A segmented hoisting device for a U-shaped steel arch overpass

Abstract

The present invention belongs to the technical field of lifting devices, and specifically is a segmented lifting device for a U-shaped steel arch overpass, comprising a construction column one and a construction column two, a steel arch overpass base is erected between the construction column one and the construction column two, the construction column two and the construction column one are components made of the same structure, a plurality of winding devices are movably installed at the bottom of the construction column two, a rope transmission structure is installed in the top of the construction column two, a first arch steel segment is lifted by a hanging device so that its end close to the ground contacts with a ground building, and then the first arch steel segment is fixed by bolts and welding, and then the next arch steel segment is lifted so that one end is aligned with the fixed previous arch steel segment, and the two are also fixed by bolts and welding, and are hoisted and connected in sequence, and when the arch steel segment is transported, structures for maintaining horizontality are set at both ends of the sling to prevent the arch steel segment from shaking during transportation.

Description

Technical Field

[0001] The invention belongs to the field of hoisting devices, in particular to a segmented hoisting device for a U-shaped steel arch overpass. Background Art

[0002] The steel arch bridge is named after its arch structure. This structure is usually composed of arch ribs to form the main arch, and the building on the arch takes the form of a slanted leg rigid frame, which are connected into a whole. Therefore, it is called a steel frame arch bridge. When installing a steel arch bridge in a busy area, the segmented steel arch bridge base is usually transported to the designated location first, and then the sections of the steel arch bridge base are connected together by hoisting to form a steel arch bridge. After the connection, multiple steel box girders are installed to fill the skeleton of the steel arch bridge.

[0003] A patent document with announcement number CN110396943B discloses a steel arch frame segment movement and hoisting system and method for top-supported arch bridge construction, the system includes a cable crane for hoisting arch frame assembled segments and an arch frame segment transfer device for moving the arch frame assembled segments one by one; the arch frame segment transfer device includes an assembly segment moving device for horizontally moving the arch frame assembled segments one by one and a horizontal movement channel for horizontal movement of the assembly segment moving device, and the horizontal movement channel is arranged on the rear beam segment support structure.

[0004] When installing a steel arch bridge in a busy area, a segmented lifting method is usually adopted to connect the steel arch bridge bases piece by piece to form a steel arch bridge. At this time, a lifting device is needed to cooperate to lift the steel arch bridge base piece by piece. In the traditional technical solution, the steel arch bridge base is lifted by a hook lock, and then the steel arch bridge base is driven to move by a suspended horizontal winding rope to complete the segmented lifting of the steel arch bridge base. However, in the traditional lifting method, when the steel arch bridge base moves, it will cause the rope to shake, which is not conducive to the segmented connection of the steel arch bridge base.

[0005] To this end, the present invention provides a segmented hoisting device for a U-shaped steel arch overpass. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the segmented lifting device of a U-shaped steel arch overpass described in the present invention comprises a construction column 1 and a construction column 2, a steel arch overpass base is erected between the construction column 1 and the construction column 2, the construction column 2 and the construction column 1 are components made of the same structure, a plurality of winding devices are movably installed at the bottom of the construction column 2, a winding rope is surrounded on the outer side of the winding device, one end of the winding rope is located in the top of the construction column 2, a sling is arranged between the heads of the construction column 2 and the construction column 1, one end of the sling is located in the top of the construction column 2, and one end of the sling is connected to the end of the corresponding winding rope;

[0008] A rope transmission structure is installed inside the top of the second construction column, and the sling passes through the rope transmission structure. A hanging device is installed below the sling. The steel arch overpass base includes multiple arch steel sections, and the multiple arch steel sections are connected by bolts. The rope transmission structure is used to transmit the sling.

[0009] Preferably, a plurality of X-shaped reinforcing steel bars are installed inside the arched steel section, a plurality of reinforcing ribs are distributed in an arc shape at the top and bottom of the arched steel section, and hooks are installed on the sides of the plurality of reinforcing ribs.

[0010] Preferably, the hanging device comprises a winding drum installed on the outside of the sling and a hanging rope installed below the winding drum, and a curved hook body is installed below the hanging rope.

[0011] Preferably, the rope transmission structure includes a fixed cylinder installed on the top of the second construction column, and a plurality of fixed motors and conveying wheels are installed inside the fixed cylinder. The fixed motors are connected to the conveying wheels through shafts, and the plurality of fixed motors and conveying wheels are installed around the outside of the sling.

[0012] Preferably, the sling comprises a cable body and a plurality of cable strips fixedly mounted on the outside of the cable body, and the conveying wheel is located between two adjacent cable strips.

[0013] Preferably, an outer wheel body is installed on the outer side of the conveying wheel, beveled grooves are provided on both sides of the outer wheel body, and an arc groove is provided on the outer side of the circumference of the outer wheel body.

[0014] Preferably, a monitoring assembly is installed between two adjacent hanging devices, and connecting ropes are installed on both sides of the monitoring assembly, one end of the connecting rope is connected to the outer side of the corresponding hanging rope. The total length of the two connecting ropes is greater than the distance between the two adjacent hanging devices.

[0015] Preferably, the monitoring assembly comprises a transverse cylinder, both ends of which are connected to the two connecting ropes, and a level detector is installed at the bottom of the transverse cylinder.

[0016] Preferably, a strip-shaped air bag and two micro air pumps are installed above the transverse cylinder, and the two micro air pumps are located at both ends of the strip-shaped air bag.

[0017] Preferably, the buoyancy of the strip-shaped airbag after inflation is greater than the total gravity of the transverse cylinder, the level detector and the two micro air pumps.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The invention discloses a segmented lifting device for a U-shaped steel arch bridge. The first arch steel segment is lifted by a hanging device so that its end close to the ground contacts the ground building. The first arch steel segment is then fixed by bolts and welding. The next arch steel segment is then lifted so that one end is aligned with the fixed previous arch steel segment. The two are also fixed by bolts and welding. The segments are hoisted and connected in sequence. A plurality of arch steel segments form the base of the steel arch bridge, thereby completing the preliminary construction of the steel arch bridge. When the hanging device lifts the arch steel segment, the corresponding two winding devices are wound and unwound to drive the hanging device on the sling to move, that is, drive the arch steel segment to move. The device is provided with a rope transmission structure at the inner top of the second construction column and the first construction column for tightly transmitting the sling. That is, a structure for maintaining horizontality is provided at both ends of the sling to avoid shaking of the arch steel segment during transportation, thereby enhancing the lifting and connection rate of the arch steel segment.

[0020] 2. The present invention describes a U-shaped steel arch bridge segmented lifting device. When the sling is rotated and pulled by the winding device, the rope transmission structure can cooperate. At this time, it is driven by a fixed motor to control the conveying wheel to rotate. The outer side of the circumference of the outer wheel body of the outer side of the multiple conveying wheels, that is, the inner wall of the arc-shaped groove, is in close contact with the outer side of the cable body, and the outer side of the outer wheel body, that is, the position of the bevel groove, is in contact with the side of the corresponding cable strip. Therefore, the outer side of the outer wheel body is in close contact with the space between the corresponding two adjacent cable strips. Therefore, when the sling is pulled, the rotation of the conveying wheel can further drive the sling to be pulled, and the setting of the conveying wheel can provide support for the sling to a certain extent, and cooperate with the winding tension of the winding device to further avoid the shaking of the arch steel section during transportation.

[0021] 3. The U-shaped steel arch overpass segment lifting device described in the present invention has two connecting ropes of the same length. When the hanging device lifts the arch steel segment, the two hanging ropes are straightened. Under the gravity factor of the monitoring component, the two connecting ropes sag. A horizontal sensor or module can be set on the monitoring component to monitor whether the arch steel segment is in a stable state at this time to avoid skew when different groups of arch steel segments are connected. The total length of the two connecting ropes is greater than the distance between two adjacent hanging devices, and the gravity of the monitoring component is much smaller than the gravity of the hook body, so it does not affect the hook locking action of the hook body and the hook ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is an overall stereogram of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the base of the steel arch overpass in the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the construction column 2 in the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the hanging device in the present invention;

[0027] Figure 5 It is a three-dimensional schematic diagram of the rope transmission structure in the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the conveying wheel in the present invention;

[0029] Figure 7 It is a three-dimensional schematic diagram of the monitoring component in the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of the level detector in the present invention.

[0031] In the figure: 1. Construction column one; 2. Construction column two; 3. Winding rope; 4. Winding device; 5. Steel arch overpass base; 51. Arch steel section; 52. Reinforcement ribs; 521. Hook; 53. X-shaped reinforcement steel bar; 6. Suspension cable; 61. Cable body; 62. Cable strip; 7. Suspension device; 71. Winding drum; 72. Hanging rope; 73. Hook body; 8. Rope transmission structure; 81. Fixed cylinder; 82. Fixed motor; 83. Conveying wheel; 831. Outer wheel body; 832. Bevel groove; 833. Arc groove; 9. Monitoring component; 91. Connecting rope; 92. Horizontal cylinder; 93. Level detector; 94. Strip airbag; 95. Micro air pump. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1

[0034] like Figure 1-Figure 3As shown, a U-shaped steel arch overpass segmented lifting device according to an embodiment of the present invention comprises a construction column 1 and a construction column 2, a steel arch overpass base 5 is erected between the construction column 1 and the construction column 2, the construction column 2 2 and the construction column 1 are components made of the same structure, a plurality of winding devices 4 are movably installed at the bottom of the construction column 2, a winding rope 3 is surrounded on the outer side of the winding device 4, one end of the winding rope 3 is located in the top of the construction column 2 2, a sling 6 is arranged between the construction column 2 2 and the head of the construction column 1, one end of the sling 6 is located in the top of the construction column 2 2, and one end of the sling 6 is connected to the end of the corresponding winding rope 3;

[0035] A rope transmission structure 8 is installed inside the top of the construction column 2, and the sling 6 passes through the rope transmission structure 8. A hanging device 7 is installed below the sling 6. The steel arch bridge base 5 includes multiple arch steel sections 51, and the multiple arch steel sections 51 are connected by bolts. The rope transmission structure 8 is used to transmit the sling 6.

[0036] Specifically, when a steel arch overpass needs to be built on a busy road section, a segmented lifting method is generally adopted to reduce the obstruction to traffic. Therefore, the construction column 1 and the construction column 2 are first transported to the two ends of the location where the overpass needs to be built, and then the arch steel segments 51 are lifted and connected one by one through the hanging device 7, thereby completing the installation of the steel arch overpass base 5. First, the first arch steel segment 51 is lifted by the hanging device 7 so that its end close to the ground is in contact with the ground building, and then the first arch steel segment 51 is fixed by bolts and welding, and then the next arch steel segment 51 is lifted so that one end is aligned with the previous arch steel segment 51 that has been fixed. The two are also fixed by bolts and welding, and are lifted and connected in sequence. Multiple arch steel segments 51 are The steel arch bridge base 5 is formed, and the preliminary construction work of the steel arch bridge is completed. When the hanging device 7 lifts the arch steel section 51, the corresponding two winding devices 4 are wound and unwound to drive the hanging device 7 on the sling 6 to move, that is, drive the arch steel section 51 to move. However, in the traditional technology, because the steel arch bridge base 5 has a certain weight, when the arch steel section 51 is transported, the sling 6 will shake, which is not conducive to the movement and alignment of multiple steel arch bridge bases 5. The device is provided with a rope transmission structure 8 on the inner top of the construction column 2 2 and the construction column 1 1, which is used to tightly transmit the sling 6, that is, a horizontal maintenance structure is provided at both ends of the sling 6 to avoid the arch steel section 51 from shaking during transportation, thereby enhancing the lifting and connection rate of the arch steel section 51.

[0037] like Figure 2 and Figure 4 As shown, a plurality of X-shaped reinforcing steel bars 53 are installed inside the arched steel section 51 , a plurality of reinforcing ribs 52 are distributed in an arc shape at the top and bottom of the arched steel section 51 , and hooks 521 are installed on the sides of the plurality of reinforcing ribs 52 .

[0038] The hanging device 7 comprises a winding drum 71 installed on the outside of the sling 6 and a hanging rope 72 installed below the winding drum 71 , and a curved hook body 73 is installed below the hanging rope 72 .

[0039] Specifically, a plurality of X-shaped reinforcing steel bars 53 and reinforcing ribs 52 are arranged inside the arch steel segment 51, which can strengthen the rigidity of the arch steel segment 51. After the base of the overpass is formed by the plurality of arch steel segments 51, the stability is relatively strong. The plurality of reinforcing ribs 52 are installed following the curvature of the arch steel segment 51. Therefore, the inner top of the steel arch overpass base 5 has a plurality of arc-shaped reinforcing ribs 52. Steel box girders can be installed on the plurality of reinforcing ribs 52 to fill the skeleton of the steel arch overpass. A winding structure is arranged inside the winding drum 71, which can control the lifting and lowering of the bent hook body 73. The hook locking effect of the bent hook body 73 and the hook ring 521 is utilized to lift the arch steel segment 51 through the hanging device 7.

[0040] like Figure 5-Figure 6 As shown, the rope transmission structure 8 includes a fixed cylinder 81 installed on the top of the construction column 2, and multiple fixed motors 82 and conveying wheels 83 are installed inside the fixed cylinder 81. The fixed motor 82 is connected to the conveying wheel 83 through an axis, and multiple fixed motors 82 and conveying wheels 83 are installed around the outside of the sling 6.

[0041] The sling 6 includes a cable body 61 and a plurality of cable strips 62 fixedly mounted on the outside of the cable body 61 . The conveying wheel 83 is located between two adjacent cable strips 62 .

[0042] An outer wheel body 831 is installed on the outer side of the conveying wheel 83 . Bevel grooves 832 are formed on both sides of the outer wheel body 831 . An arc groove 833 is formed on the outer side of the circumference of the outer wheel body 831 .

[0043] Specifically, the winding and unwinding of the winding device 4 can pull the sling 6 and thus drive the movement of the hanging device 7 and the arched steel section 51. Because the arched steel section 51 has a certain weight, a certain point of the sling 6 in a horizontal state may be sunken. This sunken place is just above the center of gravity of the arched steel section 51. Therefore, in order to avoid this situation, a rope transmission structure 8 is provided at the inner top of the construction column 2 and the winding device 4. When the winding device 4 rotates to pull the sling 6, the rope transmission structure 8 can cooperate. At this time, it is driven by the fixed motor 82 to control the conveying wheel 83 to rotate. The outer side of the circumference of the outer wheel body 831 on the outer side of the multiple conveying wheels 83, that is, the inner wall of the arc groove 833, is in close contact with the outer side of the cable body 61, and the outer side of the outer wheel body 831, that is, the position of the bevel groove 832, is in contact with the side of the corresponding cable strip 62. Therefore, the outer side of the outer wheel body 831 is in close contact with the space between the corresponding two adjacent cable strips 62. Therefore, when the sling 6 is pulled, the rotation of the conveying wheel 83 can further drive the sling 6 to be pulled, and the setting of the conveying wheel 83 can provide support force for the sling 6 to a certain extent, and cooperate with the winding tension of the winding device 4 to further avoid the shaking of the arched steel section 51 during transportation.

[0044] like Figure 7 As shown, a monitoring assembly 9 is installed between two adjacent hanging devices 7, and connecting ropes 91 are installed on both sides of the monitoring assembly 9, and one end of the connecting rope 91 is connected to the outer side of the corresponding hanging rope 72. The total length of the two connecting ropes 91 is greater than the distance between the two adjacent hanging devices 7.

[0045] Specifically, the two connecting ropes 91 have the same length. When the hanging device 7 lifts the arch steel section 51, the two hanging ropes 72 are straightened. Under the gravity factor of the monitoring component 9, the two connecting ropes 91 sag. A horizontal sensor or module can be set on the monitoring component 9 to monitor whether the arch steel section 51 is in a stable state at this time to avoid the skewness when different groups of arch steel sections 51 are connected. The total length of the two connecting ropes 91 is greater than the distance between two adjacent hanging devices 7, and the gravity of the monitoring component 9 is much smaller than the gravity of the hook body 73, so it does not affect the hooking action of the hook body 73 and the hook ring 521.

[0046] Embodiment 2

[0047] like Figure 7-Figure 8 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: the monitoring assembly 9 includes a transverse cylinder 92, both ends of the transverse cylinder 92 are connected to two connecting ropes 91, and a level detector 93 is installed at the bottom of the transverse cylinder 92.

[0048] A strip-shaped air bag 94 and two micro air pumps 95 are installed above the transverse cylinder 92 . The two micro air pumps 95 are located at both ends of the strip-shaped air bag 94 .

[0049] The buoyancy of the strip-shaped airbag 94 after being inflated is greater than the total gravity of the transverse cylinder 92 , the level detector 93 and the two micro air pumps 95 .

[0050] Specifically, in order to avoid affecting the hook lock operation of the curved hook body 73, the weight of the monitoring component 9 needs to be much smaller than the weight of the curved hook body 73. Therefore, when the hanging device 7 lifts the arch steel section 51, the weight of the monitoring component 9 is used to make the connecting rope 91 droop obliquely. At this time, the level detector 93 can monitor the stability of the arch steel section 51. However, due to the weight of the monitoring component 9 itself, the two connecting ropes 91 may be affected by external factors and appear in different states, thereby affecting the monitoring data of the level detector 93. At this time, two micro air pumps 95 are used to evenly supply air to the interior of the strip airbag 94, so that the strip airbag 94 is evenly deformed and expanded, that is, the lift generated by the strip airbag 94 is greater than the weight of the monitoring component 9, which can drive the monitoring component 9 to rise, thereby making the two connecting ropes 91 obliquely upward. Compared with the drooping state, the connecting rope 91 is straighter at this time. In this way, the stability of the arch steel section 51 can be monitored for the second time, that is, it is not easily affected by external factors.

[0051] Working principle: When a steel arch overpass needs to be built on a busy road section, a segmented lifting method is generally adopted to reduce the obstruction to traffic. Therefore, the construction column 1 and the construction column 2 are first transported to the two ends of the location where the overpass needs to be built, and then the arch steel segments 51 are lifted and connected one by one through the hanging device 7, thereby completing the installation of the steel arch overpass base 5. First, the first arch steel segment 51 is lifted by the hanging device 7 so that its end close to the ground is in contact with the ground building, and then the first arch steel segment 51 is fixed by bolts and welding, and then the next arch steel segment 51 is lifted so that one end is aligned with the previous arch steel segment 51 that has been fixed. The two are also fixed by bolts and welding, and are lifted and connected in sequence. Multiple arch steel segments 51 That is, the steel arch bridge base 5 is formed, and then the preliminary construction work of the steel arch bridge is completed. When the hanging device 7 lifts the arch steel section 51, the corresponding two winding devices 4 are wound and unwound to drive the hanging device 7 on the sling 6 to move, that is, drive the arch steel section 51 to move. However, in the traditional technology, because the steel arch bridge base 5 has a certain weight, when the arch steel section 51 is transported, the sling 6 will shake, which is not conducive to the movement and alignment of multiple steel arch bridge bases 5. The device is provided with a rope transmission structure 8 on the inner top of the construction column 2 2 and the construction column 1 1, which is used to tightly transmit the sling 6, that is, a horizontal maintenance structure is provided at both ends of the sling 6 to avoid the arch steel section 51 from shaking during transportation, thereby enhancing the lifting and connection rate of the arch steel section 51.

[0052] The rotation and unwinding of the winding device 4 can pull the sling 6 and thus drive the movement of the hanging device 7 and the arch steel section 51. Because the arch steel section 51 has a certain weight, a certain point of the sling 6 in a horizontal state may be concave. This concave position is just above the center of gravity of the arch steel section 51. Therefore, in order to avoid this situation, a rope transmission structure 8 is provided at the inner top of the construction column 2 and the winding device 4. When the winding device 4 rotates to pull the sling 6, the rope transmission structure 8 can cooperate. At this time, it is driven by the fixed motor 82 to control the conveying wheel 83 to rotate. The outer circumference of the outer wheel body 831 outside the multiple conveying wheels 83, that is, the inner wall of the arc groove 833, is in close contact with the outer side of the rope body 61, and the outer side of the outer wheel body 831, that is, the position of the bevel groove 832, is in contact with the side of the corresponding rope strip 62. The two connecting ropes 91 are in close contact with each other in space, so when the sling 6 is pulled, the rotation of the conveying wheel 83 can further drive the sling 6 to be pulled, and the setting of the conveying wheel 83 can provide support for the sling 6 to a certain extent, and cooperate with the winding tension of the winding device 4 to further avoid the shaking of the arch steel section 51 during transportation. The two connecting ropes 91 are of the same length. When the hanging device 7 lifts the arch steel section 51, the two hanging ropes 72 are straightened. Under the gravity factor of the monitoring component 9, the two connecting ropes 91 sag. A sensor or module for measuring the level can be set on the monitoring component 9 to monitor whether the arch steel section 51 is in a stable state at this time, so as to avoid the skewness when different groups of arch steel sections 51 are connected. The total length of the two connecting ropes 91 is greater than the distance between the two adjacent hanging devices 7, and the gravity of the monitoring component 9 is much smaller than the gravity of the hook body 73, so it does not affect the hooking action of the hook body 73 and the hook ring 521.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A segmented hoisting device for a U-shaped steel arch overpass, comprising a construction column 1 (1) and a construction column 2 (2), characterized in that: A steel arch bridge base (5) is arranged between the construction column 1 (1) and the construction column 2 (2). The construction column 2 (2) and the construction column 1 (1) are components made of the same structure. A plurality of winding devices (4) are movably installed at the bottom of the construction column 2 (2). A winding rope (3) is wound around the outer side of the winding device (4). One end of the winding rope (3) is located inside the top of the construction column 2 (2). A sling (6) is arranged between the heads of the construction column 2 (2) and the construction column 1 (1). One end of the sling (6) is located inside the top of the construction column 2 (2), and one end of the sling (6) is connected to the end of the corresponding winding rope (3). A rope transmission structure (8) is installed inside the top of the second construction column (2), the sling (6) passes through the rope transmission structure (8), a hanging device (7) is installed below the sling (6), the steel arch overpass base (5) includes a plurality of arch steel sections (51), and the plurality of arch steel sections (51) are connected by bolts, and the rope transmission structure (8) is used to transmit the sling (6).

2. The segmented hoisting device for a U-shaped steel arch overpass according to claim 1 is characterized in that: A plurality of X-shaped reinforcing steel bars (53) are installed inside the arched steel section (51), a plurality of reinforcing ribs (52) are distributed in an arc shape at the top and bottom of the arched steel section (51), and hook rings (521) are installed on the sides of the plurality of reinforcing ribs (52).

3. The segmented hoisting device for a U-shaped steel arch overpass according to claim 1 is characterized in that: The hanging device (7) comprises a winding drum (71) installed outside the sling (6) and a hanging rope (72) installed below the winding drum (71), and a curved hook body (73) is installed below the hanging rope (72).

4. The segmented hoisting device for a U-shaped steel arch overpass according to claim 1 is characterized in that: The rope transmission structure (8) comprises a fixed cylinder (81) installed at the top of the second construction column (2), a plurality of fixed motors (82) and conveying wheels (83) are installed inside the fixed cylinder (81), the fixed motors (82) are connected to the conveying wheels (83) through shafts, and the plurality of fixed motors (82) and conveying wheels (83) are installed around the outside of the sling (6).

5. The segmented hoisting device for a U-shaped steel arch overpass according to claim 4 is characterized in that: The sling (6) comprises a cable body (61) and a plurality of cable strips (62) fixedly mounted on the outside of the cable body (61); the conveying wheel (83) is located between two adjacent cable strips (62).

6. The segmented hoisting device for a U-shaped steel arch overpass according to claim 4 is characterized in that: An outer wheel body (831) is installed on the outer side of the conveying wheel (83), bevel grooves (832) are provided on both sides of the outer wheel body (831), and an arc groove (833) is provided on the outer side of the circumference of the outer wheel body (831).

7. The segmented hoisting device for a U-shaped steel arch overpass according to claim 3 is characterized by: A monitoring assembly (9) is installed between two adjacent hanging devices (7), and connecting ropes (91) are installed on both sides of the monitoring assembly (9), and one end of the connecting rope (91) is connected to the outer side of the corresponding hanging rope (72). The total length of the two connecting ropes (91) is greater than the distance between the two adjacent hanging devices (7).

8. The segmented hoisting device for a U-shaped steel arch overpass according to claim 7 is characterized in that: The monitoring assembly (9) comprises a transverse cylinder (92), both ends of which are connected to the two connecting ropes (91), and a level detector (93) is installed at the bottom of the transverse cylinder (92).

9. The segmented hoisting device for a U-shaped steel arch overpass according to claim 8 is characterized by: A strip-shaped air bag (94) and two micro air pumps (95) are installed above the transverse cylinder (92), and the two micro air pumps (95) are located at both ends of the strip-shaped air bag (94).

10. The segmented hoisting device for a U-shaped steel arch overpass according to claim 9 is characterized in that: The buoyancy of the strip-shaped airbag (94) after being inflated is greater than the total gravity of the transverse cylinder (92), the level detector (93) and the two micro air pumps (95).

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