating.
FIG. 9 is a graph showing the heating temperature gradient. A... Fireproof covering material, 1... Base material, 2... Ceramic fiber felt, a... Ear part, 3... Surface material of glass cloth, 4... Metal lath, 5... Metal wire, B
...Steel frame, 6...Building slab, 7...Welding pin.
Claims (1)
ルトからなる基材と、セラミツク繊維フエルト
と、網状物とが順次に重ね合わされ、線材で縫合
して一体化された積層体の突き付け両端部のう
ち、一方の突き付け端部ではセラミツク繊維フエ
ルトおよび網状物が所要長さにわたつて延長突出
する耳部とされ、この耳部の網状物ならびに他方
の突き付け端部の網状物がセラミツク繊維フエル
トと一体または分離自在とされていることを特徴
とする鉄骨の耐火被覆材。 One of the two thrust ends of a laminate in which a base material made of rock wool felt or glass wool felt, ceramic fiber felt, and a net-like material are successively stacked and sewn together with a wire rod. In this method, the ceramic fiber felt and the net-like material are used as ears that extend and protrude over a required length, and the net-like material of the ears and the net-like material at the other end are made to be integral with the ceramic fiber felt or can be separated. A fireproof covering material for steel frames characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5096886U JPH0310241Y2 (en) | 1986-04-05 | 1986-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5096886U JPH0310241Y2 (en) | 1986-04-05 | 1986-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62163206U JPS62163206U (en) | 1987-10-16 |
| JPH0310241Y2 true JPH0310241Y2 (en) | 1991-03-14 |
Family
ID=30874810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5096886U Expired JPH0310241Y2 (en) | 1986-04-05 | 1986-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310241Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2820649B2 (en) * | 1995-11-14 | 1998-11-05 | イソライト工業株式会社 | Fireproof coating method for steel materials |
-
1986
- 1986-04-05 JP JP5096886U patent/JPH0310241Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62163206U (en) | 1987-10-16 |
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