Tubular column foot pre-embedding positioning method and device

Abstract

The invention relates to the technical field of building construction, in particular to a tubular column foot pre-embedding positioning method and device. The method comprises the steps of obtaining a steel structure construction drawing; constructing a tubular column and embedded foundation bolt construction model according to a steel structure construction drawing; according to the construction model, a positioning relation between the embedded foundation bolts and the vertical main reinforcements is established; construction model collision analysis and a three-dimensional simulation experiment are carried out based on the positioning relation of the embedded foundation bolts and the concrete main reinforcements; and processing and mounting the steel structure device based on the construction model. By optimizing construction nodes, the engineering quality is improved, the problem that the embedded steel plate cannot be reused is solved, the vertical column rib and foundation bolt embedded steel plate grinding tool is controlled to freely stretch out and draw back to control the position of the reinforcing steel bar, the effect of reusing different column diameters is achieved, the construction efficiency is improved, the progress is accelerated, and the construction cost is reduced. And the method has good economic and social benefits.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a method and a device for pre-embedded positioning of a circular tube column foot. Background Art

[0002] With the vigorous development of the steel structure industry, the steel-concrete composite structure gives full play to the reasonable combination of the advantages of steel and concrete. It not only has excellent static and dynamic working performance, but also can save a lot of steel, reduce project costs and speed up construction progress. It has less environmental pollution and conforms to the development direction of building structures. It has been widely used in the construction of metallurgy, shipbuilding, electricity, transportation and other departments, and has entered modern large-span construction projects such as stadiums, super-high-rise and high-rise and super-high-rise buildings with a rapid momentum. Steel structure has the advantages of high strength, light weight, excellent seismic performance, simple and fast construction, and high installation accuracy. In the design and construction of steel structures, the large-span support columns of steel structures adopt the conversion node method, that is, the rooting position of the round tube column is not in the foundation pedestal but in the middle of the concrete column. The steel tube column is wrapped with concrete, and the steel column is tightly connected with the concrete column reinforcement and welded. However, the existing methods and technologies only consider the precise positioning of the base of the circular tube column, without considering the positioning of the steel bars and the mass production of the positioning embedded plates. In order to simultaneously solve the precise positioning of the embedded anchor bolts at the base of the circular tube column and the steel bars on the outside of the column, ensure the thickness of the steel bar protective layer and solve the conflict problem between the vertical column bars and the subsequent installation of the circular tube column, there is an urgent need for a method and positioning device for accurately positioning the base of the circular tube column, embedding the vertical main bars of the column in a telescopic manner and fixing them. Summary of the invention In order to solve the above-mentioned problems, the present invention provides a method and device for pre-embedded positioning of the base of a circular tube column.

[0003] In the first aspect, the present invention provides a method for pre-embedded positioning of a circular tube column foot, which adopts the following technical solution: A method for pre-embedding and positioning a column foot of a circular tube column, comprising: Obtain steel structure construction drawings; Construct the construction model of the round tube column and embedded anchor bolts according to the steel structure construction drawings; Establish the positioning connection between the embedded anchor bolts and the vertical main reinforcement according to the construction model; Construction model collision analysis and three-dimensional simulation experiments were conducted based on the positioning relationship between embedded anchor bolts and concrete main reinforcement; Processing and installation of steel structure devices based on construction models.

[0004] Furthermore, the obtaining of the steel structure construction drawings includes receiving the steel structure construction drawings provided by the designer, and deepening the circular tube columns and pre-embedded anchor bolts according to the steel structure construction drawings.

[0005] Furthermore, the construction model of the circular tubular column and the embedded anchor bolts is constructed according to the steel structure construction drawings, including obtaining the specifications, lengths, top elevations of the steel columns and the anchor bolts and the number, specifications, positions and distribution of the column foot steel bars according to the design node diagram of the embedded anchor bolts of the steel structure, and using Tekla steel structure deepening software to establish the construction model of the circular tubular column and the embedded anchor bolts.

[0006] Furthermore, the positioning relationship between the embedded anchor bolts and the vertical column reinforcement is established according to the construction model, including judging the connection relationship between the vertical column reinforcement and the circular tube column according to the construction model and drawing requirements of the circular tube column and the embedded anchor bolts, and determining the distance relationship between the circular tube column and the concrete column at the same time, and finally determining the positioning relationship between the embedded anchor bolts and the vertical column reinforcement through the relationship between the embedded anchor bolts and the circular tube column.

[0007] Furthermore, the construction model collision analysis and three-dimensional simulation experiments are carried out based on the positioning connection between the embedded anchor bolts and the concrete main reinforcement, including using simulation software to simulate whether the distance between the vertical column reinforcement and the circular tube column is too close to cause a collision, and whether the distance is too far to make welding impossible, wherein the column main reinforcement of the vertical column reinforcement is set to fit the circular tube column.

[0008] Furthermore, the construction model collision analysis and three-dimensional simulation experiment based on the positioning connection between the embedded anchor bolts and the concrete main reinforcement also includes a construction model established by combining Tekla software and Revit software, and a three-dimensional simulation of the circular tube column installation process is performed according to the connection between the embedded anchor bolt device and the column main reinforcement to check whether there is a conflict between the circular tube column and the column main reinforcement, so as to ensure the protective layer thickness required by the design structure drawings.

[0009] Furthermore, the processing and installation of the steel structure device based on the construction model includes making a positioning circular steel plate for embedded anchor bolts based on the steel structure construction drawings, and deepening the nodes according to the vertical column reinforcements of round tube columns with different diameters, and then setting a retractable and adjustable column vertical reinforcement bracket on the outside of the positioning circular steel plate.

[0010] Furthermore, the processing and installation of steel structure devices based on the construction model also includes establishing a control network, establishing multiple measuring stations through a total station based on the plane reference points of the construction model; placing horizontal control lines, the horizontal control lines are based on the main structure, and elevation lines are marked on the outer facades through a level; according to the positioning relationship between the embedded anchor bolts and the vertical main reinforcement, the circular tube column is positioned in combination with the plane control network and the horizontal control lines, and the steel bars are tied after positioning.

[0011] In a second aspect, a pre-embedded positioning device for a circular tube column foot comprises: A disc flange on the base of a circular tubular column, wherein a rectangular flange is arranged at the center of the disc flange, the disc flange and the rectangular flange are connected via a connecting piece, a plurality of vertical column bars are arranged on the periphery of the disc flange, and the four corners of the rectangular flange are respectively fixed by anchor bolts.

[0012] Furthermore, a retractable bracket is provided at the position where the vertical column reinforcement is provided on the steel plate ring, and is used to fix the vertical column reinforcement. The retractable bracket is radially retracted according to the position of the vertical column reinforcement.

[0013] In summary, the present invention has the following beneficial technical effects: 1. The technical solution of the present invention has innovated the process of accurately embedding the anchor bolts and controlling the vertical column bars of the columns. The construction has created a new construction method, which effectively controls the embedding accuracy of the steel structure anchor bolts and can control the distance of the outer vertical steel bars at the same time, reducing the deviation of the steel bars, while improving the positioning quality of the steel bars and the deviation of the accurate positioning of the anchor bolts, improving the construction efficiency, and saving manpower and material resources. The problem of the conflict between the vertical steel bars of the column and the round tube column has been solved. The control of the vertical steel bars is not easy, which can easily lead to the conflict between the round tube steel column of the steel structure and the vertical steel structure. In various rush-to-schedule and high-quality standard operations, it can ensure that the project is completed on schedule, which fully reflects the demonstration role of the development of construction technology based on project entities and has good social benefits.

[0014] 2. The quality of the project is improved by optimizing the construction nodes. The anchor bolts can be accurately embedded with the vertical steel bars through one mold. The problem that the embedded steel plates cannot be reused is solved. The vertical column bars and the anchor bolt embedded steel plate molds can be freely extended and retracted to control the position of the steel bars, so that different column diameters can be reused, which improves the construction efficiency, speeds up the progress, and has good economic and social benefits.

[0015] 3. This construction method is suitable for the construction of circular tubular columns rooted in the half-column position, especially for the construction of large-span steel-concrete structure projects such as cultural and sports venues, exhibition centers, airports, and medical buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the plan structure of the anchor bolt pre-embedded device according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the elevation structure of the anchor bolt pre-embedded device according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the positional relationship between the circular tubular column reinforcement and the circular tubular column in an embodiment of the present invention.

[0019] Among them, 1. movable bracket; 2. disc flange; 3. rectangular flange; 4. anchor bolts; 5. connecting parts; 6. semicircular support; 7. movable diagonal brace; 8. movable groove; 9. ordinary fastening bolts; 10. disc flange movable fastening bolts; 11. movable angle steel fixed base; 12 column vertical main reinforcement; 13. movable sliding plate. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] Example 1 Reference Figure 1 A method for pre-embedded positioning of a circular tube column foot in this embodiment includes: Obtain steel structure construction drawings; Construct the construction model of the round tube column and embedded anchor bolts according to the steel structure construction drawings; Establish the positioning connection between the embedded anchor bolts and the vertical main reinforcement according to the construction model; Construction model collision analysis and three-dimensional simulation experiments were conducted based on the positioning relationship between embedded anchor bolts and concrete main reinforcement; Processing and installation of steel structure devices based on construction models.

[0022] The obtaining of the steel structure construction drawings includes receiving the steel structure construction drawings provided by the designer, and deepening the circular pipe columns and embedded anchor bolts according to the steel structure construction drawings.

[0023] The method of constructing a construction model of a circular tube column and embedded anchor bolts according to the steel structure construction drawings includes obtaining the specifications, length, top elevation, and number, specifications, position, and distribution of steel columns and anchor bolts and the column foot steel bars according to the design node diagram of the steel structure embedded anchor bolts, and using Tekla steel structure deepening software to establish a construction model of a circular tube column and embedded anchor bolts.

[0024] The positioning relationship between the embedded anchor bolts and the vertical column reinforcement is established according to the construction model, including judging the connection relationship between the vertical column reinforcement and the circular tube column according to the construction model of the circular tube column and the embedded anchor bolts and the requirements of the drawings, and determining the distance relationship between the circular tube column and the concrete column, and finally determining the positioning relationship between the embedded anchor bolts and the vertical column reinforcement through the relationship between the embedded anchor bolts and the circular tube column. Among them, the relationship between the column reinforcement and the circular tube column is determined through the structural drawings of the design institute (the drawings require that the circular tube column and the column-column reinforcement need to be welded tightly, and the distance relationship between the circular tube column and the outer skin of the concrete column is: column-column reinforcement + stirrups + 28mm steel bar protective layer), and then the relationship between the anchor bolts and the circular tube column is determined. The relationship between the embedded device and the column main reinforcement.

[0025] The construction model collision analysis and three-dimensional simulation experiment based on the positioning connection between the embedded anchor bolts and the concrete main reinforcement include using simulation software to simulate whether the distance between the vertical column reinforcement and the round tube column is too close to cause a collision, and whether the distance is too far to make welding impossible, wherein the column main reinforcement of the vertical column reinforcement is set in close proximity with the round tube column. Among them, a construction model is established to simulate whether the position of the steel bar collides with the round tube column, or the distance is too far, which subsequently makes welding impossible. The position of the column main reinforcement needs to be close to the round tube column, and the size and position of the column steel bar need to be determined by the embedded device and ensure that the steel bar protection layer meets 28mm.

[0026] The construction model collision analysis and three-dimensional simulation experiment based on the positioning connection between the embedded anchor bolts and the main concrete reinforcement also includes a construction model established by combining Tekla software and Revit software, and a three-dimensional simulation of the installation process of the round tube column is performed according to the connection between the embedded anchor bolt device and the main column reinforcement, to check whether there is a conflict between the round tube column and the main column reinforcement, and to ensure the thickness of the protective layer required by the design structure drawings. Among them, the construction model is established by Tekla and Revit software, and the installation process of the round tube column is simulated in three dimensions according to the connection between the embedded anchor bolt device and the main column reinforcement, to check whether there is a conflict between the round tube column and the main column reinforcement, and to ensure the thickness of the protective layer required by the design structure drawings.

[0027] The processing and installation of the steel structure device based on the construction model includes making a positioning circular steel plate for embedded anchor bolts based on the steel structure construction drawings, deepening the nodes according to the vertical column reinforcements of round tube columns with different diameters, and then setting a retractable and adjustable column vertical reinforcement bracket on the outside of the positioning circular steel plate.

[0028] The processing and installation of the steel structure device based on the construction model also includes establishing a control network, establishing multiple measuring stations through a total station based on the plane reference points of the construction model; placing horizontal control lines, the horizontal control lines are based on the main structure, and the elevation lines are marked on the outer facades through a level; according to the positioning relationship between the embedded anchor bolts and the vertical main reinforcement, the circular tube column is positioned in combination with the plane control network and the horizontal control lines, and the steel bars are tied after positioning.

[0029] Example 2 The difference between this embodiment and embodiment 1 is that this embodiment provides a method for pre-embedded positioning of a column foot of a circular tube column, comprising the following steps: 1. Establish the construction model of the base plate of the circular tube column and the position of the anchor bolts; By deepening the design node diagram of the embedded anchor bolts of the steel structure, the anchor bolts are connected with the column foot of the steel structure; first, the construction model of the column foot of the steel component should be established, and the specifications, lengths, column tops and column foot steel bar positions of the steel column and anchor bolts should be modeled according to the design drawings. Through the simulation construction function of the model, the feasibility of the embedded column foot construction plan can be tested, and the inadequate considerations in the installation plan can be found in advance, and the construction steps can be adjusted and optimized in advance to avoid problems after the construction starts.

[0030] 2. Use the connection between the embedded bolts and the arrangement of the vertical column reinforcement of the round tube column; By deepening the nodes of the concrete vertical column reinforcement at the foot of the steel structure column, the concrete column reinforcement of various diameters is connected with the anchor bolts of the round tube column. According to the design drawings, the vertical column reinforcement of the round tube column with different diameters is modeled and analyzed. The feasibility of the construction device and the construction plan is tested, and the deficiencies and parts that need to be improved in the device are discovered in advance. The optimization and construction steps are deduced again to avoid subsequent problems. Standardization and batch processing are achieved, construction efficiency is improved, and the error rate is reduced.

[0031] 3. Establish the pre-embedded model of column foot and conduct collision analysis and three-dimensional simulation experiments; First, a steel structure column base model should be established. According to the vertical steel bar model of the circular tube column of 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 conducted between the model and the main reinforcement. The main structure should be reviewed according to the requirements of the modeler. The on-site review data should be imported into the three-dimensional model to check whether the vertical main reinforcement of the column is consistent with the steel structure circular tube column model. If not, the model should be adjusted after communication with the designer. A three-dimensional simulation experiment should be conducted on the steel structure model. Through the simulated construction function of the model, the feasibility of the construction equipment and construction methods can be tested, and the shortcomings in the plan can be discovered in advance. The construction steps can be adjusted and optimized in advance to avoid problems after the construction starts.

[0032] 4. On-site laying out; First, a control network should be established. According to the plane reference points provided by the owner, multiple measuring stations should be established through the total station. Then, horizontal control lines should be placed. The horizontal control lines are mainly based on the main structure, and the elevation lines are marked on the outer facades with a level. According to the steel structure column foot anchor bolt positioning diagram, the circular tube column is positioned in combination with the plane control network and horizontal control lines.

[0033] 5. Pre-embedded foundation bolts for round tube columns and processing of vertical reinforcement control devices; Through the invention and innovation of the embedded bolts accuracy of the steel structure column base and the control of the position of the vertical column reinforcement of the circular tube column, the traditional construction method of the embedded positioning plate of the steel column is transformed into a set of positioning steel plates that can fix the embedded bolts of the vertical main reinforcement of the column, and then a set of telescopic and adjustable vertical column reinforcement device for the concrete column is set on the outside of the circular positioning steel plate.

[0034] According to the model and processing drawings, the circular steel plate for positioning the steel structure anchor bolts is first made in the steel structure processing plant, and then the vertical steel bars of the circular tube columns with different diameters are deepened separately according to the design drawings. A retractable and adjustable column vertical steel bar bracket is set on the outside of the positioning plate. The bracket can be retracted according to the length of the circular tube column to achieve the function of repeated use, and ensure the distance between the steel bar and the circular tube column, which is convenient for the subsequent installation of the circular tube column. The middle of the positioning steel plate uses a rectangular steel plate with a thickness of 8mm. It is processed and manufactured according to the size and specifications of the column foot bolts in the detailed drawing, and then a steel plate ring with a width of 100mm and a thickness of 8mm is set on the outside of the rectangular square plate. According to the node deepening and model of the design drawing, a retractable bracket system is set at the position of the vertical steel bars in the ring to fix the vertical column bars of the column. The bracket can be radially retracted according to the position of the column bars to ensure reusability.

[0035] 6. Pre-embedded anchor bolts and steel bar control measures; After the main team has tied the steel bars, they hand over the steel structure to pre-embed the column foot anchor bolts. Coordinate points for testing are set at the center of the steel formwork. The positioning of each circular tube column is determined according to the design detailed drawing and model. The anchor bolts are pre-embedded by measuring the center point and the three-dimensional coordinates of the top of the anchor bolt using a total station, and the elevation of the anchor bolt is measured using a level. The mold is positioned above the first pouring of concrete, so it is easy to dismantle and reuse after the concrete is poured.

[0036] 7. Vertical main reinforcement control device for circular tube column; After the position of the circular tube column anchor bolts is determined, the mold ring position adjustment bracket is used to ensure the position of the steel bar according to the requirements of the design drawing, to ensure the thickness of the steel bar's protective layer and the contact distance with the circular tube column, to ensure smooth subsequent installation.

[0037] 8. Concrete pouring and positioning mold removal; After the anchor bolts of the circular tube column are embedded and the steel bars are fixed and inspected, the positioning template is removed and moved to the next circular tube column for continued use.

[0038] As for materials and equipment, this embodiment mainly includes the following materials: The main materials include round tube columns, anchor bolts, positioning molds, bolts, adjustable telescopic connectors, and stainless steel bolt assemblies.

[0039] There are several key points for quality control during the construction process: (1) When measuring and laying out, take the permanent coordinate points according to the established layout plan, and carefully lay out the reference line and select the appropriate position to mark the permanent coordinate points according to the axis position and size specified in the construction drawing, so that they can be used as a reference at any time during the construction process.

[0040] (2) After the circular column anchor bolts are installed, use a total station and a level to conduct a recheck measurement. After the measurement, fix the bolts to ensure the accurate positioning of the anchor bolts. Adjust the adjustable bracket according to the requirements of the drawing to ensure that the distance between the steel bars is in line with the external recheck design drawing size requirements.

[0041] Example 3. This embodiment provides a pre-embedded positioning device for a circular tube column foot, comprising: A disc flange on the base of a circular tubular column, wherein a rectangular flange is arranged at the center of the disc flange, the disc flange and the rectangular flange are connected via a connecting piece, a plurality of vertical column bars are arranged on the periphery of the disc flange, and the four corners of the rectangular flange are respectively fixed by anchor bolts.

[0042] Among them, a retractable bracket is arranged at the position where the vertical column reinforcement is arranged on the steel plate ring, which is used to fix the vertical column reinforcement, and the retractable bracket is radially retracted according to the position of the vertical column reinforcement.

[0043] Specifically, like Figure 1 As shown, the connection between the foundation anchor bolts of the circular tube column and the main reinforcement of the column is described, wherein the foundation bolts 4 are used to fix the circular tube column; the rectangular flange 3 is a device for pre-embedded bolts, the opening position of the rectangular flange 3 is determined by the positioning of the bolts, and then the rectangular flange and the disc flange 2 are integrated by welding the connector 5. Then, an adjustable bracket 1 is set on the disc flange 2 to fix the main reinforcement of the column. The adjustable bracket 1 adjusts the position of the reinforcement according to the size of the circular tube column and the size of the concrete column (the size of the concrete column in this embodiment is 1400mm, 1500mm, 1600mm, 1800mm).

[0044] like Figure 2 As shown, the adjustable support includes a movable angle steel fixing support 11, which is suitable for fixing steel bars of different diameters and different positions by moving the telescopic angle steel. It is suitable for adjusting the distance of steel bars in a small range by moving back and forth through the movable groove 8. The upper and lower positions of the supporting steel bars are adjusted by moving the movable slide 13 up and down. A semicircular support is set at the top of the movable slide to fix the position of the main reinforcement of the column.

[0045] like Figure 3 As shown, the positional relationship between the circular tubular column steel bars and the circular tubular column is indicated.

[0046] Working principle: The anchor bolt embedded device is used as a positioning device for the vertical steel bars of the column. The anchor bolt 4 is fixed with a rectangular flange 3. The rectangular flange 3 is connected to the connecting plate 5 by welding. Then the disc flange 2 (width 150mm) is welded to the connecting plate 5 (thickness 10mm). A movable groove (20*100mm) is opened on the rectangular flange 3. The movable groove can ensure left and right movement. The left and right movement range is 100mm. It is used to adjust the distance of the steel bar from the center of the circle. A movable bracket 1 is set on the movable groove. The movable bracket moves back and forth through the movable groove. After moving to the position, a movable angle steel fixing support 11 can be used. The movable fixing support 11 is made of 50*5 angle steel, and the upper part of the movable groove is angle steel, and the lower part is made of 50*40*10 steel plate. After moving to the position, bolts are used to tighten to ensure that the angle steel bracket does not move left and right. A 40*200*18mm steel plate is set on the top, and a movable groove is opened on the steel plate. The opening of the movable groove is 20*100. A 20*80*14 steel plate is connected to the outside of the movable groove. The steel plate can be moved upward through the movable groove. After moving to the position, it is fixed by ordinary fastening bolts 9. Then a movable diagonal brace is set on the two steel plate brackets of the bracket to support the 20*80*14 steel plate. A semicircular support 6 is welded on the outside of the 20*80*14 steel plate. The semicircular support meets the main diameter 28 / 32 steel bar.

[0047] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for pre-embedded positioning of a circular tube column foot, characterized in that: include: Obtain steel structure construction drawings; Construct the construction model of the round tube column and embedded anchor bolts according to the steel structure construction drawings; Establish the positioning connection between the embedded anchor bolts and the vertical main reinforcement according to the construction model; Construction model collision analysis and three-dimensional simulation experiments were conducted based on the positioning relationship between embedded anchor bolts and concrete main reinforcement; Processing and installation of steel structure devices based on construction models.

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

3. A method for pre-embedded positioning of a circular tube column base according to claim 2, characterized in that: The method of constructing a construction model of a circular tube column and embedded anchor bolts according to the steel structure construction drawings includes obtaining the specifications, length, top elevation, and number, specifications, position, and distribution of steel columns and anchor bolts and the column foot steel bars according to the design node diagram of the steel structure embedded anchor bolts, and using Tekla steel structure deepening software to establish a construction model of a circular tube column and embedded anchor bolts.

4. A method for pre-embedded positioning of a circular tube column base according to claim 3, characterized in that: The positioning relationship between the embedded anchor bolts and the vertical column reinforcement is established according to the construction model, including judging the connection relationship between the vertical column reinforcement and the circular tube column according to the construction model and drawing requirements of the circular tube column and the embedded anchor bolts, and determining the distance relationship between the circular tube column and the concrete column. Finally, the positioning relationship between the embedded anchor bolts and the vertical column reinforcement is determined through the relationship between the embedded anchor bolts and the circular tube column.

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

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

7. A method for pre-embedded positioning of a circular tube column base according to claim 6, characterized in that: The processing and installation of the steel structure device based on the construction model includes making a positioning circular steel plate for embedded anchor bolts based on the steel structure construction drawings, deepening the nodes according to the vertical column reinforcements of round tube columns with different diameters, and then setting a retractable and adjustable column vertical reinforcement bracket on the outside of the positioning circular steel plate.

8. A method for pre-embedded positioning of a circular tube column base according to claim 7, characterized in that: The processing and installation of the steel structure device based on the construction model also includes establishing a control network, establishing multiple measuring stations through a total station based on the plane reference points of the construction model; placing horizontal control lines, the horizontal control lines are based on the main structure, and the elevation lines are marked on the outer facades through a level; according to the positioning relationship between the embedded anchor bolts and the vertical main reinforcement, the circular tube column is positioned in combination with the plane control network and the horizontal control lines, and the steel bars are tied after positioning.

9. A pre-embedded positioning device for a circular tube column foot, characterized in that: include: A disc flange on the base of a circular tubular column, wherein a rectangular flange is arranged at the center of the disc flange, the disc flange and the rectangular flange are connected via a connecting piece, a plurality of vertical column bars are arranged on the periphery of the disc flange, and the four corners of the rectangular flange are respectively fixed by anchor bolts.

10. A method for pre-embedded positioning of a circular tube column base according to claim 9, characterized in that: A retractable bracket is provided at the position where the vertical column reinforcement is provided on the steel plate ring, and is used to fix the vertical column reinforcement. The retractable bracket is radially retracted according to the position of the vertical column reinforcement.

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