Prefabricated floor slab structure for fabricated building

Abstract

The prefabricated floor slab structure overcomes the defects in the prior art, serves as a prefabricated slab and is directly paved on a steel beam, secondary formwork erecting and pouring are not needed, leveling treatment is also not needed, connection and fixation with the steel beam are convenient, and the paving work of a floor slab is greatly improved; in order to solve the technical problem, the technical scheme adopted by the utility model is as follows: the prefabricated floor slab structure for the prefabricated building comprises a prefabricated floor slab body and a reinforcing mesh, the reinforcing mesh is poured in the prefabricated floor slab body, the reinforcing mesh is formed by binding a plurality of reinforcing steel bars which are vertically and horizontally staggered, and the reinforcing steel bars are arranged in the prefabricated floor slab body. The outer sides of the reinforcing meshes extend to the side faces used for splicing the adjacent prefabricated floor slab bodies, reserved holes are formed in the positions, corresponding to steel beams, of the prefabricated floor slab bodies, studs are inserted into the reserved holes, and the prefabricated floor slab bodies are fixed to the steel beams through the studs. The utility model can be widely applied to the field of fabricated buildings.

Description

Technical Field

[0001] The utility model relates to a precast floor slab structure for prefabricated buildings, belonging to the technical field of prefabricated buildings. Background Art

[0002] In prefabricated buildings, the floor slabs usually adopt composite floor slabs, which are laid on site. The joints between the upper layer and the slabs of the composite floor slabs are sealed by formwork support and secondary pouring. In addition to ensuring no leakage of concrete during pouring, more concrete materials are needed for filling the gaps, and leveling treatment is required later. Cracking may also occur after the concrete solidifies, further causing secondary quality problems. Therefore, how to solve this problem has always been the focus of research by those skilled in the art. Content of the Utility Model

[0003] The utility model overcomes the deficiencies of the prior art and provides a precast floor slab structure for prefabricated buildings, which is directly paved on the steel beam as a precast slab, without secondary formwork support and pouring, and without leveling treatment, facilitating the connection and fixation with the steel beam, and greatly improving the laying work of the floor slab.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a precast floor slab structure for prefabricated buildings, including a precast floor slab body and a steel bar mesh. The steel bar mesh is poured in the precast floor slab body. The steel bar mesh is formed by bundling multiple steel bars that are vertically and horizontally staggered. The outside of the steel bar mesh extends to the side for splicing adjacent precast floor slab bodies. Reserved holes are provided at the positions of the precast floor slab body corresponding to the steel beam. Studs are inserted into the reserved holes to fix the precast floor slab body on the steel beam through the studs.

[0005] Further, the reserved holes are arranged to avoid the steel bars of the steel bar mesh.

[0006] Further, a groove is horizontally arranged on the side for splicing adjacent precast floor slab bodies, and the steel bar mesh extends out of the outside of the precast floor slab body from the side of the groove.

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

[0008] Further, according to the different installation positions of the precast floor slab body on the steel beam, cut corners are reserved at the corners of the precast floor slab body to avoid steel columns.

[0009] Further, the reserved holes are arranged at either both ends of the precast floor slab body or at three side ends of the precast floor slab body.

[0010] The beneficial effects of the present utility model compared with the prior art are as follows: The present utility model is prefabricated in the factory, directly hoisted and welded on-site, and finally filled with castable. It is directly laid on the steel beam as a precast slab, without secondary formwork pouring or leveling treatment, facilitating connection and fixation with the steel beam, greatly improving the floor laying work, changing the traditional construction method, not only greatly improving the construction efficiency, but also saving castable and leveling treatment procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present utility model will be further described below with reference to the accompanying drawings.

[0012] Figure 1 is a structural schematic diagram of the present utility model Figure 1 .

[0013] Figure 2 is a structural schematic diagram of the present utility model Figure 2 .

[0014] Figure 3 is a structural schematic diagram of the present utility model Figure 3 .

[0015] Figure 4 is a structural schematic diagram of the steel mesh in the present utility model.

[0016] Figure 5 is a paving structure schematic diagram of the present utility model Figure 1 .

[0017] Figure 6 is a paving structure schematic diagram of the present utility model Figure 2 .

[0018] Figure 7 is a partial schematic diagram of the splicing part of the precast floor slab body in the present utility model.

[0019] In the figure: 1 is the precast floor slab body, 2 is the steel mesh, 3 is the steel beam, 4 is the reserved hole, 5 is the stud, 6 is the groove, 7 is the cut corner, 8 is the steel column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with specific embodiments.

[0021] Such as Figures 1 to 7As shown in the figure, a precast floor slab structure for prefabricated buildings according to the present utility model includes a precast floor slab body 1 and a steel mesh 2. The steel mesh 2 is cast in the precast floor slab body 1. The steel mesh 2 is formed by bundling multiple steel bars that are vertically and horizontally staggered. The outer side of the steel mesh 2 extends to the side for splicing adjacent precast floor slab bodies 1. A reserved hole 4 is provided at the position of the precast floor slab body 1 corresponding to the steel beam 3. When the reserved hole 4 is provided at both ends of the precast floor slab body 1, such a precast floor slab body 1 is located in the middle of the steel beam 3. When the reserved hole 4 is provided at three side ends of the precast floor slab body 1, such a precast floor slab body 1 is located at the end side of the steel beam 3. According to the different installation positions of the precast floor slab body 1 on the steel beam 3, a notch 7 for avoiding the steel column 8 is reserved at the corner of the precast floor slab body 1. Such a precast floor slab body 1 is located at the end of the steel beam and at the joint with the steel column 8. The reserved hole 4 is arranged to avoid the steel bars of the steel mesh 2. A stud 5 is inserted into the reserved hole 4, and the precast floor slab body 1 is fixed to the steel beam 3 through the stud 5.

[0022] A groove 6 is horizontally arranged on the side for splicing adjacent precast floor slab bodies 1. The steel mesh 2 extends out of the outer side of the precast floor slab body 1 from the side of the groove 6. The steel mesh 2 is formed by vertically and horizontally staggering rectangular steel bar frame units. The end of the steel mesh 2 extending to the side of the groove 6 is in a U-shaped closed structure. The U-shaped closed structures of the steel meshes 2 of adjacent precast floor slab bodies 1 are spliced together in a crosswise and staggered manner.

[0023] In the present utility model, the steel mesh 2 is pre-cast in the precast floor slab body 1 and extends out at the splicing end of the precast floor slab body 1, which is convenient for splicing and fixing adjacent precast floor slab bodies 1. Reserved holes 4 are provided on the precast floor slab body 1 and are welded and fixed to the steel beam 3 by inserting studs 5. Then, the reserved holes 4 are filled with pouring material. Grooves 6 are provided at the splicing joints of the precast floor slab body 1, and the U-shaped closed structures extended by the steel meshes 2 are spliced in a staggered manner. Steel bars are horizontally penetrated through the U-shaped closed structures for series connection and fixing. Then, studs 5 are inserted between the U-shaped closed structures for welding and fixing. Finally, the splicing joints are filled with pouring material. The presence of the grooves 6 makes the filling material after pouring more firmly exist between the splicing joints.

[0024] The present utility model is prefabricated in a factory, directly hoisted and welded and fixed at the construction site, and finally filled with pouring material. It is directly paved on the steel beam as a precast slab, without secondary formwork pouring or leveling treatment, which is convenient for connection and fixing with the steel beam, greatly improving the floor laying work, changing the traditional construction method, not only greatly improving the construction efficiency, but also saving the pouring material and the leveling treatment process.

[0025] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A precast floor slab structure for prefabricated buildings, characterized in that, It includes a precast floor slab body (1) and a steel mesh sheet (2). The steel mesh sheet (2) is cast in the precast floor slab body (1). The steel mesh sheet (2) is formed by bundling multiple steel bars that are horizontally and vertically staggered. The outer side of the steel mesh sheet (2) extends to the side for splicing adjacent precast floor slab bodies (1). At the position of the precast floor slab body (1) corresponding to the steel beam (3), a reserved hole (4) is provided. A stud (5) is inserted into the reserved hole (4) to fix the precast floor slab body (1) on the steel beam (3).

2. The precast floor slab structure for prefabricated buildings according to claim 1, characterized in that, The reserved hole (4) is arranged to avoid the steel bars of the steel mesh sheet (2).

3. A precast floor slab structure for prefabricated buildings according to claim 1 or 2, characterized in that, A groove (6) is horizontally arranged on the side for splicing adjacent precast floor slab bodies (1). The steel mesh sheet (2) extends out of the outer side of the precast floor slab body (1) from the side of the groove (6).

4. A precast floor slab structure for prefabricated buildings according to claim 3, characterized in that, The steel mesh sheet (2) is formed by horizontally and vertically staggering rectangular steel bar frame units. The end of the steel mesh sheet (2) extending to the side of the groove (6) is in a U-shaped closed structure.

5. The precast floor slab structure for prefabricated buildings according to claim 4, characterized in that, According to the different installation positions of the precast floor slab body (1) on the steel beam (3), a cut corner (7) for avoiding the steel column (8) is reserved at the corner of the precast floor slab body (1).

6. The precast floor slab structure for prefabricated buildings according to claim 5, characterized in that, The reserved hole (4) is either arranged at both ends of the precast floor slab body (1) or at the three side ends of the precast floor slab body (1).

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