A precast column assembly mounting structure

Abstract

This utility model provides a precast column assembly installation structure, belonging to the technical field of installation structure technology. It includes a precast lower column and a precast upper column. The precast lower column is located below the precast upper column, and four sets of grooves are formed on one side of the precast lower column. Multiple sets of vertical reinforcing bars are pre-embedded in both the precast lower and upper columns. Four sets of embedded parts are provided at the bottom of the precast lower column. A fixing plate is provided below the precast lower column to ensure the accuracy of the embedded parts. Four sets of L-shaped anchor bolts are provided at the bottom of the precast lower column. Grouting steel sleeves are fitted onto the multiple sets of vertical reinforcing bars. The precast lower and upper columns are connected by the multiple sets of vertical reinforcing bars, and the connection between the precast lower and upper columns is open. When using this device, the connection between the L-shaped anchor bolts, the fixing plate, and the precast lower column eliminates the need for complex external diagonal supports to reinforce the precast columns. Furthermore, after the precast columns are quickly installed using the embedded parts, precast beams and precast floor slabs can be directly installed, shortening the construction time for each floor.

Description

Technical Field

[0001] This utility model belongs to the field of installation structure technology, and more specifically, it relates to a precast column assembly installation structure. Background Technology

[0002] In prefabricated building construction, in order to ensure the structural stability and construction efficiency of the building, construction workers often use the method of assembling and installing prefabricated columns.

[0003] However, traditional devices lack horizontal adjustment and positioning functions, which makes it difficult to guarantee the positioning accuracy of precast columns during installation due to the lack of horizontal adjustment measures. Construction errors will gradually accumulate, which can easily lead to uneven stress on the precast columns and cause structural deformation.

[0004] Meanwhile, traditional devices typically rely on diagonal bracing to reinforce precast columns, which is not only cumbersome to install but also requires a lot of manpower and material resources, further increasing construction costs and management difficulties. During construction, due to the complexity of structural connections, it is impossible to quickly connect the installation of precast beams and precast floor slabs and other subsequent components, resulting in slow construction progress and failing to meet the needs of modern building construction for speed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a precast column assembly and installation structure to address the technical issues in the prior art, where traditional devices do not have the function of horizontal adjustment and positioning, and traditional devices usually rely on diagonal supports to reinforce precast columns.

[0006] The purpose and effect of this utility model's precast column assembly installation structure are achieved through the following specific technical means: A precast column assembly structure includes a precast lower column and a precast upper column. The precast lower column is located below the precast upper column. Four sets of grooves are formed on one side of the precast lower column. Multiple sets of vertical reinforcing bars are pre-embedded in the precast lower column and the precast upper column. Four sets of embedded parts are provided at the bottom of the precast lower column. A fixing plate for ensuring the embedding accuracy is provided below the precast lower column. Four sets of L-shaped anchor bolts are provided at the bottom of the precast lower column. Grouting steel sleeves are respectively fitted on the multiple sets of vertical reinforcing bars. The precast lower column and the precast upper column are connected by the multiple sets of vertical reinforcing bars. The connection between the precast lower column and the precast upper column is hollowed out.

[0007] According to a preferred embodiment, during binding, one side of the multiple sets of embedded parts is connected to the multiple sets of vertical reinforcing bars, and each of the four sets of L-shaped anchor bolts includes a horizontal section and a vertical section. The horizontal section is embedded inside the fixing plate, and the vertical section passes through the precast lower column. The connection between the four sets of L-shaped anchor bolts and the precast lower column is fixed by nuts.

[0008] According to a preferred embodiment, both the precast lower column and the precast upper column are T-shaped, the number of vertical reinforcing steel bars is equal to the number of grouting steel sleeves, and the four sets of embedded parts are respectively located in the groove.

[0009] According to a preferred embodiment, the precast upper column is provided with multiple sets of top fixing bolts. After horizontal adjustment, the multiple sets of top fixing bolts are respectively connected to multiple sets of vertical reinforcing bars. The precast lower column and the precast upper column are respectively provided with grouting cavities.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This device, with its four sets of embedded parts at the base of the precast column and multiple sets of top fixing bolts, allows users to quickly adjust and position the precast column horizontally, improving installation efficiency. After the precast column is initially placed, users can adjust its horizontal position by connecting the top fixing bolts to the vertical reinforcing bars, enabling them to complete the installation and positioning of the precast column. This enhances the device's positioning and rapid installation capabilities during the precast column installation process.

[0011] 2. When using this device, users can ensure the accuracy of the pre-embedding and prefabrication of the columns by using L-shaped anchor bolts to connect with the fixing plate and prefabricated lower columns. This eliminates the need for users to install additional complex diagonal supports to reinforce the prefabricated columns, improving the device's economic efficiency. Furthermore, after quickly installing the prefabricated columns using pre-embedded parts, prefabricated beams and floor slabs can be directly installed. This allows the device to shorten the construction time for each floor, saving users construction time and improving the device's time utilization efficiency and cost control capabilities in the overall construction process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 yes Figure 1 Enlarged view of area a in the middle; Figure 3 This is a bottom view of the prefabricated lower column of this utility model; Figure 4 This is a top view of the embedded part of this utility model; Figure 5 This is a structural schematic diagram of the embedded part of this utility model; Figure 6 yes Figure 1 Enlarged view of area b in the middle.

[0013] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Precast lower column; 12. Precast upper column; 13. Vertical reinforcing steel bars; 14. Embedded parts; 15. Fixing plate; 16. Grouting steel sleeve; 17. L-shaped anchor bolts. Detailed Implementation

[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0015] Example: For example Figures 1 to 5 As shown, this utility model provides a precast column assembly structure, including a precast lower column 11 and a precast upper column 12. The precast lower column 11 is located below the precast upper column 12. Four sets of grooves are opened on one side of the precast lower column 11. Multiple sets of vertical reinforcing bars 13 are pre-embedded in the precast lower column 11 and the precast upper column 12. Four sets of pre-embedded parts 14 are provided at the bottom of the precast lower column 11. A fixing plate 15 for ensuring the pre-embedding accuracy is provided below the precast lower column 11. Four sets of L-shaped anchor bolts 17 are provided at the bottom of the precast lower column 11. Grouting steel sleeves 16 are respectively fitted on the multiple sets of vertical reinforcing bars 13. The precast lower column 11 and the precast upper column 12 are connected by multiple sets of vertical reinforcing bars 13. The connection between the precast lower column 11 and the precast upper column 12 is hollowed out.

[0016] Specifically, the precast lower column 11 and the precast upper column 12 constitute the vertical load-bearing main body, and the upper and lower combination form facilitates on-site installation; the groove provides installation space for the embedded parts 14, and the four embedded parts 14 are located in the groove and are integrated with the precast lower column 11. The vertical reinforcing steel bar 13 serves as the core load-bearing component, passing through the precast lower column 11 and the precast upper column 12 to transfer the load; the fixing plate 15 ensures the embedding accuracy of the embedded parts 14 at the bottom of the precast lower column 11 and the anchor bolts, reducing installation deviation; four L-shaped anchor bolts 17 are embedded on the bottom side, and the embedded parts 14 need to be embedded accurately through the fixing plate 15. The horizontal section is fixed to the fixing plate 15, and the vertical section is connected to the precast lower column 11, which strengthens the anchorage between the precast lower column 11 and the foundation; the grouting steel sleeve 16 is sleeved at the connection of the vertical reinforcing steel bar 13, and the rigid connection of the steel bar is achieved by grouting; the hollowed-out connection provides space for grouting operation and ensures full grouting.

[0017] During the binding process, multiple sets of embedded parts 14 are bound to multiple sets of vertical reinforcing bars 13 on one side. Each of the four sets of L-shaped anchor bolts 17 includes a horizontal section and a vertical section. The horizontal section is embedded inside the fixing plate 15, and the vertical section passes through the precast lower column 11. The connection between the four sets of L-shaped anchor bolts 17 and the precast lower column 11 is fixed with nuts.

[0018] Specifically, the embedded part 14 is tied to the vertical reinforcing bar 13 to enhance the anchorage strength of the reinforcing bar in the precast column and prevent the reinforcing bar from loosening when under stress; the horizontal section of the L-shaped anchor bolt 17 is embedded in the fixing plate 15 to form an anchoring structure into the foundation, and the vertical section is inserted into the precast lower column 11 and then tightened with nuts to rigidly connect the precast lower column 11 with the fixing plate 15 to prevent the column from settling or shifting.

[0019] Both the precast lower column 11 and the precast upper column 12 are T-shaped. The number of vertical reinforcing steel bars 13 is equal to the number of grouting steel sleeves 16. Except for the installation of the embedded parts 14 in this drawing, the other corresponding installation points use conventional embedded grouting steel sleeves 16. The four sets of embedded parts 14 are located in the grooves respectively.

[0020] Specifically, the T-shaped cross-section allows the precast column to reduce its self-weight while ensuring its load-bearing capacity, and adapts to the beam-column joint connection requirements of the frame structure; the number of vertical reinforcing bars 13 and grouting steel sleeves 16 is equal, ensuring that each reinforcing bar is connected through the sleeve, avoiding omissions or misconnections; the embedded part 14 is located in the groove, which not only protects the embedded part 14 from external damage, but also makes the column surface flat, facilitating subsequent decoration or connection of other components.

[0021] like Figure 6 As shown, multiple sets of top fixing bolts are provided above the precast upper column 12. During installation, pre-prepared horizontal pads are placed around the precast column. After adjusting the level, the multiple sets of top fixing bolts are connected to multiple sets of vertical reinforcing bars 13 respectively. The precast lower column 11 and the precast upper column 12 are respectively provided with grouting chambers.

[0022] Specifically, the top fixing bolts are used to connect the precast upper column 12 to the upper structure. After horizontal adjustment, they are fixed to the vertical reinforcing steel bar 13 to ensure that the verticality of the column meets the requirements. The grouting cavity provides a flow channel for the grouting material, so that the grouting steel sleeve 16 is filled with grout. The grout hardens to achieve the bonding between the reinforcing steel bar and the sleeve, thereby enhancing the integrity and force transmission capacity of the connection.

[0023] The specific usage and function of this embodiment are as follows: When using it, the prefabrication and pre-embedding of the structure are first carried out: the prefabricated lower column 11 and the prefabricated upper column 12 (both with T-shaped cross sections) are prefabricated. Four sets of grooves are reserved on one side of the prefabricated lower column 11, and multiple sets of vertical reinforcing bars 13 are prefabricated inside. The four sets of pre-embedded parts 14 are fixed in the grooves at the four corners of the bottom of the prefabricated lower column 11. When binding, the reinforcing bars of the pre-embedded parts 14 are bound to the vertical reinforcing bars 13. At the same time, the horizontal sections of the four sets of L-shaped anchor bolts 17 are prefabricated inside the fixing plate 15, and the vertical sections are reserved to pass through the prefabricated lower column 11. Conventional grouting steel sleeves 16 are fitted on the vertical reinforcing bars 13 at the other connection points.

[0024] On-site installation and positioning: Place the fixing plate 15 in the preset position of the foundation and calibrate the flatness using a level; hoist the precast lower column 11 so that the vertical section of the L-shaped anchor bolt 17 passes through the reserved hole of the precast lower column 11; place the prepared horizontal pads around the column and adjust the height of the pads to calibrate the levelness of the precast lower column 11; after calibration, use nuts to tighten and fix the L-shaped anchor bolt 17 to the precast lower column 11.

[0025] Connecting and fixing the upper and lower columns: During prefabrication, insert the vertical reinforcing steel bars 13 into the corresponding grouting steel sleeves 16 to ensure that the hollow areas at the connection are aligned, and then pull the prefabricated items directly to the site for installation; install the top fixing bolts above the prefabricated upper column 12, and after horizontal adjustment, tighten the bolts to the vertical reinforcing steel bars 13 of the upper column to ensure the verticality of the column.

[0026] Grouting and subsequent construction: Grouting material is injected into the grouting steel sleeve 16 through the grouting cavity of the precast lower column 11 and the upper column. After the grout hardens, a rigid connection is formed. After the fixing is completed, no additional diagonal support is required, and the installation of subsequent components such as precast beams and precast floor slabs can be directly connected.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A precast column assembly structure, comprising a precast lower column (11) and a precast upper column (12), characterized in that: The precast lower column (11) is located below the precast upper column (12). Four sets of grooves are provided on one side of the precast lower column (11). Multiple sets of vertical reinforcing bars (13) are pre-embedded in the precast lower column (11) and the precast upper column (12). Four sets of embedded parts (14) are provided at the bottom of the precast lower column (11). A fixing plate (15) for ensuring the accuracy of the pre-embedding is provided below the precast lower column (11). Four sets of L-shaped anchor bolts (17) are provided at the bottom of the precast lower column (11). Grouting steel sleeves (16) are respectively fitted on the multiple sets of vertical reinforcing bars (13). The precast lower column (11) and the precast upper column (12) are connected by multiple sets of vertical reinforcing bars (13). The connection between the precast lower column (11) and the precast upper column (12) is hollowed out.

2. The precast column assembly structure according to claim 1, characterized in that: During binding, one side of the multiple sets of embedded parts (14) is connected to the multiple sets of vertical reinforcing bars (13). The four sets of L-shaped anchor bolts (17) each include a horizontal section and a vertical section. The horizontal section is embedded inside the fixing plate (15), and the vertical section passes through the precast lower column (11). The connection between the four sets of L-shaped anchor bolts (17) and the precast lower column (11) is fixed by nuts.

3. The precast column assembly structure according to claim 2, characterized in that: The precast lower column (11) and the precast upper column (12) are both T-shaped. The number of vertical reinforcing steel bars (13) is equal to the number of grouting steel sleeves (16). The four sets of embedded parts (14) are located in the grooves respectively.

4. The precast column assembly installation structure according to claim 1, characterized in that: The precast upper column (12) is provided with multiple sets of top fixing bolts. After horizontal adjustment, the multiple sets of top fixing bolts are respectively connected to the multiple sets of vertical reinforcing bars (13). The precast lower column (11) and the precast upper column (12) are respectively provided with grouting cavities.

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