CN109235291B - Railway bridge beam replacing system - Google Patents
Railway bridge beam replacing system Download PDFInfo
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- CN109235291B CN109235291B CN201811213108.3A CN201811213108A CN109235291B CN 109235291 B CN109235291 B CN 109235291B CN 201811213108 A CN201811213108 A CN 201811213108A CN 109235291 B CN109235291 B CN 109235291B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to a railway bridge beam replacing system, which comprises an existing assembly, a beam replacing device and a beam replacing device, wherein the existing assembly comprises an existing beam to be replaced, an existing railway track laid on the existing beam, an existing pier arranged on the ground, and an existing support arranged on the existing pier and positioned below the existing beam; the beam replacing device is used for replacing the existing beam with a new beam of a steel-concrete combined T-shaped beam structure; the steel pipe-concrete composite bridge comprises a strip foundation which is arranged on a highway road below an existing beam, takes a steel pipe as a module and is internally poured with concrete, an isolation film arranged between the strip foundation and the hardened foundation, a steel bar of which the lower end is implanted into the foundation and is welded with the module, a support system of which the lower end is connected with a steel pipe flange plate and the strip foundation through foundation bolts and is erected through the steel pipe, and a synchronous translation system arranged at the upper end of the support system.
Description
Technical Field
The invention relates to a railway bridge beam replacing system.
Background
At present, a large number of T-shaped beams are arranged on a pier, a support is additionally arranged between the T-shaped beams to realize installation and connection, in the using process, due to the movement of a crust, the vibration impact of a train on the T-shaped beams, the weather change, the temperature change and the natural disaster, and after long-time use, the internal structure stress of the T-shaped beams changes, so that the T-shaped beams have cracks and other factors which influence the bridge, therefore, the T-shaped beams need to be replaced, and due to the fact that the T-shaped beams need to be changed or suspended on a railway route in the prior art, temporary control is carried out on roads under the bridge, the waiting time is long, the traffic is seriously influenced, the cost is high, and the efficiency is.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a railway bridge beam replacing process and a beam replacing system; the technical problems to be solved and the advantages to be achieved are set forth in the description which follows and in the detailed description of the embodiments.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a railway bridge beam replacing system comprises
The existing assembly comprises an existing beam to be replaced, an existing railway track paved on the existing beam, an existing pier installed on the ground, and an existing support arranged on the existing pier and located below the existing beam;
the beam replacing device is used for replacing the existing beam with a new beam of a steel-concrete combined T-shaped beam structure; which comprises a strip foundation which is arranged on the existing road below the existing beam and takes a steel pipe as a module and concrete is poured inside, an isolation film arranged between the strip foundation and the hardened foundation, a steel bar with the lower end implanted into the foundation and welded with the module, a support system with the lower end connected with a steel pipe flange plate and the strip foundation by adopting foundation bolts and erected by adopting the steel pipe, and a synchronous translation system arranged at the upper end of the support system,
the synchronous translation system comprises a beam moving runway and a beam moving trolley which runs on the beam moving runway and bears the existing beam or the new beam;
the synchronous translation system also comprises a new lifting device for jacking the new beam to the position above the beam moving runway and/or an existing lifting device for lowering the existing beam from the beam moving trolley to leave the beam moving runway;
a temporary rail arranged above the existing railway rail is erected above the existing beam; the temporary train rail comprises two train rail steel structure approach bridges which are respectively connected with the corresponding end parts of the existing railway train rail, a train rail steel structure viaduct which is connected between the two train rail steel structure approach bridges, and train indication induction boards/induction indication lamps which are arranged in front of and behind the train rail steel structure approach bridges and used for guiding trains;
a temporary lane is arranged on the existing road below the existing beam, the temporary lane comprises a spiral lane steel structure splicing approach bridge and a lane steel structure connecting bridge, wherein the two ports of the temporary lane are communicated with the corresponding existing road and are formed by splicing steel structures in a segmented mode, and the lane steel structure connecting bridge is arranged between the lane steel structure splicing approach bridges;
the support system is vertically provided with a rail support hydraulic cylinder positioned on two sides of the beam moving track, a rail support cross beam arranged at the upper end of the rail support hydraulic cylinder, and a rail support adjusting screw seat which is arranged above the rail support cross beam and used for jacking the corresponding existing railway rail;
the beam moving trolley is characterized in that a trolley traction frame is arranged at the end part of the beam moving trolley, a trolley traction roller or a reaction frame which is connected with the trolley traction frame and drives the beam moving trolley to move is arranged on a beam moving track, a trolley U-shaped positioning seat used for bearing the lower end of a new beam and/or an existing beam is arranged on the beam moving trolley, a beam moving synchronous control system used for jacking the two sides of the lower end of the new beam and/or the existing beam is arranged on the beam moving trolley, and a trolley displacement sensor used for sensing the beam moving trolley is arranged at the terminal of the beam moving track; the beam moving synchronous control system comprises a hydraulic pump station, a control valve connected with the hydraulic pump station, an oil way distribution block connected with the control valve, at least three hydraulic cylinders which are arranged in parallel, connected with the oil way distribution block through pipelines and used for supporting the T-shaped beam, a control valve and a pressure maintaining oil way which are arranged between the hydraulic cylinders and the oil way distribution block, a displacement sensor arranged on a piston rod of the hydraulic cylinder and a PLC control unit connected with the displacement sensor;
the new lifting device and/or the existing lifting device comprises a lower support lifting cylinder arranged on the supporting system, a lower bracket arranged on the lower support lifting cylinder in a lifting way, two lower support upper jacking cylinders arranged at the upper ends of the lower bracket, and lower support U-shaped supports which are arranged on the lower support upper jacking cylinders, are used for positioning and contacting with the lower ends of the upper support new beams or the existing beams and are positioned at two sides of the beam moving trolley; an old beam rotating platform used for rotating the existing beam by ninety degrees is arranged below the lower bracket of the existing lifting device and/or a new beam rotating platform used for rotating the new beam by ninety degrees is arranged below the lower bracket of the new lifting device; the trabecular car for transferring the new beam and/or the existing beam runs on the existing lane.
As a further improvement of the above technical solution:
the support system is provided with a processing trolley which is of a gantry structure and walks across the existing support, the processing trolley comprises drilling rigs which are arranged on the two sides and the top of the gantry and are used for drilling the existing support, the processing trolley comprises a stone chiseling machine/air pick which is arranged on the two sides and the top of the gantry and is used for chiseling the existing support after drilling to an appointed height, and the processing trolley is provided with a height measurement sensor;
a longitudinal movement device is vertically arranged on the support system and comprises a longitudinal movement runway, a longitudinal movement main running car and a longitudinal movement auxiliary running car, wherein the longitudinal movement runway is vertical to the beam movement runway; the longitudinal moving ground grabbing support legs are respectively arranged on the longitudinal moving main running car and the longitudinal moving auxiliary running car, the longitudinal moving rolling rollers are respectively arranged on the longitudinal moving main running car and the longitudinal moving auxiliary running car and are in rolling contact with the lower surfaces of the existing beams and/or the new beams, and the longitudinal moving beam conveying hydraulic cylinder is arranged on the longitudinal moving main running car and pushes the existing beams and/or the new beams. The longitudinal moving main running vehicle and the longitudinal moving auxiliary running vehicle are used for transferring a beam to be replaced adjacent to the existing beam to the beam moving trolley and/or the longitudinal moving main running vehicle and the longitudinal moving auxiliary running vehicle are used for transferring a new beam on the bearing beam moving trolley.
The assembly process of the railway bridge girder replacing system comprises an existing assembly, a bridge girder replacing system and a bridge girder replacing system, wherein the existing assembly comprises an existing girder to be replaced, an existing railway track laid on the existing girder, an existing bridge pier installed on the ground and an existing support arranged on the existing bridge pier and located below the existing girder; the beam replacing device is used for replacing the existing beam with a new beam of a steel-concrete combined T-shaped beam structure; the device comprises a strip foundation, an isolation film, a steel bar, a support system and a synchronous translation system, wherein the strip foundation is installed on an existing road below an existing beam, takes a steel pipe as a module, and is internally poured with concrete, the isolation film is arranged between the strip foundation and the hardened foundation, the lower end of the steel bar is implanted into the foundation and is welded with the module, the lower end of the support system is connected with a steel pipe flange plate and the strip foundation through foundation bolts, the support system is erected through the steel pipe, the synchronous translation system is arranged at the upper end of the support system, and the synchronous translation system comprises a beam moving runway and a beam moving trolley which runs on the beam moving runway and bears the existing; the synchronous translation system also comprises a new lifting device for jacking the new beam to the position above the beam moving runway and/or an existing lifting device for lowering the existing beam from the beam moving trolley to leave the beam moving runway; the process comprises the following steps:
step I, preparation work, namely firstly, calculating the length difference and the height difference between an existing beam and a new beam, calculating the height difference between an existing support and a new support, and preparing equal-height pads; then, installing and pouring a strip foundation on the existing highway; secondly, assembling a beam moving trolley, and installing a trolley traction frame, a trolley U-shaped positioning seat and a beam moving synchronous control system on the beam moving trolley; thirdly, assembling a support system on the strip-shaped foundation; then, a beam moving track is built on the support system, the beam moving trolley is hung on the beam moving track, a trolley traction roller or a reaction frame connected with a trolley traction frame is installed on the beam moving track, and a trolley displacement sensor is installed on the beam moving track;
firstly, connecting corresponding oil way distribution blocks after hydraulic cylinders are connected in parallel, and connecting a hydraulic pump station and a control valve; then, one oil way distribution block is connected with the control valve, and the other oil way distribution block is connected with the oil tank; secondly, a piston rod of the hydraulic cylinder is provided with a displacement sensor, and the displacement sensor is connected with a PLC control unit;
step II, installing a new lifting device and/or an existing lifting device on a support system, firstly, installing a lower support lifting cylinder on the support system, arranging a lower bracket on the lower support lifting cylinder in a lifting manner, arranging two lower support upper jacking cylinders at the upper end of the lower bracket, and arranging lower support U-shaped supports which are used for positioning and contacting with the lower ends of the upper support new beams or the existing beams and are positioned at two sides of the beam moving trolley on the lower support upper jacking cylinders; then, a new beam rotating table for rotating the beam by ninety degrees is arranged below the corresponding lower bracket; secondly, a joist vehicle for transferring a new beam and/or an existing beam runs on the existing lane; thirdly, rail support hydraulic cylinders positioned on two sides of the beam moving track are vertically arranged on the support system, a rail support cross beam is installed at the upper end of the rail support hydraulic cylinders, and a rail support adjusting screw seat for jacking the corresponding existing railway rail is arranged above the rail support cross beam;
step III, installing processing equipment, arranging a gantry structure on a support system, and walking a processing trolley crossing an existing support, wherein the processing trolley comprises drilling rigs which are arranged on the two sides and the top of the gantry and used for drilling the existing support, the processing trolley comprises a stone chiseling machine/pneumatic pick which is arranged on the two sides and the top of the gantry and used for chiseling the existing support after chiseling to an appointed height, and a height measurement sensor is arranged on the processing trolley;
step IV, installing a longitudinal moving device;
step V, firstly, erecting a temporary train rail above an existing beam and installing a train indication induction board/induction indicating lamp for guiding a train; then, a temporary lane is set on the existing road under the existing beam.
A railway bridge beam replacing process is characterized in that a railway bridge beam replacing system completed by means of assembly comprises existing components, a beam replacing device and a beam replacing device, wherein the existing components comprise an existing beam to be replaced, an existing railway track laid on the existing beam, an existing pier installed on the ground and an existing support arranged on the existing pier and located below the existing beam; the beam replacing device is used for replacing the existing beam with a new beam of a steel-concrete combined T-shaped beam structure; the device comprises a strip foundation, an isolation film, a steel bar, a support system and a synchronous translation system, wherein the strip foundation is installed on an existing road below an existing beam, takes a steel pipe as a module, and is internally poured with concrete, the isolation film is arranged between the strip foundation and the hardened foundation, the lower end of the steel bar is implanted into the foundation and is welded with the module, the lower end of the support system is connected with a steel pipe flange plate and the strip foundation through foundation bolts, the support system is erected through the steel pipe, the synchronous translation system is arranged at the upper end of the support system, and the synchronous translation system comprises a beam moving runway and a beam moving trolley which runs on the beam moving runway and bears the existing; the synchronous translation system also comprises a new lifting device for jacking the new beam to the position above the beam moving runway and/or an existing lifting device for lowering the existing beam from the beam moving trolley to leave the beam moving runway; the process comprises the following steps:
firstly, leading the automobile, arranging a special person, and guiding the automobile to pass through an existing lane along a temporary lane; then, the railway traffic department is informed, and after the train is informed to see the train indication induction board/induction indicating lamp, the train passes through the upper part of the existing railway track along the temporary track;
firstly, conveying the new beam to a new beam rotating table through a beam supporting vehicle; then, the new beam rotating platform drives the new beam to ascend, leave the joist vehicle and rotate for ninety degrees; secondly, storing the new beam in a lower bracket of the new lifting device for standby; thirdly, the joist vehicle moves to the two sides of the old joist rotating platform for standby;
step three, firstly, adjusting the extension length of the corresponding rail support adjusting screw seat; then, starting a rail support hydraulic cylinder, and adjusting the upper top of the screw seat to lift the existing railway rail and separate the rail from the existing beam through rail support; secondly, the beam moving trolley moves to the position below the existing beam; thirdly, starting piston rods of hydraulic cylinders of the hydraulic pump station top jacking, detecting and ensuring that the piston rods of the hydraulic cylinders ascend at the same speed through a displacement sensor, and driving the existing beam top jacking to leave a pier by moving a beam moving trolley; then, the piston rods of the hydraulic cylinders descend at the same speed, and the existing beam falls into the U-shaped positioning seat of the trolley; finally, the trolley traction roller or the reaction frame traction beam moving trolley moves to a beam moving runway above the lower bracket of the existing lifting device positioned outside the lower bracket of the new lifting device;
firstly, starting a machining trolley to travel to an existing support; then, separating and taking down the existing support from the pier through a stone chiseling machine/air pick; secondly, starting a drilling rig to drill and break the upper surface of the pier; thirdly, starting the stone chiseling machine/air pick to chisel the upper surface of the pier after the hole is chiseled; then, measuring the height of the upper surface of the pier and adding a pad with equal height; finally, mounting a new support with a spherical structure on the equal-height pads for mounting a new beam; .
Starting a lower support lifting cylinder of the existing lifting device, and driving a lower support U-shaped support to come below an existing beam by a lower support frame; then, starting the lower support upper top cylinder and the upper top existing beam to leave the beam moving trolley, and simultaneously, pulling the beam moving trolley to leave the upper part of the lower bracket by a trolley traction roller or a reaction frame, and removing a beam moving track above the lower bracket; secondly, the lower supporting upper jacking cylinder drives the existing beam to fall onto the lower bracket, and meanwhile, the lower supporting lifting cylinder drives the existing beam to fall onto the old beam rotating table; thirdly, the old beam rotating platform rotates the existing beam by ninety degrees and then is placed on the joist barrow; finally, the old beam rotating platform is driven by the hydraulic cylinder to sink, and the existing beam is transported away by the beam supporting vehicle;
step two, firstly, removing a beam moving track above a lower bracket of the new lifting device in the step two; then, driving a lower supporting lifting cylinder to jack the new beam to the upper part of the beam moving runway, and reinstalling the removed beam moving runway; secondly, the trolley traction roller or the reaction frame traction beam moving trolley moves below the lower bracket, and the lower bracket lifting cylinder descends to place a new beam into the trolley U-shaped positioning seat; finally, the trolley traction roller or the reaction frame traction beam moving trolley comes to the pier, and a new beam is placed on a new support by matching with a hydraulic pump station top hydraulic cylinder;
and seven, ending.
As a further improvement of the above technical solution:
when the beam to be replaced is positioned on one side of the existing beam, executing step α to replace the step three to disassemble the beam, firstly, adjusting the corresponding rail support adjusting screw seat to extend out length, then, starting a rail support hydraulic cylinder to lift the existing railway rail by the rail support adjusting screw seat and separate the rail from the beam, secondly, moving the longitudinally-moved main sports car and the longitudinally-moved auxiliary sports car to the lower part of the existing beam, meanwhile, lowering the longitudinally-moved ground-grabbing legs to grab ground, secondly, starting the hydraulic cylinders on the hydraulic pump station to lift the longitudinally-moved main sports car and the longitudinally-moved auxiliary sports car to lift the beam to leave the bridge pier, then driving the beam to transversely move to the longitudinally-moved runway, then, descending the piston rods of the hydraulic cylinders at the same speed to drop the beam on the longitudinally-moved rolling rollers, and finally, driving the beam to move to the two sides of the beam-moving runway, and starting the hydraulic cylinders to drop the beam on the beam-moving trolley;
the beam is installed by reversing step α. the benefits of the present invention are not limited to this description, but are described in more detail in the detailed description section for better understanding.
Drawings
Fig. 1 is a schematic structural view of the whole of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of an entire plan view of embodiment 1 of the present invention.
Fig. 3 is a schematic three-dimensional structure in embodiment 1 of the present invention.
Fig. 4 is a schematic structural view of a beam replacement in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of a beam-exchanging solid in embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a longitudinal beam in embodiment 1 of the present invention.
Wherein: 1. existing railway rails; 2. an existing beam; 3. a new beam; 4. a strip foundation; 5. a support system; 6. a new lifting device; 7. the existing support is provided; 8. a beam moving trolley; 9. a beam moving track; 10. an existing component; 11. a beam changing device; 12. a longitudinal moving device; 13. a temporary rail; 14. a temporary lane; 15. splicing approach bridges in a lane steel structure; 16. the lane steel structure is connected with the bridge; 17. a steel structure approach bridge of the rail; 18. a vehicle rail steel structure viaduct; 19. train indication induction board; 20. a rail support hydraulic cylinder; 21. a rail support beam; 22. the rail supports the adjusting screw base; 23. a trolley traction frame; 24. a trolley traction drum; 25. a trolley U-shaped positioning seat; 26. a beam moving synchronous control system; 27. a trolley displacement sensor; 28. a lower supporting lifting cylinder; 29. a lower bracket; 30. supporting the upper jacking cylinder downwards; 31. a lower support U-shaped support; 32. a rotating platform of an old beam; 33. a new beam rotating table; 34. a joist vehicle; 35. a processing trolley; 36. a drilling rig; 37. a stone chisel machine; 38. a height measurement sensor; 39. longitudinally moving a runway; 40. longitudinally moving the main sports car; 41. longitudinally moving the auxiliary sports car; 42. a longitudinal transfer beam hydraulic cylinder; 43. longitudinally moving ground gripping support legs; 44. longitudinally moving the rolling roller.
Detailed Description
The technical difficulties of beam replacement are as follows;
the method aims at the problems that the existing line beam replacement construction process is complicated, the time requirement is high, long-time shutdown cannot be performed for beam replacement construction, meanwhile, the existing line facilities are multiple, the environment is complex, and the influence on the existing line facilities needs to be reduced as much as possible during beam replacement construction. The solution of the invention is as follows: before the beam is sealed and replaced, the new beam is subjected to bridge deck system construction, bridge deck pre-paved with ballast and other auxiliary facility construction, so that part of the auxiliary facilities can be constructed outside the point to save the construction time of replacing the beam inside the point; realizing uplink and downlink synchronous operation; the construction machines and the personnel are sufficiently configured, the equipment machines are sufficiently standby, and extra occupied time due to equipment failure is reduced.
The second technical difficulty is that because the longitudinal dislocation of the upper and lower bridge positions of the bridge is 1.27m, the existing beam can not transversely move from one side to remove the new beam and transversely move from the other side to be in place during the beam replacement construction, the beam outlet and beam inlet directions can only be relatively unsynchronized, the existing beam can only be transversely moved firstly to be removed in effective time, then the new beam is transversely moved to be in place, and the process in the beam replacement point is blocked, simplified and optimized and has high control requirements. The solution is that a phi 500 steel pipe supporting system is erected on a beam-changing traverse runway and at the bottom of an existing beam during construction, and 1 set of beam-moving trolley and beam-moving synchronous control system are respectively arranged. The new beam low position is stored on a phi 500 steel pipe support system, when the construction is carried out in the sealing and beam replacing point, the existing beam is firstly moved out in a transverse way, then the new beam stored at the low position is jacked to the transverse moving height by adopting a synchronous jacking system, and then the new beam is moved in position in a synchronous transverse way. According to the working procedure, the working procedures of removing the existing beam-jumping beam support in the large hoisting process in the locking point and hoisting the new beam to the beam-shifting support are reduced, the working procedure in the beam-changing locking point is greatly simplified by changing the working procedure outside the point, and the construction time is effectively saved.
The safety stability and the balance of the beam body are ensured in the process of jacking and falling the beam, otherwise, the plane of the beam body is distorted, so that the beam body is unstable and cracked, and the structure is permanently damaged. The corresponding strategy of the invention is as follows: through the PLC control system who adopts the specialty, it has the automatic compensation function, the device synchronous compensation jack, it is a power and displacement dual control system to adopt PLC control hydraulic pressure synchronous system, synchronous precision is 1.0mm, synchronous jacking force precision is within 0.5KN, thereby play displacement compensation's effect, supervise whole beam changing process roof beam body and be in three point balance state, and maintain three point balance state, guarantee jacking process synchronism that can be fine, guarantee structural security.
The technical difficulty is four, and 8 existing technologies of pier top pad stone chiseling and drilling are carried out in points, which is the difficulty of the project. The corresponding strategy of the invention is as follows: 1) and measuring and lofting according to the steel rail elevation of the existing line, calculating according to the heights of the existing beam, the new beam and the support, and measuring the range and the thickness of the chiseled pier top pad stone. 2) Confirm through measuring to accomplish after the face of chiseling, carry out the sign, look over the concrete position of base stone top layer reinforcing bar net, whether need chiseling reinforcing bar net piece, the machinery equipment of clear chiseling adoption. 3) The outside of the existing support can be chiseled by adopting an air pick outside the front point of the beam replacement, so that the construction time of the beam replacement in the point is saved, and the normal opening of the line is ensured. 4) After the existing beam is moved out, the supporting cushion stone at the lower part of the existing support is chiseled off until the designed elevation, and the requirements of installation of a new beam and grouting of the support are met.
The invention realizes the control of the safety of the existing T-beam removal and new steel-concrete combined beam moving installation construction, the safety of high-altitude operation, the safety of traffic under the bridge and the safety of the existing railway operation, shortens the construction period and reduces the influence on the normal operation of the existing railway line.
The reference documents of the invention have the file requirements of the business line construction safety management implementation scrutiny of the Shuofhuang railway development Limited liability company; during the construction of beam changing, set up the hard isolation protection of various steel to the construction scope, keep apart construction area and driving road, guarantee existing road driving safety.
As shown in FIGS. 1-6, the railroad bridge beam replacement system of the embodiment comprises
The existing assembly 10 comprises an existing beam 2 to be replaced, an existing railway track 1 laid on the existing beam 2, an existing pier installed on the ground, and an existing support 7 arranged on the existing pier and located below the existing beam 2;
the beam replacing device 11 is used for replacing the existing beam 2 with a new beam 3 of a T-shaped beam structure combined by steel and concrete; which comprises a strip foundation 4 which is arranged on the existing road below the existing beam 2 and takes a steel pipe as a module and concrete is poured inside, an isolation film arranged between the strip foundation 4 and the hardened foundation, a steel bar with the lower end implanted into the foundation and welded with the module, a support system 5 with the lower end connected with the strip foundation 4 through a steel pipe flange plate by adopting foundation bolts and erected by adopting the steel pipe, and a synchronous translation system arranged at the upper end of the support system 5,
the synchronous translation system comprises a beam moving runway 9 and a beam moving trolley 8 which runs on the beam moving runway 9 and bears the existing beam 2 or the new beam 3;
the synchronous translation system also comprises a new lifting device 6 for lifting the new beam 3 to be above the beam moving runway 9 and/or an existing lifting device for lowering the existing beam 2 from the beam moving trolley 8 to be separated from the beam moving runway 9;
a temporary rail 13 positioned above the existing railway rail 1 is erected above the existing beam 2; the temporary rail 13 comprises two rail steel structure approach bridges 17 which are respectively connected with the corresponding end parts of the existing railway rails 1, a rail steel structure viaduct 18 connected between the two rail steel structure approach bridges 17, and train indication induction boards 19/induction indication lamps which are arranged in front of and behind the rail steel structure approach bridges 17 and used for guiding trains;
a temporary lane 14 is arranged on the existing road below the existing beam 2, the temporary lane 14 comprises two spiral lane steel structure splicing approach bridges 15 and a lane steel structure connecting bridge 16, wherein the two spiral lane steel structure splicing approach bridges 15 are formed by splicing steel structures by sections, and the ports of the two spiral lane steel structure splicing approach bridges are communicated with the corresponding existing road;
the support system 5 is vertically provided with a rail support hydraulic cylinder 20 positioned at two sides of the beam moving track 9, a rail support cross beam 21 arranged at the upper end of the rail support hydraulic cylinder 20, and a rail support adjusting screw seat 22 which is arranged above the rail support cross beam 21 and used for jacking the corresponding existing railway rail 1;
a trolley traction frame 23 is arranged at the end part of the beam moving trolley 8, a trolley traction roller 24 or a reaction frame which is connected with the trolley traction frame 23 and drives the beam moving trolley 8 to move is arranged on the beam moving track 9, a trolley U-shaped positioning seat 25 for bearing the lower end of the new beam 3 and/or the existing beam 2 is arranged on the beam moving trolley 8, a beam moving synchronous control system 26 for jacking the new beam 3 and/or the two sides of the lower end of the existing beam 2 is arranged on the beam moving trolley 8, and a trolley displacement sensor 27 for sensing the beam moving trolley 8 is arranged at the terminal of the beam moving track 9; the beam moving synchronous control system 26 comprises a hydraulic pump station, a control valve connected with the hydraulic pump station, an oil way distribution block connected with the control valve, at least three hydraulic cylinders which are arranged in parallel, connected with the oil way distribution block through pipelines and used for supporting the T-shaped beam, a control valve and a pressure maintaining oil way which are arranged between the hydraulic cylinders and the oil way distribution block, a displacement sensor arranged on a piston rod of the hydraulic cylinder, and a PLC control unit connected with the displacement sensor;
the new lifting device 6 and/or the existing lifting device comprises a lower support lifting cylinder 28 arranged on the support system 5, a lower bracket 29 arranged on the lower support lifting cylinder 28 in a lifting way, two lower support upper jacking cylinders 30 arranged at the upper ends of the lower bracket 29, and lower support U-shaped supports 31 which are arranged on the lower support upper jacking cylinders 30, are used for being in positioning contact with the lower ends of the upper support new beams 3 or the existing beams 2 and are positioned at two sides of the beam moving trolley 8; an old beam rotating table 32 for rotating the existing beam 2 by ninety degrees is arranged below the lower bracket 29 of the existing lifting device and/or a new beam rotating table 33 for rotating the new beam 3 by ninety degrees is arranged below the lower bracket 29 of the new lifting device 6; the joist trucks 34 for transferring the new beam 3 and/or the existing beam 2 are driven on the existing driveway.
A processing trolley 35 which is of a gantry structure and runs across the existing support 7 is arranged on the supporting system 5, the processing trolley 35 comprises drilling rigs 36 which are arranged on the two sides and the top of the gantry and are used for drilling the existing support 7, the processing trolley 35 comprises stone chisels 37/pneumatic picks which are arranged on the two sides and the top of the gantry and are used for chiseling the existing support 7 after drilling to an appointed height, and a height measurement sensor 38 is arranged on the processing trolley 35;
the longitudinal moving device 12 is vertically arranged on the support system 5, and the longitudinal moving device 12 comprises a longitudinal moving runway 39 vertical to the beam moving runway 9, a longitudinal moving main carriage 40 and a longitudinal moving auxiliary carriage 41 arranged on the longitudinal moving runway 39, longitudinal moving ground-grasping legs 43 respectively arranged on the longitudinal moving main carriage 40 and the longitudinal moving auxiliary carriage 41, longitudinal moving rolling rollers 44 respectively arranged on the longitudinal moving main carriage 40 and the longitudinal moving auxiliary carriage 41 and in rolling contact with the lower surfaces of the existing beam 2 and/or the new beam 3, and a longitudinal moving beam hydraulic cylinder 42 arranged on the longitudinal moving main carriage 40 and pushing the existing beam 2 and/or the new beam 3. The longitudinal main trolley 40 and the longitudinal auxiliary trolley 41 are used for transferring the beam to be replaced adjacent to the existing beam 2 onto the beam transferring trolley 8 and/or the longitudinal main trolley 40 and the longitudinal auxiliary trolley 41 are used for transferring the new beam 3 on the beam carrying trolley 8.
The assembling process of the railway bridge girder replacing system comprises the following steps:
step I, preparation work, namely firstly, calculating the length difference and the height difference between the existing beam 2 and the new beam 3, calculating the height difference between the existing support 7 and the new support, and preparing equal-height pads; then, installing and pouring a strip-shaped foundation 4 on the existing highway; secondly, assembling the beam moving trolley 8, and installing a trolley traction frame 23, a trolley U-shaped positioning seat 25 and a beam moving synchronous control system 26 on the beam moving trolley 8; thirdly, assembling a support system 5 on the strip-shaped foundation 4; then, a beam moving track 9 is built on the support system 5, the beam moving trolley 8 is hung on the beam moving track 9, a trolley traction roller 24 or a reaction frame connected with a trolley traction frame 23 is installed on the beam moving track 9, and a trolley displacement sensor 27 is installed on the beam moving track 9;
firstly, connecting corresponding oil way distribution blocks after the hydraulic cylinders are connected in parallel, and connecting a hydraulic pump station and a control valve; then, one oil way distribution block is connected with the control valve, and the other oil way distribution block is connected with the oil tank; secondly, a piston rod of the hydraulic cylinder is provided with a displacement sensor, and the displacement sensor is connected with a PLC control unit;
step II, installing a new lifting device 6 and/or an existing lifting device on a support system 5, firstly, installing a lower supporting lifting cylinder 28 on the support system 5, arranging a lower bracket 29 on the lower supporting lifting cylinder 28 in a lifting way, arranging two lower supporting upper jacking cylinders 30 at the upper end of the lower bracket 29, and arranging lower supporting U-shaped supports 31 which are used for being in positioning contact with the lower end of the new upper supporting beam 3 or the existing beam 2 and are positioned at two sides of the beam moving trolley 8 on the lower supporting upper jacking cylinders 30; then, a new beam rotating table 33 for rotating the beam by ninety degrees is provided below the corresponding lower bracket 29; secondly, a joist barrow 34 for transferring the new beam 3 and/or the existing beam 2 runs on the existing lane; thirdly, rail support hydraulic cylinders 20 positioned on two sides of the beam moving runway 9 are vertically arranged on the support system 5, a rail support cross beam 21 is arranged at the upper end of the rail support hydraulic cylinder 20, and a rail support adjusting screw seat 22 for jacking the corresponding existing railway rail 1 is arranged above the rail support cross beam 21;
step III, installing processing equipment, arranging a gantry structure on the supporting system 5, walking and crossing over a processing trolley 35 of the existing support 7, wherein the processing trolley 35 comprises drilling rigs 36 which are arranged on the two sides and the top of the gantry and used for drilling the existing support 7, the processing trolley 35 comprises stone chisels 37/pneumatic picks which are arranged on the two sides and the top of the gantry and used for chiseling the existing support 7 after drilling to an appointed height, and a height measurement sensor 38 is arranged on the processing trolley 35;
step IV, installing a longitudinal moving device 12;
step V, firstly, erecting a temporary train rail 13 above the existing beam 2 and installing a train indication induction board 19/induction indicating lamp for guiding the train; then, a temporary lane 14 is provided on the existing road under the existing beam 2.
The railway bridge beam replacing process provided by the embodiment is based on an assembled railway bridge beam replacing system, and comprises the following steps of:
firstly, dredging the automobile, arranging a special person, and guiding the automobile to pass through the existing lane along the temporary lane 14; then, the railway traffic department is informed, and after the train is informed to see the train indication induction board 19/induction indicating lamp, the train passes through the upper part of the existing railway track 1 along the temporary track 13;
step two, firstly, the new beam 3 is sent to the new beam rotating platform 33 through the beam supporting vehicle 34; then, the new beam rotating platform 33 drives the new beam 3 to ascend and leave the joist barrow 34 and then rotate ninety degrees; secondly, the new beam 3 is stored in the lower bracket 29 of the new lifting device 6 for standby; thirdly, the joist barrow 34 moves to the two sides of the old joist rotating platform 32 for standby;
step three, firstly, adjusting the extending length of the corresponding rail support adjusting screw seat 22; then, starting the rail support hydraulic cylinder 20, and lifting the existing railway rail 1 and separating the existing railway rail from the existing beam 2 by using the rail support adjusting screw seat 22; secondly, the beam moving trolley 8 moves to the position below the existing beam 2; thirdly, starting piston rods of hydraulic cylinders on the top of the hydraulic pump station, detecting and ensuring that the piston rods of the hydraulic cylinders rise at the same speed through a displacement sensor, and driving the existing beam 2 to lift off the bridge pier by moving the beam moving trolley 8; then, the piston rods of the hydraulic cylinders descend at the same speed, and the existing beam 2 falls into the trolley U-shaped positioning seat 25; finally, the trolley traction roller 24 or the reaction frame traction beam moving trolley 8 moves to the beam moving runway 9 above the lower bracket 29 of the existing lifting device positioned outside the lower bracket 29 of the new lifting device 6;
firstly, starting the machining trolley 35 to travel to the existing support 7; then, separating and taking down the existing support 7 from the pier through a stone chisel 37/air pick; secondly, the drilling rig 36 is started to drill and break the upper surface of the pier; thirdly, starting the stone chiseling machine 37/air pick to chisel the upper surface of the pier after the hole is chiseled; then, measuring the height of the upper surface of the pier and adding a pad with equal height; finally, mounting a new support with a spherical structure on the equal-height cushion for mounting a new beam 3; .
Starting a lower support lifting cylinder 28 of the existing lifting device, and driving a lower support U-shaped support 31 to come under the existing beam 2 by a lower bracket 29; then, starting the lower supporting upper top cylinder 30 to lift the existing beam 2 away from the beam moving trolley 8, meanwhile, pulling the beam moving trolley 8 away from the upper part of the lower bracket 29 by the trolley pulling roller 24 or the reaction frame, and removing the beam moving track 9 above the lower bracket 29; secondly, the lower supporting upper jacking cylinder 30 drives the existing beam 2 to fall onto the lower bracket 29, and meanwhile, the lower supporting lifting cylinder 28 drives the existing beam 2 to fall onto the old beam rotating table 32; thirdly, the old beam rotating platform 32 rotates the existing beam 2 by ninety degrees and then places the existing beam on the joist barrow 34; finally, the old beam rotating platform 32 is driven by the hydraulic cylinder to sink, and the joist barrow 34 transports the existing beam 2 away;
step two, firstly, the beam moving track 9 above the lower bracket 29 of the new lifting device 6 of step two is removed; then, the lower supporting lifting cylinder 28 is driven to jack the new beam 3 up to the position above the beam moving runway 9, and the removed beam moving runway 9 is installed again; secondly, the trolley traction roller 24 or the reaction frame traction beam moving trolley 8 moves below the lower bracket 29, and the lower bracket lifting cylinder 28 descends to place the new beam 3 into the trolley U-shaped positioning seat 25; finally, the trolley traction roller 24 or the reaction frame traction beam moving trolley 8 comes to the pier, and the new beam 3 is placed on the new support by matching with the hydraulic pump station top hydraulic cylinder;
and seven, ending.
When the beam to be replaced is positioned on one side of the existing beam 2, executing step α to replace the step three to disassemble the beam, firstly, adjusting the extending length of the corresponding rail support adjusting screw seat 22, then, starting the rail support hydraulic cylinder 20, jacking the existing railway rail 1 on the rail support adjusting screw seat 22 to ascend and separate from the beam, secondly, moving the longitudinal moving main running car 40 and the longitudinal moving auxiliary running car 41 to the lower part of the existing beam 2, meanwhile, descending the support leg 43 to grab the ground, thirdly, starting the hydraulic pump station to jack the longitudinal moving main running car 40 and the hydraulic cylinder on the longitudinal moving auxiliary running car 41 to jack the beam to leave the bridge pier, then, driving the beam to transversely move to the longitudinal moving runway 39, thirdly, descending the piston rod of each hydraulic cylinder at the same speed, and dropping the beam on the longitudinal moving roller 44, and finally, the longitudinal moving main running car 40 and the longitudinal moving auxiliary running car 41 drive the beam to move to the two sides of the moving runway beam 9, the moving trolley 8 to move the beam, and start the hydraulic cylinder to drop the beam 8 on the beam;
step α is performed in reverse to mount the beam.
When the invention is used, the strip foundation 4 is taken as a reference, the support system 5 is taken as a framework, the new lifting device 6 realizes the lifting of the new beam 3, the beam moving trolley 8 and the beam moving runway 9 realize the conveying replacement of the beam, the beam replacing device 11 realizes the beam replacement, and the longitudinal moving device 12 realizes the replacement of the existing beam at other positions, thereby reducing the cost and time for secondarily disassembling the strip foundation 4 and the support system 5 and improving the working efficiency. The temporary vehicle rails 13 and the temporary lanes 14 are formed by splicing reinforcing steel bars, so that the disassembly and assembly efficiency is high, the speed is high, the temporary vehicle rails can be used for multiple times, the cost is low, and the communication of traffic is ensured. The length is saved by splicing the approach bridge 15 through a lane steel structure. The train indication induction plate 19 plays a role in reminding a truck driver, the rail support hydraulic cylinder 20 and the rail support cross beam 21 realize temporary support to avoid rail deformation caused by beam replacement, the rail support adjustment screw seat 22 realizes fine adjustment support to supplement the fall of the rail, the trolley traction frame 23 and the trolley traction roller 24 realize traction, or adopt a jack to carry out shoulder-staggered traction, the trolley U-shaped positioning seat 25 realizes positioning to prevent the beam from tilting, the beam moving synchronous control system 26 adopts hydraulic control, has good flexibility, realizes closed-loop control through a sensor to compensate hydraulic driving errors, the trolley displacement sensor 27 detects the position of the trolley, the lower support lifting cylinder 28 realizes long-distance lifting, the lower support bracket 29 is used for supporting, the lower support upper top cylinder 30 realizes replacement alternation of the beam, the lower support U-shaped support 31 realizes positioning to prevent the beam from tilting, the old beam rotary table 32 and the new beam rotary table 33 realize the rotation of the beam, the crane is omitted and the joist barrow 34 realizes the transfer of the joist.
Automatic processing is realized through the processing trolley 35, preprocessing is carried out through the drilling machine 36, the load of the pneumatic pick stone chiseling machine 37 is reduced, and height detection is realized through the height measuring sensor 38.
The longitudinal movement main carriage 40, the longitudinal movement auxiliary carriage 41 realize transverse advance and retreat of the beam, the longitudinal movement runway 39 moves, the longitudinal movement beam conveying hydraulic cylinder 42 realizes transfer of the beam, the longitudinal movement ground gripping support 43 grips the ground when working, and the longitudinal movement rolling roller 44 reduces friction resistance when transferring the beam.
The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use.
Claims (2)
1. A railway bridge beam replacing system is characterized by comprising
The existing assembly (10) comprises an existing beam (2) to be replaced, an existing railway track (1) laid on the existing beam (2), an existing pier installed on the ground, and an existing support (7) arranged on the existing pier and located below the existing beam (2);
the beam replacing device (11) is used for replacing the existing beam (2) with a new beam (3) of a T-shaped beam structure combined by steel and concrete; which comprises a strip foundation (4) which is arranged on the existing road below the existing beam (2) and takes a steel pipe as a module and concrete is poured inside, an isolation film arranged between the strip foundation (4) and the hardened foundation, a steel bar with the lower end implanted into the foundation and welded with the module, a support system (5) with the lower end connected with a steel pipe flange plate and the strip foundation (4) by adopting foundation bolts and built by adopting the steel pipe, and a synchronous translation system arranged at the upper end of the support system (5),
the synchronous translation system comprises a beam moving track (9) and a beam moving trolley (8) which runs on the beam moving track (9) and bears the existing beam (2) or the new beam (3);
the synchronous translation system also comprises a new lifting device (6) for jacking the new beam (3) to be above the beam moving track (9) and/or an existing lifting device for descending the existing beam (2) from the beam moving trolley (8) to be separated from the beam moving track (9);
a temporary rail (13) arranged above the existing railway rail (1) is erected above the existing beam (2); the temporary rail (13) comprises two rail steel structure approach bridges (17) which are respectively connected with the corresponding end parts of the existing railway rails (1), a rail steel structure viaduct (18) connected between the two rail steel structure approach bridges (17), and train indication induction boards (19)/induction indication lamps which are arranged in front of and behind the rail steel structure approach bridges (17) and used for guiding trains;
a temporary lane (14) is arranged on the existing road below the existing beam (2), the temporary lane (14) comprises two spiral lane steel structure splicing approach bridges (15) with respective ports communicated with the corresponding existing road and formed by splicing steel structures in sections, and a lane steel structure connecting bridge (16) arranged between the lane steel structure splicing approach bridges (15);
the support system (5) is vertically provided with a rail support hydraulic cylinder (20) positioned at two sides of the beam moving track (9), a rail support cross beam (21) arranged at the upper end of the rail support hydraulic cylinder (20), and a rail support adjusting screw seat (22) which is arranged above the rail support cross beam (21) and is used for jacking the corresponding existing railway rail (1);
a trolley traction frame (23) is arranged at the end part of the beam moving trolley (8), a trolley traction roller (24) or a reaction frame which is connected with the trolley traction frame (23) and drives the beam moving trolley (8) to move is arranged on the beam moving track (9), a trolley U-shaped positioning seat (25) used for bearing the lower end of a new beam (3) and/or an existing beam (2) is arranged on the beam moving trolley (8), a beam moving synchronous control system (26) used for jacking the new beam (3) and/or the two sides of the lower end of the existing beam (2) is arranged on the beam moving trolley (8), and a trolley displacement sensor (27) used for sensing the beam moving trolley (8) is arranged at the terminal of the beam moving track (9); the beam moving synchronous control system (26) comprises a hydraulic pump station, a control valve connected with the hydraulic pump station, an oil way distribution block connected with the control valve, at least three hydraulic cylinders which are arranged in parallel, connected with the oil way distribution block through pipelines and used for supporting the T-shaped beam, a control valve and a pressure maintaining oil way which are arranged between the hydraulic cylinders and the oil way distribution block, a displacement sensor arranged on a piston rod of the hydraulic cylinder and a PLC control unit connected with the displacement sensor;
the new lifting device (6) and/or the existing lifting device comprises a lower support lifting cylinder (28) arranged on the support system (5), a lower bracket (29) arranged on the lower support lifting cylinder (28) in a lifting way, two lower support upper jacking cylinders (30) arranged at the upper ends of the lower bracket (29), and lower support U-shaped supports (31) which are arranged on the lower support upper jacking cylinders (30), are used for positioning and contacting with the lower ends of the upper support new beams (3) or the existing beams (2) and are positioned at two sides of the beam moving trolley (8); an old beam rotating platform (32) used for rotating the existing beam (2) by ninety degrees is arranged below the lower bracket (29) of the existing lifting device and/or a new beam rotating platform (33) used for rotating the new beam (3) by ninety degrees is arranged below the lower bracket (29) of the new lifting device (6); the joist barrow (34) for transferring the new beam (3) and/or the existing beam (2) runs on the existing lane.
2. The railroad bridge girder replacement system according to claim 1, wherein a processing trolley (35) which is of a gantry structure and travels across the existing support (7) is arranged on the support system (5), the processing trolley (35) comprises drilling rigs (36) which are arranged on two sides and the top of the gantry and are used for drilling the existing support (7), the processing trolley (35) comprises stone chisels (37)/pneumatic picks which are arranged on two sides and the top of the gantry and are used for leveling the existing support (7) after drilling to a specified height, and a height measurement sensor (38) is arranged on the processing trolley (35);
a longitudinal moving device (12) is vertically arranged on the supporting system (5), the longitudinal moving device (12) comprises a longitudinal moving track (39) vertical to the beam moving track (9), a longitudinal moving main running car (40) and a longitudinal moving auxiliary running car (41) which are arranged on the longitudinal moving track (39), longitudinal moving ground grabbing support legs (43) which are respectively arranged on the longitudinal moving main running car (40) and the longitudinal moving auxiliary running car (41), longitudinal moving rolling rollers (44) which are respectively arranged on the longitudinal moving main running car (40) and the longitudinal moving auxiliary running car (41) and are in rolling contact with the lower surfaces of the existing beam (2) and/or the new beam (3), and a longitudinal beam moving hydraulic cylinder (42) which is arranged on the longitudinal moving main running car (40) and pushes the existing beam (2) and/or the new beam (3); the longitudinal moving main running vehicle (40) and the longitudinal moving auxiliary running vehicle (41) are used for transferring a beam to be replaced adjacent to the existing beam (2) onto the beam moving trolley (8) and/or the longitudinal moving main running vehicle (40) and the longitudinal moving auxiliary running vehicle (41) are used for transferring a new beam (3) bearing the beam moving trolley (8).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213108.3A CN109235291B (en) | 2018-10-18 | 2018-10-18 | Railway bridge beam replacing system |
| CN201911232535.0A CN110904862B (en) | 2018-10-18 | 2018-10-18 | Railway bridge beam replacing assembly process and beam replacing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811213108.3A CN109235291B (en) | 2018-10-18 | 2018-10-18 | Railway bridge beam replacing system |
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| CN201911232535.0A Division CN110904862B (en) | 2018-10-18 | 2018-10-18 | Railway bridge beam replacing assembly process and beam replacing process |
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| CN109235291B true CN109235291B (en) | 2020-04-07 |
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| CN201911232535.0A Active CN110904862B (en) | 2018-10-18 | 2018-10-18 | Railway bridge beam replacing assembly process and beam replacing process |
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| CN109235292B (en) * | 2018-10-18 | 2020-04-07 | 石家庄铁道大学 | Railway bridge beam replacing process |
| CN110306447A (en) * | 2019-07-10 | 2019-10-08 | 中铁武汉勘察设计研究院有限公司 | A kind of railroad bridge remodeling method |
| CN110804960B (en) * | 2019-11-26 | 2021-06-25 | 中铁第五勘察设计院集团有限公司 | Whole hole beam frame replacing method |
| CN112941996B (en) * | 2021-02-03 | 2022-05-27 | 广东高达建设工程有限公司 | Municipal road for emergency rescue and construction method |
| CN113389093A (en) * | 2021-07-23 | 2021-09-14 | 中铁五局集团第六工程有限责任公司 | Transverse moving track of railway beam moving trolley |
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| CN103410103B (en) * | 2013-07-24 | 2015-05-20 | 中铁大桥局集团有限公司 | Quick-beam change construction method for existing railway line of railroad |
| CN104631345A (en) * | 2014-12-22 | 2015-05-20 | 中国铁路总公司 | Rapid replacing method of concrete bridge beam of dual-line electric railway |
| KR101835758B1 (en) * | 2016-03-18 | 2018-03-07 | 주식회사 덕동산업 | Changing apparatus and method for girder of railway plate girder bridge |
| JP6493322B2 (en) * | 2016-07-15 | 2019-04-03 | Ｊｆｅエンジニアリング株式会社 | Floor slab replacement device and floor slab replacement method |
| CN106702912A (en) * | 2016-11-16 | 2017-05-24 | 中铁六局集团天津铁路建设有限公司 | Construction method of dismantling old beam top and introducing new bridge on existing railway |
| CN107724254A (en) * | 2017-08-23 | 2018-02-23 | 北京公联洁达公路养护工程有限公司 | The synchronization of jacking up of construction of bridge T beam changes construction method with making |
| CN107675633A (en) * | 2017-09-27 | 2018-02-09 | 中铁十四局集团有限公司 | The method that the existing whole hole of bridge is changed |
| CN108487089B (en) * | 2018-04-03 | 2019-08-02 | 锦州铁道勘察设计院有限公司 | A method of railroad bridge is removed and set up on hillside |
| CN108611994B (en) * | 2018-05-22 | 2020-05-12 | 昆山市交通航务工程有限公司 | Equipment for bridge replacement and construction method |
| CN109235292B (en) * | 2018-10-18 | 2020-04-07 | 石家庄铁道大学 | Railway bridge beam replacing process |
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| CN110904862A (en) | 2020-03-24 |
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Effective date of registration: 20230811 Address after: Office Building 11D-2342, Block A, Hechuan Building, No. 235 Nanjing Road, Nanyingmen Street, Heping District, Tianjin, 300041 Patentee after: Tianjin Dongsheng Transportation Technology Co.,Ltd. Address before: 050000 17 North East Ring Road, Shijiazhuang, Hebei Patentee before: SHIJIAZHUANG TIEDAO University |