A reinforcing device for a steel structure bridge design joint

Abstract

The application discloses a steel structure bridge design node reinforcing device, and relates to the technical field of bridge reinforcing devices, which comprises a support frame provided with a walking system and a box-shaped frame structure, a string body containing assembly, a guide limiting assembly, a load-bearing string assembly and a clamping and lifting assembly. The guide limiting assembly comprises a guide pipe body, a guide block, an extrusion driving wheel and a limiting pin. One end of the load-bearing string assembly is fixed on a winding assembly and comprises a load-bearing column and a connecting rope. The load-bearing column is provided with a penetrating hole and a guide groove is arranged on the side wall. The guide groove is internally provided with a penetrating groove. The connecting rope connects the load-bearing columns into a string. A jacking assembly is positioned on the top of the load-bearing column at the topmost part. The clamping and lifting assembly is mainly an electric clamp body, which is fixed with a pedal and a counterweight. The steel structure bridge design node reinforcing device can efficiently assist the bridge reinforcing process, has strong passability, is convenient to move and can be applied to bridges with various heights.

Description

Technical Field

[0001] This invention relates to the field of bridge reinforcement device technology, and in particular to a reinforcement device for design nodes of steel structure bridges. Background Technology

[0002] Bridges need to be reinforced to continue to be used due to aging, design flaws, or poor construction quality. Reinforcement involves taking certain measures to improve the load-bearing capacity and performance of components and the entire structure to meet new requirements. After bridge reinforcement, the service life of the bridge can be extended, the bridge can meet traffic demand with a small amount of investment, and the loss of life and property caused by bridge collapse can be prevented and avoided.

[0003] In existing technologies, adding support points (new load-bearing columns) at design nodes is widely used due to its high reliability and minimal damage to the original bridge structure. After adding load-bearing columns, the bridge load is redistributed, easing the original load and significantly improving the bridge's load-bearing capacity and bending stiffness. When constructing new load-bearing columns (new piers), the pier columns are generally spliced ​​and installed after the pier abutment is installed, with the pier top installed last. The pier column is composed of multiple columnar pier units 001 spliced ​​together, such as... Figure 13 As shown, the pier unit 001 includes a bearing pipe 010 and an annular plate 020; the bearing pipe 010 is a steel pipe, and there are two annular plates 020, which are fixed on the outer side walls of the bearing pipe 010 near both ends; multiple assembly holes 021 are evenly distributed on the annular plate 020; when assembling the pier, the assembly holes 021 on different pier units 001 are first aligned, and then bolts are used to fix adjacent pier units 001 together; however, in the actual construction process, due to the limitation of the location of the new pier (the new pier must be built below the bridge deck), the splicing and installation of the pier and the installation of the pier top are extremely inconvenient. Simply using a crane to assist in construction will lead to greater construction difficulty due to the limitations of the bridge deck, which will seriously affect the construction efficiency. Moreover, when the spliced ​​pier is subjected to rust removal and painting, scaffolding needs to be erected around the new pier, which is a complicated and time-consuming process.

[0004] Therefore, there is a need for a steel structure bridge design node reinforcement device that can efficiently assist in bridge reinforcement, has strong passability, is easy to move, is applicable to bridges of various heights, and has high construction efficiency during reinforcement. Summary of the Invention

[0005] This application provides a steel structure bridge design node reinforcement device, which solves the technical problems of low construction efficiency caused by the construction of new bridge piers being limited by the bridge deck during bridge reinforcement in the prior art. The device achieves the technical effects of efficiently assisting bridge reinforcement, having strong passability, convenient mobility, and applicability to bridges of various heights.

[0006] The embodiment of the application provides a steel structure bridge design node reinforcing device, which comprises a support frame provided with a walking system and a box-shaped frame structure, a string containing assembly composed of a cylindrical container and a winding assembly and fixed on the support frame, a guide limiting assembly, a load-bearing string assembly and a clamping lifting assembly;

[0007] The guide limiting assembly comprises a guide pipe body vertically arranged and fixed at the bottom of the support frame, a guide block in a rod shape and fixed on the inner wall of the guide pipe body, and an extrusion driving wheel and a limiting pin which are rotatably connected to the guide pipe body.

[0008] The limiting pin is an electric pin fixed on the guide pipe body.

[0009] The load-bearing string assembly is fixed at one end of the winding assembly and comprises a load-bearing column and a connecting rope; the load-bearing column is a hard cylindrical block, which is provided with a penetrating hole and a guide groove on the side wall and is fixed with permanent magnets at the top and the bottom; the guide groove is provided with an elongated circular penetrating groove; and the connecting rope connects all the load-bearing columns into a string.

[0010] The top of the load-bearing column located at the topmost position is provided with a jacking assembly, and the top of the jacking assembly is fixed with a rubber block.

[0011] The clamping lifting assembly moves up and down along the columnar body spliced by the load-bearing columns, and the main body is an electric clamp body, which is fixed with a pedal and a counterweight.

[0012] Further, the length of the penetrating groove is more than four-fifths of the length of the guide groove, and the length is greater than the distance between the two limiting pins on the guide pipe body.

[0013] The distance between the penetrating grooves on the adjacent two load-bearing columns is less than the distance between the two limiting pins on the guide pipe body.

[0014] Further, the clamping lifting assembly comprises a sliding pipe, a rotating pipe, a rotating driving assembly, an electric clamp body and a clamp displacement assembly.

[0015] The sliding pipe is a hard pipe body sleeved on the columnar body spliced by the load-bearing columns, and is provided with more than three extrusion driving wheels and two limiting pins.

[0016] The rotating pipe is sleeved and rotatably connected to the sliding pipe and rotates around its own axis under the driving of the rotating driving assembly.

[0017] The electric clamp body is an electric clamp with a main body in the shape of a Chinese character, which is positioned on the side wall of the rotating pipe through the clamp displacement assembly.

[0018] Further, the clip displacement assembly comprises a transversely arranged guide rail, a sliding block, and a bearing telescopic rod fixed on the sliding block;

[0019] The guide rail is fixed on the rotating tube and has a length direction perpendicular to the axial direction of the rotating tube;

[0020] The sliding block is slidably positioned on the guide rail under the control of the control unit;

[0021] The bearing telescopic rod is an electric telescopic rod, and both ends thereof are fixed on the electric clip body and the sliding block respectively, and the axial direction is perpendicular to the length direction of the guide rail and the axial direction of the rotating tube, and the telescopic rod is controlled to be telescoped under the control of the control unit;

[0022] A soft floating plate is fixed on the surface of the electric clip body for clamping the pier unit, and the floating plate is an arc-shaped rubber plate for adapting to pier units with different diameters.

[0023] Preferably, the string body containing assembly is detachable and can be transported to a target position separately from the support frame.

[0024] Preferably, a sliding plate is slidably positioned on the floating plate, and the sliding plate is driven to slide under the drive of the plate body pulling assembly;

[0025] The plate body pulling assembly is positioned on the electric clip body, and is a combination of a rope fixed on the sliding plate, a rotating column abutting against the rope, and a guide wheel for guiding and reversing, the rotating column is driven to rotate to drive the rope to move and then pull the sliding plate to move, so that the clamped pier unit is rotated around the axial line thereof.

[0026] Preferably, the lifting stabilizing assembly further comprises a connecting column;

[0027] The bearing column is internally provided with a column internal passage, and the inlet and outlet of the column internal passage are respectively located at the top end and the bottom end of the bearing column;

[0028] The column internal passage is rod-shaped and has a whole φ shape;

[0029] The lifting stabilizing assembly comprises a connecting column;

[0030] The connecting column is located between the bearing column and the jacking assembly, is hollow internally, and is internally fixed with a pump air assembly;

[0031] The bottom of the connecting column is fixed with an expanding and stabilizing capsule, the expanding and stabilizing capsule is an elastic rubber capsule body in a strip shape, and penetrates each bearing column through the column internal passage;

[0032] The top of the expanding and stabilizing capsule is in communication with the pump air assembly, and the pump air assembly is a combination of an air pump and a valve body;

[0033] During the lifting of the bearing column, the pump gas assembly is controlled to operate to expand the stable balloon, and the stable balloon is expanded to gradually fill the channel in the column, thereby improving the overall stability and reducing the dislocation during the splicing of the bearing column.

[0034] Preferably, the lifting and stabilizing assembly further comprises three pulling winches, including winch assemblies and pulling ropes.

[0035] One end of the pulling rope is fixed to the connecting column, and the other end is fixed to the winch assembly;

[0036] Before the lifting of the bearing string assembly, the winch assembly is first fixed to the ground around the support frame, and the pulling rope is gradually released as the bearing string assembly rises;

[0037] After the rubber block contacts the bridge, the pulling rope is removed from the connecting column.

[0038] Preferably, the side wall of the connecting column is evenly distributed with three positioning fins with a length greater than 50 cm;

[0039] The lifting and stabilizing assembly further comprises three pulling winches, including winch assemblies and pulling ropes.

[0040] One end of the pulling rope is fixed to the end of the positioning fin away from the connecting column, and the other end is fixed to the winch assembly;

[0041] The winch assembly is used to wind and release the pulling rope;

[0042] The side wall of the guide pipe body is further provided with a rotating frame for bearing and fixing the winch assembly, which rotates around the axis of the guide pipe body under the control of the control unit;

[0043] When the bearing string assembly rises, the winch assembly gradually releases the pulling rope as the bearing string assembly rises;

[0044] When the rotating pipe of the clamping and lifting assembly rotates, the rotating frame rotates synchronously with the rotating pipe, ensuring that the existence of the pulling rope does not hinder the assembly of the pier column unit.

[0045] Preferably, the pier column unit comprises a bearing pipe and an annular plate;

[0046] The bearing pipe is a steel pipe, and the number of annular plates is two, which are fixed to the inner side walls near the two ends of the bearing pipe;

[0047] The upper annular plate is evenly distributed with a plurality of assembly holes, and the bottom of the lower annular plate is fixed with a plurality of penetrating rods corresponding to the assembly holes;

[0048] The length of the penetrating rod is greater than 20 cm.

[0049] When assembling the pier column, first, the penetrating rod of the upper pier column unit is inserted into the assembly hole of the lower pier column unit;

[0050] The top of the topmost pier column unit is positioned with a top cover plate;

[0051] The pier column unit is provided with a closed ring, which is an elastic ring body made of rubber. After the construction of the pier column is completed, a layer of glue is uniformly sprayed on the inner wall thereof, and then a strip-shaped elastic bag is placed in the pier column. Then, the elastic bag is inflated by using a pump assembly to fill the internal space of the pier column and fixed on the inner wall of the pier column, thereby reducing the risk of rust in the pier column;

[0052] Before painting, the closed ring is moved to the joint between the pier column units to block the joint, and finally painting is performed.

[0053] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0054] By providing a lifting type steel structure bridge design node reinforcement device, a support column for bearing and clamping the lifting assembly is quickly constructed by the string variable column mode of the support assembly, the clamping and moving of the steel pier column unit for building a pier is clamped and moved by the clamping and lifting assembly, and the construction of the pier is completed. The technical problem of low construction efficiency caused by the difficulty of new pier construction due to the limitation of the bridge deck, the complicated construction process and the long construction time in the prior art is effectively solved. The technical effect of the steel structure bridge design node reinforcement device is achieved, which can efficiently assist the bridge reinforcement, has strong passing performance, is convenient to move, and can be applied to bridges of various heights. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 It is a schematic diagram of the overall structure of the steel structure bridge design node reinforcement device;

[0056] Figure 2 It is a schematic diagram of the position relationship between the guide limiting assembly and the support frame;

[0057] Figure 3 It is a schematic diagram of the position relationship between the guide limiting assembly and the bearing string assembly;

[0058] Figure 4 It is a schematic diagram of the appearance structure of the bearing column;

[0059] Figure 5 It is a structural diagram of the bearing column;

[0060] Figure 6 It is a schematic diagram of the end surface structure of the bearing column;

[0061] Figure 7Figure 7 Structure diagram of the guide limiting assembly;

[0062] Figure 8 Structure diagram of the clamping lifting assembly;

[0063] Figure 9 Structure diagram of the load bearing string assembly;

[0064] Figure 10 Structure diagram of the electric clamp body;

[0065] Figure 11 Schematic diagram of the position relationship between the connecting column and the air pumping assembly;

[0066] Figure 12 Schematic diagram of the longitudinal section of the load bearing column;

[0067] Figure 13 Structure diagram of the pier column unit;

[0068] Figure 14 Schematic diagram of the position relationship between the annular plate and the load bearing tube;

[0069] Figure 15 Schematic diagram of the position relationship between the top cover plate and the annular plate.

[0070] In the drawings:

[0071] Pier column unit 001, load bearing tube 010, annular plate 020, assembly hole 021, penetrating rod 022, closed ring 030, top cover plate 040, support frame 100, walking system 110, columnar container 210, winding assembly 220, guide tube body 310, guide block 320, extrusion driving wheel 330, limiting pin 340, load bearing string assembly 400, load bearing column 410, penetrating hole 411, guide groove 412, penetrating groove 413, column inner passage 414, rubber block 510, jacking assembly 520, clamping lifting assembly 600, sliding tube 610, rotating tube 620, rotating driving assembly 630, electric clamp body 640, floating plate 641, sliding plate 642, plate body pulling assembly 643, clamp displacement assembly 650, pedal 660, connecting column 710, positioning fin plate 711, air pumping assembly 712, swelling stabilizing bag 713, pulling winch 720, rotating frame 730. DETAILED DESCRIPTION

[0072] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the application are shown. The application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0073] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0075] Example 1

[0076] like Figures 1 to 9 As shown, the steel structure bridge design node reinforcement device of this application includes a support frame 100, a string-containing assembly, a guide and limiting assembly, a load-bearing string assembly 400, a clamping and lifting assembly 600, a power assembly, and a control unit.

[0077] The support frame 100 is a box-shaped frame structure, which serves to support and position the load. It is equipped with a walking system 110, and has a string channel inside for the bearing string assembly 400 to pass through. The walking system 110 is a tracked structure, a three-wheeled or four-wheeled walking system, used to drive the support frame 100 to move.

[0078] The string-carrying assembly is used to carry and accommodate the string-carrying assembly 400, including a cylindrical container 210 and a winding assembly 220 positioned on the cylindrical container 210 for winding the string-carrying assembly 400; the cylindrical container 210 is generally cylindrical, hollow inside, fixed on the support frame 100 and located on one side or top of the support frame 100, and the internal space of the cylindrical container 210 is connected to the string-carrying channel; the winding assembly 220 is a drum structure with a built-in motor, which rotates in a timely manner under the control of the control unit to wind up the string-carrying assembly 400.

[0079] Preferably, the string housing assembly is detachable and can be transported separately from the support frame 100 to the target location.

[0080] The guide limiting component is used for guiding and limiting the downward movement of the bearing string assembly 400, and comprises a guide pipe body 310, a guide block 320, an extrusion driving wheel 330 and a limiting pin 340. The guide pipe body 310 is a vertical hard pipe body, the inner diameter of which is 1.3 times or more of the diameter of the circumscribed circle of the cross section of the bearing column 410, and the bottom is fixed on the support frame 100 and communicates with the string body channel. The guide block 320 is a vertical hard rod-shaped block, which is fixed on the inner wall of the guide pipe body 310 and is used for guiding the movement of the bearing string assembly 400. The extrusion driving wheel 330 is rotationally connected to the guide pipe body 310, the axis of the rotation shaft is perpendicular to the axis of the guide pipe body 310, and the number of the extrusion driving wheels 330 is three or more and is uniformly distributed on the circumference of the guide pipe body 310. At least one of the extrusion driving wheels 330 is provided with a built-in motor, the extrusion driving wheel 330 is a cylindrical wheel body covered with a rubber layer, and is always in close contact with the bearing column 410 during use. When the extrusion driving wheel 330 rotates, the bearing column 410 is driven to move upward by friction. The limiting pin 340 is an electric pin, which is fixed on the guide pipe body 310, and the number of the limiting pins 340 on the guide pipe body 310 is two. The limiting pins 340 are used for limiting the movement of the bearing column 410 by being inserted into the penetrating slot 413 of the bearing column 410 in the form of elongation. The distance between the two limiting pins is less than the length of the penetrating slot 413.

[0081] The bearing string assembly 400 is used for bearing the clamping and lifting assembly 600, and is in the form of a string, one end of which is fixed on the winding assembly 220, and comprises a bearing column 410 and a connecting rope. The bearing column 410 is a hard cylindrical block, and one or more penetrating holes 411 for the connecting rope to penetrate are arranged on the bearing column 410. The penetrating hole 411 is a through hole, and the length direction of the penetrating hole 411 is the same as the axis direction of the bearing column 410. The length of the bearing column 410 is less than two-thirds of the length of the guide pipe body 310. A vertical guide slot 412 matched with the guide block 320 is arranged on the side wall of the bearing column 410. The length of the guide slot 412 is the same as the length of the bearing column 410. A long circular penetrating slot 413 is arranged in the guide slot 412, the length of the penetrating slot 413 is more than four-fifths of the length of the guide slot 412, and the length of the penetrating slot 413 is greater than the distance between the two limiting pins 340 on the guide pipe body 310. The distance between the penetrating slots 413 on the adjacent two bearing columns 410 is less than the distance between the two limiting pins 340 on the guide pipe body 310. Permanent magnets are fixed on the top and bottom of the bearing column 410. The penetrating slot 413 is used for inserting the limiting pin 340. The connecting rope is a steel wire rope, and the length of the connecting rope is more than 1.1 times of the total length of all the bearing columns 410. All the bearing columns 410 are connected into a string, and the two ends of the connecting rope are fixed on the bearing columns 410 at the two ends.

[0082] The top of the bearing column 410 is positioned with a jacking assembly 520, and the top of the jacking assembly 520 is fixed with a rubber block 510; the jacking assembly 520 is used to adjust the distance between the rubber block 510 and the bearing column 410, and is a telescopic rod (or telescopic column) structure; the rubber block 510 is used to abut against the bottom of the bridge; the bearing column 410 or the jacking assembly 520 is provided with a hanging ring for fixing a safety rope.

[0083] The clamping lifting assembly 600 is used to fix and move the pier column unit 001 in a clamping manner, and moves up and down on the columnar body spliced by the bearing columns 410 under the control of the control unit; the clamping lifting assembly 600 comprises a sliding pipe 610, a rotating pipe 620, a rotating drive assembly 630, an electric clamp body 640 and a clamp displacement assembly 650; the sliding pipe 610 is a hard pipe body sleeved on the columnar body spliced by the bearing columns 410, and is provided with three or more than three extrusion drive wheels 330 and two limiting pins 340; the limiting pins 340 and the extrusion drive wheels 330 are arranged on the sliding pipe 610 in the same manner (same spacing, etc.) as the arrangement of the limiting pins 340 and the extrusion drive wheels 330 on the guide pipe body 310; the rotating pipe 620 is sleeved and rotationally connected on the sliding pipe 610, and rotates around its own axis under the driving of the rotating drive assembly 630; the structure of the rotating drive assembly 630 is preferably a combination of a motor, a gear and a gear ring; the electric clamp body 640 is an electric clamp with a main body in the shape of a Chinese character, and is positioned on the side wall of the rotating pipe 620 through the clamp displacement assembly 650; the rotating pipe 620 is further fixed with a pedal 660 and a counterweight; the clamp displacement assembly 650 comprises a transversely arranged guide rail, a sliding block and a bearing telescopic rod fixed on the sliding block; the guide rail is fixed on the rotating pipe 620, and the length direction is perpendicular to the axial direction of the rotating pipe 620; the sliding block is slidingly positioned on the guide rail under the control of the control unit; the bearing telescopic rod is an electric telescopic rod, and two ends thereof are respectively fixed on the electric clamp body 640 and the sliding block, and the axial direction is perpendicular to the length direction of the guide rail and the axial direction of the rotating pipe 620, and the bearing telescopic rod is controlled to be telescopic under the control of the control unit; the electric clamp body 640 is fixed with a soft floating plate 641 on the surface for clamping the pier column unit 001, and the floating plate 641 is an arc-shaped rubber plate, which is used to adapt to pier column units 001 with different diameters.

[0084] The power assembly is used to provide power for the operation of each component of the steel structure bridge design node reinforcing device, and the control unit is used to control the coordinated operation of each component of the steel structure bridge design node reinforcing device, which are both prior arts and will not be described herein.

[0085] Preferably, the control unit is a combination of a programmable logic controller and a control button.

[0086] Preferably, to further facilitate the movement of the pier unit 001 and the adjustment of the assembly hole 021, such as... Figure 10 As shown, a sliding plate 642 is slidably positioned on the floating plate 641. The sliding plate 642 slides under the drive of the plate pulling assembly 643. The plate pulling assembly 643 is positioned on the electric clamp body 640 and is a combination of a rope fixed on the sliding plate 642, a rotating column abutting the rope, and a guide wheel that guides the reversal. The rotation of the rotating column drives the rope to move, thereby pulling the sliding plate 642 to move, and thus causing the clamped pier column unit 001 to rotate around its own axis.

[0087] In actual use, the steel structure bridge design node reinforcement device of this application first constructs the pier at the planned location on the ground under the bridge; then, the steel structure bridge design node reinforcement device of this application is used to construct the pier column. The construction steps of the pier column are as follows:

[0088] 1. Move the support frame 100 to a position close to the pier; then control the extrusion drive wheel 330 and the limit pin 340 in the guide tube 310 to ensure that at least one limit pin 340 on the guide tube 310 is always inserted in the insertion groove 413; and make the rubber block 510 gradually rise.

[0089] 2. When the rubber block 510 moves to a position close to the bottom of the bridge (at this time, by controlling the rotation of the extrusion drive wheel 330 so that one of the limit pins 340 abuts against the top of the insertion groove 413, thereby ensuring the stabilizing effect), control the operation of the lifting component 520 so that the rubber block 510 abuts against the bottom of the bridge and deforms.

[0090] 3. Controlling the operation of the winding assembly 220 ensures that the support columns 410 above the guide tube 310 are all tightly fitted together (ensuring stability);

[0091] 4. Use a truck-mounted crane or forklift to clamp and fix the pier unit 001 onto the electric clamp body 640, and then control the clamping and lifting assembly 600 to splice the pier units 001 one by one; workers can climb onto the footboard 660 to assist in completing the splicing work.

[0092] 5. The installation of the pier top is completed using the clamping and lifting assembly 600;

[0093] 6. Workers can climb onto the 660-foot platform to perform rust removal and painting operations;

[0094] 7. Reset all components of the steel structure bridge design node reinforcement device and drive it away from under the bridge.

[0095] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0096] The technical problems of low construction efficiency caused by great construction difficulty, complicated construction process and long construction time due to the limitation of the bridge deck in the construction of new pier during the bridge reinforcement in the prior art are solved; the technical effects that the steel structure bridge design node reinforcement device can efficiently assist the bridge reinforcement, has strong passability, is convenient to move and can be applied to bridges with various heights are achieved.

[0097] Embodiment two

[0098] In order to further improve the stability of the bearing string assembly 400 during splicing and rising, the structure of the bearing string assembly 400 is optimized and improved based on the above embodiment, and a lifting stability assembly is additionally arranged; specifically,

[0099] As shown in Figure 11 and Figure 12 , the bearing column 410 is internally provided with a column internal passage 414, and the entrance and exit of the column internal passage 414 are respectively located at the top end and the bottom end of the bearing column 410; the column internal passage 414 is rod-shaped and has a whole φ shape;

[0100] The lifting stability assembly comprises a connecting column 710; the connecting column 710 is located between the bearing column 410 and the jacking assembly 520, is hollow inside and internally fixed with a pump air assembly 712; the bottom of the connecting column 710 is fixed with a swelling stability bag 713, the swelling stability bag 713 is an elastic rubber bag body in a strip shape, penetrates each bearing column 410 through the column internal passage 414; the top of the swelling stability bag 713 is in communication with the pump air assembly 712, and the pump air assembly 712 is a combination of an air pump and a valve body; during the rising process of the bearing column 410, the swelling stability bag 713 is expanded by controlling the pump air assembly 712 to operate, and the column internal passage 414 is gradually filled during the expansion of the swelling stability bag 713, thereby improving the overall stability and reducing the misalignment during the splicing process of the bearing column 410.

[0101] In order to further improve the stability of the bearing string assembly 400 during splicing and rising, preferably, the lifting stability assembly further comprises a pulling winch 720, the number of the pulling winch 720 is three, and the pulling winch 720 comprises a winch assembly and a pulling rope; one end of the pulling rope is fixed to the connecting column 710, and the other end is fixed to the winch assembly; the winch assembly is used for winding and releasing the pulling rope; before the bearing string assembly 400 rises, the winch assembly is first fixed to the ground around the support frame 100, and the pulling rope is gradually released as the bearing string assembly 400 rises; after the rubber block 510 abuts against the bridge, the pulling rope is removed from the connecting column 710.

[0102] Preferably, in order to reduce the labor intensity of the workers while ensuring the stability of the bearing string assembly 400 during splicing and rising, the arrangement and dismounting process of the pulling winch 720 are omitted; as Figure 1As shown, the side wall of the connecting column 710 is uniformly distributed with three positioning fins 711 with a length greater than 50 cm; the lifting and stabilizing assembly further comprises a pulling winch 720, the number of which is three, including a winch assembly and a pulling rope; one end of the pulling rope is fixed to the end of the positioning fin 711 away from the connecting column 710, and the other end is fixed to the winch assembly; the winch assembly is used to wind and release the pulling rope; the side wall of the guide pipe body 310 is further provided with a rotating frame 730 for carrying and fixing the winch assembly, which rotates around the axis of the guide pipe body 310 under the control of the control unit; the winch assemblies are uniformly distributed on the circumference of the guide pipe body 310 and are fixed on the rotating frame 730, and the spacing between the winch assemblies is greater than 1.5 meters; when the carrying string assembly 400 rises, the winch assembly gradually releases the pulling rope as the carrying string assembly 400 rises; when the rotating pipe 620 of the clamping and lifting assembly 600 rotates, the rotating frame 730 rotates synchronously with the rotating pipe 620, ensuring that the presence of the pulling rope does not hinder the assembly of the pier column unit 001.

[0103] In order to improve the corrosion prevention effect of the pier column, as shown in Figure 14 and Figure 15 As shown, the pier column unit 001 comprises a carrying pipe 010 and an annular plate 020; the carrying pipe 010 is a steel pipe body, and the number of annular plates 020 is two, which are fixed to the inner side walls near the two ends of the carrying pipe 010; a plurality of assembly holes 021 are uniformly distributed on the upper annular plate 020, and a plurality of penetrating rods 022 corresponding to the assembly holes 021 are fixed to the bottom of the lower annular plate 020; the length of the penetrating rod 022 is greater than 20 cm; when the pier column is assembled, first, the penetrating rod 022 of the upper pier column unit 001 is inserted into the assembly hole 021 of the lower pier column unit 001; the top of the topmost pier column unit 001 is positioned with a top cover plate 040; the pier column unit 001 is provided with an enclosed ring 030, which is an elastic ring body made of rubber material; after the construction of the pier column is completed, a layer of glue is uniformly sprayed on the inner wall, then a strip-shaped elastic bag is placed in the pier column, and then a pump assembly 712 is used to inflate the elastic bag to fill the internal space of the pier column (for a certain period of time) and fix it on the inner wall of the pier column, reducing the risk of rust in the pier column; before painting, the enclosed ring 030 is moved to the joint between the pier column units 001 to block the joint, and finally painting is performed.

[0104] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A steel structure bridge design joint reinforcement device, characterized in that: The support frame comprises a box-shaped frame structure and a walking system, a string body containing assembly composed of a cylindrical container and a winding assembly and fixed on the support frame, a guide limiting assembly, a load string assembly and a clamping lifting assembly; The guide limiting assembly comprises a guide pipe body vertically arranged and fixed at the bottom of the support frame, a guide block in the shape of a rod and fixed on the inner wall of the guide pipe body, three or more than three extrusion drive wheels rotationally connected to the guide pipe body and limiting pins; The limiting pins are electric pins fixed on the guide pipe body; One end of the load string assembly is fixed on the winding assembly and comprises load columns and connecting ropes; the load columns are hard cylindrical blocks, provided with penetrating holes and guide grooves on the side walls, and fixed with permanent magnets at the top and bottom; the guide grooves are internally provided with long circular penetrating grooves; the connecting ropes string all the load columns into a string; The top of the load column located at the top is provided with a jacking assembly, and the top of the jacking assembly is fixed with a rubber block; The clamping lifting assembly moves up and down along the columnar body spliced by the load columns, and the main body is an electric clip body, which is fixed with a pedal and a counterweight; The clamping lifting assembly comprises a sliding pipe, a rotating pipe, a rotating drive assembly, an electric clip body and a clip displacement assembly; The sliding pipe is a hard pipe body sleeved on the columnar body spliced by the load columns, and is provided with three or more than three extrusion drive wheels and two limiting pins; The rotating pipe is sleeved and rotationally connected to the sliding pipe, and rotates around its own axis under the drive of the rotating drive assembly; The electric clip body is an electric clip with a main body in the shape of a Chinese character, which is positioned on the side wall of the rotating pipe through the clip displacement assembly; The clip displacement assembly comprises a horizontally arranged guide rail, a sliding block and a load telescopic rod fixed on the sliding block; The guide rail is fixed on the rotating pipe and has a length direction perpendicular to the axial direction of the rotating pipe; The sliding block is slidingly positioned on the guide rail under the control of a control unit; The load telescopic rod is an electric telescopic rod, and both ends thereof are fixed on the electric clip body and the sliding block respectively, and the axial direction is perpendicular to the length direction of the guide rail and the axial direction of the rotating pipe, and the load telescopic rod is controlled to be telescopic under the control of the control unit; A soft floating plate is fixed on the surface of the electric clip body for clamping the pier column unit, and the floating plate is an arc-shaped rubber plate for adapting to pier column units with different diameters; A sliding plate is slidingly positioned on the floating plate, and the sliding plate is slidingly driven by a plate body pulling assembly; The plate body pulling assembly is positioned on the electric clip body, and is a combination of a rope fixed on the sliding plate, a rotating column abutting against the rope and a guide wheel playing a guiding and reversing role; the rotation of the rotating column drives the rope to move and then pull the sliding plate to move, so that the clamped pier column unit rotates around its own axis; the pier column unit comprises a load pipe and an annular plate; The load pipe is a steel pipe body, and the number of annular plates is two, which are fixed on the inner side walls of the load pipe near the two ends; A plurality of assembly holes are uniformly distributed on the upper annular plate, and a plurality of penetrating rods corresponding to the assembly holes are fixed on the bottom of the lower annular plate; The length of the penetrating rod is greater than 20 cm. When assembling the pier column, first, the penetrating rod of the upper pier column unit is inserted into the assembly hole of the lower pier column unit; The top of the topmost pier column unit is positioned with a top cover plate; The pier column unit is provided with an enclosed ring, which is an elastic ring body made of rubber material; after the construction of the pier column is completed, a layer of glue is evenly sprayed on the inner wall of the pier column, and then a strip-shaped elastic capsule is placed in the pier column, and then the elastic capsule is inflated by using the pump assembly to fill the internal space of the pier column and is fixed on the inner wall of the pier column, thereby reducing the risk of rust in the pier column; Before painting, the enclosed ring is moved to the joint between the pier column units to block the joint, and finally painting is performed; The inner diameter of the guide pipe body is 1.3 times or more of the diameter of the circumscribed circle of the cross section of the bearing column; The extrusion driving wheel is a cylindrical wheel body covered with a rubber layer, which is always in close contact with the bearing column during use; The number of limiting pins on the guide pipe body is two; The length of the bearing column is less than two-thirds of the length of the guide pipe body; The length of the penetrating groove is more than four-fifths of the length of the guide groove, and the length is greater than the distance between the two limiting pins on the guide pipe body; the distance between the penetrating grooves on the adjacent two bearing columns is less than the distance between the two limiting pins on the guide pipe body; The penetrating groove is used for inserting the limiting pin; The length of the connecting rope is more than 1.1 times of the total length of all the bearing columns, and the two ends of the connecting rope are fixed on the bearing columns at the two ends.

2. The steel bridge design joint reinforcement device of claim 1, wherein: The string body containing assembly is detachable and can be separately transported to the target position with the support frame.

3. The steel bridge design joint reinforcement device of claim 1, wherein: It also includes a lifting stabilizing assembly; The bearing column is provided with an internal channel, and the inlet and outlet of the internal channel are located at the top end and the bottom end of the bearing column, respectively; The internal channel is rod-shaped and has a whole φ shape; The lifting stabilizing assembly includes a connecting column; The connecting column is located between the bearing column and the jacking assembly, is hollow inside, and is fixed with a pump assembly inside; The bottom of the connecting column is fixed with a swelling stabilizing capsule, which is a long strip-shaped elastic rubber capsule body and penetrates each bearing column through the internal channel; The top of the swelling stabilizing capsule is in communication with the pump assembly, which is a combination of an air pump and a valve body; During the lifting of the bearing column, the pump assembly is controlled to operate to swell the swelling stabilizing capsule, and the internal channel is gradually filled during the swelling of the swelling stabilizing capsule, thereby improving the overall stability and reducing the misalignment during the splicing of the bearing column.

4. The steel bridge design joint reinforcement device of claim 3, wherein: The lifting stabilizing assembly also includes a pulling winch, and the number of the pulling winch is three, including a winch assembly and a pulling rope; One end of the pulling rope is fixed to the connecting column, and the other end is fixed to the winch assembly; the winch assembly is used to wind and release the pulling rope; Before the lifting of the bearing string assembly, the winch assembly is first fixed to the ground around the support frame, and the pulling rope is gradually released as the bearing string assembly rises; After the rubber block touches the bridge, the pulling rope is removed from the connecting column.

5. The steel bridge design joint reinforcement device of claim 3, wherein: The side wall of the connecting column is uniformly provided with three positioning fins with a length of more than 50 cm; The lifting stabilizing assembly also includes a pulling winch, and the number of the pulling winch is three, including a winch assembly and a pulling rope; One end of the pulling rope is fixed to the end of the positioning fin away from the connecting column, and the other end is fixed to the winch assembly; The winch assembly is used to wind and release the pulling rope; The winch assembly is used to wind and release the pulling rope; A rotating frame is also positioned on the sidewall of the guide pipe body, and the rotating frame is used to carry a fixed hoisting assembly and rotate around the axis of the guide pipe body under the control of the control unit; When the carrying string assembly is ascending, the hoisting assembly gradually releases the pulling rope with the ascending of the carrying string assembly; When the rotating pipe of the clamping and lifting assembly rotates, the rotating frame rotates synchronously with the rotating pipe, so that the existence of the pulling rope does not hinder the assembly of the pier unit.

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