Positioning and adjusting method for bridge steel shell-concrete combined cable bent tower steel shell

By measuring and calculating the slope and angle of the cable tower's steel shell using a total station, and adjusting the position of the steel shell using the gaps in the matching parts, the problem of insufficient positioning of the cable tower's steel shell was solved, achieving high-precision positioning and rapid construction.

CN121473243APending Publication Date: 2026-02-06HUNAN UNIV OF ARTS & SCI +1
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Patent Information

Application Number
CN202511727671.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-02-06

AI Technical Summary

Technical Problem

The existing technology lacks sufficient methods for positioning and adjusting the steel shell of the pylon, resulting in deviations in the overall design alignment and shape of the pylon, which affects the stress and reliability of the bridge.

Method used

By measuring the actual and theoretical coordinates of the steel shell of the cable tower with a total station, calculating the slope and included angle of the steel shell, and adjusting the position of the steel shell of the cable tower using the gap of the matching parts, high-precision positioning is achieved.

Benefits of technology

This achieved high-precision positioning of the tower's steel shell, ensuring the accuracy of subsequent segment splicing, reducing the impact of temperature and construction time, and improving construction progress and accuracy.

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Abstract

The invention discloses a method for positioning and adjusting a steel shell of a bridge steel shell-concrete combined cable bent tower, which comprises the following steps of: selecting a plurality of monitoring points on the upper surface of the steel shell of the (Tn + 1) th section of the cable bent tower, and acquiring theoretical coordinates of the monitoring points; actual coordinates of the upper surface and the lower surface of the Tnth section of the steel shell of the cable bent tower are measured; according to the theoretical coordinates and the actual coordinates, the theoretical slope of the (Tn + 1) th section of the steel shell is calculated; according to the actual coordinates of the upper surface and the lower surface of the Tnth section of the steel shell, the actual slope of the Tnth section of the steel shell is calculated; according to the theoretical slope and the actual slope, the included angle between the Tn + 1 section of steel shell and the Tn section of steel shell is calculated, the initial gap of a matched part between the Tn + 1 section of steel shell and the Tn section of steel shell at the corresponding monitoring point position is determined, the initial gap of the matched part is adjusted to be within the preset range, the distance between the matched parts is obtained, and the Tn + 1 section of steel shell is hoisted and connected with the matched part. According to the invention, high-precision positioning of the position of the cable bent tower steel shell is realized.
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Description

Technical Field

[0001] This invention relates to the field of construction technology, and in particular to a method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower. Background Technology

[0002] A cable tower, consisting of a base, columns, beams, and crown, is a crucial component of suspension and cable-stayed bridges, supporting the main cables or stay cables. There are various types of cable tower structures, including vertical single-column, vertical double-column, and arch types. The common construction procedure for cable towers involves first fabricating steel tower segments in a workshop, then transporting these segments to the bridge site for hoisting and assembly, followed by concrete pouring. During construction, any deviation in the position of a cable tower segment will alter the overall design alignment and shape of the tower, ultimately severely impacting its load-bearing capacity and the bridge's reliability. A critical step is the positioning and adjustment of the tower's steel shell, a essential prerequisite for ensuring the accuracy of subsequent segment assembly. Therefore, precise positioning and adjustment of the tower's steel shell are crucial for maintaining the overall alignment and shape of the tower. However, methods for positioning and adjusting the tower's steel shell are currently rarely reported. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this invention proposes a positioning and adjustment method for the steel shell of a bridge steel-concrete composite cable tower, achieving high-precision positioning of the cable tower steel shell.

[0004] To achieve the above objectives, the present invention provides a method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower, comprising: Choose Sotati T n+1 Several monitoring points on the upper surface of the segmental steel shell were obtained, and the theoretical coordinates of the monitoring points were obtained based on the engineering measurement benchmarks and design drawings; Using a total station to measure the Sotad. T n The actual coordinates of the upper and lower surfaces of the segmental steel shell, wherein the total station is arranged around the installation location of the cable tower steel shell and the measurements are performed based on the engineering surveying reference points; According to the first T n+1 The theoretical coordinates of the monitoring points on the upper surface of the segmental steel shell and the first T n The actual coordinates of the upper surface of the segmental steel shell are used to calculate the first... T n+1 Theoretical slope of segmental steel shell; According to the first T n The actual coordinates of the upper and lower surfaces of the segmental steel shell are used to calculate the first... Tn The actual slope of the segmental steel shell; According to the first T n+1 The theoretical slope of the segmental steel shell is related to the first... T n Calculation of the actual slope of the segmental steel shell T n+1 Segmented steel shell and T n The included angle of the segmented steel shell, and determine the first T n+1 Segmented steel shell and the first T n The initial gap between the matching parts at the corresponding monitoring points between the segmented steel shells is adjusted to a preset range to obtain the spacing between the matching parts, and the first segment is hoisted. T n+1 Segmented steel shell and connecting matching parts.

[0005] Preferably, the monitoring point is located at the first T n+1 At the midpoint of the four sides on the upper surface of the segmental steel shell.

[0006] Preferably, the calculation of the first T n+1 The theoretical slope of the segmental steel shell is: ; ; In the formula, for T n+1 Segmental steel shell longitudinal slope, for T n+1 The transverse slope of the segmental steel shell bridge For point T n+1 -1 mileage, for T n+1 -3 mileage, for T n+1 Elevation of -1, for T n+1 Elevation of -3, for T n -1 mileage, for T n -3 mileage, for T n Elevation of -1, forT n+1 - offset of -2, is T n+1 - offset of -4, is T n+1 - elevation of -2, is T n+1 - elevation of -4, is T n - offset of -2, is T n - offset of -4, is T n - elevation of -2, is T n - elevation of -4.

[0007] Preferably, the first T n actual slope of the segmental steel shell is: ; ; wherein is T n the longitudinal slope of the segmental steel shell, is T n the transverse slope of the segmental steel shell, is T n - distance of -1, is T n - distance of -3, is T n - elevation of -1, is T n - elevation of -3, is T n-1 - distance of -1, is T n-1 - distance of -3, is T n-1 - elevation of -2, is T n-1 - elevation of -3, is T n-2 offset, for T n -4 offset for T n -2 elevation, for T n-1 -2 offset, for T n-1 -4 offset for T n-1 -2 elevation.

[0008] Preferably, calculation T n+1 Segmented steel shell and T n The included angle of the segmental steel shell is: ; ; In the formula, for T n+1 Segmented steel shell and T n The angle of the segmental steel shell along the bridge direction, for T n+1 Segmented steel shell and T n The transverse angle of the segmental steel shell bridge for T n+1 Segmental steel shell longitudinal slope, for T n+1 The transverse slope of the segmental steel shell bridge for T n Segmental steel shell longitudinal slope, for T n Slope of segmental steel shell bridge.

[0009] Preferably, the formula for calculating the spacing between the mating parts is: ; In the formula, L For the length of the matching parts, α for T n+1 Segmented steel shell and T n The included angle of the segmental steel shell, h The initial gap between the mating parts, For the spacing between the mating parts.

[0010] Preferably, the matching parts are disposed on the upper and lower surfaces of the steel shell at the monitoring point locations, and one matching part corresponds to each monitoring point location.

[0011] Preferably, the matching component and the surface of the steel shell are on the same horizontal plane, and the allowable deviation between the elevation of the matching component and the elevation of the steel shell surface is no more than 1 mm.

[0012] Compared with the prior art, the present invention has the following advantages and technical effects: (1) The present invention first calculates the tower structure through design drawings. T n+1 The theoretical coordinates of four monitoring points on the upper surface of the segmental steel shell were determined, and then the coordinates of the cable tower were obtained by measuring with a total station. T n The measured coordinates of four monitoring points on the upper and lower surfaces of the segmental steel shell were used to calculate the tower's position. T n+1 Theoretical slope of segmental steel shell k 1 With Sota T n Actual slope of segmental steel shell k 2 The gap between the steel shells is obtained by calculating the angle between the slopes to determine the gap of the matching parts corresponding to the monitoring points. h Adjust to the calculated value H Within the allowable error range; (2) The present invention adjusts the cable tower based on the gap of the matching parts. T n+1 The position of the segmental steel shell, compared to through T n+1 Segmental steel shell actual measurement monitoring points x Axis coordinates y Axis coordinates and z The position of the steel shell is adjusted using three parameters: axis coordinates, which makes the operation more convenient and allows for adjustments at multiple time periods. This avoids the influence of temperature on the measurement data and eliminates the need to wait for on-site measurement and adjustment during subsequent construction work, thus speeding up the construction progress. (3) This invention achieves high-precision positioning of the steel shell of the pylon, ensuring the accuracy of subsequent pylon segment splicing and installation, reducing the time for adjusting the steel shell coordinates on site, avoiding the influence of temperature on the measurement data, accelerating the construction progress, and is easy to operate, highly accurate, and effective. It can be widely used in the positioning and measurement construction of bridge pylons. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the device arrangement structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the slope in an embodiment of the present invention; Figure 3 This is a schematic diagram of the gap between the mating parts according to an embodiment of the present invention. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0016] like Figures 1-3 This embodiment proposes a method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower, including: Choose Sotati T n+1 Several monitoring points on the upper surface of the segmental steel shell were obtained, and the theoretical coordinates of the monitoring points were obtained based on the engineering measurement benchmarks and design drawings; Using a total station to measure the Sotad. T n The actual coordinates of the upper and lower surfaces of the segmental steel shell, wherein the total station is arranged around the installation location of the cable tower steel shell and the measurements are performed based on the engineering surveying reference points; According to the first T n+1 The theoretical coordinates of the monitoring points on the upper surface of the segmental steel shell and the first T n The actual coordinates of the upper surface of the segmental steel shell are used to calculate the first... T n+1 Theoretical slope of segmental steel shell; According to the first T n The actual coordinates of the upper and lower surfaces of the segmental steel shell are used to calculate the first... T n The actual slope of the segmental steel shell; According to the first T n+1 The theoretical slope of the segmental steel shell is related to the first... Tn Calculation of the actual slope of the segmental steel shell T n+1 Segmented steel shell and T n The included angle of the segmented steel shell, and determine the first T n+1 Segmented steel shell and the first T n The initial gap between the matching parts at the corresponding monitoring points between the segmented steel shells is adjusted to a preset range to obtain the spacing between the matching parts, and the first segment is hoisted. T n+1 Segmented steel shell and connecting matching parts.

[0017] Furthermore, in this embodiment, Sota is selected. T n+1 The four midpoints on the upper surface of the segmental steel shell are taken as target points. The theoretical coordinates of these four monitoring points are obtained based on the engineering measurement benchmarks and design drawings. x 1 , y 1 , z 1 ), ( x 2 , y 2 , z 2 ), ( x 3 , y 3 , z 3 ), ( x 4 , y 4 , z 4 ).

[0018] Specifically, engineering surveying benchmarks refer to fundamental points used in construction projects to determine the location, elevation, direction, and other characteristics of features. These benchmarks are typically designated and precisely measured on a map by a surveying bureau to provide basic information such as the absolute location, elevation, and coordinates of the construction project. These benchmarks are marked on the ground at the construction site. Based on these benchmarks and the cable tower design drawings, the design coordinates (theoretical coordinates) of any point on the cable tower's steel shell can be calculated. The surface of the cable tower's steel shell includes six straight lines. In this embodiment, a cable tower is selected... T n+1 Four points on the upper surface of the segmental steel shell are designated as monitoring points. These four monitoring points specifically include the cable tower. T n+1 The four midpoints of the four straight edges on the upper surface of the segmental steel shell are shown below.Figure 1 middle T n+1 -1 , T n+1 -2 , T n+1 -3 , T n+1 -4 The theoretical coordinates of the four monitoring points can be obtained using engineering survey benchmarks and design drawings. x 1 , y 1 , z 1 ), ( x 2 , y 2 , z 2 ), ( x 3 , y 3 , z 3 ), ( x 4 , y 4 , z 4 ).

[0019] Furthermore, in Sota T n Leica circular prisms are mounted on the upper and lower surfaces of the steel shell, on the cable tower. T n A total station was set up around the steel shell installation location. The actual coordinates of the eight monitoring points were obtained based on the engineering survey benchmark. x′ 1 , y′ 1 , z′ 1 ), ( x′ 2 , y′ 2 , z′ 2 ), ( x′ 3 , y′ 3 , z′ 3 ), ( x′ 4 , y′ 4 , z′4 )and( x′′ 1 , y′′ 1 , z′′ 1 ), ( x′′ 2 , y′′ 2 , z′′ 2 ), ( x′′ 3 , y′ ′ 3 , z′′ 3 ), ( x′′ 4 , y′′ 4 , z′′ 4 ).

[0020] It should be noted that the cable tower can be measured based on engineering surveying benchmarks. T n The actual coordinates of any point on the steel shell. Among them, the cable tower... T n The steel shell surface includes six straight lines. In this embodiment, a cable tower is selected. T n Eight points on the upper and lower surfaces of the steel shell were designated as monitoring points. These eight monitoring points specifically included the cable tower. T n The four midpoints of the four straight edges on the upper surface and the four midpoints of the four straight edges on the lower surface of the steel shell are shown in [reference]. Figure 1 middle T n -1 , T n -2 , T n -3 , T n -4 , T n-1 -1 , T n-1 -2 , T n-1 -3 , T n-1 -4 .

[0021] In Sota T nA steel ruler is installed on the upper and lower surfaces of the segmental steel shell. The two ends of the steel ruler are respectively placed against the edge of the outer surface of the steel shell. The location of the monitoring point is determined by reading the 1 / 2 position of the steel ruler reading.

[0022] Using a total station, the measured coordinates of eight monitoring points can be obtained through engineering surveying benchmarks. x′ 1 , y ′ 1 , z′ 1 ), ( x′ 2 , y′ 2 , z′ 2 ), ( x′ 3 , y′ 3 , z′ 3 ), ( x′ 4 , y′ 4 , z′ 4 )and( x′′ 1 , y′′ 1 , z′′ 1 ), ( x′′ 2 , y′′ 2 , z′ ′ 2 ), ( x′′ 3 , y′′ 3 , z′′ 3 ), ( x′′ 4 , y′′ 4 , z′′ 4 ).

[0023] In addition, in Sota T n Total stations, also known as electronic total stations, are arranged around the steel shell installation location. These are high-tech measuring instruments that integrate optics, mechanics, and electronics, and are capable of measuring the azimuth and coordinates of target points.

[0024] Furthermore, according to Sota Tn+1 Theoretical coordinates of four monitoring points on the upper surface of the segmental steel shell and T n The measured coordinates of eight monitoring points on the upper and lower surfaces of the segmental steel shell were obtained for the cable tower. T n Theoretical slope of segmental steel shell k 1 With Sota T n Actual slope of segmental steel shell k 2 ; Specifically, according to T n+1 The theoretical coordinates of four monitoring points on the upper surface of the segmental steel shell and T n The measured coordinates of four monitoring points on the upper surface of the segmental steel shell were obtained and calculated. T n+1 Theoretical slope of segmental steel shell and cable tower T n The actual slope of the segmental steel shell is shown in [reference]. Figure 2 In k 1 , k 2 , k 1 , k 2 .

[0025] Specifically, Sota T n+1 Theoretical slope of segmental steel shell k 1 The calculation formula is: ; ; In the formula, for T n+1 Segmental steel shell longitudinal slope for T n+1 The transverse slope of the segmental steel shell bridge For point T n+1 -1 mileage, for T n+1 -3 mileage, for T n+1 Elevation of -1, for T n+1 Elevation of -3, for T n-1 mileage, for T n -3 mileage, for T n Elevation of -1, for T n+1 -2 offset, for T n+1 -4 offset for T n+1 -2 elevation, for T n+1 -4 elevation, for T n -2 offset, for T n -4 offset for T n -2 elevation, for T n -4 elevation.

[0026] Sota T n The formula for calculating the actual slope of the segmental steel shell is: ; ; In the formula, for T n Segmental steel shell longitudinal slope, for T n The transverse slope of the segmental steel shell bridge for T n -1 mileage, for T n -3 mileage, for T n Elevation of -1, for T n Elevation of -3, for T n-1 -1 mileage, for T n-1 -3 mileage, forT n-1 -2 elevation, for T n-1 Elevation of -3, for T n -2 offset, for T n -4 offset for T n -2 elevation, for T n-1 -2 offset, for T n-1 -4 offset for T n-1 -2 elevation.

[0027] Furthermore, based on T n+1 Theoretical slope of segmental steel shell k 1 and T n Measured slope of segmental steel shell k 2 ,get T n+1 Segmented steel shell and T n Segmental steel shell angle α : ; ; In the formula, for T n+1 Segmented steel shell and T n The angle of the segmental steel shell along the bridge direction, for T n+1 Segmented steel shell and T n The transverse angle of the segmental steel shell bridge for T n+1 Segmental steel shell longitudinal slope, for T n+1 The transverse slope of the segmental steel shell bridge for T n Segmental steel shell longitudinal slope, for Tn Slope of segmental steel shell bridge.

[0028] Furthermore, matching components are installed at monitoring points on the upper and lower surfaces of the cable tower's steel shell to secure the cable tower. T n+1 The segmental steel shell is hoisted above its installation position.

[0029] Specifically, in Sota T n Top surface of segmental steel shell, T n+1 A matching component of a certain length and width is installed on the bottom surface of the segmental steel shell. After the matching component is installed, it is determined by leveling that the matching component and the upper and lower surfaces of the steel shell are on the same horizontal plane. At this time, it is judged whether the elevation deviation between the matching components is less than a first allowable value. If so, it indicates that the installation is in place. In this embodiment, the first allowable value is set to 1 mm.

[0030] Furthermore, based on the design drawings and steel ruler, determine... T n+1 Segmental steel shell lower surface matching parts and T n Initial gap of the matching parts on the upper surface of the segmental steel shell h Within permissible limits; Specifically, marks are set at the midpoints of the top and bottom surfaces of the eight mating parts. The height difference between the marked points is measured using a steel ruler, and adjustments are made based on the height difference. T n+1 The spatial attitude of the segmental steel shell is adjusted until the deviation between the measured and design values ​​of the initial clearance of the mating components meets the allowable range, so that the tower can... T n+1 The spatial condition of the segmental steel shell meets the requirements. In this embodiment, the allowable range is set to 1 mm.

[0031] Furthermore, based on the length of the matching parts L , T n+1 Segmented steel shell and T n Segmental steel shell angle α Obtain the spacing of the matching parts at the corresponding positions. H : ; In the formula, L For the length of the matching parts, α for T n+1 Segmented steel shell and T n The included angle of the segmental steel shell, h This represents the initial clearance between the mating parts.

[0032] Based on the spacing of the matching partsH Through the T n+1 The spatial attitude of the segmental steel shell is adjusted. A steel ruler is used to measure the gap at the marked points of the mating parts, and the deviation between the measured and calculated values ​​is determined to be within the second allowable range. If it exceeds the second allowable range, the adjustment is continued based on the gap at the marked points of the mating parts. T n+1 The segmental steel shell is fine-tuned until the deviation between the measured value and the theoretical value of the gap between the mating parts meets the requirements. In this embodiment, the second allowable value is set to 1 mm.

[0033] Specifically, in T n+1 A steel ruler is placed at the matching part on the bottom surface of the segmental steel shell for alignment. x The spacing between the shaft mating parts is measured; if it is greater than the spacing between the mating parts... H Then for T n+1 Segmented steel shell x Adjust the shaft tilt angle until the deviation between the measured value and the theoretical value meets the requirements, then fix it. T n+1 Segmented steel shell x Axis; then for y The spacing between the shaft mating parts is measured; if it is greater than the spacing between the mating parts... H Then for T n+1 Segmented steel shell y Adjust the shaft tilt angle until the deviation between the measured value and the theoretical value meets the requirements, then fix it. T n+1 Segmented steel shell y axis, at this time T n+1 Once the spatial orientation of the segmental steel shell is adjusted to the correct position, the next steps, such as plate welding and weld seam welding, can proceed.

[0034] In summary, this embodiment adjusts the position of the tower's steel shell based on a single parameter—the gap between the matching components—compared to adjusting based on monitoring points. x Axis coordinates y Axis coordinates and z The invention uses three parameters—axis, coordinate, and axial—to adjust the position of the steel shell, making operation more convenient. Furthermore, by setting matching parts at the bottom of the steel shell to be installed and adjusting the gap between these parts, the spatial position of the steel shell is adjusted, further improving operational convenience. This invention achieves high-precision positioning of the tower's steel shell, ensuring the accuracy of subsequent tower segment splicing and installation. This invention is easy to operate, highly accurate, and effective, and can be widely applied in the positioning and measurement construction of bridge towers.

[0035] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower, characterized in that, include: Choose Sotati T n+1 Several monitoring points on the upper surface of the segmental steel shell were obtained, and the theoretical coordinates of the monitoring points were obtained based on the engineering measurement benchmarks and design drawings; Using a total station to measure the Sotad. T n The actual coordinates of the upper and lower surfaces of the segmental steel shell, wherein the total station is arranged around the installation location of the cable tower steel shell and the measurements are performed based on the engineering surveying reference points; According to the first T n+1 The theoretical coordinates of the monitoring points on the upper surface of the segmental steel shell and the first T n The actual coordinates of the upper surface of the segmental steel shell are used to calculate the first... T n+1 Theoretical slope of segmental steel shell; According to the first T n The actual coordinates of the upper and lower surfaces of the segmental steel shell are used to calculate the first... T n The actual slope of the segmental steel shell; According to the first T n+1 The theoretical slope of the segmental steel shell is related to the first... T n Calculation of the actual slope of the segmental steel shell T n+1 Segmented steel shell and T n The included angle of the segmental steel shell, and determine the first T n+1 Segmented steel shell and the first T n The initial gap between the matching parts at the corresponding monitoring points between the segmented steel shells is adjusted to a preset range to obtain the spacing between the matching parts, and the first segment is hoisted. T n+1 Segmented steel shell and connecting matching parts.

2. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, The monitoring point is located at the first... T n+1 At the midpoint of the four sides on the upper surface of the segmental steel shell.

3. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, Calculate the first T n+1 The theoretical slope of the segmental steel shell is: ; ; In the formula, for T n+1 Segmental steel shell longitudinal slope, for T n+1 The transverse slope of the segmental steel shell bridge For point T n+1 -1 mileage, for T n+1 -3 mileage, for T n+1 Elevation of -1, for T n+1 Elevation of -3, for T n -1 mileage, for T n -3 mileage, for T n Elevation of -1, for T n+1 -2 offset, for T n+1 -4 offset for T n+1 -2 elevation, for T n+1 -4 elevation, for T n -2 offset, for T n -4 offset for T n -2 elevation, for T n -4 elevation.

4. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, Calculate the first T n The actual slope of the segmental steel shell is: ; ; In the formula, for T n Segmental steel shell longitudinal slope, for T n The transverse slope of the segmental steel shell bridge for T n -1 mileage, for T n -3 mileage, for T n Elevation of -1, for T n Elevation of -3, for T n-1 -1 mileage, for T n-1 -3 mileage, for T n-1 -2 elevation, for T n-1 Elevation of -3, for T n -2 offset, for T n -4 offset for T n -2 elevation, for T n-1 -2 offset, for T n-1 -4 offset for T n-1 -2 elevation.

5. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, calculate T n+1 Segmented steel shell and T n The included angle of the segmental steel shell is: ; ; In the formula, for T n+1 Segmented steel shell and T n The angle of the segmental steel shell along the bridge direction, for T n+1 Segmented steel shell and T n The transverse angle of the segmental steel shell bridge for T n+1 Segmental steel shell longitudinal slope, for T n+1 The transverse slope of the segmental steel shell bridge for T n Segmental steel shell longitudinal slope, for T n Slope of segmental steel shell bridge.

6. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, The formula for calculating the spacing between the mating parts is: ; In the formula, L For the length of the matching parts, α for T n+1 Segmented steel shell and T n The included angle of the segmental steel shell, h The initial gap between the mating parts, For the spacing between the mating parts.

7. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 1, characterized in that, The matching parts are disposed on the upper and lower surfaces of the steel shell at the monitoring point locations, and one matching part corresponds to each monitoring point location.

8. The method for positioning and adjusting the steel shell of a bridge steel-concrete composite cable tower according to claim 7, characterized in that, The matching component is on the same horizontal plane as the steel shell surface, and the allowable deviation between the elevation of the matching component and the elevation of the steel shell surface is no more than 1 mm.