Bridge hanging basket construction structure

Abstract

The utility model discloses a bridge hanging basket construction structure which comprises a main truss, a main truss walking mechanism, an auxiliary beam walking mechanism, a hanging basket formwork and a main truss protection structure. The main truss comprises cross beams, the cross beams comprise main cross beams and auxiliary cross beams arranged at the two ends of the main cross beams, and the main cross beams and the auxiliary cross beams are detachably connected; the main truss walking mechanism is arranged at the bottom of the main truss and can drive the main truss to walk; the auxiliary cross beam walking mechanism is located below the auxiliary cross beam, and the auxiliary cross beam walking mechanism can support the auxiliary cross beam separated from the main cross beam and drive the auxiliary cross beam separated from the main cross beam to walk; after the main cross beam and the auxiliary cross beam are separated, the main cross beam can pass through the space between stay cables on the two sides of the cable-stayed bridge under the driving of the main truss walking mechanism; the hanging basket template is connected with the auxiliary cross beam through a suspension structure; the primary truss protection structure comprises a primary anti-falling net mounting block and a primary anti-falling net. And on the premise of ensuring safety, the labor intensity of workers is reduced, and the construction progress is accelerated.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction auxiliary equipment, in particular to a bridge hanging basket construction structure. Background Art

[0002] The hanging basket is the core equipment for the segmented construction of prestressed concrete continuous beams, T-shaped steel structures and cantilever beams, and it needs to be dismantled after the bridge is closed. For cable-stayed bridges across highways, after the middle of the bridge is closed, it is difficult to close the highway below the bridge, and the construction team cannot directly set up lifting equipment on the highway to dismantle the hanging basket device. Therefore, the hanging basket needs to be retreated to both ends of the bridge for dismantling. However, since the hanging basket beam is too long, it will inevitably be blocked by the bridge's inclined cables during the process of retreating to both ends of the bridge. Although direct destructive dismantling of the hanging basket can circumvent the obstruction of the inclined cables, this will affect the reuse of the hanging basket, increase the labor intensity of workers, and have a negative impact on the construction progress.

[0003] Given the high-altitude nature of hanging basket construction, the installation of anti-fall nets is essential to ensure the safety of construction workers. However, materials and tools that fall during construction may damage the net surface. If it is not replaced in time, the net surface may break when it carries falling objects again, causing safety hazards. Therefore, it is crucial to replace the anti-fall net in a timely manner. At present, most construction teams tie the anti-fall net directly to the scaffolding on the outside of the bridge. The installation and disassembly process is cumbersome, which will also increase the labor intensity of workers and affect the construction progress. Summary of the invention

[0004] The utility model provides a bridge hanging basket construction structure, which can reduce the labor intensity of workers and speed up the construction progress under the premise of ensuring safety.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A bridge hanging basket construction structure, comprising: a main truss, a main truss walking mechanism, a secondary crossbeam walking mechanism, a hanging basket template and a main truss protective structure;

[0007] The main truss includes a crossbeam, and the crossbeam includes a main crossbeam and secondary crossbeams arranged at both ends of the main crossbeam, and the main crossbeam and the secondary crossbeam are detachably connected;

[0008] The main truss walking mechanism is arranged at the bottom of the main truss, and the main truss walking mechanism can drive the main truss to walk;

[0009] The secondary crossbeam walking mechanism is located below the secondary crossbeam, and the secondary crossbeam walking mechanism can support the secondary crossbeam separated from the main crossbeam, and drive the secondary crossbeam separated from the main crossbeam to walk;

[0010] After the main crossbeam is separated from the auxiliary crossbeam, the main crossbeam can pass between the inclined cables on both sides of the cable-stayed bridge under the drive of the main truss traveling mechanism, and the auxiliary crossbeam can pass outside the inclined cables on both sides of the cable-stayed bridge under the drive of the auxiliary crossbeam traveling mechanism;

[0011] The hanging basket template is connected to the auxiliary crossbeam via a suspension structure;

[0012] The main truss protection structure comprises a primary anti-falling net installation block and a primary anti-falling net, wherein the primary anti-falling net installation block can be hung on the secondary crossbeam through an eye hook, and a slide groove is provided on the primary anti-falling net installation block;

[0013] One end of the first-level anti-falling net is provided with a sliding rod which can be inserted into the sliding groove, and the other end of the first-level anti-falling net can be hung on the hanging basket template through an eye hook.

[0014] Furthermore, the auxiliary crossbeam walking mechanism includes a track pad beam, an auxiliary rail, a wheel frame, a jacking device, a push rod and a mechanical gripper;

[0015] The track pad beam is arranged on the bridge deck of the cable-stayed bridge, the auxiliary rail is arranged on the track pad beam, the wheel frame is equipped with wheels, the pushing device is installed on the auxiliary rail, the pushing device can push the wheel frame to make the wheel slide along the auxiliary rail, one end of the push rod is fixed to the top of the wheel frame, and the other end of the push rod is fixedly connected to a mechanical gripper, and the mechanical gripper can clamp the auxiliary crossbeam.

[0016] Furthermore, the auxiliary crossbeam walking mechanism also includes a limiting push rod, which is obliquely arranged on the top of the wheel frame. After the piston rod of the limiting push rod is extended, it can abut against the clamping claw of the mechanical gripper to prevent the mechanical gripper from releasing the auxiliary crossbeam.

[0017] Furthermore, it also includes a crossbeam limiting bolt, the end of the secondary crossbeam is provided with a plurality of protrusions, the end of the main crossbeam is provided with a plurality of grooves corresponding to the protrusions, bolt holes are provided on both sides of the grooves and on the protrusions, when the protrusions are inserted into the grooves, the crossbeam limiting bolts can pass through the bolt holes on both sides of the grooves and on the protrusions, preventing the secondary crossbeam and the main crossbeam from separating.

[0018] Furthermore, the main truss protection structure also includes a transition net and a secondary anti-falling net, and the secondary anti-falling net is located below the primary anti-falling net;

[0019] One end of the secondary anti-falling net can be hung on the hanging basket template through an eye hook, and the other end of the secondary anti-falling net is provided with a transition net mounting block, and the transition net mounting block is provided with a transition net slide groove;

[0020] One end of the transition net can be hung on the primary anti-fall net through an eye hook, and the other end of the transition net is provided with a transition net slide bar which can be inserted into the transition net slide groove.

[0021] Furthermore, it also includes a bottom walking channel, which is arranged at the bottom of the hanging basket template. The bottom walking channel is a three-sided surrounding structure, and the three-sided surrounding structure is open to a side away from the closing position of the cable-stayed bridge.

[0022] Furthermore, it also includes a bottom walking channel protection net, which includes a frame and a protective soft net tied to the frame, and the frame is hung on the bottom walking channel through eye hooks.

[0023] Furthermore, the suspension structure includes a steel sling, one end of which is fixed to the hanging basket template, and the other end of which is fixed to the secondary crossbeam.

[0024] Beneficial effects:

[0025] The utility model provides a bridge hanging basket construction structure, which can separate the crossbeam by dividing it into a main crossbeam and a secondary crossbeam that can be detachably connected, and at the same time, by setting a main truss walking mechanism and a secondary crossbeam walking mechanism, the separated main crossbeam and the secondary crossbeam can be retreated respectively, so that the inclined cable can pass through the separation point of the main crossbeam and the secondary crossbeam, and no longer block the crossbeam, so that the hanging basket can smoothly retreat to the two ends of the bridge for disassembly, and the retreat operation can be completed without destroying the hanging basket structure, thereby reducing the labor intensity of workers and improving the construction efficiency.

[0026] Compared with the commonly used fixing form of directly tying the anti-fall net to the scaffolding on the outside of the bridge, the main truss protection structure is set to be easy to disassemble and assemble, so that it can be easily replaced after the net surface is damaged, thereby reducing the labor intensity of construction workers and improving construction efficiency. At the same time, since it is directly installed on the main truss and the hanging basket formwork, the main truss protection structure can move with the secondary beam and the hanging basket formwork. Construction workers do not need to continue to set up the anti-fall net as the hanging basket structure moves forward, further reducing the labor intensity of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1It is a cross-sectional schematic diagram of a bridge hanging basket construction structure disclosed in the utility model without the bottom walking passage;

[0029] Figure 2 A schematic top view of a bridge hanging basket construction structure disclosed in the utility model without a bottom walking passage;

[0030] Figure 3 It is a cross-sectional schematic diagram of a bridge hanging basket construction structure disclosed in the utility model;

[0031] Figure 4 It is a side view schematic diagram of a bridge hanging basket construction structure disclosed by the utility model;

[0032] Figure 5 It is a schematic diagram of the connection between the main crossbeam and the secondary crossbeam of a bridge hanging basket construction structure disclosed by the utility model;

[0033] Figure 6 A schematic top view of a bottom walking channel protection net of a bridge hanging basket construction structure disclosed in the utility model;

[0034] Figure 7 It is a schematic diagram of the coordination of the skeleton and the soft protective net of the bottom walking channel protective net of a bridge hanging basket construction structure disclosed by the utility model;

[0035] Figure 8 A schematic diagram of a secondary crossbeam walking mechanism of a bridge hanging basket construction structure disclosed in the utility model Figure 1 ;

[0036] Fig. 9 A schematic diagram of a secondary crossbeam walking mechanism of a bridge hanging basket construction structure disclosed in the utility model Figure 2 ;

[0037] Fig.10 It is a schematic diagram of a primary anti-falling net installation block of a bridge hanging basket construction structure disclosed by the utility model;

[0038] Fig.11 A schematic diagram of a primary anti-falling net of a bridge hanging basket construction structure disclosed in the utility model;

[0039] Fig.12 A schematic diagram of a transition net of a bridge hanging basket construction structure disclosed in the utility model;

[0040] Fig.13 A schematic diagram of a secondary anti-falling net of a bridge hanging basket construction structure disclosed in the utility model;

[0041] Fig.14 A schematic diagram of a ring eye hook of a bridge hanging basket construction structure disclosed in the utility model;

[0042] Fig.15 It is a schematic diagram of a bridge hanging basket construction structure disclosed in the utility model moving forward on a cable-stayed bridge;

[0043] Fig.16 It is a schematic diagram of a bridge hanging basket construction structure disclosed in the utility model being closed on a cable-stayed bridge;

[0044] Fig.17 The utility model discloses a schematic diagram of a bridge hanging basket construction structure retreating on a cable-stayed bridge.

[0045] In the figure:

[0046] 1. Main truss;

[0047] 2. Main beam; 201. Groove;

[0048] 3. Secondary beam; 301. Protrusion;

[0049] 4. Track beam;

[0050] 5. Auxiliary track;

[0051] 6. Wheel frame;

[0052] 7. Pushing device;

[0053] 8. Putting;

[0054] 9. Mechanical gripper;

[0055] 10. Wheels;

[0056] 11. Push rod for limit position;

[0057] 12. Beam limit bolts;

[0058] 13. First-level anti-fall net installation block; 1301. Slideway;

[0059] 14. Level 1 anti-fall net; 1401. Sliding bar;

[0060] 15. Transition net; 1501. Transition net slide bar;

[0061] 16. Secondary anti-fall net;

[0062] 17. Eye hook;

[0063] 18. Transition net installation block; 1801. Transition net chute;

[0064] 19. Bottom walking passage;

[0065] 20. Bottom walking channel protection net; 2001. Frame; 2002. Protective soft net;

[0066] 21. Steel sling;

[0067] 22. Side formwork;

[0068] 23. Bottom template;

[0069] 24. Main track;

[0070] 25. Strengthen the ribs;

[0071] A. Stay cable; B. Closing point; C. Bridge deck; D. Highway. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0073] Example 1

[0074] This embodiment provides a bridge hanging basket construction structure, including: a main truss 1, a main truss walking mechanism, a secondary crossbeam walking mechanism, a hanging basket template and a main truss protection structure;

[0075] like Figures 1 to 3 As shown, the main truss 1 includes a crossbeam, and the crossbeam includes a main crossbeam 2 and secondary crossbeams 3 arranged at both ends of the main crossbeam 2, and the main crossbeam 2 and the secondary crossbeam 3 are detachably connected;

[0076] The main truss walking mechanism is arranged at the bottom of the main truss 1, and the main truss walking mechanism can drive the main truss 1 to walk. The main truss walking mechanism can adopt the structure in the prior art. Except for the crossbeam part, the main truss 1 can adopt the structure in the prior art, and the specific structure will not be repeated;

[0077] The secondary crossbeam walking mechanism is located below the secondary crossbeam 3, and the secondary crossbeam walking mechanism can support the secondary crossbeam 3 separated from the main crossbeam 2, and drive the secondary crossbeam 3 separated from the main crossbeam 2 to walk;

[0078] After the main crossbeam 2 and the secondary crossbeam 3 are separated, the main crossbeam 2 can pass between the inclined cables A on both sides of the cable-stayed bridge under the drive of the main truss traveling mechanism, and the secondary crossbeam 3 can pass outside the inclined cables A on both sides of the cable-stayed bridge under the drive of the secondary crossbeam traveling mechanism;

[0079] The hanging basket template is connected to the secondary crossbeam 3 via a suspension structure. In this embodiment, Figures 1 to 3As shown, the hanging basket template includes a bottom template 23 and a side template 22, and the two side templates 22 are respectively fixed on both sides of the bottom template 23;

[0080] like Figure 1 , Figure 3 and Figure 4 As shown, the main truss protection structure includes a primary anti-falling net installation block 13 and a primary anti-falling net 14, as shown in FIG. Fig.10 As shown, the primary anti-falling net mounting block 13 can be hung on the steel structure of the secondary crossbeam 3 through the eye hook 17, and the primary anti-falling net mounting block 13 is provided with a slide groove 1301. In this embodiment, the eye hook 17 is welded and fixed to the primary anti-falling net mounting block 13, and the primary anti-falling net mounting block 13 is provided with two rows of eye hooks 17 to ensure that the primary anti-falling net mounting block 13 can be stably installed on the secondary crossbeam 3;

[0081] like Fig.11 As shown, one end of the first-level anti-falling net 14 is welded with a slide bar 1401 that can be inserted into the slide groove 1301, and the other end of the first-level anti-falling net 14 is welded with a slide bar 1401 that can be inserted into the slide groove 1301. Fig.14 The eye hook 17 shown, the primary anti-fall net 14 is hung on the steel structure of the hanging basket template through the eye hook 17;

[0082] The construction personnel insert the slide bar 1401 into the slide groove 1301, and hang the eye hook 17 of the primary anti-falling net 14 on the steel structure of the hanging basket template to achieve the installation of the primary anti-falling net 14;

[0083] Compared with the existing hanging basket with an integrated crossbeam structure, the present embodiment provides a bridge hanging basket construction structure, which can separate the crossbeam by dividing it into a main crossbeam 2 and a secondary crossbeam 3 that can be detachably connected, and at the same time, by setting a main truss walking mechanism and a secondary crossbeam walking mechanism, the separated main crossbeam 2 and secondary crossbeam 3 can be respectively retreated, so that the inclined cable A can pass through the separation point between the main crossbeam 2 and the secondary crossbeam 3, and no longer block the crossbeam, so that the hanging basket can smoothly retreat to the two ends of the bridge for disassembly, avoiding the following Figures 15 to 17 The normal use of the highway D under the cable-stayed bridge shown in the figure is affected. The backing operation can be completed without destroying the hanging basket structure, which reduces the labor intensity of the workers and improves the construction efficiency. At the same time, the hanging basket structure can be reused, which greatly reduces the construction cost.

[0084] Compared with the commonly used fixing form of directly tying the anti-fall net to the scaffolding on the outside of the bridge, the main truss protection structure is set to be easy to disassemble and assemble, so that it can be easily replaced after the net surface is damaged, thereby reducing the labor intensity of construction workers and improving construction efficiency. At the same time, since the main truss protection structure is directly installed on the main truss 1 and the hanging basket formwork, it can move with the secondary crossbeam 3 and the hanging basket formwork. Construction workers do not need to continue to set up the anti-fall net as the hanging basket structure moves forward, further reducing the labor intensity of construction workers.

[0085] In a specific embodiment, Figure 8 and Fig. 9 As shown, the auxiliary crossbeam walking mechanism includes a track cushion beam 4, an auxiliary rail 5, a wheel frame 6, a jacking device 7, a push rod 8 and a mechanical gripper 9;

[0086] The track cushion beam 4 is arranged as follows Figures 1 to 3 On the bridge deck C of the cable-stayed bridge shown in the figure, the auxiliary rail 5 is arranged on the track cushion beam 4, the wheel frame 6 is rotatably connected with a wheel axle, the wheel axle is mounted with a wheel 10, the pushing device 7 is mounted on the auxiliary rail 5, the pushing device 7 can push the wheel frame 6 to make the wheel 10 slide along the auxiliary rail 5, one end of the push rod 8 is fixed to the top of the wheel frame 6, and the other end of the push rod 8 is fixedly connected to a mechanical gripper 9, and the mechanical gripper 9 can clamp the auxiliary cross beam 3. In this embodiment, as shown in FIG. Figure 8 As shown, after the mechanical gripper 9 clamps the secondary crossbeam 3, the end of the clamping claw can be pressed on the top surface of the secondary crossbeam 3 to prevent the secondary crossbeam 3 from falling off the mechanical gripper 9;

[0087] In this embodiment, if Figure 2 As shown, the auxiliary rail 5 is parallel to the main rail 24 of the main truss walking mechanism, ensuring that when retreating, the main truss 1 and the separated auxiliary crossbeam 3 move in the same direction without interference;

[0088] In this embodiment, the push rod 8 is an electric push rod. Figure 8 and Fig. 9 As shown, a reinforcing rib 25 is welded on the top of the wheel frame 6, and the reinforcing rib 25 abuts against the outer periphery of the push rod 8 to prevent the push rod 8 from tipping over.

[0089] In a specific embodiment, Figure 8 As shown, the secondary crossbeam walking mechanism further includes a limiting push rod 11, which is tiltedly arranged on the top of the wheel frame 6. After the piston rod of the limiting push rod 11 is extended, it can abut against the clamping claw of the mechanical gripper 9 to prevent the mechanical gripper 9 from releasing the secondary crossbeam 3. The limiting push rod 11 effectively improves the reliability of the secondary crossbeam walking mechanism;

[0090] In this embodiment, the limit push rod 11 is an electric push rod. After the mechanical gripper 9 clamps the secondary crossbeam 3, the piston rod of the limit push rod 11 is extended to abut against the claws of the mechanical gripper 9, ensuring that the mechanical gripper 9 is stable and reliable in the clamped state, preventing the claws from opening accidentally, thereby avoiding the secondary crossbeam 3 from falling off and causing a safety accident.

[0091] In a specific embodiment, Figure 5 As shown, it also includes a beam limiting bolt 12, the end of the secondary beam 3 is provided with a plurality of protrusions 301, the end of the main beam 2 is provided with a plurality of grooves 201 corresponding to the protrusions 301, and bolt holes are provided on both sides of the groove 201 and the protrusions 301. When the protrusions 301 are inserted into the grooves 201, the beam limiting bolt 12 can penetrate the bolt holes provided on both sides of the groove 201 and the protrusions 301, thereby preventing the secondary beam 3 and the main beam 2 from separating, so that the secondary beam 3 and the main beam 2 are reliably connected;

[0092] In this embodiment, the beam limiting bolt 12 passes through the two sides of the groove 201 and the bolt holes provided on the protrusion 301 and is then engaged with the nut.

[0093] In a specific embodiment, Figure 1 , Figure 3 and Figure 4 As shown, the main truss protection structure also includes a transition net 15 and a secondary anti-falling net 16, and the secondary anti-falling net 16 is located below the primary anti-falling net 14. Fig.13 As shown, a ring eye hook 17 is welded at one end of the secondary anti-falling net 16, and the secondary anti-falling net 16 is hung on the steel structure of the hanging basket template through the ring eye hook 17. A transition net mounting block 18 is welded at the other end of the secondary anti-falling net 16, and a transition net chute 1801 is provided on the transition net mounting block 18;

[0094] like Fig.12 As shown, a ring eye hook 17 is welded at one end of the transition net 15, and the transition net 15 is hung on the primary anti-fall net 14 through the ring eye hook 17. A transition net slide bar 1501 that can be inserted into the transition net slide slot 1801 is welded at the other end of the transition net 15;

[0095] The construction personnel insert the transition net slide bar 1501 into the transition net slide slot 1801, and hang the eye hook 17 of the transition net 15 on the primary anti-falling net 14, and hang the eye hook 17 of the secondary anti-falling net 16 on the steel structure of the hanging basket template to achieve the installation of the transition net 15 and the secondary anti-falling net 16;

[0096] During actual use, the mesh openings of the transition net 15 and the secondary anti-falling net 16 should be smaller than those of the primary anti-falling net 14 to provide multiple protections for construction workers, construction materials, and construction tools during the construction process of the hanging basket structure, ensure the safety of construction workers, and avoid the negative impact on the normal operation of the road D under the cable-stayed bridge caused by the accidental falling of various tools and construction materials during the construction process.

[0097] In a specific embodiment, as Figure 3 shown, it further includes a bottom walking passage 19. The bottom walking passage 19 is arranged at the bottom of the hanging basket formwork. The bottom walking passage 19 is a three-sided surrounding structure. The three-sided surrounding structure is open on one side facing away from the合拢处B of the cable-stayed bridge as shown in Fig.16 and Fig.17 shown. The bottom walking passage 19 facilitates the operations of construction workers such as installing suspension structures and disassembling and maintaining formwork structures;

[0098] In actual application, the bottom walking passage 19 can be an independent component and be directly welded and fixed on the hanging basket formwork; it can also be formed by welding guardrails on the outer periphery of the steel structure extending from the bottom formwork 23 and the side formwork 22 to form the bottom walking passage 19.

[0099] In a specific embodiment, as Figure 3 and Figure 6 shown, it further includes a bottom walking passage protection net 20. As shown in Figure 7 shown, the bottom walking passage protection net 20 includes a skeleton 2001 and a protective soft net 2002 tied to the skeleton 2001. The skeleton 2001 is hung on the bottom walking passage 19 through a steel wire rope with loop hooks 17 fixed at both ends, which facilitates the installation and replacement of the bottom walking passage protection net 20;

[0100] By setting the "匚"-shaped bottom walking passage protection net 20 as shown in Figure 6 shown, it effectively prevents the fall of construction workers on the bottom walking passage 19 of the three-sided surrounding structure and the safety problems caused by the accidental dropping of construction tools or construction materials;

[0101] The skeleton 2001 is a welded steel bar skeleton. In actual use, the primary anti-falling net 14, the transition net 15, and the secondary anti-falling net 16 can all be composed of a steel bar skeleton and a protective soft net.

[0102] In a specific embodiment, as Figure 1 and Figure 3 It should be noted that the term "合拢处B" in the original text seems to be a specific term in Chinese for a certain location on the cable-stayed bridge, but there is no exact corresponding English expression. It is directly translated as "合拢处B" here. If there is a more accurate English term for this location, it can be adjusted accordingly.As shown, the suspension structure includes a steel sling 21, one end of the steel sling 21 is fixed to the hanging basket formwork, and the other end of the steel sling 21 is fixed to the secondary crossbeam 3. In the present embodiment, hooks are provided at both ends of the steel sling 21, and the steel sling 21 is hung on the secondary crossbeam 3 and the steel structure of the hanging basket formwork through the hooks. A plurality of steel slings 21 are provided between the secondary crossbeam 3 and the hanging basket formwork to ensure that the hanging basket formwork can be stably connected to the secondary crossbeam 3, and move forward and backward with the secondary crossbeam 3.

[0103] Example 2

[0104] This embodiment provides a construction method of a bridge hanging basket construction structure, including a bridge hanging basket construction structure described in Example 1. The construction methods of the hanging basket structure moving forward and closing are all existing technologies. It is only necessary to ensure that the main crossbeam 2 and the secondary crossbeam 3 are not separated during the construction process of the hanging basket structure moving forward and closing. No further details will be given. The following introduces the construction method of the hanging basket structure retreating, including the following steps:

[0105] S1: After the cable-stayed bridge is closed, the auxiliary beam walking mechanism is moved to the position directly below the auxiliary beam 3. Specifically, the wheel frame 6 is pushed forward by the jacking device 7 so that the mechanical gripper 9 is located directly below the auxiliary beam;

[0106] S2: The hoisting equipment hoists the secondary crossbeam 3, and the construction personnel dismantle the connection between the main crossbeam 2 and the secondary crossbeam 3, remove the crossbeam limit bolts 12 to complete the dismantling, and then the hoisting equipment moves the secondary crossbeam 3 horizontally to separate the secondary crossbeam 3 from the main crossbeam 2;

[0107] S3: The push rod 8 of the auxiliary beam walking mechanism extends, driving the mechanical gripper 9 in the open state to rise and abut against the bottom of the auxiliary beam 3, and then the claws of the mechanical gripper 9 close to clamp the auxiliary beam 3, the main truss walking mechanism drives the main truss 1 to retreat from the middle of the cable-stayed bridge to both ends of the cable-stayed bridge, and the auxiliary beam walking mechanism drives the auxiliary beam 3 separated from the main beam 2 to retreat from the middle of the cable-stayed bridge to both ends of the cable-stayed bridge.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A bridge hanging basket construction structure, characterized in that: include: Main truss (1), main truss walking mechanism, auxiliary crossbeam walking mechanism, hanging basket template and main truss protection structure; The main truss (1) comprises a crossbeam, wherein the crossbeam comprises a main crossbeam (2) and secondary crossbeams (3) arranged at both ends of the main crossbeam (2), and the main crossbeam (2) and the secondary crossbeam (3) are detachably connected; The main truss walking mechanism is arranged at the bottom of the main truss (1), and the main truss walking mechanism can drive the main truss (1) to walk; The secondary crossbeam walking mechanism is located below the secondary crossbeam (3), and the secondary crossbeam walking mechanism is capable of supporting the secondary crossbeam (3) after being separated from the main crossbeam (2), and driving the secondary crossbeam (3) to walk after being separated from the main crossbeam (2); After the main crossbeam (2) and the secondary crossbeam (3) are separated, the main crossbeam (2) can pass between the inclined cables (A) on both sides of the cable-stayed bridge under the drive of the main truss walking mechanism, and the secondary crossbeam (3) can pass outside the inclined cables (A) on both sides of the cable-stayed bridge under the drive of the secondary crossbeam walking mechanism; The hanging basket template is connected to the secondary crossbeam (3) via a suspension structure; The main truss protection structure comprises a primary anti-falling net installation block (13) and a primary anti-falling net (14); the primary anti-falling net installation block (13) can be hung on the secondary crossbeam (3) through an eye hook (17); and a slide groove (1301) is provided on the primary anti-falling net installation block (13); One end of the first-level anti-falling net (14) is provided with a slide bar (1401) which can be inserted into the slide groove (1301), and the other end of the first-level anti-falling net (14) can be hung on the hanging basket template through an eye hook (17).

2. A bridge hanging basket construction structure according to claim 1, characterized in that: The auxiliary crossbeam walking mechanism comprises a track cushion beam (4), an auxiliary rail (5), a wheel frame (6), a pushing device (7), a push rod (8) and a mechanical gripper (9); The track pad beam (4) is arranged on the deck of the cable-stayed bridge, the auxiliary rail (5) is arranged on the track pad beam (4), the wheel frame (6) is equipped with a wheel (10), the pushing device (7) is installed on the auxiliary rail (5), the pushing device (7) can push the wheel frame (6) to make the wheel (10) slide along the auxiliary rail (5), one end of the push rod (8) is fixed to the top of the wheel frame (6), and the other end of the push rod (8) is fixedly connected to a mechanical gripper (9), and the mechanical gripper (9) can clamp the auxiliary cross beam (3).

3. A bridge hanging basket construction structure according to claim 2, characterized in that: The auxiliary crossbeam walking mechanism also includes a limit push rod (11), which is obliquely arranged on the top of the wheel frame (6). After the piston rod of the limit push rod (11) is extended, it can abut against the clamping claw of the mechanical gripper (9) to prevent the mechanical gripper (9) from releasing the auxiliary crossbeam (3).

4. The bridge hanging basket construction structure according to claim 1 is characterized in that: It also includes a beam limiting bolt (12), the end of the secondary beam (3) is provided with a plurality of protrusions (301), the end of the main beam (2) is provided with a plurality of grooves (201) corresponding to the protrusions (301), and bolt holes are provided on both sides of the groove (201) and on the protrusions (301). When the protrusions (301) are inserted into the grooves (201), the beam limiting bolts (12) can pass through the bolt holes provided on both sides of the grooves (201) and on the protrusions (301), thereby preventing the secondary beam (3) and the main beam (2) from separating.

5. The bridge hanging basket construction structure according to claim 1 is characterized in that: The main truss protection structure further comprises a transition net (15) and a secondary anti-falling net (16), wherein the secondary anti-falling net (16) is located below the primary anti-falling net (14); One end of the secondary anti-falling net (16) can be hung on the hanging basket template through an eye hook (17), and the other end of the secondary anti-falling net (16) is provided with a transition net mounting block (18), and the transition net mounting block (18) is provided with a transition net chute (1801); One end of the transition net (15) can be hung on the primary anti-fall net (14) through an eye hook (17), and the other end of the transition net (15) is provided with a transition net slide bar (1501) that can be inserted into the transition net slide groove (1801).

6. The bridge hanging basket construction structure according to claim 1 is characterized in that: It also comprises a bottom walking channel (19), wherein the bottom walking channel (19) is arranged at the bottom of the hanging basket template, and the bottom walking channel (19) is a three-sided surrounding structure, and the three-sided surrounding structure is open toward a side away from the closing position of the cable-stayed bridge.

7. A bridge hanging basket construction structure according to claim 6, characterized in that: It also comprises a bottom walking channel protection net (20), the bottom walking channel protection net (20) comprising a frame (2001) and a protective soft net (2002) tied to the frame (2001), the frame (2001) being hung on the bottom walking channel (19) via eye hooks (17).

8. The bridge hanging basket construction structure according to claim 1 is characterized in that: The suspension structure comprises a steel sling (21), one end of the steel sling (21) is fixed on the hanging basket template, and the other end of the steel sling (21) is fixed on the secondary crossbeam (3).

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