Foundation bolt embedded structure

Abstract

The utility model discloses a foundation bolt pre-buried structure which comprises a foundation bolt arranged in a pre-buried area of a construction foundation, a fixing support arranged in the pre-buried area and a limiting assembly arranged on the top of the construction foundation, the foundation bolt is supported at a set position of the pre-buried area by the fixing support, and the limiting assembly is arranged on the top of the construction foundation. The limiting assembly is used for limiting the foundation bolt to a preset position of a construction foundation; the foundation bolt fixing device can guarantee stable installation of the foundation bolt at a set position, can be flexibly suitable for installation of different foundation heights, and particularly can guarantee construction stability of a large foundation bolt and guarantee installation accuracy of the large foundation bolt.

Description

Technical Field

[0001] This utility model relates to the field of building construction, specifically to an anchor bolt pre-embedded structure. Background Technology

[0002] Anchor bolts are essential building construction components used to install steel columns and other steel or mechanical components into concrete foundations. The accuracy of anchor bolt pre-embedding directly affects the installation quality of the connected components; therefore, how to secure anchor bolts before pouring foundation concrete becomes a critical issue in anchor bolt pre-embedding.

[0003] Anchor bolts are typically embedded after the foundation reinforcement is tied and before concrete pouring. However, during the pouring and vibration of the foundation concrete, the embedded anchor bolts are prone to movement and misalignment, which can adversely affect the installation accuracy of subsequent components. Therefore, it is essential to employ appropriate and advanced construction techniques and tooling to ensure the embedding accuracy of the anchor bolts.

[0004] In the foundation structure of steel structure factory buildings, independent column foundations are common. When there are foundation reinforcement bars below the corresponding position of the steel column, anchor bolts can be fixed by welding them to the non-load-bearing reinforcement bars. However, when there are no reinforcement bars below the corresponding position of the steel column in the independent foundation, the lower end of the pre-embedded anchor bolt will be suspended in the air. This necessitates the use of specialized anchor bolt pre-embedded fixing brackets to ensure reliable fixing of the anchor bolts.

[0005] Currently available anchor bolt fixing brackets have some limitations. First, these brackets are mostly integral fixing brackets, which cannot be flexibly adjusted and assembled according to the foundation height. This necessitates the fabrication of various sizes of brackets, hindering rapid on-site installation. Second, existing anchor bolt pre-embedding fixing methods are mainly suitable for conventional anchor bolts with diameters from D6mm to D30mm. For large anchor bolts with diameters from D45mm to D90mm, due to their significantly increased length and weight, existing pre-embedding fixing methods cannot reliably fix these large anchor bolts, thus failing to guarantee their pre-embedding installation accuracy.

[0006] These problems severely impact the efficiency and accuracy of anchor bolt pre-embedding, especially when dealing with large anchor bolts. Therefore, a new type of anchor bolt pre-embedding structure is urgently needed that can simultaneously meet the following requirements: ensure stable installation of anchor bolts in the designated positions; be flexible for installation at different foundation heights; guarantee the construction stability and installation accuracy of large anchor bolts; effectively solve the problems existing in current technologies, improve the accuracy and efficiency of anchor bolt pre-embedding, and thus provide more reliable foundation support for subsequent building construction. Utility Model Content

[0007] In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide an anchor bolt pre-embedded structure that can ensure the stable installation of anchor bolts in the set position and can be flexibly applied to the installation of different foundation heights. In particular, it can ensure the construction stability of large anchor bolts and ensure their installation accuracy.

[0008] The present invention relates to an anchor bolt pre-embedded structure, comprising an anchor bolt disposed in a pre-embedded area of ​​a construction foundation, and a fixed bracket disposed in the pre-embedded area. The height of the fixed bracket is controllably adjustable. The anchor bolt is supported by the fixed bracket at a set position in the pre-embedded area. The present invention also includes a limiting component disposed on the top of the construction foundation, the limiting component being used to limit the anchor bolt to a preset position on the construction foundation.

[0009] Furthermore, the anchor bolts include several anchor bolts set in the pre-embedded area, and the several anchor bolts are set in their respective corresponding preset positions to form a group of anchor bolts, and the several anchor bolts in the group of anchor bolts are parallel to each other.

[0010] Furthermore, the limiting component includes a positioning plate, which has a plurality of positioning holes corresponding to the number of anchor bolts in a group of anchor bolts. Each anchor bolt passes through one positioning hole, so that the positioning plate limits the group of anchor bolts.

[0011] Furthermore, the fixed bracket includes a support lattice, which includes standard segments and variable segments. The standard segments include several segments stacked along the height direction, and the variable segments are assembled at the lower end of the standard segments located at the bottom. The fixed bracket is set in the pre-embedded area of ​​the construction foundation through the variable segments.

[0012] Furthermore, the standard segment includes supporting columns and connecting transverse sections. The supporting columns include several columns with the same number of anchor bolts as a group of anchor bolts. The connecting transverse sections consist of several columns, and adjacent supporting columns are connected by the connecting transverse sections.

[0013] Each anchor bolt is supported by a corresponding support column in the standard segment at the top, so that the fixing bracket supports a group of anchor bolts.

[0014] Furthermore, the standard segment also includes a diagonal bracing beam that connects the supporting column and the connecting transverse diaphragm.

[0015] Furthermore, the construction foundation includes a cushion layer, and the supporting lattice includes a base plate supported by the cushion layer.

[0016] Furthermore, multiple groups of anchor bolts are set in the pre-embedded area of ​​the construction foundation. The positioning plate includes several pieces with the same number of anchor bolt groups. Each positioning plate corresponds to a group of anchor bolts and limits their position.

[0017] The limiting component also includes a connecting rod that connects adjacent positioning plates.

[0018] Furthermore, the support grid includes several groups that correspond to the number of anchor bolt groups, and each group of the support grid supports a set of anchor bolt groups at a predetermined position in the pre-embedded area in a one-to-one correspondence.

[0019] Furthermore, the fixed bracket also includes a connecting beam that connects adjacent support lattices.

[0020] The beneficial effects of this utility model are as follows: The anchor bolt pre-embedding structure disclosed in this utility model achieves three-dimensional spatial positioning of the anchor bolts through the synergistic action of the fixed bracket and the limiting component. The fixed bracket provides vertical support force to resist the buoyancy during concrete pouring; the limiting component controls the accuracy of the planar position and prevents horizontal displacement caused by vibration, thus ensuring the construction stability and installation accuracy of large anchor bolts. Compared with traditional anchor bolt support methods, the fixed bracket of this structure is also adjustable, especially since the support lattice of the fixed bracket includes detachable standard segments and variable segments, which can adapt to different foundation height requirements. For the pre-embedding of large anchor bolts, the construction stability can be effectively guaranteed by strengthening the cross-sectional dimensions and connection nodes of the fixed bracket; it effectively solves the problems existing in the prior art, improves the accuracy and efficiency of anchor bolt pre-embedding, and thus provides more reliable foundation support for subsequent building construction. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the fixed bracket of this utility model;

[0024] Figure 3 This is a top view of the fixed bracket of this utility model.

[0025] Figure 4 This is a side view of the fixed bracket of this utility model.

[0026] Figure 5 This utility model Figure 2 A schematic diagram of the AA-direction structure;

[0027] Figure 6This is a schematic diagram of the main structure of the limiting component of this utility model;

[0028] Figure 7 This is a top view of the limiting component of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the anchor bolt group of this utility model;

[0030] Figure 9 This is a schematic diagram of the main structure of the anchor bolt of this utility model;

[0031] Figure 10 This is a top view of the anchor bolt of this utility model. Detailed Implementation

[0032] Figures 1-10 As shown in the figure, the anchor bolt pre-embedded structure in this embodiment includes anchor bolts 1 set in the pre-embedded area of ​​the construction foundation 001. The pre-embedded area of ​​the anchor bolts 1 is determined by the actual construction area of ​​the anchor bolts 1, which will not be described in detail here. In this solution, the anchor bolts 1 are large anchor bolts for large steel columns of tall industrial plants, with diameters ranging from D450mm to D90mm, lengths 25 times their diameters, and weights far exceeding those of conventional D6mm to D30mm anchor bolts. m-type anchor bolts; these large anchor bolts are long and deeply embedded, and their structure is often that of welded plate anchor bolts, that is, the bottom of the anchor bolt 1 is welded with a square plate 101. The square plate 101 is a steel plate with a thickness of 20-40mm. Four backing plates 102 are also set between the anchor bolt 1 and the square plate 101. The four backing plates 102 are respectively located at the four corners of the square plate 101. The backing plates 102 are trapezoidal steel plates with a thickness of 8mm. The setting of the square plate 101 and the backing plates 102 increases the anchoring force between the anchor bolt 1 and the construction foundation 001.

[0033] The system also includes fixed supports installed within the pre-embedded area. The height of these supports is adjustable, and the anchor bolt 1 is supported by the supports at a predetermined position within the pre-embedded area. The structure of the fixed supports includes detachable and assembleable stacked structures, or adjustable and lockable sleeve structures, etc., which will not be elaborated here. It also includes a limiting component installed on the top of the construction foundation 001. The limiting component is used to limit the anchor bolt 1 to a predetermined position on the construction foundation 001. The limiting component can be a plate structure with limiting channels, or a tie rod or strut with limiting function, etc., which will not be elaborated here. This solution achieves three-dimensional spatial positioning of the anchor bolt 1 through the synergistic effect of the fixed supports and the limiting component. The fixed supports provide vertical support force to resist buoyancy during concrete pouring; the limiting component controls the accuracy of the planar position, preventing horizontal displacement caused by vibration, thus ensuring the construction stability and installation accuracy of large anchor bolts. Compared with traditional support methods for anchor bolt 1, the fixed supports in this structure are also adjustable, adapting to different foundation height requirements. For large anchor bolts, strengthening the cross-sectional dimensions and connection nodes of the fixing brackets can effectively ensure construction stability; effectively solve the problems existing in the current technology, improve the accuracy and efficiency of anchor bolt 1 pre-embedding, and thus provide more reliable foundation support for subsequent building construction.

[0034] In this embodiment, the anchor bolts 1 include several anchor bolts set in the pre-embedded area. These anchor bolts 1 are arranged in their respective preset positions to form an anchor bolt group. The anchor bolts 1 in this group are parallel to each other, facilitating the subsequent installation and fixing of the positioning plate 4, thereby simplifying the construction process and improving construction efficiency. Specifically, the anchor bolt group consists of multiple anchor bolts 1 arranged parallel to each other in the pre-embedded area according to a preset arrangement. This helps improve the stability and installation accuracy of the overall structure, especially its ability to resist external disturbances during concrete pouring. The position of each anchor bolt 1 is precisely set to ensure its stability during concrete pouring. As a preferred embodiment, the anchor bolts 1 in the anchor bolt group can be arranged in a rectangular or circular array, and multiple groups of anchor bolt groups can also be arranged in rectangular or circular arrays. The specific arrangement method is determined according to the actual engineering requirements and will not be elaborated here.

[0035] In this embodiment, the limiting component includes a positioning plate 4 disposed on the construction foundation 001. The top surface of the positioning plate 4 is flush with the top surface of the construction foundation 001. The positioning plate 4 has a plurality of positioning holes 41, the same number as the number of anchor bolts 1 in a group of anchor bolts. Each anchor bolt 1 passes through one positioning hole 41, so that the positioning plate 4 limits the group of anchor bolts. The positioning plate 4 can be made of steel plate with a thickness of 10-20mm to ensure sufficient rigidity to resist the impact force during concrete pouring. By setting the positioning plate 4 with positioning holes 41, the precise limiting of the anchor bolt group is achieved. During the concrete pouring process, the rigid design of the positioning plate 4 can withstand the impact force during concrete pouring, effectively preventing the anchor bolts 1 from shifting or tilting, and ensuring that they remain in the preset position. Compared with the prior art, this solution has a simple and reliable structure, is easy to install, and is especially suitable for the positioning and fixing of large groups of anchor bolts; the precise setting of the positioning holes 41 can ensure the relative positional accuracy between the anchor bolts 1, providing an accurate foundation for the subsequent installation of components.

[0036] In this embodiment, the fixed bracket includes a support grid 2, which includes standard segments 201 and variable segments 202. The standard segments 201 consist of several segments stacked along the height direction, and the variable segments 202 are assembled at the lower end of the standard segments 201 located at the bottom. The fixed bracket is installed in the pre-embedded area of ​​the construction foundation 001 via the variable segments 202. The standard segments 201 are stacked in segments to achieve height adjustment of the support grid 2. Adjacent standard segments 201 and between standard segments 201 and variable segments 202 can be fixed by means of flange connection or welding. Adjustable shims can be provided at the bottom of the variable segments 202 to adapt to uneven foundation surfaces, ensuring that the support grid 2 has sufficient strength and rigidity. The height of a single segment of the standard segment 201 can be designed as a modular size such as 0.5 meters or 1 meter, and the variable segments 202 are set accordingly based on the height of the support grid 2, facilitating rapid on-site assembly of the support grid 2. This solution addresses the problem of traditional fixed supports being unable to adapt to different foundation heights through a segmented, modular design of the supporting lattice 2. During use, variable segments 202 located at the bottom of the supporting lattice are installed within the pre-embedded area of ​​the construction foundation 001. Several standard segments 201 are stacked layer by layer on the variable segments 202 and welded together to form a whole until the height of the supporting lattice 2 meets the preset dimensions. Anchor bolts 1 are then installed on the standard segments 201 located at the top of the supporting lattice 2, using methods such as bolt assembly or welding; this solution uses welding. The stacked structure of the standard segments 201 allows for flexible adjustment of the support height according to the actual foundation depth, avoiding increased costs and delays associated with customized production. The variable segments 202 enable the support to adapt to different foundation construction conditions, ensuring the stability of the overall structure. The segmented structure facilitates transportation and on-site assembly, making it particularly suitable for the pre-embedded fixing of large anchor bolts. It effectively resists the impact and vibration during concrete pouring, ensuring the positioning accuracy of the anchor bolts 1.

[0037] In this embodiment, the construction foundation 001 includes a cushion layer 002, and the supporting lattice 2 includes a base plate 3 supported by the cushion layer 002. The base plate 3 is located at the bottom of the variable segment 202, and the supporting lattice 2 is set on the cushion layer 002 via the base plate 3. In this scheme, the cushion layer 002 is the top surface of the construction site. The base plate 3 can be made of steel plate or precast concrete slab, and its planar dimensions must be larger than the bottom cross-sectional dimensions of the supporting lattice 2 to ensure stability. As a preferred embodiment, the lower surface of the base plate 3 can be provided with anti-slip texture to enhance the friction coefficient between it and the cushion layer 002. The connection method between the base plate 3 and the bottom of the supporting lattice 2 includes, but is not limited to, bolt connection, welding, or plug-in snap-fit ​​structures. In this scheme, the base plate 3 is assembled to the cushion layer 002 by bolts, which will not be described in detail here. The vertical load of the supporting lattice 2 is evenly transferred to the cushion layer 002 through the base plate 3, effectively avoiding damage to the cushion layer 002 caused by local stress concentration, and significantly improving the overall stability of the support system, especially suitable for the large overturning moment generated during the construction of large anchor bolts. During the concrete pouring process, the base plate 3 can effectively suppress the settlement and horizontal displacement of the supporting lattice 2, thereby ensuring the pre-embedding accuracy of the anchor bolt group.

[0038] In this embodiment, the standard segment 201 includes supporting columns 2001 and connecting transverse sections 2002. The supporting columns 2001 include several columns, the same number as the number of anchor bolts 1 in a group of anchor bolts. The connecting transverse sections 2002 consist of several columns, and adjacent supporting columns 2001 are connected by the connecting transverse sections 2002. The standard segment 201 also includes diagonal bracing beams 2003 that connect the supporting columns 2001 and the connecting transverse sections 2002. Each anchor bolt 1 is supported by the corresponding supporting column 2001 in the top standard segment 201, so that the fixed bracket supports a group of anchor bolts. The supporting columns 2001, connecting transverse sections 2002, and diagonal bracing beams 2003 can be made of square steel pipes, angle steel, channel steel, or I-beams, and fixed by bolting or welding. In this design, the supporting columns 2001, connecting diaphragms 2002, and diagonal bracing beams 2003 are all made of angle steel. The standard segment 201 includes a rectangular steel lattice column formed by welding the supporting columns 2001 and connecting diaphragms 2002. The supporting columns 2001 and connecting diaphragms 2002 within the rectangular steel lattice column are also connected by diagonal bracing beams 2003. Figure 3As shown, this scheme only adds a diagonal bracing beam 2003 to the diagonal of the rectangular lattice column to improve the structural strength. In practical applications, the diagonal bracing beam 2003 can also be arranged in an "X" shape or an "⊥" shape, etc., which will not be elaborated here. By adding the diagonal bracing beam 2003, this scheme enables the rectangular steel lattice column to form a stable triangular force system, effectively improving the overall stiffness and lateral displacement resistance of the fixed support. The variable segment 202 in this scheme is roughly the same as the standard segment 201 in structure, the only difference being that the bottom of the variable segment 202 is welded with a base plate 3. The base plate 3 consists of several pieces corresponding to the number of supporting columns 2001, and each base plate 3 is set at the bottom of the corresponding supporting column 2001. Of course, the supporting columns 2001 of the variable segment 202 can also be connected by a sleeve structure with threads to realize the corresponding length extension to adapt to construction areas with different heights, which will not be elaborated here.

[0039] In this structure, the support column 2001 directly bears the vertical load of the anchor bolt 1, while the connecting diaphragm 2002 effectively transmits the horizontal force and prevents lateral deformation of the support column 2001. The diagonal bracing beam 2003 prevents the support lattice 2 from twisting and deforming. This structure ensures the positional stability of the large anchor bolt group during concrete vibration, avoiding misalignment. Compared to existing integral fixed supports, this structure has better adaptability, allowing for quick adjustment of the support spacing for anchor bolts 1 of different specifications. Furthermore, it effectively resists disturbances caused by vibration during concrete pouring, ensuring the installation accuracy of the large anchor bolts.

[0040] In this embodiment, multiple groups of anchor bolts are set within the pre-embedded area of ​​the construction foundation 001. The positioning plate 4 includes several pieces corresponding to the number of anchor bolt groups, and each positioning plate 4 corresponds one-to-one with a group of anchor bolts to limit their position. The limiting assembly also includes connecting rods 5 that connect adjacent positioning plates 4. Figure 1 , Figure 7 and Figure 8 As shown, the anchor bolt groups in this scheme are arranged in two parallel groups. The positioning components are two steel plates corresponding to the two anchor bolt groups. The connecting rod 5 includes two angle steels that connect the two positioning plates 4, as shown. Figure 7 As shown, two angle steels are respectively connected to the front and rear ends of two positioning plates 4. By setting multiple independent positioning plates 4 to correspond to each group of anchor bolts, and using connecting rods 5 to connect and fix adjacent positioning plates 4, the problem of synchronous positioning of multiple groups of anchor bolts in large foundation structures can be effectively solved. The setting of connecting rods 5 enhances the stability of the overall structure, prevents the positioning plates 4 from shifting during concrete pouring, and ensures that each group of anchor bolts maintains a precise relative position. It is suitable for engineering scenarios such as large industrial plants that require the simultaneous pre-embedding of multiple groups of anchor bolts.

[0041] In this embodiment, the supporting lattice 2 includes several groups corresponding to the number of anchor bolt groups. Each group of supporting lattice 2 supports a group of anchor bolts at a designated position in the pre-embedded area in a one-to-one correspondence. The fixing bracket also includes connecting beams 6 that connect adjacent supporting lattice 2. The connecting beams 6 can be made of angle steel, channel steel, I-beams, or rectangular steel pipes, and are fixed to the supporting columns 2001 of the supporting lattice 2 by bolting or welding. Figure 2 and Figure 3 As shown, the connecting beam 6 is an angle steel arranged horizontally, with both ends welded and fixed to the standard segments 201 of the adjacent supporting lattice 2 to form a stable spatial frame structure. Several connecting beams 6 are arranged between adjacent supporting lattices 2. Alternatively, the connecting beams 6 can be arranged in a cross-shaped configuration between two sets of supporting lattices 2, or in a grid pattern, etc., so that all supporting lattices 2 form a spatially coordinated force-bearing system to enhance the overall structure's torsional resistance. Further details are omitted here. Through the combination of modular supporting lattices 2 and connecting beams 6, the synchronous and precise positioning of multiple groups of anchor bolts is achieved. The addition of connecting beams 6 effectively improves the stiffness and stability of the overall support system, preventing relative displacement of the supporting lattices 2 during concrete pouring. Specifically, the connecting beams 6 connect the originally independent supporting lattices 2 into a unified force-bearing system, uniformly transmitting construction loads and avoiding localized stress concentration; simultaneously, by constraining the horizontal displacement of the supporting lattices 2, it significantly improves the overturning resistance of the support and ensures the relative positional accuracy between the anchor bolt groups. This structure is particularly suitable for the synchronous pre-embedding of multiple rows of anchor bolts 1 in the foundation of large equipment, and solves the technical problem that traditional fixed bracket tooling cannot guarantee the relative positioning accuracy between groups.

[0042] In this embodiment, the construction foundation 001 also includes a steel reinforcement frame 003 set at the edge of the construction foundation 001. The steel reinforcement frame 003 is set on the top of the pad 002, and the space formed by the steel reinforcement frame 003 and the pad 002 is the pre-embedded area of ​​the anchor bolts 1. During construction, the fixed brackets of the preset height are first assembled, and then the fixed brackets are set on the pad 002. Then the anchor bolt group is set on the fixed brackets accordingly, and the corresponding anchor bolt group is limited by the limiting component. Finally, concrete is poured in the pre-embedded area to pre-embed the anchor bolt group in the construction foundation 001. It should be understood that during the pouring process, the anchor bolts 1 can be continuously tracked, monitored and adjusted according to the construction environment to improve the quality of the finished product.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An anchor bolt pre-embedded structure, characterized in that: The device includes anchor bolts installed in the pre-embedded area of ​​the construction foundation, and fixed brackets installed in the pre-embedded area. The anchor bolts are supported by the fixed brackets at a set position in the pre-embedded area. The device also includes a limiting component installed on the top of the construction foundation, which is used to limit the anchor bolts to a preset position on the construction foundation.

2. The anchor bolt pre-embedded structure according to claim 1, characterized in that: The anchor bolts include several anchor bolts set in the pre-embedded area. The several anchor bolts are set in their respective preset positions to form a group of anchor bolts. The anchor bolts in the group of anchor bolts are parallel to each other.

3. The anchor bolt pre-embedded structure according to claim 2, characterized in that: The limiting component includes a positioning plate, which has a plurality of positioning holes corresponding to the number of anchor bolts in a group of anchor bolts. Each anchor bolt passes through one positioning hole, so that the positioning plate limits the group of anchor bolts.

4. The anchor bolt pre-embedded structure according to claim 3, characterized in that: The fixed support includes a support grid, which includes standard segments and variable segments. The standard segments include several segments stacked along the height direction, and the variable segments are assembled at the lower end of the standard segments located at the bottom. The fixed support is set in the pre-embedded area of ​​the construction foundation through the variable segments.

5. The anchor bolt pre-embedded structure according to claim 4, characterized in that: The standard segment includes supporting columns and connecting transverse sections. The supporting columns include several columns with the same number of anchor bolts as a group of anchor bolts. The connecting transverse sections are several columns, and adjacent supporting columns are connected by connecting transverse sections. Each anchor bolt is supported by a corresponding support column in the standard segment at the top, so that the fixing bracket supports a group of anchor bolts.

6. The anchor bolt pre-embedded structure according to claim 5, characterized in that: The standard segment also includes a diagonal bracing beam that connects the supporting columns and the connecting transverse diaphragms.

7. The anchor bolt pre-embedded structure according to claim 4, characterized in that: The construction foundation includes a cushion layer, and the supporting lattice includes a base plate supported by the cushion layer.

8. The anchor bolt pre-embedded structure according to claim 4, characterized in that: Multiple groups of anchor bolts are set in the pre-embedded area of ​​the construction foundation. The positioning plate includes several pieces with the same number of anchor bolt groups. Each positioning plate corresponds to a group of anchor bolts and limits their position. The limiting component also includes a connecting rod that connects adjacent positioning plates.

9. The anchor bolt pre-embedded structure according to claim 8, characterized in that: The support grid includes several groups that correspond to the number of anchor bolt groups. Each group of the support grid supports a set of anchor bolt groups at a predetermined position in the pre-embedded area in a one-to-one correspondence.

10. The anchor bolt pre-embedded structure according to claim 9, characterized in that: The fixed support also includes a connecting beam that connects adjacent support lattices.

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