CN201952930U - Steel bar fireproof coating structure - Google Patents
Steel bar fireproof coating structure Download PDFInfo
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- CN201952930U CN201952930U CN2010206214181U CN201020621418U CN201952930U CN 201952930 U CN201952930 U CN 201952930U CN 2010206214181 U CN2010206214181 U CN 2010206214181U CN 201020621418 U CN201020621418 U CN 201020621418U CN 201952930 U CN201952930 U CN 201952930U
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Abstract
The utility model provides a dry type steel bar fireproof coating structure high in construction convenience, wherein the full fireproof performance can be obtained only by adopting a certain thin coating thickness compared with the prior art. The steel bar fireproof coating structure comprises H-type or I-type steel bars for forming the steel bar structure and foaming fireproof sheets covering the H-type or I-type steel bars. The H-type or I-type steel bars are equipped with the plurality of foaming fireproof sheets arranged along the length direction thereof. The mutual joint portion of the foaming fireproof sheets is equipped with a superposed part and the superposed part is fixed by a binding agent.
Description
Technical field
The utility model relates to a kind of new reinforcing steel bar fireproof coating structure.
Background technology
Works such as building, building structure, when running into fire etc. and scorched by high temperature, the physical strength that constitutes the reinforcing bar of these works can descend rapidly.
To this, people have developed a kind of fireproof coating structure, are covered with the fireproof coating material on reinforcing bar, during breaking out of fire, can delay the rising of reinforcing bar temperature, thereby suppress the decline of reinforcing steel bar machinery intensity.
As above-mentioned fireproof coating structure, for example, we have known that the mixture that has suitably sneaking into inorganic fibre shape material, lightgage steel joist in inanimate matter adhesives such as cement, containing the formations such as inanimate matter powder of the crystallization water is coated with the wet type fireproof coating structure (spy opens clear 58-96662 communique, the spy opens flat 10-147993 communique etc.) that forms at rebar surface thickly.
But in above-mentioned fireproof coating structure, the material category difference according to using in order to obtain sufficient fire resistance, need reach the lining thickness about 20～40mm.In addition, on reinforcing bar,, need to determine certain lining thickness in order to obtain uniform fire resistance.And, need a large amount of coating materials in when construction, so, all very unfavorable aspect construction convenience, cost etc.
In addition, also there is alternative method, promptly adopts the fireproof coating method (spy opens flat 6-136853 communique, the spy opens 2001-98661 communique etc.) of dry type materials such as inorfil mixed mat, rock wool, refractory slab as above-mentioned wet type fireproof coating method.But,,, also need lining thickness is thickened in order to obtain sufficient refractoriness even adopt the method for this lining dry type material.
The utility model content
The purpose of this utility model is to provide a kind of convenience height of constructing, needs adopted thin certain lining thickness just can obtain the dry type reinforcing bar fireproof coating structure of abundant fire resistance with only comparing in the past.
The utility model provides a kind of reinforcing bar flame-retardant structure with following feature.
1, a kind of reinforcing bar fireproof coating structure, constitute with fire-resistant of the foaminess that covers described H type or I shaped steel muscle by H type that constitutes the bar construction thing or I shaped steel muscle, it is characterized in that: the length direction of described H type or I shaped steel muscle is provided with fire-resistant of a plurality of foaminess, fire-resistant mutual blank area of this foaminess has coincidence part, and this coincidence part is fixed by adhesive.
2, a kind of reinforcing bar fireproof coating structure, constitute with fire-resistant of the foaminess that covers described H type or I shaped steel muscle by H type that constitutes the bar construction thing or I shaped steel muscle, it is characterized in that: the length direction of described H type or I shaped steel muscle is provided with fire-resistant of a plurality of foaminess, fire-resistant mutual blank area of this foaminess has coincidence part, this coincidence part is fixed by adhesive, and the lower flange and fire-resistant of the foaminess of described H type or I shaped steel muscle are fixed by adhesive.
3, in above-mentioned the 1st or the 2nd described reinforcing bar fireproof coating structure, it is characterized in that: fire-resistant of described foaminess contains resinous principle, fire retardant, blowing agent, carburization agent and filler.
4, in above-mentioned the 1st or the 2nd described reinforcing bar fireproof coating structure, it is characterized in that: the back side that described foaminess is fire-resistant is laminated the cellulosic sheet.
Description of drawings
Fig. 1 is the sectional view of an example of demonstration reinforcing bar incombustible construction described in the utility model;
Fig. 2 is the oblique view of an example of demonstration reinforcing bar incombustible construction described in the utility model;
Fig. 3 is the cross section enlarged drawing of an example of the coincidence part of fire-resistant of the foaminess that shows reinforcing bar incombustible construction described in the utility model;
Fig. 4 is for showing another routine sectional view of reinforcing bar incombustible construction described in the utility model;
Fig. 5 is for showing another routine oblique view of reinforcing bar incombustible construction described in the utility model;
Fig. 6 (a)～(c) is for showing the routine sectional view of another change of reinforcing bar incombustible construction of the present utility model;
Fig. 7 (a)～(b) is for showing another routine sectional view of reinforcing bar incombustible construction of the present utility model.
The specific embodiment
Reinforcing bar fireproof coating structure of the present utility model is made of with the fire-resistant institute of foaminess that is designed to cover above-mentioned H type or I shaped steel muscle the H type that constitutes the bar construction thing or I shaped steel muscle.
It is characterized in that the length direction of above-mentioned H type or I shaped steel muscle is provided with fire-resistant of a plurality of foaminess, fire-resistant mutual blank area of this foaminess has coincidence part, and this coincidence part is fixed by adhesive.
Fig. 1～Fig. 3 has shown an example of reinforcing bar fireproof coating structure described in the utility model.
Fig. 1 is the sectional view of an example of demonstration reinforcing bar incombustible construction of the present utility model.In Fig. 1, constitute 3 of the H shaped steel muscle 1 behind fire-resistant 2 of foaminess and air layer 7 face that common covering is removed with flooring material contacts with fire-resistant 2 of foaminess by the H shaped steel muscle 1 that is arranged on the flooring material 4.
As H shaped steel muscle of the present utility model, its cross section is the H font, and its upper flange 1a is connected by tabular gusset 1c with lower flange 1b.The outside is parallel in the flange width broad of H shaped steel muscle, flange.
In addition, in the utility model, a side that will be connected with flooring material or wall material is called upper flange, and its opposite side is called lower flange.
Fire-resistant 2 of foaminess of the present utility model when because fire etc. when causing that ambient temperature reaches the blowing temperature of defined, can foam, forms the carbonization isolation layer.The constituent that foaminess is fire-resistant 2 preferably contains resinous principle, fire retardant, blowing agent, carburization agent and filler.Wherein, resinous principle is thermoplastic resins such as allyl resin, and fire retardant is an APP etc., and blowing agent is melamine, dicyano diamides, Celogen Az etc., and carburization agent is pentaerythrite, dipentaerythritol etc., and filler is a titanium dioxide etc.
About the cooperation ratio of each composition, usually, convert according to solid, for resinous principle 100 weight portions, fire retardant is 200～600 weight portions, and blowing agent is 40～150 weight portions, and carburization agent is 40～150 weight portions, and filler is 50～160 weight portions.
The thickness that foaminess is fire-resistant 2 is generally 0.5～5mm according to using position etc. suitably to set, and is preferably 1～4mm.
In addition, fire-resistant 2 of foaminess described in the utility model also can only be made of the sheet material that contains above-mentioned constituent, and the back side (H shaped steel muscle 1 side) is laminated a cellulosic sheet but be preferably in.Like this, can suppress the foaming of cellulosic sheet one side of fire-resistant 2 of foaminess, thereby can only foam, form the carbonization isolation layer to a direction.In addition, has the effect that the carbonization isolation layer that well prevents to form comes off.
This cellulosic sheet for example can adopt the sheet material that contains organic fiber, inorfil etc.
Organic fiber can adopt paper pulp fiber, polyester fiber, polypropylene fibre, aramid fiber, vinylon fiber, polyethylene fibre, polyarylate fiber, pbo fiber, nylon fiber, tacryl, vinyl chloride fibers, cellulose fibre etc., or their weaving cloth, nonwoven etc.Even it is also passable that organic fiber becomes liquid condition in the temperature province thawing that reaches 150 ℃, be preferably in this temperature province and do not melt.
Inorfil for example can adopt rock wool, glass fiber, silicon dioxide fibre, silica-alumina fiber, carbon fiber, silicon carbide fibre etc., or their weaving cloth, nonwoven etc., and can adopt the filament of iron, copper etc.Even these inorfil heating are not melted yet, and can play humidification, keep the carbonization isolation layer of foaming, have the excellent effect that the carbonization isolation layer comes off from H shaped steel muscle 1 that prevents.If especially inorfil has network, fire-resistant 2 of enhanced foaming reaches it heated formed carbonization isolation layer more effectively, prevents that it from coming off from H shaped steel muscle 1.
The composite sheet of cellulosic sheet for constituting by inorfil and organic fiber, this inorfil is for being arranged in latticed sheet material, its at least one surface layer closes the weaving cloth or the nonwoven of organic fiber, and part or all of the grid of inorfil preferably filled by organic fiber.By inorfil and organic fiber are made up, can adsorb the composition that is dissolved by heat, thereby can prevent peeling off of blank area etc.In addition, fill grid with organic fiber after, making fire-resistant of foaminess at 2 o'clock, the network of inorfil is not easy to crumble, can be so that make.
Fig. 2 is the oblique view of Fig. 1.In Fig. 2, the length direction of H shaped steel muscle 1 is provided with fire-resistant 2 of a plurality of foaminess, and the mutual blank area that this foaminess is fire-resistant 2 has coincidence part A.In addition, fire-resistant 2 of flooring material 4 and foaminess use metal buckle 6 such as steady pin to fix in the end of fire-resistant 2 of foaminess.
Fig. 3 is the cross section expanded view of the coincidence part A of fire-resistant of the foaminess of Fig. 2.In Fig. 3, the coincidence part A of the mutual blank area that foaminess is fire-resistant 2 is fixed by adhesive 3.
As mentioned above, the mutual intersection that foaminess is fire-resistant 2 is fixed by adhesive, like this, can prevent that H shaped steel muscle 1 from directly exposing from the joint of sheet material, when high temperature such as breaking out of fire, can positively suppress the decline of the physical strength of H shaped steel muscle 1, positively suppress the decline of fire resistance.
The width of the mutual coincidence part that each foaminess is fire-resistant 2 can suitably be set, and is generally about 5mm～100mm, is preferably about 10mm～40mm.
The thickness of adhesive 3 can suitably be set according to using part to wait, and is generally about 0.01mm～0.5mm, is preferably about 0.02mm～0.1mm.
Adhesive 3 in the utility model for example can adopt such as being the water-dispersion type of primary raw material, water-soluble sexual type, solvent type adhesive etc. with allyl resin, epoxy resin, vinylite, phenolic resins, polyester polyamine formic acid esters, paraffin resin etc.As required, can in adhesive 3, add the fire retardant, blowing agent, carburization agent, filler etc. of above-mentioned fire-resistant 2 kinds of cooperations of foaminess.In addition, in the utility model, also comprise bonding adhesive in the adhesive.
Fig. 4～6 have shown the best one example of reinforcing bar fireproof coating structure of the present utility model.
Fig. 4 is the sectional view of an example of demonstration reinforcing bar incombustible construction of the present utility model.In Fig. 4, constitute 3 of the H shaped steel muscle 1 behind fire-resistant 2 of foaminess and air layer 7 face that common covering is removed with flooring material contacts with fire-resistant 2 of foaminess by the H shaped steel muscle 1 that is arranged on the flooring material 4.And fire-resistant 2 of the foaminess that covers the lower flange 1b of H shaped steel muscle 1 is fixed by adhesive 3.
In addition, Fig. 5 is the oblique view of Fig. 4.The length direction of H shaped steel muscle 1 is provided with fire-resistant 2 of a plurality of foaminess, and the mutual blank area that this foaminess is fire-resistant 2 has coincidence part A.In addition, fire-resistant 2 of flooring material 4 and foaminess use metal buckle 6 such as steady pin to be fixed in the end of fire-resistant 2 of foaminess.At this moment, coincidence part A is identical with Fig. 3.
In the utility model, fire-resistant 2 of the foaminess of the lower flange 1b of aforesaid covering H shaped steel muscle 1 preferably is fixed by adhesive 3.By such structure, can control the foaming direction of fire-resistant 2 of foaminess.
For example, in the shown structure of Fig. 4, in fire-resistant 2 of the foaminess of lining lower flange 1b, the foaming of direction to the inside is suppressed, and only (descend) direction foaming formation carbonization isolation layer laterally.By the foaming of side direction in suppressing, can prevent to foam and press peeling off of the H shaped steel muscle 1 that causes and carbonization isolation layer, improve the tack of the carbonization isolation layer that forms, prevent to come off.
In addition, the back side that foaminess is fire-resistant 2 is laminated when the cellulosic sheet is arranged, and on lower flange 1b, the cellulosic sheet preferably is connected by the face of adhesive 3 with formation.The cellulosic sheet is with after adhesive surface is connected, and more effectively adhesion heat is dissolved composition, prevents to come off from H shaped steel muscle 1, so recommend to adopt the method.And, by adhesive 3 effect, the foaming direction only can be controlled at toward the outer side (downside) with the cellulosic sheet, can prevent to foam and press peeling off of the H shaped steel muscle 1 that causes and carbonization isolation layer, improve the tack of the carbonization isolation layer that forms, prevent to come off.
At this moment, the thickness of adhesive 3 is generally about 0.01mm～0.5mm according to using part etc. suitably to set, and is preferably about 0.02mm～0.1mm.
Fig. 6 has shown other sample attitude figure of reinforcing bar incombustible construction of the present utility model.
Fig. 6 (a) is for being arranged on the sectional view of reinforcing bar fireproof coating structure on flooring material 4 and the wall material 5, that be made of H shaped steel muscle 1 and fire-resistant 2 of foaminess.In Fig. 6 (a), fire-resistant 2 of foaminess covers 2 that remove face H shaped steel muscle 1 in addition that flooring material contacts with wall material.
Fig. 6 (b) is the sectional view (vertical view) that is arranged on the reinforcing bar fireproof coating structure of fire-resistant 2 formation of H shaped steel muscle 1 and foaminess on the wall material 5.In Fig. 6 (b), three faces of the H shaped steel muscle 1 beyond the face that contacts with wall material are removed in fire-resistant covering of foaminess.
Fig. 6 (c) is the H shaped steel muscle 1 of the corner portions located that is arranged on wall material 5 and the sectional view (vertical view) of fire-resistant 2 reinforcing bar fireproof coating structure that constitutes of foaminess.In Fig. 6 (b), fire-resistant 2 of foaminess covers two faces removing the face H shaped steel muscle 1 in addition that contacts with wall material.
The utility model can equally with above-mentioned H shaped steel muscle be applicable to I shaped steel muscle.
I shaped steel muscle of the present utility model, its cross section is the I font, and its upper flange is connected by tabular gusset with lower flange.I shaped steel muscle its flange inner usually is connected with the inclined-plane.
For example, in Fig. 7 (a), constitute three faces of the I shaped steel muscle 11 behind fire-resistant 2 of foaminess and air layer 7 face that common covering is removed with flooring material contacts with fire-resistant 2 of foaminess by the I shaped steel muscle 11 that is arranged on the flooring material 4.
In Fig. 7 (b), constitute 3 of the I shaped steel muscle 11 behind fire-resistant 2 of foaminess and air layer 7 face that common covering is removed with flooring material contacts with fire-resistant 2 of foaminess by the I shaped steel muscle 11 that is arranged on the flooring material 4.And fire-resistant 2 of the foaminess that covers the lower flange 11b of I shaped steel muscle 11 is fixed by adhesive 3.
Below show specific embodiment.
To being the mixture of main component with allyl resin 100 weight portions, melamine 90 weight portions, dipentaerythritol 90 weight portions, APP 320 weight portions, titanium oxide 100 weight portions, in temperature is 120 ℃ mixing roll, carry out mixing, modulate fire-resistant of foaminess with behind the mixing thing, laminated mixing thing on the glass nonwoven, utilize roll to be processed into sheet material, make fire-resistant of the foaminess (450mm * 1200mm) of thickness 1.5mm.
On floor (ALC plate), be provided with H shaped steel muscle (H400 * 200 * 8 * 13mm, length 1200mm).According to Fig. 5, towards H shaped steel muscle one side, volume pastes fire-resistant of foaminess with glass nonwoven one side of fire-resistant of the foaminess of making, and the overlap width of the mutual blank area that foaminess is fire-resistant is 20mm.Fire-resistant use steady pin of foaminess is fixed on the ALC plate, and, be adhesive in the mutual intersection of fire-resistant of foaminess and the propylene of lower flange coating thickness 50 μ m, with the reinforcing bar fireproof coating structure after fixing as the test body.
Test body for making according to the standard heating curves of ISO834, has carried out 1 hour heat run.The result shows, has formed basic carbonization isolation layer uniformly, has good fire resistance properties.
Claims (3)
1. reinforcing bar fireproof coating structure, constitute with fire-resistant of the foaminess that covers described H type or I shaped steel muscle by H type that constitutes the bar construction thing or I shaped steel muscle, it is characterized in that: the length direction of described H type or I shaped steel muscle is provided with fire-resistant of a plurality of foaminess, fire-resistant mutual blank area of this foaminess has coincidence part, and this coincidence part is fixed by adhesive.
2. reinforcing bar fireproof coating structure, constitute with fire-resistant of the foaminess that covers described H type or I shaped steel muscle by H type that constitutes the bar construction thing or I shaped steel muscle, it is characterized in that: the length direction of described H type or I shaped steel muscle is provided with fire-resistant of a plurality of foaminess, fire-resistant mutual blank area of this foaminess has coincidence part, this coincidence part is fixed by adhesive, and the lower flange and fire-resistant of the foaminess of described H type or I shaped steel muscle are fixed by adhesive.
3. reinforcing bar fireproof coating structure according to claim 1 and 2 is characterized in that: the back side that described foaminess is fire-resistant is laminated the cellulosic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206214181U CN201952930U (en) | 2010-11-22 | 2010-11-22 | Steel bar fireproof coating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206214181U CN201952930U (en) | 2010-11-22 | 2010-11-22 | Steel bar fireproof coating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201952930U true CN201952930U (en) | 2011-08-31 |
Family
ID=44497050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206214181U Expired - Lifetime CN201952930U (en) | 2010-11-22 | 2010-11-22 | Steel bar fireproof coating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201952930U (en) |
-
2010
- 2010-11-22 CN CN2010206214181U patent/CN201952930U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |