Verticality pre-offset construction method of assembly type cable crane tower

Abstract

The invention belongs to the technical field of cable tower crane installation, and particularly relates to a perpendicularity pre-offset construction method of an assembly type cable tower crane. The method comprises the following steps: 1, construction preparation: firstly completing the design of a cable tower crane, including structural design, pre-offset calculation and construction drawing drawing; according to the perpendicularity pre-offset construction method of the assembly type cable crane tower, deformation caused by various loads in the construction and use process can be offset through implementation of pre-offset, and therefore the stability of the structure is improved; through the accurate pre-offset design, the requirement for later field adjustment can be reduced, and the cost and the risk are reduced; the pre-offset construction method is beneficial to preventing the structure from accidentally inclining or deforming in the construction process, and the construction safety is improved; by implementing the pre-offset construction method, the perpendicularity of the cable tower crane can be accurately controlled, and it is ensured that the cable tower crane is kept stable in the using period; through the pre-offset design, the internal force distribution of the structure can be optimized, the bearing capacity of the structure is improved, and the service life of the structure is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of installation of assembled cable towers, and in particular to a verticality pre-offset construction method for assembled cable towers. Background Art

[0002] At present, the construction process of assembled cable towers has extremely high requirements for verticality. Any slight deviation may lead to structural instability, affecting construction safety and efficiency. There are also various unpredictable factors at the construction site, such as wind force, temperature changes, etc., which may affect the verticality of the tower. However, during the installation and construction, only the tower is docked and installed, and sensors are set for monitoring after installation. When the offset is detected, adjustments are made. When the installation cannot be performed, pre-offset setting construction is performed, resulting in low construction efficiency. Therefore, a pre-offset construction method for the verticality of assembled cable towers is needed. Summary of the invention

[0003] Based on the existing technical problems, the present invention proposes a verticality pre-offset construction method for an assembled cable tower.

[0004] The present invention proposes a method for pre-shifting the verticality of an assembled cable tower, which comprises the following steps: Step 1, construction preparation, first completing the design of the cable tower, including structural design, pre-shift calculation and construction drawing; clarifying the specific value of the pre-shift according to the construction plan; and preparing the required materials and equipment, using tower units, connecting bolts, measuring instruments and adjustment mechanisms.

[0005] Step 2: Foundation construction: perform ground treatment on the tower foundation and then complete the pouring of concrete.

[0006] Step 3: Tower assembly: On top of the concrete foundation, assemble the tower units section by section from bottom to top, and tighten all connecting bolts using a torque wrench.

[0007] Step 4: Implement pre-offset adjustment. Implement the pre-offset amount through the adjustment mechanism and adjust it step by step in stages. At the same time, use measuring instruments to monitor the verticality of the tower in real time and perform calibration.

[0008] Step 5: Fix and check after adjustment. After the pre-offset adjustment is completed, fix all adjustment parts, re-measure the tower to ensure that the verticality meets the design requirements, and then conduct acceptance.

[0009] Step 6: Construction monitoring and recording: During the entire construction process, regularly monitor the verticality changes of the tower. When deviations occur, make timely adjustments and record all measurement data and adjustment processes for subsequent analysis and optimization.

[0010] Step 7: Maintenance and optimization: During the use of the cable tower, regular inspection and maintenance should be carried out, and the pre-offset construction method should be optimized based on actual monitoring data and construction experience.

[0011] Preferably, in the step 1, a finite element analysis software is used to first establish a three-dimensional model of the cable tower in the structural design, and loads are applied to the model, including deadweight, construction load, wind load and earthquake, and analysis is performed to calculate the deformation of the tower under various load combinations;

[0012] Based on the analysis results, determine the maximum deformation of the tower body under normal use conditions, and compare the deformation obtained from the analysis with the maximum deviation allowed in the specification. When the analysis result is within the allowable range of the specification, it can be determined that the value is the allowable deviation; when it exceeds the range, the design needs to be re-evaluated and reinforcement measures need to be taken.

[0013] Preferably, in the step one, the pre-offset calculation selects the elastic modulus E of the material, the Poisson's ratio ν of the material and the density ρ of the material, as well as the cross-sectional area A of the structure, the moment of inertia I of the structure, the height L of the structure and the gravity acceleration g of the structure; and calculates the maximum deformation of the tower body in different directions, wherein the maximum deformation includes the cross-sectional bending stiffness EI, the cross-sectional shear stiffness GA, the cross-sectional torsional stiffness GJ, the deadweight load W of the structure, the uniformly distributed load q of the structure and the concentrated load P of the structure.

[0014] Preferably, the calculation formula of the cross-section bending stiffness EI is: EI=E×I;

[0015] The calculation formula of the cross-section shear stiffness GA is: GA = G × A; where the shear modulus G is calculated by the elastic modulus E of the material and the Poisson's ratio ν of the material, and its calculation formula is:

[0016]

[0017] The calculation formula of the cross-sectional torsional stiffness GJ is: GJ = G × J; where the polar moment of inertia J is calculated by the cross-sectional area A of the structure and the height L of the structure, and its calculation formula is:

[0018] Preferably, the calculation formula of the deadweight load W of the structure is: W=weight per unit volume×structure volume; wherein weight per unit volume=density ρ of the material×gravitational acceleration g of the structure;

[0019] The calculation formula of the uniform load q of the structure is: uniform load q = deadweight load W ÷ structure length;

[0020] The calculation formula for the concentrated load P of the structure is: concentrated load P = self-weight load W.

[0021] Preferably, the pre-offset is calculated as follows: pre-offset=maximum deformation×(1+safety factor), wherein the safety factor is between 1.1 and 1.5.

[0022] Preferably, the adjustment mechanism comprises an adjustment ring, a sleeve hole is provided at the bottom of the adjustment ring, the inner wall of the sleeve hole is sleeved with the surface of the top mounting flange of the tower unit at the bottom end, and a clamping hole is provided at the top of the adjustment ring, the inner wall of the clamping hole is sleeved with the surface of the bottom mounting flange of the tower unit at the top end;

[0023] A bolt extrusion hole is provided on the surface of the mounting flange at the bottom end of the tower unit at the top end, and a threaded locking hole is provided on the surface of the mounting flange at the top end of the tower unit at the bottom end. A clamping through hole is provided in the middle of the adjusting ring. The threaded inner wall of the threaded locking hole is threadedly connected with the threaded surface of the connecting bolt, and the threaded surface of the connecting bolt is also movably connected with the inner wall of the clamping through hole. The limiting top surface of the connecting bolt is in extrusion contact with the inner wall of the bolt extrusion hole.

[0024] Preferably, a driving cavity is opened inside the adjusting ring, and four of the driving cavities are equally divided in a circular array inside the adjusting ring. An adjustment slot is opened at one end of the driving cavity, and the inner walls of the four adjustment slots are fixedly connected to the inner wall of the clamping hole. An adjustment pad is slidably inserted into the inner wall of the adjustment slot, and the top surface of the adjustment pad is inclined. The top inclined surfaces of the four adjustment pads are in contact with the bottom of the bottom mounting flange of the tower unit at the top.

[0025] Preferably, a driving piston is also fixedly mounted on one end of the adjusting pad, a sealing ring is mounted on the surface of the driving piston, the surface of the sealing ring and the surface of the driving piston are both slidably plugged with the inner wall of the driving chamber, one end of the driving piston and the relative internal space of the driving chamber constitute an oil pressure space, and hydraulic oil is arranged inside, one end of the driving piston is also fixedly mounted on a spring, the other end of the spring is fixedly mounted on the inner wall of the driving chamber, and the spring is located inside the oil pressure space.

[0026] Preferably, the inner wall of the driving cavity is also provided with connecting holes, one ends of the four connecting holes penetrate through and extend to the outside of the adjusting ring, an operating tube is fixedly installed on the inner wall of the connecting hole, a sealing gasket is installed on the inner wall of one end of the operating tube, a compression spring is fixedly installed on the other end of the operating tube, a sealing ball is fixedly installed on one end of the compression spring, and the surface of the sealing ball is squeezed and sealed with the surface of the sealing gasket.

[0027] The beneficial effects of the present invention are:

[0028] The implementation of pre-offset helps to offset deformation caused by various loads during construction and use, thereby improving the stability of the structure; accurate pre-offset design can reduce the need for later on-site adjustments, reducing costs and risks; the pre-offset construction method helps prevent accidental tilting or deformation of the structure during construction, improving construction safety; the implementation of the pre-offset construction method can accurately control the verticality of the cable tower to ensure its stability during use; the pre-offset design can optimize the internal force distribution of the structure, improving the bearing capacity and service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a verticality pre-offset construction method of an assembled cable tower;

[0030] Figure 2 A three-dimensional diagram of an adjustment mechanism for a vertical pre-offset construction method of an assembled cable tower;

[0031] Figure 3 It is a three-dimensional exploded diagram of the adjustment mechanism of a verticality pre-offset construction method of an assembled cable tower;

[0032] Figure 4 It is an exploded diagram of the adjustment ring structure of a vertical pre-offset construction method of an assembled cable tower;

[0033] Figure 5 A three-dimensional diagram of a socket hole structure of a vertical pre-offset construction method for an assembled cable tower;

[0034] Figure 6 A vertical pre-offset construction method for an assembled cable tower Figure 4 A magnified view of the structure in the middle.

[0035] In the figure: 1. tower unit; 2. connecting bolt; 3. adjusting mechanism; 31. adjusting ring; 32. sleeve hole; 33. clamping hole; 34. bolt extrusion hole; 35. thread locking hole; 36. clamping through hole; 37. driving chamber; 38. adjusting slot; 39. adjusting pad; 310. driving piston; 311. sealing ring; 312. spring; 313. connecting hole; 314. operating tube; 315. sealing pad; 316. compression spring; 317. sealing ball. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Reference Figure 1-Figure 6A vertical pre-offset construction method for an assembled cable tower comprises the following steps: Step 1, construction preparation, first completing the design of the cable tower, including structural design, pre-offset calculation and construction drawing drawing; according to the construction plan, clarifying the specific value of the pre-offset; and preparing the required materials and equipment, using tower unit 1, connecting bolts 2, measuring instruments, and adjustment mechanism 3.

[0038] Step 1: In the structural design, finite element analysis software is used to first establish a three-dimensional model of the cable tower, apply loads to the model, including deadweight, construction load, wind load and earthquake, run analysis, and calculate the deformation of the tower under various load combinations.

[0039] Based on the analysis results, determine the maximum deformation of the tower body under normal use conditions, and compare the deformation obtained from the analysis with the maximum deviation allowed in the specification. When the analysis result is within the allowable range of the specification, it can be determined that the value is the allowable deviation; when it exceeds the range, the design needs to be re-evaluated and reinforcement measures need to be taken.

[0040] In step one, the pre-offset calculation selects the elastic modulus E of the material, the Poisson's ratio ν of the material and the density ρ of the material, as well as the cross-sectional area A of the structure, the moment of inertia I of the structure, the height L of the structure and the gravity acceleration g of the structure; the maximum deformation of the tower body in different directions is calculated, wherein the maximum deformation includes the cross-sectional bending stiffness EI, the cross-sectional shear stiffness GA, the cross-sectional torsional stiffness GJ, the deadweight load W of the structure, the uniformly distributed load q of the structure and the concentrated load P of the structure.

[0041] The calculation formula of section bending stiffness EI is: EI = E × I;

[0042] The calculation formula of the cross-section shear stiffness GA is: GA = G × A; where the shear modulus G is calculated by the elastic modulus E of the material and the Poisson's ratio ν of the material, and its calculation formula is:

[0043]

[0044] The calculation formula of the cross-sectional torsional stiffness GJ is: GJ = G × J; where the polar moment of inertia J is calculated by the cross-sectional area A of the structure and the height L of the structure, and its calculation formula is:

[0045] The calculation formula of the deadweight load W of the structure is: W = unit volume weight × structure volume; where unit volume weight = material density ρ × structure gravity acceleration g;

[0046] The calculation formula of the uniform load q of the structure is: uniform load q = deadweight load W ÷ structure length;

[0047] The calculation formula for the concentrated load P of the structure is: concentrated load P = self-weight load W.

[0048] Pre-offset calculation: Pre-offset = maximum deformation × (1 + safety factor), where the safety factor is between 1.1 and 1.5.

[0049] Step 2: Foundation construction: perform ground treatment on the tower foundation and then complete the pouring of concrete.

[0050] Step 3: Tower assembly: On top of the concrete foundation, assemble the tower units 1 section by section from bottom to top, and tighten all connecting bolts 2 using a torque wrench.

[0051] Step 4: Implement pre-offset adjustment. Implement the pre-offset amount through the adjustment mechanism 3, and adjust it step by step in stages. At the same time, use measuring instruments to monitor the verticality of the tower in real time and perform calibration.

[0052] The adjustment mechanism 3 includes an adjustment ring 31, a sleeve hole 32 is provided at the bottom of the adjustment ring 31, and the inner wall of the sleeve hole 32 is sleeved with the surface of the top mounting flange of the tower unit 1 at the bottom end; a clamping hole 33 is provided at the top of the adjustment ring 31, and the inner wall of the clamping hole 33 is sleeved with the surface of the bottom mounting flange of the tower unit 1 at the top; a bolt extrusion hole 34 is provided on the surface of the mounting flange at the bottom end of the tower unit 1 at the top, and a threaded locking hole 35 is provided on the surface of the mounting flange at the top end of the tower unit 1 at the bottom; a clamping through hole 36 is provided in the middle of the adjustment ring 31, and the threaded inner wall of the threaded locking hole 35 is threadedly connected with the threaded surface of the connecting bolt 2, and the threaded surface of the connecting bolt 2 is also movably sleeved with the inner wall of the clamping through hole 36, and the limiting top surface of the connecting bolt 2 is in extrusion contact with the inner wall of the bolt extrusion hole 34.

[0053] Specifically implemented in this way, the design of the adjustment ring 31 adopts a modular approach, which improves the flexibility and repeatability of the design; the design of the clamping hole 33 and the clamping through hole 36 allows the adjustment ring 31 to be easily installed and adjusted, thereby improving construction efficiency; through the threaded connection of the threaded locking hole 35 and the connecting bolt 2, a stable connection can be achieved, avoiding the risk of loosening and falling off.

[0054] A driving cavity 37 is provided inside the adjusting ring 31, and four driving cavities 37 are equally divided in a circular array inside the adjusting ring 31. An adjusting slot 38 is provided at one end of the driving cavity 37. The inner walls of the four adjusting slots 38 are fixedly connected to the inner wall of the clamping hole 33. An adjusting pad 39 is slidably inserted into the inner wall of the adjusting slot 38. The top surface of the adjusting pad 39 is inclined, and the top inclined surfaces of the four adjusting pads 39 are in contact with the bottom of the bottom mounting flange of the top tower unit 1.

[0055] Specifically implemented in this way, the inclined shape of the adjustment pad 39 can achieve fine-tuning of the tower unit 1, thereby accurately controlling the verticality and ensuring the stability and safety of the structure; the drive cavity 37 is evenly distributed inside the adjustment ring 31, ensuring the uniform distribution of the verticality adjustment force and avoiding local stress concentration; the adjustment pad 39 can be slidably inserted, so that the verticality adjustment can be repeated during the construction process to adapt to different construction conditions.

[0056] A driving piston 310 is also fixedly installed at one end of the adjusting pad 39, and a sealing ring 311 is installed on the surface of the driving piston 310. The surface of the sealing ring 311 and the surface of the driving piston 310 are both slidably inserted into the inner wall of the driving chamber 37. One end of the driving piston 310 and the relative internal space of the driving chamber 37 constitute an oil pressure space, and hydraulic oil is arranged inside. A spring 312 is also fixedly installed at one end of the driving piston 310, and the other end of the spring 312 is fixedly installed on the inner wall of the driving chamber 37, and the spring 312 is located inside the oil pressure space.

[0057] Specifically, the piston 310 is driven by the pressure of the hydraulic oil to push the adjusting pad 39 to achieve precise adjustment of the verticality of the tower unit 1. The hydraulic drive provides a stable and controllable force, reducing the uncertainty of manual adjustment; the sealing ring 311 ensures the airtightness of the oil pressure space, prevents the leakage of hydraulic oil, and ensures the stability and reliability of the hydraulic system; the function of the spring 312 is to provide a rebound force after the driving piston 310 stops moving, so that the adjusting pad 39 automatically returns to the initial position, reducing the need for readjustment; the hydraulic drive system has higher durability than manual adjustment, reducing the need for maintenance and replacement; the verticality adjustment of the hydraulic drive can be automated, improving construction efficiency and accuracy.

[0058] The inner wall of the driving cavity 37 is also provided with connecting holes 313, one ends of the four connecting holes 313 penetrate through and extend to the outside of the adjusting ring 31, an operating tube 314 is fixedly installed on the inner wall of the connecting hole 313, a sealing gasket 315 is installed on the inner wall of one end of the operating tube 314, a compression spring 316 is fixedly installed on the other end of the operating tube 314, a sealing ball 317 is fixedly installed on one end of the compression spring 316, and the surface of the sealing ball 317 is squeezed and sealed with the surface of the sealing gasket 315.

[0059] Specifically implemented in this way, the concealed operating tube 314 is not visible from the outside of the structure, which improves the overall aesthetics of the structure; the concealed operating tube 314 makes the structure more compact, saves space, and improves the efficiency of the structure; and during construction operations, the oil pipe of the hydraulic pump is inserted into the inside of the operating tube 314 to squeeze the sealing ball 317 away from the sealing gasket 315 to inject hydraulic oil for operation and adjustment. When no adjustment operation is required, only the oil pipe of the hydraulic pump needs to be pulled out, and under the action of the compression spring 316, the sealing ball 317 is controlled to squeeze the sealing gasket 315 to seal again.

[0060] During construction and adjustment, the oil pipe of the hydraulic pump is inserted into the inside of the operating pipe 314 to control the hydraulic pressure inside the driving chamber 37 in the corresponding direction, thereby controlling the adjustment pad 39 at the corresponding position to perform telescopic movement, driving the corner of the tower unit 1 at the corresponding position to adjust the pre-offset too high or lower. After the adjustment is completed, the oil pipe is pulled out to control the connecting bolt 2 to lock and position.

[0061] Step 5: Fix and check after adjustment. After the pre-offset adjustment is completed, fix all adjustment parts, re-measure the tower to ensure that the verticality meets the design requirements, and then conduct acceptance.

[0062] Step 6: Construction monitoring and recording: During the entire construction process, regularly monitor the verticality changes of the tower. When deviations occur, make timely adjustments and record all measurement data and adjustment processes for subsequent analysis and optimization.

[0063] Step 7: Maintenance and optimization: During the use of the cable tower, regular inspection and maintenance should be carried out, and the pre-offset construction method should be optimized based on actual monitoring data and construction experience.

[0064] The implementation of pre-offset helps to offset deformation caused by various loads during construction and use, thereby improving the stability of the structure; accurate pre-offset design can reduce the need for later on-site adjustments, reducing costs and risks; the pre-offset construction method helps prevent accidental tilting or deformation of the structure during construction, improving construction safety; the implementation of the pre-offset construction method can accurately control the verticality of the cable tower to ensure its stability during use; the pre-offset design can optimize the internal force distribution of the structure, improving the bearing capacity and service life of the structure.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical pre-deviation construction method for an assembled cable tower, characterized in that: The method comprises the following steps: Step 1, construction preparation, first completing the design of the cable tower, including structural design, pre-offset calculation and construction drawing drawing; clarifying the specific value of the pre-offset according to the construction plan; and preparing the required materials and equipment, using tower units (1), connecting bolts (2), measuring instruments, and adjustment mechanisms (3); Step 2: Foundation construction: treat the foundation of the tower and pour the concrete after treatment; Step 3: Tower assembly: assemble the tower units (1) from bottom to top on the top of the concrete foundation, and tighten all the connecting bolts (2) using a torque wrench; Step 4: Implement pre-offset adjustment, implement the pre-offset amount through the adjustment mechanism (3), and gradually adjust it in stages. At the same time, use a measuring instrument to monitor the verticality of the tower in real time and perform calibration; Step 5: Fix and inspect after adjustment. After the pre-offset adjustment is completed, fix all adjustment parts, re-measure the tower to ensure that the verticality meets the design requirements, and conduct acceptance; Step 6: Construction monitoring and recording. During the entire construction process, the verticality of the tower is regularly monitored. When deviation occurs, timely adjustments are made and all measurement data and adjustment processes are recorded for subsequent analysis and optimization. Step 7: Maintenance and optimization: During the use of the cable tower, regular inspection and maintenance should be carried out, and the pre-offset construction method should be optimized based on actual monitoring data and construction experience.

2. The vertical pre-deviation construction method of an assembled cable tower according to claim 1, characterized in that: In the step 1, a finite element analysis software is used in the structural design to first establish a three-dimensional model of the cable tower, apply loads on the model, including deadweight, construction load, wind load and earthquake, run analysis, and calculate the deformation of the tower under various load combinations; Based on the analysis results, determine the maximum deformation of the tower body under normal use conditions, and compare the deformation obtained from the analysis with the maximum deviation allowed in the specification. When the analysis result is within the allowable range of the specification, the determined value is the allowable deviation; when it exceeds the range, the design needs to be re-evaluated and reinforcement measures need to be taken.

3. The vertical pre-deviation construction method of an assembled cable tower according to claim 1 is characterized by: In the step 1, the pre-offset calculation selects the elastic modulus E of the material, the Poisson's ratio ν of the material and the density ρ of the material, as well as the cross-sectional area A of the structure, the moment of inertia I of the structure, the height L of the structure and the gravity acceleration g of the structure; and calculates the maximum deformation of the tower body in different directions, wherein the maximum deformation includes the cross-sectional bending stiffness EI, the cross-sectional shear stiffness GA, the cross-sectional torsional stiffness GJ, the deadweight load W of the structure, the uniformly distributed load q of the structure and the concentrated load P of the structure.

4. The vertical pre-deviation construction method of an assembled cable tower according to claim 3 is characterized by: The calculation formula of section bending stiffness EI is: EI = E × I; The calculation formula of the cross-section shear stiffness GA is: GA = G × A; where the shear modulus G is calculated by the elastic modulus E of the material and the Poisson's ratio ν of the material, and its calculation formula is: The calculation formula of the cross-sectional torsional stiffness GJ is: GJ = G × J; where the polar moment of inertia J is calculated by the cross-sectional area A of the structure and the height L of the structure, and its calculation formula is:

5. The vertical pre-deviation construction method of an assembled cable tower according to claim 4 is characterized in that: The calculation formula of the deadweight load W of the structure is: W = unit volume weight × structure volume; Wherein, weight per unit volume = density of the material ρ × gravitational acceleration of the structure g; The calculation formula of the uniform load q of the structure is: uniform load q = deadweight load W ÷ structure length; The calculation formula for the concentrated load P of the structure is: concentrated load P = self-weight load W.

6. The vertical pre-deviation construction method of an assembled cable tower according to claim 5, characterized in that: Pre-offset calculation: Pre-offset = maximum deformation × (1 + safety factor), where the safety factor is between 1.1 and 1.

5.

7. The vertical pre-deviation construction method of an assembled cable tower according to claim 1, characterized in that: The adjustment mechanism (3) comprises an adjustment ring (31), the bottom of the adjustment ring (31) is provided with a sleeve hole (32), the inner wall of the sleeve hole (32) is sleeved with the surface of the top mounting flange of the tower unit (1) at the bottom end, and the top of the adjustment ring (31) is provided with a clamping hole (33), the inner wall of the clamping hole (33) is sleeved with the surface of the bottom mounting flange of the tower unit (1) at the top end; A bolt extrusion hole (34) is provided on the surface of the mounting flange at the bottom end of the tower unit (1) at the top end, a threaded locking hole (35) is provided on the surface of the mounting flange at the top end of the tower unit (1) at the bottom end, a clamping through hole (36) is provided in the middle of the adjustment ring (31), the threaded inner wall of the threaded locking hole (35) is threadedly connected to the threaded surface of the connecting bolt (2), the threaded surface of the connecting bolt (2) is also movably sleeved with the inner wall of the clamping through hole (36), and the limiting top surface of the connecting bolt (2) is in extrusion contact with the inner wall of the bolt extrusion hole (34).

8. The vertical pre-deviation construction method of an assembled cable tower according to claim 7, characterized in that: A driving cavity (37) is provided inside the adjusting ring (31), and four of the driving cavities (37) are arranged in an annular array in equal parts inside the adjusting ring (31). An adjusting slot (38) is provided at one end of the driving cavity (37), and the inner walls of the four adjusting slots (38) are fixedly connected to the inner wall of the clamping hole (33). An adjusting pad (39) is slidably inserted into the inner wall of the adjusting slot (38), and the top surface of the adjusting pad (39) is inclined. The top inclined surfaces of the four adjusting pads (39) are in contact with the bottom of the bottom mounting flange of the tower unit (1) at the top.

9. The verticality pre-deviation construction method of an assembled cable tower according to claim 8, characterized in that: A driving piston (310) is also fixedly mounted on one end of the adjusting pad (39), and a sealing ring (311) is mounted on the surface of the driving piston (310). The surface of the sealing ring (311) and the surface of the driving piston (310) are both slidably plugged into the inner wall of the driving chamber (37). An oil pressure space is formed between one end of the driving piston (310) and the relative internal space of the driving chamber (37), and hydraulic oil is arranged inside. A spring (312) is also fixedly mounted on one end of the driving piston (310), and the other end of the spring (312) is fixedly mounted on the inner wall of the driving chamber (37), and the spring (312) is located inside the oil pressure space.

10. A vertical pre-deviation construction method for an assembled cable tower according to claim 9, characterized in that: The inner wall of the driving cavity (37) is also provided with connecting holes (313), one end of each of the four connecting holes (313) penetrates and extends to the outside of the adjusting ring (31), an operating tube (314) is fixedly installed on the inner wall of the connecting hole (313), a sealing gasket (315) is installed on the inner wall of one end of the operating tube (314), a compression spring (316) is fixedly installed on the other end of the operating tube (314), a sealing ball (317) is fixedly installed on one end of the compression spring (316), and the surface of the sealing ball (317) is squeezed and sealed with the surface of the sealing gasket (315).

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