Fabricated precast concrete wallboard

Abstract

The utility model discloses an assembly type precast concrete wallboard which comprises a reinforced concrete wall body, the left side and the right side of the reinforced concrete wall body are respectively provided with a pouring reserved area in a concave mode, and a plurality of layers of butt joint steel bar rings which are respectively of a closed-loop structure are respectively embedded in the left side and the right side of the reinforced concrete wall body. At least part of ring bodies of the butt-joint steel bar rings are exposed out of the reinforced concrete wall body and located in the pouring reserved area; a slurry baffle is formed on the reinforced concrete wall body and located on the outer side portion of the pouring reserved area. According to the utility model, rapid and reliable connection with an adjacent wall body is realized, and the assembly is simple and reliable; due to the fact that the slurry blocking plate is formed on the outer side portion of the pouring reserved area, a scaffold and a packaging formwork do not need to be erected on the outer side of the wall body during pouring operation, and only the formwork is packaged on the inner side of the wall body, in this way, the workload of erecting the scaffold and disassembling the formwork on site is greatly reduced, the construction efficiency is greatly improved, and the construction period is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to an assembled prefabricated concrete wall panel. Background Art

[0002] Reinforced concrete panels are processed in prefabrication plants (yards) or construction sites for building assembly, referred to as wall panels or sidings. Using prefabricated concrete wall panels to build assembled large-panel buildings can improve the degree of factory-based and mechanized construction, reduce on-site wet operations, save on-site labor, overcome seasonal influences, and shorten the construction period.

[0003] The conventional method of connecting prefabricated exterior walls is to hoist the prefabricated walls into place, erect scaffolding on site, and then tie vertical steel bars to the transverse steel bars extending from the adjacent sides of the two prefabricated walls to form a steel cage. Then, encapsulation formwork is erected on the front and back sides of the junction of the two prefabricated walls. After erecting the formwork, concrete is poured to form cast-in-place structural columns. The cast-in-place structural columns connect the two prefabricated walls into one, and the formwork is subsequently removed.

[0004] This type of precast concrete exterior wall and construction method has the following problems: (1) It is necessary to set up scaffolds on both sides of the wall and encapsulate the casting formwork, which requires a large amount of scaffolding support, formwork installation and removal, making the operation difficult and the construction period long. (2) The precast concrete wall is prefabricated with transverse steel bars extending outward. On the one hand, the steel bars extending outward are inconvenient to transport, and on the other hand, the single steel bars extending outward are easily deformed by stress, and it is time-consuming and laborious to tie the steel bars on site. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an assembled prefabricated concrete wall panel which is convenient for assembly and connection with adjacent walls and does not require a packaging template on the outer side of the wall.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: an assembled precast concrete wall panel, including a reinforced concrete wall body, the left and right sides of the reinforced concrete wall body are respectively recessed with a casting reserved area, the left and right sides of the reinforced concrete wall body are respectively pre-embedded with multiple layers of butt steel rings in a closed-loop structure, at least part of the butt steel rings are exposed from the reinforced concrete wall body and are located in the casting reserved area; a slurry retaining plate is formed on the reinforced concrete wall body at the outer side of the casting reserved area.

[0007] As a preferred technical solution, a wall sealing groove is concavely arranged on the end surface of the slurry baffle.

[0008] As a preferred technical solution, a grouting sleeve is pre-embedded at the bottom of the reinforced concrete wall body.

[0009] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0010] (1) The left and right sides of the reinforced concrete wall body are respectively provided with a concave casting reserved area, and the left and right sides of the reinforced concrete wall body are respectively pre-buried with multiple layers of butt steel rings in a closed loop structure, at least part of the butt steel rings are exposed from the reinforced concrete wall body and are located in the casting reserved area; a slurry retaining plate is formed on the reinforced concrete wall body at the outer side of the casting reserved area; in this way, during assembly construction, the butt steel rings are crossed and overlapped with the butt steel rings of the adjacent wall, and then vertical steel bars are inserted into the overlapping butt steel rings to form a grid skeleton structure connecting the adjacent walls, and then concrete is poured to achieve rapid and reliable connection of the adjacent walls, and the assembly is simple and reliable; at the same time, since the slurry retaining plate is formed on the outer side of the casting reserved area, there is no need to set up scaffolding and encapsulate the formwork on the outer side of the wall during the casting operation, and only the formwork needs to be encapsulated on the inner side of the wall, which greatly reduces the workload of setting up scaffolding and disassembling formwork on site, greatly improves construction efficiency, and shortens the construction period.

[0011] (2) A wall sealing groove is concavely arranged on the end surface of the slurry retaining plate. The wall sealing groove is arranged to facilitate the placement of sealing strips, thereby avoiding leakage during pouring and improving the waterproof sealing effect between walls. On the other hand, it is convenient to retain the assembly gap between adjacent walls, thereby avoiding the inability to assemble adjacent walls due to interference fit, thereby reducing the difficulty of assembling adjacent walls.

[0012] (3) The butt-jointed steel bar ring is a closed-loop structure, which is convenient for transportation and not easily deformed by stress. When butt-jointed with the adjacent wall, it is easy to quickly cross to an overlapping state, and it is convenient to insert vertical steel bars, which is conducive to improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0016] Figure 3 It is a schematic cross-sectional structural diagram of a reinforced concrete wall body in an embodiment of the utility model;

[0017] Figure 4 It is a state reference diagram of the assembled precast concrete wall panel in the embodiment of the utility model when the butt-jointed steel bar rings of the adjacent wall are aligned;

[0018] Figure 5 It is a reference diagram of the state when the butt-jointed steel bar rings of the assembled prefabricated concrete wall panel and the adjacent wall in the embodiment of the utility model cross and overlap. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0020] like Figure 1 and Figure 2 As shown, the assembled prefabricated concrete wall panel includes a reinforced concrete wall body 11, and the left and right sides of the reinforced concrete wall body 11 are respectively recessed with a pouring reserved area 12, and the left and right sides of the reinforced concrete wall body 11 are respectively pre-buried with multiple layers of butt steel rings 13 in a closed-loop structure, and at least part of the butt steel rings 13 are exposed from the reinforced concrete wall body 11 and are located in the pouring reserved area 12; because the butt steel rings 13 are in a closed-loop structure, they are easy to transport and not easily deformed by force, and when docking with adjacent walls, it is easy to quickly cross to an overlapping state, and it is convenient to insert vertical steel bars, which is conducive to improving construction efficiency. A slurry retaining plate 14 is formed on the outer side of the pouring reserved area 12 on the reinforced concrete wall body 11, so that there is no need to set up scaffolding and encapsulation formwork on the outside of the wall during the pouring operation.

[0021] The end surface of the slurry retaining plate 14 is concavely provided with a wall sealing groove 141. The wall sealing groove 141 is provided to facilitate placement of a sealing strip (water-expandable strip) to avoid slurry leakage during pouring and improve the waterproof sealing effect between walls. On the other hand, it is convenient to retain the assembly gap between adjacent walls to avoid the adjacent walls being unable to be assembled due to interference fit, thereby reducing the difficulty of assembly between adjacent walls.

[0022] refer to Figure 3 A grouting sleeve 15 is pre-buried at the bottom of the reinforced concrete wall body, and the grouting sleeve 15 is used to facilitate connection between the wall and the reserved steel bars on the lower raft slab.

[0023] refer to Figure 4 and Figure 5During assembly construction, the butt steel bar ring 13 is crossed and overlapped with the butt steel bar ring of the adjacent wall 20 (including the structural column), and then the vertical steel bars are inserted into the overlapping butt steel bar rings to form a grid skeleton structure connecting the adjacent walls. Then, pouring concrete into the reserved pouring area 12 can realize the rapid and reliable connection of the adjacent walls, and the assembly is simple and reliable. Since a slurry retaining plate is formed on the outer side of the reserved pouring area 12, there is no need to set up scaffolding and encapsulate the formwork on the outer side of the wall during the pouring operation, and only the formwork needs to be encapsulated on the inner side of the wall. This greatly reduces the workload of setting up scaffolding and disassembling formwork on site, greatly improves construction efficiency, and shortens the construction period.

[0024] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. Assembled prefabricated concrete wall panel, characterized by: It includes a reinforced concrete wall body, wherein the left and right sides of the reinforced concrete wall body are respectively recessed with a casting reserved area, and the left and right sides of the reinforced concrete wall body are respectively pre-buried with multiple layers of butt steel rings in a closed-loop structure, at least part of the butt steel rings are exposed from the reinforced concrete wall body and are located in the casting reserved area; a slurry retaining plate is formed on the reinforced concrete wall body at the outer side of the casting reserved area.

2. The assembled prefabricated concrete wall panel according to claim 1, characterized in that: The end surface of the slurry retaining plate is concavely provided with a wall sealing groove.

3. The assembled prefabricated concrete wall panel according to claim 1 or 2, characterized in that: A grouting sleeve is pre-buried at the bottom of the reinforced concrete wall body.

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