Fireproof plugging structure for bridge penetrating through floor slab and construction method of fireproof plugging structure

Abstract

The invention discloses a bridge penetrating floor fireproof plugging structure which comprises a floor, a bridge, an L-shaped supporting plate, a lower fireproof plate, a fire retardant bag, a waterproof ridge, an upper fireproof plate, an opposite-pull screw and an opposite-pull nut, the L-shaped supporting plate is arranged between the bridge and the floor in a hole, and the vertical edge of the L-shaped supporting plate is attached to the inner wall of the hole and fixed to the waterproof ridge through the opposite-pull screw. The outer side of the waterproof ridge is provided with a base plate arranged on the opposite-pull screw in a sleeving mode, the transverse edge of the L-shaped supporting plate is located at the bottom of the vertical edge, the bottom of the L-shaped supporting plate is flush with the bottom of the floor slab, and the top of the transverse edge of the L-shaped supporting plate is provided with a lower fireproof plate. And the bottom of the lower fireproof plate is provided with a convex edge for reconstruction, and the convex edge and the lower fireproof plate are matched to form a flush structure of the bottom surface of the floor, the L-shaped supporting plate and the lower fireproof plate, so that the appearance of a building is ensured, the structural stability is higher, two purposes are achieved, and the using effect is better.

Description

Technical Field

[0001] The invention belongs to the field of electromechanical installation, and in particular relates to a fireproof blocking structure of a bridge penetrating a floor slab and a construction method thereof. Background Art

[0002] Fire blocking is to use fire blocking materials to seal the holes formed by cables passing through walls or floors. Its function is to prevent the fire from spreading to the area adjacent to the source of the fire, so as to protect the safety of personnel and equipment. The principle of fire blocking is that the blocking material expands to absorb heat and insulate. When it encounters fire, it expands to seal the gaps left by the burning of combustibles, and absorbs heat to reduce the temperature of the non-fire side of the penetrated object.

[0003] Fireproof sealing is required when the bridge passes through the floor. The current fireproof sealing method can refer to the patent with announcement number CN214784856U, which discloses a bridge fireproof sealing device, which is also the most common practice at present. A fireproof board is fixed to the bottom of the floor by rivets, and fireproof sealing materials are filled in the bridge on the fireproof board and between the bridge and the opening. A waterproof sill is set on the top of the floor, and a fireproof board covering the fireproof sealing material is set on the waterproof sill.

[0004] However, in practice, there are the following problems: the fireproof board at the bottom of the floor slab protrudes from the bottom of the floor slab, affecting the appearance of the building, and the installation structure strength of the fireproof board at the bottom of the floor slab is low, which is not conducive to use. Summary of the invention

[0005] The invention provides a fireproof blocking structure of a bridge penetrating a floor slab and a construction method thereof, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fireproof blocking structure of a bridge through a floor, comprising a floor, a bridge, an L-shaped support plate, a lower fireproof board, a fire-blocking bag, a waterproof sill, an upper fireproof board, a tension screw and a tension nut, wherein the floor has an opening corresponding to the bridge, the size of the opening is larger than the size of the bridge, the bridge is vertically penetrated in the opening of the floor, the top of the floor is cast with a waterproof sill, and pre-buried pipes are respectively arranged on the opposite sides of the waterproof sill, and tension screws are penetrated in the pre-buried pipes, and the bridge and the tension nut in the opening are respectively arranged on the opposite sides of the waterproof sill. An L-shaped support plate is arranged between the floor slabs, the vertical side of the L-shaped support plate is fitted with the inner wall of the opening and is fixed to the waterproof sill by tension screws, a pad sleeved on the tension screws is arranged on the outer side of the waterproof sill, the horizontal side of the L-shaped support plate is located at the bottom of the vertical side, the bottom of the L-shaped support plate is flush with the bottom of the floor slab, a lower fireproof board is arranged on the top of the horizontal side of the L-shaped support plate, the lower fireproof board is in the shape of a U-shaped board, a fire-blocking bag is arranged on the lower fireproof board, the top of the fire-blocking bag is flush with the top of the waterproof sill, and the upper fireproof board covers the waterproof sill and the fire-blocking bag.

[0007] As a further preferred embodiment of the present application, the bottom of the lower fireproof board has a boss extending between the two L-shaped support plates, the bottom of the boss is flush with the bottom surface of the floor, and the two ends of the boss are respectively adapted to the two L-shaped support plates.

[0008] As a further preferred solution of the present application, there is a 3-8mm spacing between the horizontal side of the L-shaped support plate and the bridge frame.

[0009] As a further preferred embodiment of the present application, fireproof mud is provided at the contact portion between the upper fireproof plate and the bridge frame.

[0010] As a further preferred embodiment of the present application, a protective cap is threadedly connected to the tension screw on the waterproof outer side, and the protective cap includes a cover shell and a threaded pipe fixed on the inner side of the cover shell, the threaded pipe is threadedly connected to the tension screw, and the cover shell is attached to the pad.

[0011] A construction method for a fireproof blocking structure of a bridge passing through a floor slab comprises the following steps: Step 1: pour the floor slab and reserve the opening; Step 2: pouring the waterproof sill and setting the embedded pipe in the waterproof sill; Step 3: Install the bridge frame in the hole; Step 4. Pass the tension screws through the embedded pipes, put an L-shaped support plate on the inside of the hole and pass the tension screws through the vertical side of the L-shaped support plate, put a pad on the tension screws on the outside of the waterproof sill, and then thread the tension nuts on the tension screws to fix them, and then place the lower fireproof board on the L-shaped support plate so that the boss of the lower fireproof board is embedded between the two L-shaped support plates, and then put the fire-blocking bag on the lower fireproof board. After the fire-blocking bag is placed flush with the top of the waterproof sill, place the upper fireproof board on the top of the waterproof sill and the fire-blocking bag, and finally seal the contact between the upper fireproof board and the bridge with fireproof mud.

[0012] The beneficial effects of the present invention are as follows: the present application adopts tension screws to fix the L-shaped support plate in the hole to install the lower fireproof board, and combines it with the convex rib modification on the bottom of the lower fireproof board. The two cooperate with each other to realize the bottom surface of the floor, the L-shaped support plate, and the lower fireproof board to form a flush structure. On the one hand, it ensures the appearance of the building, and on the other hand, the structure is more stable, killing two birds with one stone and having a better use effect.

[0013] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention may be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 Schematic diagram of the lower fireproof board of an embodiment of the present invention.

[0015] Figure numerals: 1. Floor; 2. Bridge; 3. L-shaped support plate; 4. Lower fireproof board; 5. Fire-blocking bag; 6. Waterproof sill; 7. Upper fireproof board; 8. Tension screw; 9. Tension nut; 10. Embedded pipe; 11. Pad; 12. Boss; 13. Fireproof mud. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be interpreted as limiting the technical solution of the present invention.

[0017] Combination Figure 1 and Figure 2 A fireproof blocking structure for a bridge through a floor slab comprises a floor slab 1, a bridge 2, an L-shaped support plate 3, a lower fireproof board 4, a fire-blocking bag 5, a waterproof sill 6, an upper fireproof board 7, a tension screw 8 and a tension nut 9. The floor slab 1 has an opening corresponding to the bridge 2, the size of the opening is larger than that of the bridge 2, the bridge 2 is vertically penetrated in the opening of the floor slab 1, the top of the floor slab 1 is cast with a waterproof sill 6, and the opposite sides of the waterproof sill 6 are respectively provided with embedded pipes 10, and the tension screws 8 are penetrated in the embedded pipes 10. L is provided between the bridge 2 and the floor slab 1 in the opening. shaped support plate 3, the vertical side of the L-shaped support plate 3 is in contact with the inner wall of the hole and is fixed to the waterproof sill 6 by the tension screw 8, the outer side of the waterproof sill 6 is provided with a pad 11 sleeved on the tension screw 8, the horizontal side of the L-shaped support plate 3 is located at the bottom of the vertical side, the bottom of the L-shaped support plate 3 is flush with the bottom of the floor 1, and the top of the horizontal side of the L-shaped support plate 3 is provided with a lower fireproof board 4, the lower fireproof board 4 is a U-shaped board, and a fireproof bag 5 is provided on the lower fireproof board 4. The top of the fireproof bag 5 is flush with the top of the waterproof sill 6, and the upper fireproof board 7 covers the waterproof sill 6 and the fireproof bag 5.

[0018] As a further preferred embodiment of the present application, the bottom of the lower fireproof board 4 has a boss 12 extending between the two L-shaped support plates 3, the bottom of the boss 12 is flush with the bottom surface of the floor 1, and the two ends of the boss 12 are respectively adapted to the two L-shaped support plates 3.

[0019] As a further preferred solution of the present application, there is a 3-8 mm spacing between the horizontal side of the L-shaped support plate 3 and the bridge frame 2 .

[0020] As a further preferred solution of the present application, fireproof mud 13 is provided at the contact position between the upper fireproof plate 7 and the bridge frame 2 .

[0021] As a further preferred solution of the present application, a protective cap is threadedly connected to the tension screw 8 on the waterproof outer side. The protective cap includes a cover shell and a threaded pipe fixed on the inner side of the cover shell. The threaded pipe is threadedly connected to the tension screw 8, and the cover shell is attached to the pad 11.

[0022] A construction method for a fireproof blocking structure of a bridge passing through a floor slab comprises the following steps: Step 1: pour the floor slab 1 and reserve the opening; Step 2: pouring the waterproof sill 6 and setting the embedded pipe 10 in the waterproof sill 6; Step 3: The bridge frame 2 is installed in the opening; Step 4, insert the tension screw 8 into the embedded pipe 10, put the L-shaped support plate 3 on the inside of the hole and pass the tension screw 8 through the vertical side of the L-shaped support plate 3, put the pad 11 on the tension screw 8 on the outside of the waterproof sill 6, and then thread the tension nut 9 on the tension screw 8 to fix it, and then place the lower fireproof board 4 on the L-shaped support plate 3, so that the boss 12 of the lower fireproof board 4 is embedded between the two L-shaped support plates 3, and then put the fire-blocking bag 5 on the lower fireproof board 4. After the fire-blocking bag 5 is placed flush with the top of the waterproof sill 6, place the upper fireproof board 7 on the top of the waterproof sill 6 and the fire-blocking bag 5, and finally use fire-proof mud 13 to seal the contact between the upper fireproof board 7 and the bridge frame 2.

[0023] The beneficial effects of the present invention are as follows: the present application adopts the tension screw 8 to fix the L-shaped support plate 3 in the hole, installs the lower fireproof board 4, and combines the convex rib modification on the bottom of the lower fireproof board 4. The two cooperate with each other to realize the bottom surface of the floor 1, the L-shaped support plate 3, and the lower fireproof board 4 to form a flush structure. On the one hand, it ensures the appearance of the building, and on the other hand, the structural stability is higher, killing two birds with one stone and having a better use effect.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that a technician familiar with the technical field can think of within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A fireproof blocking structure for a bridge passing through a floor, characterized in that: The invention comprises a floor (1), a bridge (2), an L-shaped support plate (3), a lower fireproof board (4), a fire-blocking bag (5), a waterproof sill (6), an upper fireproof board (7), a tension screw (8) and a tension nut (9); the floor (1) has a hole corresponding to the bridge (2); the size of the hole is larger than the size of the bridge (2); the bridge (2) is vertically penetrated in the hole of the floor (1); a waterproof sill (6) is cast at the top of the floor (1); two opposite sides of the waterproof sill (6) are respectively provided with embedded pipes (10); the tension screws (8) are penetrated in the embedded pipes (10); an L-shaped support plate (3) is provided between the bridge (2) and the floor (1) in the hole; ), the vertical side of the L-shaped support plate (3) is in contact with the inner wall of the hole and is fixed to the waterproof sill (6) by means of a tension screw (8), a pad (11) sleeved on the tension screw (8) is arranged on the outer side of the waterproof sill (6), the horizontal side of the L-shaped support plate (3) is located at the bottom of the vertical side, the bottom of the L-shaped support plate (3) is flush with the bottom of the floor slab (1), a lower fireproof board (4) is arranged on the top of the horizontal side of the L-shaped support plate (3), the lower fireproof board (4) is a U-shaped board, a fireproof bag (5) is arranged on the lower fireproof board (4), the top of the fireproof bag (5) is flush with the top of the waterproof sill (6), and an upper fireproof board (7) covers the waterproof sill (6) and the fireproof bag (5).

2. A fireproof blocking structure for a bridge passing through a floor slab according to claim 1, characterized in that: The bottom of the lower fireproof plate (4) has a boss (12) extending between the two L-shaped support plates (3), the bottom of the boss (12) is flush with the bottom surface of the floor slab (1), and the two ends of the boss (12) are respectively adapted to the two L-shaped support plates (3).

3. A fireproof blocking structure for a bridge passing through a floor slab according to claim 2, characterized in that: There is a 3-8 mm gap between the horizontal side of the L-shaped support plate (3) and the bridge frame (2).

4. A fireproof blocking structure for a bridge passing through a floor slab according to claim 3, characterized in that: Fireproof mud (13) is provided at the contact position between the upper fireproof plate (7) and the bridge frame (2).

5. A fireproof blocking structure for a bridge passing through a floor slab according to claim 4, characterized in that: A protective cap is threadedly connected to the tension screw (8) on the waterproof outer side. The protective cap comprises a cover shell and a threaded pipe fixed on the inner side of the cover shell. The threaded pipe is threadedly connected to the tension screw (8). The cover shell is attached to the pad (11).

6. A construction method for a fireproof blocking structure of a bridge through a floor according to any one of claims 1 to 5, characterized in that: The following steps are included: Step 1: pouring the floor slab (1) and reserving the opening; Step 2: pouring the waterproof sill (6) and arranging the embedded pipe (10) in the waterproof sill (6); Step 3: The bridge frame (2) is installed in the opening; Step 4: insert the tension screw (8) into the embedded pipe (10), put an L-shaped support plate (3) inside the hole and pass the tension screw (8) through the vertical side of the L-shaped support plate (3), put a pad (11) on the tension screw (8) on the outside of the waterproof sill (6), and then thread the tension nut (9) on the tension screw (8) to fix it, and then place the lower fireproof board (4) on the L-shaped support plate (3) so that the boss (12) of the lower fireproof board (4) is embedded between the two L-shaped support plates (3), and then put the fireproof bag (5) on the lower fireproof board (4). After the fireproof bag (5) is placed flush with the top of the waterproof sill (6), place the upper fireproof board (7) on the top of the waterproof sill (6) and the fireproof bag (5), and finally use fireproof mud (13) to seal the contact part between the upper fireproof board (7) and the bridge frame (2).

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