Fireproof composite floor

Abstract

The utility model relates to a fireproof composite floor, wherein a secondary keel is installed above the main keel through a square tube, a double-layer 12mm thick fiber-reinforced calcium silicate board is connected below the secondary keel through a steel bar hanger, a steel mesh is installed between the double-layer 12mm thick fiber-reinforced calcium silicate boards, and a mixture of chlorate cement and water glass is filled between the double-layer 12mm thick fiber-reinforced calcium silicate boards, and a pine wool floor and a tongue-and-groove wooden floor are installed in sequence above the secondary keel, and the original wooden floor system is adopted, which maximizes the preservation of the original characteristics and context of the historical style building and realizes the historical value of the building. At the same time, all components of the utility model are fireproofed, the fireproof filling material is filled layer by layer in the form of felt sheets, and the surrounding gaps are filled densely with loose fireproof materials, the fireproof filling material in the ceiling is paved on the ceiling board, the keel is filled densely, the fiber-reinforced calcium silicate board is installed with staggered joints, and the board joints are sealed with fireproof sealing paste.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof components, in particular to a fireproof composite floor slab. Background Art

[0002] Floor slab refers to a kind of prefabricated board processed and produced by the prefabrication yard, which is a module or plate used in construction. The ceiling is one of the indispensable elements in space design. It can not only cover the beams, but also hide the pipes and equipment on the ceiling, making the space look more layered and more beautiful. In engineering design, floor slabs and ceilings are important components of horizontal fire separation of buildings. In the event of a fire, hot smoke spreads upwards, and smoke poses a greater threat to the evacuation safety of people on the upper floors. Therefore, its fire prevention issues should be fully considered and appropriate fire prevention treatment should be carried out.

[0003] The overall fire resistance of a building is the fundamental guarantee to ensure that the building structure will not be damaged in the event of a fire, and the combustion performance and fire resistance limit of the building structural components are the basis of the overall fire resistance. The current national construction engineering fire protection technical standards have put forward relevant requirements for the combustion performance and fire resistance limit of building floors and ceilings with different fire resistance levels. For new buildings, the processes and materials include prestressed reinforced concrete floors, ready-fired integral beams and slabs, wooden ceiling joists and steel ceiling joists, etc. However, for the renovation of historical buildings, it is often difficult to construct all the materials and processes required by the current standards and specifications. Therefore, it is necessary to design a fire-proof composite floor that can retain the historical value of the building while preventing the fire from spreading vertically between building layers and achieving the goal of horizontal fire separation. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to propose a fireproof composite floor slab that can solve the problem that the reconstruction of historical buildings cannot be carried out completely in accordance with traditional standards and specifications, thereby achieving the objective requirement of protecting the cultural attributes of the building and controlling the spread of fire.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A fireproof composite floor comprises a main keel, a secondary keel, a mixture of chlorate cement and water glass, a wire mesh and a fiber reinforced calcium silicate board, wherein the secondary keel is installed above the main keel, a first fiber reinforced calcium silicate board is installed below the secondary keel, the wire mesh is covered above the first fiber reinforced calcium silicate board, and a second layer of fiber reinforced calcium silicate board is installed below the first layer of fiber reinforced calcium silicate board.

[0007] Furthermore, it also includes tongue and groove wood flooring and pine subflooring, wherein the pine subflooring is installed above the secondary keel, the subflooring is a sandwich panel for preventing moisture from rising due to capillary action, and the tongue and groove wood flooring is installed above the pine subflooring for decoration.

[0008] Moreover, the main keel adopts narrow flange H-shaped steel to increase the stability of the secondary keel, and the secondary keel is connected to the main keel through a square tube.

[0009] Moreover, the secondary keel is a wooden keel, and the wooden keel is arranged in a vertically crossed grid shape to support the tongue-and-groove wooden floor and pinewood wool floor above.

[0010] Moreover, the first fiber reinforced calcium silicate board is connected to the lower part of the secondary keel through a steel hanger, and the steel hanger is used to connect the wooden keel and the first fiber reinforced calcium silicate board, so that the overall force of the fireproof composite floor is more uniform, further enhancing the overall stability of the fireproof composite floor.

[0011] Moreover, a mixture of chlorate cement and water glass is used to fill the space between the first layer of fiber reinforced calcium silicate board and the second layer of fiber reinforced calcium silicate board. The mixture of chlorate cement and water glass is combined with the steel wire mesh to improve the strength and toughness, and increase the bearing capacity and stability.

[0012] Moreover, a mixture of chlorate cement and water glass is applied to the gaps of the floor slab to enhance the flame retardant effect of the fireproof composite floor slab.

[0013] Moreover, the rock wool is arranged above the mixture of chlorate cement and water glass to improve the vertical fireproof performance of the floor slab.

[0014] The advantages and positive effects of the utility model are:

[0015] The utility model has a secondary keel installed above the main keel through a square tube, and a double-layer 12mm thick fiber-reinforced calcium silicate board is connected below the secondary keel through a steel bar hanger, a steel mesh is installed between the double-layer 12mm thick fiber-reinforced calcium silicate boards, and a mixture of chlorate cement and water glass is filled between the double-layer 12mm thick fiber-reinforced calcium silicate boards, and pine wool flooring and tongue-and-groove wood flooring are installed in sequence above the secondary keel, and the original wood flooring system is adopted, which maximizes the preservation of the original characteristics and context of the historical style building and realizes the historical value of the building. At the same time, all components of the utility model are fireproofed, and the fireproof filling material is filled layer by layer in the form of felt sheets, and the surrounding gaps are filled densely with loose fireproof materials, and the fireproof filling material in the ceiling is paved on the ceiling board, and the keel is filled densely, and the fiber-reinforced calcium silicate board is installed with staggered joints, and the board joints are sealed with fireproof sealing paste. It is convenient for construction, and its fireproof ceiling panels can have a good flame retardant effect, thereby improving the overall fire resistance of the components, ensuring the safety of personnel evacuation, and limiting the vertical spread of fire, meeting the actual use needs in the renovation of historical buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the utility model;

[0017] Figure 2 It is the front view of the utility model.

[0018] Description of labels:

[0019] 1- tongue and groove wooden floor, 2- pine wood subfloor, 3- wooden keel (secondary keel), 4- square tube, 5- steel hanger, 6- rock wool, 7- first layer of chlorate cement and water glass mixture, 8- steel wire mesh, 9- first layer of fiber reinforced calcium silicate board, 10- second layer of chlorate cement and water glass mixture, 11- second layer of fiber reinforced calcium silicate board, 12- narrow flange H-shaped steel (main keel), 13- side fiber reinforced calcium silicate board. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings.

[0021] A fireproof composite floor comprises a main keel 12 (narrow flange H-shaped steel), a secondary keel 3 (wooden keel), a mixture of chlorate cement and water glass 7, a wire mesh 8 and a fiber reinforced calcium silicate board, wherein the secondary keel is installed above the main keel, the narrow flange H-shaped steel is arranged below the secondary keel, the wire mesh is covered above the first layer of fiber reinforced calcium silicate board 9, and the second layer of fiber reinforced calcium silicate board 11 is installed below the first layer of fiber reinforced calcium silicate board.

[0022] A fireproof composite floor also includes a tongue-and-groove wooden floor 1 and a pinewood subfloor 2, wherein the pinewood subfloor is installed above the secondary keel, the subfloor is a sandwich panel used to avoid moisture rising due to capillary action, and the tongue-and-groove wooden floor installed above the pinewood subfloor is generally an ordinary wooden floor, which is mainly used for decoration.

[0023] The main keel is the main load-bearing component of the fireproof composite floor. It adopts narrow flange H-shaped steel to increase the stability of the secondary keel. The secondary keel is connected to the main keel through a square tube 4.

[0024] The secondary keel is made of wooden keels, and the wooden keels are arranged in a vertical cross-grid shape to support the tongue-and-groove wooden floor and pinewood subfloor above.

[0025] The first layer of fiber-reinforced calcium silicate board is connected to the lower part of the secondary keel through a steel bar hanger 5, which is used to connect the wooden keel and the first layer of fiber-reinforced calcium silicate board, so that the overall force of the fireproof composite floor is more uniform, further enhancing the overall stability of the fireproof composite floor. A first layer of chlorate cement and water glass mixture is arranged above the wire mesh, and a double layer of rock wool is arranged on the upper part of the first layer of chlorate cement and water glass mixture and installed in a staggered collage manner. The use of rock wool and fiber-reinforced calcium silicate board further improves the overall fireproof performance of the floor.

[0026] A second layer of chlorate cement and water glass mixture 10 is used to fill between the first layer of fiber reinforced calcium silicate board and the second layer of fiber reinforced calcium silicate board. The chlorate cement and water glass mixture is combined with the steel wire mesh to improve the strength and toughness, and increase the bearing capacity and stability.

[0027] The outermost layer of the bottom of the fireproof composite floor is a mixture of chlorate cement and water glass, and the surrounding area is fiber-reinforced calcium silicate board. The chlorate cement and water glass mixture is applied to the board joints to further enhance the flame retardant effect of the fireproof composite floor.

[0028] The method of using the utility model is as follows: the combined floor slab is vertically connected by narrow flange H-shaped steel (main keel 1) and wooden keel (secondary keel 2), which meets the actual use requirements in the renovation of historical buildings, and at the same time improves the thermal insulation and fireproof performance of the floor slab, effectively solves the shortcomings of reinforced concrete floor slabs and traditional wooden floor slabs, and compared with traditional wooden floor slabs, enhances the overall structural strength of the component, effectively improves the fireproof performance and thermal insulation performance, and compared with reinforced concrete floor slabs, greatly reduces the dead weight and reduces the cost, and has the advantages of smooth and beautiful surface, convenient hanging, short construction period, convenient on-site operation, etc.

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A fireproof composite floor, characterized in that: It includes a main keel, a secondary keel, square tubes, a mixture of chlorate cement and water glass, a wire mesh and a fiber reinforced calcium silicate board, wherein the secondary keel is installed above the main keel, the first fiber reinforced calcium silicate board is installed below the secondary keel, the wire mesh is covered above the first fiber reinforced calcium silicate board, and the second layer of fiber reinforced calcium silicate board is installed below the first layer of fiber reinforced calcium silicate board.

2. A fireproof composite floor according to claim 1, characterized in that: It also includes tongue and groove wooden floors and pine subfloors, wherein the pine subfloors are installed above the secondary keels, the subfloors are sandwich panels used to avoid moisture rising due to capillary action, and the tongue and groove wooden floors are installed above the pine subfloors for decoration.

3. A fireproof composite floor according to claim 2, characterized in that: The main keel adopts narrow flange H-shaped steel to increase the stability of the secondary keel, and the secondary keel is connected with the main keel through a square tube.

4. A fireproof composite floor according to claim 3, characterized in that: The secondary keel is a wooden keel, and the wooden keel is arranged in a vertically crossed grid shape to support the tongue-and-groove wooden floor and pinewood wool floor above.

5. A fireproof composite floor according to claim 4, characterized in that: The first fiber reinforced calcium silicate board is connected to the lower part of the secondary keel through a steel bar hanger, and the steel bar hanger is used to connect the wooden keel and the first fiber reinforced calcium silicate board, so that the overall force of the fireproof composite floor is more uniform, and the overall stability of the fireproof composite floor is further enhanced.

6. A fireproof composite floor according to claim 5, characterized in that: The first layer of fiber reinforced calcium silicate board and the second layer of fiber reinforced calcium silicate board are filled with a mixture of chlorate cement and water glass. The mixture of chlorate cement and water glass is combined with the steel wire mesh to improve the strength and toughness, and increase the bearing capacity and stability.

7. A fireproof composite floor according to claim 6, characterized in that: A mixture of chlorate cement and water glass is applied to the gaps of the floor slab to enhance the flame retardant effect of the fireproof composite floor slab.

8. The fireproof composite floor according to claim 6, characterized in that: Rock wool is arranged above the chlorate cement and water glass mixture to improve the vertical fireproof performance of the floor slab.

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