Fabricated floor slab structure

Abstract

The utility model relates to an assembly type floor slab structure, which belongs to the technical field of assembly type buildings and comprises a concrete floor slab body, a plurality of upper steel bars and lower steel bars are arranged in the concrete floor slab body along the front-back direction, connecting steel bars are fixed between the upper steel bars and the lower steel bars, and the left ends of the upper steel bars penetrate out of the concrete floor slab. The right ends of the lower steel bars penetrate out of the concrete floor slab bodies, stepped positioning holes are formed in the upper portions of the right side walls and the lower portions of the left side walls of the concrete floor slab bodies, and cast-in-place concrete filling intervals are arranged between the adjacent concrete floor slab bodies. The adjacent concrete floor slab bodies are connected and positioned through the extending ends of the upper steel bars and the lower steel bars and the positioning holes, and the cast-in-place concrete filling space is arranged between the adjacent concrete floor slab bodies, so that when upper-layer concrete is poured, the upper-layer concrete enters the cast-in-place concrete filling space, the connecting grooves and the positioning holes; the adjacent concrete floor bodies are fixed into a whole, and the overall strength of the floor is higher.

Description

Technical Field

[0001] The utility model relates to an assembled floor structure and belongs to the technical field of assembled buildings. Background Art

[0002] Prefabricated buildings have many advantages, such as shortening the construction period and saving manpower, so they are increasingly being developed. Prefabricated floor is a type of prefabricated building. The current prefabricated floor structure generally sets assembly ribs and grooves on both sides of the floor, and connects them through the cooperation of ribs and grooves. However, the strength of the joints of such structures is not high, which affects the overall strength of the floor. Utility Model Content

[0003] The utility model provides an assembled floor structure, which solves the problem that the strength of the assembly connection of the existing assembled floor is not high, thus affecting the overall strength of the floor.

[0004] The utility model relates to an assembled floor structure, comprising a concrete floor body, wherein a plurality of upper steel bars and lower steel bars are arranged in the front-to-back direction in the concrete floor body, connecting steel bars are welded and fixed between the upper steel bars and the lower steel bars, the left end of the upper steel bar passes through the concrete floor, and the right end of the lower steel bar passes through the concrete floor body, the upper right side wall and the lower left side wall of the concrete floor body are both provided with stepped positioning holes respectively matched with the upper steel bars and the lower steel bars, annular connecting grooves are arranged on the side walls of the concrete floor body outside the protruding ends of the upper steel bars and the lower steel bars, a cast-in-place concrete filling spacing is arranged between adjacent concrete floor bodies, and a reinforcing steel bar is welded and fixed to the top of the right end of the lower steel bar.

[0005] As a preferred embodiment, casting supports are provided on both sides of the bottom of the concrete floor slab body, a sealing boss is provided at the outer edge of the left casting support, and a sealing recess is provided at the outer edge of the right casting support. When adjacent concrete floor slab bodies are assembled and spliced, the sealing boss and the sealing recess cooperate to form a labyrinth seal, and the casting support forms a lower casting formwork to prevent concrete leakage.

[0006] As a preferred embodiment, the casting support, sealing boss and sealing recess are all provided with steel reinforcement rods, and the inner ends of the steel reinforcement rods are welded and fixed to the lower steel bars to increase the strength of the casting support, sealing boss and sealing recess to prevent them from being broken.

[0007] As a preferred embodiment, a plurality of trusses are provided above the concrete floor body, and fixing bars are fixed at the front and rear of the bottom of each truss, and the bottom of the fixing bars is welded and fixed to the upper steel bars, so that the floor can be lifted conveniently.

[0008] As a preferred embodiment, the upper part of the concrete floor body and the left and right sides are provided with connected insulation layers to better insulate the heat.

[0009] The utility model has the following beneficial effects:

[0010] Adjacent concrete floor slab bodies are connected and positioned by the protruding ends and positioning holes of the upper and lower steel bars, and cast-in-place concrete filling gaps are provided between adjacent concrete floor slab bodies. When pouring the upper concrete layer, the upper concrete layer enters the cast-in-place concrete filling gaps, connecting grooves and positioning holes, thereby fixing the adjacent concrete floor slab bodies into a whole, and the overall strength of the floor slab is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of part of the structure after the upper concrete is poured;

[0013] In the figure: 1. concrete slab body, 2. upper steel bars, 3. trusses, 4. fixing bars, 5. connecting steel bars, 6. lower steel bars, 7. casting support, 8. cast-in-place concrete filling spacing, 9. connecting grooves, 10. sealing bosses, 11. reinforcing steel bars, 12. steel bar reinforcing rods, 13. sealing recesses, 14. positioning holes, 15. insulation layer, 16. upper concrete layer. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with embodiments.

[0015] Embodiment 1, as Figure 1 and Figure 2 As shown, the utility model is an assembled floor structure, including a concrete floor body 1, in which a plurality of upper steel bars 2 and lower steel bars 6 are arranged along the front-to-back direction, a connecting steel bar 5 is welded and fixed between the upper steel bars 2 and the lower steel bars 6, the left end of the upper steel bar 2 passes through the concrete floor body 1, and the right end of the lower steel bar 6 passes through the concrete floor body 1, and the upper right side wall and the lower left side wall of the concrete floor body 1 are provided with stepped positioning holes 14 respectively matched with the upper steel bars 2 and the lower steel bars 6, an annular connecting groove 9 is provided on the side wall of the concrete floor body 1 outside the protruding ends of the upper steel bars 2 and the lower steel bars 6, a cast-in-place concrete filling spacing 8 is provided between adjacent concrete floor bodies 1, and a reinforcing steel bar 11 is welded and fixed to the top of the right end of the lower steel bar 6.

[0016] During operation, the concrete floor slab body 1 is hoisted by a crane for assembly and docking. When docking, the upper steel bars 2 and the lower steel bars 6 will be inserted into the corresponding positioning holes 14, and then the reinforcing steel bars 11 will be tied and fixed to the upper steel bars 2 using iron wire. When all the prefabricated floor slabs are assembled, the upper concrete 16 is poured. At this time, the upper concrete 16 will enter the cast-in-place concrete filling spacing 8, and the upper concrete 16 will flow into the outer end of the positioning hole 14 and the connecting groove 9. In this way, after the upper concrete 16 is dry, the adjacent floor slab connections will form a whole with higher strength.

[0017] Embodiment 2, on the basis of embodiment 1, casting platforms 7 are provided on both the left and right sides of the bottom of the concrete floor slab body 1, a sealing boss 10 is provided at the outer edge of the casting platform 7 on the left side, and a sealing recess 13 is provided at the outer edge of the casting platform 7 on the right side. When the upper layer of concrete 16 is poured, the casting platform 7 will serve as the lower formwork for the upper layer of concrete 16 at the cast-in-place concrete filling spacing 8.

[0018] A steel reinforcement rod 12 is provided inside the casting support platform 7 , the sealing boss 10 and the sealing recess 13 , and the inner end of the steel reinforcement rod 12 is welded and fixed to the lower steel bar 6 .

[0019] A plurality of trusses 3 are arranged above the concrete floor body 1, and a fixing rib 4 is fixed to the front and rear bottom of each truss 3, and the bottom of the fixing rib 4 is welded and fixed to the upper reinforcement 2. When the floor is hoisted, the hook can be hung on the truss 3 to facilitate the hoisting of the floor.

[0020] The upper part and the left and right sides of the concrete floor body 1 are both provided with connected insulation layers 15. The insulation layer 15 is a ceramic wool insulation layer.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0022] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. An assembled floor structure, comprising a concrete floor body (1), characterized in that: A plurality of upper steel bars (2) and lower steel bars (6) are arranged in the front-to-back direction in the concrete slab body (1); a connecting steel bar (5) is welded and fixed between the upper steel bars (2) and the lower steel bars (6); the left end of the upper steel bar (2) passes through the concrete slab body (1); the right end of the lower steel bar (6) passes through the concrete slab body (1); the upper right wall and the lower left wall of the concrete slab body (1) are provided with stepped positioning holes (14) respectively matched with the upper steel bars (2) and the lower steel bars (6); an annular connecting groove (9) is arranged on the side wall of the concrete slab body (1) outside the protruding ends of the upper steel bars (2) and the lower steel bars (6); a cast-in-place concrete filling spacing (8) is arranged between adjacent concrete slab bodies (1); and a reinforcing steel bar (11) is welded and fixed to the top of the right end of the lower steel bar (6).

2. The assembled floor structure according to claim 1, characterized in that: Casting platforms (7) are provided on both left and right sides of the bottom of the concrete floor slab body (1), a sealing convex platform (10) is provided at the outer edge of the left casting platform (7), and a sealing concave platform (13) is provided at the outer edge of the right casting platform (7).

3. The assembled floor structure according to claim 2, characterized in that: A steel reinforcement rod (12) is provided inside the casting support platform (7), the sealing convex platform (10) and the sealing concave platform (13), and the inner end of the steel reinforcement rod (12) is welded and fixed to the lower steel bar (6).

4. The assembled floor structure according to claim 1, characterized in that: A plurality of trusses (3) are arranged above the concrete floor slab body (1), and fixing bars (4) are fixed at the front and rear ends of the bottom of each truss (3), and the bottom of the fixing bars (4) is fixed by welding to the upper steel bars (2).

5. The assembled floor structure according to claim 1, characterized in that: The upper part and the left and right sides of the concrete floor slab body (1) are both provided with a thermal insulation layer (15).

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