Bridge cable-stayed buckling tower mounting method

By constructing and comparing the three-dimensional model of the bridge trapped buckle hanging tower, detecting the installation accuracy and adjusting the position, the problems of installation offset and safety hazards during construction are solved, and efficient and informatized construction management is achieved.

CN119980860APending Publication Date: 2025-05-13GUIZHOU ROAD & BRIDGE GRP +1
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202510128305.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

During the construction of the bridge trapped buckle tower, due to the impact of the working environment, the construction quality is difficult to control when installing prefabricated parts, and installation deviations are prone to occur, resulting in safety hazards and it is difficult to trace and confirm installation deviations.

Method used

By constructing a three-dimensional model of the cable-stayed buckle hanging tower, marking reference points and extracting information, calibrating marking points on the tower prefabricated parts, taking pictures after installation and performing image processing, building an actual three-dimensional model, comparing the marking information with reference point information to detect installation accuracy, and adjusting the installation position according to the accuracy, generating a QR code to record the installation information.

Benefits of technology

It improves construction quality, avoids installation deviations and safety hazards, simplifies the measurement process, reduces the intensity of human labor, improves construction efficiency, and realizes information management of the installation process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119980860A_ABST
    Figure CN119980860A_ABST
Patent Text Reader

Abstract

The invention discloses a bridge cable-stayed hanging tower installation method, and relates to the technical field of bridge cable-stayed hanging tower construction, and the method comprises the steps: constructing a three-dimensional model of a cable-stayed hanging tower, marking a reference point, and extracting the information of the reference point; marking points are calibrated on a tower prefabricated part, the positions of the marking points correspond to the positions of the reference points, and the tower prefabricated part comprises a stand column, a tower buckling flat connecting rod, an anchor box and a sling saddle; pouring a junction pier on the skewback, and hoisting the upright post after the junction pier is solidified; and shooting an image after installation, inputting the image into a computer, extracting image information and mark information, and constructing an actual three-dimensional model of the cable-stayed hanging tower in the computer. According to the tower prefabricated part installation method, the positions of the tower prefabricated parts can be judged and calibrated in all links in the process of installing all the tower prefabricated parts, the construction quality can be improved, installation deviation is avoided, and potential safety hazards caused by the installation deviation in the installation process are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of bridge inclined-stayed buckle-hanging tower construction, and in particular to an installation method of a bridge inclined-stayed buckle-hanging tower. Background Art

[0002] Box-type arch bridges can make full use of materials and have many characteristics such as large hollowing, strong spanning capacity, and beautiful lines. They are particularly suitable for bridge construction in mountainous areas. For large-span box-type arch bridges, the cantilever casting construction method has obvious advantages in technology and economy compared with other bridge types.

[0003] At present, the Chinese invention patent with application number 202311354202.1 discloses a cable tower crane construction method with integrated lifting buckle. By combining the tower crane and the cable lifting system, an efficient, flexible and safe construction method is achieved, thereby improving construction efficiency: However, due to the influence of the working environment, when installing prefabricated parts, the construction quality is difficult to control, and installation offset problems are prone to occur, resulting in safety hazards during the installation process. Repeated measurements are required to determine the installation deviation. The operation is cumbersome and the installation process is difficult to trace and confirm. Summary of the invention

[0004] The technical problem solved by the present invention is: However, due to the influence of the working environment, the construction quality is difficult to control when installing prefabricated parts, and installation deviation is prone to occur, resulting in safety hazards during the installation process. Repeated measurements are required to determine the installation deviation, the operation is cumbersome, and the installation process is difficult to trace and confirm.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for installing a bridge cable-stayed buckle-hanging tower, comprising constructing a three-dimensional model of the cable-stayed buckle-hanging tower, marking reference points, and extracting the reference point information; calibrating marking points on a tower prefabricated component, and the marking points correspond to the positions of the reference points, the tower prefabricated component comprising a column, a buckle tower horizontal connecting rod, an anchor box, and a sling saddle; casting a junction pier on the arch seat, and hoisting the column after the junction pier solidifies; taking an image after installation, inputting the image into a computer, extracting the image information and the marking information, and constructing an actual three-dimensional model of the cable-stayed buckle-hanging tower in the computer. model, compare the marking information of the actual three-dimensional model with the reference point information to detect the installation accuracy; based on the installation accuracy, adjust the installation position until it meets the allowable error range, generate a QR code for the installation information, and record it; install the buckle tower flat connecting rod on the column, and repeat steps 4 and 5; install the anchor box on the top of the column, and repeat steps 4 and 5; extend the column on the top of the anchor box, and repeat steps 4 and 5; install the sling saddle on the anchor box, and repeat steps 4 and 5; paint the entire installed inclined buckle tower frame; accept the inclined buckle tower frame.

[0006] As a preferred solution of the method for installing the bridge cable-stayed buckle-hanging tower frame of the present invention, wherein: constructing a three-dimensional model of the cable-stayed buckle-hanging tower frame, marking reference points, and extracting the reference point information specifically includes:

[0007] Establish a coordinate system of the three-dimensional model, select several reference points on the three-dimensional model, obtain the reference point information, calculate the theoretical distance between the reference points, and add the installation error to the theoretical distance to obtain the reference distance;

[0008] The reference point information is the coordinate information of the reference point.

[0009] As a preferred solution of the method for installing the bridge cable-stayed buckle-hanging tower frame of the present invention, the actual three-dimensional model of the cable-stayed buckle-hanging tower frame is constructed in a computer, including:

[0010] The installed image is captured by a camera, the image is input into a computer, the image is grayed to generate a gray image, edge information of the gray image is extracted by an edge detection algorithm, and a wireframe model is established based on the edge information as an actual three-dimensional model, wherein the edge detection algorithm is a Canny algorithm;

[0011] Performing size compensation on the actual three-dimensional model, comparing the marking information on the actual three-dimensional model after size compensation with the reference point information, and detecting the installation accuracy;

[0012] If the installation accuracy is within the allowable error range, it means that the installation position is normal;

[0013] If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

[0014] As a preferred solution of the method for installing the bridge cable-stayed buckle-hanging tower according to the present invention, the size compensation of the actual three-dimensional model includes:

[0015] Select the position of one of the marking points on the grayscale image, and obtain the pixel interval value of the pixel area where the marking point is located, select a window with the same area as the pixel area where the marking point is located in the grayscale image, slide the window, and calculate the average value of the pixels in the window;

[0016] If the average value of the pixels in the window is within the pixel interval value, it means that the area is a marked point;

[0017] If the average value of the pixels in the window is not within the pixel interval value, it means that the area is not a marked point;

[0018] Selecting the positions of all the marking points on the grayscale image;

[0019] A first reference distance between two reference points on the same tower prefabricated component is calculated, and a first actual distance between two marking points corresponding to the two reference points in the grayscale image is calculated, and the size compensation of the actual three-dimensional model is performed using the corresponding relationship between the reference distance and the actual distance.

[0020] As a preferred solution of the method for installing the bridge cable-stayed buckle-hanging tower according to the present invention, the marking information includes a second actual distance;

[0021] The reference point information includes a second reference distance;

[0022] Calculate a second reference distance between two reference points of adjacent tower prefabricated parts, and calculate a second actual distance between two marking points corresponding to the two reference points on the actual three-dimensional model, and use the difference between the second actual distance and the second reference distance as the installation error;

[0023] If the installation accuracy is within the allowable error range, it means that the installation position is normal;

[0024] If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

[0025] As a preferred solution of the method for installing the bridge inclined-stayed buckle-hanging tower according to the present invention, the hoisting column specifically includes:

[0026] The columns should be installed symmetrically from bottom to top, first in the middle and then at both ends;

[0027] The verticality of the column is controlled by a total station, and the embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections;

[0028] The segmented welding includes welding the stiffening plates first and then the columns. The column welding parts are segmented and numbered, and each zone is welded symmetrically at the same time with the same welding speed.

[0029] As a preferred solution of the method for installing the bridge cable-stayed buckle-hanging tower frame of the present invention, the buckle-hanging tower horizontal connecting rod comprises:

[0030] The tower-mounted parallel rods are connected by flange bolts;

[0031] Before installation, measure the gap between the flange or anchor box support beam;

[0032] If the gap exceeds 5mm, use thin steel sheets to fill the gap.

[0033] The tightening sequence of the bolts on the flange is from the part with greater rigidity to the free end without restraint;

[0034] Within the same node, the entire tower bolt tightening process is carried out symmetrically from the middle to the surrounding areas.

[0035] As a preferred solution of the method for installing the bridge inclined-stayed buckle-hanging tower frame of the present invention, wherein: when installing the anchor box, the centerline position of the anchor box is drawn in advance, and the anchor box and the column are welded by carbon dioxide shielded welding, and the welding seam is welded symmetrically from the middle of the span to both ends longitudinally and from the center line to both sides transversely;

[0036] Each anchor box and sling saddle are numbered, and the sling saddle is welded to the corresponding position of the anchor box.

[0037] As a preferred solution of the method for installing the bridge inclined-stayed buckle-hanging tower frame of the present invention, the column extension includes:

[0038] Install the new posts on top of the anchor box, symmetrically from bottom to top, first in the middle and then at both ends;

[0039] The verticality of the column is controlled by a total station, and the embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections;

[0040] The segmented welding includes welding the stiffening plates first and then the columns. The column welding parts are numbered and the zones are welded symmetrically at the same time with the same welding speed.

[0041] Continue installing new anchor boxes on top of the new posts until the intended installation task is complete.

[0042] As a preferred solution of the method for installing a bridge cable-stayed buckle tower described in the present invention, the installation information includes the number, position, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts, and the number, position, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts are entered into a QR code business card for archiving and recording.

[0043] The beneficial effects of the present invention include: being able to judge and calibrate the position of the tower prefabricated parts in each link of the process of installing each tower prefabricated part, which is beneficial to improving the construction quality, avoiding installation offset, and reducing the potential safety hazards in the installation process caused by installation offset. The invention is also convenient for measurement, and can determine the installation deviation by performing image processing and judgment by a computer without repeated measurements, which is beneficial to reducing the intensity of manual labor and improving construction efficiency. The installation process can be informatized, and the numbering, position, size, installation time, manufacturing traceability, and information of construction personnel and supervisors of the tower prefabricated parts can be managed in an informatized manner using QR code technology, so that information can be made public and traceable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the basic process of a method for installing a bridge cable-stayed buckle-hanging tower provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, but not all of the embodiments.

[0046] Example 1

[0047] Reference Figure 1 , as one embodiment of the present invention, provides a method for installing a bridge cable-stayed buckle-hanging tower, comprising:

[0048] Step 1: construct a three-dimensional model of the inclined-stayed buckle-hanging tower, mark reference points, and extract the reference point information;

[0049] Establish a coordinate system of the three-dimensional model, select several reference points on the three-dimensional model, obtain the reference point information, calculate the theoretical distance between the reference points, and add the installation error to the theoretical distance to obtain the reference distance;

[0050] The reference point information is the coordinate information of the reference point.

[0051] Step 2: Marking points on the tower prefabricated component, and the marked points correspond to the reference point positions. The tower prefabricated component includes a column, a tower buckle horizontal connecting rod, an anchor box and a sling saddle.

[0052] Select two or more reference points on each tower prefabricated part in the three-dimensional model, calibrate the marking points at corresponding positions on the actual tower prefabricated part and the tower prefabricated part in the three-dimensional model, and set reflective stickers or the like at the marking points for marking.

[0053] Step 3: Cast the junction pier on the arch seat, and hoist the column after the junction pier solidifies;

[0054] The lifting columns specifically include:

[0055] The columns should be installed symmetrically from bottom to top, first in the middle and then at both ends;

[0056] The verticality of the column is controlled by the total station. The embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections. The verticality of the column can be detected by the total station. The verticality of the column can be adjusted and controlled during the installation process.

[0057] The segmented welding includes welding the stiffening plates first and then welding the columns. The welding parts of the columns are segmented and numbered. Each zone is welded symmetrically at the same time with the same welding speed, which helps to ensure the verticality of the columns.

[0058] Step 4: Take the image after installation, input the image into the computer, extract the image information and marking information, build the actual three-dimensional model of the cable-stayed buckle hanging tower in the computer, compare the marking information of the actual three-dimensional model with the reference point information, and detect the installation accuracy.

[0059] It is preferred to use a drone equipped with a camera for shooting to improve the efficiency of acquiring images.

[0060] The actual 3D model of the cable-stayed buckle tower frame constructed in the computer includes:

[0061] The installed image is captured by a camera, the image is input into a computer, the image is grayed to generate a gray image, edge information of the gray image is extracted by an edge detection algorithm, and a wireframe model is established based on the edge information as an actual three-dimensional model, wherein the edge detection algorithm is a Canny algorithm;

[0062] Performing size compensation on the actual three-dimensional model, comparing the marking information on the actual three-dimensional model after size compensation with the reference point information, and detecting the installation accuracy;

[0063] If the installation accuracy is within the allowable error range, it means that the installation position is normal;

[0064] If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

[0065] Performing size compensation on the actual three-dimensional model includes:

[0066] Select the position of one of the marking points on the grayscale image, and obtain the pixel interval value of the pixel area where the marking point is located, select a window with the same area as the pixel area where the marking point is located in the grayscale image, slide the window, and calculate the average value of the pixels in the window;

[0067] If the average value of the pixels in the window is within the pixel interval value, it means that the area is a marked point;

[0068] If the average value of the pixels in the window is not within the pixel interval value, it means that the area is not a marked point;

[0069] Selecting the positions of all the marking points on the grayscale image;

[0070] The first reference distance between two reference points on the same tower prefabricated component is calculated, and the first actual distance between two marking points corresponding to the two reference points in the grayscale image is calculated, and the size compensation of the actual three-dimensional model is performed using the corresponding relationship between the reference distance and the actual distance. The first actual distance between the two marking points is calculated using the calculation formula of the Euclidean distance.

[0071] By performing size compensation on the actual three-dimensional model, the accuracy of the actual three-dimensional model can be improved, which facilitates comparison with the three-dimensional model, judgment of installation accuracy, and reduction of judgment errors.

[0072] The marking information includes a second actual distance;

[0073] The reference point information includes a second reference distance;

[0074] Calculate a second reference distance between two reference points of adjacent tower prefabricated parts, and calculate a second actual distance between two marking points corresponding to the two reference points on the actual three-dimensional model, and use the difference between the second actual distance and the second reference distance as the installation error;

[0075] If the installation accuracy is within the allowable error range, it means that the installation position is normal;

[0076] If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

[0077] It can judge and calibrate the position of each tower prefabricated component in each link of the installation process, which is beneficial to improve the construction quality, avoid installation deviation, and reduce the safety hazards in the installation process caused by installation deviation. It is also convenient to measure, and only needs to take pictures and process the image and complete the judgment through the computer, which is beneficial to reduce the labor intensity and improve the construction efficiency.

[0078] Step 5: Based on the installation accuracy, adjust the installation position until it meets the allowable error range, generate a QR code for the installation information, and record it;

[0079] The installation information includes the number, location, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts. The number, location, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts are entered into the QR code business card for archiving and recording.

[0080] The installation process can be computerized, and QR code technology can be used to manage the numbering, location, size, installation time, manufacturing traceability, construction personnel and supervision personnel of the tower prefabricated parts, so that information can be made public and traceable.

[0081] Step 6: Install the tower-fastening parallel rod on the column and repeat steps 4 and 5;

[0082] The tower-mounted flat-jointed rods include:

[0083] The tower-mounted parallel rods are connected by flange bolts; preferably, 8.8-grade M20 high-strength bolts are used;

[0084] Before installation, measure the gap between the flange or anchor box support beam;

[0085] If the gap exceeds 5mm, use thin steel sheets to fill the gap to ensure that the verticality and deviation meet the design requirements.

[0086] The tower-mounted parallel-joint rods are connected by flanges, which overcomes the difficulties in parallel-joint welding and quality assurance in related technologies, and improves the efficiency and quality of installation and construction.

[0087] The tightening sequence of the bolts on the flange is from the part with greater rigidity to the free end without restraint;

[0088] The bolt tightening process of the entire tower frame is carried out symmetrically from the middle to the surroundings in the same node to ensure that the verticality of the tower frame meets the design requirements. The tightening sequence of high-strength bolts is from the part with large rigidity to the unconstrained free end. The bolt tightening process of the entire tower frame is carried out symmetrically from the middle to the surroundings in the same node to ensure that the tower frame is evenly stressed.

[0089] Step 7: Install the anchor box on top of the post and repeat steps 4 and 5;

[0090] When installing the anchor box, draw the centerline of the anchor box in advance, and use carbon dioxide shielded welding to weld the anchor box and the column. The welds are welded symmetrically from the middle of the span to both ends longitudinally and from the center line to both sides transversely.

[0091] Number each anchor box and sling saddle, and weld the sling saddle to the corresponding position of the anchor box to prevent installation errors.

[0092] Step 8: Extend the column on the top of the anchor box and repeat steps 4 and 5;

[0093] Column extension includes:

[0094] Install the new posts on top of the anchor box, symmetrically from bottom to top, first in the middle and then at both ends;

[0095] The verticality of the column is controlled by a total station, and the embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections;

[0096] The segmented welding includes welding the stiffening plates first and then the columns. The column welding parts are numbered and the zones are welded symmetrically at the same time with the same welding speed.

[0097] Continue installing new anchor boxes on top of the new posts until the intended installation task is complete.

[0098] The ability to perform inspection and calibration at every step of installing the inclined-stayed buckle tower rack is conducive to timely adjustment, preventing error accumulation and improving installation accuracy.

[0099] Step 9: Install the sling saddle on the anchor box and repeat steps 4 and 5;

[0100] Step 10: Paint the entire installed inclined-stayed buckle hanging tower frame; it is necessary to apply reflective stickers on the marking points before painting.

[0101] Step 11: Acceptance of the inclined-stayed tower frame.

[0102] It can judge and calibrate the position of each tower prefabricated part in each link of the installation process, which is beneficial to improve the construction quality, avoid installation offset, and reduce the safety hazards in the installation process caused by installation offset. It is also convenient to measure, and only needs to take pictures and process the image and complete the judgment through the computer, which is beneficial to reduce the intensity of human labor and improve construction efficiency. It can also informatize the installation process and use QR code technology to manage the numbering, position, size, installation time, manufacturing traceability, construction personnel and supervision personnel of the tower prefabricated parts, so as to make the information public and traceable.

[0103] It should be appreciated that embodiments of the present invention may be implemented or enforced by a combination of computer hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The method may be implemented in a computer program using standard programming techniques - including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner - according to the methods and drawings described in the specific embodiments. Each program may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if desired, the program may be implemented in an assembly or machine language. In any case, the language may be a compiled or interpreted language. In addition, the program may be run on a programmed ASIC for this purpose.

[0104] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for installing a bridge cable-stayed buckle-hanging tower, characterized in that: include: Step 1: construct a three-dimensional model of the inclined-stayed buckle-hanging tower, mark reference points, and extract the reference point information; Step 2: Marking a mark point on a tower prefabricated component, and the mark point corresponds to the reference point position, wherein the tower prefabricated component includes a column, a tower buckle horizontal connecting rod, an anchor box and a sling saddle; Step 3: Cast the junction pier on the arch seat, and hoist the column after the junction pier solidifies; Step 4: photographing the image after installation, inputting the image into a computer, extracting image information and marking information, constructing an actual three-dimensional model of the inclined-stayed buckle-hanging tower in the computer, comparing the marking information of the actual three-dimensional model with the reference point information, and detecting the installation accuracy; Step 5: Based on the installation accuracy, adjust the installation position until it meets the allowable error range, generate a QR code for the installation information, and record it; Step 6: Install the tower-fastening parallel rod on the column and repeat steps 4 and 5; Step 7: Install the anchor box on top of the post and repeat steps 4 and 5; Step 8: Extend the column on the top of the anchor box and repeat steps 4 and 5; Step 9: Install the sling saddle on the anchor box and repeat steps 4 and 5; Step 10: Paint the entire installed inclined stay buckle hanging tower frame; Step 11: Acceptance of the inclined-stayed tower frame.

2. The method for installing a bridge cable-stayed buckle-hanging tower according to claim 1, characterized in that: Construct a three-dimensional model of the inclined-stayed buckle-hanging tower, mark the reference points, and extract the reference point information, specifically including: Establish a coordinate system of the three-dimensional model, select several reference points on the three-dimensional model, obtain the reference point information, calculate the theoretical distance between the reference points, and add the installation error to the theoretical distance to obtain the reference distance; The reference point information is the coordinate information of the reference point.

3. The method for installing a bridge inclined-stayed buckle-hanging tower according to claim 2, characterized in that: The actual 3D model of the cable-stayed buckle tower frame constructed in the computer includes: The installed image is captured by a camera, the image is input into a computer, the image is grayed to generate a gray image, edge information of the gray image is extracted by an edge detection algorithm, and a wireframe model is established based on the edge information as an actual three-dimensional model, wherein the edge detection algorithm is a Canny algorithm; Performing size compensation on the actual three-dimensional model, comparing the marking information on the actual three-dimensional model after size compensation with the reference point information, and detecting the installation accuracy; If the installation accuracy is within the allowable error range, it means that the installation position is normal; If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

4. The method for installing a bridge inclined-stayed buckle-hanging tower according to claim 3, characterized in that: Performing size compensation on the actual three-dimensional model includes: Select the position of one of the marking points on the grayscale image, and obtain the pixel interval value of the pixel area where the marking point is located, select a window with the same area as the pixel area where the marking point is located in the grayscale image, slide the window, and calculate the average value of the pixels in the window; If the average value of the pixels in the window is within the pixel interval value, it means that the area is a marked point; If the average value of the pixels in the window is not within the pixel interval value, it means that the area is not a marked point; Selecting the positions of all the marking points on the grayscale image; A first reference distance between two reference points on the same tower prefabricated component is calculated, and a first actual distance between two marking points corresponding to the two reference points in the grayscale image is calculated, and the size compensation of the actual three-dimensional model is performed using the corresponding relationship between the reference distance and the actual distance.

5. The method for installing a bridge cable-stayed buckle-hanging tower according to claim 4, characterized in that: The marking information includes a second actual distance; The reference point information includes a second reference distance; Calculate a second reference distance between two reference points of adjacent tower prefabricated parts, and calculate a second actual distance between two marking points corresponding to the two reference points on the actual three-dimensional model, and use the difference between the second actual distance and the second reference distance as the installation error; If the installation accuracy is within the allowable error range, it means that the installation position is normal; If the installation accuracy is not within the allowable error range, it means that the installation position is abnormal.

6. The method for installing a bridge inclined-stayed buckle-hanging tower according to claim 5, characterized in that: The lifting columns specifically include: The columns should be installed symmetrically from bottom to top, first in the middle and then at both ends; The verticality of the column is controlled by a total station, and the embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections; The segmented welding includes welding the stiffening plates first and then the columns. The column welding parts are segmented and numbered, and each zone is welded symmetrically at the same time with the same welding speed.

7. The method for installing a bridge cable-stayed buckle-hanging tower according to claim 6, characterized in that: The tower-mounted flat-jointed rods include: The tower-mounted parallel rods are connected by flange bolts; Before installation, measure the gap between the flange or anchor box support beam; If the gap exceeds 5mm, use thin steel sheets to fill the gap. The tightening sequence of the bolts on the flange is from the part with greater rigidity to the free end without constraints; Within the same node, the entire tower bolt tightening process is carried out symmetrically from the middle to the surrounding areas.

8. The method for installing a bridge cable-stayed buckle-hanging tower according to claim 7, characterized in that: When installing the anchor box, draw the centerline of the anchor box in advance, and use carbon dioxide shielded welding to weld the anchor box and the column. The welds are welded symmetrically from the middle of the span to both ends longitudinally and from the center line to both sides transversely. Each anchor box and sling saddle are numbered, and the sling saddle is welded to the corresponding position of the anchor box.

9. The method for installing a bridge inclined-stayed buckle-hanging tower according to claim 8, characterized in that: Column extension includes: Install the new posts on top of the anchor box, symmetrically from bottom to top, first in the middle and then at both ends; The verticality of the column is controlled by a total station, and the embedded steel plates at the bottom of the column and the top of the junction pier are welded symmetrically in sections; The segmented welding includes welding the stiffening plates first and then the columns. The column welding parts are numbered and the zones are welded symmetrically at the same time with the same welding speed. Continue installing new anchor boxes on top of the new posts until the intended installation task is complete.

10. The method for installing a bridge cable-stayed buckle-hanging tower according to claim 9, characterized in that: The installation information includes the number, location, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts. The number, location, size, installation time, manufacturing traceability, construction personnel and supervision personnel information of the tower prefabricated parts are entered into the QR code business card for archiving.

Citation Information

Patent Citations

  • Hanging and buckling combined cable crane tower construction method

    CN117488675A