Overall installation system of high-pier through type bridge building machine

Abstract

The utility model relates to an integral mounting system of a high-pier through bridge building machine. The integral mounting system comprises a lifting bracket system, the two winch sets are arranged on the lifting support system, and the two winch sets are symmetrically distributed in the longitudinal bridge direction; the moving devices are located on one side of each winch set and movably connected to the lifting support system, each moving device is connected with a pulley block, and one end of a steel wire rope on each winch set winds around the corresponding pulley block and is connected with the bridge building machine body frame; and the alignment adjusting device is arranged on the moving device, one end of the alignment adjusting device is connected with the bridge building machine main body frame, and the alignment adjusting device is used for lifting the bridge building machine main body frame. The construction method has the effects of safe construction and high efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bridge construction, in particular to a high-pier through bridge erector integral installation system. BACKGROUND

[0002] In the cantilever construction of a continuous beam (rigid frame) bridge, the bridge erector is a key equipment, and the selection of the structural form and installation method of the bridge erector has an important influence on the construction efficiency, safety and engineering quality. With the continuous increase of the bridge span and the expansion of the construction segment length, which has currently reached 6-8m, the design and use of the bridge erector are facing more challenges.

[0003] For a through bridge erector, the main truss is located on the lower side of the flange plate. The traditional bridge erector installation method relies on the cooperation of a tower crane and a crane. When the tower crane or the crane is hoisting, due to the low position of the main truss of the through bridge erector, it is often difficult to directly reach some areas, resulting in the problem of hoisting blind area of the through bridge erector in the installation process, so that the hoisting operation cannot be smoothly carried out.

[0004] In addition, under the high-tower working condition, the lifting capacity of the tower crane is limited, especially when installing a large segment bridge, the weight and size of the bridge erector often exceed the rated lifting range of the tower crane. This not only increases the installation difficulty, but also may cause inaccurate installation of the bridge erector, affecting the quality and safety of subsequent construction. SUMMARY

[0005] The application provides a high-pier through bridge erector integral installation system, which can solve the problem that the bridge erector is installed by relying on the cooperation of a tower crane and a crane in the related art, the position of the main truss of the through bridge erector is low, and the lifting capacity of the tower crane is limited under the high-tower working condition, so that the through bridge erector is difficult to install, the efficiency is low, and the installation risk is large.

[0006] The application embodiment provides a high-pier through bridge erector integral installation system, which comprises a lifting support system, two groups of winch sets arranged on the lifting support system and symmetrically distributed about the longitudinal bridge direction, a moving device arranged on one side of each group of winch sets and movably connected to the lifting support system, a pulley block connected to the moving device, one end of a steel wire rope on the winch set being wound through the pulley block and connected to a bridge erector main body frame, and a positioning and adjusting device arranged on the moving device, one end of the positioning and adjusting device being connected to the bridge erector main body frame and used for lifting the bridge erector main body frame.

[0007] In one embodiment, the moving device includes: a distribution beam frame located on one side of each set of the winches and connected to the lifting support system; a through-hole jack located between the distribution beam frame and the winches and connected to the distribution beam frame; and the pulley block and the alignment adjustment device both connected to the distribution beam frame.

[0008] In one embodiment, the alignment adjustment device includes: a threaded steel bar, one end of which is rotatably connected to the distribution beam frame, and the other end of which passes downward through the distribution beam frame; and a conversion joint, which is rotatably connected to the other end of the threaded steel bar, the conversion joint also having a pin hole for connecting with a lifting lug.

[0009] In one embodiment, the lifting support system includes: a front C-hook; a double-layer Bailey beam truss fixed to both sides of the front C-hook, with at least two sets of the double-layer Bailey beam truss provided on each side of the front C-hook; and a steel diagonal brace, one end of which is fixed to the double-layer Bailey beam truss and the other end of which is fixed to the front C-hook.

[0010] In one embodiment, a steel connection system is also provided between the double-layer Bailey beam trusses on both sides of the front C-hook.

[0011] In one embodiment, a plurality of anchor rods are provided at the center of the double-layer Bailey truss, with one end of the anchor rods fixed to the double-layer Bailey truss and the other end used to anchor to the bridge deck.

[0012] In one embodiment, a support cylinder is provided at the bottom fulcrum of the front C-hook.

[0013] In one embodiment, the bottom of the front C-hook is further provided with a walking system, the walking system including a track and a pusher seat connected to the track and a hydraulic telescopic rod, the rod body of the hydraulic telescopic rod being connected to the pusher seat, and the front C-hook being placed on the pusher seat.

[0014] In one embodiment, a reaction rope is connected between the winch unit and the double-layer Bailey beam truss.

[0015] In one embodiment, a guy rope is also included, one end of which is connected to the bottom of the pier, and the other end is used to connect to the main frame of the bridge construction machine.

[0016] The beneficial effects of the technical solutions provided in this application include:

[0017] This application provides an integrated installation system for a high-pier under-bearing bridge-building machine. By using two sets of winches to lift the main frame of the bridge-building machine on both sides of the longitudinal direction of the bridge, the two sets of winches can distribute the load, reduce the safety risks caused by weight restrictions during high-altitude hoisting, and the separate operation of different winch sets can also speed up the construction efficiency. In addition, the winch sets are used to lift the machine first, and then the alignment adjustment device is used for a second lift, which makes the alignment of the bridge-building machine at high altitude more convenient and precise, further improving construction safety and efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0020] Figure 2 A schematic diagram illustrating a mobile device provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram illustrating the alignment adjustment device provided in an embodiment of this application;

[0022] Figure 4 A schematic diagram illustrating the adapter provided for an embodiment of this application;

[0023] Figure 5 This is a schematic diagram illustrating the lifting support system provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram illustrating a walking system provided in an embodiment of this application;

[0025] Figure 7 A schematic diagram illustrating the limiting slot provided in an embodiment of this application;

[0026] In the diagram: 1. Lifting support system; 10. Front C-hook; 11. Double-layer Bailey beam truss; 12. Steel diagonal brace; 13. Steel connection system; 14. Anchor bolt; 2. Winch unit; 20. Bridge construction machine main frame; 21. Base basket system; 22. Hanging rod; 23. Support rod; 24. Limiting slot; 3. Moving device; 30. Distribution beam frame; 31. Through-hole jack; 32. Pulley block; 40. Threaded steel bar; 41. Converter joint; 42. Pin hole; 5. Support cylinder; 50. Shaping pad; 6. Walking system; 60. Track; 61. Pushing seat; 62. Hydraulic telescopic rod; 7. Reaction rope; 8. Guy rope. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0028] This application provides an overall installation system for a high-pier under-deck bridge-building machine, which solves the problem in related technologies that rely on the cooperation of tower cranes and gantry cranes to install bridge-building machines. The main truss of the under-deck bridge-building machine is located at a low position, and the lifting capacity of the tower crane is limited under high-tower conditions, making the installation of the under-deck bridge-building machine difficult, inefficient, and risky.

[0029] Reference Figures 1 to 7 A high-pier under-bearing bridge construction machine overall installation system includes a lifting support system 1, a winch unit 2, a moving device 3, and a positioning adjustment device. In this application, the lifting support system 1 is installed on the top of the pier. The lifting support system 1 includes a front C-hook 10, a double-layer Bailey beam truss 11, and steel diagonal braces 12. The front C-hook 10 is arranged at both ends of the bridge deck along the longitudinal direction of the bridge. The double-layer Bailey beam truss 11 is fixed to both sides of the front C-hook 10, and at least two sets of double-layer Bailey beam trusses 11 are provided on each side of the front C-hook 10. One end of the steel diagonal brace 12 is fixed to the double-layer Bailey beam truss 11, and the other end is fixed to the front C-hook 10. In addition, a steel connecting system 13 is also connected between the double-layer Bailey beam trusses 11 on both sides of the front C-hook 10. In this application, before the main frame 20 of the bridge construction machine is officially hoisted, the lifting support system 1 is first installed on the bridge deck. The lifting support system 1 is formed by the mutual cooperation and connection of the front C-hook 10, the double-layer Bailey beam truss 11, the steel diagonal brace 12 and the steel connecting system 13.

[0030] Then, two sets of winch units 2 are installed on the lifting support system 1. The two sets of winch units 2 are symmetrically distributed about the longitudinal direction of the bridge. Each set of winch units 2 includes two winches, which are respectively arranged on the double-layer Bailey beam truss 11 on both sides. The moving device 3 is located on one side of each set of winch units 2. Specifically, a moving device 3 is set on one side of each winch. The moving device 3 is movably connected to the lifting support system 1. The moving device 3 is also connected to the pulley block 32. One end of the wire rope on the winch unit 2 is wrapped around the pulley block 32 and connected to the main frame 20 of the bridge building machine. The specific moving device 3 includes a distribution beam frame 30 and a through-hole jack 31. The distribution beam frame 30 is located on one side of each set of winches 2, specifically on one side of each winch, and is connected to the lifting support system 1. The through-hole jack 31 is located between the distribution beam frame 30 and the winch set 2, and is connected to the distribution beam frame 30. The pulley block 32 and the alignment adjustment device are both connected to the distribution beam frame 30. The connection method between one end of the wire rope on the winch set 2 and the main frame 20 of the bridge building machine is that an eight-shaped rope is set at the bottom of the pulley block 32 and a shackle is used for connection. The eight-shaped rope is also connected to the lifting lug on the main frame 20 of the bridge building machine through a shackle.

[0031] Finally, the alignment adjustment device is installed on the moving device 3 and specifically connected to the distribution beam frame 30. One end of the alignment adjustment device is connected to the main frame 20 of the bridge-building machine for lifting the main frame 20. The alignment adjustment device includes a threaded steel bar 40 and a conversion joint 41. One end of the threaded steel bar 40 is rotatably connected to the distribution beam frame 30, and the other end passes downward through the distribution beam frame 30. The conversion joint 41 is rotatably connected to the other end of the threaded steel bar 40, and the conversion joint 41 is also provided with a pin hole 42 for connecting with the lifting lug. The conversion joint 41 will then be connected to the ear plate on the main frame 20 of the bridge-building machine via a pin shaft. The ear plate is pre-installed at the bottom of the pier.

[0032] In this application, the main frame 20 of the bridge-building machine is first pre-installed on both sides of the pier bottom. Then, the main frame 20 is lifted directly from the pier bottom using a winch unit 2. The winch unit 2, through the cooperation of the through-hole jack 31 and the distribution beam frame 30, effectively adjusts the lifting points on the winch to the correct position. Then, a suitable angle and position are selected for lifting. During the lifting process, two sets of winch units 2 are used to lift the main frame 20 on both sides of the pier bottom respectively, achieving weight distribution. This effectively reduces the stress on individual lifting points and avoids instability or safety issues caused by excessive weight. Furthermore, at the construction and installation location, threaded steel bars 40 and conversion joints 41 are used to connect to the main frame 20 of the bridge-building machine. Rotating the screw steel drive lifts the main frame 20 from the positioning height to the design elevation and fixes it to the front C-hook 10. This process not only achieves precise alignment and installation but also ensures the stability and safety of the bridge-building machine. Special note: The positioning height is set to the maximum lifting limit position of winch unit 2. The construction and installation position is located on both sides of the front C hook 10. The design elevation position is the position where it is fixedly connected with the front C hook 10.

[0033] In this application, the main frame 20 of the bridge building machine can be stabilized by the help of guy ropes 8 during the hoisting process. Therefore, the installation system also includes guy ropes 8, one end of which is connected to the bottom of the pier and the other end is used to connect the main frame 20 of the bridge building machine. Guy ropes 8 are used, but are not limited to, during small-scale hoisting and swinging.

[0034] In this application, the pre-assembly of the main frame 20 of the bridge construction machine includes the following steps: Restriction slots 24 are arranged in a rectangular pattern on both sides of the pier bottom. The arrangement of the restriction slots 24 can be determined according to the site construction conditions. Specific arrangements include, but are not limited to, directly constructing the restriction slots 24 on the pier bottom platform using concrete masonry; or installing support rods 23 on a construction platform on one side of the pier bottom platform. Support blocks are provided at the top of the support rods 23, and the restriction slots 24 are formed on the support blocks. If restriction slots 24 are provided on both the support rods 23 and the pier bottom platform, the bottom horizontal height of the restriction slots 24 on the pier bottom platform and the support rods 23 must be consistent. By arranging the restriction slots 24 in a rectangular pattern, a stable support frame can be formed, providing a solid foundation for subsequent assembly work.

[0035] Subsequently, the main truss frame system is assembled using the limiting slot 24. During construction, the main truss frame system can be lifted to the limiting slot 24 using ground-based hoisting equipment. The guy ropes 8 on both sides of the main truss frame system are temporarily anchored to prevent displacement or tilting during assembly, thus ensuring the accuracy and quality of the assembly. With the support of the limiting slot 24, components such as the spreader beam lifting device and temporary diagonal braces can be installed on the main truss frame system, ensuring the stability and accuracy of the main truss frame system during assembly. Alternatively, in other embodiments, the main truss frame system can be divided into multiple components, which are then assembled at the limiting slot 24.

[0036] Finally, at the limiting slot 24, the winch unit 2 is used to lift the main truss frame system to the lifting position, which is 6-7 meters above the ground. At this lifting position, the bottom basket system 21 is connected to the main truss frame system via the lifting rod 22. The bottom basket system 21 is an important component of the bridge-building machine, used to support construction personnel and equipment, and serving as a construction platform. Connecting the bottom basket system 21 to the main truss frame system allows for the overall assembly of the main frame 20 of the bridge-building machine. The main truss frame system and the bottom basket system 21 can be assembled separately and then combined, reducing the difficulty of overall hoisting. Furthermore, the bottom basket system 21 is installed on the ground or at low altitude, which is safer than traditional high-altitude assembly. Therefore, this embodiment of the application, by assembling the main frame 20 of the bridge-building machine at the bottom of the pier, is safer and more efficient than traditional high-altitude assembly, and facilitates worker operation and quality inspection.

[0037] Traditionally, installing the main frame 20 of a bridge-building machine using tower cranes is time-consuming. Installing both frames sequentially on either side of the pier is slow; simultaneously installing both frames exceeds the tower crane's rated lifting capacity; and using two tower cranes is costly. Furthermore, for high-height piers, tower crane operations at height are dangerous and difficult. Therefore, this application, through pre-assembly followed by hoisting using winch unit 2, significantly shortens installation time, improves efficiency, and overcomes the limited lifting capacity under high-tower conditions. The collaboration between winch unit 2 and the alignment adjustment device ensures precise alignment and installation, guaranteeing the stability and accuracy of the bridge-building machine's main frame 20, and providing strong assurance for the quality and safety of subsequent construction.

[0038] In this application, several anchor bolts 14 are also provided at the center of the double-layer Bailey beam truss 11. One end of each anchor bolt 14 is fixed to the double-layer Bailey beam truss 11, and the other end is used to anchor it to the bridge deck. The anchor bolts 14 enhance the stability of the lifting support system 1 and the structures of the winch units 2, alignment adjustment devices, and moving devices 3 installed on the lifting support system 1. After the lifting support system 1 is anchored to the bridge deck, the two sets of winch units 2 can operate synchronously on both sides of the bridge deck or independently on one side. The operating mode of the two sets of winch units 2 can be selected according to the on-site construction. If the two sets of winch units 2 operate synchronously on both sides of the bridge deck, the main frame 20 of the bridge construction machine will have a fast lifting efficiency, a balanced load distribution, and stable lifting. If the two sets of winch units 2 operate independently on both sides of the bridge deck, this method, compared to the traditional method of using a tower crane and a crane in conjunction, can also accelerate the construction progress. Furthermore, the anchor bolts 14 ensure the structural reliability of the lifting support system 1 and prevent the lifting support system 1 from overturning. The selection of the above multiple construction options effectively provides convenience for construction.

[0039] In this application, when the two sets of winch units 2 are running synchronously on both sides of the bridge deck or independently on one side, a reaction rope 7 is connected between the winch units 2 and the double-layer Bailey beam truss 11. The reaction rope 7 can balance the horizontal traction force of the winch units 2 during lifting; when the winch units 2 finish operating, the reaction rope 7 is released to ensure that the lifting point can be easily replaced without being affected by the reaction rope 7.

[0040] In this application, because the lifting support system 1 is installed on top of the bridge pier, a support cylinder 5 is provided at the bottom support point of the front C-hook 10 to improve the stability of the installation. The support cylinder 5 can provide a stable support point for the front C-hook 10, ensuring the safety of the front C-hook 10 at high altitude on the bridge deck. After the front C-hook 10 is fixed, the lifting support system 1 is installed on the front C-hook 10 along the longitudinal direction of the bridge. Before installing the lifting support system 1, a pad 50 is placed under the bottom flange plate of the front C-hook 10 to further support stability.

[0041] In this application, a walking system 6 is also provided at the bottom of the front C-hook 10. The walking system 6 includes a track 60, a jacking seat 61 connected to the track 60, and a hydraulic telescopic rod 62. The rod of the hydraulic telescopic rod 62 is connected to the jacking seat 61, and the front C-hook 10 is placed on the jacking seat 61. The specific steps for arrangement are as follows: First, lay out the track 60 on the bridge deck and check the anchor bolt positions. Then, lay the tracks 60 symmetrically along both sides of the bridge deck and about the transverse bridge center, keeping the track 60 straight and parallel. Then, connect the jacking seat 61 and the hydraulic telescopic rod 62 to the track 60, aligning the rod of the hydraulic telescopic rod 62 with the installation interface of the jacking seat 61. Then, install the front C-hook 10 on the walking system 6 along the transverse bridge direction, specifically placing the front C-hook 10 on the jacking seat 61. During the construction phase, the walking system 6 can drive the front C-hook 10 to move on the bridge deck. The movement of the front C-hook 10 can drive the fixed bridge construction machine main frame 20 for high-altitude construction operations. It should be noted that during the installation of the main frame 20 of the bridge construction machine, the front C-hook 10 is located on the walking system 6 and is temporarily anchored to the bridge deck by means of anchor rods 14, including but not limited to. The walking system 6 is not in operation. The anchoring will be released when the main frame 20 of the bridge construction machine is officially put into construction and use.

[0042] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A system for integral installation of a high pier through bridge erector, characterized in that, It includes: Lifting support system (1); Hoist set (2), two groups of hoist sets (2) are arranged on the lifting support system (1), and the two groups of hoist sets (2) are symmetrically distributed about the longitudinal bridge direction; Mobile device (3) is located on one side of each group of hoist sets (2) and can be movably connected to the lifting support system (1), and a pulley block (32) is connected to the mobile device (3), one end of the steel wire rope on the hoist set (2) is wound through the pulley block (32) and connected with the bridge erecting machine main frame (20); The alignment adjusting device is arranged on the mobile device (3), one end of the alignment adjusting device is connected with the bridge erecting machine main frame (20), and the bridge erecting machine main frame (20) is used for lifting the bridge erecting machine main frame (20).

2. A system for integrated erection of a high pier through bridge as claimed in claim 1 wherein: The mobile device (3) includes: Distribution beam frame (30) is located on one side of each group of hoist sets (2) and is connected to the lifting support system (1); Through the jack (31) between the distribution beam frame (30) and the hoist set (2) and connected with the distribution beam frame (30); And the pulley block (32) and the alignment adjusting device are connected to the distribution beam frame (30).

3. A system for integrated erection of a high pier through bridge as claimed in claim 2 wherein: The alignment adjusting device includes: Threaded steel (40), one end of which is rotatably connected to the distribution beam frame (30), and the other end penetrates downward through the distribution beam frame (30); The conversion joint (41) is rotatably connected to the other end of the threaded steel (40), and the conversion joint (41) is further provided with a pin hole (42) for connecting with the lifting lug.

4. A system for integrated erection of a high pier through bridge as claimed in claim 1 wherein: The lifting support system (1) includes: Front C hook (10); Double-layer Bailey beam truss (11) is fixed to the two sides of the front C hook (10), and at least two groups of double-layer Bailey beam trusses (11) are arranged on each side of the front C hook (10); The profile steel inclined strut (12) is fixed at one end of the double-layer Bailey beam truss (11) and at the other end of the front C hook (10).

5. A system for integrated erection of a high pier through bridge as claimed in claim 4 wherein: The double-layer Bailey beam trusses (11) on the two sides of the front C hook (10) are further connected with the profile steel connecting system (13).

6. A system for integrated erection of a high pier through bridge as claimed in claim 4 wherein: A plurality of anchor rods (14) are arranged at the center position of the double-layer Bailey beam truss (11), one end of the plurality of anchor rods (14) is fixed to the double-layer Bailey beam truss (11), and the other end is used for anchoring on the bridge deck.

7. A system for integrated erection of a high pier through bridge as claimed in claim 4 wherein: The support oil cylinder (5) is arranged at the fulcrum of the bottom of the front C hook (10).

8. A system for integrated erection of a high pier through bridge as claimed in claim 4 wherein: The walking system (6) is further arranged at the bottom of the front C hook (10), the walking system (6) includes a rail (60) and a push seat (61) connected to the rail (60), and a hydraulic telescopic rod (62), the rod body of the hydraulic telescopic rod (62) is connected with the push seat (61), and the front C hook (10) is arranged on the push seat (61).

9. A system for integrated erection of a high pier through bridge as claimed in claim 4 wherein: The counterforce rope (7) is connected between the hoist set (2) and the double-layer Bailey beam truss (11).

10. A system for integrated erection of a high pier through bridge as claimed in claim 1 wherein: It also includes a cable wind rope (8), one end of which is connected with the pier bottom, and the other end is used for connecting the bridge erecting machine main frame (20).

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