Holographic imaging installation method for steel structure

Abstract

The invention discloses a steel structure holographic imaging installation method, and relates to the technical field of steel structure installation. The method comprises the following steps: S1, constructing a three-dimensional standard model of a steel structure according to a design drawing of the steel structure; s2, a steel column is selected from the steel structure to serve as a standard column, the standard column is installed on site, and the installation precision of the standard column is controlled to meet the design requirement; s3, temporarily fixing steel columns around the standard column on site, and installing an imaging scanner on the steel columns; s4, scanning steel columns around the standard column and generating a three-dimensional actual model; s5, comparing the three-dimensional actual model with the three-dimensional standard model, and adjusting the mounting positions of the steel columns around the standard column according to a comparison result; s6, repeating the steps S4 to S5 until the mounting precision of the steel columns around the standard column meets the design requirement; and S7, the steel column installed in the step S6 serves as a new standard column, and the steps S3 to S6 are repeated. The installation precision of the steel structure is improved, and the installation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure installation, and in particular to a method for installing holographic imaging of a steel structure. Background Art

[0002] Steel structures are widely used in construction projects due to their light weight, high strength and fast construction speed. In the construction of high-rise buildings and large structures, the precise installation of steel structures is particularly critical. At present, the industry generally uses total stations for ground station construction and layout measurements to ensure the precise positioning of steel structures. However, this method has several limitations.

[0003] First, the total station site setting scheme is relatively inefficient and easily affected by environmental climate. For example, the instrument is easily affected by environmental and platform vibrations when operating at high altitudes, resulting in large errors in the measurement results. In addition, repeated site measurements lead to error accumulation, especially during the installation of high-rise steel structures. In order to improve the installation accuracy, repeated measurements are required, which not only increases the workload, but also poses challenges to construction safety.

[0004] Secondly, after the total station is built on the ground, the geographic coordinates need to be transferred to the steel structure installation platform, and then the coordinates, angles and heights of each installation position are measured by setting out. During this process, technicians need to set up the total station in a dangerous high-altitude location, which is not only risky, but also has large measurement errors due to the shortcomings of the total station itself. Sometimes these errors are ignored due to the lack of reliable reference objects. Summary of the invention

[0005] The purpose of the present application is to provide a method for installing holographic imaging of steel structures, so as to solve the problem of poor installation accuracy of the installation method of steel structures using total station setting out.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A steel structure holographic imaging installation method, comprising:

[0008] S1. Construct a three-dimensional standard model of the steel structure according to the design drawings of the steel structure;

[0009] S2. Select a steel column in the steel structure as a standard column, install the standard column at the construction site and control its installation accuracy to meet the design requirements;

[0010] S3. Temporarily fix the steel columns around the standard columns at the construction site and install an imaging scanner on the top of the standard columns;

[0011] S4, using an imaging scanner to scan the steel columns around the standard column and generate a three-dimensional actual model;

[0012] S5. Compare the three-dimensional actual model with the three-dimensional standard model, and adjust the installation position of the steel columns around the standard columns according to the comparison result;

[0013] S6. Repeat steps S4 to S5 until the installation accuracy of the steel columns around the standard column meets the design requirements;

[0014] S7. Using the steel column installed in step S6 as a new standard column, repeat steps S3 to S6.

[0015] Furthermore, in step S2, the standard column is a steel column located at the center of the steel structure.

[0016] Furthermore, in step S2, a total station and a level are used to control the installation accuracy of the standard column to meet the design requirements.

[0017] Furthermore, a method for using an imaging scanner to scan steel columns around a standard column and generate a three-dimensional actual model includes: using thermal imaging to scan the steel column to obtain an imaging range of the steel column; using a laser to scan the steel column within the imaging range to obtain an imaging shape of the steel column; then using a radar to scan the laser scanning imaging range to obtain the shape and position of other components on the steel column; and superimposing the laser scan with the radar scan to obtain a three-dimensional actual model of the steel column.

[0018] Furthermore, a narrow beam laser is used to scan the steel column within the imaging range.

[0019] Furthermore, the imaging scanner is connected to the four corners of the standard column through four magnetic feet.

[0020] Furthermore, when the steel column is scanned within the imaging range by using the laser, a laser receiver for cooperating with the laser is arranged on the outer surface of the steel column.

[0021] Furthermore, the laser receiver is magnetically connected to the outer surface of the steel column.

[0022] Furthermore, the laser receiver includes an inductive receiving target.

[0023] Furthermore, the inductive receiving target has a photoelectric display component and a sound reminder component.

[0024] Beneficial effects of this application:

[0025] The steel structure holographic imaging installation method provided in the embodiment of the present application, by constructing a three-dimensional standard model, installing an imaging scanner on the standard column, using the imaging scanner to scan the steel column and generate a three-dimensional actual model of the steel column, after comparing the three-dimensional actual model with the three-dimensional standard model, the installation deviation of the steel column can be accurately obtained, and the steel column can be adjusted according to the installation deviation so that the installation accuracy of the steel column meets the design requirements. Compared with the existing total station site establishment and layout method, the present application does not need to repeat the site establishment and repeated measurement, which ensures the installation accuracy, reduces the workload, and improves the installation efficiency; the present application also realizes the full visualization operation of the steel column by holographic imaging of the steel column, which is not affected by weather and environment, and greatly reduces the safety risks during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a top view of the steel structure. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0030] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0031] The present application provides a method for installing a holographic imaging system for a steel structure, comprising the following steps:

[0032] S1. Construct a three-dimensional standard model of the steel structure according to the design drawings of the steel structure.

[0033] S2. Select a steel column in the steel structure as the standard column, install the standard column at the construction site and control its installation accuracy to meet the design requirements.

[0034] For example, the standard column is a steel column located in the center of the steel structure, so that the steel structure can be installed radially from the center to the surroundings, improving installation efficiency. After the standard column is installed at the construction site, the total station and level are used to control the installation accuracy of the standard column to meet the design requirements. For example, the total station and level are used to install the standard column in place and control the coordinate error of the four corners of the standard column to be less than 1mm, and the column top elevation error to be less than 1mm.

[0035] S3. Temporarily fix the steel columns around the standard columns at the construction site and install an imaging scanner on the top of the standard columns.

[0036] Exemplarily, the imaging scanner is connected to the four corners of the standard column through four magnetic feet, and the imaging scanner may include at least one of a thermal imaging scanning device, a laser scanning device, and a radar scanning device. By setting four magnetic feet, it is not only used to position the imaging scanner to ensure that the imaging scanner is installed on the design coordinates of the center of the standard column, but also enables the imaging scanner to be magnetically connected to the standard column, which is convenient for installing the imaging scanner, and also has excellent wind resistance and anti-shaking performance. By installing the imaging scanner on the top of the standard column, the imaging scanner can scan the steel column installed adjacent to the standard column.

[0037] S4. Use an imaging scanner to scan the steel columns around the standard column and generate a three-dimensional actual model.

[0038] Exemplarily, the imaging scanner includes a thermal imaging scanning device, a laser scanning device and a radar scanning device. The method for generating a three-dimensional actual model includes the following steps:

[0039] S4.1. Scan the steel column with thermal imaging to obtain the imaging range of the steel column. Since the thermal conductivity of the steel column is large, the temperature difference between the steel column and the surrounding environment is large. By performing thermal imaging scanning on the steel column, the imaging range of the steel column can be easily obtained.

[0040] S4.2. Use laser to scan the steel column within the imaging range to obtain the imaging shape of the steel column. Exemplarily, use laser to scan the steel column within the imaging range from the middle to the outside. Since there are no other components around the steel column, when the laser scan reaches the edge of the steel column, the reflection time of the laser changes suddenly, thereby determining the edge of the steel column and obtaining the imaging shape of the steel column. In order to improve the scanning accuracy, use narrow beam laser to scan the steel column within the imaging range. In order to further improve the scanning accuracy, when the steel column is scanned within the imaging range by laser, a laser receiver for cooperating with the laser is provided on the outer surface of the steel column. In order to facilitate the installation of the laser receiver, the laser receiver is magnetically connected to the outer surface of the steel column. The laser receiver may include an inductive receiving target, which has a photoelectric display component and a sound reminder component. When the inductive receiving target receives the laser, the photoelectric display component is used for display, and the sound reminder component is used to emit a reminder sound.

[0041] S4.3. Then use the radar to scan the range of the laser scanning imaging to obtain the shape and position of other components on the steel column.

[0042] Through thermal imaging scanning and laser scanning, a high-definition installation shape of the steel column can be obtained. However, since the steel column is not a light column, other components are connected to the steel column. The installation accuracy of these components also determines the installation accuracy of other subsequent steel columns. Since laser scanning is a surface scanning, the shapes of other components on the steel column cannot be formed. Therefore, an active phased array radar capable of multi-beam and multi-point scanning is used to scan the steel column again, so that the shapes and positions of other components on the steel column can be clearly obtained.

[0043] S4.4. By superimposing the laser scan and the radar scan, a three-dimensional actual model of the steel column can be obtained. Through actual measurement, the accuracy of the three-dimensional actual model can be controlled within 1 mm.

[0044] S5. Compare the three-dimensional actual model with the three-dimensional standard model, and adjust the installation position of the steel columns around the standard columns according to the comparison results.

[0045] For example, after the steel column is scanned by an imaging scanner to generate a three-dimensional actual model of the steel column, the three-dimensional actual model is transmitted back to the image processing center wirelessly. In the image processing center, the three-dimensional actual model is compared with the three-dimensional standard model to accurately obtain the deviation between the three-dimensional actual model and the three-dimensional standard model, and the steel columns around the standard column are adjusted according to the deviation.

[0046] S6. Repeat steps S4 to S5 until the installation accuracy of the steel columns around the standard column meets the design requirements.

[0047] S7, using the steel column installed in step S6 as a new standard column, repeating steps S3 to S6. In this way, the steel structure can be installed radially from the middle to the surroundings, thereby improving the installation efficiency.

[0048] Embodiment 1:

[0049] When Figure 1 When installing the steel structure in the pipeline, the specific installation process is as follows:

[0050] A. Construct a 3D standard model of the steel structure according to the design drawings of the steel structure;

[0051] B. Select steel column 0 as the standard column, install steel column 0 at the construction site and control its installation accuracy to meet the design requirements; install an imaging scanner on the top of steel column 0;

[0052] C. Temporarily fix the steel column 1, turn on the imaging scanner, scan the steel column 1 and generate a three-dimensional actual model of the steel column 1, compare the three-dimensional actual model of the steel column 1 with the three-dimensional standard model, and adjust the steel column 1 according to the comparison result;

[0053] D. After the adjustment of steel column 1 is completed, repeat step C until the axis, spacing and elevation of steel column 1 and steel column 0 are consistent with the design drawing;

[0054] E. According to the methods of step C and step D, the installation of steel column 2, steel column 3 and steel column 4 is completed in sequence;

[0055] F. Using steel column 1 as the new standard column, use the above method to complete the installation of steel columns 5, 6, and 10; using steel column 2 as the new standard column, use the above method to complete the installation of steel columns 7 and 11; using steel column 3 as the new standard column, use the above method to complete the installation of steel columns 8 and 12; using steel column 4 as the new standard column, use the above method to complete the installation of steel column 9;

[0056] G. Use the steel columns installed in step F as new standard columns to complete the installation of other steel columns.

[0057] The steel structure holographic imaging installation method provided in the embodiment of the present application, by constructing a three-dimensional standard model, installing an imaging scanner on the standard column, using the imaging scanner to scan the steel column and generate a three-dimensional actual model of the steel column, after comparing the three-dimensional actual model with the three-dimensional standard model, the installation deviation of the steel column can be accurately obtained, and the steel column can be adjusted according to the installation deviation so that the installation accuracy of the steel column meets the design requirements. Compared with the existing total station site establishment and layout method, the present application does not need to repeat the site establishment and repeated measurements, which ensures the installation accuracy, reduces the workload, and improves the installation efficiency; the present application realizes the full visualization operation of the steel column by holographic imaging of the steel column, and the installation process is not affected by the weather and environment, which greatly reduces the safety risks during the installation process.

[0058] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A method for installing holographic imaging of a steel structure, characterized in that: include: S1. Construct a three-dimensional standard model of the steel structure according to the design drawings of the steel structure; S2. Select a steel column in the steel structure as a standard column, install the standard column at the construction site and control its installation accuracy to meet the design requirements; S3. Temporarily fix the steel columns around the standard columns at the construction site and install an imaging scanner on the top of the standard columns; S4, using an imaging scanner to scan the steel columns around the standard column and generate a three-dimensional actual model; S5. Compare the three-dimensional actual model with the three-dimensional standard model, and adjust the installation position of the steel columns around the standard columns according to the comparison result; S6. Repeat steps S4 to S5 until the installation accuracy of the steel columns around the standard column meets the design requirements; S7. Using the steel column installed in step S6 as a new standard column, repeat steps S3 to S6.

2. The steel structure holographic imaging installation method according to claim 1, characterized in that: In step S2, the standard column is a steel column located at the center of the steel structure.

3. The steel structure holographic imaging installation method according to claim 1, characterized in that: In step S2, a total station and a level are used to control the installation accuracy of the standard column to meet the design requirements.

4. The steel structure holographic imaging installation method according to claim 1, characterized in that: The method of using an imaging scanner to scan steel columns around a standard column and generate a three-dimensional actual model comprises: using thermal imaging to scan the steel column to obtain an imaging range of the steel column; using a laser to scan the steel column within the imaging range to obtain an imaging shape of the steel column; then using a radar to scan the laser scanning imaging range to obtain the shape and position of other components on the steel column; and superimposing the laser scanning with the radar scanning to obtain a three-dimensional actual model of the steel column.

5. The steel structure holographic imaging installation method according to claim 4 is characterized in that: A narrow laser beam is used to scan the steel column within the imaging range.

6. The steel structure holographic imaging installation method according to claim 1, characterized in that: The imaging scanner is attached to the four corners of the standard column via four magnetic feet.

7. The steel structure holographic imaging installation method according to claim 4, characterized in that: When the steel column is scanned within the imaging range by using the laser, a laser receiver for cooperating with the laser is arranged on the outer surface of the steel column.

8. The steel structure holographic imaging installation method according to claim 7, characterized in that: The laser receiver is magnetically connected to the outer surface of the steel column.

9. The steel structure holographic imaging installation method according to claim 7, characterized in that: The laser receiver includes an inductive receiving target.

10. The steel structure holographic imaging installation method according to claim 9, characterized in that: The inductive receiving target is provided with a photoelectric display component and a sound reminder component.

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