CN114960406A - Bridge abutment and prefabricated box girder connecting structure of bridge - Google Patents
Bridge abutment and prefabricated box girder connecting structure of bridge Download PDFInfo
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- CN114960406A CN114960406A CN202210839630.2A CN202210839630A CN114960406A CN 114960406 A CN114960406 A CN 114960406A CN 202210839630 A CN202210839630 A CN 202210839630A CN 114960406 A CN114960406 A CN 114960406A
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims description 13
- 230000005484 gravity Effects 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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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
- E01D19/00—Structural or constructional details of 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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Abstract
The application relates to a bridge abutment and prefabricated box girder connecting structure of a bridge, and relates to the technical field of bridge abutments. It is including being used for abutment and the case roof beam that links to each other with the bridgehead road bed, be provided with on the abutment and be used for the installation mechanism of adjusting well with case roof beam and abutment, installation mechanism includes positioning element and the subassembly of accepting that is used for supporting the case roof beam, it places on the bridgehead road bed through the mounting bracket to accept the subassembly, positioning element all links to each other with the mounting bracket with accepting the subassembly, it adjusts well with the abutment to accept the subassembly, it passes through running gear with positioning element and links to each other, running gear rotates with the mounting bracket to be connected, it removes to accept the subassembly, drive running gear rotates, drive positioning element removes to the direction that is close to or keeps away from the case roof beam. This application has the higher effect of precision that box girder and abutment were adjusted well.
Description
Technical Field
The application relates to the field of abutment, especially relate to a connection structure of abutment and prefabricated box girder of bridge.
Background
And the bridge abutments are positioned at two ends of the bridge and used for supporting the superstructure of the bridge and connecting with the embankment. The function of the device is to transmit the load of the upper structure of the bridge to the foundation, and also has the functions of resisting the filling pressure behind the abutment, stabilizing the bridge head roadbed and connecting the bridge head circuit and the bridge upper circuit reliably and stably. The abutment is generally of a stone or plain concrete structure, while the light abutment is of a reinforced concrete structure. And the support structure is arranged at the connection part of the bridge and the embankment at the end of the shore or the bridge hole. It serves to support the superstructure and to connect the two-shore roads while also retaining the filling behind the abutment. The abutment has various forms, and is mainly divided into a gravity abutment, a light abutment, a frame abutment, a combined abutment, a tension abutment and the like.
In the related technology, a crane binds a box girder through a steel cable and hoists the box girder to the upper part of an abutment, so that the box girder is aligned with the abutment, and then the crane is utilized to drive the box girder to move towards the direction close to the abutment until the box girder is abutted against the abutment, and the installation and fixation of the box girder on the abutment are completed.
The related art described above has the following drawbacks: when the crane uses the steel cable to lift the box girder to the half-air, the steel cable is easy to shake under the action of wind power, and the alignment precision of the box girder and the abutment is reduced, so that the position deviation of the box girder fixedly arranged on the abutment is large, and the improvement is needed.
Disclosure of Invention
In order to improve the lower problem of precision that box girder and abutment were adjusted well, this application provides a connection structure of abutment and prefabricated box girder of bridge.
The application provides a connection structure of abutment and prefabricated box girder of bridge adopts following technical scheme:
the utility model provides a connection structure of abutment and prefabricated box girder of bridge, is including being used for abutment and the case roof beam that links to each other with the bridgehead road bed, be provided with on the abutment and be used for the installation mechanism of adjusting well case roof beam and abutment, installation mechanism includes locating component and is used for supporting the subassembly of accepting of case roof beam, accept the subassembly and place on the bridgehead road bed through the mounting bracket, locating component all links to each other with the mounting bracket with accepting the subassembly, it adjusts well to accept subassembly and abutment, it passes through rotating gear with locating component and links to each other to accept the subassembly, rotating gear rotates with the mounting bracket and is connected, it removes to accept the subassembly, drives rotating gear rotates, drives locating component removes to the direction that is close to or keeps away from the case roof beam.
By adopting the technical scheme, the mounting frame is placed on the bridge head roadbed, the box girder is then hung on the bearing assembly, the gravity of the box girder exerts a force on the bearing assembly, the force is extruded towards the direction close to the abutment, the bearing assembly is enabled to move towards the direction close to the abutment, the rotating gear is driven to rotate, the positioning assembly is enabled to move towards the direction close to the box girder until the positioning assembly abuts against the side wall of the box girder, the alignment of the box girder and the bearing assembly can be completed, the bearing assembly plays a supporting role in the box girder, the box girder is enabled not to slide when the box girder does not abut against the abutment, the positioning assembly plays an abutting relay for the box girder, the box girder is enabled to be maintained at the position aligned with the abutment, and the accuracy of the alignment of the box girder and the abutment is improved.
Optionally, the supporting assembly comprises a supporting plate, a supporting spring and a rotating rack, the supporting plate is slidably connected with the side wall of the mounting rack, the supporting spring is fixedly connected with the mounting rack and used for pushing the supporting plate to the direction far away from the abutment, the rotating rack is vertically arranged and fixedly connected with the supporting plate, and the rotating rack is meshed with the rotating gear.
By adopting the technical scheme, the box girder is lifted above the bearing plate, then the box girder is moved towards the direction close to the bearing plate until the box girder is abutted against the bearing plate, the force for lifting the box girder is cancelled, under the action of gravity, the box girder applies a force extruding towards the direction close to the abutment to the bearing plate, so that the bearing plate compresses the supporting spring and moves towards the direction close to the abutment to drive the rotating rack to move towards the direction close to the abutment, so that the rotating gear rotates, the positioning assembly moves towards the direction close to the box girder and pushes the box girder, the center of the box girder is on the central axis of the width direction of the bearing plate, namely the box girder is aligned with the bearing plate, the box girder is aligned with the abutment, the positioning assembly and the bearing plate play a role in limiting the box girder, so that the box girder cannot shake, namely the aligned position of the box girder and the abutment cannot shift, the accuracy of aligning of box girder and abutment has been improved.
Optionally, locating component includes two locating plates and two conveyer belts, two the locating plate uses the axis of running gear to be axisymmetric, locating plate and conveyer belt one-to-one, the action wheel running gear coaxial fixation of conveyer belt, locating plate and drive belt fixed connection, the running gear rotates, drives two the locating plate is simultaneously to the direction removal that is close to the running gear axis.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, and under the action of gravity, compress supporting spring, make and accept the board and remove to the direction that is close to the abutment, thereby make the rotation rack drive the running gear and rotate, and then make two conveyer belts do the syntropy rotation simultaneously, drive two locating plates and remove to the direction that is close to the case roof beam simultaneously, and promote the case roof beam and remove to the direction that is close to accepting the board center, one side that is close to accepting the board center until two locating plates all with the lateral wall looks butt of case roof beam, at this moment, the center of case roof beam is on accepting the axis of board width direction, case roof beam and abutment are adjusted well promptly, it plays supporting role to accept the board, two locating plates play limiting displacement to the case roof beam, make and accept the board can not take place the skew on the position that adjusts well, the precision that case roof beam and abutment are adjusted well has been improved.
Optionally, the positioning plate is provided with a propelling mechanism, the propelling mechanism comprises a propelling assembly and a clamping assembly, the propelling assembly and the clamping assembly are both connected with the positioning plate, the propelling assembly and the clamping assembly are connected through a propelling plate, the propelling plate is connected with the positioning plate in a sliding manner, the propelling assembly moves to drive the propelling plate to move, and the clamping assembly drives the box girder to move towards the direction close to or away from the abutment.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, two locating plates all with the lateral wall looks butt back of case roof beam, the lateral wall looks butt of centre gripping subassembly and case roof beam, play the extrusion force to the case roof beam lateral wall, make the both sides of case roof beam receive the interact power, centre gripping subassembly centre gripping fixed case roof beam promptly, utilize the propulsion subassembly to promote the propulsion board to remove to the direction that is close to the abutment after that, make the centre gripping subassembly drive the case roof beam and remove to the direction that is close to the case roof beam, until case roof beam bottom and abutment looks butt, thereby make the case roof beam align and place on the abutment with the abutment, whole removal in-process, the difficult emergence skew of case roof beam, the precision that case roof beam and abutment were adjusted well has been improved.
Optionally, the propulsion assembly includes propulsion driving piece and two baffles, two the baffle uses locating plate length direction's axis as the axial symmetry, one side that the baffle is close to the locating plate center is provided with and supplies the propulsion board to insert the slot of establishing, the propulsion board adaptation is inserted and is established in the slot to slide in the slot, propulsion driving piece and locating plate fixed connection, the output of propulsion driving piece links to each other with the propulsion board for drive propulsion board removes along the length direction of locating plate.
Through adopting the above technical scheme, place on accepting the board when the case roof beam, two locating plates all with the lateral wall looks butt of case roof beam after, the case roof beam is adjusted well with the abutment, the fixed case roof beam of centre gripping subassembly centre gripping, start the propulsion driving piece, make propulsion board move toward the direction that is close to the abutment along the length direction of locating plate, thereby exert thrust to the centre gripping subassembly, move the centre gripping subassembly to the direction that is close to the abutment, drive the case roof beam and move to the direction that is close to the abutment, until case roof beam and abutment looks butt, and place on the abutment, the removal in-process of case roof beam is under the centre gripping of centre gripping subassembly is fixed, be difficult for taking place the skew, make the case roof beam finally place the position on the abutment and the abutment are adjusted well, the precision that case roof beam and abutment were adjusted well has been improved.
Optionally, the centre gripping subassembly includes the supporting rod, it is provided with the propulsion hole that supplies the supporting rod to wear to establish to run through on the propulsion board, the one end that the propulsion hole is close to the rotating gear sets up to the direction slope that is close to the abutment, the locating plate runs through along the length direction of locating plate and is provided with the locating hole that supplies the supporting rod to wear to establish, the locating plate runs through along the width direction of locating plate and is provided with the fixed orifices that supplies the supporting rod to wear to establish, the one end intercommunication of rotating gear is kept away from to fixed orifices and locating hole, the supporting rod is connected with and is used for driving the supporting rod to being close to or keeping away from the fixed establishment of case roof beam.
By adopting the technical scheme, when the box girder is placed on the bearing plate, after two positioning plates are abutted against the side wall of the box girder, the box girder is aligned with the abutment, the two clamping rods simultaneously move towards the direction close to the center of the box girder under the action of the fixing mechanism until the clamping rods are abutted against the side wall of the box girder and exert the force of extruding the side wall of the box girder towards the direction close to the center of the box girder, so that the symmetrical side walls of the box girder receive the interaction force, the two clamping rods play a role in clamping and fixing the box girder, then the propelling driving piece is started, the propelling plate moves towards the direction close to the abutment, the inner wall of the slot is abutted against the side wall of the propelling plate to play a limiting role, the propelling plate only can move along the length direction of the positioning plates and is not easy to deviate, the side walls of the clamping rods are abutted against the inner wall of the propelling hole, the propelling plate moves, the inner wall of the propelling hole close to the rotating gear exerts the thrust on the clamping rods, the clamping rods move in the direction far away from the rotating gear along the length direction of the positioning rod, when the clamping rods move to one end, far away from the rotating gear, of the positioning hole, the inner wall, far away from the rotating gear, of the propelling hole and the clamping rods play a supporting role, so that the clamping rods cannot directly move in the direction close to the abutment along the length direction of the fixing hole under the action of gravity, the inner wall of the propelling hole plays a buffering role, the steel beam is not easy to fall quickly and collide with the abutment, the box girder is not easy to damage, the propelling driving piece continues to drive the propelling plate to move, the propelling hole inner wall pushes the clamping rods to move in the length direction of the fixing hole and also moves in the direction close to the abutment along the length of the propelling hole until the bottom wall of the box girder is abutted against the abutment and placed on the abutment, and the box girder is clamped and fixed by the two clamping rods in the moving process, the box girder is not easy to shift, so that the position of the box girder finally placed on the abutment is aligned with the abutment, and the alignment precision of the box girder and the abutment is improved.
Optionally, the fixing mechanism includes a fixing component and a driving component, the fixing component is connected to the clamping rod, the fixing component is connected to the driving component, and the driving component rotates to drive the fixing component to move towards a direction close to or away from the center of the bearing plate.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, two locating plates all with the lateral wall looks butt back of case roof beam, the case roof beam is adjusted well with the abutment, rotates drive assembly for fixed subassembly drives the supporting rod and removes to the direction that is close to the case roof beam, until two supporting rods and case roof beam lateral wall looks butt, and exert the extrusion force to the lateral wall of case roof beam. Make the case roof beam receive relative effort to make two supporting rod centre gripping fixed case roof beams, fixed subassembly makes the difficult emergence of supporting rod remove, and the supporting rod keeps the state of extrusion case roof beam lateral wall promptly, thereby when making the propulsion board move the supporting rod and remove, can drive the case roof beam simultaneously and remove, stability is higher.
Optionally, the fixed component comprises two fixed plates, the two fixed plates are axisymmetric with the central axis of the receiving plate, the fixed plates are in one-to-one correspondence with the clamping rods, the fixed plates are fixedly connected with the clamping rods, the two fixed plates are arranged at two ends of the driving component, and the driving component rotates to drive the two fixed plates to move towards the direction close to or away from the center of the receiving plate.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, two locating plates all with the lateral wall looks butt back of case roof beam, the case roof beam is adjusted well with the abutment, rotate the drive assembly for two fixed plates remove simultaneously, can drive two supporting rods and remove to the direction that is close to the case roof beam center simultaneously, until two supporting rods and case roof beam lateral wall looks butt, and exert the extrusion force to the lateral wall of case roof beam. Make the case roof beam receive relative effort to make two supporting rod centre gripping fixed case roof beams, stall drive assembly, fixed plate stop moving, thereby make two supporting rods maintain the state of extrusion case roof beam lateral wall, two supporting rods and case roof beam fixed connection promptly, when making propulsion plate drive the supporting rod and remove, can drive the case roof beam simultaneously and remove, stability is higher.
Optionally, the drive assembly includes a rotation driving part, a driving rod and a drive plate, the driving rod is inserted in the drive plate and is connected with the drive plate in a rotating mode, the rotation driving part is connected with one end of the drive plate, an output end of the rotation driving part is connected with the driving rod and is used for driving the driving rod to rotate, threaded connections are arranged at two ends of the driving rod, the thread structures at two ends of the driving rod are opposite in rotating direction, the fixing plate is arranged at two ends of the driving rod in a penetrating mode and is connected with the fixing plate in a threaded mode, and the fixing plate is connected with the drive plate in a sliding mode.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, two locating plates all with the lateral wall looks butt back of case roof beam, the case roof beam is adjusted well with the abutment, starts to rotate the driving piece for the actuating lever rotates, because of actuating lever and fixed plate threaded connection, makes two fixed plates remove to the direction that is close to the case roof beam center simultaneously, until two supporting rods and case roof beam lateral wall looks butt, and exert the extrusion force to the lateral wall of case roof beam. Make the case roof beam receive relative effort to make two supporting rod centre gripping fixed case roof beams, the stall driving piece possesses certain self-locking function because of the screw thread, makes the fixed plate can not take place to remove along the length direction of actuating lever, thereby makes two supporting rods maintain the state of extrusion case roof beam lateral wall, two supporting rods and case roof beam fixed connection promptly, when making the propulsion plate drive the supporting rod removal, can drive the case roof beam removal simultaneously, stability is higher.
Optionally, the side wall of the bearing plate is provided with a guide block, the mounting frame is provided with a guide groove for the guide block to be inserted into along the height direction, and the guide block is inserted into the guide groove in a matching manner and slides in the guide groove.
Through adopting above-mentioned technical scheme, place on accepting the board when the case roof beam, and compress supporting spring, make and accept the board and remove to the direction that is close to the abutment, the guide block slides in the guide way promptly, because of the lateral wall of guide block and the inner wall looks butt of guide way, the inner wall of guide way plays limiting displacement, make and accept the board and remain the difficult emergence slope of horizontality all the time, and accept the board at the removal in-process, the rotation rack can not separate with the running gear, reduced because of accepting the board slope, the rotation rack separates with the running gear, it can't drive running gear pivoted possibility to accept the board removal.
In summary, the present application includes at least one of the following benefits:
1. the mounting frame is placed on a bridge head roadbed, then the box girder is hung on the bearing component, the gravity of the box girder exerts a force on the bearing component, which is extruded in the direction close to the abutment, so that the bearing component moves in the direction close to the abutment and drives the rotating gear to rotate, and the positioning component moves in the direction close to the box girder until the positioning component abuts against the side wall of the box girder, and therefore, the alignment of the box girder and the bearing component can be completed;
2. the box girder is lifted to the upper part of the bearing plate, then the box girder is moved to the direction close to the bearing plate until the box girder is abutted against the bearing plate, the force for lifting the box girder is removed, under the action of gravity, the box girder exerts a force on the bearing plate to extrude towards the direction close to the abutment, so that the bearing plate compresses the supporting spring and moves towards the direction close to the abutment to drive the rotating rack to move towards the direction close to the abutment, thereby the rotating gear rotates, the positioning component moves towards the direction close to the box girder and pushes the box girder, the center of the box girder is on the central axis of the width direction of the bearing plate, namely, the box girder and the bearing plate are aligned, thereby realizing the alignment of the box girder and the abutment, the positioning component and the bearing plate play a role in limiting the box girder, so that the box girder can not shake, namely, the alignment position of the box girder and the abutment can not deviate, and the alignment precision of the box girder and the abutment is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic structural diagram for illustrating a connection relationship between the thrust plate and the positioning plate in the embodiment of the present application;
fig. 3 is a schematic structural diagram for showing a connection relationship between the driving rod and the driving plate in the embodiment of the present application.
In the figure: 1. an abutment; 2. a box girder; 3. an installation mechanism; 4. a mounting frame; 40. a guide groove; 31. a positioning assembly; 311. positioning a plate; 3112. positioning holes; 3113. a fixing hole; 312. a conveyor belt; 32. a receiving assembly; 321. a bearing plate; 3211. a guide block; 322. a support spring; 323. rotating the rack; 5. a rotating gear; 6. a propulsion mechanism; 61. a propulsion assembly; 611. propelling the driving member; 612. a baffle plate; 6120. a slot; 62. a clamping assembly; 621. a clamping rod; 7. a propulsion plate; 70. a push-in hole; 8. a fixing mechanism; 81. a fixing assembly; 811. a fixing plate; 82. a drive assembly; 821. rotating the driving member; 822. a drive rod; 823. a drive plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses abutment and prefabricated box girder's of bridge connection structure. Referring to fig. 1 and 2, the connection structure of the bridge abutment and the prefabricated box girder comprises an abutment 1 and a box girder 2 for connecting with a bridge head roadbed, an installation mechanism 3 for aligning the box girder 2 and the abutment 1 is arranged on the abutment 1, the installation mechanism 3 comprises a positioning component 31 and a receiving component 32 for supporting the box girder 2, the receiving component 32 and the positioning component 31 are connected through a rotating gear 5, the receiving component 32 comprises a receiving plate 321, a supporting spring 322 and a rotating rack 323, the receiving plate 321 is aligned with the abutment 1, a guide block 3211 is integrally formed on the side wall of the receiving plate 321, a guide groove 40 is formed in the mounting frame 4 along the height direction, the guide block 3211 is inserted in the guide groove 40 in a matching manner and slides in the guide groove 40, one end of the supporting spring 322 is welded and fixed with the bottom wall of the mounting frame 4, the other end of the supporting spring 322 is welded and fixed with the bottom wall of the receiving plate 321, the side wall of the rotating rack 323 is welded and fixed with the side wall of the receiving plate 321, the rotating rack 323 is vertically arranged and is abutted to and slid by the side wall of the mounting rack 4, and the rotating rack 323 is meshed with the rotating gear 5.
Referring to fig. 1 and 3, the positioning assembly 31 includes two positioning plates 311 and two conveyor belts 312, the two positioning plates 311 are axisymmetric with the central axis of the rotating gear 5, the positioning plates 311 correspond to the conveyor belts 312 one to one, the driving wheel of the conveyor belt 312 rotates the gear 5 coaxially, one of the positioning plates 311 is fixed with one side of the corresponding conveyor belt 312 far away from the bridge abutment 1 by adhesion, the other positioning plate 311 is fixed with one side of the corresponding conveyor belt 312 near the bridge abutment 1 by adhesion, the rotating gear 5 rotates, and the two positioning plates 311 are driven to move towards the direction close to the central axis of the rotating gear 5 at the same time.
Placing the mounting frame 4 on the bridge head roadbed, then hanging the box girder 2 above the bearing plate 321, moving the box girder 2 to the direction close to the bearing plate 321 until the box girder 2 is abutted against the bearing plate 321, canceling the force for hoisting the box girder 2, applying a force to the bearing plate 321 by the box girder 2 to extrude in the direction close to the bridge abutment 1 under the action of gravity, so that the bearing plate 321 compresses the supporting spring 322 and moves in the direction close to the bridge abutment 1, namely the guide block 3211 slides in the guide groove 40, because the side wall of the guide block 3211 is abutted against the inner wall of the guide groove 40, the inner wall of the guide groove 40 has a limiting function, so that the bearing plate 321 is always kept horizontal and is not easy to incline, and in the moving process of the bearing plate 321, the rotating rack 323 is always engaged with the rotating gear 5, the bearing plate 321 moves to drive the rotating rack 323 to move in the direction close to the bridge abutment 1, thereby rotating the rotating gear 5, and then make two conveyer belts 312 do the syntropy simultaneously and rotate, drive two locating plates 311 simultaneously to the direction removal that is close to case roof beam 2, and promote case roof beam 2 to the direction removal that is close to the center of accepting board 321, until two locating plates 311 all with the lateral wall looks butt of case roof beam 2 near one side at the center of accepting board 321 center, at this moment, the center of case roof beam 2 is on the axis of accepting board 321 width direction, case roof beam 2 aligns with abutment 1 promptly, it plays the supporting role to accept board 321, two locating plates 311 play limiting displacement to case roof beam 2, make and accept board 321 can not take place the skew on the position that aligns with accepting board 321, the precision that case roof beam 2 and abutment 1 are adjusted well has been improved.
Referring to fig. 1 and 2, the positioning plate 311 is provided with a propelling mechanism 6, the propelling mechanism 6 includes a propelling component 61 and a clamping component 62, the propelling component 61 and the clamping component 62 are connected through a propelling plate 7, the propelling component 61 includes a propelling driving component 611 and two baffle plates 612, the two baffle plates 612 are axisymmetric with respect to a central axis of the positioning plate 311 in the length direction, the side walls of the baffle plates 612 and the side walls of the positioning plate 311 are integrally formed, one side of the baffle plate 612 close to the center of the positioning plate 311 is provided with a slot 6120 in the length direction of the baffle plate 612, the propelling plate 7 is inserted into the slot 6120 in a matching manner, and slides in the slot 6120, and the driving member 611 is fixedly connected to the positioning plate 311 by a bolt, in the embodiment of the present application, the pushing driving element 611 is an electric push rod, and the output end of the pushing driving element 611 is connected to the pushing plate 7 for driving the pushing plate 7 to move along the length direction of the positioning plate 311.
Referring to fig. 1 and 2, the clamping assembly 62 includes a clamping rod 621, the length direction along the propulsion plate 7 on the propulsion plate 7 runs through and has been seted up propulsion hole 70, the one end that propulsion hole 70 is close to the rotating gear 5 sets up to the direction slope that is close to abutment 1, locating plate 311 runs through along the length direction of locating plate 311 and has been seted up locating hole 3112, locating plate 311 runs through along the width direction of locating plate 311 and has been seted up fixed orifices 3113, the one end that the abutment 1 was kept away from to fixed orifices 3113 and the one end intercommunication that the rotating gear 5 was kept away from to locating hole 3112, clamping rod 621 is connected with and is used for driving clamping rod 621 to the fixed establishment 8 that is close to or keeps away from box girder 2.
When the box girder 2 is placed on the bearing plate 321, after the two positioning plates 311 are abutted against the side walls of the box girder 2, the box girder 2 is aligned with the abutment 1, the two clamping rods 621 move towards the direction close to the center of the box girder 2 under the action of the fixing mechanism 8 until the clamping rods 621 are abutted against the side walls of the box girder 2 and apply a force that extrudes the side walls of the box girder 2 towards the direction close to the center of the box girder 2, so that the symmetrical side walls of the box girder 2 are subjected to an interaction force, thereby the two clamping rods 621 play a role in clamping and fixing the box girder 2, then the propelling driving part 611 is started, so that the propelling plate 7 moves towards the direction close to the abutment 1, the inner wall of the slot 6120 is abutted against the side wall of the propelling plate 7 to play a limiting role, so that the propelling plate 7 can only move along the length direction of the positioning plates 311 and is not easy to shift, the side walls of the clamping rods are abutted against the inner wall of the propelling hole 70, the pushing plate 7 moves, the inner wall of the pushing hole 70 close to the rotating gear 5 applies a pushing force to the clamping rod 621, so that the clamping rod 621 moves towards the direction far away from the rotating gear 5 along the length direction of the positioning rod, when the clamping rod 621 moves to one end of the positioning hole 3112 far away from the rotating gear 5, the inner wall of one side of the pushing hole 70 far away from the rotating gear 5 and the clamping rod 621 play a supporting role, so that the clamping rod 621 cannot directly move towards the direction close to the abutment 1 along the length direction of the fixing hole 3113 under the action of gravity, the inner wall of the pushing hole 70 plays a buffering role, so that the steel beam is not easy to rapidly fall and collide with the abutment 1, so that the box girder 2 is not easy to be damaged, the pushing driving part 611 continuously drives the pushing plate 7 to move, so that the inner wall of the pushing hole 70 pushes the clamping rod 621 to move along the length direction of the fixing hole 3113 and simultaneously moves towards the direction close to the abutment 1 along the length direction of the pushing hole 70, until 2 diapire and abutment 1 looks butt of case roof beam 2 to place on abutment 1, the difficult skew that takes place under two supporting rod 621's centre gripping is fixed at the removal in-process of case roof beam 2, make the position that case roof beam 2 finally placed on abutment 1 align with abutment 1, improved the precision that case roof beam 2 and abutment 1 were aligned.
Referring to fig. 1 and 2, the fixing mechanism 8 includes a fixing component 81 and a driving component 82, the fixing component 81 includes two fixing plates 811, the two fixing plates 811 are axisymmetrical about a central axis of the receiving plate 321, the fixing plates 811 correspond to the clamping rods 621 one by one, and the fixing plates 811 are welded and fixed to the clamping rods 621.
Referring to fig. 1 and 3, drive assembly 82 includes rotary driving member 821, driving lever 822 and drive plate 823, drive lever 822 is inserted in drive plate 823, and with drive plate 823 rotate and be connected, rotary driving member 821 passes through the bolt with the one end of drive plate 823 and links to each other, in this application embodiment, rotary driving member 821 adopts the motor, rotary driving member 821's output and drive lever 822 coaxial fixed, be used for driving drive lever 822 to rotate, both ends of drive lever 822 all are provided with threaded connection, the helicitic texture at drive lever 822 both ends is turned to opposite, one of them fixed plate 811 and the one end threaded connection of drive lever 822, another fixed plate 811 and the other end threaded connection of drive lever 822, fixed plate 811 and drive plate 823 sliding connection.
When the box girder 2 is placed on the bearing plate 321, after the two positioning plates 311 are abutted to the side walls of the box girder 2, the box girder 2 is aligned with the abutment 1, the rotary driving member 821 is started to rotate the driving rod 822, and the two fixing plates 811 are connected with the fixing plates 811 through threads so as to move towards the direction close to the center of the box girder 2 at the same time until the two clamping rods 621 are abutted to the side walls of the box girder 2 and apply extrusion force to the side walls of the box girder 2. Make box beam 2 receive relative effort, thereby make two supporting rod 621 centre gripping fixed box beam 2, stop rotating driving piece 821, possess certain self-locking function because of the screw thread, make fixed plate 811 can not take place to remove along the length direction of actuating lever 822, thereby make two supporting rod 621 maintain the state of extrusion box beam 2 lateral wall, two supporting rod 621 and box beam 2 fixed connection promptly, when making propulsion plate 7 drive supporting rod 621 remove, can drive box beam 2 simultaneously and remove, stability is higher.
The implementation principle of the connection structure of the bridge abutment and the prefabricated box girder of the embodiment of the application is as follows: placing the mounting frame 4 on the bridge head roadbed, then lifting the box girder 2 to the upper part of the bearing plate 321, moving the box girder 2 to the direction close to the bearing plate 321 until the box girder 2 is abutted against the bearing plate 321, canceling the force for lifting the box girder 2, applying a force to the bearing plate 321 by the box girder 2 to extrude in the direction close to the abutment 1 under the action of gravity, so that the bearing plate 321 compresses the supporting spring 322 and moves in the direction close to the abutment 1, driving the rotating rack 323 to move in the direction close to the abutment 1, thereby rotating the rotating gear 5, further simultaneously making the two conveyor belts 312 rotate in the same direction, driving the two positioning plates 311 to simultaneously move in the direction close to the box girder 2, pushing the box girder 2 to move in the direction close to the center of the bearing plate 321, until one sides of the two positioning plates 311 close to the center of the bearing plate 321 are abutted against the side walls of the box girder 2, at this time, the center of the box girder 2 is on the central axis in the width direction of the bearing plate 321, that is, the box girder 2 is aligned with the abutment 1, the rotation driving member 821 is started to rotate the driving lever 822, and the driving lever 822 is connected with the fixing plate 811 by the screw threads, so that the two fixing plates 811 are simultaneously moved toward the direction close to the center of the box girder 2 until the two clamping rods 621 abut against the side wall of the box girder 2, and a pressing force is applied to the side wall of the box girder 2. The box beam 2 is subjected to a relative acting force, so that the two clamping rods 621 clamp and fix the box beam 2, the driving part 821 is stopped rotating, and the fixing plate 811 cannot move along the length direction of the driving rod 822 due to the fact that the threads have a certain self-locking function, so that the two clamping rods 621 maintain the state of extruding the side wall of the box beam 2;
then, the driving and pushing member 611 is started to move the pushing plate 7 toward the direction close to the abutment 1, the inner wall of the slot 6120 abuts against the side wall of the pushing plate 7 to limit the movement of the pushing plate 7 only along the length direction of the positioning plate 311, the pushing plate 7 is not likely to shift, the side wall of the clamping rod 621 abuts against the inner wall of the pushing hole 70, the pushing hole 70 is close to the inner wall of the rotating gear 5 to push the clamping rod 621, so that the clamping rod 621 moves along the length direction of the positioning plate toward the direction away from the rotating gear 5, when the clamping rod 621 moves to the end of the positioning hole 3112 away from the rotating gear 5, the inner wall of the pushing hole 70 at the side away from the rotating gear 5 and the clamping rod 621 play a supporting role, so that the clamping rod 621 cannot directly move along the length direction of the fixing hole 3113 toward the direction close to the abutment 1 under the action of gravity, and the inner wall of the pushing hole 70 plays a buffering role, make the girder steel be difficult for falling fast and take place the striking with abutment 1, thereby make the difficult emergence of case roof beam 2 damage, propulsion driving piece 611 continues to drive propulsion board 7 and removes, make propulsion hole 70 inner wall promote the supporting rod 621 along fixed orifices 3113 length direction when also remove to the direction that is close to abutment 1 along the length of propulsion hole 70, until 2 diapalls of case roof beam and abutment 1 looks butt, and place on abutment 1, the removal in-process of case roof beam 2 is under the centre gripping of two supporting rods 621 is fixed, be difficult for taking place the skew, make the position that case roof beam 2 finally placed on abutment 1 align with abutment 1, the precision that case roof beam 2 and abutment 1 were adjusted well has been improved.
After box beam 2 was adjusted well and is placed on abutment 1, start and rotate driving piece 821 for actuating lever 822 reversal drives two supporting rod 621 and removes to the direction of keeping away from box beam 2 center, until supporting rod 621 and the separation of box beam 2 lateral wall, can take away whole installation mechanism 3, the simple operation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a connection structure of abutment and prefabricated box girder of bridge, includes abutment (1) and box girder (2) that are used for linking to each other with the bridgehead road bed, its characterized in that: be provided with on abutment (1) and be used for installing mechanism (3) that case roof beam (2) and abutment (1) were adjusted well, installation mechanism (3) include locating component (31) and be used for supporting accepting subassembly (32) of case roof beam (2), accept subassembly (32) and place on the bridgehead road bed through mounting bracket (4), locating component (31) all link to each other with mounting bracket (4) with accepting subassembly (32), accept subassembly (32) and adjust well with abutment (1), it links to each other through rotating gear (5) to accept subassembly (32) and locating component (31), rotating gear (5) rotate with mounting bracket (4) and are connected, it removes to accept subassembly (32), drives rotating gear (5) rotate, drive locating component (31) are to the direction removal that is close to or keeps away from case roof beam (2).
2. The bridge abutment and precast box girder connection structure of claim 1, wherein: accept subassembly (32) including accepting board (321), supporting spring (322) and rotation rack (323), accept the lateral wall sliding connection of board (321) and mounting bracket (4), supporting spring (322) and mounting bracket (4) fixed connection for will accept board (321) and impel to the direction of keeping away from abutment (1), rotate the vertical setting of rack (323), and with accept board (321) fixed connection, it meshes with running gear (5) mutually to rotate rack (323).
3. The bridge abutment and precast box girder connection structure of claim 2, wherein: locating component (31) includes two locating plates (311) and two conveyer belts (312), two locating plate (311) uses the axis of running gear (5) to be axisymmetric, locating plate (311) and conveyer belt (312) one-to-one, the action wheel running gear (5) coaxial fixation of conveyer belt (312), locating plate (311) and drive belt fixed connection, running gear (5) rotate, drive two locating plate (311) are simultaneously to the direction removal that is close to running gear (5) axis.
4. The bridge abutment and precast box girder connection structure of claim 3, wherein: be provided with advancing mechanism (6) on locating plate (311), advancing mechanism (6) are including propulsion subassembly (61) and clamping component (62), propulsion subassembly (61) and clamping component (62) all link to each other with locating plate (311), propulsion subassembly (61) and clamping component (62) link to each other through propulsion board (7), propulsion board (7) and locating plate (311) sliding connection, propulsion subassembly (61) remove, drive propulsion board (7) remove, make clamping component (62) drive case roof beam (2) remove to the direction of being close to or keeping away from abutment (1).
5. The bridge abutment and precast box girder connection structure of claim 4, wherein: the propelling component (61) comprises a propelling driving part (611) and two baffle plates (612), the two baffle plates (612) are axisymmetric with the central axis of the positioning plate (311) in the length direction, one side of the baffle plates (612) close to the center of the positioning plate (311) is provided with a slot (6120) for the propelling plate (7) to be inserted, the propelling plate (7) is inserted in the slot (6120) and slides in the slot (6120), the propelling driving part (611) is fixedly connected with the positioning plate (311), the output end of the propelling driving part (611) is connected with the propelling plate (7) and is used for driving the propelling plate (7) to move along the length direction of the positioning plate (311).
6. The bridge abutment and precast box girder connection structure of claim 5, wherein: centre gripping subassembly (62) include supporting rod (621), it is provided with the propulsion hole (70) that supply supporting rod (621) to wear to establish to run through on propulsion plate (7), propulsion hole (70) are close to the one end of running gear (5) and set up to the direction slope that is close to abutment (1), locating plate (311) run through along the length direction of locating plate (311) and are provided with locating hole (3112) that supply supporting rod (621) to wear to establish, locating plate (311) run through along the width direction of locating plate (311) and are provided with fixed orifices (3113) that supply supporting rod (621) to wear to establish, the one end intercommunication of running gear (5) is kept away from with locating hole (3112) in fixed orifices (3113), supporting rod (621) are connected with and are used for driving supporting rod (621) to being close to or keeping away from fixed establishment (8) of case roof beam (2).
7. The bridge abutment and precast box girder connection structure of claim 6, wherein: fixed establishment (8) are including fixed subassembly (81) and drive assembly (82), fixed subassembly (81) link to each other with supporting rod (621), fixed subassembly (81) link to each other with drive assembly (82), drive assembly (82) rotate, drive fixed subassembly (81) are to being close to or keeping away from the direction removal of accepting board (321) center.
8. The bridge abutment and precast box girder connection structure of claim 7, wherein: fixed subassembly (81) include two fixed plates (811), two fixed plate (811) are axisymmetric with the axis of accepting board (321), fixed plate (811) and holding rod (621) one-to-one, fixed plate (811) and holding rod (621) fixed connection, two the both ends of drive assembly (82) are located in fixed plate (811), work as drive assembly (82) rotate, drive two fixed plate (811) are to being close to or keeping away from the direction removal of accepting board (321) center simultaneously.
9. The bridge abutment and precast box girder connection structure of claim 8, wherein: drive assembly (82) are including rotating driving piece (821), actuating lever (822) and drive plate (823), actuating lever (822) are inserted and are established in drive plate (823) to rotate with drive plate (823) and be connected, the one end of rotating driving piece (821) and drive plate (823) links to each other, the output of rotating driving piece (821) links to each other with actuating lever (822), is used for driving actuating lever (822) and rotates, the both ends of actuating lever (822) all are provided with threaded connection, the helicitic texture at actuating lever (822) both ends is revolved to opposite, the both ends of actuating lever (822) are all worn to be equipped with fixed plate (811), and with fixed plate (811) threaded connection, fixed plate (811) and drive plate (823) sliding connection.
10. The bridge abutment and precast box girder connection structure of claim 2, wherein: the side wall of the bearing plate (321) is provided with a guide block (3211), the mounting rack (4) is provided with a guide groove (40) for the guide block (3211) to be inserted into, and the guide block (3211) is inserted into the guide groove (40) in a matching manner and slides in the guide groove (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839630.2A CN114960406A (en) | 2022-07-18 | 2022-07-18 | Bridge abutment and prefabricated box girder connecting structure of bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839630.2A CN114960406A (en) | 2022-07-18 | 2022-07-18 | Bridge abutment and prefabricated box girder connecting structure of bridge |
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