Interlayer fireproof structure

Abstract

The utility model relates to the technical field of building construction, and discloses an interlayer fireproof structure, which comprises a steel structure main body, a fireproof layer and a fireproof layer, the building outer wall is arranged on the outdoor side of the steel structure body, and a cavity is formed between the building outer wall and the steel structure body; and the fireproof structure is connected between the cross beam and the building outer wall and is suitable for separating a cavity between the steel structure main body and the building outer wall. According to the interlayer fireproof structure provided by the utility model, the fireproof structure is arranged between the steel structure main body and the building outer wall so as to be suitable for separating the cavity between the steel structure main body and the building outer wall, and an interlayer fireproof effect is achieved, so that an interlayer fireproof structure node between the steel structure main body and the building outer wall is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to an interlayer fire prevention structure. Background Art

[0002] With the rapid development of the construction industry, steel structure buildings have been widely used. At present, for the reinforced concrete main structure, its interlayer fire prevention structure is to turn up and down the galvanized steel plate and fix it on the concrete beam with screws. However, the above fire prevention structure is not applicable to the steel structure main structure. Therefore, for the steel structure main structure, there is still a lack of corresponding interlayer fire prevention structure nodes. Content of the Utility Model

[0003] In view of this, the utility model provides an interlayer fire prevention structure to solve the problem of the lack of interlayer fire prevention structure nodes applicable to the steel structure main body.

[0004] The utility model provides an interlayer fire prevention structure, including:

[0005] A steel structure main body, including a cross beam extending in the horizontal direction;

[0006] An exterior wall of the building, arranged on the outdoor side of the steel structure main body and forming a cavity between it and the steel structure main body;

[0007] A fire prevention structure, connected between the cross beam and the exterior wall of the building, and the fire prevention structure is suitable for partitioning the cavity between the steel structure main body and the exterior wall of the building.

[0008] Beneficial effect: By arranging a fire prevention structure between the steel structure main body and the exterior wall of the building, it is suitable for partitioning the cavity between the steel structure main body and the exterior wall of the building and achieving an interlayer fire prevention effect, thereby forming an interlayer fire prevention structure node between the steel structure main body and the exterior wall of the building.

[0009] In an optional implementation manner, the fire prevention structure includes a first fixing plate, the plane where the first fixing plate is located is arranged at an angle with the gravity direction, one side of the first fixing plate abuts against the cross beam, and the other side abuts against the exterior wall of the building, and the first fixing plate is suitable for partitioning the cavity.

[0010] In an optional implementation manner, the fire prevention structure further includes a second fixing plate, the second fixing plate is spaced from the first fixing plate in the gravity direction, and a receiving cavity is formed between the first fixing plate and the second fixing plate, and a fire prevention layer is suitable for being placed in the receiving cavity.

[0011] Beneficial effect: By arranging the first fixing plate and the second fixing plate at intervals to form a receiving cavity, and by placing a fire prevention layer in the receiving cavity, it is suitable for enhancing the fire prevention effect of the fire prevention structure.

[0012] In an optional implementation manner, the fire prevention layer includes a fireproof rock wool board or a fireproof gypsum board.

[0013] In an alternative embodiment, fireproof coatings are respectively provided on two end faces of the first fixing plate and the second fixing plate that are away from each other.

[0014] Beneficial effects: By respectively providing fireproof coatings on two end faces of the first fixing plate and the second fixing plate that are away from each other, it is convenient to enhance the fireproof effect of the first fixing plate and the second fixing plate.

[0015] In an alternative embodiment, the fireproof structure further includes a third fixing plate fixedly connected between the first fixing plate and the second fixing plate, and the third fixing plate is adapted to support and fix the first fixing plate and the second fixing plate.

[0016] Beneficial effects: By providing a third fixing plate between the first fixing plate and the second fixing plate, it is convenient to enhance the overall stability of the first fixing plate and the second fixing plate.

[0017] In an alternative embodiment, vertical keels are fixedly connected to a side of the steel structure main body facing the building exterior wall, and the vertical keels are respectively fixedly connected to the first fixing plate and the second fixing plate to be adapted to support and fix the first fixing plate and the second fixing plate.

[0018] In an alternative embodiment, along the horizontal direction, there are multiple first fixing plates, and adjacent two first fixing plates are abutted against each other at the vertical keel, and at least one of the first fixing plates is provided with a relief groove corresponding to the vertical keel to be adapted to form a relief for the vertical keel;

[0019] Along the horizontal direction, there are multiple second fixing plates, and adjacent two second fixing plates are abutted against each other at the vertical keel, and at least one of the second fixing plates is provided with a relief groove corresponding to the vertical keel to be adapted to form a relief for the vertical keel.

[0020] Beneficial effects: By providing relief grooves corresponding to the vertical keels on the first fixing plate and the second fixing plate, it is convenient to reduce the gap between adjacent two first fixing plates or adjacent two second fixing plates, thereby improving the integrity of the interlayer fireproof structure, and further improving the interlayer fireproof effect of the interlayer fireproof structure.

[0021] In an alternative embodiment, the vertical keel is located on a side of the building exterior wall facing the steel structure main body and is fixedly connected to the building exterior wall, and the vertical keel is adapted to support and fix the building exterior wall.

[0022] In an alternative embodiment, the interlayer fireproof structure further includes a horizontal keel, one end of the horizontal keel is fixedly connected to the vertical keel, the other end is fixedly connected to the steel structure main body, and the horizontal keel abuts against the bottom of the fireproof structure to be adapted to support the fireproof structure.

[0023] Beneficial effects: The fireproof structure is supported by the horizontal keel to enhance the connection stability between the fireproof structure, the main steel structure, and the building exterior wall. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the interlayer fireproof structure of the present invention;

[0026] Figure 2 It is Figure 1 The partial enlarged view of part A in

[0027] Description of the reference numerals:

[0028] 1. Main steel structure; 11. Cross beam; 2. Building exterior wall; 3. Fireproof structure; 31. First fixing plate; 32. Second fixing plate; 33. Fireproof layer; 34. Third fixing plate; 4. Cavity; 5. Vertical keel; 6. Horizontal keel; 7. Connecting frame. Specific Embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] The following Figure 1 and Figure 2 are used to describe the embodiments of the present utility model.

[0034] According to an embodiment of the present utility model, a floor fireproof structure is provided, including:

[0035] A steel structure main body 1, including a cross beam 11 extending in the horizontal direction;

[0036] An exterior building wall 2, disposed on the outdoor side of the steel structure main body 1, and a cavity 4 is formed between the exterior building wall 2 and the steel structure main body 1;

[0037] A fireproof structure 3, connected between the cross beam 11 and the exterior building wall 2, and the fireproof structure 3 is adapted to partition the cavity 4 between the steel structure main body 1 and the exterior building wall 2.

[0038] The floor fireproof structure provided in this embodiment is provided with a fireproof structure 3 between the steel structure main body 1 and the exterior building wall 2 to partition the cavity 4 between the steel structure main body 1 and the exterior building wall 2 and achieve the floor fireproof effect, thereby forming a floor fireproof structure node between the steel structure main body 1 and the exterior building wall 2.

[0039] Specifically, the cross beam 11 includes an I-beam and a box beam. Taking the exterior building wall 2 as an exterior curtain wall panel as an example, there is a gap between the exterior curtain wall panel and the steel structure main body 1, so that a cavity 4 is formed between the exterior curtain wall panel and the steel structure main body 1. If a fire occurs on a certain floor, the flame and thick smoke will cross to the upper floor through the cavity 4. Therefore, a fireproof structure 3 is provided between the cross beam 11 and the exterior building wall 2 to partition the cavity 4 between the exterior building wall 2 and the steel structure main body 1, thereby preventing the flame from burning across floors and the thick smoke from diffusing across floors. The fireproof structure 3 is arranged in a circle around the steel structure main body 1 to fully partition the gap between the upper and lower floors between the exterior building wall 2 and the steel structure main body 1, thereby effectively preventing the flame from burning across floors and the thick smoke from diffusing across floors.

[0040] In some embodiments, in combination with Figure 1 andFigure 2 As shown, the fireproof structure 3 includes a first fixing plate 31. The plane where the first fixing plate 31 is located is set at an angle to the direction of gravity. One side of the first fixing plate 31 abuts against the cross beam 11, and the other side abuts against the building exterior wall 2. The first fixing plate 31 is adapted to partition the cavity 4.

[0041] Specifically, the first fixing plate 31 can be a flat plate or a bent plate. The side of the first fixing plate 31 close to the cross beam 11 abuts against the cross beam 11, and the side of the first fixing plate 31 close to the building exterior wall 2 abuts against the building exterior wall 2. And the first fixing plate 31 is arranged around the steel structure main body 1 for one circle to facilitate partitioning the cavity 4, thereby preventing the flame from burning across floors and the thick smoke from diffusing across floors. Among them, the side of the first fixing plate 31 close to the cross beam 11 can be higher than or lower than the side of it close to the building exterior wall 2, or can be at the same height as the side of it close to the building exterior wall 2.

[0042] In some embodiments, as shown in Figure 1 and Figure 2 shown, the fireproof structure 3 further includes a second fixing plate 32. The second fixing plate 32 is arranged at an interval from the first fixing plate 31 in the direction of gravity. A receiving cavity is formed between the first fixing plate 31 and the second fixing plate 32, and a fireproof layer 33 is adapted to be placed in the receiving cavity.

[0043] The interlayer fireproof structure provided in this embodiment forms a receiving cavity by arranging the first fixing plate 31 and the second fixing plate 32 at an interval, and places a fireproof layer 33 in the receiving cavity to enhance the fireproof effect of the fireproof structure 3.

[0044] Specifically, the second fixing plate 32 can be a flat plate or a bent plate. The second fixing plate 32 is arranged at an interval from the first fixing plate 31 in the direction of gravity to facilitate forming a receiving cavity between the two, so as to facilitate placing the fireproof layer 33. The interlayer fireproof structure provided in this embodiment is simple in construction and can improve the fireproof effect of the fireproof structure 3. Preferably, both ends of the second fixing plate 32 abut against the steel structure main body 1 and the building exterior wall 2 respectively to enhance the effect of the fireproof structure 3 in preventing the flame from burning across floors and the thick smoke from diffusing across floors. As a feasible implementation form, the thickness of the first fixing plate 31 and / or the second fixing plate 32 is 1.5 mm.

[0045] In some embodiments, as shown in Figure 1 and Figure 2 shown, the fireproof layer 33 includes a fireproof rock wool board or a fireproof gypsum board.

[0046] Specifically, the fireproof layer 33 includes fireproof rock wool boards, fireproof gypsum boards, vermiculite boards, calcium silicate fiber boards and other flame retardant materials. The fireproof layer 33 can be one of the above materials or any combination of several of them to improve the fireproof and heat insulation effect of the fireproof layer 33.

[0047] In some embodiments, in combination with Figure 1 and Figure 2 as shown, fireproof coatings are respectively provided on the two end faces of the first fixing plate 31 and the second fixing plate 32 that are away from each other.

[0048] For the interlayer fireproof structure provided in this embodiment, by respectively providing fireproof coatings on the two end faces of the first fixing plate 31 and the second fixing plate 32 that are away from each other, it is convenient to enhance the fireproof effect of the first fixing plate 31 and the second fixing plate 32.

[0049] Specifically, the fireproof coating is formed by applying fireproof paint. The fireproof paint includes intumescent steel structure fireproof paint and non-intumescent steel structure fireproof paint. It should be noted that the fireproof paint belongs to the prior art in the technical field of steel structure fireproof paint and will not be elaborated here.

[0050] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the fireproof structure 3 further includes a third fixing plate 34 fixedly connected between the first fixing plate 31 and the second fixing plate 32. The third fixing plate 34 is adapted to support and fix the first fixing plate 31 and the second fixing plate 32.

[0051] For the interlayer fireproof structure provided in this embodiment, by providing the third fixing plate 34 between the first fixing plate 31 and the second fixing plate 32, it is convenient to enhance the overall stability of the first fixing plate 31 and the second fixing plate 32.

[0052] Specifically, the third fixing plate 34 can be a flat plate or a bent plate. As a preference, in combination with Figure 2 as shown, the third fixing plate 34 extends along the gravity direction and is located on the side of the first fixing plate 31 and the second fixing plate 32 close to the building exterior wall 2. The two ends of the third fixing plate 34 are respectively fixedly connected to the first fixing plate 31 and the second fixing plate 32 to support and fix the first fixing plate 31 and the second fixing plate 32. Additionally, the third fixing plate 34 can also be fixedly connected to the building exterior wall 2 to enhance the overall stability of the fireproof structure 3. As a feasible implementation form, the thickness of the third fixing plate 34 is 1.5 mm.

[0053] In some embodiments, in combination with Figure 1 and Figure 2 as shown, vertical keels 5 are fixedly connected to the side of the steel structure main body 1 facing the building exterior wall 2. The vertical keels 5 are respectively fixedly connected to the first fixing plate 31 and the second fixing plate 32 to support and fix the first fixing plate 31 and the second fixing plate 32.

[0054] As a feasible implementation form, the vertical keel 5 extends along the direction of gravity. The first fixing plate 31 and / or the second fixing plate 32 and / or the third fixing plate 34 are galvanized steel plates, and the vertical keel 5 is a steel keel, so that the first fixing plate 31 and / or the second fixing plate 32 and / or the third fixing plate 34 are fixedly connected to the vertical keel 5 by spot welding.

[0055] In some embodiments, in combination Figure 1 with Figure 2 as shown, along the horizontal direction, there are multiple first fixing plates 31. Two adjacent first fixing plates 31 are abutted against each other at the vertical keel 5. At least one of the first fixing plates 31 is provided with a relief groove corresponding to the vertical keel 5 to form a relief for the vertical keel 5.

[0056] Along the horizontal direction, there are multiple second fixing plates 32. Two adjacent second fixing plates 32 are abutted against each other at the vertical keel 5. At least one of the second fixing plates 32 is provided with a relief groove corresponding to the vertical keel 5 to form a relief for the vertical keel 5.

[0057] For the interlayer fireproof structure provided in this embodiment, by providing relief grooves corresponding to the vertical keel 5 on the first fixing plate 31 and the second fixing plate 32, it is convenient to reduce the gap between two adjacent first fixing plates 31 or two adjacent second fixing plates 32, thereby improving the integrity of the interlayer fireproof structure 3, and further improving the interlayer fireproof effect of the interlayer fireproof structure.

[0058] Specifically, multiple first fixing plates 31 are distributed around the steel structure main body 1 in a circle. One first fixing plate 31 is respectively arranged on both sides of the vertical keel 5 corresponding to the crossbeam 11 area. The relief groove can be opened on any one of the two first fixing plates 31; alternatively, grooves can be respectively opened at the positions of the two first fixing plates 31 corresponding to the vertical keel 5, and the two grooves are suitable for forming a relief groove. Among them, the size of the relief groove is adapted to the cross-sectional size of the vertical keel 5 to facilitate reducing the gap between two adjacent first fixing plates 31 and between the first fixing plate 31 and the vertical keel 5.

[0059] Multiple second fixing plates 32 are distributed around the steel structure main body 1 in a circle. One second fixing plate 32 is respectively arranged on both sides of the vertical keel 5 corresponding to the crossbeam 11 area. The relief groove can be opened on any one of the two second fixing plates 32; alternatively, grooves can be respectively opened at the positions of the two second fixing plates 32 corresponding to the vertical keel 5, and the two grooves are suitable for forming a relief groove. Among them, the size of the relief groove is adapted to the cross-sectional size of the vertical keel 5 to facilitate reducing the gap between two adjacent second fixing plates 32 and between the second fixing plate 32 and the vertical keel 5, thereby improving the blocking effect of the fireproof structure 3 on flames and thick smoke.

[0060] Preferably, fireproof sealant is filled in the gaps between two adjacent first fixing plates 31 and between the first fixing plate 31 and the vertical keel 5; fireproof sealant is filled in the gaps between two adjacent second fixing plates 32 and between the second fixing plate 32 and the vertical keel 5, so as to further improve the blocking effect of the fireproof structure 3 on flames and thick smoke.

[0061] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the vertical keel 5 is located on the side of the building exterior wall 2 facing the steel structure main body 1 and is fixedly connected to the building exterior wall 2, and the vertical keel 5 is adapted to support and fix the building exterior wall 2.

[0062] As a preferred implementation form, a connecting frame 7 is provided between the vertical keel 5 and the building exterior wall 2. The connecting frame 7 includes at least one cross bar extending in the horizontal direction and at least one vertical bar extending in the direction of gravity. One end of the cross bar is fixedly connected to the vertical keel 5, and the other end is fixedly connected to the vertical bar, so as to be adapted to support and fix the vertical bar on the vertical keel 5. The vertical bar is fixedly connected to the building exterior wall 2, so as to be adapted to support and fix the building exterior wall 2, so that the building exterior wall 2 and the vertical keel 5 form a fixed connection. Since the vertical keel 5 is fixedly connected to the steel structure main body 1, the building exterior wall 2 and the steel structure main body 1 are further fixedly connected.

[0063] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the interlayer fireproof structure further includes a horizontal keel 6. One end of the horizontal keel 6 is fixedly connected to the vertical keel 5, and the other end is fixedly connected to the cross beam 11. The horizontal keel 6 abuts against the bottom of the fireproof structure 3, so as to be adapted to support the fireproof structure 3.

[0064] The interlayer fireproof structure provided in this embodiment supports the fireproof structure 3 through the horizontal keel 6, so as to enhance the connection stability between the fireproof structure 3 and the steel structure main body 1 and the building exterior wall 2.

[0065] Preferably, the number of the horizontal keels 6 is more than one. One end of the horizontal keel 6 is fixedly connected to the vertical keel 5, and the other end is fixedly connected to the steel structure main body 1, so as to enhance the connection stability between the vertical keel 5 and the steel structure main body 1. Some of the horizontal keels 6 are located at the bottom of the fireproof structure 3 and abut against the bottom of the fireproof structure 3, so as to be adapted to support the fireproof structure 3, thereby improving the connection stability between the fireproof structure 3 and the steel structure main body 1 and the building exterior wall 2.

[0066] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. An interlayer fireproof structure, characterized in that, include: The steel structure body (1) comprises a crossbeam (11) extending in a horizontal direction; An exterior building wall (2) is arranged on the outdoor side of the steel structure body (1) and forms a cavity (4) between the exterior building wall and the steel structure body (1); A fireproof structure (3) is connected between the crossbeam (11) and the building outer wall (2), and the fireproof structure (3) is suitable for isolating the cavity (4) between the steel structure body (1) and the building outer wall (2).

2. The interlayer fireproof structure according to claim 1, characterized in that, The fireproof structure (3) comprises a first fixing plate (31), wherein the plane on which the first fixing plate (31) is located is arranged at an angle to the direction of gravity, one side of the first fixing plate (31) is pressed against the crossbeam (11), and the other side is pressed against the building exterior wall (2), and the first fixing plate (31) is suitable for separating the cavity (4).

3. The interlayer fireproof structure according to claim 2, characterized in that, The fireproof structure (3) further comprises a second fixing plate (32), wherein the second fixing plate (32) is spaced apart from the first fixing plate (31) in the direction of gravity, and an accommodating cavity is formed between the first fixing plate (31) and the second fixing plate (32), wherein the accommodating cavity is suitable for accommodating the fireproof layer (33).

4. The interlayer fireproof structure according to claim 3, characterized in that, The fireproof layer (33) comprises a fireproof rock wool board or a fireproof gypsum board.

5. The interlayer fireproof structure according to claim 3, characterized in that, Two end surfaces of the first fixing plate (31) and the second fixing plate (32) that are away from each other are respectively provided with a fireproof coating.

6. The interlayer fireproof structure according to claim 3, characterized in that, The fireproof structure (3) further comprises a third fixing plate (34) fixedly connected between the first fixing plate (31) and the second fixing plate (32), wherein the third fixing plate (34) is suitable for supporting and fixing the first fixing plate (31) and the second fixing plate (32).

7. The interlayer fireproof structure according to any one of claims 3-6, characterized in that, A vertical keel (5) is fixedly connected to one side of the steel structure body (1) facing the building exterior wall (2); the vertical keel (5) is respectively fixedly connected to the first fixing plate (31) and the second fixing plate (32) so as to be suitable for supporting and fixing the first fixing plate (31) and the second fixing plate (32).

8. The interlayer fireproof structure according to claim 7, characterized in that, In the horizontal direction, there are a plurality of first fixing plates (31), two adjacent first fixing plates (31) are pressed against each other at the vertical keel (5), and at least one of the first fixing plates (31) is provided with a clearance groove corresponding to the vertical keel (5) so as to be suitable for making way for the vertical keel (5); Along the horizontal direction, there are a plurality of second fixing plates (32), two adjacent second fixing plates (32) are pressed against the vertical keel (5), and at least one of the second fixing plates (32) is provided with the making way groove corresponding to the vertical keel (5) so as to make way for the vertical keel (5).

9. The interlayer fireproof structure according to claim 7, characterized in that, The vertical keel (5) is located on a side of the building exterior wall (2) facing the steel structure main body (1) and is fixedly connected to the building exterior wall (2). The vertical keel (5) is suitable for supporting and fixing the building exterior wall (2).

10. The interlayer fireproof structure according to claim 9, characterized in that, The interlayer fireproof structure further includes a transverse keel (6). One end of the transverse keel (6) is fixedly connected to the vertical keel (5), and the other end is fixedly connected to the steel structure main body (1). The transverse keel (6) abuts against the bottom of the fireproof structure (3) to be adapted to support the fireproof structure (3).

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