CN206530343U - A kind of high-performance tunnel fire proofing decorative system - Google Patents
A kind of high-performance tunnel fire proofing decorative system Download PDFInfo
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- CN206530343U CN206530343U CN201720224678.7U CN201720224678U CN206530343U CN 206530343 U CN206530343 U CN 206530343U CN 201720224678 U CN201720224678 U CN 201720224678U CN 206530343 U CN206530343 U CN 206530343U
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Abstract
The utility model discloses a kind of high-performance tunnel fire proofing decorative system, including fireproof decoration plate and the anchoring piece for being fixed to fireproof decoration plate in tunnel wall；The fireproof decoration plate includes the substrate of rectangular thin-slab structure, it is covered in upper surface of base plate and surrounding turns down the metal decking box for wrapping four side surface upper parts of substrate after 90 ° respectively, and the F-C paint layer of metal decking box outer surfac is coated in, at least two strip frame notches are respectively provided with the metal decking box being against on four sides of substrate；The anchoring piece is in T shape, the strip iron sheet with the frame notch clamping on adjacent two pieces of fireproof decoration plates is respectively used to including two ends, and be connected in the middle part of strip iron sheet, the expansion bolt for being fixed with tunnel wall, the width of the length of the frame notch more than strip iron sheet.The advantage such as the system has excellent in cushion effect, fire resistance limit height, good decorative property, service life length, heat insulation function excellent and later stage clean and maintenance is convenient.
Description
Technical field
The utility model is related to a kind of fireproof heat-insulation system, and in particular to a kind of high-performance tunnel fire proofing decorative system.
Background technology
Although reinforcing bar, the concrete for building tunnel be non-ignitable body, but its fire resistance is poor, and research shows, when temperature reaches 250
DEG C when, the intensity of reinforcing bar is begun to decline, and when temperature reaches 380 DEG C, the intensity of concrete is begun to decline.When temperature reaches 600
DEG C when, concrete crushing strength loss about 75%, or even produce explosion, why Concrete At High Temperature can burst, be because
The Free water and chemical bonding water that concrete contains can be changed into water vapour at high temperature, and expansion rate is up to 1700 times, and coagulation
Soil structure is fine and close, if water vapour can not be distributed effectively, and the explosion of concrete is just inevitable.The serious consequence of tunnel fire hazard is drawn
The great attention of Qi Liao national governments, to solve tunnel fire fighting problem, countries in the world have carried out many research and exploration, and
Some technical specifications have been promulgated in tunnel fire proofing design aspect, has been distinctly claimed and flameproof protection is carried out to tunnel structure, to improve tunnel
The fire endurance of road structure.
The purpose of tunnel structure flameproof protection, exactly takes certain measure, makes the reinforced concrete structure in tunnel in fire
After generation（In fire endurance）The integrality and stability of tunnel structure can be still kept, so as to reduce maintenance cost, is shortened
Engineering repair time.
At present, the guard method of tunnel structure fireproofing passiveness mainly has three kinds：Concrete, the sprayed fire proofing of additional thickness are provided
Coating and installation tunnel fire proofing protection board, wherein, the developing direction that tunnel fire proofing protection board is tunnel fire proofing protection is installed.
But existing tunnel fire proofing protection board（Hereinafter referred to as fire-proof plate or sheet material）Main problems with：
（1）Absorb water, return halogen problem.Tunnel fire proofing protection board by main component of calcium silicates, particularly when its unit weight is low
In 1000kg/m3When, its water absorption rate is up to 40%, and the technical indicator such as water suction saturation bending strength is difficult to meet existing national standard
（GB28376-2012）Technical requirements；Using magnesia and magnesium chloride as the tunnel fire proofing protection board of main material because chlorine from
The presence of son, has the problem of returning halogen, the moisture absorption, influences its endurance quality and fire resistance.
（2）Exposed expansion bolt influence fire-proof plate fire endurance.Existing tunnel fire-proof board is fixed by expansion bolt,
Every square metre about needs 6 bolts, and excessively intensive bolt, the probability contacted with concrete reinforcing steel is very big, and bolt is exposed
In outside fire-proof plate, the fire endurance of tunnel structure can be substantially reduced.
（3）The Tunnel Design life-span is generally 100 years, the problem of existing tunnel fire-proof board is due to its material itself or construction
The problem of method, its service life is difficult to synchronous with the Tunnel Design life-span.
Utility model content
The purpose of this utility model is in order to solve the above-mentioned technical problem to be there is provided a kind of high-performance tunnel fire proofing decoration
System, the system has compression strength height, good fire resistance, good decorative property, service life length, with heat insulation function and later stage cleaning dimension
Protect the advantage such as convenient.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of high-performance tunnel fire proofing decorative system, including fireproof decoration plate and for fireproof decoration plate to be installed into tunnel
Anchoring piece on wall；The fireproof decoration plate includes the substrate of rectangular thin-slab structure, is covered in upper surface of base plate and surrounding is turned over
The metal decking of four side surface upper parts of substrate is wrapped respectively after 90 ° of folding, and is coated in the F-C paint of metal decking outer surface
At least two strip frame notches are respectively provided with layer, the metal decking being against on four sides of substrate；The anchoring piece
It is in T shape, including two ends are respectively used to the strip iron sheet with the frame notch clamping on adjacent two pieces of fireproof decoration plates, Yi Jiyu
Connection, the expansion bolt for being fixed with tunnel wall in the middle part of strip iron sheet, the length of the frame notch are more than strip iron sheet
Width.
It is preferred that, the fire prevention that the fire-retardant decorative system also includes being used to be filled into adjacent two fireproof decoration plates seam is swollen
Swollen sealing strip, the fire-proof expansion seal strip is swollen including multi-layer nonwoven fabrics, and the high temperature being filled between adjacent two layers non-woven fabrics
Swollen material.
It is preferred that, the fire-retardant decorative system also includes the seam crossing for pasting adjacent two fireproof decoration plate and covered
The flame-proof silicone sealant covered above anchoring piece and fire-proof expansion seal strip.
It is preferred that, in the seam of adjacent two fireproof decoration plate, it is additionally provided with through fire-proof expansion seal strip and fire-retardant silicon
The steam vent of ketone seal gum, the vent openings obliquely, for ventilating.
It is preferred that, the metal decking is aluminium sheet, iron plate, aluminium alloy plate or ferroalloy plate.
It is preferred that, the strip iron sheet two ends are triangular structure.
Compared with prior art, the utility model has the advantages that：
（1）Anchoring piece and fire-proof expansion seal strip of the present utility model are sealed up by flame-proof silicone sealant, on the one hand
Fireproof heat-preservation decoration system good appearance is can effectively ensure that, on the other hand can also strengthen its fire prevention and heat-insulating property.
（2）The each of fireproof decoration plate of the present utility model is respectively provided with least two frame grooves for being used to install anchoring piece sideways
Mouthful, the strip iron sheet of the anchoring piece of T-shaped structure can be made to insert in the frame notch, and expansion bolt is knocked in after tunnel wall, can be made
Fireproof decoration plate is firmly attached in tunnel wall；Wherein, frame notch is wider than strip iron sheet, in order to adapt to wider installation model
Enclose, and strip iron sheet two ends are set to triangular structure, and it can be easy to be caught in frame notch, it is time saving and energy saving；In addition, also in phase
The seam crossing of adjacent two pieces of fireproof decoration plates has been caught in fire-proof expansion seal strip, and is sealed above anchoring piece and fire-proof expansion seal strip
There is flame-proof silicone sealant, on the one hand avoid anchoring piece and fire-proof expansion seal strip exposes, protected so as to which fire prevention has been effectively ensured
The good appearance of warm decorative system, on the other hand also enhances fire prevention, the heat-insulating property of the system.
（3）What the substrate of fireproof decoration plate of the present utility model was selected is low density foam cement plate or thin fiber board,
The fire protecting performance of substrate in itself can be effectively increased；And after the metal decking box that surface is covered, fire prevention dress can be effectively improved
Compression strength, fire protecting performance and the water resistance of plaque；F-C paint layer is coated with metal decking box, on the one hand because fluorine carbon
Enamelled coating has higher hardness, so decorative panel has preferable self-purification capacity, on the other hand because F-C paint layer can basis
Need to make monochromatic enamelled coating, tertiary colour enamelled coating, so the color controllable of fireproof decoration plate, simultaneously as fire-retardant decorative plate surface
Panel is metal, therefore fireproof decoration plate also has the convenient advantage of clean and maintenance.
（4）The utility model is also provided with steam vent, and the steam vent makes tunnel wall consistent with external atmosphere pressure, can keep away
Exempt to damage fireproof heat preservation decorative board because expanding with heat and contract with cold；Vent openings diagonally downward, can prevent rainwater or Water vapor condensation water
Pour in down a chimney Deng liquid.
（5）The first binding agent that the utility model is selected is respectively provided with preferable cementitiousness with substrate and metal decking box,
And raw material sources of the binding agent itself are wide and with low cost.
（6）Fireproof heat-preservation decoration system fire endurance of the present utility model reaches 2 hours（RABT heating curves）, burning etc.
Level reach A2 grade, flue gas toxity reach AQ1, water absorption rate be 6.3%, thermal conductivity value 0.057W/ (m.k), Wind-Pressure Resistance value
7.5KPa, the % of stain resistance value 3.9, impact strength are that 10.0J its breakdown point is 0, solve the presence of tunnel fire proofing material
Fire endurance is low, burning grade is low, flue gas toxity is high, physicochemical property and heat-insulating property are difficult to take into account, heat-insulation system service life
, thermal insulation structure asynchronous with the architectural design life-span and the technical barrier such as decorating structure is incompatible, with excellent in cushion effect, fire resisting
Property the advantage such as limit height, good decorative property, service life length, heat insulation function be excellent and later stage clean and maintenance is convenient.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of fireproof decoration plate.
Fig. 3 is anchor arrangement schematic diagram.
Fig. 4 is fire-proof expansion seal strip structural representation.
Fig. 5 is A-A partial sectional views.
Wherein, reference is corresponding entitled：
1- fireproof decoration plates, 2- anchoring pieces, 3- fire-proof expansion seal strips, 4- substrates, 5- metal decking boxes, 6- F-C paints
Layer, 7- frame notches, 8- nonwoven layers, 9- high-temperature expansion materials, 10- flame-proof silicone sealants, 11- steam vents.
Embodiment
The utility model is described in further detail with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes
But it is not limited only to following examples.
The purpose of the present embodiment is to provide for a kind of high-performance tunnel fire proofing decorative system, as shown in figure 1, the system is set
Put in the tunnel wall in tunnel, including fireproof decoration plate 1, anchoring piece 2, steam vent 11, fire-proof expansion seal strip 3 and fire-retardant silicon
Ketone seal gum 10；
As shown in Fig. 2 the fireproof decoration plate 1, includes the substrate 4 of rectangular thin plate structure, the upper surface of substrate 4 is covered in
Metal decking box 5, and it is coated in the F-C paint layer 6 of metal decking box outer surfac；Wherein, metal decking box 5 is by metal
Panel compacting is formed, and the surrounding of metal decking box 5 after the completion of compacting turns down 90 ° and wraps four side surface upper parts of substrate respectively,
On the whole, metal decking box 5 is in lid-like, is covered on the top of substrate 4.
The substrate 4 is also bonded with metal decking box 5 using the first binding agent；Wherein, in order that the fireproof decoration plate 1
Good heat insulating, the low density foam cement plate that substrate described in the substrate 4 can be made up of the raw material of following parts by weight：Water
0.8 ~ 1.2 part of mud, 0.3 ~ 0.5 part of flyash, 1.1 ~ 1.3 parts of PP fibers, 0.25 ~ 0.35 part of foam stabilizer, foaming agent 4.8 ~ 5.1
Part, 0.33 ~ 0.35 part of lithium carbonate, 0.4 ~ 0.6 part of stearic acid, 4.3 ~ 5.0 parts of water, substrate can also be by rock wool, mineral wool, glass
The thin fiber board that glass cotton, alumina silicate fibre, alumina fibre, silicon carbide fibre, boron fibre, alumina fibre etc. are processed.
And in order to overcome the problem of poor water resistance of aforesaid substrate, later strength decay serious, specially outer surface at an upper portion thereof is pasted
Metal decking box with F-C paint layer；From cement mortar, epoxy adhesive, dual-component polyurethane, monocomponent polyurethane
And any one in white glue with vinyl, Lauxite, acrylic resin, amino resins, styrene-acrylic resin, pure-acrylic emulsion, organosilicon acrylic resin
Or it is several as the first binding agent, metal decking box can be made firmly to be bonded together with substrate.Wherein, the metal decking box
For aluminium box, can, aluminium alloy box or ferroalloy box.
For the ease of fireproof decoration plate 1 is fixed in tunnel wall, and the Integral decoration effect after installing is not influenceed and anti-
Fiery function, is also respectively provided with least two strips for being easily installed fireproof decoration plate 1 on four sides of the fireproof decoration plate 1
Frame notch 7, makes it coordinate with anchoring piece.
As shown in figure 3, the anchoring piece 2 is in T shape, including two ends be respectively used to on adjacent two pieces of fireproof decoration plates
The strip iron sheet of the clamping of frame notch 7, and with strip iron sheet in the middle part of be connected, the expansion bolt for being fixed with tunnel wall；Institute
State provided with the hole matched with expansion bolt in the middle part of strip iron sheet, strip iron sheet two ends are set to triangular structure, are easy to it to block
Substrate can smoothly be inserted by entering after frame notch 7；Strip iron sheet two ends are being respectively clamped into the frame of adjacent two pieces of fireproof decoration plates
Notch 7 is simultaneously injected after substrate, expansion bolt is inserted in the middle part of strip iron sheet, and knocked in tunnel wall, you can by fire-retardant decorative
Plate is fixed in tunnel wall；Wherein, for the ease of installing, the frame notch length is more than strip iron sheet width.Fire prevention is installed
During decorative panel, it is fixed with tunnel wall using viscous anchor combined process, first in fireproof decoration plate A backside coating cement mortar, water
The coated area of cement mortar is not less than the 40% of fire-proof plate backside area, then is fitted in tunnel wall, then by strip iron sheet
One end is caught in fireproof decoration plate A frames notch and has cement in frame notch insertion substrate, then by another piece of backside coating
The fireproof decoration plate B of mortar is fitted in neighbouring fireproof decoration plate A tunnel wall, and is drawn close to fireproof decoration plate A, and makes strip
The other end of iron sheet is caught in fireproof decoration plate B frame notch, and is inserted through frame notch in fireproof decoration plate B substrate.
Gap width is generally 10mm ~ 20mm between adjacent fireproof decoration plate A and fireproof decoration plate B, and finally, expansion bolt is inserted
In the middle part of strip iron sheet, and tunnel wall is knocked in, fireproof decoration plate A and fireproof decoration plate B is firmly secured on tunnel, i.e.,
Complete the installation of fireproof decoration plate.
As shown in figure 5, due to leaving gap between adjacent two pieces of fireproof decoration plates, therefore, in fire prevention of the present utility model
, it is necessary to fill fire-proof expansion seal strip 3 in the seam crossing of adjacent two pieces of fireproof decoration plates 1 after decorative panel 1 is installed.As schemed
Shown in 4, the fire-proof expansion seal strip 3 includes multi-layer nonwoven fabrics 8, and the high-temperature expansion material being filled between adjacent non-woven fabrics
9, the weight ratio that the second binding agent and high-temperature expansion material and the second binding agent are mixed with the high-temperature expansion material is 1: 0.57
~1.11.Wherein, the second binding agent be phenolic resin, melamine methyl resin, white glue with vinyl, Lauxite, acrylic resin,
Any one or a few in amino resins, styrene-acrylic resin, pure-acrylic emulsion, organosilicon acrylic resin；And the high-temperature expansion material 9 by with
The raw material composition of lower parts by weight：2.1 ~ 3.2 parts of melamine, pentaerythrite（Or polypentaerythritol）1 ~ 2 part, APP
0.5 ~ 1.5 part, 2.0 ~ 4.2 parts of expanded graphite, 02 ~ 0.3 part of titanium dioxide, 0.01 ~ 0.03 part of lanthana, yttrium nitrate 0.001 ~
0.003 part, 0.001 ~ 0.004 part of terbium nitrate, 0.1 ~ 0.2 part of CNT, the fire prevention being mixed using the material of the ratio
The fire resistance of expanding sealing strips fire protecting performance can be matched with the fire endurance of fireproof decoration plate.
In order to not influence the fire protecting performance and decorative effect of whole fireproof heat-preservation decoration system, fire-retardant silicon is also specially provided with
Ketone seal gum 10, the fluid sealant is used to be filled into the seam crossing of adjacent two pieces of fireproof decoration plates and is covered in anchoring piece 2 and fire prevention
The top of expanding sealing strips 3, plays a part of covering connecting sewing, beautification tunnel wall.Further, since the change of temperature can cause fire prevention
The phenomenon that decorative panel expands with heat and contract with cold, therefore the He of fire-proof expansion seal strip 3 in two pieces of adjacent fireproof decoration plate seams
Through multiple steam vents 11 are provided with flame-proof silicone sealant 10, steam vent 11 makes tunnel wall consistent with external atmosphere pressure.
Also, the opening of each passage is oblique lower section, to prevent rainwater etc. from pouring in down a chimney.
Above-described embodiment is only one of preferred embodiment of the present utility model, be should not be taken to limit of the present utility model
Protection domain, as long as body design thought of the present utility model and mentally make have no the change of essential meaning or profit
Color, the technical problem that it is solved is still consistent with the utility model, should be included in protection domain of the present utility model
Within.
Claims (6)
1. a kind of high-performance tunnel fire proofing decorative system, it is characterised in that including fireproof decoration plate（1）With for by fire-retardant decorative
Plate is fixed to the anchoring piece in tunnel wall（2）；The fireproof decoration plate（1）Include the substrate of rectangular thin-slab structure（4）, covering
Wrap the metal decking box of four side surface upper parts of substrate respectively after 90 ° of upper surface of base plate and surrounding turnover（5）, and apply
Overlay on the F-C paint layer of metal decking box outer surfac（6）, it is respectively provided with the metal decking box being against on four sides of substrate
At least two strip frame notches（7）；The anchoring piece（2）It is in T shape, including two ends are respectively used to and adjacent two pieces are prevented fires
The strip iron sheet of frame notch clamping on decorative panel, and with strip iron sheet in the middle part of be connected, for tunnel wall fix it is swollen
Swollen bolt, the frame notch（7）Length be more than strip iron sheet width.
2. a kind of high-performance tunnel fire proofing decorative system according to claim 1, it is characterised in that the fire-retardant decorative system
System also includes the fire-proof expansion seal strip for being used to be filled into adjacent two fireproof decoration plates seam（3）, the fire-proof expansion seal strip
Including multi-layer nonwoven fabrics（8）, and the high-temperature expansion material being filled between adjacent two layers non-woven fabrics（9）.
3. a kind of high-performance tunnel fire proofing decorative system according to claim 2, it is characterised in that the fire-retardant decorative system
System also includes the seam crossing for being filled into adjacent two fireproof decoration plate and is covered in anchoring piece（2）And fire-proof expansion seal strip
（3）The flame-proof silicone sealant of top（10）.
4. a kind of high-performance tunnel fire proofing decorative system according to claim 3, it is characterised in that adjacent two fire prevention
In the seam of decorative panel, it is additionally provided with through fire-proof expansion seal strip（3）And flame-proof silicone sealant（10）Steam vent（11）, institute
Vent openings are stated obliquely, for ventilating.
5. a kind of high-performance tunnel fire proofing decorative system according to claim 1 ~ 4 any one, it is characterised in that described
Metal decking box（5）For aluminium box, can, aluminium alloy box or ferroalloy box.
6. a kind of high-performance tunnel fire proofing decorative system according to claim 5, it is characterised in that in the strip iron sheet
Portion is provided with the hole matched with expansion bolt, and strip iron sheet two ends are set to triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224678.7U CN206530343U (en) | 2017-03-09 | 2017-03-09 | A kind of high-performance tunnel fire proofing decorative system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224678.7U CN206530343U (en) | 2017-03-09 | 2017-03-09 | A kind of high-performance tunnel fire proofing decorative system |
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| Publication Number | Publication Date |
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| CN206530343U true CN206530343U (en) | 2017-09-29 |
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| CN201720224678.7U Active CN206530343U (en) | 2017-03-09 | 2017-03-09 | A kind of high-performance tunnel fire proofing decorative system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703829A (en) * | 2017-03-09 | 2017-05-24 | 公安部四川消防研究所 | Tunnel fireproofing decoration system with high performance |
-
2017
- 2017-03-09 CN CN201720224678.7U patent/CN206530343U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703829A (en) * | 2017-03-09 | 2017-05-24 | 公安部四川消防研究所 | Tunnel fireproofing decoration system with high performance |
| CN106703829B (en) * | 2017-03-09 | 2019-05-07 | 公安部四川消防研究所 | A kind of high-performance tunnel fire proofing decorative system |
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