Prefabricated floor slab connecting structure and prefabricated assembly building composite component

Abstract

Provided in the present utility model are a prefabricated floor slab connecting structure and a prefabricated assembly building composite component. The prefabricated floor slab connecting structure comprises: a reinforcing mesh, wherein the reinforcing mesh is connected inside a floor slab, and two adjacent floor slabs are connected to each other by means of the reinforcing mesh; and a steel beam, wherein the steel beam supports the floor slabs, and is connected to a slab body of a floor slab and / or is connected between the two adjacent floor slabs. According to the prefabricated floor slab connecting structure and the prefabricated assembly building composite component of the present utility model, stable connection of prefabricated floor slabs is achieved by means of a cooperative structure between the reinforcing mesh and the steel beam, without requiring large-area secondary pouring , and fixing studs are quickly welded to the upper side of the prefabricated floor slab only by means of a stud welding machine, thereby greatly reducing the amount of grout to be poured and improving construction efficiency. Compared with conventional floor slab connecting technology at the present stage, the present application has the advantages of easy use, high connection stability, a wide range of application, etc.

Description

Prefabricated floor connecting structure and prefabricated assembly building combined component TECHNICAL FIELD

[0001] The utility model relates to prefabricated building technical field, specifically point to a prefabricated floor connecting structure and prefabricated assembly building combined component. BACKGROUND

[0002] In the current prefabricated building field, the construction process of floor has the vital influence on the building quality and efficiency. Among them, the composite floor becomes the commonly used floor type in prefabricated building owing to its many advantages. The composite floor is laid in the construction site, and compared with the traditional site pouring floor, this mode greatly improves the construction efficiency and shortens the construction period.

[0003] However, the joint treatment between the upper plates in the actual application process of the composite floor faces a series of severe challenges. At present, the method of supporting the formwork is generally adopted in the industry, and then the joint is blocked by pouring twice to prevent the leakage of concrete during pouring. But this conventional method has significant drawbacks: on the one hand, a large amount of concrete is needed for the secondary pouring and blocking, especially in large-area construction, which not only increases the material cost, but also leads to a complicated construction process. On the other hand, due to the large amount and area of the filled concrete, cracking is likely to occur subsequently. Once the cracks occur, not only the appearance of the floor is affected, but also the structural stability and waterproof performance of the floor are seriously threatened. In addition, the cracked floor needs additional repair work, further increasing the construction cost and time cost. At the same time, the surface flatness after secondary pouring often cannot meet the building use requirements, and later leveling treatment has to be carried out. The leveling process needs to invest a lot of manpower and material resources, and the leveling effect is greatly affected by the technical level of the construction personnel. If the leveling is improper, it may also affect the subsequent decoration process. SUMMARY

[0004] Therefore, the utility model wants to solve the technical problem in prior art that the floor assembly process is complicated and the yield is not high, and provides a prefabricated floor connecting structure and prefabricated assembly building combined component.

[0005] To solve the above technical problems, the utility model provides a prefabricated floor connecting structure, which comprises: a steel mesh, the steel mesh is connected to the inside of the floor, and two adjacent floors are connected by the steel mesh; a steel beam, the steel beam supports the floor and is connected to the plate body of the floor and / or between two adjacent floors.

[0006] In an embodiment of the utility model, the floor is provided with a bolt hole in the inside, the bolt hole is provided with a fixing piece, and the floor is connected with the steel beam through the fixing piece.

[0007] In an embodiment of the utility model, the fixed part is connecting bolt, the inside of the bolt hole is filled with slurry.

[0008] In an embodiment of the utility model, the reinforcement mesh is arranged in the interior of the floor slab, and at least one end of the reinforcement mesh is arranged as an extending end, and the extending end extends from the interior of the floor slab.

[0009] In an embodiment of the utility model, the reinforcement mesh comprises a plurality of extending ends, and the plurality of extending ends are uniformly spaced along the extension direction of the connecting gap of adjacent floor slabs.

[0010] In an embodiment of the utility model, the plurality of extending ends in adjacent floor slabs are staggered, and an overlapping area is formed in the arrangement direction thereof, and the prefabricated floor slab connecting structure further comprises at least one penetrating reinforcement, and the penetrating reinforcement sequentially penetrates the overlapping areas of a plurality of adjacent extending ends to connect two adjacent floor slabs.

[0011] In an embodiment of the utility model, the prefabricated floor slab connecting structure comprises a plurality of penetrating reinforcements, and at least part of the penetrating reinforcements are arranged at intervals along the arrangement direction of the floor slab to adjust the interval distance between adjacent floor slabs.

[0012] In an embodiment of the utility model, the prefabricated floor slab connecting structure further comprises a leveling bolt, the leveling bolt is arranged between two adjacent floor slabs, is connected to the steel beam, and extends along the thickness direction of the floor slab, and the filling slurry is arranged between the two adjacent floor slabs.

[0013] In an embodiment of the utility model, the edge of the floor slab is provided with a groove, the groove is arranged inwardly recessed by the side wall of the floor slab, and the reinforcement mesh extends from the groove.

[0014] In an embodiment of the utility model, the reinforcement mesh comprises a plurality of reinforcement units, and the plurality of reinforcement units are connected in a mesh shape.

[0015] The utility model further provides a prefabricated assembly building combined component which comprises the prefabricated floor slab connecting structure and the floor slab, and two adjacent floor slabs are connected through the prefabricated floor slab connecting structure.

[0016] In an embodiment of the utility model, the prefabricated assembly building combined component further comprises a steel column, the floor slab is provided with a notched corner, the steel column is connected to the floor slab and is arranged in the notched corner.

[0017] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0018] The prefabricated floor connecting structure and the prefabricated assembly building combined component realize stable connection of the prefabricated floor through the matching structure between the steel mesh and the steel beam, do not need secondary large-area pouring, and only need to quickly weld the fixing pegs on the upper side of the prefabricated floor through a peg welding machine, so that the pouring slurry is greatly saved, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to the specific embodiment of the utility model and in combination with the drawings.

[0020] Fig. 1 is a schematic diagram of part of the prefabricated floor connecting structure in the preferred embodiment of the utility model;

[0021] Fig. 2 is a schematic diagram of another part of the prefabricated floor connecting structure in the preferred embodiment of the utility model;

[0022] Fig. 3 is a schematic diagram of the internal structure of the prefabricated floor connecting structure shown in Fig. 2;

[0023] Fig. 4 is a schematic diagram of the internal structure of part of the prefabricated floor connecting structure shown in Fig. 2;

[0024] Fig. 5 is a schematic diagram of the connecting structure of the steel mesh and the floor in the prefabricated floor connecting structure shown in Fig. 2;

[0025] Fig. 6 is a schematic diagram of part of the prefabricated floor connecting structure in another embodiment of the utility model;

[0026] Fig. 7 is a schematic diagram of part of the prefabricated floor connecting structure shown in Fig. 6;

[0027] Fig. 8 is a schematic diagram of part of the prefabricated floor connecting structure in a third embodiment of the utility model;

[0028] Fig. 9 is a schematic diagram of the internal structure of Fig. 8;

[0029] Fig. 10 is a schematic diagram of one kind of structure of the prefabricated assembly building combined component in a fourth embodiment of the utility model;

[0030] Fig. 11 is a schematic diagram of the internal structure of Fig. 10;

[0031] Fig. 12 is a schematic diagram of another kind of structure of the prefabricated assembly building combined component shown in Fig. 10;

[0032] Fig. 13 is a schematic diagram of a third kind of structure of the prefabricated assembly building combined component shown in Fig. 10;

[0033] Fig. 14 is a schematic view of the connection structure of the steel beam and the steel column in the prefabricated assembly building composite component shown in Fig. 10;

[0034] Fig. 15 is another schematic view of the connection structure of the steel beam and the steel column in the prefabricated assembly building composite component shown in Fig. 10;

[0035] Fig. 16 is a schematic view of the floor laying structure in the prefabricated assembly building composite component shown in Fig. 10;

[0036] Fig. 17 is another schematic view of the floor laying structure in the prefabricated assembly building composite component shown in Fig. 10.

[0037] The description of the reference signs in the drawings is as follows: 1, floor; 11, dowel hole; 12, groove; 2, steel beam; 3, fixing member; 4, steel mesh; 41, extended end; 5, inserted steel bar; 6, leveling dowel; 7, grout; 8, steel column. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it. However, the embodiments are not intended to limit the present application. EMBODIMENT

[0039] The embodiment provides a prefabricated floor connecting structure, which mainly comprises a steel mesh 4 and a steel beam 2. The steel mesh 4 is connected to the inside of the floor 1, and two adjacent floors 1 are connected by means of the steel mesh 4; the steel beam 2 serves to support the floor 1, and can be connected to the plate body of the floor 1 or connected between two adjacent floors 1.

[0040] Referring to Fig. 1, the floor 1 in the embodiment is internally provided with a plurality of dowel holes 11. The fixing member 3 is connected to the steel beam 2 by penetrating the dowel hole 11, and the dowel hole 11 is filled with grout 7. Specifically, the steel beam 2 adopts an I-shaped steel beam 2 structure, the steel beam 2 is overlapped with the steel column 8 to form one or more layers of steel frame structure, and the prefabricated floor 1 is sequentially overlapped on the steel beam 2. The dowel hole 11 is prefabricated at the overlapping edge of the prefabricated floor 1 and the steel beam 2, and a plurality of dowel holes 11 are sequentially arranged along the longitudinal direction of the steel beam 2. The steel beam 2 is located directly below the dowel hole 11, the inner diameter of the dowel hole 11 is greater than the diameter of the fixing member 3, and the height of the dowel hole 11 is greater than the height of the fixing member 3, so that the fixing member 3 can be installed in the dowel hole 11. After the fixing member 3 penetrates the dowel hole 11, it is welded and fixed together with the upper side of the steel beam 2, and the fixing member 3 is completely located in the dowel hole 11, and then the hole is leveled by grouting grout 7. The fixing member 3 in the embodiment is preferably a connecting bolt, and the grout 7 is preferably C40 grout 7.

[0041] The utility model discloses a prefabricated floor 1, and the prefabricated floor 1 is provided with a plurality of fixed parts 3, and the fixed part 3 is arranged on the prefabricated floor 1 and is connected with a steel beam 2. The prefabricated floor 1 is provided with a plurality of reinforcing mesh sheets 4, and the reinforcing mesh sheet 4 is arranged in the prefabricated floor 1. The prefabricated floor connecting structure further comprises a plurality of leveling dowels 6, and the leveling dowel 6 is arranged between the two adjacent prefabricated floors 1 and is connected with the steel beam 2 and extends along the thickness direction of the prefabricated floor 1. The prefabricated floor connecting structure further comprises a filling slurry 7, and the filling slurry 7 is arranged between the two adjacent prefabricated floors 1.

[0042] Referring to FIGS. 2-5, the reinforcing mesh sheet 4 is arranged inside the floor 1, and at least one end of the reinforcing mesh sheet 4 is designed as an extension end 41 extending from the inside of the floor 1. Specifically, the extension end 41 in the embodiment is designed as a "U" type closed structure, the reinforcing mesh sheet 4 comprises a plurality of extension ends 41, the plurality of extension ends 41 are uniformly spaced along the extension direction of the adjacent floor connecting gap, the plurality of extension ends 41 in the adjacent floor are staggered, and overlap areas are formed in the arrangement direction. The prefabricated floor connecting structure further comprises at least one penetrating reinforcing bar 5, which sequentially penetrates the overlap areas of a plurality of adjacent extension ends 41 to connect two adjacent floors 1. To further improve the connection strength, the prefabricated floor connecting structure in the embodiment further comprises a leveling dowel 6 arranged between the two adjacent floors 1, which is connected to the steel beam 2 and extends along the thickness direction of the floor 1. The filling slurry 7 is arranged between the two adjacent floors 1.

[0043] Further, the edge of the floor 1 in the embodiment is provided with a groove 12, and the groove 12 is recessed inward from the side wall of the floor 1. The reinforcing mesh sheet 4 extends from the groove 12. The unique structure design of the groove 12 can increase the contact area of the filling material and the splicing joint, and utilize the principle of friction and mechanical interlocking force to make the filling material after pouring more firmly remain between the splicing joints.

[0044] In the utility model, the ends of the reinforcing mesh sheet 4 are staggered and inserted between the prefabricated floors 1, and the leveling dowel 6 is welded and fixed on the steel beam 2 at the insertion gap, and then the ends of the leveling dowel 6 and the reinforcing mesh sheet 4 and the prefabricated floor 1 are poured together by concrete. This method greatly reduces the labor intensity of workers, effectively avoids the risk of cracking, does not need to be polished and leveled subsequently, significantly improves the construction efficiency, and further reduces the cost and the risk of cracking.

[0045] Based on the above-mentioned involvement, the prefabricated floor connecting structure provided by the utility model shows excellent innovative performance and practical value. Its core advantage lies in the successful realization of the stable connection of the prefabricated floor through the ingenious matching structure between the steel mesh and the steel beam. This connection method discards the cumbersome process of secondary large-area pouring in the traditional process, and only needs to use a stud welding machine to quickly complete the welding and fixation of the stud on the upper side of the prefabricated floor, which is simple and efficient to operate.

[0046] In terms of material saving, in the traditional floor connecting technology, secondary large-area pouring consumes a large amount of pouring slurry, while the utility model only performs stud welding and fixation at specific positions, greatly reducing the amount of pouring slurry used. This not only reduces the cost of building materials, but also reduces the waste of resources and environmental impact caused by material transportation, storage and use.

[0047] In terms of construction efficiency, in the traditional process, secondary pouring involves multiple complex links such as formwork setting, concrete mixing and pouring, curing, etc., consuming a lot of manpower and time. The utility model simplifies the process and uses a stud welding machine to work quickly, greatly shortening the construction period, enabling the project to progress to the next stage more quickly, and effectively improving the overall construction efficiency.

[0048] In terms of ease of use, the operation process is simple and clear, and construction personnel only need to master the operation skills of the stud welding machine to efficiently complete the connection work, reducing the requirement for the professional skills of construction personnel and reducing human errors during construction. In terms of connection stability, the matching structure of the steel mesh and the steel beam, as well as the firm welding of the stud, jointly form a strong connection force, which can effectively resist various external forces and ensure that the prefabricated floor remains stable during long-term use, providing a solid guarantee for the structural safety of buildings. In addition, the utility model has a very wide range of applications, and can perfectly adapt to ordinary residential buildings, commercial buildings, industrial plants with high structural requirements, public facilities, etc., showing strong universality and adaptability. Embodiment

[0049] Referring to FIG. 6 and FIG. 7, another prefabricated floor connecting structure is provided in the embodiment. Different from the first embodiment, the prefabricated floor connecting structure in the embodiment comprises a plurality of penetrating steel bars 5, and at least part of the penetrating steel bars 5 are arranged in an interval along the arrangement direction of the floor 1. In modern architectural design, different building functions have different requirements for floor layout. Some buildings may need to reserve a larger space between floors for the installation of facilities such as ventilation pipes and electrical lines. Therefore, the structure provided in the embodiment can flexibly adjust the interval distance between adjacent floors according to the specific design requirements by arranging a plurality of penetrating steel bars 5 and part of which are arranged in an interval along the arrangement direction of the floor, thereby providing sufficient space for the installation of these facilities, meeting the diversified architectural design requirements, and compared with the fixed interval floor connecting method, this structure gives the construction personnel more autonomy in the field construction. Construction personnel can flexibly determine the interval size between adjacent floors according to actual conditions, such as the limitation of the construction site, the requirements of the specific construction process, etc. This flexibility not only reflects in the spatial layout, but also in the construction operation process, making the construction process more smooth and improving the operability of the construction.

[0050] In addition, the arrangement of a plurality of penetrating steel bars 5 and part of which are arranged in an interval along the arrangement direction of the floor can optimize the mechanical properties of the floor connecting structure to a certain extent. The penetrating steel bars 5 not only connect adjacent floors, but also play a role in dispersing stress. When the floor is subjected to external force, the penetrating steel bars 5 arranged in an interval can more evenly distribute the stress, avoiding structural damage caused by stress concentration, thereby improving the stability and carrying capacity of the entire floor connecting structure. The specific number and arrangement position of the penetrating steel bars 5 are not limited in the utility model. Embodiment

[0051] Referring to FIG. 8 and FIG. 9, another prefabricated floor connecting structure is provided in the embodiment. The feature is that the leveling dowels 6 are only arranged in an interval along the extending direction of the gap. This connecting method has unique advantages in some projects that have relatively specific requirements for structural strength, limited building space, and special requirements for the layout of leveling dowels. Compared with other methods of arranging leveling dowels in multiple rows, this method can save material cost and reduce construction process on the basis of meeting certain connection strength, thereby improving construction efficiency and providing an optimized connection solution for specific building scenarios. Embodiment

[0052] Referring to FIG. 10~FIG. 17, a prefabricated assembly building composite component is provided in the embodiment, which comprises the prefabricated floor connecting structure and the floor 1 described in the first embodiment, and the two adjacent floors 1 are connected by the prefabricated floor connecting structure. Further, the prefabricated assembly building composite component further comprises a steel column 8, the floor 1 is provided with a notched corner, and the steel column 8 is connected to the floor 1 and arranged in the notched corner.

[0053] The steel mesh 4 is formed by a plurality of steel bars crossing each other, and the outer side of the steel mesh 4 extends to the side for splicing of the adjacent prefabricated floor slab 1. The prefabricated floor slab 1 is provided with a bolt hole 11 corresponding to the position of the steel beam 2, when the bolt hole 11 is arranged at the two ends of the prefabricated floor slab 1, the prefabricated floor slab 1 is located at the middle of the steel beam 2, when the bolt hole 11 is arranged at the three side edges of the prefabricated floor slab 1, the prefabricated floor slab 1 is located at the end side of the steel beam 2. According to the different installation positions of the prefabricated floor slab 1 on the steel beam 2, the corners of the prefabricated floor slab 1 are reserved to avoid the missing corners of the steel column 8, and the prefabricated floor slab 1 is located at the end of the steel beam 2 and combined with the steel column 8. The bolt hole 11 avoids the steel bars of the steel mesh 4, and the bolt hole 11 is used for fixing the prefabricated floor slab 1 on the steel beam 2 by the fixing member 3. Specifically, the fixing member 3 in the embodiment is preferably a connecting bolt.

[0054] The side of the splicing of the adjacent prefabricated floor slab 1 is transversely provided with a groove 12, and the steel mesh 4 extends to the outer side of the prefabricated floor slab 1 from the side of the groove 12. The steel mesh 4 is formed by a plurality of rectangular steel frame units crossing each other, the end of the steel mesh 4 extending to the side of the groove 12 is in a U-shaped closed structure, and the U-shaped closed structures of the steel meshes 4 of the adjacent prefabricated floor slabs 1 are cross-positioned and spliced together.

[0055] The prefabricated floor slab 1 is provided with the bolt hole 11, the fixing member 3 is welded and fixed on the steel beam 2, and then the bolt hole 11 is filled with pouring material. The groove 12 is arranged at the splicing end of the prefabricated floor slab 1, and the U-shaped closed structure of the steel mesh 4 is cross-positioned and spliced, the transversely penetrating steel bars in the U-shaped closed structure are fixed in series, then the U-shaped closed structures are welded and fixed by the bolt 5, and finally the splicing position is filled with pouring material. The existence of the groove 12 makes the filled material after pouring more firmly remain between the splicing joints.

[0056] The prefabricated floor slab 1 is directly hoisted, welded and fixed at the construction site in the factory prefabricated manner, finally filled with pouring material, directly laid on the steel beam 2 as a prefabricated slab, without the need for secondary formwork pouring and leveling treatment, convenient for connection and fixation with the steel beam 2, greatly improving the laying work efficiency of the floor slab 1, and changing the traditional construction mode. This innovation not only greatly improves the construction efficiency, but also saves the pouring material and leveling treatment process, and brings significant economic benefits and technical advantages to the assembly type building construction.

[0057] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A precast floor connection structure, characterized by: include: A steel mesh is connected inside the floor slab, and two adjacent floor slabs are connected by the steel mesh. A steel beam that supports the floor slab and is connected to the slab body of the floor slab and / or to two adjacent floor slabs.

2. The precast floor slab connection structure of claim 1, wherein: The floor slab has bolt holes inside, and fasteners are installed in the bolt holes. The floor slab is connected to the steel beam through the fasteners.

3. The precast floor slab connection structure of claim 2, wherein: The fastener is a connecting bolt, and the bolt hole is filled with grout.

4. The precast floor connection structure of claim 1, wherein: The steel mesh is laid inside the floor slab, and at least one end of the steel mesh is set as a protruding end, which extends out from inside the floor slab.

5. The precast floor panel connection structure of claim 4, wherein: The steel mesh includes multiple protruding ends, which are evenly spaced along the extension direction of the joint between adjacent floor slabs.

6. The precast floor slab connection structure of claim 4, wherein: The protruding ends of adjacent floor slabs are staggered and form overlapping areas in their arrangement direction. The precast floor slab connection structure also includes at least one through steel bar, which passes through the overlapping areas of multiple adjacent protruding ends in sequence to connect two adjacent floor slabs.

7. The precast floor slab connection structure of claim 6, wherein: The precast floor slab connection structure includes multiple through steel bars, at least some of which are spaced apart along the arrangement direction of the floor slab to adjust the spacing between adjacent floor slabs.

8. The precast floor connection structure of claim 1, wherein: The precast floor slab connection structure also includes leveling studs, which are disposed between two adjacent floor slabs, connected to the steel beam, and extend along the thickness direction of the floor slab. Filling grout is provided between two adjacent floor slabs.

9. The precast floor connection structure of claim 1, wherein: The floor slab has a groove on its edge, which is recessed inward from the side wall of the floor slab, and the steel mesh extends out from the groove.

10. The precast floor connection structure of claim 1, wherein: The steel mesh comprises multiple steel reinforcement units, which are connected in a mesh-like, interwoven manner.

11. A prefabricated building assembly component, characterised in that: Includes the precast floor slab connection structure and floor slab as described in any one of claims 1 to 10, wherein two adjacent floor slabs are connected by the precast floor slab connection structure.

12. The prefabricated construction assembly component according to claim 11, characterized in that: The prefabricated building assembly components also include steel columns, and the floor slab has a notch. The steel columns are connected to the floor slab and are located in the notch.

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