Multi-stud connecting structure for prefabricated floor slab and steel beam

Abstract

The utility model discloses a multi-stud connecting structure for a prefabricated floor slab and a steel beam, which is characterized in that studs, the tail end of a reinforcing mesh and a prefabricated floor slab body are poured together through concrete, so that the labor intensity of workers is greatly reduced, the risk of cracking is avoided, subsequent polishing and leveling are not needed, and the construction efficiency is improved; the prefabricated floor slab bodies are sequentially laid on the steel beams, reinforcing meshes are poured in the prefabricated floor slab bodies, the ends of the reinforcing meshes extend out of the splicing sides between the adjacent prefabricated floor slab bodies to form reinforcing mesh extending ends, and the reinforcing mesh extending ends between the adjacent prefabricated floor slab bodies are staggered and crossed together. Studs are arranged between the extending ends of the reinforcing mesh pieces, the studs are welded and fixed to the steel beams, and splicing seams of the prefabricated floor slab body including the extending ends of the reinforcing mesh pieces and the studs are filled and leveled up through filling materials. The utility model can be widely applied to the field of fabricated buildings.

Description

Technical Field

[0001] The utility model relates to a multi-bolt connection structure of a prefabricated floor slab and a steel beam, belonging to the technical field of assembled buildings. Background Art

[0002] The floor slabs in prefabricated buildings are usually composite slabs, which are laid on site. The joints between the composite slabs are sealed by secondary pouring. In addition to ensuring that there is no leakage during concrete pouring, a large amount of concrete is used to fill the gaps, which not only requires leveling treatment in the later stage, but also causes cracks after the concrete solidifies, further causing secondary quality problems. Utility Model Content

[0003] The utility model overcomes the shortcomings of the existing technology and provides a multi-bolt connection structure between prefabricated floor slabs and steel beams. The ends of the bolts and the steel mesh are cast together with the prefabricated floor slab body through concrete, which greatly reduces the labor intensity of workers and avoids the risk of cracking. There is no need for subsequent grinding and leveling, which improves construction efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a multi-bolt connection structure of a prefabricated floor slab and a steel beam, comprising a prefabricated floor slab body, a steel mesh and a steel beam, the prefabricated floor slab body being laid on the steel beam in sequence, and a steel mesh being cast in the prefabricated floor slab body, the ends of the steel mesh extending from the splicing sides between adjacent prefabricated floor slab bodies to form protruding ends of the steel mesh, the protruding ends of the steel mesh between adjacent prefabricated floor slab bodies being staggered and crossed together, bolts being arranged between the protruding ends of the steel mesh, the bolts being welded and fixed to the steel beam, and the splicing seams of the prefabricated floor slab bodies including the protruding ends of the steel mesh and the bolts being filled with filler.

[0005] Furthermore, the bolts are arranged in one row or more than one row at the joints of the prefabricated floor slab body.

[0006] Furthermore, a groove is transversely provided on the end side of the steel beam where the protruding end of the steel mesh is located, and the protruding end of the steel mesh is located in the groove.

[0007] Furthermore, the steel mesh is formed by staggering rectangular steel frame units vertically and horizontally, and the end of the steel mesh extending into the groove is a U-shaped closed structure.

[0008] Furthermore, the filling material is concrete.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention does not use prefabricated floor slab bodies, but uses the ends of the steel mesh to be inserted and fixed to the steel beams by welding with bolts at the insertion gaps, and the bolts and the ends of the steel mesh are cast together with the prefabricated floor slab bodies through concrete, which greatly reduces the labor intensity of workers, avoids the risk of cracking, and does not require subsequent grinding and leveling, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the connection structure between the prefabricated floor slab joints and the steel beams in the present invention.

[0012] Figure 2 This is a partial schematic diagram of the connection structure between the prefabricated floor slab joints and the steel beams in the present invention.

[0013] Figure 3 This is a schematic diagram of the partial structure of the prefabricated floor slab body in the present utility model.

[0014] In the figure: 1 is the prefabricated floor slab body, 2 is the steel mesh, 3 is the steel beam, 4 is the stud, and 5 is the groove. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] like Figures 1 to 3 As shown, the utility model is a multi-bolt connection structure of a prefabricated floor slab and a steel beam, comprising a prefabricated floor slab body 1, a steel mesh 2 and a steel beam 3. The prefabricated floor slab body 1 is sequentially paved on the steel beam 3. The prefabricated floor slab body 1 is cast with a steel mesh 2. The end of the steel mesh 2 extends from the splicing side between adjacent prefabricated floor slab bodies 1 to form a steel mesh protruding end. The steel mesh protruding ends between adjacent prefabricated floor slab bodies 1 are staggered and crossed together. The steel mesh 2 is a rectangular steel frame unit staggered vertically and horizontally. The steel mesh A groove 5 is laterally provided on the end side of the steel beam 3 where the protruding end is located, and the protruding end of the steel mesh is located in the groove 5. The end of the steel mesh 2 protruding into the groove 5 is a U-shaped closed structure, and studs 4 are provided between the protruding ends of the steel mesh. The studs 4 are arranged in one row or more than one row at the splicing seam of the prefabricated floor slab body 1. The studs 4 are welded and fixed to the steel beam 3, and the splicing seam of the prefabricated floor slab body 1 including the protruding end of the steel mesh and the studs 4 is filled with concrete. The presence of the groove 5 makes the filling material after pouring more firmly present between the splicing seam.

[0017] The utility model adopts the method of adding the ends of the steel mesh 2 to the prefabricated floor body 1, and fixing them to the steel beam 3 by welding at the joint gap through bolts 4. The bolts 4 and the ends of the steel mesh 2 are cast together with the prefabricated floor body 1 through concrete, which greatly reduces the labor intensity of workers and avoids the risk of cracking. There is no need for subsequent grinding and leveling, which improves construction efficiency.

[0018] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A multi-bolt connection structure of prefabricated floor slabs and steel beams, characterized in that: The invention comprises a prefabricated floor slab body (1), a steel mesh (2) and a steel beam (3), wherein the prefabricated floor slab body (1) is sequentially laid on the steel beam (3), the steel mesh (2) is cast in the prefabricated floor slab body (1), the end of the steel mesh (2) extends from the splicing side between adjacent prefabricated floor slab bodies (1) to form a steel mesh protruding end, the steel mesh protruding ends between adjacent prefabricated floor slab bodies (1) are staggered and crossed together, bolts (4) are provided between the steel mesh protruding ends, the bolts (4) are welded and fixed on the steel beam (3), and the splicing seam of the prefabricated floor slab body (1) including the steel mesh protruding end and the bolts (4) is filled with filler.

2. The multi-bolt connection structure of prefabricated floor slabs and steel beams according to claim 1, characterized in that: The bolts (4) are arranged in one row or more than one row and are arranged at the joints of the prefabricated floor slab body (1).

3. A multi-bolt connection structure of prefabricated floor slabs and steel beams according to claim 1 or 2, characterized in that: A groove (5) is transversely provided on the end side of the steel beam (3) where the protruding end of the steel mesh is located, and the protruding end of the steel mesh is located in the groove (5).

4. The multi-bolt connection structure of prefabricated floor slabs and steel beams according to claim 3, characterized in that: The steel mesh (2) is formed by staggering rectangular steel frame units vertically and horizontally, and the end of the steel mesh (2) extending into the groove (5) is a U-shaped closed structure.

5. The multi-bolt connection structure of prefabricated floor slabs and steel beams according to claim 1, characterized in that: The filling material is concrete.

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