Building fireproof structure and steel structure building structure

Abstract

The utility model provides a building fireproof structure and a steel structure building structure, and relates to the technical field of buildings, the building fireproof structure comprises a building body, and the building body comprises a roof; the firewall is arranged in the building body and connected with the roof, and the firewall can divide an inner cavity of the building body into a plurality of fireproof subareas; the fireproof suspended ceiling is arranged in the extending direction of the fireproof wall and arranged between the fireproof wall and the roof, and the fireproof suspended ceiling is arranged on a gap between the roof and the fireproof wall in a covering mode. The fireproof suspended ceiling is arranged in the building body and can cover the gap between the roof and the fireproof wall, so that the gap is well sealed, fire is prevented from spreading to other fireproof subareas along the gap between the roof and the fireproof wall, a good fireproof effect is achieved, and the fireproof effect is good. And the fireproof performance is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a building fire protection structure and a steel structure building structure. Background Art

[0002] In the field of industrial production, more and more steel structure buildings are put into use due to their advantages such as easy manufacturing and reliable structure. Especially in the logistics industry, steel structure buildings can be used as places for storage and sorting. However, in the use of steel structure buildings, special attention should be paid to the fire prevention of steel structure buildings. In the prior art, fire walls are generally used to separate steel structure buildings to prevent the spread of fire in different fire partitions. Among them, fire walls are generally made of lightweight material walls or masonry walls. During the installation of the fire wall, there will be a matching gap between the top of the fire wall and the roof of the steel structure building, which reduces the separation effect of the fire wall, resulting in the fire being able to spread between adjacent fire partitions with the help of the matching gap, posing a major safety hazard.

[0003] Therefore, how to improve the fire protection effect between the fire wall and the roof of the steel structure building to prevent the spread of fire has become a technical problem that needs to be solved urgently. Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a building fire protection structure and a steel structure building structure to overcome the defects of the prior art. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the utility model is to provide a building fire protection structure and a steel structure building structure, which are used to improve the fire protection effect between the fire wall and the roof of the steel structure building structure to prevent the spread of fire.

[0005] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions. The utility model provides a building fire protection structure, including:

[0006] A building body, wherein the building body includes a roof;

[0007] A fire wall, which is arranged in the building body and connected to the roof, and can divide the inner cavity of the building body into a plurality of fire partitions;

[0008] A fireproof ceiling is arranged along the extension direction of the fire wall and placed between the fire wall and the roof; and a fireproof ceiling cover is arranged on the gap between the roof and the fire wall.

[0009] In a preferred embodiment of the present utility model, the fire wall includes a wall support frame and a first fire protection structure. The wall support frame is arranged in the building body and connected to the roof. The first fire protection structure is laid on the wall support frame.

[0010] In a preferred embodiment of the present invention, the wall support frame includes at least one supporting member and at least one supporting member, the supporting member is connected to the roof, the supporting member is arranged between the supporting member and the bottom of the building body, and the supporting member is connected to the supporting member.

[0011] In a preferred embodiment of the present invention, the first fireproof structure includes a first fireproof layer, and the first fireproof layer is laid on the wall support frame.

[0012] In a preferred embodiment of the present invention, the first fireproof layer is laid on one side or both sides of the wall support frame; or, at least part of the wall support frame is embedded in the first fireproof layer.

[0013] In a preferred embodiment of the present invention, the fireproof ceiling includes a ceiling bracket and a second fireproof structure, the ceiling bracket is connected to the roof, and the second fireproof structure is laid on the ceiling bracket and covers the gap between the roof and the wall support frame.

[0014] In a preferred embodiment of the present invention, the second fireproof structure includes a second fireproof layer, and the second fireproof layer is laid on the ceiling bracket.

[0015] In a preferred embodiment of the present invention, the second fireproof layer includes a fire-resistant gypsum board and a rock wool felt layer, the fire-resistant gypsum board is laid on the ceiling bracket, and the rock wool felt layer is laid on the inner wall of the fire-resistant gypsum board.

[0016] In a preferred embodiment of the present invention, a ceiling vapor barrier layer is laid on the outer side wall of the second fireproof layer.

[0017] In a preferred embodiment of the present invention, the second fire protection layer includes a first ceiling fire protection section and a second ceiling fire protection section, the first ceiling fire protection section is laid on the ceiling bracket along the setting direction of the roof, and the second ceiling fire protection section connects the outer edge of the first ceiling fire protection section and the roof.

[0018] In a preferred embodiment of the present invention, the second suspended ceiling fireproof section is provided with an angle piece, and the second suspended ceiling fireproof section is connected to the roof through the angle piece.

[0019] In a preferred embodiment of the present invention, the second fire protection layer also includes a third suspended ceiling fire protection section, the third suspended ceiling fire protection section is laid on the top of the wall support frame, and the third suspended ceiling fire protection section connects the inner edge of the first suspended ceiling fire protection section and the roof.

[0020] In a preferred embodiment of the utility model, the roof includes a purlin structure arranged on the building body, a composite insulation layer arranged on the purlin structure, the fire wall is connected to the purlin structure, and the fireproof ceiling cover is arranged on the gap between the composite insulation layer and the fire wall.

[0021] In a preferred embodiment of the present invention, the composite thermal insulation layer comprises an outer plate, a thermal insulation layer and an inner plate which are sequentially arranged along the height direction, and the composite thermal insulation layer is connected to the purlin structure via a connecting bracket.

[0022] In a preferred embodiment of the utility model, the roof includes a composite insulation layer arranged on the building body, and a purlin structure embedded in the composite insulation layer, the fire wall is connected to the composite insulation layer, and the fireproof ceiling cover is arranged on the gap between the composite insulation layer and the fire wall.

[0023] In a preferred embodiment of the present invention, the composite thermal insulation layer comprises an outer plate, a thermal insulation layer and an inner plate arranged in sequence along the height direction, and the purlin structure is arranged between the thermal insulation layer and the inner plate.

[0024] In a preferred embodiment of the present invention, the composite thermal insulation layer further comprises a thermal insulation vapor barrier layer, and the thermal insulation vapor barrier layer is laid on the bottom surface of the thermal insulation layer.

[0025] In a preferred embodiment of the present invention, the composite thermal insulation layer further comprises a waterproof cushion layer, and the waterproof cushion layer is laid on the top surface of the thermal insulation layer.

[0026] In a preferred embodiment of the present invention, the purlin structure is coated with a fire retardant coating.

[0027] The utility model also provides a steel structure building structure, comprising the above-mentioned building fire protection structure.

[0028] The technical solution of the utility model has the following significant beneficial effects:

[0029] When the building fireproof structure of the utility model is used, the fire wall is arranged inside the building body, and the fire wall is connected to the roof. By arranging the fire wall inside the building body, the inner cavity of the building body can be divided into a plurality of fire partitions by using the fire wall, and the fire partitions can be used to prevent the fire from spreading in the building body, thereby improving the use safety of the building body. In addition, by arranging the fireproof ceiling inside the building body, the fireproof ceiling can be covered on the gap between the roof and the fire wall, thereby playing a good sealing role at the gap, preventing the fire from spreading to other fire partitions along the gap between the roof and the fire wall, thereby playing a good fireproof role and significantly improving the fireproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0032] Figure 1 A schematic cross-sectional view of an embodiment of the building fire protection structure of the utility model;

[0033] Figure 2 It is a cross-sectional structural schematic diagram of another embodiment of the building fire protection structure of the utility model;

[0034] Figure 3 A schematic cross-sectional view of another embodiment of the building fire protection structure of the utility model;

[0035] Figure 4 For this utility model Figure 1 Schematic diagram of the AA section.

[0036] Reference numerals in the above drawings:

[0037] 100, roof; 110, purlin structure; 120, composite insulation layer; 121, outer plate; 122, insulation layer; 123, inner plate; 124, insulation vapor barrier; 125, waterproof cushion layer;

[0038] 200, fire wall; 210, wall support frame; 211, supporting member; 212, supporting member; 220, first fire protection structure; 221, first fire protection layer;

[0039] 300, fireproof ceiling; 310, ceiling bracket; 320, second fireproof structure; 321, second fireproof layer; 3211, first ceiling fireproof section; 3212, second ceiling fireproof section; 3213, third ceiling fireproof section. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Implementation Method 1

[0042] Please refer to Figure 1 As shown, in an embodiment of the utility model, a building fire protection structure is provided, which includes at least a building body, a fire wall 200, and a fireproof ceiling 300. The building body includes a roof 100; the fire wall 200 is arranged in the building body and connected to the roof 100, and the fire wall 200 can divide the inner cavity of the building body into a plurality of fire partitions; the fireproof ceiling 300 is arranged along the extension direction of the fire wall 200 and is placed between the fire wall 200 and the roof 100, and the fireproof ceiling 300 is covered on the gap between the roof 100 and the fire wall 200.

[0043] In general, when the fireproof structure of the building is used, the fire wall 200 is arranged inside the building body, and the fire wall 200 is connected to the roof 100. By arranging the fire wall 200 inside the building body, the inner cavity of the building body can be divided into a plurality of fire partitions by the fire wall 200, and the fire partitions can prevent the fire from spreading in the building body, thereby improving the use safety of the building body.

[0044] Furthermore, by setting a fireproof ceiling 300 in the building body, the fireproof ceiling 300 can be covered on the gap between the roof 100 and the fire wall 200, thereby playing a good sealing role in the gap, preventing the fire from spreading along the gap between the roof 100 and the fire wall 200 to other fire partitions, thereby playing a good fire prevention role and significantly improving the fire protection performance.

[0045] Specifically, the overall fire resistance limit of the fireproof ceiling 300 is ≥ 1.0 h. In addition, the width of the fireproof ceiling 300 protruding from the fire wall 200 is ≥ 2.0 m. The plurality of can be two, three or more, and no specific numerical value is limited here.

[0046] In an embodiment of the present utility model, the fire wall 200 includes a wall support frame 210 and a first fire protection structure 220 . The wall support frame 210 is disposed in the building body and connected to the roof 100 , and the first fire protection structure 220 is laid on the wall support frame 210 .

[0047] The wall support frame 210 can serve as a basis for installing the first fire protection structure 220 , and the wall support frame 210 can also support the roof 100 , thereby improving the structural stability of the roof 100 .

[0048] In a specific embodiment, the wall support frame 210 includes at least one supporting member 211 and at least one supporting member 212 , the supporting member 211 is connected to the roof 100 , the supporting member 212 is arranged between the supporting member 211 and the bottom of the building body, and the supporting member 212 is connected to the supporting member 211 .

[0049] Preferably, the supporting member 211 is a steel beam, which is arranged along the laying direction of the roof 100 and connected to the roof 100. The supporting member 212 is a steel vertical beam, which connects the bottom of the building body with the steel beam. The first fire protection structure 220 and the roof 100 can be better supported by the steel beam and the steel vertical beam.

[0050] Of course, in other feasible embodiments, designers can adjust the specific structure of the wall support frame 210 according to usage requirements, and no specific limitation is made here.

[0051] In an embodiment of the present utility model, the first fireproof structure 220 includes a first fireproof layer 221 , and the first fireproof layer 221 is laid on the wall support frame 210 .

[0052] By setting the first fireproof layer 221 on the wall support frame 210, the first fireproof layer 221 cooperates with the wall support frame 210 to divide the inner cavity of the building body into multiple fire partitions. The first fireproof layer 221 can prevent the spread of fire, thereby playing a good fire prevention role.

[0053] In a specific embodiment, if Figure 3 In the embodiment shown, the first fireproof layer 221 is laid on one side of the wall support frame 210. By laying the first fireproof layer 221 on one side of the wall support frame 210, the first fireproof layer 221 can play a fireproof role in the area where one side of the wall support frame 210 is located, thereby preventing the fire from spreading to other fire partitions.

[0054] In another specific embodiment, the first fireproof layer 221 is laid on both sides of the wall support frame 210. By arranging the first fireproof layer 221 on both sides of the wall support frame 210, the first fireproof layer 221 on both sides can play a fireproof role on both sides of the wall support frame 210, and has a better fireproof effect.

[0055] In another specific embodiment, at least part of the wall support frame 210 is embedded in the first fireproof layer 221. By embedding the wall support frame 210 in the first fireproof layer 221, the connection strength between the wall support frame 210 and the first fireproof layer 221 is improved, and the risk of accidental separation of the first fireproof layer 221 is reduced.

[0056] Of course, in other feasible embodiments, designers can adjust the installation method between the first fireproof layer 221 and the wall support frame 210 according to usage requirements, and no specific restrictions are made here.

[0057] In an embodiment of the utility model, the fireproof ceiling 300 includes a ceiling bracket 310 and a second fireproof structure 320 . The ceiling bracket 310 is connected to the roof 100 . The second fireproof structure 320 is laid on the ceiling bracket 310 and covers the gap between the roof 100 and the wall support frame 210 .

[0058] By utilizing the ceiling bracket 310, the second fireproof structure 320 can be better fixed, and the second fireproof structure 320 can seal the gap between the roof 100 and the wall support frame 210, thereby preventing the fire from spreading along the gap between the roof 100 and the fire wall 200 to other fire partitions, thereby playing a good fireproofing role and significantly improving the fireproofing performance.

[0059] The designer can adjust the specific structure of the ceiling bracket 310 according to the use requirements. For example, the ceiling bracket 310 is composed of multiple structures such as secondary keels, main keels, cross-bracing keels, light steel keels, self-tapping screws, hanging parts or hanging parts, etc., and no specific restrictions are made here. Among them, the light steel keel system of the fireproof ceiling 300 and the connection of its main structure need to be designed according to the engineering.

[0060] In an embodiment of the present utility model, the second fireproof structure 320 includes a second fireproof layer 321 , and the second fireproof layer 321 is laid on the ceiling bracket 310 .

[0061] By laying the second fireproof layer 321 on the ceiling bracket 310, the second fireproof layer 321 cooperates with the ceiling bracket 310 to stably cover the gap between the roof 100 and the fire wall 200, thereby preventing the fire from spreading along the gap in different fire partitions.

[0062] In a specific embodiment, the second fireproof layer 321 includes a fire-resistant gypsum board and a rock wool felt layer. The fire-resistant gypsum board is laid on the ceiling bracket 310, and the rock wool felt layer is laid on the inner wall of the fire-resistant gypsum board. Preferably, the number of layers of the fire-resistant gypsum board is set to 2, the thickness of a single layer is required to be 12 thick, the center distance of the main (load-bearing) keel is ≤1.2m, and the center distance of the secondary (covering) keel is ≤0.5m. In addition, the bulk density of the rock wool felt is required to be 100Kg / m 2 .

[0063] Of course, in other feasible embodiments, designers can adjust the specific structure of the second fireproof layer 321 according to usage requirements, and no specific restrictions are made here.

[0064] In the embodiment of the utility model, a ceiling vapor barrier is laid on the outer side wall of the second fireproof layer 321. By arranging the ceiling vapor barrier on the second fireproof layer 321, water vapor can be prevented from contacting the fire-resistant paper-faced gypsum board in the second fireproof layer 321, thereby improving the service life of the fire-resistant paper-faced gypsum board.

[0065] Designers can determine the specific material of the ceiling vapor barrier according to usage requirements, such as plastic material, etc., and no specific restrictions are made here.

[0066] In an embodiment of the utility model, the second fire protection layer 321 includes a first ceiling fire protection section 3211 and a second ceiling fire protection section 3212. The first ceiling fire protection section 3211 is laid on the ceiling bracket 310 along the setting direction of the roof 100, and the second ceiling fire protection section 3212 connects the outer edge of the first ceiling fire protection section 3211 with the roof 100.

[0067] By cooperating with the first suspended ceiling fireproof section 3211 and the second suspended ceiling fireproof section 3212 , the second fireproof layer 321 can be roughly constructed in a hood shape, so that it can be better covered on the gap between the roof 100 and the fire wall 200 .

[0068] The second fireproof layer 321 is symmetrically arranged with respect to the fire wall 200 , so as to provide fireproofing effect to the gaps on both sides between the roof 100 and the fire wall 200 .

[0069] Designers can adjust the specific structures of the first suspended ceiling fire protection section 3211 and the second suspended ceiling fire protection section 3212 according to usage requirements, and no specific restrictions are made here.

[0070] In the implementation manner of the utility model, a corner piece is provided on the second suspended ceiling fireproof section 3212, and the second suspended ceiling fireproof section 3212 is connected to the roof 100 through the corner piece.

[0071] By arranging corner pieces on the second suspended ceiling fireproof section 3212, the corner pieces can improve the matching accuracy between the second suspended ceiling fireproof section 3212 and the roof 100, which is helpful to eliminate the gap between the second suspended ceiling fireproof section 3212 and the roof 100.

[0072] Designers can adjust the specific structure of the corner wrapping parts according to usage requirements, and no specific restrictions are made here.

[0073] Furthermore, the second fire protection layer 321 also includes a third suspended ceiling fire protection section 3213, which is laid on the top of the wall support frame 210, and the third suspended ceiling fire protection section 3213 connects the inner edge of the first suspended ceiling fire protection section 3211 and the roof 100.

[0074] By setting the third suspended ceiling fire protection section 3213 between the first suspended ceiling fire protection section 3211 and the wall support frame 210, the third suspended ceiling fire protection layer can better connect the first suspended ceiling fire protection layer and the fire wall 200, thereby achieving a better fire protection effect.

[0075] Among them, a caulking material layer and a metal package can be arranged between the first suspended ceiling fire protection section 3211, the second suspended ceiling fire protection section 3212 and the third suspended ceiling fire protection section 3213 to eliminate gaps, thereby achieving a better sealing effect.

[0076] In a feasible implementation of the present utility model, if Figure 1 In the illustrated embodiment, the roof 100 includes a purlin structure 110 disposed on the building body, a composite insulation layer 120 disposed on the purlin structure 110 , a fire wall 200 connected to the purlin structure 110 , and a fireproof ceiling 300 cover disposed on a gap between the composite insulation layer 120 and the fire wall 200 .

[0077] By arranging the purlin structure 110 on the building body, the purlin structure 110 can better support the composite insulation layer 120, thereby improving the installation stability of the composite insulation layer 120. Preferably, the overall fire resistance limit of the composite insulation layer 120 is ≥0.5h.

[0078] Designers can adjust the specific structure of the purlin structure 110 according to usage requirements. For example, the purlin structure 110 is composed of multiple purlins, and the multiple purlins are laid on the top of the building body according to the design. No specific limitation is made here.

[0079] In an embodiment of the present invention, the composite insulation layer 120 includes an outer plate 121, an insulation layer 122 and an inner plate 123 which are sequentially arranged along the height direction, and the composite insulation layer 120 is connected to the purlin structure 110 via a connecting bracket.

[0080] By arranging the thermal insulation layer 122 between the outer plate 121 and the inner plate 123, the outer plate 121 and the inner plate 123 can protect the thermal insulation layer 122, thereby increasing the service life of the thermal insulation layer 122. The thermal insulation layer 122 can also play a heat insulation role, which is conducive to maintaining the temperature inside the building.

[0081] Furthermore, both the outer plate 121 and the inner plate 123 can be made of fire-resistant materials, thereby isolating the thermal insulation layer 122 and preventing the thermal insulation layer 122 from contacting a fire source.

[0082] In a specific embodiment, the outer plate 121 is an outer laminated metal plate, and the inner plate 123 is an inner laminated metal plate. Designers can adjust the specific materials and structures of the outer plate 121 and the inner plate 123 according to usage requirements, and no specific restrictions are made here.

[0083] In another embodiment of the present invention, Figure 2 In the embodiment shown, the roof 100 includes a composite insulation layer 120 arranged on the building body, and a purlin structure 110 embedded in the composite insulation layer 120, the fire wall 200 is connected to the composite insulation layer 120, and the fireproof ceiling 300 is covered on the gap between the composite insulation layer 120 and the fire wall 200.

[0084] By arranging the purlin structure 110 in the composite thermal insulation layer 120 , the composite thermal insulation layer 120 can also protect the purlin structure 110 , thereby preventing the purlin structure 110 from being directly exposed to the air.

[0085] In a specific embodiment, the composite insulation layer 120 includes an outer plate 121 , an insulation layer 122 , and an inner plate 123 which are sequentially arranged along the height direction, and the purlin structure 110 is arranged between the insulation layer 122 and the inner plate 123 .

[0086] Of course, in other feasible embodiments, designers can adjust the specific structure of the roof 100 according to usage, and no specific limitation is made here.

[0087] In the implementation mode of the present utility model, Figure 4 In the illustrated embodiment, the composite thermal insulation layer 120 further includes a thermal insulation vapor barrier layer 124 , which is laid on the bottom surface of the thermal insulation layer 122 .

[0088] By laying the thermal insulation vapor barrier layer 124 on the bottom surface of the thermal insulation layer 122 , the thermal insulation vapor barrier layer 124 can block water vapor from contacting the thermal insulation layer 122 , thereby improving the use environment of the thermal insulation layer 122 and enhancing the thermal insulation effect of the thermal insulation layer 122 .

[0089] Designers can adjust the material of the thermal insulation vapor barrier layer 124 according to usage requirements. For example, the thermal insulation vapor barrier layer 124 is made of plastic material, and no specific limitation is made here.

[0090] In the implementation mode of the present utility model, Figure 4 In the illustrated embodiment, the composite thermal insulation layer 120 further includes a waterproof cushion layer 125 , which is laid on the top surface of the thermal insulation layer 122 .

[0091] By laying the waterproof cushion layer 125 on the top surface of the thermal insulation layer 122 , the waterproof cushion layer 125 can play a waterproof role and prevent the thermal insulation layer 122 from contacting the water body, thereby improving the use environment of the thermal insulation layer 122 and enhancing the thermal insulation effect of the thermal insulation layer 122 .

[0092] In the embodiment of the present invention, a fireproof coating is coated on the purlin structure 110. By providing the fireproof coating on the purlin structure 110, the fireproof performance of the purlin structure 110 is improved. The designer can adjust the specific composition of the protective coating on the purlin structure 110 according to the use requirements, and no specific limitation is made here.

[0093] Implementation Method 2

[0094] The embodiment of the present invention further provides a steel structure building structure, which includes the building fire protection structure described in the first embodiment.

[0095] The specific structure, working principle and beneficial effects of the building fire protection structure are the same as those described in the first embodiment, and will not be repeated here. The building fire protection structure can divide the inner cavity of the steel structure building structure into multiple fire partitions by using the building fire protection structure in the first embodiment, and can eliminate the gaps between different fire partitions through the building fire protection structure, thereby preventing the fire from spreading between different fire partitions, and having a better fire protection effect.

[0096] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0097] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A building fire protection structure, It is characterized in that include: A building body, wherein the building body includes a roof; A fire wall, which is arranged in the building body and connected to the roof, and can divide the inner cavity of the building body into a plurality of fire partitions; A fireproof ceiling is arranged along the extension direction of the fire wall and placed between the fire wall and the roof; and a fireproof ceiling cover is arranged on the gap between the roof and the fire wall.

2. The building fire protection structure according to claim 1, It is characterized in that The fire wall includes a wall support frame and a first fire protection structure. The wall support frame is arranged in the building body and connected to the roof. The first fire protection structure is laid on the wall support frame.

3. The building fire protection structure according to claim 2, It is characterized in that The wall support frame includes at least one supporting member and at least one supporting member, the supporting member is connected to the roof, the supporting member is arranged between the supporting member and the bottom of the building body, and the supporting member is connected to the supporting member.

4. The building fire protection structure according to claim 2, It is characterized in that The first fireproof structure comprises a first fireproof layer, and the first fireproof layer is laid on the wall support frame.

5. The building fire protection structure according to claim 4, It is characterized in that The first fireproof layer is laid on one side or both sides of the wall support frame; or at least part of the wall support frame is embedded in the first fireproof layer.

6. The building fire protection structure according to claim 2, It is characterized in that The fireproof ceiling comprises a ceiling bracket and a second fireproof structure, wherein the ceiling bracket is connected to the roof, and the second fireproof structure is laid on the ceiling bracket and covers the gap between the roof and the wall support frame.

7. The building fire protection structure according to claim 6, It is characterized in that The second fireproof structure includes a second fireproof layer, and the second fireproof layer is laid on the ceiling bracket.

8. The building fire protection structure according to claim 7, It is characterized in that The second fireproof layer includes a fire-resistant gypsum board and a rock wool felt layer. The fire-resistant gypsum board is laid on the ceiling bracket, and the rock wool felt layer is laid on the inner wall of the fire-resistant gypsum board.

9. The building fire protection structure according to claim 7, It is characterized in that A suspended ceiling vapor barrier layer is laid on the outer side wall of the second fireproof layer.

10. The building fire protection structure according to claim 7, It is characterized in that The second fire protection layer includes a first ceiling fire protection section and a second ceiling fire protection section. The first ceiling fire protection section is laid on the ceiling bracket along the setting direction of the roof, and the second ceiling fire protection section connects the outer edge of the first ceiling fire protection section and the roof.

11. The building fire protection structure according to claim 10, It is characterized in that The second suspended ceiling fireproof section is provided with an angle piece, and the second suspended ceiling fireproof section is connected to the roof through the angle piece.

12. The building fire protection structure according to claim 10, It is characterized in that The second fireproof layer also includes a third suspended ceiling fireproof section, which is laid on the top of the wall support frame and connects the inner edge of the first suspended ceiling fireproof section and the roof.

13. The building fire protection structure according to claim 1, It is characterized in that The roof comprises a purlin structure arranged on the building body, a composite insulation layer arranged on the purlin structure, the fire wall is connected to the purlin structure, and the fireproof ceiling cover is arranged on the gap between the composite insulation layer and the fire wall.

14. The building fire protection structure according to claim 13, It is characterized in that The composite thermal insulation layer comprises an outer plate, a thermal insulation layer and an inner plate which are sequentially arranged along the height direction, and the composite thermal insulation layer is connected to the purlin structure via a connecting bracket.

15. The building fire protection structure according to claim 1, It is characterized in that The roof comprises a composite insulation layer arranged on the building body and a purlin structure embedded in the composite insulation layer; the fire wall is connected to the composite insulation layer; and the fireproof ceiling cover is arranged on the gap between the composite insulation layer and the fire wall.

16. The building fire protection structure according to claim 15, It is characterized in that The composite thermal insulation layer comprises an outer plate, a thermal insulation layer and an inner plate which are sequentially arranged along the height direction, and the purlin structure is arranged between the thermal insulation layer and the inner plate.

17. The building fire protection structure according to claim 13 or 15, It is characterized in that The composite thermal insulation layer also includes a thermal insulation vapor barrier layer, which is laid on the bottom surface of the thermal insulation layer.

18. The building fire protection structure according to claim 13 or 15, It is characterized in that The composite thermal insulation layer also includes a waterproof cushion layer, which is laid on the top surface of the thermal insulation layer.

19. The building fire protection structure according to claim 13 or 15, It is characterized in that The purlin structure is coated with a fireproof coating.

20. A steel structure building structure, It is characterized in that A building fire protection structure comprising the building fire protection structure according to any one of claims 1 to 19.

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