A round pipe column footing pre-burying positioning method and device

Abstract

The application relates to the technical field of building construction, in particular to a round pipe column foot pre-burying positioning method and device. The method comprises the following steps: obtaining a steel structure construction drawing; constructing a round pipe column and pre-burying foot bolt construction model according to the steel structure construction drawing; establishing the positioning connection of the pre-burying foot bolt and vertical main reinforcement according to the construction model; carrying out construction model collision analysis and three-dimensional simulation experiment based on the positioning connection of the pre-burying foot bolt and the concrete main reinforcement; and carrying out steel structure device processing and installation based on the construction model. The engineering quality is improved by optimizing the construction node, the problem that the pre-burying steel plate cannot be reused is solved, the vertical column reinforcement and the foot bolt pre-burying steel plate grinding tool can be freely stretched and contracted to control the position of the reinforcement, the effect of reusing different column diameters is achieved, the construction efficiency is improved, the progress is accelerated, and good economic and social benefits are achieved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method and device for pre-embedded positioning of the base of a circular tube column. Background Technology

[0002] With the vigorous development of the steel structure industry, steel-concrete composite structures fully leverage the advantages of both steel and concrete, offering excellent static and dynamic performance. They also significantly save steel, reduce project costs, accelerate construction, and minimize environmental pollution, aligning with the future direction of building structure development. These structures are widely used in metallurgy, shipbuilding, power, and transportation sectors, and are rapidly entering the modern large-span building projects such as stadiums, super high-rise buildings, and high-rise and super high-rise buildings. Steel structures offer advantages such as high strength, light weight, superior seismic performance, simple and quick construction, and high installation precision. In steel structure design and construction, large-span support columns utilize a transition node method, where the circular tube column is anchored not at the foundation cap but in the middle of the concrete column. The steel tube column is encased in concrete, and the steel frame column is tightly connected to the concrete column reinforcement through welding. However, existing methods and technologies only consider the precise positioning of the column base of the circular tube column, without considering the positioning of the reinforcing bars and the mass production of the positioning embedded plates. In order to simultaneously solve the problem of precise positioning of the anchor bolts embedded in the column base of the circular tube column and the reinforcing bars on the outer side of the column, ensure the thickness of the reinforcing bar protective layer, and solve the conflict between the vertical main reinforcement and the subsequent installation of the circular tube column, there is an urgent need for a method and positioning device for precise positioning and embedding of the vertical main reinforcement at the column base of the circular tube column and for telescopically fixing it. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a method and apparatus for pre-embedding and positioning the base of a circular tube column.

[0004] In a first aspect, the present invention provides a method for pre-embedding and positioning the base of a circular tube column, which adopts the following technical solution:

[0005] A method for pre-embedded positioning of the column base of a circular tube column includes:

[0006] Obtain steel structure construction drawings;

[0007] Construct a construction model of the circular tube column and pre-embedded anchor bolts based on the steel structure construction drawings;

[0008] Establish the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement bars based on the construction model;

[0009] Collision analysis and three-dimensional simulation experiments of the construction model were conducted based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement.

[0010] Steel structure devices are fabricated and installed based on construction models.

[0011] Furthermore, obtaining the steel structure construction drawings includes receiving the steel structure construction drawings provided by the designer and refining the circular pipe columns and pre-embedded anchor bolts based on the steel structure construction drawings.

[0012] Furthermore, the construction model of the circular column and pre-embedded anchor bolts based on the steel structure construction drawings includes obtaining the specifications, length, top elevation, quantity, specifications, location, and distribution of the steel column and anchor bolts, as well as the anchor bolts themselves, based on the design node diagram of the pre-embedded anchor bolts in the steel structure, and then using Tekla steel structure detailing software to establish the construction model of the circular column and pre-embedded anchor bolts.

[0013] Furthermore, the establishment of the positioning relationship between the pre-embedded anchor bolts and the vertical main reinforcement based on the construction model includes determining the connection relationship between the vertical main reinforcement and the circular pipe column based on the construction model and drawing requirements of the circular pipe column and the pre-embedded anchor bolts, determining the distance relationship between the circular pipe column and the concrete column, and finally determining the positioning relationship between the pre-embedded anchor bolts and the vertical main reinforcement through the relationship between the pre-embedded anchor bolts and the circular pipe column.

[0014] Furthermore, the construction model collision analysis and three-dimensional simulation experiment based on the positioning connection of the pre-embedded anchor bolts and the vertical main reinforcement include using simulation software to simulate whether the vertical main reinforcement and the circular pipe column are too close to cause a collision, and whether the distance is too far to prevent welding, wherein the vertical main reinforcement is set in close contact with the circular pipe column.

[0015] Furthermore, the construction model collision analysis and three-dimensional simulation experiment based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement also includes a construction model established by combining Tekla and Revit software. Based on the connection between the anchor bolt pre-embedded device and the vertical main reinforcement, a three-dimensional simulation of the circular pipe column installation process is performed to check whether there is a conflict between the circular pipe column and the vertical main reinforcement, so as to ensure the protective layer thickness required by the design structural drawings.

[0016] Furthermore, the steel structure device processing and installation based on the construction model includes fabricating a disc flange with pre-embedded anchor bolts based on the steel structure construction drawings, and after detailing the nodes according to the vertical main reinforcement of the circular pipe columns of different diameters, setting a telescopic and adjustable movable bracket on the outside of the disc flange.

[0017] Furthermore, the steel structure device processing and installation based on the construction model also includes establishing a control network, establishing multiple measuring stations based on the plane reference points of the construction model using a total station; marking elevation lines on each external facade using a level instrument by placing horizontal control lines with the main structure as the reference; positioning the circular tube column according to the positioning connection of the pre-embedded anchor bolts and vertical main reinforcement, combined with the plane control network and horizontal control lines, and then binding the reinforcement after positioning.

[0018] Secondly, a pre-embedded positioning device for the base of a circular tube column includes:

[0019] A disc flange on the base of a circular tube column, with a rectangular flange at the center of the disc flange. The disc flange and the rectangular flange are connected by a connector. Several vertical main ribs are provided around the disc flange. The four corners of the rectangular flange are fixed by anchor bolts.

[0020] Furthermore, a movable bracket is provided at the position of the vertical main rib on the disc flange to fix the vertical main rib. The movable bracket can expand and contract radially according to the position of the vertical main rib.

[0021] In summary, the present invention has the following beneficial technical effects:

[0022] 1. The technical solution of this invention revolutionizes the process of precise pre-embedding of anchor bolts and control of vertical main reinforcement bars. It pioneers a completely new construction method, effectively controlling the pre-embedding accuracy of steel structure anchor bolts while simultaneously controlling the distance of outer vertical reinforcement bars, reducing the deviation difference of the reinforcement bars, and improving the positioning quality of the reinforcement bars and the quality of the deviation in the precise positioning of the anchor bolts. This increases construction efficiency and saves manpower and resources. It solves the problem of conflict between vertical reinforcement bars and circular tube columns, which is difficult to control and easily leads to conflicts between the steel structure circular tube columns and the vertical steel structure. In various situations requiring tight deadlines and high-quality standard operations, it ensures that the project is completed on schedule, fully demonstrating the exemplary role of building technology development based on project entities, and has good social benefits.

[0023] 2. By optimizing construction nodes, the quality of the project was improved. The anchor bolts and vertical reinforcing bars can be precisely pre-embedded using a single mold. This solved the problem of the inability to reuse the pre-embedded steel plates. The mold for controlling the vertical main reinforcing bars and the anchor bolt pre-embedded steel plates can be freely extended and retracted to control the position of the reinforcing bars, achieving the function of reuse for different column diameters. This improved construction efficiency, accelerated the progress, and had good economic and social benefits.

[0024] 3. This construction method is applicable to the construction of circular tube columns anchored at the half-column position, and is especially suitable for the construction of large-span steel-concrete structure projects such as cultural and sports stadiums, convention centers, airports, and medical buildings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the planar structure of the anchor bolt pre-embedded device according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the elevation structure of the anchor bolt pre-embedded device according to an embodiment of the present invention.

[0027] Figure 3This is a schematic diagram of the structural relationship between the reinforcing bars and the circular tube column in an embodiment of the present invention.

[0028] Among them, 1. movable bracket; 2. disc flange; 3. rectangular flange; 4. anchor bolt; 5. connector; 6. semi-circular support; 7. movable diagonal brace; 8. movable groove; 9. ordinary fastening bolt; 10. movable fastening bolt of disc flange; 11. movable angle steel fixed base; 12. vertical main rib; 13. movable sliding plate. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Reference Figure 1 This embodiment of a method for pre-embedding and positioning the base of a circular tube column includes:

[0032] Obtain steel structure construction drawings;

[0033] Construct a construction model of the circular tube column and pre-embedded anchor bolts based on the steel structure construction drawings;

[0034] Establish the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement bars based on the construction model;

[0035] Collision analysis and three-dimensional simulation experiments of the construction model were conducted based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement.

[0036] Steel structure devices are fabricated and installed based on construction models.

[0037] The process of obtaining steel structure construction drawings includes receiving steel structure construction drawings provided by the designer and refining the circular pipe columns and pre-embedded anchor bolts based on the steel structure construction drawings.

[0038] The construction model of the circular column and pre-embedded anchor bolts based on the steel structure construction drawings includes obtaining the specifications, length, top elevation, quantity, specifications, location and distribution of the steel column and anchor bolts, as well as the anchor bolts, based on the design node drawings of the pre-embedded anchor bolts in the steel structure, and then using Tekla steel structure detailing software to build the construction model of the circular column and pre-embedded anchor bolts.

[0039] The process of establishing the positioning connection between the embedded anchor bolts and the vertical main reinforcement based on the construction model includes determining the connection relationship between the vertical main reinforcement and the circular pipe column based on the construction model and drawing requirements of the circular pipe column and the embedded anchor bolts, simultaneously determining the distance relationship between the circular pipe column and the concrete column, and finally determining the positioning relationship between the embedded anchor bolts and the vertical main reinforcement through the relationship between the embedded anchor bolts and the circular pipe column. Specifically, the connection between the column reinforcement and the circular pipe column is determined through the structural drawings from the design institute (the drawings require the circular pipe column and column reinforcement to be closely fitted and welded; the distance relationship between the circular pipe column and the outer surface of the concrete column is: column reinforcement + stirrups + 28mm steel reinforcement protective layer). Then, the relationship between the embedded device and the vertical main reinforcement is determined through the relationship between the anchor bolts and the circular pipe column.

[0040] The construction model collision analysis and 3D simulation experiment based on the positioning connection of pre-embedded anchor bolts and vertical main reinforcement bars include using simulation software to simulate whether the vertical main reinforcement bars and the circular pipe column are too close, causing a collision, or too far apart, preventing welding. The vertical main reinforcement bars are positioned flush with the circular pipe column. A construction model is established to simulate whether the position of the reinforcement bars collides with the circular pipe column, or whether the distance is too far, subsequently preventing welding. The position of the vertical main reinforcement bars needs to be closely flush with the circular pipe column, and the size and position of the column reinforcement bars need to be determined through pre-embedded devices to ensure that the reinforcement protective layer meets the 28mm requirement.

[0041] The construction model collision analysis and 3D simulation experiment based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement also includes a construction model built using Tekla and Revit software. Based on the connection between the anchor bolt pre-embedded device and the vertical main reinforcement, a 3D simulation of the circular pipe column installation process is performed to check for conflicts between the circular pipe column and the vertical main reinforcement, ensuring the protective layer thickness required by the design structural drawings. Specifically, the construction model built using Tekla and Revit software, based on the connection between the anchor bolt pre-embedded device and the vertical main reinforcement, simulates the 3D installation process of the circular pipe column to check for conflicts between the circular pipe column and the vertical main reinforcement, ensuring the protective layer thickness required by the design structural drawings.

[0042] The steel structure device processing and installation based on the construction model includes fabricating disc flanges with pre-embedded anchor bolts based on steel structure construction drawings, and after detailing the nodes according to the vertical main reinforcement of the circular pipe columns of different diameters, setting up a telescopic and adjustable movable bracket on the outside of the disc flange.

[0043] The steel structure device processing and installation based on the construction model also includes establishing a control network. Based on the plane reference points of the construction model, multiple measuring stations are established using a total station. Horizontal control lines are placed, with the main structure as the reference, and elevation lines are marked on each of the outer facades using a level. The circular pipe column is positioned according to the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement, combined with the plane control network and the horizontal control lines. After positioning, the reinforcement is tied.

[0044] Example 2

[0045] The difference between this embodiment and Embodiment 1 is that this embodiment provides a method for pre-embedding and positioning the column base of a circular tube column, including the following steps:

[0046] 1. Establish a construction model showing the positions of the column base plate and anchor bolts of the circular tube column;

[0047] By refining the design details of the pre-embedded anchor bolts in the steel structure, the connection between the anchor bolts and the steel column bases is established. First, a construction model of the steel column bases should be created. Based on the design drawings, the specifications, lengths, and positions of the reinforcing bars at the column top and base of the steel columns and anchor bolts should be established in the model. Through the model's simulation construction function, the feasibility of the pre-embedded column base construction plan can be tested, any oversights in the installation plan can be identified in advance, and the construction steps can be adjusted and optimized to avoid problems after construction begins.

[0048] 2. Utilize the connection between the pre-embedded bolts and the arrangement of the vertical main reinforcement bars of the circular pipe column;

[0049] By refining the details of the vertical main reinforcement nodes at the base of steel structure columns, the connection between the column reinforcement of various diameter concrete columns and the anchor bolts of the circular tube columns is established. Based on the design drawings, model analysis is performed on the vertical main reinforcement of circular tube columns of different diameters to test the feasibility of the construction equipment and scheme. Deficiencies and areas requiring improvement within the equipment are identified in advance, and further optimization and simulation of construction steps are conducted to avoid subsequent problems. This achieves standardized and batch processing, improves construction efficiency, and reduces the error rate.

[0050] 3. Establish a pre-embedded model of the column base and conduct collision analysis and three-dimensional simulation experiments;

[0051] First, a steel structure column base model should be established. Based on the vertical reinforcement model of the circular tube column by the civil engineering unit, the connection between the steel structure and the vertical main reinforcement of the circular tube column should be established. Then, a collision analysis should be performed on the model and the main reinforcement. The main structure should be verified according to the modeler's requirements. The on-site verification data should be imported into the 3D model to check whether the vertical main reinforcement matches the steel structure circular tube column model. If they do not match, the model needs to be adjusted after communication with the design team. A 3D simulation experiment should be conducted on the steel structure model. Through the model's simulation construction function, the feasibility of the construction equipment and methods should be tested, and any oversights in the plan should be identified in advance. The construction steps should be adjusted and optimized in advance to avoid problems after construction begins.

[0052] 4. On-site layout;

[0053] First, a control network should be established. Based on the plane reference points provided by the owner, multiple survey stations should be established using a total station. Then, horizontal control lines should be placed, mainly based on the main structure. Elevation lines should be marked on each of the outer facades using a level. Based on the anchor bolt positioning diagram of the steel structure column base, the circular pipe columns should be positioned in conjunction with the plane control network and horizontal control lines.

[0054] 5. Fabrication of anchor bolts for round tube columns and vertical reinforcement control devices;

[0055] Through innovative inventions that improve the accuracy of pre-embedded bolts at the base of steel structures and control the position of vertical main reinforcement bars in circular tube columns, the traditional construction method of pre-embedded positioning plates for steel columns is transformed into a set of positioning steel plates that can fix the pre-embedded bolts of vertical main reinforcement bars. A device that can extend and adjust the vertical main reinforcement bars of concrete is then installed on the outside of the circular positioning steel plates.

[0056] Based on the model and processing drawings, the steel structure anchor bolt disc flanges are first fabricated in the steel structure processing plant. Then, according to the different diameters of the vertical steel bars of the circular tube columns in the design drawings, the nodes are individually refined. A telescopic and adjustable movable bracket is set on the outside of the positioning plate. The bracket can be extended and retracted according to the length of the circular tube column to achieve the function of repeated use and to ensure the distance between the steel bars and the circular tube column, which facilitates the subsequent installation of the circular tube column.

[0057] The positioning steel plate uses an 8mm thick rectangular steel plate, which is fabricated according to the dimensions and specifications of the column base bolts in the detailed drawings. An 8mm thick, 100mm wide circular flange is then installed on the outer side of the rectangular plate. Based on the detailed design drawings and model, a retractable support system is installed at the location of the vertical reinforcing bars in the circular ring to fix the vertical main reinforcement. The support system can expand and contract radially according to the position of the column reinforcement, ensuring reusability.

[0058] 6. Anchor bolt pre-embedding and reinforcement control measures;

[0059] After the main team completes the reinforcement binding, the steel structure is handed over for the pre-embedding of column anchor bolts. Coordinate points for inspection are set at the center of the steel formwork. The positioning position of each circular pipe column is determined according to the design details and model. The anchor bolt pre-embedding uses a total station to measure the centerline point and the three-dimensional coordinates of the top of the anchor bolt. The elevation of the anchor bolt is measured using a level. The mold positioning position is above the first concrete pour, which facilitates dismantling and reuse after the concrete is poured.

[0060] 7. Control device for vertical main reinforcement bars of circular tube columns;

[0061] After the anchor bolt positions of the round pipe column are determined, the position of the reinforcing bars is ensured by adjusting the position of the support bracket through the mold ring according to the design drawings. This ensures the thickness of the protective layer of the reinforcing bars and the contact distance with the round pipe column, so as to ensure smooth subsequent installation.

[0062] 8. Concrete pouring and removal of positioning molds;

[0063] After the anchor bolts of the round pipe column are pre-embedded and the reinforcing steel is fixed and inspected, the positioning formwork is removed and moved to the next round pipe column for continued use.

[0064] Regarding materials and equipment, this embodiment mainly includes the following materials:

[0065] The main materials include round pipe columns, anchor bolts, positioning molds, bolts, adjustable telescopic connectors, and stainless steel bolt assemblies.

[0066] The following are key points for quality control during the construction process:

[0067] (1) When measuring and setting out, take permanent coordinate points according to the established setting out plan, and carefully set out the baseline according to the axis position and size specified in the construction drawings. Then, mark the permanent coordinate points at appropriate locations for reference during the construction process.

[0068] (2) After the anchor bolts of the round pipe column are installed, a total station and a level are used to perform a verification measurement. After the measurement is completed, the anchor bolts are fixed to ensure accurate positioning. The adjustable brackets are adjusted according to the drawing requirements to ensure that the distance of the reinforcing bars meets the size requirements of the external verification design drawings.

[0069] Example 3.

[0070] This embodiment provides a pre-embedded positioning device for the base of a circular tube column, including:

[0071] A disc flange on the base of a circular tube column, with a rectangular flange at the center of the disc flange. The disc flange and the rectangular flange are connected by a connector. Several vertical main ribs are provided around the disc flange. The four corners of the rectangular flange are fixed by anchor bolts.

[0072] The disc flange is equipped with a movable bracket at the position where the vertical main rib is located, which is used to fix the vertical main rib. The movable bracket can expand and contract radially according to the position of the vertical main rib.

[0073] Specifically,

[0074] like Figure 1 As shown, the connection between the anchor bolts and the vertical main reinforcement of the circular tube column is described. Anchor bolts 4 are used to fix the circular tube column; the rectangular flange 3 is a device for pre-embedded bolts. The position of the opening in the rectangular flange 3 is determined by the positioning of the bolts, and then the rectangular flange and the circular flange 2 are integrated by welding connectors 5. An adjustable bracket 1 is then installed on the circular flange 2 to fix the vertical main reinforcement. The adjustable bracket 1 adjusts the position of the reinforcement according to the dimensions of the circular tube column and the concrete column (in this embodiment, the concrete column dimensions are 1400mm, 1500mm, 1600mm, and 1800mm).

[0075] like Figure 2 As shown, the movable support includes a movable angle steel fixing support 11, which can be used to fix steel bars of different diameters and positions by moving the telescopic angle steel. The movable groove 8 allows for small-range adjustment of the steel bar distance. The movable slider 13 adjusts the vertical position of the supporting steel bars by moving it up and down. A semi-circular support is provided at the top of the movable slider to fix the position of the vertical main reinforcement.

[0076] like Figure 3 As shown, this illustrates the positional relationship between the reinforcing bars and the circular tube column.

[0077] Working principle:

[0078] The anchor bolt pre-embedded device simultaneously positions the vertical reinforcing bars of the column. The anchor bolts 4 are fixed with rectangular flanges 3, which are welded to the connectors 5. Then, the disc flange 2 (150mm wide) is welded to the connectors 5 (10mm thick). A movable groove (20mm) is made on the disc flange 2. The 100mm movable groove allows for left and right movement within a 100mm range, used to adjust the distance from the reinforcing bar to the center of the circle. A movable support 1 is installed on the movable groove. The movable support moves back and forth through the movable groove. After moving to the desired position, a movable angle steel fixing support 11 is used. The movable angle steel fixing support 11 uses 50mm... Constructed with 5mm angle steel, the upper part of the movable groove is made of angle steel, and the lower part is 50mm angle steel. 40 Constructed from 10 steel plates, the movable support is secured with bolts after being moved to its position to ensure it does not move laterally. A 40mm diameter support is installed on top. 200 A 18mm steel plate is used, and a moving groove is cut into the steel plate. The opening of the moving groove is 20mm. 100, a steel plate 20 is attached to the outside of the moving trough. 80 14 steel plates, which can move up and down via a sliding groove, are fixed in place using ordinary fastening bolts 9. Movable diagonal braces are then installed on the two steel plate supports of the bracket, for 20... 80 The 14mm steel plate provides support. In the 20mm... 80 A semi-circular support 6 is welded to the outside of the 14 steel plate. The semi-circular support is sufficient to hold the 28 / 32 diameter steel bars.

[0079] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for pre-embedding and positioning the base of a circular tube column, characterized in that, include: Obtain steel structure construction drawings; Construct a construction model of the circular tube column and pre-embedded anchor bolts based on the steel structure construction drawings; Establish the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement bars based on the construction model; Collision analysis and three-dimensional simulation experiments of the construction model were conducted based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement. Steel structure components are fabricated and installed based on construction models; The process of fabricating and installing steel structure devices based on the construction model includes fabricating disc flanges with pre-embedded anchor bolts based on steel structure construction drawings, and detailing the nodes according to the vertical main reinforcement of the circular pipe columns of different diameters. A telescopic and adjustable movable support is then installed on the outside of the disc flange. The steel structure device processing and installation based on the construction model also includes establishing a control network. Based on the plane reference points of the construction model, multiple measuring stations are established using a total station. Horizontal control lines are placed, with the main structure as the reference, and elevation lines are marked on each of the outer facades using a level. The circular pipe column is positioned according to the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement, combined with the plane control network and the horizontal control lines. After positioning, the reinforcement is tied.

2. The method for pre-embedding and positioning the base of a circular tube column according to claim 1, characterized in that, The process of obtaining steel structure construction drawings includes receiving steel structure construction drawings provided by the designer and refining the circular pipe columns and pre-embedded anchor bolts based on the steel structure construction drawings.

3. The method for pre-embedding and positioning the base of a circular tube column according to claim 2, characterized in that, The construction model of the circular column and pre-embedded anchor bolts based on the steel structure construction drawings includes obtaining the specifications, length, top elevation, quantity, specifications, location and distribution of the steel column and anchor bolts, as well as the anchor bolts, based on the design node drawings of the pre-embedded anchor bolts in the steel structure, and then using Tekla steel structure detailing software to build the construction model of the circular column and pre-embedded anchor bolts.

4. The method for pre-embedding and positioning the column base of a circular tube column according to claim 3, characterized in that, The process of establishing the positioning relationship between the pre-embedded anchor bolts and the vertical main reinforcement based on the construction model includes determining the connection relationship between the vertical main reinforcement and the circular pipe column based on the construction model and drawing requirements of the circular pipe column and the pre-embedded anchor bolts, determining the distance relationship between the circular pipe column and the concrete column, and finally determining the positioning relationship between the pre-embedded anchor bolts and the vertical main reinforcement through the relationship between the pre-embedded anchor bolts and the circular pipe column.

5. The method for pre-embedding and positioning the column base of a circular tube column according to claim 4, characterized in that, The construction model collision analysis and three-dimensional simulation experiment based on the positioning connection of pre-embedded anchor bolts and vertical main reinforcement include using simulation software to simulate whether the vertical main reinforcement and the circular pipe column are too close to cause a collision, and whether the distance is too far to prevent welding. The vertical main reinforcement is set to fit snugly with the circular pipe column.

6. The method for pre-embedding and positioning the column base of a circular tube column according to claim 5, characterized in that, The construction model collision analysis and three-dimensional simulation experiment based on the positioning connection between the pre-embedded anchor bolts and the vertical main reinforcement also includes a construction model established by combining Tekla and Revit software. Based on the connection between the anchor bolt pre-embedded device and the vertical main reinforcement, a three-dimensional simulation of the circular pipe column installation process is performed to check whether there is a conflict between the circular pipe column and the vertical main reinforcement, so as to ensure the protective layer thickness required by the design structural drawings.

7. A pre-embedded positioning device for the column base of a circular tube column, performing the pre-embedded positioning method for the column base of a circular tube column as described in claim 1, characterized in that, include: A disc flange on the base of a circular tube column, with a rectangular flange at the center of the disc flange. The disc flange and the rectangular flange are connected by a connector. Several vertical main ribs are provided around the disc flange. The four corners of the rectangular flange are fixed by anchor bolts.

8. The pre-embedded positioning device for the base of a circular tube column according to claim 7, characterized in that, A movable bracket is provided at the position of the vertical main rib on the disc flange to fix the vertical main rib. The movable bracket can expand and contract radially according to the position of the vertical main rib.

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