CN216810388U

CN216810388U - Steel construction fire-proof plate for building

Info

Publication number: CN216810388U
Application number: CN202220441201.5U
Authority: CN
Inventors: 马永亮; 马海群; 韩彩霞; 马瑜琦
Original assignee: Huachuang Architectural Design Co ltd
Current assignee: Huachuang Architectural Design Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-06-24
Anticipated expiration: 2032-03-01

Abstract

The utility model belongs to the technical field of the steel construction fire prevention and specifically relates to a PLASTIC LAMINATED for steel construction building is related to, and it is including setting up the PLASTIC LAMINATED body in the steel section bar outside, the PLASTIC LAMINATED body is including fixed first flame retardant coating, second flame retardant coating and the third flame retardant coating that sets up in proper order, be provided with the buckle that is used for connecting the steel section bar on the first flame retardant coating, the second flame retardant coating is including being used for with first flame retardant coating and third flame retardant coating fixed connection's frame, be provided with a plurality of packing check just on the frame packing check intussuseption is filled with refractory structure. In the application, the fireproof plate body is of a three-layer structure, the total thickness is 20-25mm, the flame retardant time can reach 3h, and the fireproof plate can play a good protection role in a steel structure so as to reduce the possibility of damage of the steel structure in a fire disaster.

Description

Steel construction fire-proof plate for building

Technical Field

The invention relates to the field of fire prevention of steel structures, in particular to a fireproof plate for a steel structure building.

Background

The steel structure building is a building taking a steel section member as a bearing framework, and compared with the traditional concrete building, the steel structure building has higher strength and better shock resistance. However, compared with concrete, the fire resistance of the steel section is poor, and after the temperature reaches above 300 ℃, the strength of the steel section begins to decrease, which poses great threat to the safety of the whole building, so measures need to be taken to improve the fire resistance of the steel section, especially the bearing beam used for the steel structure building.

At present, one fire prevention mode that is commonly used is at steel section surface spraying fire protection coating to improve the fire endurance of girder steel, but the fire prevention grade that this kind of fire prevention mode can reach is lower, when the intensity of a fire is great, can't play better fire prevention effect.

SUMMERY OF THE UTILITY MODEL

For the fire-resistant ability who improves steel section bar to improve the security performance of steel construction building when the conflagration breaing out, this application provides a PLASTIC LAMINATED for steel construction building.

The application provides a pair of PLASTIC LAMINATED for steel construction building adopts following technical scheme:

the utility model provides a PLASTIC LAMINATED for steel construction building, is including setting up the PLASTIC LAMINATED body in the steel section bar outside, the PLASTIC LAMINATED body is including fixed first flame retardant coating, second flame retardant coating and the third flame retardant coating that sets up in proper order, be provided with the buckle that is used for connecting the steel section bar on the first flame retardant coating, the second flame retardant coating is including being used for with first flame retardant coating and third flame retardant coating fixed connection's frame, be provided with a plurality of packing check on the frame just it is filled with refractory structure to fill the check.

Through adopting above-mentioned technical scheme, the second flame retardant coating passes through the frame to be connected with first flame retardant coating and third flame retardant coating to form the PLASTIC LAMINATED body that has three-layer fireproof structure, the PLASTIC LAMINATED body is established through first flame retardant coating card and is installed on steel section bar, thereby improves steel section bar's fire-proof ability.

Optionally, the filling cells are in a regular hexagonal shape, and a plurality of the filling cells are arranged in a honeycomb shape.

Through adopting above-mentioned technical scheme, a plurality of packing check structure become honeycomb frame, because honeycomb has better compressive strength to make the intensity of second flame retardant coating higher, thereby improve the bulk strength of PLASTIC LAMINATED body.

Optionally, a plurality of clamping pieces are arranged on the frame, and a plurality of clamping grooves matched with the clamping pieces are arranged on the first fireproof layer.

By adopting the technical scheme, the frame is clamped in the clamping groove on the first fireproof layer through the clamping piece, and the first fireproof layer and the second fireproof layer can be preliminarily connected so as to be convenient for fixing the first fireproof layer and the second fireproof layer subsequently; a plurality of fasteners and draw-in groove form a plurality of tie points between first flame retardant coating and second flame retardant coating to make the connection of first flame retardant coating and second flame retardant coating more stable.

Optionally, a plurality of limiting plates are arranged on the first fireproof layer, and the limiting plates are respectively used for limiting different edges of the frame.

Through adopting above-mentioned technical scheme, when adorning the frame on first flame retardant coating, can fix earlier on first flame retardant coating with some limiting plates and carry on spacingly to the frame to draw-in groove alignment on installer with fastener on the frame and the first flame retardant coating.

Optionally, the PLASTIC LAMINATED body is provided with a plurality ofly with group as the unit, and is a plurality of with group setting the PLASTIC LAMINATED body encircles cladding steel section bar a week along perpendicular to steel section bar length direction's direction, the PLASTIC LAMINATED body is provided with the multiunit with group as the unit along steel section bar length direction.

Through adopting above-mentioned technical scheme, a plurality of PLASTIC LAMINATED bodies parcel is in the steel section outside to play tighter guard action to the steel section, thereby improve the fire behavior of steel section.

Optionally, the two adjacent fireproof plate bodies are sealed through fireproof glue.

Through adopting above-mentioned technical scheme, the fire prevention glue has better fire-proof ability, and two adjacent PLASTIC LAMINATED bodies are sealed through the fire prevention glue, can reduce two PLASTIC LAMINATED bodies and take place to connect not hard up possibility when the conflagration.

Optionally, the first fire-resistant layer is made of a cement board.

By adopting the technical scheme, the cement board has better heat resistance, and the melting point of the cement board is above 1000 ℃ so as to improve the fireproof capacity of the fireproof board body.

Optionally, the third fire prevention layer is made of basalt fiber boards.

By adopting the technical scheme, the basalt fiber board has better heat resistance, and the melting point of the basalt fiber board is 1450-.

Optionally, the thickness of the fire prevention plate body is 20-25 mm.

By adopting the technical scheme, the total thickness of the three-layer structure of the fireproof plate body is 20-25mm, and the fire can be blocked for more than three hours, so that the steel section bar is well protected, and the possibility of damage to the steel section bar in a fire disaster is reduced.

Drawings

Fig. 1 is a schematic structural view of a fire protection plate for a steel structure building, in which a fire protection plate is mounted on a steel section according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a steel profile with the body of the fire shield in an embodiment of the present application mounted thereto.

Fig. 3 is an exploded view of the flame retardant panel body in an embodiment of the application (shown to illustrate the structure of the second flame retardant layer).

Fig. 4 is a partial view taken along a-a in fig. 3 (to show a connecting structure of the card member and the card slot).

Description of reference numerals: 1. a steel profile; 2. a fire retardant panel body; 21. a first fire resistant layer; 211. a card slot; 22. a second fire-resistant layer; 221. a frame; 2211. filling the grids; 222. a refractory structure; 23. a third fire prevention layer; 3. buckling; 31. a clamping block; 4. a fastener; 5. a reinforcing plate; 6. and a limiting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses PLASTIC LAMINATED for steel construction building. Referring to fig. 1, the fire-proof plate for steel structure building includes a plurality of fire-proof plate bodies 2, and fire-proof plate body 2 is three layer construction, and a plurality of fire-proof plate bodies 2 closely cladding is in the 1 outside of steel section bar to form tight flame retardant coating in the 1 outside of steel section bar, in order to stretch to the intensity of a fire and play the barrier effect, reduce the speed that steel section bar 1 heaied up when the conflagration simultaneously, thereby improve steel section bar 1's fire resistance.

Referring to fig. 2 and 3, the fire-proof plate body 2 is rectangular plate-shaped, the fire-proof plate body 2 includes a first fire-proof layer 21, a second fire-proof layer 22 and a third fire-proof layer 23 which are sequentially arranged, the first fire-proof layer 21 is made of a cement board, and is installed on the steel section bar 1 in a clamping manner. The second fireproof layer 22 comprises a frame 221 and a fireproof structure 222 filled in the frame 221, wherein the frame 221 is made of high silica fiber, a plurality of filling grids 2211 are arranged on the frame 221, the filling grids 2211 are in a regular hexagon shape, and the frame 221 is in a honeycomb shape due to the plurality of filling grids 2211; in this embodiment, the refractory structure 222 is made of magnesium oxide particles, and the magnesium oxide particles are filled in the plurality of filling grids 2211, so as to form the second fire-retardant layer 22 with heat-resistant and fire-resistant functions. The third fire prevention layer 23 is made of basalt fiber board and bonded to the frame 221 of the second fire prevention layer 22 by a fire-proof adhesive, and the third fire prevention layer 23 can preliminarily block fire.

Referring to fig. 2 and 3, the thickness of the first fireproof layer 21 is 6-8mm, the thickness of the second fireproof layer 22 is 12-14mm, the thickness of the third fireproof layer 23 is 2-3mm, namely, the total thickness of the fireproof plate body 2 is 20-25mm, through the combined action of the first fireproof layer 21, the second fireproof layer 22 and the third fireproof layer 23, the blocking time for fire can reach 3h, a good heat blocking effect is achieved, the temperature rising speed of the steel section bar 1 in fire can be reduced, and therefore the fireproof capacity of the steel section bar 1 is improved.

Referring to fig. 1 and 2, the fireproof plate body 2 is mainly used for fireproof protection of a bearing beam in a steel structure building, in the embodiment, the steel section 1 is H-shaped steel, wherein two flange plates of the H-shaped steel are respectively provided with one fireproof plate body 2, two sides of a web plate of the H-shaped steel are respectively provided with one fireproof plate body 2, and four fireproof plate bodies 2 can tightly surround the H-shaped steel for one circle; four fireproof plate bodies 2 surrounding the H-shaped steel for one circle are in a group, two adjacent fireproof plate bodies 2 in the same group are mutually vertical, and the positions where the edges are connected are sealed through fireproof glue; the PLASTIC LAMINATED body 2 uses the group as the unit along the length direction align to grid of H shaped steel, also seals through fire-proof glue between two adjacent PLASTIC LAMINATED bodies 2 of H shaped steel length direction for the connection of two adjacent PLASTIC LAMINATED bodies 2 receives the possibility of damage in the conflagration lower.

Referring to fig. 1 and 2, in order to facilitate the installation of the fire protection plate body 2 on the steel profile 1, a buckle 3 is disposed on one side of the first fire protection layer 21 close to the steel profile 1, and the buckle 3 includes two spaced "L" shaped blocks 31. One end of each fixture block 31 is integrally formed with the first fireproof layer 21, and two L-shaped fixture blocks 31 used for clamping the flange plates of the steel section 1 extend towards the direction close to each other from the end far away from the first fireproof layer 21 and are clamped with the two ends of the corresponding flange plates on the steel section 1; two L-shaped clamping blocks 31 arranged on the first fireproof layers 21 on two sides of the web plate of the steel section bar 1 extend towards the direction away from each other from one end of the first fireproof layer 21, and are respectively clamped with the clamping blocks 31 on the adjacent fireproof plate bodies 2; two fixture blocks 31 corresponding to the flange plate of the steel section bar 1 are slidably mounted on the steel section bar 1, so that the installation of the fireproof plate body 2 on the flange plate of the steel section bar 1 can be realized, then the fixture blocks 31 on the first fireproof layers 21 corresponding to the two sides of the web plate of the steel section bar 1 and the fixture blocks 31 on the adjacent fireproof plate bodies 2 are clamped and slidably mounted on the steel section bar 1, and the installation of the fireproof plate bodies 2 on the two sides of the web plate of the steel section bar 1 can be realized.

Referring to fig. 1 and 2, the edge of the first fireproof layer 21 is fixedly connected with the steel profile 1 through fireproof glue so as to fix the position of the fireproof plate body 2 along the length direction of the steel profile 1.

Referring to fig. 4, in order to facilitate the connection of the second flame retardant layer 22 with the first flame retardant layer 21, a plurality of clips 4 are provided at regular intervals between the first flame retardant layer 21 and the second flame retardant layer 22, thereby stably mounting the second flame retardant layer 22 on the first flame retardant layer 21. Fastener 4 is "L" shape, and one end fixed connection is on frame 221, first flame retardant coating 21 is close to the one side of frame 221 and has seted up draw-in groove 211 with fastener 4 matched with, draw-in groove 211 also is "L" shape, and the opening sets up towards frame 221, can put into draw-in groove 211 with fastener 4 by the opening part of draw-in groove 211 along the thickness direction of first flame retardant coating 21, then establish fastener 4 cooperation card in draw-in groove 211 to the removal of frame 221 along first flame retardant coating 21 thickness direction is restricted. To make the connection between the frame 221 and the first fireproof layer 21 more stable, fireproof glue is applied to the side of the frame 221 close to the first fireproof layer 21, so as to make the connection between the frame 221 and the first fireproof layer 21 more tight.

Referring to fig. 4, all the side walls of the clamping groove 211 are provided with the reinforcing plates 5, the reinforcing plates 5 are made of 304 stainless steel plates, the reinforcing plates 5 are fixed on the side walls of the clamping groove 211 in an adhesive manner, and the reinforcing plates 5 can reinforce the clamping groove 211 so as to reduce the possibility that the side walls of the clamping groove 211 are damaged in the using process.

Referring to fig. 2 and 3, when the frame 221 is installed on the first fireproof layer 21, in order to facilitate positioning of the frame 221, four limiting plates 6 are adhered to one side of the first fireproof layer 21 close to the frame 221 through fireproof glue, the limiting plates 6 are made of cement, the four limiting plates 6 are respectively and correspondingly arranged on the outer sides of four side walls of the frame 221, and two adjacent limiting plates 6 are mutually connected in an adhesive manner. When the frame 221 is installed on the first fireproof layer 21, three limiting plates 6 in three corresponding positions are installed on the first fireproof layer 21 to form a 'U' -shaped groove, then the edge of the frame 221 is aligned with the 'U' -shaped groove formed by the three installed limiting plates 6, and the frame 221 can be positioned, so that the clamping pieces 4 on the frame 221 correspond to the clamping grooves 211 on the first fireproof layer 21 one by one; after the clamping pieces 4 on the frame 221 are clamped in the clamping grooves 211, the last limiting plate 6 is arranged on the first fireproof layer 21, and then the frame 221 can be fixed on the first fireproof layer 21.

The application embodiment a steel construction is PLASTIC LAMINATED's for building implementation principle does: firstly, assembling the fireproof plate body 2, positioning the frame 221 through the limiting plate 6, mounting the frame 221 on the first fireproof layer 21 through the clamping piece 4, and then filling the fireproof structure 222 in the filling grid 2211 to form a second fireproof layer 22; and finally, bonding the third fireproof layer 23 on the limiting plate 6, so that the installation of the fireproof plate body 2 can be completed.

After accomplishing a plurality of PLASTIC LAMINATED bodies 2 equipment, buckle 3 on the first flame retardant coating 21 of accessible is installed PLASTIC LAMINATED body 2 respectively at the flange board and the web both sides of steel section bar 1, and a plurality of PLASTIC LAMINATED bodies 2 are sealed to be covered in the steel section bar 1 outside to improve steel section bar 1's fire-resistant ability.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a PLASTIC LAMINATED for steel construction building, is including setting up PLASTIC LAMINATED body (2) in steel section bar (1) outside, its characterized in that: the fireproof plate comprises a fireproof plate body (2), and is characterized in that the fireproof plate body (2) comprises a first fireproof layer (21), a second fireproof layer (22) and a third fireproof layer (23) which are sequentially and fixedly arranged, a buckle (3) used for connecting steel profiles (1) is arranged on the first fireproof layer (21), the second fireproof layer (22) comprises a frame (221) fixedly connected with the first fireproof layer (21) and the third fireproof layer (23), a plurality of filling grids (2211) are arranged on the frame (221), and the filling grids (2211) are filled with fireproof structures (222).

2. The fire protection plate for steel structure construction according to claim 1, wherein: the filling grids (2211) are in a regular hexagon shape, and a plurality of filling grids (2211) are arranged in a honeycomb shape.

3. The fire protection plate for steel structure construction according to claim 1, wherein: the frame (221) is provided with a plurality of clamping pieces (4), and the first fireproof layer (21) is provided with a plurality of clamping grooves (211) used for being matched with the clamping pieces (4).

4. The fire protection plate for steel structure construction according to claim 3, wherein: the first fireproof layer (21) is provided with a plurality of limiting plates (6) which are respectively used for limiting different edges of the frame (221).

5. The fire protection plate for steel structure construction according to claim 1, wherein: the fireproof plate is characterized in that the fireproof plate body (2) is provided with a plurality of groups in the unit, the fireproof plate body (2) is arranged in the same group and surrounds the coated steel section bar (1) in a circle along the direction perpendicular to the length direction of the steel section bar (1), and the fireproof plate body (2) is provided with a plurality of groups in the unit along the length direction of the steel section bar (1).

6. The fire protection plate for steel structure construction according to claim 5, wherein: the two adjacent fireproof plate bodies (2) are sealed through fireproof glue.

7. The fire protection plate for steel structure construction according to claim 1, wherein: the first fireproof layer (21) is made of a cement board.

8. The fire protection plate for steel structure construction according to claim 1, wherein: the third fire prevention layer (23) is made of basalt fiber boards.

9. The fire protection plate for steel structure construction according to claim 1, wherein: the thickness of the fireproof plate body (2) is 20-25 mm.