CN216550246U - Flame-retardant fireproof structure for bridge cable - Google Patents
Flame-retardant fireproof structure for bridge cable Download PDFInfo
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- CN216550246U CN216550246U CN202123176883.6U CN202123176883U CN216550246U CN 216550246 U CN216550246 U CN 216550246U CN 202123176883 U CN202123176883 U CN 202123176883U CN 216550246 U CN216550246 U CN 216550246U
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Abstract
The utility model discloses a flame-retardant fireproof structure for a bridge cable, which comprises fireproof flame-retardant ceramic fiber paper (1), inorganic flame-retardant fireproof glue (2), a flame-retardant double-sided adhesive tape (4) and a separation film (5); the method is characterized in that: coating inorganic flame-retardant fireproof glue (2) above the fireproof flame-retardant ceramic fiber paper (1), wherein the upper surface of the inorganic flame-retardant fireproof glue (2) is covered with an aluminum foil (3) with glass fiber gridding cloth; an isolation film (5) is arranged below the fireproof flame-retardant ceramic fiber paper (1), a flame-retardant double-sided adhesive tape (4) is arranged between the fireproof flame-retardant ceramic fiber paper (1) and the isolation film (5), and the fireproof flame-retardant ceramic fiber paper (1) and the isolation film (5) are firmly adhered by the flame-retardant double-sided adhesive tape (4); this fire resistive construction uses fixed when fire-retardant double faced adhesive tape makes things convenient for the construction, and the construction is faster.
Description
Technical Field
The utility model relates to a high-temperature fireproof device, in particular to a flame-retardant fireproof structure for a bridge cable.
Background
The bridge cable plays a role in supporting and reinforcing the bridge and is one of the most key stress components of the cable bridge. When an accident occurs to a car passing through a bridge, such as collision of an oil tank truck, a passenger car, a car and the like, a fire disaster is easily caused. After a fire disaster occurs, the whole bridge structure is greatly damaged. Particularly, when the oil tank truck has a fire, the combustion speed is high, the flame temperature is high, the radiation force is strong, and the temperature of the flame center can reach 1400 ℃. After the bridge cable is heated to a certain temperature, the strength and the hardness are greatly attenuated, the plasticity is obviously increased, cable deformation is caused, even the bridge body is collapsed, and once the bridge cable is failed and damaged, multiple disasters can be caused, so that very disastrous safety accidents and economic losses are caused.
Generally, when the heating temperature of the cable is lower than 300 ℃, the tensile strength of the cable is not influenced obviously by the temperature. It takes at least 30min from the time when the bridge passing vehicle is in fire to the time when the fire fighters are driven to the scene, so that the cable is necessary to be protected from fire.
At present, the bridge cable is often subjected to anticorrosion protection in China, and the application of fireproof protection materials is less. The safety problem is prominent when encountering traffic fire. The patent publication number is CN 212426754U, and the name is "a fireproof flame-retardant weather-resistant structure for protecting bridge cables", and the structure is fluorocarbon paint, fireproof flame-retardant weather-resistant cloth, three-dimensional fabric, waterproof flame-retardant weather-resistant glue and fireproof flame-retardant weather-resistant cloth. Waterproof flame-retardant weather-resistant glue is filled in the fireproof flame-retardant weather-resistant three-dimensional fabric, fireproof flame-retardant weather-resistant cloth is attached to the upper surface and the lower surface of the fireproof flame-retardant weather-resistant three-dimensional fabric respectively, and a waterproof coating is further coated on the outer surface of the fireproof flame-retardant weather-resistant cloth. But the high temperature resistance of the structure is insufficient, and long safety time cannot be ensured after the bridge catches fire.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special fireproof layer for a bridge cable, which can achieve the fire prevention duration of 30min, the heating temperature of the cable is not more than 300 ℃, and the time is provided as far as possible for fire rescue.
The technical scheme of the utility model provides a fireproof material structure for protecting a bridge cable, which comprises fireproof flame-retardant ceramic fiber paper, inorganic flame-retardant fireproof glue, flame-retardant double-sided adhesive and a separation film; the method is characterized in that:
coating inorganic flame-retardant fireproof glue above the fireproof flame-retardant ceramic fiber paper, wherein the upper surface of the inorganic flame-retardant fireproof glue is covered with an aluminum foil with glass fiber gridding cloth;
the isolating membrane is arranged below the fireproof flame-retardant ceramic fiber paper, the flame-retardant double-faced adhesive tape is arranged between the fireproof flame-retardant ceramic fiber paper and the isolating membrane, and the fireproof flame-retardant ceramic fiber paper and the isolating membrane are firmly adhered by the flame-retardant double-faced adhesive tape.
Further, the fireproof flame-retardant ceramic fiber paper is selected from standard aluminum silicate fiber paper, high-aluminum fiber paper or zirconium-containing fiber paper.
Further, the thickness of the fireproof flame-retardant ceramic fiber paper is 1mm-10 mm.
Further, the inorganic flame-retardant fireproof glue 2 is a composition of inorganic polymeric silica gel and silicon oxide nanometer powder, and the coating thickness is 0.1-2 mm.
Further, the thickness of the flame-retardant double-sided adhesive tape is 0.1-0.5 mm.
The utility model has the beneficial effects that:
(1) this fire resistive construction uses fire-retardant double faced adhesive tape to make things convenient for fixed when being under construction, and the construction is faster.
(2) The tensile property of the fireproof structure is enhanced by coating films on two sides.
(3) The fire-proof structure is wound by the pu soft film, so that the fire-proof structure is smooth and attractive.
Drawings
Fig. 1 is a fire retardant and fire proof structure for a bridge cable according to the present invention.
1-fireproof flame-retardant ceramic fiber paper; 2-inorganic flame-retardant fireproof glue; 3-aluminum foil with fiberglass gridding cloth; 4-flame-retardant double-sided adhesive tape; 5-isolation film.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to fig. 1.
As shown in fig. 1, the embodiment provides a fireproof material structure for protecting a bridge cable, which comprises fireproof and flame-retardant ceramic fiber paper 1, inorganic flame-retardant fireproof glue 2, flame-retardant double-sided glue 4 and a separation film 5;
wherein, the inorganic flame-retardant fireproof glue 2 is coated on the fireproof flame-retardant ceramic fiber paper 1, and the upper surface of the inorganic flame-retardant fireproof glue 2 is covered with an aluminum foil 3 with glass fiber gridding cloth.
The isolating membrane 5 is arranged below the fireproof flame-retardant ceramic fiber paper 1, the flame-retardant double-faced adhesive tape 4 is arranged between the fireproof flame-retardant ceramic fiber paper 1 and the isolating membrane 5, and the fireproof flame-retardant ceramic fiber paper 1 is firmly adhered to the isolating membrane 5 through the flame-retardant double-faced adhesive tape 4.
The fireproof flame-retardant ceramic fiber paper 1 can be standard aluminum silicate fiber paper, high-aluminum fiber paper and zirconium-containing fiber paper. The thickness of the fireproof flame-retardant ceramic fiber paper 1 is 1mm-10 mm.
The inorganic flame-retardant fireproof glue 2 is a composition of inorganic polymeric silica gel and silicon oxide nano powder, the bulk density is 30-50kg/m3, the silicon oxide accounts for more than 98.5%, and the coating thickness is 0.1-2 mm.
The thickness of the flame-retardant double-faced adhesive tape 4 is 0.1-0.5mm, and the isolation film 5 is made of a pu soft film.
The fireproof material structure for bridge cable protection is cut into cable protection belts with the width of 10-15 cm, the thickness of 1-10 mm and the length of 10 m.
The fireproof material structure for protecting the bridge cable has fireproof and waterproof functions.
In a preferred embodiment, the fireproof material structure for protecting the bridge cable adopts 7mm standard fireproof flame-retardant ceramic fiber paper, inorganic flame-retardant fireproof glue with the thickness of 0.2mm is coated on a steel strand in a composite mode, and four layers of 2mm anticorrosive paint and three layers of 2mm glass fiber gridding cloth are coated on the outer layer.
Wherein: the mass ratio of the two components in the inorganic flame-retardant fireproof glue is inorganic polymerized silica gel: 20 parts of silicon oxide nano powder: 1; and (3) carrying out a fire resistance test according to a UL1709 hydrocarbon fire heating curve, wherein the fire resistance lasts for 35min when the temperature of the steel strand reaches 300 ℃.
In another preferred embodiment, the fireproof material structure for protecting the bridge cable adopts 10mm standard fireproof flame-retardant ceramic fiber paper, inorganic flame-retardant fireproof glue with the composite coating thickness of 0.2mm is coated on a steel strand, and four layers of 2mm anticorrosive paint and three layers of glass fiber mesh cloth are coated on the outer layer.
Wherein: the mass ratio of the two components in the inorganic flame-retardant fireproof glue is inorganic polymerized silica gel: 20 parts of silicon oxide nano powder: 1; and (3) carrying out a fire resistance test according to a UL1709 hydrocarbon fire heating curve, wherein the fire resistance time is up to 42min when the temperature of the steel strand reaches 300 ℃.
It should be understood by those skilled in the art that the above-described embodiments are merely illustrative of exemplary implementations of the present invention and are not intended to limit the scope of the present invention. The details of the embodiments are not to be interpreted as limiting the scope of the utility model, and any obvious changes, such as equivalent alterations, simple substitutions and the like, based on the technical solution of the utility model, can be interpreted without departing from the spirit and scope of the utility model.
Claims (4)
1. A flame-retardant fireproof structure for a bridge cable comprises fireproof flame-retardant ceramic fiber paper (1), inorganic flame-retardant fireproof glue (2), flame-retardant double faced adhesive tape (4) and a separation film (5); the method is characterized in that:
coating inorganic flame-retardant fireproof glue (2) above the fireproof flame-retardant ceramic fiber paper (1), wherein the upper surface of the inorganic flame-retardant fireproof glue (2) is covered with an aluminum foil (3) with glass fiber gridding cloth;
the fireproof flame-retardant ceramic fiber paper is characterized in that the isolating film (5) is arranged below the fireproof flame-retardant ceramic fiber paper (1), the flame-retardant double-faced adhesive tape (4) is arranged between the fireproof flame-retardant ceramic fiber paper (1) and the isolating film (5), and the fireproof flame-retardant ceramic fiber paper (1) and the isolating film (5) are firmly adhered by the flame-retardant double-faced adhesive tape (4).
2. The fire retardant and fire resistant structure for bridge cables of claim 1, wherein: the fireproof flame-retardant ceramic fiber paper (1) is selected from standard aluminum silicate fiber paper, high-aluminum fiber paper or zirconium-containing fiber paper.
3. The fire retardant and fire resistant structure for bridge cables of claim 1, wherein: the thickness of the fireproof flame-retardant ceramic fiber paper (1) is 1mm-10 mm.
4. The fire retardant and fire resistant structure for bridge cables of claim 1, wherein: the thickness of the flame-retardant double-sided adhesive tape (4) is 0.1-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123176883.6U CN216550246U (en) | 2021-12-16 | 2021-12-16 | Flame-retardant fireproof structure for bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123176883.6U CN216550246U (en) | 2021-12-16 | 2021-12-16 | Flame-retardant fireproof structure for bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216550246U true CN216550246U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123176883.6U Active CN216550246U (en) | 2021-12-16 | 2021-12-16 | Flame-retardant fireproof structure for bridge cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216550246U (en) |
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2021
- 2021-12-16 CN CN202123176883.6U patent/CN216550246U/en active Active
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