A precast wall

Abstract

The application discloses a prefabricated wall, which comprises wall columns and a wall body between the wall columns, and the wall columns and the wall body are integrated; one end of the wall column is provided with a connecting body, and the other end of the wall column is provided with a mounting hole; and upper and lower adjacent prefabricated walls can be fixedly installed into an integral whole through the connecting body and the mounting hole on the wall column. The prefabricated wall has the advantages that the wall columns and the wall body are integrally prefabricated, the wall columns are connected in a mortise and tenon connection mode, an appropriate amount of connecting agent is injected into the mounting hole at the top of the wall column of the lower prefabricated wall, the connecting body at the bottom of the wall column of the prefabricated wall to be installed is inserted into the corresponding mounting hole at the top of the wall column of the lower prefabricated wall, the upper and lower wall columns are fixedly connected into an integral whole when the connecting agent reaches a certain strength, a horizontal through joint surface is avoided at the installation connecting position, the connecting integrity is good, the shear resistance and the tensile resistance of the wall column at the connecting position are greatly improved, the wet work at the construction site is greatly reduced during installation of the prefabricated wall, the use of a formwork is reduced, and the prefabricated wall is beneficial to environmental protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated reinforced concrete building structure, in particular to a prefabricated wall. BACKGROUND

[0002] The load-bearing wall is composed of wall columns and wall bodies between the wall columns. The prefabricated reinforced concrete load-bearing wall generally adopts the method of prefabricating the wall body part of the wall, and casting the wall column part on site, that is, the prefabricated wall body is installed first, then the steel bars are bound and the formwork is set at the wall column, and then the concrete is cast on site to form the wall column.

[0003] However, the casting process of the wall column in the prior art needs to bind a large number of steel bars on the construction site, set a large number of formworks, and cast the concrete on site, which leads to a large amount of wet work on the construction site, which is not conducive to environmental protection. SUMMARY

[0004] To solve the above technical problems, the present application provides a prefabricated wall, the wall body and the wall columns on both sides thereof are prefabricated at the same time, the overall prefabrication of the wall columns and the wall body is realized, the wet work on the construction site is greatly reduced, the use of formworks for casting is reduced, and environmental protection is facilitated.

[0005] The technical scheme provided by the present application is as follows:

[0006] A prefabricated wall comprises wall columns and a wall body located between the wall columns, and the wall columns and the wall body are connected as a whole, one end of the wall column is provided with a connecting body, and the other end of the wall column is provided with a mounting hole, and the wall columns of the prefabricated walls adjacent to each other in the up-down direction can be fixedly installed as a whole through the cooperation of the connecting bodies and the mounting holes on the wall columns.

[0007] Further, the connecting body is a concrete column, and a steel bar is arranged in the concrete column.

[0008] Further, the outer surface of the connecting body is a rough surface, and the inner surface of the mounting hole is a rough surface.

[0009] Further, the connecting body is provided with an inclined surface at the end thereof.

[0010] Further, the mounting hole is located on the inner side of the steel bar cage at the position thereof, and the spacing of the stirrups of the steel bar cage at the mounting hole is smaller than the spacing of the stirrups of the steel bar cage at the position of the wall column without the mounting hole.

[0011] Further, the wall column has an L-shaped cross section, one end of the wall column is provided with an L-shaped connecting body, and the other end of the wall column is provided with an L-shaped mounting hole.

[0012] Further, the wall column has a T-shaped cross section, one end of the wall column is provided with a T-shaped connecting body, and the other end of the wall column is provided with a T-shaped mounting hole.

[0013] Further, the top and bottom of the wall body are provided with connecting steel bars, the connecting steel bars of the bottom of the upper precast wall body are staggered with the connecting steel bars of the top of the lower precast wall body.

[0014] Further, the top of the wall body is provided with a boss on the inner side of the wall body, and the boss extends along the length direction of the wall body.

[0015] Further, the bottom of the wall body is provided with a sleeve, and a bolt is connected in the sleeve, and the length of the bolt extending out of the sleeve can be adjusted to adjust the installation height of the precast wall.

[0016] The precast wall provided by the application comprises wall columns and wall bodies between the wall columns, and the wall columns and the wall bodies are integrally precast, and when two adjacent precast walls are installed, the connecting body of the upper wall column is inserted into the mounting hole of the lower wall column in a mortise and tenon connection mode. The specific process is that first, the mounting hole at the top of the lower precast wall column is injected with an appropriate amount of connecting agent, and then the connecting body at the bottom of the wall column of the precast wall to be installed is inserted into the corresponding mounting hole at the top of the lower precast wall column, and as the insertion depth increases, the connecting agent in the mounting hole gradually and uniformly overflows from the periphery of the mounting hole, and when the wall column connecting body is inserted to a predetermined depth, the installation and connection of the upper and lower wall columns are completed. When the connecting agent reaches a certain strength, the upper and lower wall columns are fixedly connected to form an integral whole. The wall columns connected in the mortise and tenon mode do not form a horizontally-through bonding surface at the installation and connection position, the connection integrity is good, and the shear resistance and tensile resistance of the wall columns at the connection position are greatly improved. When the precast wall is installed, the wet work at the construction site is greatly reduced, and the use of formwork is reduced, which is beneficial to environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is a structural schematic diagram of the precast wall in the embodiments of the present application;

[0019] Figure 2 It is a structural schematic diagram of the wall column of the precast wall in the embodiments of the present application;

[0020] Figure 3 It is a structural schematic diagram of the connecting body of the precast wall in the embodiments of the present application;

[0021] Figure 4 It is another structural schematic diagram of the connecting body of the precast wall in the embodiments of the present application;

[0022] Figure 5 Figure 1 is a structural schematic diagram of a prefabricated wall mounting hole part in an embodiment of the present application;

[0023] Figure 6 Figure 2 is a structural schematic diagram of an upper prefabricated wall and a lower prefabricated wall mounting connection structure in an embodiment of the present application;

[0024] Figure 7 Figure 3 is a structural schematic diagram of a prefabricated wall L-shaped connecting body in an embodiment of the present application;

[0025] Figure 8 Figure 4 is a structural schematic diagram of a prefabricated wall L-shaped mounting hole in an embodiment of the present application;

[0026] Figure 9 Figure 5 is a structural schematic diagram of a prefabricated wall T-shaped connecting body in an embodiment of the present application;

[0027] Figure 10 Figure 6 is a structural schematic diagram of a prefabricated wall T-shaped mounting hole in an embodiment of the present application;

[0028] Figure 11 Figure 7 is a structural schematic diagram of another wall body of a prefabricated wall in an embodiment of the present application;

[0029] Figure 12 Figure 8 is a structural schematic diagram of a prefabricated wall wall body provided with an adjusting mechanism in an embodiment of the present application.

[0030] Reference signs: wall column 1, wall body 2, connecting body 3, mounting hole 4, steel bar 5, steel bar cage 6, connecting steel bar 7, reinforcing steel bar 8, connecting body end 9, L-shaped connecting body 10, L-shaped mounting hole 11, T-shaped connecting body 12, T-shaped mounting hole 13, vertical groove 14, boss 15, bolt 16. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that when a component is referred to as "mounted on" or "provided on" another component, it can be directly on the other component or indirectly on the other component; when a component is referred to as "connected with" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used only for convenience in describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the application.

[0034] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise explicitly and specifically limited.

[0035] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the disclosed content of the present application, to be understood and read by those skilled in the art, and do not have technical significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0036] As shown in Figure 1 The present application provides a prefabricated wall, which comprises wall columns 1 and a wall body 2 located between the wall columns, and the wall columns 1 and the wall body 2 are connected as a whole, one end of the wall column 1 is provided with a connecting body 3, and the other end of the wall column 1 is provided with a mounting hole 4, and the wall columns of the prefabricated wall adjacent to each other in the up-down direction can be fixedly installed as a whole through the cooperation of the connecting body 3 and the mounting hole 4 on the wall column 1.

[0037] The load-bearing wall is the vertical load-bearing component of the house, which bears various loads from the floors above and the roof, and reliably transmits these loads to the foundation. The existing prefabricated load-bearing wall technology usually adopts the technical scheme of prefabricating the wall body and casting the wall column on site, because it lacks reliable connection methods to realize the connection between the wall bodies. This connection method requires more steel bars to be tied and more formworks to be set on site, and it also requires on-site pouring of concrete, which has more wet work on the construction site, which is not conducive to environmental protection.

[0038] The prefabricated wall provided by the embodiment comprises a wall body 2 and wall columns 1 on both sides of the wall body, and the wall body 2 and the wall columns 1 are prefabricated integrally. When two adjacent prefabricated walls are installed, the wall columns 1 are connected by means of mortise and tenon connection, and the wall body 2 is fixed and installed by means of reserved steel bars and post-cast concrete. The mortise and tenon connection means that the connecting body 3 of the upper wall column 1 is inserted into the installation hole 4 of the lower wall column 1 for installation and connection. The specific installation process is as follows: first, the lower prefabricated wall is fixed and installed, then an appropriate amount of connecting agent is injected into the installation hole 4 at the top of the wall column 1 of the lower prefabricated wall, the connecting agent is preferably mortar, epoxy resin glue or a mixture of the two, and then the connecting body 3 at the bottom of the wall column 1 of the prefabricated wall to be installed is inserted into the corresponding installation hole 4 of the wall column of the lower prefabricated wall. As the insertion depth increases, the connecting agent in the installation hole 4 gradually overflows uniformly from around the installation hole. When the connecting body 3 of the wall column 1 is inserted to the predetermined depth, the installation and construction of the wall column 1 concrete are completed. When the connecting agent reaches a certain strength, the upper and lower wall columns are connected to form a whole. The prefabricated wall wall column connected by means of mortise and tenon connection has good connection integrity, and the upper and lower wall columns 1 have no horizontal connecting surface at the connection position, which greatly improves the shear resistance and tensile resistance of the wall column at the connection position. Compared with the traditional cast-in-place wall column, the prefabricated wall greatly reduces the wet work at the construction site during production and installation, saves a large amount of formwork, is beneficial to environmental protection, and greatly improves the construction speed.

[0039] Before the connecting body 3 is inserted into the installation hole 4, an appropriate amount of connecting agent is injected into the installation hole 4. During the installation process, the installation quality of the wall column can be intuitively understood by observing the overflow of the connecting agent. Uniform overflow of a small amount of connecting agent at the connection position of the connecting body 3 and the installation hole 4 indicates that the amount of connecting agent is appropriate and the installation quality of the wall column is good. The installation method of inserting the connecting body 3 into the installation hole 4 greatly enhances the reliability and installation quality of the wall column, because the contact surface between the connecting body 3 and the installation hole 4 is composed of the top surface, the bottom surface and the four side surfaces of the installation hole wall.

[0040] As shown in Figure 1 and Figure 2 , the connecting body 3 is a concrete column, and a steel bar 5 is arranged in the concrete column. Specifically, the steel bar 5 is arranged along the length direction of the wall column, and one end of the steel bar 5 is located inside the wall column 1. Preferably, the steel bar 5 can be fixedly connected with the longitudinal steel bar in the steel bar cage 6 inside the wall column. The mortise and tenon connection of the wall column realizes equal-strength connection of the longitudinal steel bar in the wall column 1, which is equivalent to the mechanical properties of the traditional longitudinal steel bar lap joint. The steel bar 5 inside the connecting body 3 is in a U shape. Preferably, two or more U-shaped steel bars are arranged inside the connecting body 3 along the extension direction of the wall column 1, and the U-shaped steel bars can be arranged side by side. The length of the connecting body 3 is greater than or equal to 200 mm. In order to make the connection strength between the wall columns 1 higher, the length of the connecting body 3 can be increased, and preferably the length of the connecting body 3 is greater than or equal to 300 mm.

[0041] In order to increase the connecting strength between the wall columns 1, the outer surface of the connecting body is roughened, and the inner surface of the mounting hole is roughened. Roughening the outer surface of the connecting body 3 and the inner surface of the mounting hole 4 can increase the connecting strength between the connecting body and the mounting hole. Preferably, as shown in Figure 3 and Figure 4 the connecting body end 9 is provided with an inclined surface. The connecting body end is provided with an inclined surface, which can prevent the connecting agent in the mounting hole from forming a bubble cavity at the end of the connecting body 3 when the connecting body 3 is inserted into the mounting hole 4, thereby reducing the connecting strength. Preferably, as shown in Figure 4 the connecting body end 9 can be provided with a cone, which can be a pyramid.

[0042] As shown in Figure 5 as a preferred embodiment in the present embodiment, the mounting hole 4 is located inside the reinforcement cage 6 at its location, and the spacing of the stirrups of the reinforcement cage 6 at the mounting hole 4 is smaller than the spacing of the stirrups of the reinforcement cage 6 at the wall column 1 without the mounting hole 4. The arrangement of the reinforcement cage 6 inside the wall column 1 is based on national standards or mechanical analysis, and the mounting hole 4 is arranged inside the reinforcement cage 6 of the wall column 1 to ensure the strength of the mounting hole 4. Preferably, the spacing of the stirrups at the mounting hole 4 is smaller, which increases the strength of the mounting hole 4.

[0043] As a preferred embodiment in the present embodiment, the top and bottom of the wall body 2 are provided with connecting reinforcement 7, and the connecting reinforcement 7 at the bottom of the upper prefabricated wall body is arranged alternately with the connecting reinforcement 7 at the top of the lower prefabricated wall body. Specifically, the connecting reinforcement 7 is U-shaped, and the U-shaped reinforcement is arranged at the connection between the upper and lower adjacent wall bodies, so that the prefabricated wall has a larger out-of-plane bending strength at the connection, which can improve the out-of-plane bearing capacity of the prefabricated wall under the action of an earthquake. As shown in Figure 6 the connecting reinforcement 7 at the bottom of the upper prefabricated wall body is arranged alternately with the connecting reinforcement 7 at the top of the lower prefabricated wall body, and at least one reinforcing steel bar 8 is arranged inside the connecting reinforcement that passes through the upper and lower prefabricated walls, which further improves the connecting strength between the wall bodies 2.

[0044] The present embodiment provides a second wall column embodiment, as shown in Figure 7 and Figure 8 the wall column has an L-shaped cross section, one end of the wall column is provided with an L-shaped connecting body 10, and the other end of the wall column is provided with an L-shaped mounting hole 11. The wall columns of two adjacent prefabricated walls are fixed and installed together by the cooperation of the L-shaped connecting body 10 and the L-shaped mounting hole 11. Specifically, the L-shaped mounting hole 11 is provided with stirrups according to national standards or mechanical analysis requirements, and vertical grooves 14 are formed on the L-shaped connecting body 10 at positions corresponding to the positions of the stirrups in the L-shaped mounting hole 11, which facilitates the cooperation and installation of the L-shaped connecting body and the L-shaped mounting hole.

[0045] The third wall column implementation is provided in the embodiment, as shown in Figure 9 and Figure 10 The wall column is T-shaped in cross section, one end of the wall column is provided with a T-shaped connecting body 12, and the other end of the wall column is provided with a T-shaped mounting hole 13. The wall columns of two adjacent prefabricated walls are connected together through the cooperation of the T-shaped connecting body 12 and the T-shaped mounting hole 13. Specifically, the T-shaped mounting hole 13 is provided with a stirrup according to the national standard or the requirement of mechanical analysis, and a vertical groove 14 is formed on the T-shaped connecting body 12 at the position corresponding to the position of the stirrup in the T-shaped mounting hole 13, so as to facilitate the cooperation and installation of the T-shaped connecting body and the T-shaped mounting hole.

[0046] Further optimization of the technical scheme is provided, as shown in Figure 11 The top of the wall body 2 is provided with a boss 15 on the inner side of the wall body 2, and the boss 15 extends along the length direction of the wall body 2. When the prefabricated wall is used as an outer wall, in order to enhance the waterproof performance of the wall body 2 at the connection position, the boss 15 is arranged on the inner side of the wall body 2 at the top of the wall body 2, and the boss 15 is arranged along the entire length of the wall body 2, so that the inner side of the top of the wall body 2 is higher than the outer side. After the installation and connection of two adjacent wall bodies 2, a good waterproof effect is achieved.

[0047] Further optimization is provided, as shown in Figure 12 The bottom of the wall body is provided with a sleeve, a bolt 16 is connected in the sleeve, and the length of the bolt 16 extending out of the sleeve can be adjusted to adjust the installation height of the prefabricated wall. Specifically, the sleeve is embedded in the prefabricated wall body, and the bolt 16 is connected with the sleeve through threads. When installing two adjacent prefabricated walls, in order to make the installed prefabricated wall meet the predetermined height requirement, the length of the bolt 16 extending out of the sleeve at the bottom of the upper prefabricated wall can be adjusted to adjust the height of the prefabricated wall during the installation process.

[0048] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A precast wall, characterized in that, The wall column and the wall body between the two wall columns are integrally connected, one end of the wall column is provided with a connecting body, and the other end of the wall column is provided with a mounting hole, and the wall columns of the adjacent prefabricated walls are fixedly installed into an integral whole through the connecting body and the mounting hole. The connecting body is a concrete column, a steel bar is arranged in the concrete column, one end of the steel bar is arranged in the wall column, and the steel bar is fixedly connected with the longitudinal steel bars in the steel cage in the wall column. The wall column and the wall body are integrally prefabricated, the connecting body is inserted into the mounting hole and fixed by a connecting agent.

2. The precast wall of claim 1, wherein, The outer surface of the connecting body is a rough surface, and the inner surface of the mounting hole is a rough surface.

3. The precast wall of claim 1, wherein, The end of the connecting body is provided with an inclined surface.

4. The precast wall of claim 1, wherein, The mounting hole is located in the inner side of the steel cage at the position, the spacing of the stirrups of the steel cage at the mounting hole is smaller than the spacing of the stirrups of the steel cage at the position without the mounting hole.

5. The precast wall of claim 1, wherein, The cross section of the wall column is L-shaped, one end of the wall column is provided with an L-shaped connecting body, and the other end of the wall column is provided with an L-shaped mounting hole.

6. The precast wall of claim 1, wherein, The cross section of the wall column is T-shaped, one end of the wall column is provided with a T-shaped connecting body, and the other end of the wall column is provided with a T-shaped mounting hole.

7. A precast wall according to any one of claims 1 to 6, characterised in that, The top and bottom of the wall body are provided with connecting steel bars, and the connecting steel bars at the bottom of the upper wall body are staggered with the connecting steel bars at the top of the lower wall body.

8. The precast wall of claim 7, wherein, The top of the wall body is provided with a boss on the inner side of the wall body, and the boss extends along the length direction of the wall body.

9. The precast wall of claim 8, wherein, The bottom of the wall body is provided with a sleeve, a bolt is connected in the sleeve, and the length of the bolt extending out of the sleeve can be adjusted to adjust the installation height of the prefabricated wall.

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