A composite floor

Abstract

The present application relates to a kind of combined floor, including floor beam layer and the floor panel supported on the floor beam layer, the bottom of each floor beam body of the floor beam layer respectively extends to form lower flange plate to both sides, each beam space of the floor beam layer is filled with fireproof plate, wherein the edge of the fireproof plate is rested on the corresponding lower flange plate.The combined floor provided by the present application sets lower flange plate at the bottom of floor beam body and rests fireproof plate on lower flange plate, so it is convenient to install fireproof plate, can improve construction efficiency, reduce construction cost, and this installation mode can guarantee the installation reliability of fireproof plate, significantly superior to traditional hoisting fireproof plate, and fireproof plate will not fall off and other conditions.The beam space of the floor beam layer is filled with fireproof plate, and the floor beam layer and fireproof plate can act as formwork, so floor panel can be directly poured, and construction efficiency can be correspondingly improved and construction cost can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and specifically relates to a composite floor slab. Background Technology

[0002] In large-scale building construction, floor slabs are typically supported by floor beams. Many construction projects require fire-resistant boards to be installed beneath the floor slabs, primarily for fire prevention and flame retardancy. Currently, fire-resistant boards are generally installed via suspended ceilings. This method has relatively low construction efficiency and high costs, and is prone to detachment later on. Furthermore, during cast-in-place floor slab construction, profiled steel sheets are required as formwork, resulting in numerous formwork erection and demolding operations, leading to low construction efficiency and high costs. Summary of the Invention

[0003] This invention relates to a composite floor slab, which at least solves some of the defects of the prior art.

[0004] This invention relates to a composite floor slab, comprising a floor beam layer and a floor panel supported on the floor beam layer. The bottom of each floor beam of the floor beam layer extends to both sides to form a lower flange plate. The gaps between the beams of the floor beam layer are filled with fireproof boards, wherein the edges of the fireproof boards rest on the corresponding lower flange plates.

[0005] As one implementation method, the floor beam layer is a two-way beam structure with a grid pattern.

[0006] As one implementation method, the floor beam layer includes multiple node components and multiple beam segment components, both of which are prefabricated components; adjacent node components are connected by a beam segment component, wherein the beam segment component and the corresponding node component are bolted together.

[0007] As one embodiment, the beam segment component includes two beam segment plates, and the node component includes a cross-shaped node plate. Each side plate of the node plate is clamped by the two beam segment plates of the corresponding beam segment component and bolted together.

[0008] As one embodiment, the beam segment component includes a beam segment plate, and the node component includes a cross-shaped node plate. Each side plate of the node plate abuts against the end of the beam segment plate of the corresponding beam segment component, and two transition plates are provided at the joint. The two transition plates clamp the corresponding side plate and the beam segment plate and are bolted to the side plate and the beam segment plate respectively.

[0009] As one embodiment, the node component further includes a cross-shaped base plate, and the lower flange plate extends from the bottom of the beam segment plate accordingly, with the cross-shaped base plate and the corresponding lower flange plate being joined together.

[0010] As one implementation method, the top of each floor beam of the floor beam layer extends to both sides to form an upper flange plate, so that an embedding groove is formed on both sides of the floor beam, and the edge of the fireproof board is embedded in the corresponding embedding groove.

[0011] As one implementation method, the floor slab is a cast-in-place concrete slab.

[0012] As one embodiment, at least a portion of the floor beam is provided with shear studs, which protrude above the floor beam and are encased and solidified by the concrete of the floor slab.

[0013] As one implementation method, the top of the floor beam is higher than the top surface of the fireproof board.

[0014] The present invention has at least the following beneficial effects: The composite floor slab provided by the present invention has a lower flange plate set at the bottom of the floor slab beam and a fireproof board placed on the lower flange plate. Therefore, it facilitates the installation of the fireproof board, improves construction efficiency, reduces construction costs, and ensures the reliability of the fireproof board installation, which is significantly better than the traditional hoisting method for fireproof boards, and will not result in the fireproof board falling off. The gaps between the beams of the floor slab beam layer are filled by the fireproof board. The floor slab beam layer and the fireproof board can act as a formwork, so the floor slab can be directly poured, which can also improve construction efficiency and reduce construction costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a node of a two-way beam structure provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of some of the structures in the diagram;

[0018] Figure 3 This is a schematic diagram of a node of another bidirectional beam structure provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of some of the structures in the diagram;

[0020] Figure 5 and Figure 6This is a structural schematic diagram of a split-joint beam segment component provided in an embodiment of the present invention;

[0021] Figure 7 A schematic diagram illustrating the connection between a beam segment member with an upper flange and a node member with a top plate, provided in an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram illustrating the fit between a floor slab beam layer (without an upper flange) and a fireproof board, provided in an embodiment of the present invention.

[0023] Figure 9 In order to be in Figure 8 A schematic diagram showing the floor slab after it has been poured on the foundation.

[0024] Figure 10 This is a schematic diagram illustrating the fit between a floor slab beam layer (with an upper flange) and a fireproof board, provided in an embodiment of the present invention.

[0025] Figure 11 In order to be in Figure 10 A schematic diagram showing the floor slab after it has been poured on the foundation.

[0026] Figure 12 This is a schematic diagram illustrating the fit between the floor beam layer and the beam support provided in an embodiment of the present invention;

[0027] Figure 13 Fireproof boards were used to fill the gaps. Figure 12 A schematic diagram showing the space between beams in the diagram;

[0028] Figure 14 exist Figure 13 A schematic diagram after the floor slab has been poured on the foundation. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 8-14 This invention provides a composite floor slab, including a floor beam layer 100 and a floor panel 300 supported on the floor beam layer 100. The bottom of each floor beam of the floor beam layer 100 extends to both sides to form a lower flange plate 12. The gaps between the beams of the floor beam layer 100 are filled with fireproof boards 200, wherein the edges of the fireproof boards 200 rest on the corresponding lower flange plates 12.

[0031] The aforementioned floor beams can be steel beams, reinforced concrete beams, or other materials suitable for making floor beams, such as high-strength composite materials.

[0032] The aforementioned floor beam layer 100 is preferably made of prefabricated structure, which facilitates improved construction efficiency, reduced construction costs, and reduced on-site wet work.

[0033] In one embodiment, such as Figures 1-4 , Figure 7 as well as Figure 12 The floor beam layer 100 is a grid-like two-way beam structure. All the floor beams in the entire beam layer can work together to bear the load. Each part of the structure can share the load pressure for any local load, avoiding accidents caused by local overload.

[0034] Further optimization of the above-mentioned two-way beam structure, such as... Figures 1-4 , Figure 7 as well as Figure 12 For the scheme that adopts a prefabricated structure, the floor beam layer 100 includes multiple node components 2 and multiple beam segment components 1. Both the node components 2 and the beam segment components 1 are prefabricated components. Two adjacent node components 2 are connected by a beam segment component 1. The beam segment component 1 and the corresponding node component 2 are bolted together.

[0035] In this configuration, based on the grid-like form of the two-way beam structure, one node member 2 needs to be connected to four beam segment members 1. Therefore, preferably, the node member 2 includes a cross-shaped node plate 21. The cross-shaped node plate 21 includes four side plates 211, which are used to connect to the four beam segment members 1 respectively.

[0036] In one embodiment, such as Figure 3 and Figure 4The beam segment component 1 includes two beam segment plates 11, and the node component 2 includes a cross-shaped node plate 21. Each side plate 211 of the node plate 21 is clamped by the two beam segment plates 11 of the corresponding beam segment component 1 and bolted together. A flange plate extends from the bottom of each of the two beam segment plates 11. This flange plate is preferably integrally formed with the corresponding beam segment plate 11, for example, using angle steel to form a beam segment plate 11 and a corresponding flange plate, thus the beam segment component 1 includes two angle steels. Bolt through holes are formed at both ends of the beam segment plate 11. Assembly bolts 3 pass sequentially through the bolt through holes of one beam segment plate 11, the side plate 211, and the other beam segment plate 11, and are then locked by assembly nuts. Preferably, each end of the beam segment plate 11 has multiple bolt through holes, meaning each side plate 211 is assembled and connected to the corresponding two beam segment plates 11 by multiple bolts, which improves the reliability and stability of the connection structure. In addition to the connection at the ends via assembly bolts 3, the two beam segments 11 of beam segment component 1 can also be further connected in the middle, for example, by welding the middle of the two beam segments 11 (a welding adapter can be added).

[0037] In another embodiment, such as Figure 1 and Figure 2 The beam segment component 1 includes a beam segment plate 11, and the node component 2 includes a cross-shaped node plate 21. Each side plate 211 of the node plate 21 abuts against the end of the beam segment plate 11 of the corresponding beam segment component 1, and two transition plates 4 are provided at the joint. The two transition plates 4 clamp the corresponding side plate 211 and the beam segment plate 11 and are bolted to the side plate 211 and the beam segment plate 11 respectively. A flange plate extends from the bottom of the beam segment plate 11 to both sides. Preferably, the two flange plates are integrally formed with the beam segment plate 11, for example, using an inverted T-shaped component to form a beam segment plate 11 and two flange plates. Bolt through holes are formed at both ends of the adapter plate 4 (located on both sides of the joint). The assembly bolt 3 passes through the bolt through holes of one adapter plate 4, the bolt through holes on the beam segment plate 11 / side plate 211, and the bolt through holes on the other adapter plate 4 in sequence, and is then locked by the assembly nut. Each end of the adapter plate 4 is preferably provided with multiple bolt through holes, which can improve the reliability and stability of the connection structure.

[0038] Furthermore, such as Figures 1-4 The node component 2 also includes a cross-shaped base plate 22, and the lower flange plate 12 extends from the bottom of the beam segment plate 11. The cross-shaped base plate 22 and the corresponding lower flange plate 12 are spliced ​​together to more reliably support the fireproof board 200. Moreover, when the floor slab 300 is constructed by cast-in-place construction, the floor beam layer 100 and the fireproof board 200 can act as formwork, and the above structure can correspondingly improve the tightness and reliability of the formwork.

[0039] In the above scheme, the beam segment plate 11 of beam segment member 1 is preferably a one-piece molded plate; however, when the span of beam segment member 1 is large (i.e., the distance between two adjacent node members 2 is large), beam segment member 1 can also be assembled from separate components. See Figure 5 and Figure 6 Preferably, the beam segment member 1 includes two segment members 14 and a transition member 15, with the two segment members 14 connected by the transition member 15; in one embodiment, such as Figure 6 The transition member 15 includes a transition plate, and the segment member 14 includes two segment plates. Each end of the transition plate is clamped by the two segment plates of the corresponding segment member 14 and bolted together. The specific bolt assembly method can refer to the bolt assembly method of the first type of beam segment member 1 and node member 2 described above; in another embodiment, such as... Figure 5 The transition member 15 includes a transition plate, and the segmental member 14 includes a segmental plate. Each end of the transition plate abuts against the end of the corresponding segmental plate, and two transition plates are provided at the joint. The two transition plates clamp the corresponding transition plate and segmental plate and are bolted to the transition plate and segmental plate respectively. The specific bolt assembly method can refer to the bolt assembly method of the second type of beam segment member 1 and node member 2 mentioned above. In this scheme, relatively short segmental members 14 can be used for standardized prefabrication. By splicing different numbers of segmental members 14 to form beam segment members 1 of the required length, the types of prefabricated components can be reduced, further reducing construction costs.

[0040] In other alternative embodiments, the aforementioned floor beam layer 100 is a one-way beam structure, meaning that each floor beam is a one-way beam. For prefabricated one-way beams, they can be formed using the structural form of the aforementioned beam segment member 1, for example, by splicing together multiple prefabricated segment members 14.

[0041] As an optional solution, such as Figure 7 and Figure 10 Each floor beam in the floor beam layer 100 has an upper flange plate 16 extending to both sides from its top, forming an insert groove on each side of the floor beam. The edge of the fireproof board 200 is embedded in the corresponding insert groove. This structure not only effectively improves the structural strength, stiffness, and load-bearing performance of the floor beam, ensuring reliable support for the floor surface, but also effectively enhances the restraint effect on the fireproof board 200. Specifically, in the case where the floor beam layer 100 includes multiple node members 2 and multiple beam segment members 1, an upper flange plate 16 is formed on the top of the beam segment member 1, and a cross-shaped top plate 23 can be correspondingly formed on the top of the node member 2. For the case where the beam segment member 1 includes two beam segment plates 11, preferably, the beam segment member 1 can be composed of two C-shaped steel sections; for the case where the beam segment member 1 includes one beam segment plate 11, preferably, the beam segment member 1 can be composed of H-shaped steel sections.

[0042] In one embodiment, the fireproof board 200 is preferably a precast board.

[0043] In addition, such as Figures 12-14 The aforementioned floor beam layer 100 also includes a beam support 101, which may be ring-shaped, with the ends of the floor beams around the perimeter of the floor beam layer 100 resting on the beam support 101.

[0044] Preferably, the floor slab 300 is a cast-in-place concrete slab. The floor slab 300 is cast-in-place after the floor beam layer 100 and fireproof board 200 are constructed. The floor beam layer 100 and fireproof board 200 can act as formwork, facilitating the cast-in-place construction and improving the structural integrity of the floor beam layer 100 and floor slab 300. The forces acting on the floor slab 300 can be better transferred to the floor beam layer 100.

[0045] In one embodiment, such as Figures 1-10 In the floor beam layer 100, at least a portion of the floor beam is provided with shear studs 13. The shear studs 13 protrude above the floor beam and are encased and fixed by the concrete of the floor slab 300. Based on this structure, the bonding between the floor beam layer 100 and the floor slab 300 and the load-bearing performance of the composite floor can be further improved. Preferably, the shear studs 13 are L-shaped, with their vertical section connected to the floor beam and their horizontal section connected to the top of the vertical section. This increases the length of the shear studs 13 while preventing them from piercing the floor slab 300.

[0046] Among them, such as Figures 1-4 In the case where the upper flange plate 16 is not provided, the shear studs 13 can be connected to the side of the beam segment member 1, for example, to the surface of the beam segment plate 11; such as Figure 7 and Figure 10 In the case where an upper flange plate 16 is provided, the shear stud 13 can be connected to the upper flange plate 16.

[0047] Preferably, such as Figure 8 , Figure 10 and Figure 13 The top of the floor beam is higher than the top surface of the fireproof board 200. The top of the floor beam can be fixed by the concrete of the floor slab 300. On the one hand, this can further improve the bonding between the floor beam layer 100 and the floor slab 300. On the other hand, it ensures that the floor slab 300 is directly supported on the floor beam. The load of the floor slab 300 is mainly borne by the floor beam layer 100, and the fireproof board 200 is not under pressure.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite floor panel comprising a floor beam layer and a floor panel supported on the floor beam layer, characterised in that: The bottom of each floor beam body of the floor beam layer extends to both sides to form a lower flange plate, and the inter-beam space of the floor beam layer is filled with a fireproof plate, wherein the edge of the fireproof plate is placed on the corresponding lower flange plate. The floor beam layer is a two-way beam structure in a grid shape. The floor beam layer comprises a plurality of node members and a plurality of beam segment members, and the node members and the beam segment members are all prefabricated members; two adjacent node members are connected by a beam segment member, wherein the beam segment member is bolted with the corresponding node member. The beam segment member comprises two beam segment plates, the node member comprises a cross-shaped node plate, and each edge plate of the cross-shaped node plate is clamped by the two beam segment plates of the corresponding beam segment member and bolted therewith; or the beam segment member comprises one beam segment plate, the node member comprises a cross-shaped node plate, and each edge plate of the cross-shaped node plate abuts against the end of the beam segment plate of the corresponding beam segment member and is provided with two adapter plates at the joint, the two adapter plates clamping the corresponding edge plate and the beam segment plate and being bolted with the edge plate and the beam segment plate, respectively. The node member further comprises a cross-shaped bottom plate, and the lower flange plate is extended from the bottom of the beam segment plate, and the cross-shaped bottom plate is spliced with the corresponding lower flange plate. The top of each floor beam body of the floor beam layer extends to both sides to form an upper flange plate, so that an embedded groove is formed on both sides of the floor beam body, and the edge of the fireproof plate is embedded in the corresponding embedded groove. The floor beam layer further comprises a beam support, and the beam support is annular, and the end of the floor beam body at the periphery of the floor beam layer is placed on the beam support.

2. The composite floor panel of claim 1, wherein: The floor panel is a cast-in-place concrete panel.

3. The composite floor panel of claim 2, wherein: At least part of the floor beam bodies in the floor beam layer are provided with shear bolts, and the shear bolts protrude above the floor beam bodies and are covered and consolidated by the concrete of the floor panel.

4. The composite floor panel of claim 2, wherein: The top end of the floor beam body is higher than the top surface of the fireproof plate.

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