Prefabricated spliced protective roof and safety house

Abstract

This utility model discloses a prefabricated spliced ​​protective roof slab, including a top slab, a bottom slab, and side slabs. The top slab, bottom slab, and side slabs form a box-shaped main body for the protective slab. The box-shaped main body is filled with fireproof material, and prestressed steel cables are stretched inside the box-shaped main body. The prestressed steel cables are installed along the long side of the box-shaped main body and locked with nuts. Two sets of positioning plates are installed inside the box-shaped main body. The prestressed steel cables pass through the two sets of positioning plates and bend at the positioning plates. The shape of the prestressed steel cables is close to the curve formed by the bending moment generated after the top of the protective roof slab is subjected to a uniform vertical load. The outer sides of the two long side slabs of the box-shaped main body are respectively provided with positioning bosses and corresponding positioning grooves. This protective roof slab adopts a structural form that combines steel plates and prestressed steel cables to enhance the overall strength of the steel plates, and a protective material filling layer is formed inside the roof slab. While ensuring the strength of the roof slab, its fire resistance is improved, further enhancing the strength and fire resistance rating of the safe house.

Description

Technical Field

[0001] This utility model relates to the field of safe house technology, and in particular to a prefabricated splicing protective roof panel and a safe house. Background Technology

[0002] A safe house, also known as a shelter or refuge room, is a specially designed and constructed room or space. Its core objective is to provide a safe haven for people in various emergency and dangerous situations, while also protecting important items and assets. Unlike ordinary building spaces, safe houses have extremely high standards and requirements in terms of structure, materials, and functional configuration. Currently, the conventional structure of the roof of a safe house uses a single steel plate or several layers of steel plates stacked together, and its compressive strength and bending resistance need further improvement. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a prefabricated spliced ​​protective roof slab and a safe house. The protective roof slab adopts a structural form that combines steel plates with prestressed steel cables to enhance the overall strength of the steel plates. Furthermore, a protective material filling layer is formed inside the roof slab, which improves its fire resistance while ensuring the strength of the roof slab, thereby further improving the strength and fire resistance rating of the safe house.

[0004] A prefabricated spliced ​​protective roof slab includes a top slab, a bottom slab, and side slabs, which together form a box-shaped main body for the protective slab. The box-shaped main body is filled with fireproof material, and a prestressed steel cable is stretched within it. The prestressed steel cable runs along the long side of the box-shaped main body and is locked with a nut. Two sets of positioning plates are provided inside the box-shaped main body. The prestressed steel cable passes through the two sets of positioning plates and bends at the positioning plates. The shape of the prestressed steel cable is close to the curve formed by the bending moment generated after the top of the protective roof slab is subjected to a uniform vertical load. Positioning bosses and corresponding positioning grooves are respectively provided on the outer sides of the two long side slabs of the box-shaped main body.

[0005] As a preferred embodiment of the above technical solution, the positioning plate is a U-shaped plate, the open end of the U-shaped plate is welded to the bottom surface of the top plate, and a gap is formed between the bottom surface of the U-shaped plate and the bottom plate for the prestressed steel cable to pass through.

[0006] As a preferred embodiment of the above technical solution, the U-shaped plate is also filled with the fireproof material.

[0007] As a preferred embodiment of the above technical solution, the top plate is made of a lower layer of bulletproof steel plate and an upper layer of galvanized steel plate stacked together.

[0008] As a preferred embodiment of the above technical solution, multiple sets of reinforcing plates are arranged parallel to each other along the length direction inside the box-shaped main body.

[0009] As a preferred embodiment of the above technical solution, multiple sets of reinforcing plates evenly divide the box-shaped body into multiple load-bearing areas, and each load-bearing area is provided with a prestressed steel cable.

[0010] As a preferred embodiment of the above technical solution, the base plate, side plate, positioning plate and reinforcing plate are all made of single-layer galvanized steel sheet.

[0011] A safe house, wherein the roof of the safe house is assembled from prefabricated spliced ​​protective roof panels as described in any one of the above.

[0012] The beneficial effects of this utility model are as follows:

[0013] The protective roof slab uses a structure combining steel plates and prestressed steel cables to enhance the overall strength of the steel plates. Furthermore, a protective material filling layer is formed inside the roof slab, which improves its fire resistance while ensuring the strength of the roof slab, thereby further enhancing the strength and fire resistance rating of the safe house. Attached Figure Description

[0014] Figure 1 This is a longitudinal sectional view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 This is a side view of the present invention.

[0017] The attached diagram is labeled as follows: 1-Top plate, 101-Lower bulletproof steel plate, 102-Upper galvanized steel plate, 2-Bottom plate, 3-Side plate, 4-Fireproof material, 5-Prestressed steel cable, 6-Nut, 7-Positioning plate, 8-Positioning boss, 9-Positioning groove, 10-Through gap, 11-Reinforcing plate, 12-Locking bolt. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] like Figures 1 to 3The diagram shows a prefabricated spliced ​​protective roof slab, comprising a top slab 1, a bottom slab 2, and side slabs 3. The top slab 1, bottom slab 2, and side slabs 3 form a box-shaped main body for the protective slab. The box-shaped main body is filled with fireproof material 4. A prestressed steel cable 5 is stretched inside the box-shaped main body. The prestressed steel cable 5 passes through the two sets of positioning plates 7 and bends at the positioning plates 7. The shape of the prestressed steel cable 5 is close to the curve formed by the bending moment generated after the top of the protective roof slab is subjected to a uniform vertical load. The outer sides of the two long side slabs 3 of the box-shaped main body are respectively provided with positioning bosses 8 and corresponding positioning grooves 9.

[0020] In this embodiment, the positioning plate 7 is a U-shaped plate, and the open end of the U-shaped plate is welded to the bottom surface of the top plate 1. The bottom surface of the U-shaped plate and the bottom plate 2 form a through gap 10 for the prestressed steel cable 5.

[0021] In this embodiment, the U-shaped plate is also filled with the fireproof material 4.

[0022] In this embodiment, the top plate 1 is composed of a lower bulletproof steel plate 101 and an upper galvanized steel plate 102 stacked together.

[0023] In this embodiment, multiple sets of reinforcing plates 11 are arranged parallel to each other along the length direction inside the box-shaped main body.

[0024] In this embodiment, multiple sets of reinforcing plates 11 evenly divide the box-shaped body into multiple load-bearing areas, and each load-bearing area is provided with a prestressed steel cable 5.

[0025] In this embodiment, the base plate 2, side plate 3, positioning plate 7 and reinforcing plate 11 are all made of single-layer galvanized steel sheet.

[0026] Specifically,

[0027] The prestressed steel cable 5 is used as the core component of the protective roof slab, which can significantly improve the strength and rigidity of the protective roof slab. Furthermore, the shape of the prestressed steel cable 5 is basically consistent with the curve direction formed by the bending moment generated after the top of the protective roof slab is subjected to load, which can maximize its performance and improve the load-bearing capacity of the protective roof slab.

[0028] The positioning plate 7 is used to position the prestressed steel cable 5, which can precisely limit the prestressed steel cable 5 between the positioning plate 7 and the base plate 2, ensuring the forming state of the prestressed steel cable 5.

[0029] Fireproof material 4 is used to improve the fire resistance of the protective roof and the overall safety of the safe house, specifically using perlite fireproof board.

[0030] A safe house, wherein the roof of the safe house is assembled from prefabricated spliced ​​protective roof panels as described in any one of the above.

[0031] Specifically, in order to improve the stability of the splicing of two adjacent protective roof panels, locking bolts can be installed between the two adjacent protective roof panels.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated spliced ​​protective roof slab, characterized in that: The device includes a top plate, a bottom plate, and side plates, which together form a box-shaped main body for the protective panel. The box-shaped main body is filled with fireproof material, and a prestressed steel cable is stretched within it. The prestressed steel cable runs along the long side of the box-shaped main body and is locked with a nut. Two sets of positioning plates are provided inside the box-shaped main body. The prestressed steel cable passes through the two sets of positioning plates and bends at the positioning plates. The shape of the prestressed steel cable is close to the curve formed by the bending moment generated after the top of the protective top plate bears a uniform vertical load. The outer sides of the two long side plates of the box-shaped main body are respectively provided with positioning bosses and corresponding positioning grooves.

2. The prefabricated spliced ​​protective roof slab according to claim 1, characterized in that: The positioning plate is a U-shaped plate, and the open end of the U-shaped plate is welded to the bottom surface of the top plate. The bottom surface of the U-shaped plate and the bottom plate form a gap for the prestressed steel cable to pass through.

3. The prefabricated spliced ​​protective roof slab according to claim 2, characterized in that: The U-shaped plate is also filled with the fireproof material.

4. The prefabricated spliced ​​protective roof slab according to claim 1, characterized in that: The top plate is made of a lower layer of bulletproof steel plate and an upper layer of galvanized steel plate.

5. A prefabricated spliced ​​protective roof slab according to claim 1, characterized in that: The box-shaped main body has multiple sets of reinforcing plates arranged parallel to each other along its length.

6. A prefabricated spliced ​​protective roof slab according to claim 5, characterized in that: Multiple sets of reinforcing plates evenly divide the box-shaped body into multiple load-bearing areas, and each load-bearing area is provided with a prestressed steel cable.

7. A prefabricated spliced ​​protective roof slab according to claim 6, characterized in that: The base plate, side plates, positioning plates, and reinforcing plates are all made of single-layer galvanized steel sheets.

8. A safe house, characterized in that: The roof of the safe house is constructed by splicing together prefabricated protective roof panels as described in any one of claims 1-7.

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