Prefabricated floor slab connecting piece

Abstract

The utility model discloses a prefabricated floor slab connecting piece, belongs to the technical field of building connection, and aims to solve the technical problem that in the prior art, wet connection or dry connection is independently adopted between prefabricated floor slabs, so that construction is inconvenient or the connection strength is limited. The prefabricated floor slab connecting piece comprises a connecting bottom supporting plate and an anti-falling piece. The connecting ends of the two prefabricated floor slab bodies are placed on the two sides of the top of the connecting bottom supporting plate, the reserved steel bars of the connecting ends of the prefabricated floor slab bodies face the side of the middle of the connecting bottom supporting plate, and concrete is poured between the two prefabricated floor slab bodies for wet connection. According to the prefabricated floor slab connecting piece, wet-type connection and dry-type connection are combined, the two prefabricated floor slab main bodies preliminarily form a whole through concrete pouring in the wet-type connection, the connecting bottom supporting plates and the prefabricated floor slab main bodies are tightly connected and fixed through the anti-disengaging pieces in the dry-type connection, and the connecting strength and rigidity between the prefabricated floor slab main bodies are greatly improved; and the requirements of high-rise buildings or large-span buildings on structural performance can be met.

Description

Technical Field

[0001] This utility model belongs to the field of building connection technology, specifically relating to a precast floor slab connector. Background Technology

[0002] With the rapid development of industrialized construction, precast component technology has been widely applied, and precast floor slabs, as an important type of precast component, play a crucial role in various building structures. Precast floor slabs are typically produced in factories in a standardized manner, offering advantages such as precise dimensions and stable quality. On-site construction can be completed simply by hoisting and assembling them, significantly shortening the construction cycle and improving construction efficiency.

[0003] However, the connection between precast floor slabs has always been a key factor restricting the structural performance of precast buildings. Currently, the commonly used connection methods for precast floor slabs are mainly wet connections and dry connections. Wet connections generally involve pre-reserving reinforcing bars in the precast floor slabs, and then lapping or welding the pre-reserved reinforcing bars of adjacent floor slabs before pouring concrete. Although this provides good integrity and seismic performance, it involves a lot of wet work on site, a long construction period, and is greatly affected by environmental factors, and the connection nodes are prone to quality problems such as cracks. Dry connections, on the other hand, connect precast floor slabs using mechanical connectors. This method is faster and involves less wet work, but some connectors have limited connection strength and stiffness, making it difficult to meet the structural requirements of high-rise or large-span buildings. Furthermore, it requires high installation precision and has poor versatility.

[0004] Therefore, this utility model provides a precast floor slab connector that combines wet and dry connection methods to solve the problems existing in the current connection methods. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a precast floor slab connector, which aims to solve the technical problems of inconvenient construction or limited connection strength when using wet or dry connections between precast floor slabs in the existing technology.

[0006] Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a precast floor slab connector, specifically applied to the connection between two precast floor slab bodies. The connecting end of the precast floor slab body should have reserved reinforcing bars, including a connecting base plate and anti-detachment components. The connecting ends of the two precast floor slab bodies rest on the top two sides of the connecting base plate, with the reserved reinforcing bars at the connecting ends of the precast floor slab bodies facing towards the middle of the connecting base plate. Concrete is poured between the two precast floor slab bodies for wet connection. Multiple anti-detachment components are provided, distributed on both sides of the connecting base plate, and the connecting base plate is connected and fixed to the two precast floor slab bodies through the anti-detachment components.

[0008] Preferably, the top two ends of the connecting base plate are provided with side plates, which limit the two sides of the precast floor slab body.

[0009] Preferably, a reinforcing plate is connected between the side wall of the side plate and the upper surface of the connecting base plate, and the reinforcing plate is configured as a triangular structure.

[0010] Preferably, a reinforcing strip is provided on the upper surface of the connecting base plate, the reinforcing strip is arranged along the width direction of the connecting base plate, and multiple reinforcing strips are arranged side by side.

[0011] Preferably, the upper surface of the connecting base plate is provided with pillow platforms on both sides, the pillow platforms are arranged along the length direction of the connecting base plate, and the precast floor slab body is placed on the pillow platforms.

[0012] Preferably, the material of the connecting base plate and the side plate is steel plate.

[0013] Preferably, the anti-detachment component includes a pin, which is vertically inserted at the position where the base plate is provided on both sides. A lower stop plate is provided at the bottom end of the pin, and the top end of the pin penetrates the main body of the precast floor slab and is connected to a stud. A nut is threaded on the stud.

[0014] Preferably, through holes for pins to pass through are provided on both sides of the connecting base plate and on the precast floor slab body, and grooves are provided on both sides of the bottom of the connecting base plate at positions corresponding to the through holes, and the lower baffle plate is fitted into the grooves.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model combines wet connection and dry connection. The wet connection uses concrete pouring to initially form a whole from two precast floor slabs. The dry connection uses anti-detachment components to tightly connect and fix the connecting base plate to the precast floor slab body, which greatly improves the connection strength and rigidity between the precast floor slab bodies and can meet the structural performance requirements of high-rise buildings or large-span buildings.

[0018] In this invention, the precast floor slab is first placed on the connecting base plate, and then wet and dry connection installation operations are performed. Compared with the traditional wet connection method, this reduces tedious wet operations such as on-site rebar tying and formwork erection, shortens the construction cycle, and improves construction efficiency.

[0019] In this invention, the side plates on the connecting base plate limit the precast floor slab body to prevent lateral displacement; the reinforcing plate strengthens the connection between the side plates and the connecting base plate; the support platform provides stable support for the precast floor slab body; and the reinforcing strips improve the overall strength of the connecting base plate. These structures work together to ensure the overall stability and reliability of the precast floor slab connectors, reducing the possibility of quality problems such as cracks and loosening at the connection points. Attached image description:

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention applied to the connection of the main body of precast floor slabs;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the anti-detachment component in this utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting base plate in this utility model.

[0025] The markings in the attached diagram are as follows: 1. Connecting base plate; 2. Side plate; 3. Precast floor slab main body; 4. Reserved steel bar; 5. Anti-detachment component; 6. Reinforcing plate; 7. Pillar platform; 8. Reinforcing strip; 9. Pin; 10. Lower stop plate; 11. Stud; 12. Nut; 13. Through hole; 14. Groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This embodiment provides a precast floor slab connector, the structural diagram of which is shown below. Figures 1-4 As shown, it includes components such as a connecting base plate 1, side plate 2, anti-detachment component 5, reinforcing plate 6, pillow base 7, reinforcing strip 8, pin 9, lower baffle plate 10, stud 11, and nut 12.

[0028] In this embodiment, when installing the precast floor slab body 3, the connecting base plate 1 is first placed in a predetermined position. Side plates 2 are provided at both ends of the top of the connecting base plate 1. The side plates 2 limit the movement of the two sides of the precast floor slab body 3, preventing lateral displacement during installation. A reinforcing plate 6 connects the side wall of the side plate 2 to the upper surface of the connecting base plate 1. The reinforcing plate 6 is designed with a triangular structure, enhancing the connection strength and stability between the side plate 2 and the connecting base plate 1.

[0029] Furthermore, a support platform 7 is provided on the upper surface of the connecting base plate 1. The support platform 7 is arranged along the length direction of the connecting base plate 1, and the connecting end of the precast floor slab body 3 rests on the support platform 7. At the same time, a reinforcing strip 8 is also provided on the upper surface of the connecting base plate 1. The reinforcing strip 8 is arranged along the width direction of the connecting base plate 1, and multiple reinforcing strips 8 are arranged side by side, which further improves the overall strength of the connecting base plate 1.

[0030] In a further embodiment, the connecting ends of the precast floor slab bodies 3 should have reserved reinforcing bars 4. The connecting ends of the two precast floor slab bodies 3 are placed on the top sides of the connecting base plate 1, with the reserved reinforcing bars 4 facing the middle side of the connecting base plate 1. Then, concrete is poured between the two precast floor slab bodies 3 for wet connection, so that the two precast floor slab bodies 3 initially form a whole under the action of concrete.

[0031] In this embodiment, multiple anti-detachment components 5 are provided, distributed on both sides of the connecting base plate 1. Each anti-detachment component 5 includes a pin 9, which is vertically inserted at the positions where the base plate 1 has support platforms 7 on both sides. Through holes 13 are provided on both sides of the connecting base plate 1 and the precast floor slab body 3 for the pin 9 to pass through. Grooves 14 are provided on both sides of the bottom of the connecting base plate 1 at positions corresponding to the through holes 13. A lower stop plate 10 is provided at the bottom end of the pin 9, which fits into the groove 14. The top end of the pin 9 penetrates the precast floor slab body 3 and is connected to a stud 11, with a nut 12 threaded onto the stud 11. By tightening the nut 12, the connecting base plate 1 is connected and fixed to the two precast floor slab bodies 3, achieving a dry connection and further enhancing the connection strength and stability between the precast floor slab bodies 3.

[0032] Working principle:

[0033] The precast floor slab connector of this utility model achieves a reliable connection between the main bodies 3 of the precast floor slabs by combining wet connection and dry connection.

[0034] Wet connection section: After the connecting ends of the two precast floor slabs 3 are placed on the top sides of the connecting base plate 1, the reserved steel bars 4 at the connecting ends of the two precast floor slabs 3 are lapped or welded, and then concrete is poured between the two precast floor slabs 3. The reinforcing strip 8 improves the connection effect of the concrete, and the bolster 7 can limit and block the poured concrete. After the concrete solidifies, the two precast floor slabs 3 are initially connected into a whole, providing better integrity and seismic performance, so that the precast floor slabs 3 can work together when bearing loads.

[0035] Dry connection: The pin 9 of the anti-detachment component 5 passes through the through hole 13 on the connecting base plate 1 and the precast floor slab body 3. The lower baffle plate 10 is fitted with the groove 14 at the bottom of the connecting base plate 1. The stud 11 passes through the precast floor slab body 3 and is fitted with a nut 12 and tightened. In this way, the connecting base plate 1 is tightly connected and fixed to the two precast floor slab bodies 3, which enhances the strength and rigidity of the connection and prevents the precast floor slab bodies 3 from loosening or detaching during use.

[0036] Meanwhile, the side plate 2 on the connecting base plate 1 limits the two sides of the precast floor slab body 3, the reinforcing plate 6 strengthens the connection between the side plate 2 and the connecting base plate 1, the bolster 7 provides stable support for the precast floor slab body 3, and the reinforcing strip 8 improves the overall strength of the connecting base plate 1. These structures work together to ensure the overall performance and stability of the precast floor slab connectors.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated floor slab connecting piece, particularly for connecting two prefabricated floor slab bodies (3), the connecting ends of which should have reserved steel bars (4), characterized in that, include: Connect the bottom support plate (1), and place the connecting ends of the two precast floor slab bodies (3) on the top two sides of the connecting bottom support plate (1). The reserved steel bars (4) of the connecting ends of the precast floor slab bodies (3) face the middle side of the connecting bottom support plate (1). Pour concrete between the two precast floor slab bodies (3) for wet connection. Anti-detachment component (5), multiple anti-detachment components (5) are provided, and multiple anti-detachment components (5) are distributed on both sides of the connecting bottom support plate (1). The connecting bottom support plate (1) is connected and fixed to the two precast floor slab bodies (3) through the anti-detachment components (5).

2. A precast floor panel connector according to claim 1, wherein The connecting base plate (1) has side plates (2) at both ends of its top, and the side plates (2) limit the two sides of the precast floor slab body (3).

3. A precast floor slab connector according to claim 2, characterized in that, A reinforcing plate (6) is connected between the side wall of the side plate (2) and the upper surface of the connecting base plate (1), and the reinforcing plate (6) is configured as a triangular structure.

4. A precast floor slab connector according to claim 1, characterized in that, The upper surface of the connecting base plate (1) is provided with reinforcing strips (8), which are arranged along the width direction of the connecting base plate (1), and multiple reinforcing strips (8) are arranged side by side.

5. A precast floor slab connector according to claim 1, characterized in that, Pillow platforms (7) are provided on both sides of the upper surface of the connecting base plate (1). The pillow platforms (7) are arranged along the length direction of the connecting base plate (1), and the precast floor slab body (3) is placed on the pillow platforms (7).

6. A precast floor slab connector according to claim 1, characterized in that, The connecting base plate (1) and side plate (2) are made of steel plate.

7. A precast floor slab connector according to claim 5, characterized in that, The anti-detachment component (5) includes a pin (9), which is vertically inserted at the position where the base plate (1) is provided with a pillow platform (7) on both sides. The bottom end of the pin (9) is provided with a lower baffle plate (10). The top end of the pin (9) penetrates the precast floor slab body (3) and is connected to a stud (11). A nut (12) is threaded on the stud (11).

8. A precast floor slab connector according to claim 7, characterized in that, The connecting base plate (1) has through holes (13) on both sides and the precast floor slab body (3) for the pin column (9) to pass through. The connecting base plate (1) has grooves (14) at the positions corresponding to the through holes (13) on both sides of the bottom. The lower baffle plate (10) fits into the grooves (14).

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