A steel-concrete composite beam prefabricated bridge deck panel rapid hoisting device and hoisting method

By using a rapid lifting device for precast bridge decks of steel-concrete composite beams with movable tracks installed on the steel beams, and utilizing electric hoists and sliding mechanisms to lift and move the bridge decks longitudinally, the problems of large construction range and difficulty in controlling precision in existing technologies have been solved. This has enabled rapid and precise installation of bridge decks, improving construction efficiency and quality.

CN119976666BActive Publication Date: 2025-11-21CHINA RAILWAY BRIDGE BUREAU OF THE NINTH ENG CO LTD
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Patent Information

Application Number
CN202510065621.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-11-21
Estimated Expiration
2045-01-16

AI Technical Summary

Technical Problem

Existing technologies for installing precast steel-concrete composite beam bridge decks require a large construction area, making it difficult to install quickly and accurately in busy traffic or underground environments with limited space. Furthermore, they are greatly affected by weather conditions, making it difficult to control installation accuracy.

Method used

Design a rapid lifting device for precast steel-concrete composite beam bridge decks, including a main load-bearing beam, a lifting device, a support device, and a moving device. By installing a moving track on the steel beam, the bridge deck is lifted using an electric hoist and a sliding mechanism, and longitudinal movement and alignment are achieved through the moving device. Combined with anti-derailment devices and limit devices, the accuracy and efficiency of installation are ensured.

Benefits of technology

This enabled the rapid and precise installation of bridge deck panels within a limited space, improving construction efficiency and installation quality, reducing the dependence of construction on weather conditions, and ensuring high efficiency and precision in installation.

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Abstract

The application discloses a kind of steel concrete composite beam prefabricated bridge deck quick hoisting equipment and hoisting method, including main load-bearing beam, hoisting device, supporting device, moving device and transfer device, and the hoisting equipment is formed by the combination of main load-bearing beam, hoisting device, supporting device and moving device, the moving track is installed on the steel beam, the hoisting equipment is installed on the moving track by moving device and moves along the moving track, the installation of prefabricated bridge deck is realized by hoisting device hoisting, transverse moving, alignment, hooking etc., the longitudinal control of hoisting equipment is moved by moving device, alignment, reciprocating, so that steel concrete composite beam prefabricated bridge deck is quickly and accurately installed, and installation is more convenient and efficient, and quality is better.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material batching, in particular to a steel-concrete composite beam prefabricated bridge deck panel rapid hoisting device and hoisting method. BACKGROUND

[0002] The steel-concrete composite beam refers to a beam-type bridge formed by a steel beam and a concrete bridge deck panel through a connector to jointly bear force, wherein the concrete deck panel as the superstructure of the steel-concrete composite beam is a load-bearing structure directly bearing the vehicle load, and the prefabricated construction technology is usually adopted. The installation of the prefabricated bridge deck panel is an important process in the construction of the steel-concrete composite beam, and the installation quality directly affects the overall structural safety and service life of the bridge.

[0003] For the installation of the conventional steel-concrete composite beam prefabricated bridge deck panel, the truck crane is generally used to install the prefabricated bridge deck panel to the designed position. However, the truck crane position needs to be moved multiple times during the installation process, and the construction range occupies a large area, which is not suitable for the construction environment with heavy traffic and limited underground space. Moreover, the installation precision of the bridge deck panel is difficult to control due to the influence of weather during the erection of the truck crane. Therefore, a construction technology is needed to quickly and accurately install the steel-concrete composite beam prefabricated bridge deck panel, so as to make the installation more convenient and efficient and the quality better. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a steel-concrete composite beam prefabricated bridge deck panel rapid hoisting device and hoisting method, which can quickly and accurately install the steel-concrete composite beam prefabricated bridge deck panel by setting the hoisting device on the steel beam, hoisting the prefabricated bridge deck panel on the ground by the electric hoist, hoisting the prefabricated bridge deck panel above the bridge deck to complete the installation of the bridge deck panel, and realizing the longitudinal movement and alignment of the hoisting device by the movement device, so as to make the installation more convenient and efficient and the quality better.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] A steel-concrete composite beam prefabricated bridge deck panel rapid hoisting device, comprising:

[0007] a main load-bearing beam;

[0008] a hoisting device installed on the main load-bearing beam and moving along the main load-bearing beam, the hoisting device being used for hoisting the prefabricated bridge deck panel;

[0009] a supporting device connected with the main load-bearing beam, the supporting device being used for supporting the main load-bearing beam;

[0010] a movement device installed on the movement track and connected with the supporting device, the movement device being used for controlling the movement of the hoisting device along the movement track;

[0011] The moving device is provided with a supporting device, and the moving device is arranged between the supporting device and the moving track.

[0012] Further, the lifting device comprises an electric hoist and a sliding mechanism, the electric hoist is installed on the sliding mechanism, the sliding mechanism is installed on the main load-bearing beam, the electric hoist hoists the prefabricated bridge deck through a hook, and the sliding mechanism drives the electric hoist to move along the main load-bearing beam.

[0013] Further, the supporting device reserves a moving space, the lifting device passes through the moving space, the supporting device comprises an upper supporting beam, a lower supporting beam and a supporting leg, the upper supporting beam is connected with the main load-bearing beam, the supporting leg is supported between the upper supporting beam and the lower supporting beam, the lower supporting beam is provided with a mounting shaft, the supporting device is installed on the moving device through the mounting shaft, and the moving device is installed on the mounting shaft.

[0014] Further, the moving device comprises a moving pulley and a chain hoist, the moving pulley is installed on the moving track, and the chain hoist is installed on the moving pulley and moves along the moving track.

[0015] Further, the moving device comprises a motor, a traveling wheel box and traveling wheels, the motor and the traveling wheels are connected with the traveling wheel box, and the motor drives the traveling wheel box to drive the traveling wheels to move along the moving track.

[0016] The moving device further comprises a fixing device, the fixing device is used for fixing the moving device, the fixing device comprises a cable wind rope and an anchoring equipment, the anchoring equipment is installed on the steel beam, one end of the cable wind rope is connected with the supporting device, and the other end of the cable wind rope is connected with the anchoring equipment.

[0017] Further, the moving device is installed with an anti-derailing device, the anti-derailing device is used for preventing the moving device from separating from the moving track, the anti-derailing device comprises an anti-derailing plate and an elastic spring, the anti-derailing plate is hinged to the moving device through a pin shaft, the anti-derailing plate is provided with an ear plate one, the moving device is provided with an ear plate two, the two ends of the elastic spring are connected with the ear plate one and the ear plate two respectively, and the moving device is further provided with a limiting bolt, the limiting bolt is used for limiting the anti-derailing plate.

[0018] Further, the moving track is provided with a stop device at an end portion, the stop device is used for preventing the lifting device from separating from the moving track, the stop device comprises a fixed steel plate and a stop plate, the stop plate is welded and fixed with the fixed steel plate, the fixed steel plate is fixed through a bent hook bolt one, the stop plate has an arc structure, the arc stop plate is matched with the moving device, and the stop plate plays a stop role on the moving device.

[0019] Further, the moving track is provided with a stop device at an end portion, the stop device is used for preventing the lifting device from separating from the moving track, the stop device comprises a fixed steel plate and a stop plate, the stop plate is welded and fixed with the fixed steel plate, the fixed steel plate is fixed through a bent hook bolt one, the stop plate has an arc structure, the arc stop plate is matched with the moving device, and the stop plate plays a stop role on the moving device.

[0020] Further, the second limiting device is connected with the moving track, and the second limiting device is used for limiting the moving track, and the second limiting device comprises a clamping plate one, a clamping plate two and a limiting bolt, the clamping plate one is abutted with the moving track, and the clamping plate one and the clamping plate two are connected through the limiting bolt.

[0021] A hoisting method of a steel-concrete composite beam prefabricated bridge deck rapid lifting equipment, comprising the following steps:

[0022] Step one, first, install a moving track on the steel beam outside the steel-concrete composite beam, then limit the position of the moving track through the first limiting device and the second limiting device, then install the lifting equipment on the moving track, the lifting equipment is installed on the moving track through the moving device, the lifting equipment is moved to the prefabricated bridge deck installation position along the moving track through the moving device, and then the moving device is fixed through the fixing device to avoid the movement of the moving device;

[0023] Step two, control the electric hoist to move to the end of the main load-bearing beam through the sliding mechanism, hoist the prefabricated bridge deck from the ground to above the bridge deck through the electric hoist, make the electric hoist drive the prefabricated bridge deck to pass through the moving space reserved by the supporting device through the sliding of the sliding mechanism, and then lower the prefabricated bridge deck below the electric hoist to complete the alignment and hooking, and then repeat the step until the installation of the prefabricated bridge deck in the same row is completed;

[0024] Step three, when the installation of the prefabricated bridge deck in the same row is completed, the first limiting device and the second limiting device are removed from the moving track, the moving rail is transported to the direction of the movement of the lifting equipment through the reverse transport device, then the moving track is limited through the first limiting device and the second limiting device, then the lifting equipment is moved to the next prefabricated bridge deck installation position, and then the moving device is fixed through the fixing device;

[0025] Step four, repeat steps two and three until the installation of the prefabricated bridge deck is completed;

[0026] Step five, remove the lifting equipment.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] In the present application, the main load-bearing beam, the lifting device, the supporting device and the moving device are combined to form the lifting equipment, the moving track is installed on the steel beam, the lifting equipment is installed on the moving track through the moving device and moves along the moving track, the prefabricated bridge deck is hoisted through the lifting device, the installation of the prefabricated bridge deck is completed, and the lifting equipment is longitudinally controlled through the moving device to move and align, so that the steel-concrete composite beam prefabricated bridge deck is quickly and accurately installed, and the installation is more convenient and efficient, and the quality is better.

[0029] The mobile device is also provided with a derailment prevention device in the application, the mobile device is limited by the derailment prevention device, so as to avoid the mobile device from leaving the moving track, the derailment prevention device comprises a derailment prevention plate and an elastic spring, the derailment prevention plate is hinged on the mobile device through a pin shaft, the derailment prevention plate is provided with an ear plate one, the mobile device is provided with an ear plate two, the elastic spring is connected with the ear plate one and the ear plate two at two ends respectively, when the hoisting equipment moves to the steel beam cross beam position, the derailment prevention plate contacts the cross beam, and then the hoisting equipment passes through the cross beam, and then the elastic spring restores the derailment prevention plate to the initial state, the mobile device is also provided with a limiting bolt, the elastic spring is prevented from being too tight through the limiting bolt, and the derailment prevention plate is prevented from rotating reversely.

[0030] Through the above method steps, the prefabricated bridge deck is hoisted, transversely moved, aligned and hook-dropped by the hoisting equipment, so that the installation of the prefabricated bridge deck is completed, and the flow operation of the prefabricated bridge deck is realized in a cycle, and the installation efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The application will be further described below with reference to the drawings:

[0032] Figure 1 It is a structural schematic view of the steel-concrete composite beam prefabricated bridge deck fast hoisting equipment;

[0033] Figure 2 It is a side view of the steel-concrete composite beam prefabricated bridge deck fast hoisting equipment;

[0034] Figure 3 It is a structural schematic view of the mobile device and the fixing device in the application;

[0035] Figure 4 It is a movement state of the transfer device in the application Figure 1 ;

[0036] Figure 5 It is a movement state of the transfer device in the application Figure 2 ;

[0037] Figure 6 It is a structural schematic view of the mobile device and the derailment prevention device in the application;

[0038] Figure 7 It is a structural schematic view of the mobile device and the derailment prevention device in the application from another perspective;

[0039] Figure 8 It is a structural schematic view of the derailment prevention device in the application;

[0040] Figure 9 It is a structural schematic view of the derailment prevention device in the application from another perspective;

[0041] Figure 10 Structure diagram of the stop device in the application;

[0042] Figure 11 Structure diagram of the stop device and the moving device in the application;

[0043] Figure 12 Structure diagram of the first limiting device in the application;

[0044] Figure 13 Structure diagram of the second limiting device in the application;

[0045] Figure 14 Structure diagram of the second limiting device in the application from another perspective;

[0046] Figure 15 Use state diagram of the steel-concrete composite beam prefabricated bridge deck rapid lifting equipment in the application.

[0047] In the figure: 10-main load-bearing beam; 11-prefabricated bridge deck; 12-steel beam;

[0048] 20-lifting device; 21-electric hoist; 22-sliding mechanism; 23-hook;

[0049] 30-supporting device; 31-upper supporting beam; 32-lower supporting beam; 33-supporting leg; 34-mounting shaft; 35-moving space;

[0050] 40-moving device; 41-moving track; 42-fixing device; 43-motor; 44-traveling wheel box; 45-traveling wheel; 46-cable rope; 47-anchoring equipment;

[0051] 50-reverse transporting device; 51-reverse transporting rod; 52-moving pulley; 53-reverse chain hoist;

[0052] 60-derailing prevention device; 61-derailing prevention plate; 62-elastic spring; 63-pivot; 64-ear plate one; 65-ear plate two; 66-limiting bolt;

[0053] 70-stop device; 71-fixed steel plate; 72-stop plate; 73-bent hook bolt one;

[0054] 80-first limiting device; 81-pressing plate; 82-bent hook bolt two; 83-limiting groove;

[0055] 90-second limiting device; 91-clamping plate one; 92-clamping plate two; 93-limiting bolt. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0057] like Figures 1 to 15 As shown, this invention discloses a rapid lifting device for a precast bridge deck 11 made of steel-concrete composite beam. The device includes a main load-bearing beam 10, a lifting device 20, a supporting device 30, a moving device 40, a moving track 41, a transport device 50, a fixing device 42, an anti-derailment device 60, a stop device 70, a first limiting device 80, and a second limiting device 90. The lifting device 20 is installed on the main load-bearing beam 10 and can move along it. The lifting device 20 lifts the precast bridge deck 11 and moves it laterally onto the bridge deck for installation. The supporting device 30 is connected to the main load-bearing beam 10, and the main load-bearing beam 10 is supported on the supporting device 30. The moving device 40 is installed at the bottom of the supporting device 30 to facilitate the installation of the lifting device. The moving track 41 is laid on the bridge deck steel beam 12, and the first limiting device 80 and the second limiting device 90 limit the movement of the moving track 41 to prevent it from shifting. The lifting device is installed on the moving track via the moving device 40. The crane moves along the track 41. The reversing device 50 is installed between the moving device 40 and the support device 30. After the precast bridge panels 11 in the same row are installed, the crane needs to be moved. The reversing device 50 reverses the moving track 41 to the direction of the crane's movement, reusing the moving track 41 and reducing the number of moving tracks 41. After the crane moves to the designated position, the moving device 40 is fixed by the fixing device 42 to prevent the moving device 40 from moving during the hoisting of the precast bridge panels 11. The anti-derailment device 60 is installed on the side of the moving device 40. The rigidity of the anti-derailment device 60 limits the left and right deviation of the moving device 40, preventing the crane from deviating from the moving track 41 during the movement. The stop device 70 is set at the end of the moving track 41. The stop device 70 stops the crane and prevents the crane from going off the moving track 41 during the movement.

[0058] This invention uses a main load-bearing beam 10, a lifting device 20, a support device 30, and a moving device 40 to form a lifting device. A moving track 41 is installed on the steel beam 12. The lifting device is installed on the moving track 41 via the moving device 40 and moves along the moving track 41. The precast bridge panel 11 is lifted by the lifting device 20 to complete the installation of the precast bridge panel 11. The moving device 40 is used to longitudinally control the movement and alignment of the lifting device, thereby quickly and accurately installing the precast bridge panel 11 of the steel-concrete composite beam, making the installation more convenient, efficient, and of better quality. In addition, an anti-derailment device 60 is installed to limit the moving device 40 and prevent it from leaving the moving track 41.

[0059] The main load-bearing beam 10 is a truss beam welded by section steel, and the two ends of the main load-bearing beam 10 are cantilevered out of the outer steel beam 12 of the concrete composite beam bridge, so as to facilitate the lifting device 20 to hoist the prefabricated bridge deck 11 from the two sides of the bridge.

[0060] The lifting device 20 includes an electric hoist 21 and a sliding mechanism 22, the electric hoist 21 is installed on the sliding mechanism 22, the sliding mechanism 22 is installed on the main load-bearing beam 10, the sliding mechanism 22 can move transversely along the main load-bearing beam 10, the electric hoist 21 hoists the prefabricated bridge deck 11 through a hook 23, and then the electric hoist 21 is driven by the sliding mechanism 22 to move along the main load-bearing beam 10 to move the prefabricated bridge deck 11 to a mounting position, so that the prefabricated bridge deck 11 is hoisted, and the sliding mechanism 22 belongs to the prior art and can be specifically a sliding trolley, and the specific structure of the sliding mechanism 22 is not limited in the embodiment, so it will not be described here.

[0061] The lifting device 20 can be provided with one or more, and in the embodiment, one lifting device 20 is provided to hoist the prefabricated bridge deck 11 on both sides of the bridge, and two lifting devices 20 can also be provided to simultaneously hoist the prefabricated bridge deck 11 on both sides of the bridge.

[0062] The support device 30 has a trapezoidal structure, the support device 30 includes an upper support beam 31, a lower support beam 32 and a support leg 33, the upper support beam 31 is connected with the main load-bearing beam 10, the support leg 33 is supported between the upper support beam 31 and the lower support beam 32, the support leg 33 is provided with two, a moving space 35 is reserved between the two support legs 33, the lifting device 20 passes through the moving space 35, the lower support beam 32 is provided with a mounting shaft 34, the support device 30 is mounted on the moving device 40 through the mounting shaft 34, and the reverse conveying device 50 is mounted on the mounting shaft 34.

[0063] The support device 30 is provided with two, and the two support devices 30 stably support the main load-bearing beam 10, and the distance between the two support devices 30 is consistent with the distance between the outer steel beams 12 of the concrete composite beam.

[0064] The moving device 40 includes a motor 43, a traveling wheel box 44 and traveling wheels 45, the motor 43 and the traveling wheels 45 are connected with the traveling wheel box 44, the motor 43 drives the traveling wheel box 44 to drive the traveling wheels 45 to move along a moving track, and the moving speed of the traveling wheels 45 is controlled through the traveling wheel box 4.

[0065] The fixing device 42 is used for fixing the moving device 40, and the fixing device includes a cable wind rope 46 and an anchoring equipment 47, the anchoring equipment 47 is installed on the steel beam, one end of the cable wind rope 46 is connected with the support device, and the other end of the cable wind rope 46 is connected with the anchoring equipment 47.

[0066] The reversing device 50 comprises a reversing rod 51, a moving pulley 52 and a reversing chain block 53. The reversing rod 51 is rotatably installed on the installation shaft 34. The reversing chain block 53 is installed on the reversing rod 51 through the moving pulley 52 and moves along the reversing rod 51. The moving track 41 is hoisted through the reversing chain block 53. After the prefabricated bridge deck slab 11 of the same row is installed, the hoisting equipment needs to be moved along the moving track 41. The moving track 41 is hoisted through the reversing chain block 53. Then, the moving track 41 is transported to the moving direction of the hoisting equipment through the rotation of the reversing rod 51. The moving track 41 is moved to the installation position through the moving pulley 52 on the reversing rod 51. Finally, the moving track 41 is lowered through the reversing chain block 53 to be limited, thereby realizing the reversing of the moving track 41.

[0067] The anti-derailing device 60 comprises an anti-derailing plate 61 and an elastic spring 62. The anti-derailing plate 61 is hingedly connected to the side of the moving device 40 through a pin shaft 63. The rigidity of the anti-derailing plate 61 limits the left and right deviation of the moving device 40, thereby avoiding the deviation of the moving device 40 from the moving track 41. The anti-derailing plate 61 is rotatable about the pin shaft 63. The anti-derailing plate 61 is provided with an ear plate one 64. The moving device 40 is provided with an ear plate two 65. The elastic spring 62 is connected to the ear plate one 64 and the ear plate two 65 at two ends, respectively. When the hoisting equipment moves to the position of the cross beam of the steel beam 12, the anti-derailing plate 61 is in contact with the cross beam to rotate, thereby making the anti-derailing plate 61 pass through the cross beam. After the anti-derailing plate 61 crosses the cross beam, the elastic spring 62 is tightened to restore the original state. The side of the moving device 40 is further provided with a limiting bolt 66. The limiting bolt 66 is used for limiting the anti-derailing plate 61 to prevent the elastic spring 62 from being tightened too much, thereby causing the anti-derailing plate 61 to rotate reversely and lose the effect.

[0068] The stop device 70 comprises a fixed steel plate 71 and a stop plate 72. The stop plate 72 is welded and fixed with the fixed steel plate 71. The stop plate 72 is welded at the front end of the fixed steel plate 71. The fixed steel plate 71 is connected and fixed with the shear channel steel through a bent hook bolt one 73. The stop plate 72 is in an arc structure. The arc stop plate 72 is matched with the moving device 40. The stop plate 72 plays a stop role on the moving device 40.

[0069] In the embodiment, the moving track 41 is installed at two positions. One of the moving tracks 41 is installed on the prefabricated bridge deck slab 11 which has been laid and is limited by the limiting device one 80. The other installation position of the moving track 41 is located on the steel beam 12 and is limited by the limiting device two 90.

[0070] The limiting device one 80 comprises a pressing plate 81 and a bent hook bolt two 82. The pressing plate 81 is provided with a limiting groove 83. The moving track 41 is limited in the limiting groove 83. The two sides of the pressing plate 81 are provided with holes. The bent hook bolt two 82 passes through the holes and is connected with the shear channel steel. The pressing plate 81 is locked by tightening the bent hook bolt two 82, thereby limiting the moving track 41.

[0071] The two limiting devices two 90 are arranged on both sides of the moving track 41, and the limiting device two 90 comprises a clamping plate one 91, a clamping plate two 92 and a limiting bolt 93. The clamping plate one 91 is arranged in abutment with the moving track 41, and the moving track 41 is arranged between the two clamping plate one 91 and is limited by the two clamping plate one 91. The clamping plate two 92 is arranged on the bottom side of the clamping plate one 91, and the clamping plate one 91 and the clamping plate two 92 are connected by the limiting bolt 93. After the moving track 41 is installed in place, the limiting bolt 93 is tightened to fix the clamping plate one 91 and the clamping plate two 92 on the steel beam 12, so as to avoid the deviation of the moving track 41. After the limiting bolt 93 is loosened, the clamping plate two 92 can be freely rotated, and the moving track 41 is convenient to disassemble.

[0072] A hoisting method of a steel-concrete composite beam prefabricated bridge deck 11 rapid lifting device, comprising the following steps:

[0073] Step one, first install the moving track 41 on the steel beam 12 outside the steel-concrete composite beam, then limit the position of the moving track 41 by the limiting device one 80 and the limiting device two 90, then install the lifting device on the moving track 41, the lifting device is installed on the moving track 41 by the moving device 40, the lifting device is moved to the prefabricated bridge deck 11 installation position along the moving track 41 by the moving device 40, and then the moving device 40 is fixed by the fixing device 42 to avoid the movement of the moving device 40;

[0074] Step two, control the electric hoist 21 to move to the end of the main load-bearing beam 10 by the sliding mechanism 22, hoist the prefabricated bridge deck 11 from the ground to above the bridge deck by the electric hoist 21, then make the electric hoist 21 drive the prefabricated bridge deck 11 to pass through the moving space 35 reserved by the supporting device 30 by the sliding of the sliding mechanism 22, and then lower the prefabricated bridge deck 11 by the electric hoist 21 to complete the alignment and hooking, and then repeat the step until the installation of the prefabricated bridge deck 11 in the same row is completed;

[0075] Step three, when the installation of the prefabricated bridge deck 11 in the same row is completed, the limiting device one 80 and the limiting device two 90 are removed to limit the moving track 41, the moving rail is transported to the direction of the movement of the lifting device by the reverse transport device 50, then the moving track 41 is limited by the limiting device one 80 and the limiting device two 90 again, then the lifting device is moved to the prefabricated bridge deck 11 installation position, and then the moving device 40 is fixed by the fixing device 42;

[0076] Step four, repeat steps two and three until the installation of the prefabricated bridge deck 11 is completed;

[0077] Step five, disassemble the lifting device.

[0078] Through the above method steps, the precast bridge deck slab 11 is hoisted, transversely moved, aligned and hook-dropped by the hoisting equipment, so that the installation of the precast bridge deck slab 11 is completed, and the flow operation of the precast bridge deck slab 11 is realized in a cycle, thereby greatly improving the installation efficiency.

[0079] The embodiments of the present application are not limited to this, and according to the above embodiment content of the present application, other various forms of modifications, replacements or combinations can be made to the above preferred embodiments by using the conventional technical knowledge and common means in the art without departing from the above basic technical idea of the present application and without conflict, and the obtained other embodiments are all within the protection scope of the present application.

Claims

1. A rapid lifting device for precast bridge decks of steel-concrete composite beams, characterized in that, include: Main load-bearing beam; A lifting device is installed on the main load-bearing beam and moves along the main load-bearing beam. The lifting device is used to lift the precast bridge deck. A support device is connected to the main load-bearing beam, and the support device is used to support the main load-bearing beam; A mobile device is mounted on a mobile track and connected to the support device, the mobile device being used to control the lifting equipment to move along the mobile track; A transfer device is placed between the moving device and the supporting device, and the transfer device is used to move the moving track; The lifting device includes an electric hoist and a sliding mechanism. The electric hoist is mounted on the sliding mechanism, which is mounted on the main load-bearing beam. The electric hoist lifts the precast bridge panel via a hook, and the sliding mechanism drives the electric hoist to move along the main load-bearing beam. The support device has reserved movement space, the lifting device passes through the movement space, the support device includes an upper support beam, a lower support beam and a support leg, the upper support beam is connected to the main load-bearing beam, the support leg is supported between the upper support beam and the lower support beam, the lower support beam is provided with an installation shaft, the support device is installed on the moving device through the installation shaft, and the transport device is installed on the installation shaft; The hoisting device includes a hoisting rod, a movable pulley, and a chain hoist. The hoisting rod is rotatably mounted on the mounting shaft. The chain hoist is mounted on the hoisting rod via the movable pulley and moves along the hoisting rod. The chain hoist is used to hoist the movable track. The mobile device includes a motor, a wheel box, and wheels. The motor and the wheels are both connected to the wheel box. The motor drives the wheel box to move the wheels along the mobile track. The mobile device also includes a fixing device for fixing the mobile device. The fixing device includes a guy rope and an anchoring device. The anchoring device is installed on the steel beam. One end of the guy rope is connected to the support device and the other end is connected to the anchoring device. The mobile device is equipped with an anti-derailment device to prevent the mobile device from leaving the moving track. The anti-derailment device includes an anti-derailment plate and a spring. The anti-derailment plate is hinged to the mobile device by a pin. The anti-derailment plate has a first ear plate, and the mobile device has a second ear plate. The two ends of the spring are respectively connected to the first ear plate and the second ear plate. The mobile device is also equipped with a limiting pin to limit the anti-derailment plate.

2. The rapid lifting equipment for precast bridge decks of steel-concrete composite beams according to claim 1, characterized in that: A stop device is installed at the end of the moving track. The stop device is used to prevent the lifting equipment from leaving the moving track. The stop device includes a fixed steel plate and a stop plate. The stop plate is welded and fixed to the fixed steel plate. The fixed steel plate is fixed by a hook bolt. The stop plate has an arc-shaped structure. The arc-shaped stop plate matches the moving device. The stop plate acts as a stop for the moving device.

3. The rapid lifting equipment for precast bridge decks of steel-concrete composite beams according to claim 1, characterized in that: It also includes a limiting device 1, which is connected to the moving track. The limiting device 1 is used to limit the moving track. The limiting device 1 includes a pressure plate and a hook bolt 2. The pressure plate has a limiting groove, and the moving track is limited in the limiting groove. The hook bolt 2 passes through the pressure plate and fixes the pressure plate by the hook bolt 2.

4. The rapid lifting equipment for precast bridge decks of steel-concrete composite beams according to claim 1, characterized in that: It also includes a second limiting device, which is connected to the moving track and is used to limit the moving track. The second limiting device includes a first clamp, a second clamp, and a limiting bolt. The first clamp abuts against the moving track, and the first clamp and the second clamp are connected by the limiting bolt.

5. A method for hoisting a rapid lifting device for precast bridge decks of steel-concrete composite beams according to any one of claims 1-4, characterized in that... Includes the following steps: Step 1: First, install a moving track on the steel beam outside the steel-concrete composite beam. Then, limit the position of the moving track using limiting device 1 and limiting device 2. Next, install the lifting equipment on the moving track. The lifting equipment is installed on the moving track via a moving device. The lifting equipment moves along the moving track to the precast bridge panel installation position via the moving device. Then, fix the moving device with a fixing device to prevent the moving device from moving. Step 2: Control the electric hoist to move to the end of the main load-bearing beam through the sliding mechanism. Use the electric hoist to lift the precast bridge panel from the ground to above the bridge deck. Then, use the sliding mechanism to make the electric hoist move the precast bridge panel through the movement space reserved by the support device. After reaching the designated position, pass the precast bridge panel under the electric hoist to complete the alignment and hooking. Then repeat this step until the installation of the same row of precast bridge panels is completed. Step 3: After the precast bridge panels in the same row are installed, release the limit devices 1 and 2 from the moving track. Use the reversing device to reverse the moving track to the direction of the crane's movement. Then, use the limit devices 1 and 2 to limit the moving track again. Then, move the crane to the next row of precast bridge panels to be installed. Finally, use the fixing device to fix the moving device. Step four, repeat steps two and three until the prefabricated bridge deck is installed; Step 5: Dismantle the lifting equipment.

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