A method and system for adjusting the hoisting posture of a spatially shaped arch rib segment

Abstract

The application provides a spatial special-shaped arch rib segment hoisting posture adjusting method and system, and relates to the hoisting technical field.The spatial special-shaped arch rib segment hoisting posture adjusting method comprises the following steps: an arch bridge comprises multiple arch ribs, the arch ribs comprise a main arch and a secondary arch, the main arch and the secondary arch are connected through inclined rods, along the length direction of the main arch and the secondary arch, the main arch and the secondary arch are provided with multiple groups of hoisting assemblies, the hoisting assembly comprises a lifting hook, a steel wire rope and a shackle, the steel wire rope comprises a first steel wire rope and a second steel wire rope, the lifting hook and the main arch are connected through the first steel wire rope, the lifting hook and the secondary arch are connected through the second steel wire rope and the shackle, and the lifting hooks of the multiple groups of hoisting assemblies are respectively connected with rope and pulley groups through pulley groups.The application can improve the safety of hoisting and posture adjustment, meet the welding assembly requirements of the arch rib on the support, and facilitate on-site construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting, in particular to a spatial special-shaped arch rib segment hoisting posture adjustment method and system. BACKGROUND

[0002] The arch is a very important component of the arch bridge structure, which not only bears the weight of the bridge, but also plays a key role in the aesthetics and stability of the bridge.

[0003] The component structure of the arch needs to be assembled after hoisting, and the posture of the component structure of the arch needs to be adjusted before assembly. In related technologies, the process of adjusting the posture of the component structure of the arch before assembly is relatively complex, which is not conducive to on-site construction and the safety needs to be improved. SUMMARY

[0004] The problem to be solved by the present application is that the process of adjusting the posture of the component structure of the arch before assembly is relatively complex, which is not conducive to on-site construction and the safety needs to be improved.

[0005] To solve the above problems, in a first aspect, the present application provides a spatial special-shaped arch rib segment hoisting posture adjustment method for arranging the arch rib of an arch bridge before fixing. The arch bridge includes multiple segments of the arch rib. The arch rib includes a main arch and a secondary arch. The main arch and the secondary arch are connected by diagonal rods. Along the length direction of the main arch and the secondary arch, the main arch and the secondary arch are provided with multiple groups of hoisting assemblies. The hoisting assembly includes a hook, a steel wire rope and a shackle. The steel wire rope includes a first steel wire rope and a second steel wire rope. The hook and the main arch are connected by the first steel wire rope. The hook and the secondary arch are connected by the second steel wire rope and the shackle. The hooks of the multiple groups of hoisting assemblies are respectively connected by a rope and pulley block and a pulley block. The shackle is arranged close to the secondary arch. The spatial special-shaped arch rib segment hoisting posture adjustment method includes:

[0006] The center of gravity of the arch rib is determined by a three-dimensional model of the arch bridge. The lifting points on the main arch and the secondary arch are arranged based on the center of gravity. The three-dimensional model of the arch bridge includes three-dimensional models of multiple segments of the arch rib.

[0007] The position of the hook is determined according to the shortest length of the steel wire rope, the position of the center of gravity and the position of the lifting point. The center of the hook and the center of gravity are in the same vertical plane. The pulley block and the center of gravity are on the same plumb line.

[0008] The length of the first wire rope is determined according to the distance between the lifting hook and the lifting point on the main arch, and the number of shackles is determined according to the distance between the lifting hook and the lifting point on the auxiliary arch and the length of the second wire rope, the first wire rope is used to guide the installation of the second wire rope, and the number of shackles is used to guide the installation of the shackles.

[0009] After the number of shackles is changed, the transverse posture of the arch rib along the transverse direction perpendicular to the length direction is detected, so that the transverse posture of the arch rib conforms to the standard transverse posture of the arch rib in the three-dimensional model.

[0010] By adjusting the vertical height difference of the lifting hook in a plurality of lifting assemblies, the longitudinal posture of the arch rib conforms to the standard longitudinal posture of the arch rib in the three-dimensional model.

[0011] Optionally, the arrangement of the lifting points of the main arch and the auxiliary arch based on the gravity center comprises:

[0012] For a plurality of lifting assemblies, based on the positions of a plurality of lifting lugs uniformly distributed on the arch rib, at least one lifting lug on the main arch and the auxiliary arch on both sides of the gravity center in the length direction is selected as the lifting point.

[0013] Optionally, after the position of the lifting hook is determined according to the shortest length of the wire rope, the position of the gravity center and the position of the lifting point, it further comprises:

[0014] The force condition of the wire rope between the lifting hook and each lifting point is simulated, and the specifications of the first wire rope and the second wire rope are determined according to the force condition.

[0015] Optionally, the position of the lifting hook is determined according to the shortest length of the wire rope, the position of the gravity center and the position of the lifting point, and the center of the lifting hook is in the same vertical plane as the gravity center.

[0016] Along the length direction, the vertical plane passing through the gravity center is determined;

[0017] Taking the lifting point on the main arch close to the auxiliary arch as the starting point, the installation length of the wire rope with the shortest length is simulated to be inclined upward along the first plumb direction, and the end point thereof is made to intersect with the vertical plane where the gravity center is located, and the end point is taken as the center of the lifting hook.

[0018] Optionally, the number of shackles is determined according to the distance between the lifting hook and the lifting point on the auxiliary arch and the length of the second wire rope.

[0019] acquiring a distance between the hook and the lifting point on the secondary arch, determining a length difference between the distance between the hook and the lifting point on the secondary arch and the determined length of the second steel wire;

[0020] determining, according to the length difference and the single length of the shackle in the series state, a number of shackles corresponding to each section of the second steel wire.

[0021] Optionally, the detecting the transverse posture of the arch rib along the transverse direction after changing the number of shackles, so that the transverse posture of the arch rib conforms to the standard transverse posture of the arch rib in the three-dimensional model, comprises:

[0022] acquiring a first height difference between the bottom of the primary arch and the bottom of the secondary arch in a second plumb direction in real time;

[0023] if a difference between the height difference and the height difference between the bottom of the primary arch and the bottom of the secondary arch in the second plumb direction in the three-dimensional model and the standard height difference is greater than a first preset deviation threshold, adjusting the number of shackles, so that the difference between the height difference acquired in real time and the standard height difference is less than or equal to the first preset deviation threshold.

[0024] Optionally, the adjusting the number of shackles, so that the difference between the height difference acquired in real time and the standard height difference is less than or equal to the first preset deviation threshold, comprises:

[0025] if the height of the bottom of the primary arch is higher than the height of the bottom of the secondary arch, reducing the number of shackles, so that the difference between the height difference acquired in real time and the standard height difference is less than or equal to the first preset deviation threshold;

[0026] if the height of the bottom of the primary arch is lower than the height of the bottom of the secondary arch, increasing the number of shackles, so that the difference between the height difference acquired in real time and the standard height difference is less than or equal to the first preset deviation threshold.

[0027] Optionally, the number of hoisting assemblies of each section of the arch rib is 2, and correspondingly, the number of hooks is 2.

[0028] Optionally, the adjusting the vertical height difference of the hooks in the multiple groups of hoisting assemblies, so that the longitudinal posture of the arch rib conforms to the standard longitudinal posture of the arch rib in the three-dimensional model, comprises:

[0029] determining, along the length direction, a relative position of two hooks in the three-dimensional model and a standard height difference in a third plumb direction;

[0030] Along the length direction, the length of the connecting rope of the pulley block corresponding to at least one of the hooks is adjusted, so that the difference between the vertical height difference of the two hooks and the second standard height difference is less than or equal to a second preset deviation threshold.

[0031] The spatial special-shaped arch rib segment hoisting posture adjustment method provided by the application can realize the hoisting process of arch ribs from gradually lifting to adjusting the hoisting posture to vertical movement, the center of gravity of the arch rib is determined through the three-dimensional model of the arch bridge, the lifting points of the main arch and the auxiliary arch are arranged based on the center of gravity, and the positions of the hooks are determined according to the shortest length of the steel wire rope, the position of the center of gravity and the position of the lifting points, so that the center of the hook is in the same vertical plane as the center of gravity, and the pulley block is on the same plumb line as the center of gravity. The multiple sets of hoisting assemblies arranged in cooperation can ensure that the entire hoisting process is strictly based on the position of the center of gravity, and the arch rib will not move in a turnover manner during the hoisting process, thereby improving the safety of hoisting and posture adjustment. The number of the shackles is changed, the transverse posture of the arch rib along a direction perpendicular to the length direction is detected, so that the transverse posture of the arch rib conforms to the standard transverse posture of the arch rib in the three-dimensional model, and the vertical height difference of the hooks in multiple sets of the hoisting assemblies is adjusted, so that the longitudinal posture of the arch rib conforms to the standard longitudinal posture of the arch rib in the three-dimensional model. Due to the different weights of the main arch and the auxiliary arch, the transverse posture and the longitudinal posture can be stably adjusted in sequence, and the final hoisting state is the optimal state consistent with the state of the arch rib in the completed bridge, which can meet the welding and assembly requirements of the arch rib on the support and facilitate on-site construction.

[0032] In a second aspect, the application further provides a spatial special-shaped arch rib segment hoisting posture adjustment system, which applies the spatial special-shaped arch rib segment hoisting posture adjustment method according to any one of the above aspects, and comprises:

[0033] A lifting point determination module is configured to determine the center of gravity of the arch rib through the three-dimensional model of the arch bridge, and arrange the lifting points of the main arch and the auxiliary arch based on the center of gravity.

[0034] A hook position determination module is configured to determine the position of the hook according to the shortest length of the steel wire rope, the position of the center of gravity and the position of the lifting point, so that the center of the hook is in the same vertical plane as the center of gravity, and the pulley block is on the same plumb line as the center of gravity.

[0035] a steel wire length determining module configured to determine a length of the first steel wire according to a distance between the hook and the lifting point on the main arch, and determine a number of shackles according to a distance between the hook and the lifting point on the secondary arch and a length of the second steel wire, the first steel wire being used to guide installation of the second steel wire, the length of the second steel wire being determined according to the length of the first steel wire, and the number of shackles being used to guide installation of the shackles;

[0036] a transverse posture adjusting module configured to detect a transverse posture of the arch rib along a transverse direction perpendicular to the length direction after the number of shackles is changed, so that the transverse posture of the arch rib conforms to a standard transverse posture of the arch rib in the three-dimensional model;

[0037] a longitudinal posture adjusting module configured to adjust a vertical height difference of the hooks in the plurality of groups of lifting assemblies, so that a longitudinal posture of the arch rib conforms to a standard longitudinal posture of the arch rib in the three-dimensional model.

[0038] The spatial special-shaped arch rib segment lifting posture adjusting system provided by the present application has the same beneficial effects as the spatial special-shaped arch rib segment lifting posture adjusting method provided by the present application, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 a flowchart of a spatial special-shaped arch rib segment lifting posture adjusting method in an embodiment of the present application is shown;

[0040] Figure 2 a front view of a lifted arch rib in a bridge in an embodiment of the present application is shown;

[0041] Figure 3 a side view of a lifted arch rib in a bridge in an embodiment of the present application is shown;

[0042] Figure 4 a software interface for calculating the length and stress of a steel wire in an embodiment of the present application is shown Figure 1 ;

[0043] Figure 5 a software interface for calculating the length and stress of a steel wire in an embodiment of the present application is shown Figure 2 ;

[0044] Figure 6 a front view of a simulation of lifting assembly arrangement in an embodiment of the present application is shown;

[0045] Figure 7 a schematic view of A-A in Figure 6 in an embodiment of the present application is shown;

[0046] Figure 8 shows a schematic view of B-B in Figure 6

[0047] Figure 9 shows a three-dimensional view of a hoisting assembly simulating the whole arch rib in an embodiment of the present application;

[0048] Figure 10 shows a front view of the arch rib in a lying state in an embodiment of the present application;

[0049] Figure 11 shows a side view of the arch rib in a lying state in an embodiment of the present application;

[0050] Figure 12 shows a front view of the arch rib before being hoisted in an embodiment of the present application;

[0051] Figure 13 shows a side view of the arch rib before being hoisted in an embodiment of the present application;

[0052] Figure 14 shows a side view of the arch rib when being hoisted in an embodiment of the present application;

[0053] Figure 15 shows a structural schematic view of an ear in an embodiment of the present application;

[0054] Figure 16 shows a structural schematic view of a bridge in an embodiment of the present application;

[0055] Figure 17 shows a structural view of a spatial special-shaped arch rib segment hoisting posture adjusting system.

[0056] BRIEF DESCRIPTION OF THE DRAWINGS

[0057] 1, main arch; 2, auxiliary arch; 3, inclined rod; 4, first steel wire rope; 5, second steel wire rope; 6, shackle; 7, lifting hook; 8, gravity center; 9, pulley block connecting rope; 10, pulley block; 11, ear; 12, partition plate; 13, arch rib. DETAILED DESCRIPTION

[0058] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0059] ​It should be noted that the relational terms herein such as first and second and the like can be used solely to distinguish one from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0060] In the description of the specification, the description of the terms "embodiment", "one embodiment", and "one implementation" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0061] The Z-axis in the drawings represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis represents the upward direction, and the negative direction of the Z-axis represents the downward direction. The X-axis in the drawings represents the horizontal direction, and is designated as the front-rear position, and the positive direction of the X-axis represents the front side, and the negative direction of the X-axis represents the rear side. The Y-axis in the drawings represents the left-right position, and the positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side. It should be noted that the meanings of the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0062] Referring to Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the present application proposes a spatial special-shaped arch rib segment hoisting posture adjusting method, the arch bridge includes multiple segments of the arch rib 13, the arch rib 13 includes a main arch 1 and a secondary arch 2, the main arch 1 and the secondary arch 2 are connected through a diagonal rod 3, along the length direction of the main arch 1 and the secondary arch 2, the main arch 1 and the secondary arch 2 are provided with multiple groups of hoisting assemblies, the hoisting assembly includes a lifting hook 7, a steel wire rope and a shackle 6, the steel wire rope includes a first steel wire rope 4 and a second steel wire rope 5, the lifting hook 7 and the main arch 1 are connected through the first steel wire rope 4, the lifting hook 7 and the secondary arch 2 are connected through the second steel wire rope 5 and the shackle 6, the lifting hook 7 of multiple groups of hoisting assemblies is respectively connected through a pulley block connecting rope 9 and a pulley block 10, and the shackle 6 is arranged close to the secondary arch 2.

[0063] Specifically, multiple arch ribs 13 (segments) constitute the main part of the arch bridge, that is, the arch, and the hoisting is to place the arch rib 13 in the state (usually flat on the placement point, such as Figure 10 and Figure 11 shown) transported from the factory by the lifting appliance to the support for welding of the arch bridge, and then wait for welding and fixation to form the bridge (such as Figure 16 shown), and the arch rib 13 is in different inclined states in the bridge, so the hoisting needs to achieve the inclined placement from the placement point to the support, and thus the adjustment of the inclined state of the arch rib 13 needs to be achieved in the hoisting process. The main arch 1 and the secondary arch 2 are connected through the diagonal rod 3, and the three constitute the arch rib 13. When the arch rib 13 is hoisted by the hoisting assembly, hoisting points need to be arranged on the main arch 1 and the secondary arch 2. The first steel wire rope 4 and the second steel wire rope 5 are used to connect the arch bridge and the lifting hook 7, and the lifting hook 7 is connected through the pulley block connecting rope 9 and the pulley block 10. Finally, the pulley block 10 is installed on the crossbar of the lifting appliance, and the crossbar can realize the movement in the vertical direction. Therefore, the hoisting process of the arch rib 13 is: gradually hoisting up → adjusting the hoisting posture → vertical movement. The present application mainly improves the adjustment of the hoisting posture adjustment. The hoisting assembly is usually provided with multiple groups, such as two groups, and is symmetrically distributed along the center of gravity 8 in the length direction (X-axis direction), so as to ensure the stable state in the hoisting process, so that the arch rib 13 is stably hoisted up and will not rotate or move due to its own imbalance during the hoisting process.

[0064] The spatial special-shaped arch rib segment hoisting posture adjusting method includes:

[0065] S100: determining the center of gravity 8 of the arch rib 13 through the three-dimensional model of the arch bridge, arranging the hoisting points on the main arch 1 and the secondary arch 2 based on the center of gravity 8, and the three-dimensional model of the arch bridge includes the three-dimensional models of multiple segments of the arch rib 13.

[0066] Specifically, a three-dimensional model of the arch rib 13 is constructed, and then the arch bridge is assembled to obtain a three-dimensional model of the arch bridge. The center of gravity 8 of each arch rib 13 is automatically calculated based on software, such as CAD. The center of gravity 8 is generally close to the main arch 1 because the main arch 1 is heavier. In order to realize stable hoisting, the hoisting assembly is usually provided with multiple groups, such as two groups, and is symmetrically distributed along the center of gravity 8 in the length direction. For each hoisting assembly, at least one hoisting point is provided on the main arch 1 and the auxiliary arch 2, and the hoisting point is used to hoist the arch rib 13.

[0067] S200: determining the position of the hook 7 according to the shortest length of the steel wire rope, the position of the center of gravity 8, and the position of the hoisting point. The center of the hook 7 is in the same vertical plane as the center of gravity 8.

[0068] Specifically, the specifications of the steel wire rope (mainly referring to the diameter for bearing the corresponding tension) can be estimated before hoisting. After obtaining several groups of steel wire ropes, the shortest steel wire rope can be inclined upward based on the shortest steel wire rope, and the top end of the steel wire rope is ensured to be in the same vertical plane as the center of gravity 8 when viewed vertically to the length direction (the width direction of the arch rib 13, i.e., the Y-axis direction). Multiple hooks 7 are respectively connected to the rope 9 and the pulley block 10 through the corresponding pulley block. The pulley block 10 is near the same plumb line as the center of gravity 8 (the plumb line passes through the centers of the two pulley blocks 10). Thus, the hoisting is strictly based on the position of the center of gravity 8, and the arch rib 13 will not be overturned during hoisting.

[0069] S300: determining the length of the first steel wire rope 4 according to the distance between the hook 7 and the hoisting point on the main arch 1, and determining the number of the shackle 6 according to the distance between the hook 7 and the hoisting point on the auxiliary arch 2 and the length of the second steel wire rope 5. The first steel wire rope 4 is used to guide the installation of the second steel wire rope 5. The length of the second steel wire rope 5 is determined according to the length of the first steel wire rope 4, and the number of the shackle 6 guides the installation of the shackle 6.

[0070] Specifically, the first steel wire rope 4 can be directly determined because the center of gravity 8 is close to the main arch 1, so the hook 7 is also close to the main arch 1, and therefore the hook 7 is far away from the auxiliary arch 2, and considering that the auxiliary arch 2 is light in weight, the connection between the hook 7 and the auxiliary arch 2 is set as an adjustable length connection, which is specifically that the hook 7 and the auxiliary arch 2 are connected through the second steel wire rope 5 and the shackle 6, the shackle 6 is an auxiliary hoisting component commonly used in hoisting, and they are connected in series with each other, and the hoisting length is increased or shortened by changing the number of series connection, and the lengths of the first steel wire rope 4 and the second steel wire rope 5 can be set to be equivalent, so that the difference between the distance between the hook 7 and the hoisting point on the auxiliary arch 2 and the length of the second steel wire rope 5 can be determined, and the number of shackles 6 can be obtained by the ratio (integer) of the length difference and the single series length of a single hook 7. Therefore, it can be used to guide the installation of the first steel wire rope 4, the second steel wire rope 5 and the shackle 6 between the hook 7 and the arch rib 13.

[0071] S400: After changing the number of shackles 6, the transverse attitude of the arch rib 13 along the direction perpendicular to the length direction is detected, so that the transverse attitude of the arch rib 13 conforms to the standard transverse attitude of the arch rib 13 in the three-dimensional model.

[0072] Specifically, from the direction perpendicular to the length direction (the width direction of the arch rib 13, the Y-axis direction), the change of the number of shackles 6 will cause the distance between the auxiliary arch 2 and the hook 7 to change, so that the transverse attitude of the arch rib 13 can be changed, and the standard transverse attitude can be that the height difference between the bottom of the main arch 1 and the bottom of the auxiliary arch 2 is small, which is also the transverse attitude of the main arch 1 and the auxiliary arch 2 in the bridge construction.

[0073] S500: By adjusting the vertical height difference between the hooks 7 in multiple groups of hoisting assemblies, the longitudinal attitude of the arch rib 13 conforms to the standard longitudinal attitude of the arch rib 13 in the three-dimensional model.

[0074] Because the weights of the main arch 1 and the auxiliary arch 2 are different, the adjustment of the transverse attitude and the longitudinal attitude is based on the order of easy first and difficult later, which is beneficial to stable hoisting.

[0075] Specifically, in the initial hoisting state, the arch rib 13 is laid flat, and the hooks 7 of multiple groups of hoisting assemblies have no height difference in the vertical direction, and after the transverse attitude is adjusted, the arch rib 13 needs to be changed to an inclined state from the length direction, so that after the transverse attitude is adjusted, the vertical height difference between the hooks 7 can be adjusted to make the arch rib 13 tend to be inclined, and different vertical height differences correspond to different inclination degrees, and the standard longitudinal attitude can be that the hooks 7 have a fixed vertical height difference, and the standard longitudinal attitude can be obtained by adjusting according to the fixed vertical height difference.

[0076] In actual application, the hoisting assembly, the rope 9 connected with the pulley block 10, and the pulley block 10 are arranged to realize the hoisting process of the arch rib 13 from gradually hoisting to adjusting the hoisting posture to vertical movement, the center of gravity 8 of the arch rib 13 is determined according to the three-dimensional model of the arch bridge, the lifting points of the main arch 1 and the auxiliary arch 2 are arranged based on the center of gravity 8, and the position of the lifting hook 7 is determined according to the shortest length of the steel wire rope, the position of the center of gravity 8, and the position of the lifting point, so that the center of the lifting hook 7 is in the same vertical plane as the center of gravity 8, and the pulley block 10 is on the same vertical line as the center of gravity 8. A plurality of hoisting assemblies arranged in cooperation can ensure that the entire hoisting process is strictly based on the position of the center of gravity 8, and the arch rib 13 will not overturn or move during the hoisting process, thereby improving the safety of hoisting and posture adjustment. The number of the shackle 6 is changed to detect the transverse posture of the arch rib 13 along the length direction, so that the transverse posture of the arch rib 13 meets the standard transverse posture of the arch rib 13 in the three-dimensional model, and the vertical height difference of the lifting hook 7 in a plurality of hoisting assemblies is adjusted, so that the longitudinal posture of the arch rib 13 meets the standard longitudinal posture of the arch rib 13 in the three-dimensional model. Due to the different weights of the main arch 1 and the auxiliary arch 2, the transverse posture and the longitudinal posture can be stably adjusted in sequence, and the final hoisting state is the best state consistent with the state of the arch rib 13 in the completed bridge, which can meet the welding and assembly requirements of the arch rib 13 on the support and facilitate on-site construction.

[0077] The present application combines theoretical simulation with on-site application, is simple and efficient to operate, and is easy to implement. The transverse posture and the longitudinal posture of the arch rib 13 can be adjusted, and the construction efficiency on site can be improved.

[0078] After adjusting the longitudinal posture, the posture adjustment results (transverse posture and longitudinal posture) can be measured and reviewed again as a whole. If it is unqualified, fine adjustment can be performed again. The final completed bridge is as shown in Figure 16 , for example, the maximum hoisting section (arch rib 13) is 46.7 m long, 340 t heavy, and the hoisting height is 62 m. The main arch 1 and the auxiliary arch 2 both adopt an octagonal cross section, and the cross section height and the arch axis of the main arch 1 and the auxiliary arch 2 are different.

[0079] As shown in Figure 2 , Figure 3 , Figure 9 and Figure 15 , as an optional embodiment of the present application, the arrangement of the lifting points of the main arch 1 and the auxiliary arch 2 based on the center of gravity 8 includes:

[0080] For multiple groups of the lifting assembly, based on the positions of multiple lifting lugs 11 evenly distributed on the arch rib 13, at least one lifting lug 11 on the main arch 1 and the auxiliary arch 2 on both sides of the gravity center 8 in the length direction is selected as the lifting point.

[0081] Specifically, referring to Figure 9 , the lifting assembly is distributed on both sides of the gravity center 8 along the length direction, and the lifting points are also distributed on both sides of the gravity center 8. The main arch 1 and the auxiliary arch 2 of the arch rib 13 are evenly provided with lifting lugs 11 along the length direction. The Nth lifting lug 11 closest to the gravity center 8 is selected as the lifting lug 11 on the auxiliary arch 2, and the Nth and N+mth lifting lugs 11 closest to the gravity center 8 are selected as the lifting lugs 11 on the main arch 1, where N and m are positive integers. For example, when the lifting assembly is 2 groups, one lifting lug 11 on the auxiliary arch 2 closest to the gravity center 8 and the next 2 lifting lugs 11 on the main arch 1 closest to the gravity center 8 are selected. If the positions of the partitions 12 are used for division, the lifting points of one group of lifting assemblies are respectively located at the position of one lifting lug 11 on the auxiliary arch 2 at the position of the 12th partition 12 on the arch foot side in the C segment of the arch rib 13, and the positions of the next 2 lifting lugs 11 on the main arch 1 at the position of the 6th partition 12 on the arch foot side in the C segment of the arch rib 13. The lifting points of the other group of lifting assemblies are respectively located at the position of one lifting lug 11 on the auxiliary arch 2 at the position of the 10th partition 12 on the arch foot side in the D segment of the arch rib 13, and the positions of the next 2 lifting lugs 11 on the main arch 1 at the position of the 7th partition 12 on the arch foot side in the D segment of the arch rib 13 (the arch rib 13 is sequentially divided into A\B\C\D segments along the length direction).

[0082] In actual application, the lifting lug 11 can be determined by pre-setting (such as symmetrically distributed on both sides of the lifting point), and the position of the lifting point can be modified and supplemented by manual.

[0083] As Figure 4 indicated, after the position of the lifting hook 7 is determined according to the shortest length of the steel wire rope, the position of the gravity center 8, and the position of the lifting point, the method further includes:

[0084] Simulating the force condition of the steel wire rope between the lifting hook 7 and each lifting point, and determining the specifications of the first steel wire rope 4 and the second steel wire rope 5 according to the force condition.

[0085] In actual application, the embodiment can be implemented based on Midas Civil software. After the position of the hook 7 is determined, a direct connection line between the hook 7 and the lifting point is determined, a force action diagram is constructed with the arch rib 13 (in the state of the bridge) and the hook 7, the force condition (of each arch rib 13 in the state of hoisting) is simulated, the gravity and other parameters of the arch rib 13 are known (the self-weight is added), and then the size of the tension of each steel wire rope can be directly calculated according to the force analysis. According to the maximum tension size, the specification of the steel wire rope can be selected. The specification mainly includes the diameter of the steel wire rope. For example, if the tension is converted into a weight of 50t, the diameter of the steel wire rope is determined to be 42-48mm. It should be noted that the rope connection 9 and the pulley set 10 are generally provided by the lifting appliance, and a suitable specification is selected by default.

[0086] In Figure 4 and Figure 5 ( Figure 5 is Figure 4 an analysis note), the force condition (converted into a weight) of the steel wire rope is simulated, and static force analysis can obtain that, for the first steel wire rope 4, the tensions are 58t, 104t and 65t, 68t respectively, for the second steel wire rope 5, the tensions are 42t and 45t respectively, for the second steel wire rope 5 with the tension of 45t, the unit number is 101, the unit length = 8568.1646mm, the included angle [XY, XZ, YZ] with the overall coordinate plane = (44.776, 40.657, 16.368) [unit: degree], the unit weight = 0.279249t, and other related parameters can be referred to Figure 4 and Figure 5 .

[0087] As shown in Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , as an optional embodiment of the present application, the position of the hook 7 is determined according to the shortest length of the steel wire rope, the position of the gravity center 8 and the position of the lifting point, and the center of the hook 7 and the gravity center 8 are in the same vertical plane, which includes:

[0088] Along the length direction, the vertical plane passing through the gravity center 8 is determined.

[0089] Specifically, the vertical plane extends along the straight line where the gravity center 8 is located and along the length direction, which is equivalent to determining the vertical plane by two straight lines (which can be considered to coincide with the X-Z plane).

[0090] With the lifting point on the main arch 1 close to the auxiliary arch 2 as the starting point, the steel wire rope with the shortest installation length is simulated to be inclined along the (first) vertical direction upward, and the terminal point is made to intersect with the vertical plane where the gravity center 8 is located, and the terminal point is taken as the center of the lifting hook 7.

[0091] Specifically, without considering the deviation caused by the connection position, the shortest steel wire rope is taken as the experiment to simulate the installation, the top end of the steel wire rope intersects with the vertical plane, and the bottom end is located at the closest lifting point position on the main arch 1, so it is considered that the closest steel wire rope can play a role to realize the shortest connection from the lifting point to the arch rib 13, and the simulated position of the lifting hook 7 can make the top ends of all the steel wire ropes intersect in the vertical plane, and since the vertical plane is the vertical plane where the vertical line of the gravity center 8 is located, the stable hoisting can be realized through these steel wire ropes.

[0092] In actual application, the position of the lifting hook 7 is inversely deduced through the shortest steel wire rope and the position of the gravity center 8 (after the center of the lifting hook 7 is determined, the position of the lifting hook is adaptively changed with the position of the pulley block 10 being determined), and thus the relative position of the arch rib 13 in actual hoisting can be determined (the lifting hook 7 is released through the pulley block connecting rope 9 and the pulley block 10 to reach the position), and when two sets of hoisting assemblies are arranged, the positions of the two lifting hooks 7 can be considered to be symmetrical in the initial state of hoisting (as shown in Figure 12 ).

[0093] As shown in Figure 8 and Figure 17 , as an optional embodiment of the present application, the number of the shackles 6 is determined according to the distance between the lifting hook 7 and the lifting point on the auxiliary arch 2 and the length of the second steel wire rope 5, which includes:

[0094] The distance between the lifting hook 7 and the lifting point on the auxiliary arch 2 is obtained, and the length difference between the distance between the lifting hook 7 and the lifting point on the auxiliary arch 2 and the length of the second steel wire rope 5 determined is obtained.

[0095] Specifically, after the position of the lifting hook 7 relative to the arch rib 13 is determined, the position of the lifting hook 7 relative to the main arch 1 and the auxiliary arch 2 is also determined, and the lifting points on the main arch 1 and the auxiliary arch 2 are also determined, so the distance between the lifting hook 7 and the lifting point on the auxiliary arch 2 can be directly obtained, and the length of the preselected second steel wire rope 5 is generally close to or the same as the length of the first steel wire rope 4, thereby improving the universality, and the length difference can be directly obtained by subtraction.

[0096] According to the length difference and the length of each single shackle 6 in the series state, the number of the shackles 6 corresponding to each second steel wire rope 5 is determined.

[0097] Specifically, since the shackles 6 are in series, that is, one after another to achieve connection, the length in the connected state is also known, and the difference is divided by the single length of the shackles 6, the number of the shackles 6 corresponding to each section of the second steel wire rope 5 can be determined, and the result is rounded.

[0098] In actual application, for example, the distance between the hook 7 (bottom) and the lifting point on the auxiliary arch 2 is 6 m, the length of the second steel wire rope 5 is 5 m, and the single length of each shackle 6 is 30 cm, so the number of the shackles 6 corresponding to the second steel wire rope 5 is directly determined to be 3 (which can be directly determined by rounding), the embodiment simulates the connection between the hook 7 and the auxiliary arch 2, and reasonably determines the number of the shackles 6 in combination with the length of the second steel wire rope 5 (preferably the same length as the first steel wire rope 4, which can be known through the subsequent, in fact, both can be universal because the bearing tension can also be the same), to ensure that the subsequent transverse attitude can be adjusted by the number of the shackles 6.

[0099] As shown in Figure 13 and Figure 14 as an optional embodiment of the present application, the detection of the transverse attitude of the arch rib 13 along the vertical direction after changing the number of the shackles 6 so that the transverse attitude of the arch rib 13 conforms to the standard transverse attitude of the arch rib 13 in the three-dimensional model comprises:

[0100] real-time acquisition of the first height difference between the bottom of the main arch 1 and the bottom of the auxiliary arch 2 in the second plumb direction.

[0101] Specifically, when measuring the height difference, generally taking the bottom of the main arch 1 or the auxiliary arch 2 as the reference line or reference surface, taking the adjacent bottom edge point of the auxiliary arch 2 or the main arch 1 as the parallel line of the reference line or the parallel surface of the reference surface, and then determining the height difference between the two, in actual application, a prism can be arranged at the bottom of the main arch 1 and the auxiliary arch 2, and then the height difference can be determined by a total station instrument, of course, it can also be measured manually or by other distance measurement methods.

[0102] If the difference between the height difference and the height difference between the bottom of the main arch 1 and the bottom of the auxiliary arch 2 in the (second) plumb direction in the three-dimensional model and the standard height difference is greater than a first preset deviation threshold, the number of the shackles 6 is adjusted so that the difference between the real-time acquired height difference and the standard height difference is less than or equal to the first preset deviation threshold.

[0103] Specifically, the standard height difference represents the state of the bottom of the main arch 1 and the bottom of the secondary arch 2 in the bridge construction. When hoisted onto the support, the arch section needs to be close to this state. By adjusting the number of shackles 6, the height of the secondary arch 2 from the hook 7 is changed, and thus the lateral posture is changed. Therefore, the height difference between the bottom of the main arch 1 and the bottom of the secondary arch 2 in the (second) vertical direction can be changed, so that the height difference approaches the standard height difference, thereby obtaining the standard lateral posture.

[0104] In an optional embodiment, adjusting the number of shackles 6 so that the difference between the real-time height difference and the standard height difference is less than or equal to a first preset deviation threshold includes:

[0105] If the height of the bottom of the main arch 1 is higher than the height of the bottom of the secondary arch 2, the number of shackles 6 is reduced so that the difference between the real-time height difference and the standard height difference is less than or equal to the first preset deviation threshold.

[0106] Specifically, in order to reduce the height difference between the bottoms of the main arch 1 and the secondary arch 2 ( Figure 3 The height of the main arch 1 and the secondary arch 2 is adjusted to be close to or equal to the first preset deviation threshold. When the relative height relationship between the bottom of the main arch 1 and the secondary arch 2 is that the main arch 1 is relatively higher, the number of shackles 6 should be reduced (one by one), which is equivalent to raising the secondary arch 2. During the reduction process, the difference between the height difference and the standard height difference needs to be detected in real time until the difference is less than or equal to the first preset deviation threshold, so that the main arch 1 and the secondary arch 2 are at a similar height and not too far apart. This is also in line with the welding state of the arch bridge.

[0107] If the height of the bottom of the main arch 1 is lower than the height of the bottom of the secondary arch 2, the number of shackles 6 is increased so that the difference between the real-time height difference and the standard height difference is less than or equal to the first preset deviation threshold.

[0108] Specifically, in order to adjust the height difference between the bottom of the main arch 1 and the secondary arch 2 to be close to the first preset deviation threshold, when the relative height relationship between the bottom of the main arch 1 and the secondary arch 2 is that the secondary arch 2 is relatively higher, the number of shackles 6 should be increased (one by one), which is equivalent to lowering the secondary arch 2. During the increase, the difference between the height difference and the standard height difference needs to be detected in real time until the difference is less than or equal to the first preset deviation threshold, so that the main arch 1 and the secondary arch 2 are at a similar height and not too far apart, which is also in line with the welding state of the arch bridge.

[0109] In actual application, the number of the shackles 6 is increased or decreased according to different situations of the main arch 1 and the auxiliary arch 2, so that the main arch 1 and the auxiliary arch 2 are at a position with a relatively same height, which is beneficial to the stable lifting of the arch rib 13. For example, the height difference between the bottom of the main arch 1 and the bottom of the auxiliary arch 2 is required to be within 20 cm in actual application. According to the change of the height difference caused by the increase or decrease of the shackles 6, the increase or decrease of the shackles 6 can be directly performed according to the corresponding relationship, so as to improve the speed of the horizontal attitude adjustment.

[0110] As shown in Figure 7 , Figure 8 and Figure 9 , as an optional embodiment of the present application, the number of the hoisting assemblies of each arch rib 13 is 2, and the number of the hooks 7 is 2.

[0111] Specifically, two groups of hoisting assemblies are used for each arch rib 13, and two hooks 7 are used (correspondingly, two groups of pulley block connecting ropes 9 are provided). One hook 7 is provided for each group of hoisting assemblies. The number of the first steel wires 4 corresponding to each group of hoisting assemblies is at least one section, and is preferably two sections (roots). The number of the second steel wire 5 corresponding to each group of hoisting assemblies can be one section. This is caused by the heavy weight of the main arch 1. Thus, the difference in the tension (internal stress) of each section of the steel wire can be ensured to be not too large. For example, for an arch section of about 300 t, the first steel wire 4 is arranged at an included angle of 21 degrees in the middle, the number of the first steel wire 4 is two roots, the number of the second steel wire 5 is one root, the tension of each section of the steel wire is converted into a weight of about 50 t, and the diameter of each section of the steel wire is determined to be about 42-48 mm. Of course, if the number of the first steel wire 4 is one root, the tension is relatively large. The number of the first steel wire 4 is preferably two or more, which can further improve the stability of hoisting. Figure 2

[0112] As shown in Figure 2 and Figure 12 , as an optional embodiment of the present application, the vertical height difference of the hooks 7 in the plurality of hoisting assemblies is adjusted to make the longitudinal attitude of the arch rib 13 conform to the standard longitudinal attitude of the arch rib 13 in the three-dimensional model, which includes:

[0113] The relative positions of the two hooks 7 in the three-dimensional model along the length direction and the standard height difference in the third plumb direction are determined.

[0114] ​Specifically, along the positive direction of the X axis, the relative (high-low) positions of the two lifting hooks 7 of the lifting assembly in the three-dimensional model are, for example, left high and right low, and the standard height H2 of the two lifting hooks 7 in the third vertical direction is measured (indicated by H2 in the figure). Due to the height difference, the arch rib 13 is kept in a state of being in the bridge, and generally is in an inclined state (such as left high and right low) along the X axis.

[0115] Along the length direction, the length of the pulley block connecting rope 9 corresponding to at least one of the two lifting hooks 7 is adjusted so that the difference between the vertical height difference of the two lifting hooks 7 and the second standard height difference is less than or equal to a second preset deviation threshold.

[0116] Specifically, in the initial state, the two lifting hooks 7 are flush, that is, at the same height (such as Figure 12 As shown, at this time, the position of the left lifting hook 7 is raised, or the position of the right lifting hook 7 is lowered. For example, only the position of the left lifting hook 7 is raised, and the means adopted is to contract the length of the pulley block connecting rope 9 corresponding to the left lifting hook 7 (a displacement sensor can be used). The length of the pulley block connecting rope 9 is contracted by 100 cm, and the position of the lifting hook 7 is changed, and there is a corresponding relationship between the length of the pulley block connecting rope 9 and the change in the position of the lifting hook 7, such as a 2:1 relationship (which changes with different pulley blocks 10). For example, if the standard height difference is 50 cm, the length of the pulley block connecting rope 9 should be contracted by 100 cm. In this way, the difference between the vertical height difference of the two lifting hooks 7 and the second standard height difference is less than or equal to a second preset deviation threshold, and the arch rib 13 is adjusted to a longitudinal inclined state, as shown. Figure 12 If it is left low and right high, the right lifting hook 7 can be contracted, and so on.

[0117] In another embodiment of manual height difference adjustment, the support bracket supporting the arch rib 13 is installed at the required height in advance (so that the actual height difference can be directly observed by the naked eye), and after lifting, the worker on the top of the support bracket calls the crane driver through a intercom to adjust the height difference by individually controlling the lifting of the two lifting hooks 7 of the crane.

[0118] It should be noted that, in view of the safety of the arch segment during lifting and installation, the arch segment needs to be kept at a certain height (such as 500 mm away from the ground) before the longitudinal attitude adjustment is started to avoid hitting the ground, etc.

[0119] The above ensures the rapid and accurate adjustment of the longitudinal attitude, and the adjustment of the lateral attitude is performed after the adjustment of the longitudinal attitude, thereby completing the adjustment of the inclined attitude of the arch segment, facilitating direct lifting onto the support bracket for welding, and ensuring the safety and rationality of the lifting process.

[0120] As shown in Figure 17As shown, in another aspect, the present application also provides a spatially shaped arch rib segment hoisting posture adjustment system 200, which applies the spatially shaped arch rib segment hoisting posture adjustment method as described in the foregoing embodiments, and comprises:

[0121] A hoisting point determination module 210 is configured to determine the center of gravity 8 of the arch rib 13 through the three-dimensional model of the arch bridge, and arrange the hoisting points of the main arch 1 and the secondary arch 2 based on the center of gravity 8;

[0122] A hook position determination module 220 is configured to determine the position of the hook 7 according to the shortest length of the steel wire rope, the position of the center of gravity 8, and the position of the hoisting point, the center of the hook 7 is in the same vertical plane as the center of gravity 8, and the sheave block 10 is on the same vertical line as the center of gravity 8;

[0123] A steel wire rope length determination module 230 is configured to determine the length of the first steel wire rope 4 according to the distance between the hook 7 and the hoisting point on the main arch 1, and determine the number of shackles 6 according to the distance between the hook 7 and the hoisting point on the secondary arch 2 and the length of the second steel wire rope 5, the first steel wire rope 4 is used to guide the installation of the second steel wire rope 5, the length of the second steel wire rope 5 is determined according to the length of the first steel wire rope 4, and the number of shackles 6 is used to guide the installation of the shackles 6;

[0124] A transverse posture adjustment module 240 is configured to detect the transverse posture of the arch rib 13 along the transverse direction perpendicular to the length direction by changing the number of shackles 6, so that the transverse posture of the arch rib 13 conforms to the standard transverse posture of the arch rib 13 in the three-dimensional model;

[0125] A longitudinal posture adjustment module 250 is configured to adjust the vertical height difference of the hooks 7 in multiple groups of hoisting assemblies, so that the longitudinal posture of the arch rib 13 conforms to the standard longitudinal posture of the arch rib 13 in the three-dimensional model.

[0126] The specific embodiments of the present application can refer to the corresponding implementation methods described above, and will not be described here.

[0127] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware. The program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, storage, database or other medium used in the embodiments of the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct RAM bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0128] The above description is merely that of specific embodiments of the present application, to enable a person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Accordingly, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0129] Although the present application is disclosed as above, the scope of protection of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications shall fall within the scope of protection of the present application.

Claims

1. A method for adjusting the hoisting posture of a spatially anisotropic arch-rib segment, characterized in that, The arch bridge comprises a plurality of arch ribs (13), the arch ribs (13) comprising a main arch (1) and a secondary arch (2), the main arch (1) and the secondary arch (2) being connected by diagonal bars (3), a plurality of hoisting assemblies being arranged along the length direction of the main arch (1) and the secondary arch (2), the hoisting assembly comprising a hook (7), a steel wire rope and a shackle (6), the steel wire rope comprising a first steel wire rope (4) and a second steel wire rope (5), the hook (7) and the main arch (1) being connected by the first steel wire rope (4), the hook (7) and the secondary arch (2) being connected by the second steel wire rope (5) and the shackle (6), the hooks (7) of a plurality of hoisting assemblies being connected by a pulley block connecting rope (9) and a pulley block (10) respectively, the shackle (6) being arranged close to the secondary arch (2), the spatial special-shaped arch rib segment hoisting posture adjustment method comprising: The center of gravity (8) of the arch rib (13) is determined by a three-dimensional model of the arch bridge, the lifting points on the main arch (1) and the secondary arch (2) are arranged based on the center of gravity (8), and the three-dimensional model of the arch bridge comprises three-dimensional models of a plurality of arch ribs (13); The position of the hook (7) is determined according to the shortest length of the steel wire rope, the position of the center of gravity (8) and the position of the lifting point, and the center of the hook (7) is in the same vertical plane as the center of gravity (8); The length of the first steel wire rope (4) is determined according to the distance between the hook (7) and the lifting point on the main arch (1), and the number of shackles (6) is determined according to the distance between the hook (7) and the lifting point on the secondary arch (2) and the length of the second steel wire rope (5), the first steel wire rope (4) is used to guide the installation of the second steel wire rope (5), the length of the second steel wire rope (5) is determined according to the length of the first steel wire rope (4), and the number of shackles (6) is used to guide the installation of the shackles (6); The transverse posture of the arch rib (13) along the transverse direction perpendicular to the length direction is detected after the number of shackles (6) is changed, so that the transverse posture of the arch rib (13) conforms to the standard transverse posture of the arch rib (13) in the three-dimensional model; The vertical height difference between the hooks (7) in a plurality of hoisting assemblies is adjusted, so that the longitudinal posture of the arch rib (13) conforms to the standard longitudinal posture of the arch rib (13) in the three-dimensional model.

2. The spatially shaped ribbed segment erection attitude adjustment method according to claim 1, characterized in that, The arrangement of the lifting points on the main arch (1) and the secondary arch (2) based on the center of gravity (8) comprises: For a plurality of hoisting assemblies, at least one lifting lug (11) on the main arch (1) and the secondary arch (2) on both sides of the center of gravity (8) in the length direction is selected as the lifting point based on the positions of a plurality of lifting lugs (11) uniformly distributed on the arch rib (13).

3. The spatially shaped ribbed segment erection attitude adjustment method of claim 1, wherein, The method comprises the following steps: determining the position of the hook (7) according to the shortest length of the steel wire rope, the position of the gravity center (8), and the position of the lifting point, wherein the center of the hook (7) is in the same vertical plane as the gravity center (8); determining the vertical plane passing through the gravity center (8) along the length direction; taking the lifting point on the main arch (1) close to the secondary arch (2) as the starting point, tilting the simulated installation length of the steel wire rope with the shortest length upward along the first plumb direction, and making the end point intersect with the vertical plane where the gravity center (8) is located, and taking the end point as the center of the hook (7).

4. The spatially shaped rib segment hoisting attitude adjustment method of claim 1, wherein, After determining the position of the hook (7) according to the shortest length of the steel wire rope, the position of the gravity center (8), and the position of the lifting point, the method further comprises the following steps: simulating the force condition of the steel wire rope between the hook (7) and each lifting point, and determining the specifications of the first steel wire rope (4) and the second steel wire rope (5) according to the force condition.

5. The spatially shaped rib segment hoisting attitude adjustment method according to any one of claims 1-4, characterized in that, The method comprises the following steps: obtaining the distance between the hook (7) and the lifting point on the secondary arch (2), and determining the length difference between the distance between the hook (7) and the lifting point on the secondary arch (2) and the length of the second steel wire rope (5) determined; determining the number of the shackles (6) corresponding to each segment of the second steel wire rope (5) according to the length difference and the single length of the shackles (6) in the series state.

6. The spatially shaped rib segment hoisting attitude adjustment method according to any one of claims 1-4, characterized in that, The method comprises the following steps: obtaining the first height difference between the bottom of the main arch (1) and the bottom of the secondary arch (2) in the second plumb direction in real time; if the difference between the first height difference and the first standard height difference between the bottom of the main arch (1) and the bottom of the secondary arch (2) in the second plumb direction in the three-dimensional model is greater than a first preset deviation threshold, adjusting the number of the shackles (6) so that the difference between the first height difference obtained in real time and the first standard height difference is less than or equal to the first preset deviation threshold.

7. The spatially shaped ribbed segment erection attitude adjustment method of claim 6, wherein, The method comprises the following steps: if the height of the bottom of the main arch (1) is higher than the height of the bottom of the secondary arch (2), reducing the number of the shackles (6) so that the difference between the first height difference obtained in real time and the first standard height difference is less than or equal to the first preset deviation threshold. If the height of the bottom of the main arch (1) is lower than the height of the bottom of the secondary arch (2), the number of shackles (6) is increased so that the difference between the first height difference obtained in real time and the first standard height difference is less than or equal to the first preset deviation threshold.

8. The spatially shaped rib segment hoisting attitude adjustment method according to any one of claims 1-4, characterized in that, The number of lifting assemblies of each segment of the arch rib (13) is 2, and the number of hooks (7) is also 2.

9. The spatially shaped ribbed segment erection attitude adjustment method of claim 8, wherein, The vertical height difference between the hooks (7) in multiple groups of lifting assemblies is adjusted so that the longitudinal attitude of the arch rib (13) conforms to the standard longitudinal attitude of the arch rib (13) in the three-dimensional model, which includes: Along the length direction, the relative positions of two hooks (7) in the three-dimensional model and a second standard height difference in the third vertical direction are determined; Along the length direction, the length of the pulley block connecting rope (9) corresponding to at least one hook (7) is adjusted so that the vertical height difference between the two hooks (7) and the second standard height difference is less than or equal to a second preset deviation threshold.

10. A spatially shaped ribbed segment hoisting attitude adjustment system, characterized by, The spatial special-shaped arch rib segment lifting attitude adjustment method according to any one of claims 1-9, comprising: A lifting point determination module is configured to determine the center of gravity (8) of the arch rib (13) through a three-dimensional model of the arch bridge, and arrange the lifting points of the main arch (1) and the secondary arch (2) based on the center of gravity (8); A hook position determination module is configured to determine the position of the hook (7) according to the shortest length of the steel wire rope, the position of the center of gravity (8), and the position of the lifting point, the center of the hook (7) and the center of gravity (8) being in the same vertical plane, and the pulley block (10) and the center of gravity (8) being on the same vertical line; A steel wire rope length determination module is configured to determine the length of the first steel wire rope (4) according to the distance between the hook (7) and the lifting point on the main arch (1), and determine the number of shackles (6) according to the distance between the hook (7) and the lifting point on the secondary arch (2) and the length of the second steel wire rope (5), the first steel wire rope (4) being used to guide the installation of the second steel wire rope (5), the length of the second steel wire rope (5) being determined according to the length of the first steel wire rope (4), and the number of shackles (6) being used to guide the installation of the shackles (6); A transverse attitude adjustment module is configured to detect the transverse attitude of the arch rib (13) along a direction perpendicular to the length direction after changing the number of shackles (6) so that the transverse attitude of the arch rib (13) conforms to the standard transverse attitude of the arch rib (13) in the three-dimensional model; A longitudinal attitude adjustment module is configured to adjust the vertical height difference between the hooks (7) in multiple groups of lifting assemblies so that the longitudinal attitude of the arch rib (13) conforms to the standard longitudinal attitude of the arch rib (13) in the three-dimensional model.

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