Guiding assembly device and guiding assembly method for fabricated bridge

Abstract

The application relates to the technical field of bridge assembling, and discloses a guiding assembling device and a guiding assembling method for an assembled bridge. The device respectively comprises a pier column and a prefabricated bent cap, a plurality of guiding devices are arranged in the prefabricated bent cap, a positioning block is connected to the position corresponding to each guiding device in the pier column, a magnetic attraction groove with an open top end is arranged in the positioning block, a guide gap in communication with the magnetic attraction groove is arranged in the upper portion of the positioning block, the guiding device comprises a shell, a guide column is fixedly arranged at the bottom of the shell, a pressure sensor is fixedly arranged at the bottom end of the guide column, the pressure sensor protrudes from the bottom surface of the guide column, and a camera is fixedly arranged at the bottom surface axis position of the guide column. The prefabricated component can be accurately positioned at an accurate position during hoisting through the guiding device, the positioning block and the magnetic attraction groove, the difficulty that the prefabricated component is not easy to operate and difficult to position during hoisting is overcome, the construction process can be simplified, and the construction efficiency is improved.

Description

A guiding assembly device and method for prefabricated bridges Technical Field

[0001] This invention relates to the field of bridge assembly technology, specifically to a guide assembly device and method for prefabricated bridges. Background Technology

[0002] With the advancement of modern urban construction in my country, the application of prefabricated bridges is becoming increasingly widespread. As the name suggests, prefabricated bridge components such as piers, abutments, cap beams, and box girders are manufactured in prefabrication plants and then transported to the construction site for hoisting and assembly into the main body of the bridge. The hoisting of prefabricated components is one of the key steps in the construction of this bridge. After the prefabricated components are hoisted, multiple prefabricated components need to be assembled. In the existing technology, there are already a variety of assembly methods for prefabricated components. For example, patent document with publication number CN110205918A discloses an assembly structure and connection method for prefabricated bridge piles and columns, and patent document with publication number CN111625971B discloses an assembly method for prefabricated components of prefabricated concrete bridges.

[0003] Currently, the existing technology in China mostly uses crawler cranes to lift precast components. Construction personnel observe and direct the gantry crane operators to move the components, and with the help of limit devices, the precast components are assembled. However, due to the large mass and inertia of the precast components, they are prone to twisting when lifted by crawler cranes, affecting the accuracy of the lifting. Summary of the Invention

[0004] The purpose of this invention is to provide a guiding assembly device and method for prefabricated bridges, solving the problem mentioned in the background art where the large mass and inertia of prefabricated components easily lead to torsion during lifting with crawler cranes, affecting the accuracy of prefabricated component lifting. This invention, through a guiding device, positioning blocks, and magnetic grooves, can accurately position the prefabricated components to the correct location during lifting, overcoming the difficulties of operation and positioning during prefabricated component lifting, simplifying construction procedures, and improving construction efficiency. The invention provides the following technical solution:

[0005] A prefabricated bridge guiding assembly device includes a pier and a precast cap beam. Several guiding devices are installed inside the precast cap beam. A positioning block is snapped into the inside of the pier and at the position corresponding to each guiding device. A magnetic suction groove with an open top is fixedly opened inside the positioning block. A guide notch communicating with the magnetic suction groove is fixedly opened on the upper part of the positioning block.

[0006] The guiding device includes a housing, a guide post fixedly mounted on the bottom of the housing, a pressure sensor fixedly mounted on the bottom end of the guide post, the pressure sensor protruding from the bottom surface of the guide post, a camera fixedly mounted at the axial position of the bottom surface of the guide post, a groove fixedly formed inside the guide post, a magnetic field sensor and a ranging probe fixedly mounted inside the groove, a magnetic force generating component built into the guide post, and an electronic control module connected to the magnetic field sensor, the ranging probe and the magnetic force generating component mounted on the top surface of the housing.

[0007] Preferably, the precast cap beam has a reserved hole inside, corresponding to the position of each guiding device, which is adapted to the guide post. The radius of the reserved hole is 1.05 to 1.1 times the radius of the guide post, and the inner wall of the reserved hole is smooth.

[0008] Preferably, the pier column has a positioning slot inside, corresponding to the position of each positioning block. The positioning slot is a T-shaped slot, and the shape of the positioning block is adapted to the shape of the positioning slot.

[0009] Preferably, the cross-sections of the magnetic groove and the guide post are both circular, the radius of the magnetic groove is 1.05 to 1.1 times the radius of the guide post, the cross-section of the guide notch is semi-circular, and the height of the guide notch is 0.5 times the height of the magnetic groove.

[0010] Preferably, the electronic control module includes an electronic control box fixed to the side of the housing. The electronic control box contains a battery, a microcontroller, and a remote control module. A main control switch electrically connected to the microcontroller is fixedly installed on the side of the housing. An indicator light is fixedly installed on the end face of the electronic control box. The ports of the battery, remote control module, indicator light, camera, ranging probe, pressure sensor, and magnetic field sensor are all electrically connected to the microcontroller. The axis of the ranging probe is perpendicular to the axis of the guide post.

[0011] Preferably, the magnetic force generating component includes an iron core installed inside the guide post, the peripheral side of the iron core is wrapped with a coil, and the port of the coil is electrically connected to a microcontroller.

[0012] Preferably, the positioning block is made of iron.

[0013] Preferably, a method for guiding the assembly of a prefabricated bridge assembly device includes the following steps:

[0014] SS01, Pier Prefabrication: Piers are prefabricated in the bridge prefabrication factory. During the prefabrication of piers, a specified number of positioning slots are reserved at the designated positions of the piers. After the piers are prefabricated, positioning blocks are inserted into each positioning slot.

[0015] SS02, Precast cap beams: Precast cap beams are produced in bridge prefabrication plants. During the precasting of cap beams, a specified number of precast holes are reserved at designated locations on the cap beams. When reserving the precast holes, the interior of the precast holes is kept transparent and the inner wall is smooth.

[0016] After steps SS01 and SS02, the pier and precast cap beam are lifted by a crane and placed on the beam transport vehicle. The beam transport vehicle then pulls the pier and precast cap beam to the construction site. Once at the construction site, the crane erects the pier and fixes it in the designated location.

[0017] SS04. After step SS03, a lifting ring is installed in the precast cap beam. After the lifting ring is installed, the crane is connected to the lifting ring. Before the crane lifts the precast cap beam, a guide device is installed in each reserved hole. When the guide device is installed in the reserved hole, the monitoring end of the ranging probe is facing inward. After the guide device is installed, the feedback value of the pressure sensor is pre-calibrated to zero. The operator connects to the microcontroller in real time through an external remote control terminal. The camera's captured image is fed back to the remote control terminal in real time and observed by the construction personnel.

[0018] SS05. Lifting: Construction workers operate the gantry crane to lift the precast cap beam. After the precast cap beam is lifted, the guide column in the guiding device falls freely under the action of gravity. When the monitoring feedback value of the magnetic field sensor is lower than the set threshold, the coil is not energized, and the magnetic force generating component does not generate magnetism. When the position of the guide column reaches the magnetic field range of the magnetic attraction groove, and the monitoring feedback value of the magnetic field sensor is higher than the set threshold, the coil is energized, and the magnetic force generating component generates magnetism. After the magnetic force generating component generates magnetism, it attracts the magnetic attraction groove. When the monitoring value of the ranging probe is higher... When the set value is reached, the indicator light turns red. When the red light is on, the construction worker manipulates the guide column and the magnetic suction groove to move closer together. When the monitoring value of the ranging probe is lower than the set value, that is, after the guide column is magnetically attracted to the magnetic suction groove from the guide notch position, the indicator light turns green. After the green light is on, the construction worker manipulates the precast cap beam to slowly and vertically fall, so that the guide column is deeply inserted into the magnetic suction groove. When the feedback value of the pressure sensor reaches the set value, that is, after the guide column is deeply inserted into the magnetic suction groove in the positioning block, the construction worker drives the precast cap beam to stop falling and maintain the height.

[0019] SS06. Assembly and Fixing: After aligning the connection positions of the precast cap beam and the pier column, install fixing connectors between the precast cap beam and the pier column to fix the relative positions of the precast cap beam and the pier column.

[0020] SS07. After the relative positions of the precast cap beam and the pier column are fixed, the construction workers will pull out the guiding device from the reserved hole in the precast cap beam and retrieve it for reuse during the next assembly.

[0021] Preferably, in steps SS01 and SS02, the curing time of the precast cap beams and piers in the bridge prefabrication plant should be no less than 14 days.

[0022] Preferably, in step SS03, before the precast cap beam and pier are shipped, the splicing surfaces within the range of the pier and precast cap beam are roughened and cleaned to increase the adhesion between the splicing surfaces of the pier and the precast cap beam.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0024] 1. Based on national safety standards and specifications for bridge construction, this invention analyzes the assembly process of prefabricated bridges. Through guiding devices, positioning blocks, and magnetic grooves, prefabricated components can be accurately positioned during hoisting, overcoming the difficulties of operation and positioning of prefabricated components during hoisting, simplifying construction procedures, and improving construction efficiency.

[0025] 2. In this invention, when the guiding device is hoisted to a certain distance from the magnetic suction groove along with the precast cover beam, the iron core in the guiding device is automatically charged and generates magnetic force. The guide column attracts the magnetic suction groove, thereby guiding the precast cover beam to the accurate position in the horizontal direction. Attached Figure Description

[0026] Figure 1 is a structural schematic diagram of the pier column and precast cap beam during assembly;

[0027] Figure 2 is a structural schematic diagram of the precast cap beam;

[0028] Figure 3 is a structural schematic diagram of the pier column;

[0029] Figure 4 is a schematic diagram of the positioning block;

[0030] Figure 5 is a schematic diagram of the guiding device;

[0031] Figure 6 is a schematic diagram of the structure of the shell and guide post;

[0032] Figure 7 is a schematic diagram of the cross-sectional structure of the coil;

[0033] Figure 8 is a schematic diagram of the process structure of a guided assembly method for a prefabricated bridge.

[0034] The components include: 1. Pier column; 2. Precast cap beam; 3. Guiding device; 4. Positioning block; 5. Coil; 6. Iron core; 11. Positioning slot; 21. Reserved hole; 31. Housing; 32. Guide column; 33. Pressure sensor; 34. Camera; 35. Groove; 36. Magnetic field sensor; 37. Distance measuring probe; 38. Electrical control box; 39. Remote control module; 310. Main control switch; 311. Indicator light; 41. Magnetic suction groove; 42. Guide notch. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please refer to Figures 1-8. A prefabricated bridge guide assembly device includes a pier 1 and a precast cap beam 2. Two guide devices 3 are installed inside the precast cap beam 2.

[0037] Inside the pier 1, and at the position corresponding to each guide device 3, a positioning block 4 is engaged, and the positioning block 4 is made of iron.

[0038] The pier 1 has a positioning slot 11 inside and corresponding to the position of each positioning block 4. The positioning slot 11 is a T-shaped slot and the shape of the positioning block 4 is adapted to the shape of the positioning slot 11.

[0039] The positioning block 4 has a magnetic suction groove 41 with an opening at the top fixed inside, and a guide notch 42 communicating with the magnetic suction groove 41 is fixedly opened on the upper part of the positioning block 4.

[0040] Both the magnetic groove 41 and the guide post 32 have a completely circular cross-section;

[0041] The cross-section of the guide notch 42 is semi-circular, and the height of the guide notch 42 is 0.5 times the total height of the magnetic groove 41;

[0042] The guiding device 3 includes a housing 31, a guide post 32 is fixedly installed at the bottom of the housing 31, the radius of the magnetic groove 41 is 1.05 times the radius of the guide post 32, and a pressure sensor 33 is fixedly installed at the bottom end of the guide post 32, the pressure sensor 33 protruding from the bottom surface of the guide post 32.

[0043] Pressure sensor 33 is used to monitor the bottom bearing pressure of guide post 32 in real time;

[0044] A camera 34 is fixedly installed at the bottom axis position of the guide column 32;

[0045] The camera 34 is used to capture images of the bottom of the guide post 32 in real time, thereby facilitating the precise and rapid guidance of the position of the guide post 32.

[0046] A groove 35 is fixedly opened inside the guide post 32. A magnetic field sensor 36 and a ranging probe 37 are fixedly installed inside the groove 35. A magnetic force generating component is built into the guide post 32. An electronic control module that communicates with the magnetic field sensor 36, the ranging probe 37 and the magnetic force generating component is installed on the top surface of the housing 31.

[0047] Inside the precast cap beam 2, corresponding to the position of each guide device 3, there are reserved holes 21 adapted to the guide post 32. The radius of the reserved hole 21 is 1.05 times the radius of the guide post 32, and the inner wall of the reserved hole 21 is smooth.

[0048] The electronic control module includes an electronic control box 38 fixed to the side of the housing 31. The electronic control box 38 contains a battery, a microcontroller, and a remote control module 39. A main control switch 310, which is electrically connected to the microcontroller, is fixedly installed on the side of the housing 31. An indicator light 311 is fixedly installed on the end face of the electronic control box 38. The ports of the battery, the remote control module 39, the indicator light 311, the camera 34, the ranging probe 37, the pressure sensor 33, and the magnetic field sensor 36 are all electrically connected to the microcontroller. The axis of the ranging probe 37 is perpendicular to the axis of the guide post 32.

[0049] The storage battery is used to supply power to the electrical components in this device.

[0050] The microcontroller is used to control the working status of the corresponding electrical components in this device in real time;

[0051] By setting up the remote control module 39, the microcontroller can receive remote control from an external remote controller in real time.

[0052] Indicator light 311 is used to indicate the working status of the corresponding power mechanism in this device;

[0053] The ranging probe 37 is used to monitor the relative distance between the guide post 32 and the magnetic groove 41 in real time;

[0054] The magnetic field sensor 36 is used to monitor the magnetic field strength within a specified range of the guide post 32 in real time;

[0055] The ranging probe 37, magnetic field sensor 36, remote control module 39, microcontroller and pressure sensor 33 can all be customized or selected according to actual needs.

[0056] The magnetic force generating component includes an iron core 6 installed inside the guide post 32, with a coil 5 wrapped around the periphery of the iron core 6, and the port of the coil 5 being electrically connected to a microcontroller.

[0057] When coil 5 is energized, the magnetic force generating component generates magnetism and produces a magnetic attraction force with positioning block 4.

[0058] A method for guiding the assembly of a prefabricated bridge assembly device includes the following steps:

[0059] SS01, Pier Prefabrication: Pier 1 is prefabricated in the bridge prefabrication factory. During the prefabrication of pier 1, a specified number of positioning slots 11 are reserved at the designated position of pier 1. After the pier 1 is prefabricated, a positioning block 4 is inserted into the inside of each positioning slot 11.

[0060] SS02, Precast cap beam: Precast cap beam 2 is precast in the bridge precasting factory. When precast cap beam 2 is precast, a specified number of reserved holes 21 are reserved at the designated position of the precast cap beam 2. When reserving reserved holes 21, the interior of the reserved holes 21 is kept transparent and the inner wall is smooth.

[0061] In steps SS01 and SS02, after the precast cap beam 2 and pier column 1 are precast, the curing time in the bridge precasting plant should not be less than 14 days.

[0062] SS03, after leaving the factory, SS01 and SS02 steps, a crane is used to lift the pier 1 and the precast cap beam 2 and place them on the beam transport vehicle. The beam transport vehicle pulls the pier 1 and the precast cap beam 2 to the construction site. After arriving at the construction site, the crane erects the pier 1 and fixes it in the designated location.

[0063] SS04, hoisting. After step SS03, a lifting ring is installed in the precast cap beam 2. After the lifting ring is installed, the crane is connected to the lifting ring. Before the crane lifts the precast cap beam 2, a guide device 3 is installed in each reserved hole 21. When the guide device 3 is installed in the reserved hole 21, the monitoring end of the ranging probe 37 is facing inward. After the guide device 3 is installed, the feedback value of the pressure sensor 33 is pre-calibrated to zero. The operator connects to the microcontroller in real time through an external remote control terminal. The image captured by the camera 34 is fed back to the remote control terminal in real time and observed by the construction personnel.

[0064] SS05. Lifting: Construction personnel operate the gantry crane to lift the precast cap beam 2. After the precast cap beam 2 is lifted, the guide column 32 in the guide device 3 falls freely under the action of gravity. When the monitoring feedback value of the magnetic field sensor 36 is lower than the set threshold, the coil 5 is not energized, and the magnetic force generating component does not generate magnetism. When the position of the guide column 32 reaches the magnetic field range of the magnetic attraction groove 41, and the monitoring feedback value of the magnetic field sensor 36 is higher than the set threshold, the coil 5 is energized, and the magnetic force generating component generates magnetism. After the magnetic force generating component generates magnetism, it attracts the magnetic attraction groove 41. When the monitoring value of the ranging probe 37 is higher than the set value... When indicator light 311 turns red, the construction worker manipulates the guide column 32 to move closer to the magnetic groove 41. When the monitoring value of the ranging probe 37 is lower than the set value, that is, after the guide column 32 is magnetically attracted to the magnetic groove 41 from the position of the guide notch 42, the indicator light 311 turns green. After the green light turns on, the construction worker manipulates the precast cover beam 2 to slowly and vertically fall, so that the guide column 32 is deeply inserted into the magnetic groove 41. When the feedback value of the pressure sensor 33 reaches the set value, that is, after the guide column 32 is deeply inserted into the magnetic groove 41 in the positioning block 4, the construction worker drives the precast cover beam 2 to stop falling and maintain the height.

[0065] SS06. Assembly and Fixing: After aligning the connection positions of the precast cap beam 2 and the pier column 1, a fixing connector is installed between the precast cap beam 2 and the pier column 1 to fix the relative positions of the precast cap beam 2 and the pier column 1.

[0066] SS07. After the relative positions of the precast cap beam 2 and the pier column 1 are fixed, the construction personnel will pull out the guide device 3 from the reserved hole 21 in the precast cap beam 2 and retrieve it for reuse during the next assembly.

[0067] In step SS03, before the precast cap beam 2 and pier column 1 leave the factory, the splicing surfaces within the range of pier column 1 and precast cap beam 2 are roughened and cleaned to increase the adhesion between pier column 1 and precast cap beam 2.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide assembly device for prefabricated bridges, comprising piers (1) and precast cap beams (2), characterized in that: The precast cap beam (2) is equipped with several guiding devices (3). The pier column (1) is fitted with a positioning block (4) corresponding to the position of each guiding device (3). The positioning block (4) is fixedly provided with a magnetic suction groove (41) with an open top. The upper part of the positioning block (4) is fixedly provided with a guide notch (42) communicating with the magnetic suction groove (41). The guiding device (3) includes a housing (31). The bottom of the housing (31) is fixedly installed with a guide column (32). The bottom end of the guide column (32) is fixedly installed with a pressure sensor (33). The pressure sensor (33) is connected to the guide column (3). 2) The bottom surface protrudes, and a camera (34) is fixedly installed at the bottom axis position of the guide post (32). A groove (35) is fixedly opened inside the guide post (32). A magnetic field sensor (36) and a ranging probe (37) are fixedly installed inside the groove (35). A magnetic force generating component is built into the guide post (32). An electronic control module connected to the magnetic field sensor (36), the ranging probe (37) and the magnetic force generating component is installed on the top surface of the housing (31). The prefabricated cover beam (2) has a reserved space inside corresponding to the position of each guide device (3) that is compatible with the guide post (32). Hole (21), the radius of the reserved hole (21) is 1.05 times to 1.1 times the radius of the guide post (32), and the inner wall of the reserved hole (21) is smooth; a positioning slot (11) is provided inside the pier (1) and corresponding to the position of each positioning block (4), the positioning slot (11) is a T-shaped slot, and the shape of the positioning block (4) is adapted to the shape of the positioning slot (11); the electric control module includes an electric control box (38) fixed to the side of the housing (31), the electric control box (38) has a built-in battery, a microcontroller and a remote control module (39), and the side of the housing (31) is fixedly installed. There is a main control switch (310) that is electrically connected to the microcontroller. An indicator light (311) is fixedly installed on the end face of the electrical control box (38). The ports of the battery, remote control module (39), indicator light (311), camera (34), ranging probe (37), pressure sensor (33) and magnetic field sensor (36) are all electrically connected to the microcontroller. The axis of the ranging probe (37) is perpendicular to the axis of the guide post (32). The magnetic force generating component includes an iron core (6) installed inside the guide post (32). The peripheral side of the iron core (6) is wrapped with a coil (5). The port of the coil (5) is electrically connected to the microcontroller.

2. The prefabricated bridge guiding assembly device according to claim 1, characterized in that: The cross-sections of the magnetic groove (41) and the guide post (32) are both circular. The radius of the magnetic groove (41) is 1.05 to 1.1 times the radius of the guide post (32). The cross-section of the guide notch (42) is semi-circular. The height of the guide notch (42) is 0.5 times the height of the magnetic groove (41).

3. The prefabricated bridge guiding assembly device according to claim 1, characterized in that: The positioning block (4) is made of iron.

4. The method for guiding and assembling a prefabricated bridge according to any one of claims 1-3, characterized in that, Includes the following steps: SS01. Pier Prefabrication: Piers (1) are prefabricated in the bridge prefabrication plant. During the prefabrication of piers (1), a specified number of positioning slots (11) are reserved at the designated positions of piers (1). After the piers (1) are prefabricated, positioning blocks (4) are inserted into each positioning slot (11). SS02. Cap Beam Prefabrication: Prefabricated cap beams (2) are prefabricated in the bridge prefabrication plant. During the prefabrication of cap beams (2), a specified number of reserved holes (21) are reserved at the designated positions of cap beams (2). When reserving the reserved holes (21), the interior of the reserved holes (21) is kept transparent and the inner wall is smooth. SS03. Shipment: After steps SS01 and SS02, a crane is used to lift the piers (1) and the prefabricated cap beams (2). And place it on the beam transport vehicle. The beam transport vehicle pulls the pier (1) and the precast cap beam (2) to the construction site. After arriving at the construction site, the crane erects the pier (1) and fixes it in the designated location; SS04, hoisting, after the SS03 steps, a lifting ring is added to the precast cap beam (2). After the lifting ring is added, the crane is connected to the lifting ring. Before the crane lifts the precast cap beam (2), a guide device (3) is added to each reserved hole (21). When the guide device (3) is installed in the reserved hole (21), the monitoring end of the ranging probe (37) is facing inward. After the guide device (3) is installed, the feedback value of the pressure sensor (33) is pre-calibrated to zero. The operator connects to the microcontroller in real time through the external remote control terminal. The camera (34) collects data. The image is fed back to the remote control terminal in real time and observed by the construction personnel; SS05, hoisting, the construction personnel operate the gantry crane to lift the precast cap beam (2). After the precast cap beam (2) is lifted, the guide column (32) in the guide device (3) falls freely under the action of gravity. When the monitoring feedback value of the magnetic field sensor (36) is lower than the set threshold, the coil (5) is not energized and the magnetic force generating component does not generate magnetism. When the position of the guide column (32) reaches the magnetic field range of the magnetic suction groove (41) and the monitoring feedback value of the magnetic field sensor (36) is higher than the set threshold, the coil (5) is energized and the magnetic force generating component generates magnetism. After the magnetic force generating component generates magnetism, it attracts the magnetic suction groove (41). When the monitoring of the ranging probe (37) When the value is higher than the set value, the indicator light (311) lights up red. When the red light is on, the construction personnel control the guide column (32) and the magnetic suction groove (41) to move closer. When the monitoring value of the distance measuring probe (37) is lower than the set value, that is, after the guide column (32) is magnetically attracted to the magnetic suction groove (41) from the position of the guide notch (42), the indicator light (311) lights up green. After the green light is on, the construction personnel control the precast cap beam (2) to fall slowly and vertically, and then make the guide column (32) go deep into the magnetic suction groove (41). When the feedback value of the pressure sensor (33) reaches the set value, that is, after the guide column (32) goes deep into the magnetic suction groove (41) in the positioning block (4), the construction personnel drive the precast cap beam (2) to stop falling and maintain the height.SS06. Assembly and Fixing: After aligning the connection positions of the precast cap beam (2) and the pier column (1), a fixing connector is installed between the precast cap beam (2) and the pier column (1) to fix their relative positions. SS07. Recycling: After the relative positions of the precast cap beam (2) and the pier column (1) are fixed, the construction personnel pull out the guide device (3) from the reserved hole (21) in the precast cap beam (2) and recycle it for reuse during the next assembly.

5. The guided assembly method of the prefabricated bridge guided assembly device according to claim 4, characterized in that: In steps SS01 and SS02, after the precast cap beam (2) and pier column (1) are precast, the curing time in the bridge precasting plant should not be less than 14 days.

6. The guided assembly method of the prefabricated bridge guided assembly device according to claim 4, characterized in that: In step SS03, before the precast cap beam (2) and pier (1) leave the factory, the splicing surfaces within the range of the pier (1) and precast cap beam (2) are roughened and cleaned to increase the adhesion between the splicing surfaces of the pier (1) and the precast cap beam (2).

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