Prefabricated shear wall structure convenient for pouring interlayer plate

Abstract

The utility model discloses a prefabricated shear wall structure facilitating pouring of interlayer plates, and belongs to the technical field of assembly type building construction. Comprising a concrete base material internally provided with a vertical connecting steel bar, a vertical supporting steel bar, a horizontal steel bar and a tie bar, and further comprises a pre-embedded plate bottom bar and a pre-embedded plate surface bar which are pre-embedded in the concrete base material, and one end of the pre-embedded plate bottom bar and one end of the pre-embedded plate surface bar are provided with mechanical connectors exposed out of the outer surface of the concrete base material. The pre-embedded plate bottom rib and the pre-embedded plate surface rib can be connected with the interlayer plate reinforcing steel bar through a mechanical joint; the pre-embedded plate bottom bars and the pre-embedded plate surface bars are vertically lapped on the vertical connecting steel bars and / or the vertical supporting steel bars and / or the horizontal steel bars; according to the prefabricated shear wall structure facilitating pouring of the interlayer plate, the prefabricated shear wall structure facilitating pouring of the interlayer plate is convenient to produce and transport, and the prefabrication assembly rate can be increased.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building construction technology, and in particular relates to a prefabricated shear wall structure that facilitates the casting of interlayer slabs. Background Technology

[0002] In modern building construction, precast shear wall structures are widely used due to their advantages such as fast construction speed and easy quality control.

[0003] However, during the construction of the connection between precast shear walls and inter-story slabs, to ensure the connection strength and structural integrity, the shear walls are usually replaced with cast-in-place concrete, or the precast shear walls have protruding reinforcing bars embedded on the wall surface that overlap with the reinforcing bars of the cast-in-place slab. Cast-in-place shear walls reduce the precast assembly rate, while embedding protruding reinforcing bars on the wall surface in precast shear walls increases the production cost of precast shear walls and makes them difficult to transport and install.

[0004] Therefore, there is an urgent need for a prefabricated shear wall structure that is easy to produce, transport, assemble, and install. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a prefabricated shear wall structure that facilitates the casting of interlayer slabs, which is convenient for production and transportation and can improve the prefabrication rate.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a precast shear wall structure that facilitates the casting of interlayer slabs, comprising a concrete substrate with built-in vertical connecting steel bars, vertical supporting steel bars, horizontal steel bars, and tie bars, and further comprising pre-embedded bottom steel bars and pre-embedded top steel bars embedded in the concrete substrate, wherein one end of the pre-embedded bottom steel bar and the pre-embedded top steel bar is provided with a mechanical joint exposed on the outer surface of the concrete substrate, and the pre-embedded bottom steel bar and the pre-embedded top steel bar can be connected to the interlayer slab steel bars through the mechanical joint;

[0007] Wherein, the bottom reinforcement of the embedded plate and the top reinforcement of the embedded plate are vertically overlapped on the vertical connecting reinforcement and / or the vertical supporting reinforcement and / or the horizontal reinforcement.

[0008] Optionally, the section of the pre-embedded slab reinforcement embedded in the concrete substrate is provided with a bent anchor section that is bent at 90°.

[0009] Optionally, the basic anchorage length of the pre-embedded plate reinforcement embedded in the concrete substrate is ≥0.4Lab.

[0010] Optionally, the length of the bent anchor portion is ≥15d1.

[0011] Optionally, the depth of the bottom reinforcement bar of the pre-embedded plate embedded in the concrete substrate is ≥5d2 and >1 / 2b.

[0012] Optionally, the side of the concrete substrate used for casting the interlayer slab is provided with a rough surface surrounding the mechanical joint, and the depth of the rough surface is ≥4mm.

[0013] Optionally, the diameters of the bottom reinforcement bars of the embedded plate, the top reinforcement bars of the embedded plate, and the reinforcement bars of the interlayer slab are equal.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by pre-embedding the bottom reinforcement and top reinforcement of the pre-embedded slab in the prefabricated structure, and by using the mechanical joints set on the bottom reinforcement and top reinforcement of the pre-embedded slab as anchor points for connecting the interlayer slab reinforcement, the interlayer slab reinforcement can be quickly connected to the concrete substrate through the mechanical joints during the later pouring of the interlayer slab. The structure is simple, easy to produce and transport, and improves the prefabrication assembly rate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a cross-sectional view of a precast shear wall structure that facilitates the casting of interlayer slabs in a preferred embodiment of this utility model.

[0017] Among them, 1. Vertical connecting reinforcement; 2. Vertical supporting reinforcement; 3. Horizontal reinforcement; 4. Tie bar; 5. Concrete substrate; 501. Rough surface; 6. Bottom reinforcement of embedded plate; 7. Top reinforcement of embedded plate; 701. Bent anchorage; 8. Mechanical joint; 9. Interlayer slab reinforcement. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] like Figure 1 As shown, a precast shear wall structure that facilitates the casting of interlayer slabs includes a concrete substrate 5 containing vertical connecting steel bars 1, vertical supporting steel bars 2, horizontal steel bars 3, and tie bars 4. The vertical connecting steel bars 1, vertical supporting steel bars 2, horizontal steel bars 3, and tie bars 4 are interlocked and overlapped with each other. After the concrete substrate 5 is cast and cured, a traditional precast shear wall is formed.

[0021] The aforementioned precast shear wall structure, distinct from traditional precast shear walls, facilitates the casting of interlayer slabs and includes embedded bottom reinforcement bars 6 and top reinforcement bars 7 embedded within the concrete substrate 5. One end of each of the embedded bottom reinforcement bars 6 and top reinforcement bars 7 has a mechanical joint 8 exposed on the outer surface of the concrete substrate 5. These bars can be connected to the interlayer slab reinforcement bars 9 via the mechanical joint 8. The interlayer slab reinforcement bars 9 form the main internal support structure of the interlayer slab, and their connection strength with the precast shear wall may affect the quality of the interlayer slab. This technical solution overlaps the embedded bottom reinforcement bars 6 and top reinforcement bars 7 in the precast structure and uses the mechanical joints 8 on these bars as anchor points for connecting the interlayer slab reinforcement bars 9. This allows for rapid connection of the interlayer slab reinforcement bars 9 to the concrete substrate 5 via the mechanical joints 8 during later interlayer slab casting, ensuring structural strength while saving costs and increasing the precast assembly rate.

[0022] As mentioned above, the diameters of the bottom reinforcement 6 and the top reinforcement 7 of the embedded slab are equal to those of the interlayer reinforcement 9. The mechanical joint 8 used for connection is existing technology and can be used for connection between steel reinforcement structures to ensure the connection strength.

[0023] Furthermore, such as Figure 1As shown, a section of the embedded slab reinforcement 7 embedded in the concrete substrate 5 is provided with a 90° bent anchor portion 701. This allows the embedded slab reinforcement 7 to transfer tensile force to the interior of the concrete substrate 5 through the bent anchor portion 701, resulting in good anchoring effect and dispersing stress concentration, thus improving the overall structure's durability and load-bearing capacity. In this technical solution, to ensure the anchoring effect of the bent anchor portion 701, the length of the bent anchor portion 701 is ≥15d1, where d1 represents the diameter of the embedded slab reinforcement 7.

[0024] Furthermore, to ensure that the embedded slab reinforcement 7 can effectively transmit tensile force within the concrete substrate, the basic anchorage length of the tensile reinforcement 7 embedded in the concrete substrate 5 is ≥0.4Lab. Simultaneously, to ensure the anchorage effect of the embedded slab bottom reinforcement 6 in the concrete substrate 5, the depth of the embedded slab bottom reinforcement 6 in the concrete substrate 5 is ≥5d² and >1 / 2b, where d² represents the diameter of the embedded slab bottom reinforcement 6 and b represents the width of the concrete substrate 5. The depth of the embedded slab bottom reinforcement 6 in the concrete substrate 5 must simultaneously meet both conditions: ≥5d² and >1 / 2b.

[0025] In this embodiment, a rough surface 501 is provided on one side of the concrete substrate 5 for casting the interlayer board, which surrounds the mechanical joint 8, and the rough surface 501 has a depth of ≥4mm. The rough surface 501 can increase the adhesion between the interlayer board and the original concrete substrate 5, and prevent delamination, peeling and other damage phenomena.

[0026] Working principle: Vertical connecting steel bars 1, vertical supporting steel bars 2, horizontal steel bars 3, and tie bars 4 are interlocked and overlapped. After the concrete substrate 5 is poured and cured, a precast shear wall is formed. By overlapping the bottom reinforcement 6 and top reinforcement 7 of the embedded slab in the precast structure, and using mechanical joints 8 set on the bottom reinforcement 6 and top reinforcement 7 as anchor points for connecting the interlayer slab reinforcement 9, the interlayer slab reinforcement 9 can be quickly connected to the concrete substrate 5 through the mechanical joints 8 during the later pouring of the interlayer slab. This ensures structural strength while saving costs and improving the precast assembly rate.

[0027] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A precast shear wall structure for easy casting of interlayer slabs, comprising a concrete substrate (5) with built-in vertical connecting steel bars (1), vertical supporting steel bars (2), horizontal steel bars (3), and tie bars (4), characterized in that: It also includes embedded bottom reinforcement (6) and embedded top reinforcement (7) in the concrete substrate (5). One end of the embedded bottom reinforcement (6) and the embedded top reinforcement (7) is provided with a mechanical joint (8) exposed on the outer surface of the concrete substrate (5). The embedded bottom reinforcement (6) and the embedded top reinforcement (7) can be connected to the interlayer reinforcement (9) through the mechanical joint (8). The bottom reinforcement (6) of the embedded plate and the top reinforcement (7) of the embedded plate are vertically overlapped on the vertical connecting reinforcement (1) and / or the vertical supporting reinforcement (2) and / or the horizontal reinforcement (3).

2. The precast shear wall structure with easy-to-cast interlayer slabs as described in claim 1, characterized in that: The pre-embedded slab reinforcement (7) is embedded in the concrete substrate (5) at one end with a bent anchor part (701) that bends 90°.

3. The precast shear wall structure with easy-to-cast interlayer slabs as described in claim 1, characterized in that: The basic anchorage length of the pre-embedded plate reinforcement (7) embedded in the concrete substrate (5) is ≥0.4Lab.

4. The precast shear wall structure for easy casting of inter-story slabs according to claim 2, characterized in that: The length of the bent anchor (701) is ≥15d1.

5. The precast shear wall structure for easy casting of inter-story slabs according to claim 1, characterized in that: The depth of the bottom reinforcement bar (6) of the pre-embedded plate embedded in the concrete substrate (5) is ≥5d2 and >1 / 2b.

6. The precast shear wall structure for easy casting of inter-story slabs according to claim 1, characterized in that: The concrete substrate (5) has a rough surface (501) on one side for casting the interlayer slab, which surrounds the mechanical joint (8), and the rough surface (501) has a depth of ≥4mm.

7. The precast shear wall structure with easy-to-cast interlayer slabs according to claim 1, characterized in that: The diameters of the bottom reinforcement (6) and the top reinforcement (7) of the embedded plate are equal to those of the interlayer reinforcement (9).

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