High-strength prefabricated concrete composite floor slab

Abstract

The utility model discloses a high-strength prefabricated concrete composite floor slab which comprises a concrete slab body, a steel bar supporting frame is arranged in the concrete slab body, a first connecting plate is arranged on one side of the concrete slab body, and a second connecting plate is arranged on the side, away from the first connecting plate, of the concrete slab body. First limiting grooves are formed in the two ends of the side, close to the second connecting plate, of the concrete slab body correspondingly, second limiting grooves matched with the first limiting grooves are formed in the first connecting plate, fixing plates are arranged in the first limiting grooves and the second limiting grooves, and first mounting holes are formed in the four corners of each fixing plate correspondingly; and the fixing plate is fixedly connected with the first mounting hole through a bolt. The composite floor slab is simple in structure, high in structural strength, convenient to connect with each other, good in connecting end stabilizing effect and capable of effectively improving the practicability of the composite floor slab.

Description

Technical Field

[0001] The utility model relates to the technical field of laminated floor slabs, in particular to a high-strength prefabricated concrete laminated floor slab. Background Art

[0002] Floor slabs can be divided into the following categories according to different classification methods: according to different construction processes, they can be divided into three categories: assembled integral type, cast-in-place type and prefabricated assembled type; according to different materials used, they can be divided into four categories: reinforced concrete floor slabs, wooden floor slabs, corrugated steel plate composite floor slabs and brick arch floor slabs. Precast concrete composite floor slabs are a better structural form that combines precast and cast-in-place concrete. Composite floor slabs have the advantages of high rigidity, good crack resistance, no increase in steel consumption, and saving formwork. Existing precast concrete composite floor slabs do not have splicing structures or the splicing assembly is relatively complicated and the strength of the splicing is poor, which is not conducive to the use of composite floor slabs. For this reason, we propose a high-strength precast concrete composite floor slab. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a high-strength precast concrete composite floor slab. The utility model solves the problem that the existing precast concrete composite floor slabs have no splicing structure or the splicing assembly is relatively complicated and the strength of the splicing is poor, which is not conducive to the use of the composite floor slab.

[0004] A high-strength precast concrete composite floor slab in the utility model comprises a concrete slab body, wherein the concrete slab body is provided with a steel support frame, a first connecting plate is provided on one side of the concrete slab body, a second connecting plate is provided on the side of the concrete slab body away from the first connecting plate, first limiting grooves are provided at both ends of the side of the concrete slab body close to the second connecting plate, a second limiting groove matching the first limiting groove is provided on the first connecting plate, fixing plates are provided in the first limiting groove and the second limiting groove, first mounting holes are provided at four corners of the fixing plate, and the fixing plate is fixedly connected to the first mounting hole by bolts.

[0005] In the above scheme, the steel bar support frame includes a steel bar ring, and the steel bar ring is provided in plurality and arranged equidistantly, and a plurality of steel bars arranged in a matrix are provided in the steel bar ring.

[0006] In the above solution, the first connecting plate is provided with a plurality of second mounting holes arranged at equal distances, and the second connecting plate is provided with a plurality of third mounting holes arranged at equal distances.

[0007] In the above solution, both sides of the first limiting groove and the second limiting groove are provided with clamping grooves, and a clamping plate matching the first limiting groove and the second limiting groove is provided under the fixing plate.

[0008] In the above solution, a plurality of grooves arranged at equal distances are provided on the upper end of the concrete slab.

[0009] The advantages and beneficial effects of the utility model are as follows: the utility model provides a high-strength precast concrete composite floor slab, the steel support frame is the supporting structure of the concrete slab body as a whole, the steel support frame effectively increases the overall structural strength of the composite floor slab, the first connecting plate and the second connecting plate can be fixedly connected by bolts inserted into the second mounting hole and the third mounting hole, the fixing plate can be clamped into the first limiting groove and the second limiting groove, the clamping plate is inserted into the first limiting groove and the second limiting groove, and the two adjacent concrete slab bodies can be accurately placed through the mutual cooperation between the clamping plate and the first limiting groove and the second limiting groove, and the two concrete slab bodies can be stably connected through the setting of the fixing plate. This kind of composite floor slab has a simple structure, high structural strength, is easy to connect with each other, has a good stabilizing effect at the connecting end, and effectively improves the practicality of the composite floor slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure after splicing of the utility model;

[0013] Figure 3 This is a schematic diagram of the steel bar support frame structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the fixed plate structure of the utility model.

[0015] In the figure: 1, concrete slab 2, steel bar support frame 21, steel bar ring 22, steel bar

[0016] 3, first connecting plate 4, second connecting plate 5, first limiting groove 6, second limiting groove 7, fixing plate 8, first mounting hole 9, second mounting hole 10, third mounting hole

[0017] 11. slot 12. clamping plate 13. groove 14. bolt. DETAILED DESCRIPTION

[0018] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] like Figure 1-4 As shown, the utility model is a high-strength precast concrete composite floor, including a concrete slab 1, wherein a steel bar support frame 2 is arranged in the concrete slab 1, and the steel bar support frame 2 is a supporting structure of the whole concrete slab 1, and the steel bar support frame 2 effectively increases the overall structural strength of the composite floor, a first connecting plate 3 is arranged on one side of the concrete slab 1, and a second connecting plate 4 is arranged on the side of the concrete slab 1 away from the first connecting plate 3, when two concrete slabs 1 are spliced, the first connecting plate 3 can be placed above the second connecting plate 4, and first limiting grooves 5 are arranged at both ends of the side of the concrete slab 1 close to the second connecting plate 4, and a second limiting groove 6 matching the first limiting groove 5 is arranged on the first connecting plate 3, and a fixing plate 7 is arranged in the first limiting groove 5 and the second limiting groove 6, and the fixing plate 7 is provided with a first mounting hole 8 at four corners, and the fixing plate 7 is fixedly connected to the first mounting hole 8 by bolts 14, and the fixing plate 7 can be clamped in the first limiting groove 5 and the second limiting groove 6, and the two concrete slabs 1 can be stably connected by the setting of the fixing plate 7.

[0020] The steel bar support frame 2 includes a steel bar ring 21, which is provided with a plurality of steel bar rings 21 and arranged equidistantly. A plurality of steel bars 22 arranged in a matrix are provided in the steel bar ring 21, and the contact surface between the steel bar ring 21 and the steel bars 22 is fixed by welding or steel wire binding.

[0021] The first connecting plate 3 is provided with a plurality of second mounting holes 9 arranged at equal intervals, and the second connecting plate 4 is provided with a plurality of third mounting holes 10 arranged at equal intervals. The first connecting plate 3 and the second connecting plate 4 can be fixedly connected by bolts 14 inserted into the second mounting holes 9 and the third mounting holes 10.

[0022] A card slot 11 is provided on both sides of the first limiting groove 5 and the second limiting groove 6, and a card plate 12 matching the first limiting groove 5 and the second limiting groove 6 is provided under the fixing plate 7. The card plate 12 is inserted into the first limiting groove 5 and the second limiting groove 6. Through the mutual cooperation between the card plate 12 and the first limiting groove 5 and the second limiting groove 6, the two adjacent concrete slabs 1 can be placed accurately.

[0023] The upper end of the concrete slab body 1 is provided with a plurality of grooves 13 arranged at equal distances. The arrangement of the grooves 13 enables the composite floor slab to have better adhesion during surface treatment.

[0024] Specifically, in the utility model, the steel support frame 2 is the overall supporting structure of the concrete slab 1. The steel support frame 2 effectively increases the overall structural strength of the composite floor. When the two concrete slabs 1 are spliced, the first connecting plate 3 can be placed above the second connecting plate 4. The first connecting plate 3 and the second connecting plate 4 can be fixedly connected by bolts 14 inserted into the second mounting holes 9 and the third mounting holes 10. The fixing plate 7 can be clamped in the first limiting groove 5 and the second limiting groove 6. At the same time, the clamping plate 12 is inserted in the first limiting groove 5 and the second limiting groove 6. Through the mutual cooperation between the clamping plate 12 and the first limiting groove 5 and the second limiting groove 6, the two adjacent concrete slabs 1 can be accurately placed. Through the setting of the fixing plate 7, the two concrete slabs 1 can be stably connected.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength precast concrete composite floor slab, comprising a concrete slab body (1), characterized in that: A steel bar support frame (2) is provided in the concrete slab body (1), a first connecting plate (3) is provided on one side of the concrete slab body (1), a second connecting plate (4) is provided on the side of the concrete slab body (1) away from the first connecting plate (3), first limiting grooves (5) are provided at both ends of the side of the concrete slab body (1) close to the second connecting plate (4), a second limiting groove (6) matching the first limiting groove (5) is provided on the first connecting plate (3), a fixing plate (7) is provided in the first limiting groove (5) and the second limiting groove (6), four corners of the fixing plate (7) are provided with first mounting holes (8), and the fixing plate (7) is fixedly connected to the first mounting hole (8) by bolts (14).

2. A high-strength precast concrete composite floor slab according to claim 1, characterized in that: The steel bar support frame (2) comprises a steel bar ring (21), wherein a plurality of the steel bar rings (21) are arranged equidistantly, and a plurality of steel bars (22) arranged in a matrix are arranged inside the steel bar ring (21).

3. The high-strength precast concrete composite floor slab according to claim 1, characterized in that: The first connecting plate (3) is provided with a plurality of second mounting holes (9) arranged at equal distances, and the second connecting plate (4) is provided with a plurality of third mounting holes (10) arranged at equal distances.

4. The high-strength precast concrete composite floor slab according to claim 1, characterized in that: The first limiting groove (5) and the second limiting groove (6) are both provided with clamping grooves (11) on both sides, and a clamping plate (12) matching the first limiting groove (5) and the second limiting groove (6) is provided below the fixing plate (7).

5. The high-strength precast concrete composite floor slab according to claim 1, characterized in that: The upper end of the concrete slab (1) is provided with a plurality of grooves (13) arranged at equal distances.

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