Concrete slab structure, concrete precast slab and construction method thereof

Abstract

The application relates to a concrete slab structure, a concrete prefabricated slab and a construction method thereof. The concrete prefabricated slab comprises an end plate, an anchoring structure, a steel bar mesh, a matching structure and a concrete pouring body. The anchoring structure is arranged on a first side of the end plate. The steel bar mesh is arranged on the first side of the end plate and is connected with the anchoring structure. The matching structure is arranged on a second side of the end plate and is matched with a connecting piece connecting two adjacent concrete prefabricated slabs. The anchoring structure and the steel bar mesh on the first side of the end plate are both poured into the concrete pouring body. By arranging the anchoring structure and the matching structure on the two sides of the end plate, reliable connection of the two adjacent concrete prefabricated slabs can be realized, the whole structure is subjected to stress, the setting of the steel bar is not needed, the production process of the concrete prefabricated slab is simplified, mechanized operation can be carried out, and the production efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building and bridge engineering, in particular to a concrete slab structure, a concrete precast slab and a construction method thereof. BACKGROUND

[0002] Fabricated concrete structure has the advantages of good product quality, high production efficiency, fast construction speed, small environmental pollution, etc., which is conducive to realizing the standardization and normalization of building and bridge structure construction and improving the economic and social benefits of China's building and transportation industry. With the continuous improvement of sustainable development and energy saving and environmental protection requirements, and the continuous increase of labor cost, building industrialization represented by fabricated concrete structure system has been paid more and more attention, and its application has gradually warmed up. The concrete precast slab is one of the key load-bearing components in the fabricated concrete structure system, which directly bears the vertical load. In related technologies, the concrete precast slab usually has long steel bars (referred to as "mustache bars") extending from the side, and the adjacent two concrete precast slabs are overlapped or welded by the mustache bars to ensure reliable connection between the adjacent components and realize the overall stress of the structure.

[0003] In related technologies, when the mustache bars are made in the factory, holes must be reserved on the side mold, and each horizontal steel bar in the slab must be passed through one end to the other end of the side mold and be blocked to prevent the side from leaking during concrete pouring.

[0004] However, this process requires high precision control and a large amount of manual work, which cannot be mechanized, resulting in low production efficiency of the precast slab and increased production cost. SUMMARY

[0005] Therefore, it is necessary to provide a concrete slab structure, a concrete precast slab and a construction method thereof to solve the problems of low production efficiency and increased production cost of the precast slab caused by the factory precast mustache bars.

[0006] A concrete precast slab, the concrete precast slab comprising:

[0007] an end plate;

[0008] an anchoring structure arranged on a first side of the end plate;

[0009] a steel bar mesh arranged on the first side of the end plate and connected with the anchoring structure;

[0010] a matching structure arranged on a second side of the end plate and matched with a connecting piece connecting adjacent two concrete precast slabs; and

[0011] a concrete pouring body, the anchoring structure and the steel bar mesh on the first side of the end plate being poured in the concrete pouring body.

[0012] In one of the embodiments, the anchoring structure comprises first anchoring steel bars and first rib plates, the first rib plates are arranged on the first side of the end plate, the first anchoring steel bars are arranged on the first rib plates to form a plurality of first limiting parts with the first rib plates, and the first limiting parts are used to limit the connection position of the steel mesh.

[0013] In one of the embodiments, the number of the first rib plates is plural, the first rib plates are arranged along the vertical direction, and the first rib plates are arranged along the length direction of the end plate in sequence.

[0014] An installation hole is arranged on each of the first rib plates, the first anchoring steel bars pass through the first rib plates along the length direction of the end plate in sequence, and each of the first rib plates forms a limiting part with the first anchoring steel bars.

[0015] In one of the embodiments, the matching structure comprises second anchoring steel bars and second rib plates, the second rib plates are arranged on the second side of the end plate, the second anchoring steel bars are arranged on the second rib plates to form a plurality of second limiting parts with the second rib plates, the second limiting parts are used to limit the connection position of the connecting member, and the first limiting parts and the second limiting parts are arranged oppositely along the length direction of the connecting member.

[0016] In one of the embodiments, the second anchoring steel bars and the second rib plates form two second limiting parts along the thickness direction of the concrete prefabricated slab, the first limiting parts and the second limiting parts are arranged one by one, and the second limiting parts are used to be connected with the connecting member one by one.

[0017] In one of the embodiments, the matching structure comprises second rib plates, the second rib plates are arranged horizontally on the end plate, and the second rib plates are used to be connected with the connecting member.

[0018] A concrete slab structure, comprising a connecting body and the above-mentioned concrete prefabricated slab, the connecting body comprises a connecting member, and two ends of the connecting member are connected with the matching structures on the two end plates of the adjacent two concrete prefabricated slabs one by one.

[0019] In one of the embodiments, the steel mesh comprises longitudinal steel bars and transverse steel bars, the transverse steel bars are arranged along the length direction of the end plate, and the connecting member is located on the extension line of the longitudinal steel bars.

[0020] In one of the embodiments, the connecting member comprises first connecting members and second connecting members arranged along the thickness direction of the concrete slab in sequence, and the connecting body further comprises a steel cage, the steel cage is located between the first connecting members and the second connecting members.

[0021] A construction method of a concrete precast slab, the construction method of the concrete precast slab comprising the steps of:

[0022] providing an end plate, providing an anchoring structure on a first side of the end plate, and providing a cooperating structure on a second side of the end plate;

[0023] placing a steel bar mesh on the first side of the end plate, and connecting one end of the steel bar mesh with the anchoring structure;

[0024] pouring concrete on the first side of the end plate to form a concrete casting body, and pouring the anchoring structure and the steel bar mesh into the concrete casting body.

[0025] The concrete slab structure, the concrete precast slab and the construction method thereof, the anchoring structure is used for improving the stability of the connection between the end plate and the concrete casting body on one hand, and is used for cooperating with the steel bar mesh in the concrete casting body for fixing the steel bar mesh on the other hand. The cooperating structure cooperates with the connecting piece, so that the cooperating structures of two adjacent concrete precast slabs are connected, and then the two adjacent concrete precast slabs are connected. That is, by arranging the anchoring structure and the cooperating structure on the two sides of the end plate respectively, the reliable connection of the two adjacent concrete precast slabs can be realized, the overall stress of the structure is realized, the setting of the bar is not needed, the production process of the concrete precast slab is simplified, the mechanized operation can be carried out, and the production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the connecting body connecting two concrete precast slabs in an embodiment.

[0027] Figure 2 It is a structural schematic view of the connecting body connecting two concrete precast slabs in an embodiment. Figure 1 It is a structural schematic view of one of the concrete precast slabs not being poured with concrete in an embodiment.

[0028] Figure 3 It is a structural schematic view of one of the concrete precast slabs not being poured with concrete in another embodiment.

[0029] Reference signs: 100, concrete precast slab; 110, end plate; 120, anchoring structure; 121, first anchoring steel bar; 122, first rib plate; 130, steel bar mesh; 131, longitudinal steel bar; 132, transverse steel bar; 140, cooperating structure; 141, second anchoring steel bar; 142, second rib plate;

[0030] 210, connecting piece; 211, first connecting piece; 212, second connecting piece; 230, steel bar cage;

[0031] 300, base plate. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and with modifications thereof, without departing from the scope of the present application, and it is understood that these specific embodiments are given for purposes of illustration only and not for purposes of limitation.

[0033] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0034] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0035] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless specifically stated and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "on", "first surface" and "upper surface" of the second feature can mean that the first feature is on the normal or inclined first surface of the second feature, or simply means that the first feature is higher in horizontal height than the second feature. The first feature "under", "second surface" and "lower surface" of the second feature can mean that the first feature is under the normal or inclined second surface of the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0038] Referring to Figure 1 An embodiment of the present application provides a concrete prefabricated slab 100. The concrete prefabricated slab 100 comprises an end plate 110, an anchoring structure 120, a steel bar mesh 130, a matching structure 140, and a concrete pouring body. The anchoring structure 120 is arranged on a first side of the end plate 110. The steel bar mesh 130 is arranged on the first side of the end plate 110 and connected with the anchoring structure 120. The matching structure 140 is arranged on a second side of the end plate 110 and used for matching with a connecting piece 210 connecting two adjacent concrete prefabricated slabs 100. The anchoring structure 120 and the steel bar mesh 130 on the first side of the end plate 110 are both poured in the concrete pouring body.

[0039] In the prefabrication in a factory, first, the anchoring structure 120 and the matching structure 140 are arranged on both sides of the end plate 110, then the steel bar mesh 130 is connected with the anchoring structure 120, and finally the concrete is poured on the first side of the end plate 110, so that the anchoring structure 120 and the steel bar mesh 130 are both poured in the concrete pouring body, that is, the concrete prefabricated slab 100 is completed. In the pouring at a construction site, two adjacent concrete prefabricated slabs 100 are directly connected through the connecting piece 210, and then the concrete is poured, so that the two adjacent concrete prefabricated slabs 100 form a complete structure.

[0040] In this embodiment, the anchoring structure 120 serves two purposes: firstly, it enhances the stability of the connection between the end plate 110 and the concrete casting; secondly, it cooperates with the reinforcing mesh 130 within the concrete casting to fix the reinforcing mesh 130. The mating structure 140 mates with the connector 210 that connects two adjacent precast concrete slabs 100, thereby enabling the two adjacent precast concrete slabs 100 to be connected via the connector. In other words, by providing the anchoring structure 120 and the mating structure 140 on both sides of the end plate 110, a reliable connection between two adjacent precast concrete slabs 100 can be achieved, realizing the overall structural load-bearing capacity. This eliminates the need for additional reinforcing bars, simplifies the production process of the precast concrete slabs 100, allows for mechanized operations, and results in high production efficiency.

[0041] In some embodiments, the anchoring structure 120 includes intersecting first anchoring bars 121 and first ribs 122. The first ribs 122 are disposed on the first side of the end plate 110. The first anchoring bars 121 pass through the first ribs 122 to form a plurality of first limiting portions with the first ribs 122. The first limiting portions are used to limit the connection position of the steel mesh 130.

[0042] In this embodiment, the first rib 122 is disposed on the end plate 110, and the first anchoring steel bar 121 passes through the first rib 122. Through the anchoring effect of the first anchoring steel bar 121 in the concrete casting, the connection strength between the concrete casting and the end plate 110 can be improved. At the same time, the first anchoring steel bar 121 passes through the first rib 122 to form multiple limiting parts with the first rib 122. The limiting parts are used to restrict the connection position between the steel mesh 130 and the anchoring structure 120, so that the longitudinal steel bars in the steel mesh 130 in two adjacent precast concrete slabs 100 are located on the same line, thereby ensuring the continuity of force transmission between multiple precast concrete slabs 100.

[0043] In some embodiments, there are multiple first ribs 122, with the surface of the first ribs 122 arranged vertically, and the multiple first ribs 122 arranged sequentially along the length of the end plate 110. Each first rib 122 has a mounting hole, and the first anchoring steel bar 121 passes through the multiple ribs sequentially along the length of the end plate 110. Each first rib 122 and the first anchoring steel bar 121 form a limiting part.

[0044] In actual production, the first rib plate 122 is welded to the end plate 110. One end of the longitudinal steel bar in the reinforcing mesh 130 overlaps with the first anchoring steel bar 121, while simultaneously ensuring that the longitudinal steel bar is close to the first rib plate 122. Therefore, the spacing between two adjacent longitudinal steel bars can be determined by the spacing between adjacent first rib plates 122. During factory prefabrication, due to the considerable length and weight of the longitudinal steel bars in the reinforcing mesh 130, movement is inconvenient, making it difficult to arrange them according to design requirements. Consequently, the longitudinal steel bars in two adjacent precast concrete slabs 100 are difficult to keep in a straight line. In this embodiment, the arrangement of the longitudinal steel bars is transformed into the arrangement of the first rib plate 122. The first rib plate 122 positions the arrangement of multiple longitudinal steel bars along the length of the end plate 110, and the first anchoring steel bar 121 positions the height of the longitudinal steel bars. This allows the longitudinal steel bars in two adjacent precast concrete slabs 100 to be located in a straight line, which is beneficial for the continuity of force transmission between multiple precast concrete slabs 100.

[0045] In another embodiment, the number of first ribs 122 may be at least two, the first ribs 122 being arranged horizontally, and the at least two first ribs 122 being arranged sequentially along the thickness direction of the precast concrete slab 100. Each first rib 122 may have a plurality of mounting holes sequentially formed along the length direction of the end plate 110, and the mounting holes on each rib may be positioned at the same position along the length direction of the end plate 110. The number of first anchoring steel bars 121 may be multiple, and the first anchoring steel bars 121 may sequentially pass through the mounting holes on at least two first ribs 122 along the thickness direction of the precast concrete slab 100.

[0046] In this embodiment, one end of the longitudinal steel bar in the steel mesh 130 is lapped on the first rib plate 122, while the longitudinal steel bar is close to the first anchoring steel bar 121. That is, the spacing between two adjacent longitudinal steel bars can be determined by the spacing between adjacent first anchoring steel bars 121, and the height of the longitudinal steel bar can be determined by the height of the first rib plate 122.

[0047] In some embodiments, the mating structure 140 includes interleaved second anchoring bars 141 and second ribs 142. The second ribs 142 are disposed on the second side of the end plate 110, and the second anchoring bars 141 pass through the second ribs 142 to form a plurality of second limiting portions with the second ribs 142. The second limiting portions are used to limit the connection position of the connector 210. The limiting portions on the mating structure 140 are used to limit the mating position of the connector 210.

[0048] Specifically, the mating structure 140 and the anchoring structure 120 have the same structure. The first limiting part and the second limiting part are arranged opposite to each other along the length direction of the connector 210, so that when the two ends of the connector 210 are mated with the mating structure 140 of two adjacent concrete slabs respectively, the connector 210 can be located on the same straight line with the longitudinal reinforcement in the two adjacent concrete slabs at the same time.

[0049] In some other embodiments, the mating structure 140 differs from the anchoring structure 120. The mating structure 140 includes a second rib 142, which is horizontally disposed on the end plate 110 and is used to connect with the connector 210. Both ends of the connector 210 are welded to the second rib 142, and the height of the connector 210 is limited by the height of the second rib 142.

[0050] Specifically, the anchoring structure 120 may include intersecting first anchoring bars 121 and first ribs 122. Multiple first ribs 122 are arranged vertically along the length of the end plate 110. Each first rib 122 has an installation hole. The first anchoring bars 121 pass through the multiple ribs along the length of the end plate 110, and each first rib 122 forms a limiting part with the first anchoring bar 121. The mating structure 140 includes a second rib 142, which is horizontally arranged on the end plate 110 and used to connect with the connector 210. The height of the second rib 142 is the same as the height of the first anchoring bars 121, ensuring that the connector 210 and the longitudinal bars in the reinforcing mesh 130 are at the same height.

[0051] In some embodiments, the second anchoring steel bar 141 and the second rib plate 142 form two second limiting portions along the thickness direction of the precast concrete slab 100. The first limiting portion and the second limiting portion are provided in a one-to-one correspondence, and the second limiting portion is used to connect with the connector 210 in a one-to-one correspondence.

[0052] That is, the first anchoring steel bar 121 and the first rib plate 122 form two first limiting parts along the thickness direction of the precast concrete slab 100, thereby ensuring that the connector 210 and the longitudinal steel bars in the steel mesh 130 are at the same height.

[0053] An embodiment of this application provides a concrete slab structure, which includes a connector and the aforementioned precast concrete slab 100. The connector includes a connector 210, and the two ends of the connector 210 are respectively connected to the mating structures 140 on the two end plates 110 of two adjacent precast concrete slabs 100 that are close to each other.

[0054] During factory prefabrication, anchoring structures 120 and mating structures 140 are first installed on both sides of the end plate 110. Then, the reinforcing mesh 130 is connected to the anchoring structure 120. Finally, concrete is poured on the first side of the end plate 110, ensuring that both the anchoring structure 120 and the reinforcing mesh 130 are embedded within the concrete casting. During on-site pouring, the two adjacent end plates 110 of the two precast concrete slabs 100 are directly connected using connectors 210. Concrete is then poured between the two adjacent precast concrete slabs 100 to form a complete structure. The two ends of the connectors 210 are connected one-to-one with the mating structures 140 on the two adjacent end plates 110 of the two precast concrete slabs 100, increasing the transverse reinforcement ratio of the wet joint and improving its transverse bending stiffness and bending capacity.

[0055] The reinforcing mesh 130 includes longitudinal reinforcing bars 131 and transverse reinforcing bars 132. The transverse reinforcing bars 132 are parallel to the first anchoring reinforcing bars 121 and are perpendicular to the longitudinal reinforcing bars 131. The connector 210 is located on the extension line of the longitudinal reinforcing bars 131. Specifically, the reinforcing mesh 130 is arranged in two layers: the longitudinal reinforcing bars 131 include an upper layer of longitudinal reinforcing bars 131 and a lower layer of longitudinal reinforcing bars 131, and the transverse reinforcing bars 132 include an upper layer of transverse reinforcing bars 132 and a lower layer of transverse reinforcing bars 132.

[0056] In one embodiment, the transverse reinforcement 132 is located above the longitudinal reinforcement 131. During factory prefabrication, the lower longitudinal reinforcement 131 is first installed, with one end lapped onto the anchoring structure 120 and limited by a limiting part. The lower longitudinal reinforcement 131 is then tied to the first anchoring reinforcement 121 or welded to the first rib 122. The lower transverse reinforcement 132 is then lapped onto the lower longitudinal reinforcement 131 and tied to it. The upper longitudinal reinforcement 131 and upper transverse reinforcement 132 are then installed in the same manner.

[0057] In another embodiment, the lower longitudinal reinforcement 131 is located below the lower transverse reinforcement 132, and the upper longitudinal reinforcement 131 is located above the upper transverse reinforcement 132. The lower longitudinal reinforcement 131 is close to the lower surface of the precast concrete slab 100, and the upper longitudinal reinforcement 131 is close to the upper surface of the precast concrete slab 100, which helps to improve the stress efficiency of the precast concrete slab 100.

[0058] The connector 210 includes a first connector 211 and a second connector 212 arranged sequentially along the thickness direction of the concrete slab. The connector also includes a reinforcing cage 230, which is located between the first connector 211 and the second connector 212. The first connector 211 and the second connector 212 are used to restrain the reinforcing cage 230. The reinforcing cage 230 can be selectively spot-welded or tied to the connector 210, resulting in less on-site work and convenient construction.

[0059] This application provides a construction method for a precast concrete slab 100 according to an embodiment. The construction method for the precast concrete slab 100 includes the following steps:

[0060] An end plate 110 is provided, on which anchoring structures 120 and mating structures 140 are respectively provided. The end plate 110 can be directly used as the side mold of the precast concrete slab 100, eliminating the need for separate side molds, simplifying the production process, greatly improving construction efficiency, and ensuring construction quality. Furthermore, by providing anchoring structures 120 and mating structures 140 on both sides of the end plate 110, a reliable connection between two adjacent precast concrete slabs 100 can be achieved, realizing the overall structural load-bearing capacity. The absence of reinforcing bars simplifies the production process of the precast concrete slab 100, allowing for mechanized operations and high production efficiency.

[0061] A reinforcing mesh 130 is provided, with one end of the mesh connected to the anchoring structure 120. The reinforcing mesh 130 includes longitudinal reinforcing bars 131 and transverse reinforcing bars 132. The transverse reinforcing bars 132 are parallel to the first anchoring reinforcing bars 121 and are perpendicular to the longitudinal reinforcing bars 131. The longitudinal reinforcing bars 131 are either tied to the first anchoring reinforcing bars 121 or welded to the first rib plate 122.

[0062] Concrete is poured on the first side of the end plate 110 to form a concrete casting body, and the anchoring structure 120 and the steel mesh 130 are poured into the concrete casting body.

[0063] In some embodiments, the construction method for a concrete slab structure includes the following steps:

[0064] 100mm precast concrete slab;

[0065] Place two adjacent precast concrete slabs 100 on the base plate 300;

[0066] The mating structure 140 on one precast concrete slab is connected to the mating structure 140 on another precast concrete slab via the first connector 211.

[0067] A steel cage 230 is installed on the lower connector 210;

[0068] The mating structure 140 on one precast concrete slab is connected to the mating structure 140 on another precast concrete slab via the second connector 212.

[0069] Concrete is poured between two adjacent precast concrete slabs 100.

[0070] The base plate 300 can be a wooden formwork or the upper flange of a steel beam with shear-resistant connectors. When the base plate 300 is a wooden formwork, it is removed after pouring. When the base plate 300 is the upper flange of a steel beam with shear-resistant connectors, the precast concrete slab 100 is directly connected to the upper flange of the steel beam and becomes part of the steel beam.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A precast concrete slab, characterized in that, The precast concrete slab includes: End plate; An anchoring structure includes intersecting first anchoring bars and first ribs, the first ribs being welded to a first side of the end plate, and the first anchoring bars passing through the first ribs to form a plurality of first limiting portions with the first ribs. A reinforcing mesh is provided on the first side of the end plate and connected to the anchoring structure. One end of the longitudinal reinforcing bar in the reinforcing mesh overlaps the first anchoring reinforcing bar. The longitudinal reinforcing bar is close to the first rib plate. The first limiting part is used to limit the connection position of the reinforcing mesh. The mating structure includes interlocking second anchoring bars and second ribs. The second ribs are disposed on the second side of the end plate for mating with connectors that connect two adjacent precast concrete slabs. The second anchoring bars pass through the second ribs to form a plurality of second limiting portions, which restrict the connection position of the connectors. The first and second limiting portions are arranged opposite to each other along the length of the connectors. The concrete casting body, the anchoring structure and the steel mesh on the first side of the end plate are both cast into the concrete casting body.

2. The precast concrete slab according to claim 1, characterized in that, The number of first ribs is multiple, the first ribs are arranged in a vertical direction, and the multiple first ribs are arranged sequentially along the length direction of the end plate; Each of the first ribs has an installation hole, and the first anchoring steel bar passes through multiple ribs sequentially along the length of the end plate. Each of the first ribs and the first anchoring steel bar form a limiting part.

3. The precast concrete slab according to claim 1, characterized in that, The second anchoring steel bar and the second rib plate form two second limiting parts along the thickness direction of the precast concrete slab. The first limiting part and the second limiting part are provided in a one-to-one correspondence, and the second limiting part is used to connect with the connector in a one-to-one correspondence.

4. The precast concrete slab according to claim 1, characterized in that, The mating structure includes a second rib plate, which is horizontally disposed on the end plate and is used to connect with the connector.

5. A concrete slab structure, characterized in that, The concrete slab structure includes a connector and a precast concrete slab as described in any one of claims 1-4. The connector includes a connector, and the two ends of the connector are respectively connected to the mating structures on the two end plates of two adjacent precast concrete slabs that are close to each other.

6. The concrete slab structure according to claim 5, characterized in that, The reinforcing mesh includes longitudinal reinforcing bars and transverse reinforcing bars. The transverse reinforcing bars are arranged along the length of the end plate, and the connector is located on the extension line of the longitudinal reinforcing bars.

7. The concrete slab structure according to claim 6, characterized in that, The connector includes a first connector and a second connector arranged sequentially along the thickness direction of the concrete slab. The connector also includes a reinforcing cage located between the first connector and the second connector.

8. A construction method for a precast concrete slab as described in any one of claims 1-4, characterized in that, The construction method for the precast concrete slab includes the following steps: An end plate is provided, an anchoring structure is provided on a first side of the end plate, and a mating structure is provided on a second side of the end plate; Place the steel mesh on the first side of the end plate and connect one end of the steel mesh to the anchoring structure; Concrete is poured on the first side of the end plate to form a concrete casting body, and the anchoring structure and the steel mesh are poured into the concrete casting body.

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