CN216920758U - Heat-preservation fireproof steel structure - Google Patents
Heat-preservation fireproof steel structure Download PDFInfo
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- CN216920758U CN216920758U CN202220040810.XU CN202220040810U CN216920758U CN 216920758 U CN216920758 U CN 216920758U CN 202220040810 U CN202220040810 U CN 202220040810U CN 216920758 U CN216920758 U CN 216920758U
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Abstract
The utility model discloses a heat-insulation fireproof steel structure which comprises a steel structure body and a heat-insulation fireproof layer; the heat-preservation fireproof layer is arranged on the periphery of the steel structure main body; the heat-insulating fireproof layer comprises an upper wing plate, a lower wing plate, a left wing plate and a right wing plate; the lower wing plate is arranged opposite to the upper wing plate, the left wing plate is arranged on the left sides of the upper wing plate and the lower wing plate, and the right wing plate is arranged on the right sides of the upper wing plate and the lower wing plate and is arranged opposite to the left wing plate; the left and right sides face of the upper wing plate and the lower wing plate is provided with a clamping piece along the length direction, and the left wing plate and the right wing plate are provided with a clamping groove matched with the clamping piece in a clamping mode along the length direction. According to the utility model, the boards in the heat-insulation fireproof layer are connected in a clamping and matching manner of the clamping grooves and the clamping pieces, screws are not needed, the integrity of the whole structure is effectively ensured, and the problem of non-ideal fireproof effect and heat-insulation effect caused by screw connection is avoided.
Description
Technical Field
The utility model relates to a steel structure, in particular to a heat-insulating fireproof steel structure.
Background
The steel used as building material has some inevitable defects in fire prevention, and its mechanical properties, such as yield point, tensile strength and elastic modulus, are all sharply reduced due to the increase of temperature. The steel structure usually loses bearing capacity at the temperature of 450-650 ℃, and generates great deformation, so that the steel column and the steel beam are bent, and consequently, the steel structure can not be used continuously due to excessive deformation, and the fire resistance limit of the steel structure without protection is about 15 minutes. The length of this time is also related to the rate at which the member absorbs heat. In order to overcome the defects of fire prevention in practical application of the steel structure material, fire prevention treatment is required, and the aim is to improve the fire resistance limit of the steel structure to the limit range specified by the design specifications. The method has the advantages that deformation and collapse of the steel structure caused by rapid temperature rise in fire are prevented, the measures are diversified, and different methods are adopted according to different conditions, such as adopting heat insulation and refractory materials to block flame and directly burn the steel structure, reducing the heat transfer speed and delaying the temperature rise of the steel structure, the strength weakening time and the like.
At present, the common method is that the fireproof coating is coated on the steel structure main body, the initial fireproof requirement of the steel structure construction can reach the standard (at the moment, the requirement is mostly the detection time of a supervision department), after several years, the fireproof coating is aged and loses the fireproof effect, when the steel structure is exerting the effect, the fireproof material is invalid, so that the service life of the whole steel structure building is influenced, and the repair or the spraying is carried out again to increase the great maintenance cost. For example, in the American world trade building collapsed in the event of 911, the main reason for this is that the steel structure does not meet the standards for fireproof materials and collapses in a short time. The fireproof coating is coated on the steel structure main body, and the defects of high cost, large construction difficulty, non-lasting fireproof effect, ugly appearance and the like exist simultaneously.
Also having at present to wrap the fire protection layer in the steel construction main part, the fire protection layer is formed by polylith protection shield connection, and the mode of connection fixation then adopts the screw to carry out the difference, and the problem that the mode that adopts the fix with screw exists is that the screw destroys the integrality of fire protection layer easily when connecting, leads to the fire behavior of fire protection layer to reduce, and the assembly is more troublesome moreover.
In addition, except for the requirement of fire prevention, the heat insulation performance of the steel structure also needs to be considered, so that the heat insulation effect in winter and summer is realized, the destructive influence of various extreme climates on the steel structure is reduced, for example, the deformation of the steel structure caused by expansion with heat and contraction with cold is reduced, and the heat insulation effect is not ideal if the existing screw is adopted for connection.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a heat-insulating fireproof steel structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an insulating and fireproof steel structure, comprising:
a steel structure body; and
the heat-insulating fireproof layer is arranged at the periphery of the steel structure main body in a wrapping mode;
wherein, the fire prevention layer that keeps warm includes:
an upper wing plate;
the lower wing plate is arranged opposite to the upper wing plate;
the left wing plate is arranged on the left sides of the upper wing plate and the lower wing plate; and
the right wing plate is arranged on the right sides of the upper wing plate and the lower wing plate and is opposite to the left wing plate;
the left and right sides face of the upper wing plate and the lower wing plate is provided with clamping pieces along the length direction of the left and right side faces, and the left wing plate and the right wing plate are provided with clamping grooves matched with the clamping pieces along the length direction of the left wing plate and the right wing plate.
The further technical scheme is as follows: the clamping groove is a U-shaped clamping groove.
The further technical scheme is as follows: and the matching joint of the clamping groove and the clamping piece is coated with adhesive.
The further technical scheme is as follows: the steel structure body is an I-shaped steel beam, and a side rib plate is arranged between the heat-insulation fireproof layer and the I-shaped steel beam.
The further technical scheme is as follows: the side rib plates are perpendicular to or parallel to the wing plate direction of the I-shaped steel beam.
The further technical scheme is as follows: and fireproof fillers are arranged between the I-shaped steel beam and the heat-insulating fireproof layer.
The further technical scheme is as follows: and a base plate is arranged between the I-shaped steel beam and the upper wing plate and between the I-shaped steel beam and the lower wing plate.
The further technical scheme is as follows: the steel structure body is the girder steel of sphere, the heat preservation flame retardant coating with be equipped with between the girder steel of sphere and be used for right the girder steel of sphere carries out spacing fire prevention fixed plate.
The further technical scheme is as follows: the width of the fireproof fixing plate is 50-60 mm.
The further technical scheme is as follows: the heat-insulating fireproof layer is made of expanded perlite vermiculite plates or calcium silicate plates.
Compared with the prior art, the utility model has the beneficial effects that: the heat-insulation fireproof layer is coated on the periphery of the steel structure body, so that the steel structure can bear a building, and the heat-insulation fireproof performance is ensured to be good, meanwhile, the heat-insulation fireproof layer has a good decoration effect, is convenient and quick to install, effectively overcomes the defect that the traditional steel structure is not attractive in appearance, and is connected by clamping grooves and clamping pieces in a clamping and matching mode without screws, so that the integrity of the whole structure is effectively guaranteed, and the problem that the fireproof effect and the heat-insulation effect are not ideal due to the fact that screws are used for connection is solved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of a specific embodiment of a heat-insulating and fireproof steel structure according to the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of a heat-insulating and fireproof steel structure according to the present invention;
FIG. 3 is a schematic structural view of a left wing plate in a specific embodiment of a heat-insulating and fireproof steel structure according to the present invention;
FIG. 4 is a schematic structural view of an upper wing plate in a specific embodiment of the heat-insulating and fireproof steel structure of the present invention;
FIG. 5 is a schematic cross-sectional view of an embodiment of the present invention in which a ribbed plate structure is provided to the heat-insulating and fireproof steel structure;
FIG. 6 is a schematic cross-sectional view of another embodiment of the insulation and fire-proof steel structure according to the present invention.
Reference numerals
1. A steel structure body; 2. a heat-insulating fireproof layer; 21. an upper wing plate; 211. a clamping piece; 22. a lower wing plate; 23. a left wing panel; 231. a card slot; 24. a right wing panel; 3. a side rib plate; 4. a fireproof fixing plate; 5. a base plate; 6. and (5) stacking nails.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
The utility model discloses a heat-insulation fireproof steel structure, which comprises a steel structure body 1 and a heat-insulation fireproof layer 2, and is shown in figures 1-5; the heat-insulating fireproof layer 2 is arranged at the periphery of the steel structure main body in a wrapping manner; the heat-insulating and fire-proofing layer 2 is made of expanded perlite vermiculite plate (formed by mixing perlite and expanded vermiculite, and the manufacturing method refers to the content of the utility model patent application of the patent name of inorganic fire-proofing and heat-insulating material and products thereof). The heat-insulating fireproof layer 2 comprises an upper wing plate 21, a lower wing plate 22, a left wing plate 23 and a right wing plate 24; the lower wing plate 22 is arranged opposite to the upper wing plate 21, the left wing plate 23 is arranged on the left sides of the upper wing plate 21 and the lower wing plate 22, the right wing plate 24 is arranged on the right sides of the upper wing plate 21 and the lower wing plate 22 and is arranged opposite to the left wing plate 23, the left side face and the right side face of the upper wing plate 21 and the left side face of the lower wing plate 22 are both provided with clamping pieces 211 along the length direction of the left wing plate 21 and the right wing plate 24, and the left wing plate 23 and the right wing plate 24 are provided with clamping grooves 231 matched with the clamping pieces 211 in a clamping mode along the length direction of the left wing plate 23 and the right wing plate 24.
In some embodiments, the heat-insulating and fire-proof layer 2 is made of calcium silicate board.
Referring to fig. 2-4, in the present embodiment, the card slot 231 is a U-shaped card slot 211. When the clamping is carried out, screws are not needed, so that the integrity of the whole structure is effectively guaranteed, and the problems of non-ideal fireproof effect and heat preservation effect caused by the use of screw connection are avoided.
For the stability after the connection, an adhesive is coated at the matching connection position of the clamping groove 231 and the clamping piece 211.
In order to further improve the firmness after connection, the matched connection part of the clamping groove 231 and the clamping piece 211 is coated with a code nail 6.
In the embodiment shown in fig. 5, the steel structure body 1 is an i-beam, when the height or length of the i-beam exceeds a certain distance, the side rib plates 3 may be designed between the left wing plate 23, the right wing plate 24 and the i-beam, when the height of the i-beam (the distance between the upper wing plate 21 and the lower wing plate 22) is too large, the side rib plates 3 are arranged in the direction parallel to the wing plates of the i-beam, the cross section of the side rib plates is shown in fig. 5, and if the length (span) of the i-beam is too large, the side rib plates 3 are arranged in sections in the direction perpendicular to the i-beam.
In some embodiments, a fireproof filler is arranged in a gap between the steel i-beam and the heat-insulating and fireproof layer 2, and the fireproof filler can be inorganic fillers such as rock wool, glass wool, aluminum silicate wool and the like, and can also be expanded vermiculite particles.
As shown in fig. 2, a backing plate 5 is disposed between the i-beam and the upper and lower flanges 21 and 22, two backing plates are spaced apart from each other on the upper surfaces of the upper and lower flanges 21 and 22, and two backing plates 5 are spaced apart from each other on the lower surfaces of the lower and upper flanges 22 and 22.
As shown in fig. 6, steel structure body 1 in fig. 6 is the girder steel of sphere, in order to prevent rocking of girder steel of sphere, is equipped with between thermal insulation flame retardant coating 2 and the girder steel of sphere and is used for carrying out spacing fire prevention fixed plate 4 to the girder steel of sphere. Preferably, the width of the fireproof fixing plate is 50-60 mm. The fireproof fixing plate has a fireproof effect.
Of course, the present invention is also applicable to embodiments in which the steel structure body 1 is a channel steel beam, an angle steel, a T-shaped steel beam, a square steel, a steel pipe, a deformed steel beam, or the like. When steel structure body 1's length (span) is great, heat preservation flame retardant coating 2 then needs the concatenation of a plurality of pterygoid lamina units to form and just can cover, for example, need the polylith to go up pterygoid lamina 21 and form along the concatenation of 1 length direction of steel structure body and just can cover steel structure body 1's top completely, need polylith left wing board 23 to form along the concatenation of 1 length direction of steel structure body and just can cover steel structure body 1's left side completely. Therefore, when the upper wing plates 21 or the left wing plates 23 are spliced, the splicing part needs to be coated with adhesive.
In other embodiments, the insulating and fireproof layer 2 can also adopt a layered structure, which comprises an perlite layer on the outer side, a vermiculite layer on the inner side, and a bonding layer for bonding the perlite layer and the vermiculite layer.
While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a heat preservation fire prevention shaped steel structure which characterized in that includes:
a steel structure body; and
the heat-insulating fireproof layer is arranged at the periphery of the steel structure main body in a wrapping mode;
wherein, the fire prevention layer that keeps warm includes:
an upper wing plate;
the lower wing plate is arranged opposite to the upper wing plate;
the left wing plate is arranged on the left sides of the upper wing plate and the lower wing plate; and
the right wing plate is arranged on the right sides of the upper wing plate and the lower wing plate and is opposite to the left wing plate;
the left and right sides face of the upper wing plate and the lower wing plate is provided with a clamping piece along the length direction of the left and right side faces, and the left wing plate and the right wing plate are provided with clamping grooves matched with the clamping pieces in a clamping mode along the length direction of the left wing plate and the right wing plate.
2. The heat-insulation and fire-prevention type steel structure according to claim 1, wherein the clamping groove is a U-shaped clamping groove.
3. The heat-insulation and fire-prevention type steel structure as claimed in claim 1, wherein the matching connection part of the clamping groove and the clamping piece is coated with adhesive.
4. The heat-insulation fireproof steel structure according to claim 1, wherein the steel structure body is a steel I-beam, and side rib plates are arranged between the heat-insulation fireproof layer and the steel I-beam.
5. The heat-insulation and fireproof steel structure according to claim 4, wherein the side rib plates are perpendicular to or parallel to the wing plate direction of the I-shaped steel beam.
6. The heat-insulation and fireproof steel structure according to claim 4, wherein fireproof filler is arranged between the steel I-beam and the heat-insulation and fireproof layer.
7. The heat-insulation fireproof steel structure according to claim 4, wherein a base plate is arranged between the I-shaped steel beam and the upper wing plate and between the I-shaped steel beam and the lower wing plate.
8. The heat-insulation fireproof steel structure according to claim 1, wherein the steel structure body is a spherical steel beam, and a fireproof fixing plate for limiting the spherical steel beam is arranged between the heat-insulation fireproof layer and the spherical steel beam.
9. The heat-insulating and fireproof steel structure according to claim 8, wherein the width of the fireproof fixing plate is 50-60 mm.
10. The heat-insulating and fireproof steel structure according to claim 1, wherein the heat-insulating and fireproof layer is made of expanded perlite vermiculite plates or calcium silicate plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220040810.XU CN216920758U (en) | 2022-01-07 | 2022-01-07 | Heat-preservation fireproof steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220040810.XU CN216920758U (en) | 2022-01-07 | 2022-01-07 | Heat-preservation fireproof steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216920758U true CN216920758U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220040810.XU Active CN216920758U (en) | 2022-01-07 | 2022-01-07 | Heat-preservation fireproof steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216920758U (en) |
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2022
- 2022-01-07 CN CN202220040810.XU patent/CN216920758U/en active Active
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