Truss-free steel bar edge composite floor slab connecting piece

Abstract

The utility model discloses a truss-free steel bar edge composite floor slab connecting piece, and relates to the technical field of steel structure buildings, the truss-free steel bar edge composite floor slab connecting piece comprises two composite floor slab bodies, steel bar meshes are arranged in the two composite floor slab bodies, and two pairs of shear force connecting pieces are arranged between the two composite floor slab bodies. A connecting plate is arranged on the lower surface of each composite floor slab body, and two pairs of screws are fixedly connected to the upper surface of the connecting plate. During connection on a construction site, the connecting plates are placed on the ground, the two composite floor slab bodies are connected to the connecting plates in a clamped mode, and the connecting plates are clamped and limited through the two pairs of screws and the two sets of limiting blocks which are fixed to the connecting plates; and the two pairs of nuts are rotated for fixing, at the moment, the two pairs of shearing force connecting pieces are clamped into a set of limiting grooves formed in the two composite floor slab bodies, at the moment, the connecting ends of the two reinforcing mesh pieces are welded, and then concrete is poured into the connecting gap of the two composite floor slab bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure buildings, in particular to a truss-free steel bar edge laminated floor slab connector. Background Art

[0002] The truss-free steel bar edge-laminated floor connector is a building structural component used to connect precast concrete floor units to form an integral floor structure. The design of this connector is intended to simplify the construction process, improve construction efficiency, and ensure the stability and bearing capacity of the floor.

[0003] At present, there is an existing truss-free steel bar edge composite floor connector (such as patent number: CN201521134263.8) a prefabricated composite floor connector used in prefabricated steel structure buildings, which includes a prefabricated composite floor and a steel beam, one end of the prefabricated composite floor is placed on the steel beam, the prefabricated composite floor is embedded with steel bars, a part of the steel bars extends from the side of the end of the prefabricated composite floor and is exposed to the outside, the positioning guide bolts ensure the installation positioning of the floor and the shelf length of the floor, the additional steel bars on site are connected to the steel bars of the floor, the prefabricated floor and the structural steel beam form an overall force model, and the technical requirements of the overall force transmission of the structural floor are achieved.

[0004] However, during the implementation of the above technical solution, the following technical problems were found: during the implementation of the above solution, additional steel bars are required to tie and fix each group of two reserved beard steel bars facing each other together, which is cumbersome to operate and has limited connection stability. The overall spacing is fixed and cannot be adjusted. Some minor errors in size or alignment during the construction process will lead to overall inapplicability. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a truss-free steel bar edge composite floor connector, which solves the problem that the overall spacing is fixed and cannot be adjusted, and some minor errors in size or alignment during the construction process will lead to overall unsuitability.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a truss-free steel bar edge composite floor connector, comprising two composite floor bodies, both of which are provided with steel meshes, two pairs of shear connectors are provided between the two composite floor bodies, a connecting plate is provided on the lower surface of the composite floor body, two pairs of screws are fixedly connected to the upper surface of the connecting plate, and nuts are threadedly sleeved on the surfaces of the two pairs of screws, two pairs of limit grooves are provided on the opposite surfaces of the two composite floor bodies, and the two groups of limit grooves are respectively movably engaged with the two groups of shear connectors, and the opposite surfaces of the two shear connectors located on the front and rear sides of the two pairs of shear connectors are penetrated by slots and bolts, and two holes are provided on the upper surfaces of the two composite floor bodies, and the two pairs of holes are distributed and movably sleeved with the two pairs of nuts.

[0009] As a preferred technical solution of the utility model, two groups of limit blocks are fixedly connected to the upper surface of the connecting plate, and the two groups of limit blocks are movably engaged with the two groups of limit grooves respectively.

[0010] As a preferred technical solution of the utility model, two holes are provided on the inner walls of the two slots, and the two holes are movably sleeved with two bolts respectively.

[0011] As a preferred technical solution of the utility model, the two middle shear connectors in the two pairs of shear connectors are fixedly connected to each other with connecting rods on their backs, the two connecting rods are fixedly connected to each other with fixing plates on their backs, and the two connecting rods are movably connected to the two slots respectively.

[0012] As a preferred technical solution of the utility model, a group of holes three are opened on the upper surfaces of the two connecting rods, and the two groups of holes three are movably connected with the two bolts respectively.

[0013] (III) Beneficial effects

[0014] 1. The connecting plate is clamped and limited by two pairs of screws and two groups of limit blocks fixed on it, and the two pairs of nuts are rotated to fix it. At this time, the two pairs of shear connectors are clamped into a group of limit grooves opened on the two composite floor bodies. At this time, the two steel mesh connection ends are welded, and then concrete is poured in the connection gap between the two composite floor bodies to ensure the stability of the connection between the structures, which can ensure high precision and consistency and improve the overall construction quality.

[0015] 2. The two middle shear connectors of the two pairs of shear connectors are movably connected with the other two shear connectors through the connecting rods fixed thereon. After the spacing between the two shear connectors is adjusted according to the needs, they are fixed by bolts. The overall operation is simple and flexible. During the construction process, there may be some minor errors in size or alignment, and the adjustable shear connectors can compensate for these errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the connecting plate in the utility model;

[0019] Figure 3 This is the main structure diagram of the composite floor in the utility model;

[0020] Figure 4 This is a structural diagram of the shear connector in the utility model.

[0021] Legend: 1. Composite slab body; 2. Connecting plate; 3. Steel mesh; 4. Screw; 5. Connecting rod; 6. Shear connector; 7. Limit block; 8. Hole one; 9. Nut; 10. Limit slot; 11. Hole two; 12. Slot; 13. Hole three; 14. Bolt; 15. Fixing plate. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides a truss-free steel bar edge composite floor connector, which effectively solves the problem that the overall spacing is fixed and cannot be adjusted, and some minor errors in size or alignment during the construction process will lead to the overall inapplicability. The two pairs of nuts 9 are rotated to fix them. At this time, the two pairs of shear connectors 6 are clamped into a set of limit grooves 10 provided on the two composite floor bodies 1. At this time, the connecting ends of the two steel meshes 3 are welded, and then concrete is poured in the connecting gap between the two composite floor bodies 1 to ensure the stability of the connection between the structures, which can ensure high precision and consistency and improve the overall construction quality.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the problem that the overall spacing is fixed and cannot be adjusted, and some minor errors in size or alignment during the construction process will lead to the overall inapplicability. The overall idea is as follows:

[0025] In view of the problems existing in the prior art, the utility model provides a truss-free steel bar edge composite floor connector, including two composite floor bodies 1, each of which is provided with a steel mesh 3, two pairs of shear connectors 6 are provided between the two composite floor bodies 1, a connecting plate 2 is provided on the lower surface of the composite floor body 1, two pairs of screws 4 are fixedly connected to the upper surface of the connecting plate 2, and nuts 9 are threadedly sleeved on the surfaces of the two pairs of screws 4, two pairs of limit grooves 10 are provided on the opposite surfaces of the two composite floor bodies 1, and the two groups of limit grooves 10 are respectively movably connected with the two groups of shear connectors 6, and the opposite surfaces of the two shear connectors 6 located on the front and rear sides of the two pairs of shear connectors 6 are penetrated by the card slots 12 and provided with screws Bolt 14, two holes 8 are provided on the upper surfaces of the two composite floor slab bodies 1, and the two pairs of holes 8 are distributed and movably sleeved with two pairs of nuts 9. When connecting on the construction site, the connecting plate 2 is placed on the ground, and the two composite floor slab bodies 1 are clamped on the connecting plate 2. The connecting plate 2 is clamped and limited by two pairs of screws 4 and two groups of limit blocks 7 fixed thereon, and the two pairs of nuts 9 are rotated to fix it. At this time, the two pairs of shear connectors 6 are clamped into a group of limit grooves 10 provided on the two composite floor slab bodies 1. At this time, the connecting ends of the two steel meshes 3 are welded, and then concrete is poured into the connecting gap of the two composite floor slab bodies 1 to ensure the stability of the connection between the structures, which can ensure high precision and consistency and improve the overall construction quality.

[0026] Two groups of limit blocks 7 are fixedly connected to the upper surface of the connecting plate 2, and the two groups of limit blocks 7 are movably connected with the two groups of limit grooves 10 respectively. The inner walls of the two grooves 12 are provided with two holes 11, and the two holes 11 are movably connected with two bolts 14 respectively. When it comes to composite floor bodies 1 of different sizes, the spacing between the two pairs of limit grooves 10 is not fixed, and the spacing between the two shear connectors 6 needs to be adjusted to meet the needs of use. The bolts 14 are rotated to open the limiting fixation between the connecting rod 5 and the shear connector 6. The two middle shear connectors 6 of the two pairs of shear connectors 6 are movably connected with the other two shear connectors 6 through the connecting rods 5 fixed thereon.

[0027] The two middle shear connectors 6 of the two pairs of shear connectors 6 are fixedly connected to connecting rods 5 on the back side, and the two connecting rods 5 are fixedly connected to fixing plates 15 on the back side. The two connecting rods 5 are movably connected to the two slots 12 respectively. A group of holes three 13 are opened on the upper surface of the two connecting rods 5. The two groups of holes three 13 are movably connected to two bolts 14 respectively. After the spacing between the two shear connectors 6 is adjusted according to the needs, they are fixed by bolts 14. The overall operation is simple and flexible. During the construction process, there may be some slight errors in size or alignment, and the adjustable shear connector 6 can compensate for these errors.

[0028] Working principle:

[0029] When connecting on the construction site, place the connecting plate 2 on the ground, clamp the two composite floor slab bodies 1 on the connecting plate 2, and the connecting plate 2 is clamped and limited by two pairs of screws 4 and two groups of limit blocks 7 fixed thereon, and the two pairs of nuts 9 are rotated to fix it. At this time, the two pairs of shear connectors 6 are clamped into a group of limit grooves 10 opened on the two composite floor slab bodies 1. At this time, the connecting ends of the two steel meshes 3 are welded, and then concrete is poured into the connecting gap between the two composite floor slab bodies 1 to ensure the stability of the connection between the structures, which can ensure high precision and consistency, improve the overall construction quality, and then for composite floor slab bodies 1 of different sizes. The spacing between the two pairs of limit grooves 10 is not fixed, and the spacing between the two shear connectors 6 needs to be adjusted to meet the needs of use. The bolts 14 are turned to open the limit fixation between the connecting rod 5 and the shear connector 6. The two shear connectors 6 located in the middle of the two pairs of shear connectors 6 are movably connected with the other two shear connectors 6 through the connecting rods 5 fixed thereon. After the spacing between the two shear connectors 6 is adjusted according to the needs, they are fixed by bolts 14. The overall operation is simple and flexible. During the construction process, there may be some minor errors in size or alignment, and the adjustable shear connector 6 can compensate for these errors.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A truss-free steel bar edge composite floor connector, comprising two composite floor bodies (1), characterized in that: A steel mesh sheet (3) is provided in each of the two composite floor slab bodies (1), two pairs of shear connectors (6) are provided between the two composite floor slab bodies (1), a connecting plate (2) is provided on the lower surface of the composite floor slab body (1), and two pairs of screw rods (4) are fixedly connected to the upper surface of the connecting plate (2); The surfaces of the two pairs of screw rods (4) are both threadedly sleeved with nuts (9), the opposing surfaces of the two composite floor slab bodies (1) are both provided with two pairs of limit grooves (10), the two groups of limit grooves (10) are respectively movably engaged with the two groups of shear connectors (6), and the opposing surfaces of the two shear connectors (6) located at the front and rear sides of the two pairs of shear connectors (6) are both penetrated with a slot (12) and provided with a bolt (14).

2. A truss-free steel bar edge laminated floor connector as claimed in claim 1, characterized in that: The upper surfaces of the two composite floor slab bodies (1) are each provided with two holes (8); Wherein, the two pairs of holes (8) are distributed and movably connected with two pairs of nuts (9).

3. The truss-free steel bar edge laminated floor connector according to claim 1, characterized in that: Two groups of limit blocks (7) are fixedly connected to the upper surface of the connecting plate (2); The two groups of limit blocks (7) are respectively movably engaged with the two groups of limit grooves (10).

4. The truss-free steel bar edge laminated floor connector according to claim 1, characterized in that: The inner walls of the two card slots (12) are each provided with a second hole (11); The two holes (11) are respectively movably connected to the two bolts (14).

5. The truss-free steel bar edge laminated floor connector according to claim 1, characterized in that: The two middle shear connectors (6) in the two pairs of shear connectors (6) are both fixedly connected to connecting rods (5) on their back sides, and the two connecting rods (5) are both fixedly connected to fixing plates (15) on their back sides; The two connecting rods (5) are movably engaged with the two engaging grooves (12) respectively.

6. A truss-free steel bar edge laminated floor connector as claimed in claim 5, characterized in that: A group of three holes (13) are formed on the upper surfaces of the two connecting rods (5); The two groups of holes (13) are respectively movably connected to the two bolts (14).

Images