A horizontal connection structure for modular wall structure of precast concrete assembled house

Abstract

This utility model relates to the field of precast concrete assembled houses, specifically disclosing a horizontal connection structure for a modular wall structure node of a precast concrete assembled house. It includes horizontal reinforcing bars, first wall reinforcement, first stirrups, a first wall, a second wall, second wall reinforcement, second stirrups, a third wall, and a fourth wall. The first and third walls, as well as the inner sides of the second and fourth walls, are respectively provided with the first stirrups and the second stirrups. Horizontal reinforcing bars are connected to the bottom of the first and second stirrups. The inner walls of the first, third, second, and fourth walls are provided with the first wall reinforcement and the second wall reinforcement at horizontal and vertical positions near the edges. The first and third walls, as well as the second and fourth walls, are respectively provided on opposite sides, and are connected by two horizontal reinforcing bars bound together on the outer side.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete assembled houses, specifically a horizontal connection structure for the nodes of a precast concrete assembled house module wall structure. Background Technology

[0002] Integrated housing, also known as prefabricated modular buildings, is a type of building constructed using industrialized production methods. It involves prefabricating some or all of the building components in a factory, then transporting them to the construction site and assembling them using reliable connection methods. For example, the authorized patent with publication number CN217379409U (Reinforced Concrete Composite Wall) includes: a first precast wall panel including multiple first fixing structures; a second precast wall panel including multiple second fixing structures; multiple first fixing cages, each including multiple first fixing rings and disposed between the first and second precast wall panels; multiple first fixing rods; multiple second fixing rods, parallel to the first fixing rods and extending along a first direction; and concrete poured between the first and second precast wall panels. These first fixing rings overlap with the first and second fixing structures respectively, allowing the first and second fixing rods to pass through the overlapping area. This reinforced concrete composite wall has a stable connection structure, giving the composite wall high load-bearing capacity. The aforementioned existing technology uses circular stirrups for connection, which makes it difficult to insert the steel bars, and the stability is insufficient, making them prone to deformation. When multiple walls are assembled horizontally, the steel bars cannot be inserted into each other for assembly, resulting in insufficient tensile and compressive strength transmission of the assembled wall, insufficient resistance to bending moment and shear force, and insufficient integrity and redundancy of the assembled wall. Utility Model Content

[0003] The purpose of this utility model is to provide a horizontal connection structure for the nodes of precast concrete modular wall structures, in order to solve the problems mentioned in the background art, such as the difficulty in inserting the reinforcing bars due to the use of circular stirrups for connection, insufficient stability, easy deformation, inability to insert the reinforcing bars into each other when assembling multiple walls horizontally, insufficient tensile and compressive strength transmission of the assembled wall, insufficient resistance to bending moment and shear force, and insufficient integrity and redundancy of the assembled wall.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a horizontal connection structure for a precast concrete modular wall structure node, comprising horizontal reinforcing bars, first wall reinforcing bars, first stirrups, a first wall, a second wall, second wall reinforcing bars, second stirrups, a third wall, and a fourth wall. The first wall and the third wall, as well as the second wall and the fourth wall, are respectively provided with the first stirrups and the second stirrups. The bottom and top of the first stirrups and the second stirrups are respectively connected to horizontal reinforcing bars. The inner walls of the first wall, the third wall, the second wall, and the fourth wall are respectively provided with the first wall reinforcing bars and the second wall reinforcing bars at horizontal longitudinal and vertical positions near the edges, and both the first wall reinforcing bars and the second wall reinforcing bars are connected to the first stirrups and the second stirrups.

[0005] In a further embodiment, the connection between the horizontal reinforcing bar and the first and second stirrups is... This includes wire binding or welding.

[0006] In a further embodiment, the connection between the horizontal reinforcing bar and the first and second stirrups includes a binding assembly, which is provided with multiple binding wires, and the multiple binding wires are tightly bound to the first and second stirrups by twisting heads.

[0007] In a further embodiment, the end of the horizontal reinforcing bar is provided with an extension reinforcing bar head, and the extension reinforcing bar head is inserted into the bottom of the first stirrup and the second stirrup that are spliced ​​together when the wall is horizontally and longitudinally connected.

[0008] In a further embodiment, both the first stirrup and the second stirrup are square structures, and the first stirrup and the second stirrup are arranged alternately vertically.

[0009] In a further embodiment, the first wall reinforcement is bent into a horizontal U-shaped structure, with its two ends extending into the floor slab mold cavity and the floor slab mold cavity, respectively, and the second wall reinforcement is set as a straight reinforcement structure.

[0010] In a further embodiment, the first wall, the third wall, the second wall and the fourth wall are all made of precast concrete, and the joints between the walls are provided with a sealing structure and a post-cast concrete area.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The first and third walls of this utility model are respectively provided with first and second stirrups on the opposite side between the first and third walls and the second and fourth walls. Multiple first or second stirrups at the same level are connected into one body by binding and lapping two horizontal steel bars on the outside, so as to ensure the stability of the horizontal connection of the walls.

[0012] 2. The horizontal steel bars of this utility model are provided with extended steel bar ends. The extended steel bar ends can connect the longitudinally connected walls to each other, ensuring that the tensile and compressive forces between the four assembled walls are mutually transmitted. The mechanical principle of horizontal connection is to connect several independent wall panels into a whole wall segment that shares the load through the continuity of steel bars and concrete. Through effective horizontal connection, the originally independent wall panels can be like a whole cast-in-place wall, jointly resisting bending moment and shear force, which greatly improves the integrity and redundancy of the structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the horizontal connection structure of the modular wall structure of a precast concrete assembly house according to the present invention. Figure 2 This is a schematic diagram of the horizontal assembly principle of this utility model; Figure 3 This is a schematic diagram of the structure of the horizontal reinforcing bar of this utility model; Figure 4 This is a front cross-sectional view of the horizontal assembly of the wall structure of this utility model; Figure 5 This is a front view of the binding of wall reinforcement and horizontal reinforcement in this utility model. Figure 6 This is a top view of the binding of wall reinforcement and horizontal reinforcement in this utility model. Figure 7 This is a top view of the binding assembly of this utility model; Figure 8 This is a structural schematic diagram of part A of this utility model.

[0014] In the diagram: 1. Horizontal reinforcement; 2. First wall reinforcement; 3. First stirrup; 4. First wall; 5. Second wall; 6. Second wall reinforcement; 7. Second stirrup; 8. Third wall; 9. Fourth wall; 10. Extension rebar end; 11. Binding assembly; 12. Twisted head; 13. Tie wire. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figure 1-8This utility model provides an embodiment of a horizontal connection structure for a precast concrete modular wall structure, comprising horizontal reinforcing bars 1, first wall reinforcing bars 2, first stirrups 3, first wall 4, second wall 5, second wall reinforcing bars 6, second stirrups 7, third wall 8, and fourth wall 9. First stirrups 3 and second stirrups 7 are respectively provided on the inner sides of the first wall 4, third wall 8, second wall 5, and fourth wall 9. Horizontal reinforcing bars 1 are connected to the bottom and top of the first stirrups 3 and second stirrups 7, respectively. First wall reinforcing bars 2 and second wall reinforcing bars 6 are respectively provided at the horizontal longitudinal and vertical positions near the edges of the inner walls of the first wall 4, third wall 8, second wall 5, and fourth wall 9, and both the first wall reinforcing bars 2 and second wall reinforcing bars 6 are connected to the first stirrups 3 and second stirrups 7.

[0017] The first wall 4 and the third wall 8 are horizontally spliced ​​and assembled with the second wall 5 and the fourth wall 9 by the first stirrup 3 and the second stirrup 7. The horizontal steel bar 1 is used to connect the horizontally assembled first stirrup 3 and the second stirrup 7, so as to facilitate the transmission of tensile and compressive forces between multiple walls. The first wall steel bar 2 and the second wall steel bar 6 facilitate the installation and fixing of the first stirrup 3 and the second stirrup 7, and can enhance the protective strength of the wall.

[0018] Furthermore, the connection between the horizontal reinforcing bar 1 and the first stirrup 3 and the second stirrup 7 includes wire binding or welding.

[0019] Furthermore, the connection between the horizontal reinforcing bar 1 and the first stirrup 3 and the second stirrup 7 includes a binding assembly 11. The binding assembly 11 is provided with multiple binding wires 13, and the multiple binding wires 13 are bound and fixed to the first stirrup 3 and the second stirrup 7 through the twisting head 12. The binding assembly 11 facilitates the binding connection between the horizontal reinforcing bar 1 and the bottom of the first stirrup 3 and the top of the second stirrup 7.

[0020] Furthermore, the end of the horizontal steel bar 1 is provided with an extension steel bar head 10, and the extension steel bar head 10 is inserted into the bottom of the first stirrup 3 and the second stirrup 7 that are spliced ​​together when the wall is horizontally and longitudinally connected. The extension steel bar head 10 can enable the force to be transferred between the longitudinally connected walls.

[0021] Furthermore, both the first stirrup 3 and the second stirrup 7 are designed as square structures, with the first stirrup 3 and the second stirrup 7 arranged alternately. The square structure of the first stirrup 3 and the second stirrup 7 makes the assembly of the wall more stable and convenient, and facilitates the insertion of the reinforcing bars.

[0022] Furthermore, the first wall reinforcement 2 is bent into a horizontal U-shaped structure, with its two ends extending into the floor slab mold cavity and the floor slab mold cavity, respectively. The second wall reinforcement 6 is set as a straight reinforcement structure. The first wall reinforcement 2 and the second wall reinforcement 6 make the precast concrete wall have high strength.

[0023] Furthermore, the first wall 4, the third wall 8, the second wall 5, and the fourth wall 9 are all made of precast concrete, and the joints between the walls are equipped with a sealing structure and a post-cast concrete area. The sealing structure and the post-cast concrete area greatly improve the assembly sealing performance of the precast concrete.

[0024] Working principle: In use, multiple horizontal steel bars 1 are tied and fixed to multiple first stirrups 3 and multiple second stirrups 7 respectively by the binding assembly 11, and locked and fixed by the twist head 12 at the end of the binding wire 13. The first wall 4 and the third wall 8 are horizontally spliced ​​together, so that the first stirrups 3 and the second stirrups 7 on their inner sides are staggered and spliced ​​together vertically. Similarly, the second wall 5 and the fourth wall 9 are horizontally spliced ​​together. Then, the first wall 4 and the third wall 8 are vertically and horizontally assembled with the second wall 5 and the fourth wall 9, and the extension steel bar head 10 at the end of the horizontal steel bar 1 in the second wall 5 and the fourth wall 9 is extended and inserted into the bottom of the second stirrup 7 of the first stirrup 3 in the first wall 4 and the third wall 8, and tied and fixed by the binding assembly 11.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A horizontal connection structure for a precast concrete modular wall structure, comprising horizontal reinforcing bars (1), first wall reinforcing bars (2), first stirrups (3), first wall (4), second wall (5), second wall reinforcing bars (6), second stirrups (7), third wall (8), and fourth wall (9), characterized in that: The first wall (4) and the third wall (8) are respectively provided with the first stirrup (3) and the second stirrup (7) on the inner side of the second wall (5) and the fourth wall (9). The bottom and top of the first stirrup (3) and the second stirrup (7) are respectively connected with horizontal steel bars (1). The first wall (4), the third wall (8), the second wall (5) and the fourth wall (9) are respectively provided with the first wall steel bars (2) and the second wall steel bars (6) at the horizontal longitudinal and vertical positions near the side of the inner wall. The first wall steel bars (2) and the second wall steel bars (6) are both connected to the first stirrup (3) and the second stirrup (7).

2. The horizontal connecting structure of the node of the prefabricated concrete assembled house module wall structure according to claim 1, characterized in that: The connection between the horizontal steel bar (1) and the first stirrup (3) and the second stirrup (7) includes wire binding or welding.

3. The horizontal connecting structure of the node of the prefabricated concrete assembled house module wall structure according to claim 1, characterized in that: The connection between the horizontal steel bar (1) and the first stirrup (3) and the second stirrup (7) includes a binding assembly (11), which is provided with multiple binding wires (13), and the multiple binding wires (13) are bound and fixed to the first stirrup (3) and the second stirrup (7) by twisting head (12).

4. The horizontal connecting structure of the node of the prefabricated concrete assembled house module wall structure according to claim 1, characterized in that: The end of the horizontal steel bar (1) is provided with an extension steel bar head (10), and the extension steel bar head (10) is inserted into the bottom of the first stirrup (3) and the second stirrup (7) that are spliced ​​together when the wall is horizontally and longitudinally connected.

5. The horizontal connecting structure of the node of the precast concrete assembled house module wall structure according to claim 1, characterized in that: The first stirrup (3) and the second stirrup (7) are both square structures, and the first stirrup (3) and the second stirrup (7) are arranged alternately vertically.

6. The horizontal connecting structure of the node of the precast concrete assembled house module wall structure of claim 1, characterized in that: The first wall reinforcement (2) is bent into a horizontal U-shaped structure, with its two ends extending into the floor slab mold cavity and the floor slab mold cavity respectively. The second wall reinforcement (6) is set as a straight reinforcement structure.

7. The horizontal connection structure of the modular wall structure node of a precast concrete assembled house according to claim 1, characterized in that: The first wall (4), the third wall (8), the second wall (5) and the fourth wall (9) are all precast concrete walls, and the joints between the walls are provided with a sealing structure and a post-cast concrete area.

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