A prefabricated component for low-rise and multi-story buildings

Abstract

This utility model discloses a precast component for low-rise and multi-story buildings, including a component body. The component body includes hidden columns constructed near the two side edges. The bottom of the hidden column is a cast-in-place cavity, and the top of the cast-in-place cavity is connected to a concrete pouring channel. The bottom of the cast-in-place cavity is connected to the bottom of the hidden column. The concrete pouring channel is connected to the top of the hidden column. The part between the two hidden columns is a concrete structure without vertical reinforcement and cavity structure.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated component technology, and in particular to a prefabricated component for low-rise and multi-story buildings. Background Technology

[0002] Precast components are components that are prefabricated in a factory, with a casting zone constructed inside the main body of the component, and then cast on site during assembly.

[0003] A common structure for precast components involves multiple spaced-apart cast-in-place cavities within the main body of the component, arranged along its length. Adjacent cavities are spaced apart, forming concrete ribs. During on-site connection, the vertical reinforcing bars of the lower precast component extend into the cast-in-place cavity at the bottom of the upper precast component, overlapping with its vertical reinforcing bars. Concrete is then poured through the concrete pouring channel at the top of the upper precast component, entering the cast-in-place cavity and completing the connection between the cast-in-place concrete and the reinforcing bars, thus achieving the anchorage connection between the upper and lower layers.

[0004] However, the excessive and dense distribution of cast-in-place cavities in these precast components necessitates the installation of vertical reinforcing bars in each cavity, increasing costs and compromising on-site installation efficiency.

[0005] Therefore, this utility model is proposed. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a low-density, multi-layer prefabricated component to solve the technical problems in related technologies.

[0007] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0008] According to one aspect of the present invention, a precast component for low-rise and multi-story buildings is provided, comprising a component body, the component body including concealed columns constructed near the two side edges, the bottom of the concealed column being a cast-in-place cavity, the top of the cast-in-place cavity being connected to a concrete pouring channel; the bottom of the cast-in-place cavity being connected from the bottom of the concealed column; the concrete pouring channel being connected from the top of the concealed column; the portion between the two concealed columns is a concrete structure without vertical reinforcement and cavity structure.

[0009] Optionally, the vertical reinforcing bars include two bars arranged front and back along the thickness direction of the main body of the component, with the top and bottom of the two vertical reinforcing bars connected together to form a closed end.

[0010] Optionally, the inner wall of the cast-in-place cavity is constructed with one or more steel bar grooves along the vertical direction; the bottom of the vertical steel bar is located in the steel bar groove.

[0011] Optionally, the surface of the main body of the component is provided with multiple horizontal lifting points.

[0012] Optionally, the horizontal suspension point is located on the side of the concealed column near the middle of the main body of the component.

[0013] Optionally, the main body of the component is provided with a top lifting point.

[0014] Optionally, the top suspension point is located on the side of the concealed column near the middle of the main body of the component.

[0015] This utility model provides a precast component for low-rise and multi-story buildings, comprising a main body. The main body includes concealed columns located near the two side edges. The bottom of each concealed column is a cast-in-place cavity, and the top of the cavity is connected to a concrete pouring channel. The bottom of the cavity is connected to the bottom of the concealed column, and the channel is connected to the top. The portion between the two concealed columns is a concrete structure without vertical reinforcement or a cavity. This structure, with cast-in-place cavities and pouring channels only on the two side concealed columns and with vertical reinforcement, eliminates the need for vertical reinforcement and cast-in-place areas in the continuous regions between the columns. When connecting two layers of precast components, only the two side concealed columns need to be connected; the middle connection is unnecessary. This saves on steel reinforcement and facilitates on-site installation, making it particularly suitable for use as a precast wall for low-rise and multi-story buildings. Attached Figure Description

[0016] Figure 1 This invention provides a structural schematic diagram of a prefabricated component according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Another structural diagram from another angle;

[0018] Figure 3 This is an enlarged schematic diagram of the bottom structure of 2;

[0019] Figure 4 for Figure 1 A perspective structural diagram;

[0020] In the picture:

[0021] 1-Main component; 2-Hidden column; 3-Cast-in-place cavity; 4-Concrete pouring channel; 5-Concrete structure; 6-Vertical reinforcement; 7-Reinforcement groove; 8-Horizontal lifting point; 9-Top lifting point. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] This utility model provides a prefabricated component for low-rise and multi-story buildings, combined with... Figure 1-4 The precast component includes a main body 1, which includes concealed columns 2 located near the two side edges. The bottom of the concealed column 2 is a cast-in-place cavity 3, and the top of the cast-in-place cavity 3 is connected to a concrete pouring channel 4. The bottom of the cast-in-place cavity 3 is connected to the bottom of the concealed column 2, and the concrete pouring channel 4 is connected to the top of the concealed column 2. The middle part of the concealed columns 2 on both sides is a concrete structure 5 without vertical reinforcing bars 6 and a cavity structure, and the length of the concrete structure 5 is greater than the length of the concealed column 2. When the upper and lower precast components are connected, the vertical reinforcing bars 6 of the concealed column 2 of the lower precast component extend into the bottom of the cast-in-place cavity 3 of the concealed column 2 of the upper precast component and overlap with the bottom of the vertical reinforcing bars 6 of the upper precast component.

[0024] The vertical reinforcing bars 6 include two bars arranged front and back along the thickness direction of the main body 1 of the component. The top and bottom of the two vertical reinforcing bars 6 are connected to each other to form a closed end, i.e., a ring structure, which can increase the bonding strength between the old and new concrete.

[0025] The inner wall of the cast-in-place cavity 3 has one or more vertically constructed steel bar grooves 7; the bottom of the vertical steel bar 6 is located within the steel bar groove 7. Compared with the flat inner wall of the cast-in-place cavity 3, the steel bar groove 7 also increases the bonding area between the old and new concrete, thereby improving the anchorage strength of the connection between the upper and lower precast components.

[0026] In this embodiment, the surface of the main component 1 is provided with multiple horizontal lifting points 8 to facilitate the lifting and transportation of the prefabricated component. The horizontal lifting points 8 are located on the side of the concealed column 2 near the middle of the main component 1, thus avoiding the concealed column 2 and improving the stability of the lifting. The top of the main component 1 is provided with a top lifting point 9 to facilitate the lifting and transportation of the prefabricated component from the top. The top lifting point 9 is located on the side of the concealed column 2 near the middle of the main component 1, which also has the advantage of avoiding the concealed column 2 and improving the stability of the lifting.

[0027] In practical applications, these prefabricated components can be produced in a standardized and modular manner. The factory determines the size of a module, and the designer designs according to this module. In this way, all the walls are in stock, and construction can be carried out quickly.

[0028] In the field of building construction, a low-rise building refers to a building with a height of 10 meters or less (height ≤ 10 meters) and 3 or fewer floors (number of floors ≤ 3 floors). A multi-story building refers to a building with a height greater than 10 meters and less than 24 meters (10 meters < multi-story building height < 24 meters) and more than 3 floors and less than 7 floors (3 floors < number of floors < 7 floors). The prefabricated components provided in this embodiment do not require connection between the upper and lower floors. Therefore, for low-rise and multi-story buildings, their height is not particularly high. Even without connection in the middle, they can still meet practical usage requirements, making them particularly suitable for low-rise and multi-story buildings.

[0029] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A prefabricated component for low-rise and multi-story buildings, characterized in that, The component includes a main body, which includes hidden columns constructed near the two side edges. The bottom of the hidden column is a cast-in-place cavity, and the top of the cast-in-place cavity is connected to a concrete pouring channel. The bottom of the cast-in-place cavity is connected to the bottom of the hidden column. The concrete pouring channel is connected to the top of the hidden column. The middle part of the hidden columns on both sides is a concrete structure without vertical reinforcement and cavity structure.

2. The prefabricated component for low-rise and multi-story buildings according to claim 1, characterized in that, The vertical reinforcing bars include two bars arranged front and back along the thickness direction of the main body of the component. The top and bottom of the two vertical reinforcing bars are connected to each other to form a closed end.

3. The low-rise, multi-layer prefabricated component according to claim 1, characterized in that, The inner wall of the cast-in-place cavity is constructed with one or more steel bar grooves along the vertical direction; the bottom of the vertical steel bar is located in the steel bar groove.

4. The low-rise, multi-layer prefabricated component according to claim 1, characterized in that, The surface of the main body of the component is provided with multiple horizontal lifting points.

5. The low-rise, multi-layer prefabricated component according to claim 4, characterized in that, The horizontal suspension point is located on the side of the concealed column near the middle of the main body of the component.

6. The low-rise, multi-layer prefabricated component according to claim 1, characterized in that, The main body of the component is provided with a top lifting point.

7. The low-rise, multi-layer prefabricated component according to claim 6, characterized in that, The top suspension point is located on the side of the concealed column near the middle of the main body of the component.

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