CN107841957A - A kind of large-tonnage steel box beam thrustor, pushing tow system and pushing method - Google Patents
A kind of large-tonnage steel box beam thrustor, pushing tow system and pushing method Download PDFInfo
- Publication number
- CN107841957A CN107841957A CN201711421517.8A CN201711421517A CN107841957A CN 107841957 A CN107841957 A CN 107841957A CN 201711421517 A CN201711421517 A CN 201711421517A CN 107841957 A CN107841957 A CN 107841957A
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- China
- Prior art keywords
- steel box
- girder
- sliding
- telescopic equipment
- oil cylinder
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Classifications
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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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
-
- 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
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Abstract
The present invention relates to equipment for bridge construction technical field,More particularly to a kind of large-tonnage steel box beam thrustor,Pushing tow system and pushing method,Thrustor includes jacking telescopic equipment,Horizontal sliding telescopic equipment and correction telescopic equipment,The Lifting Equipment,Horizontal sliding telescopic equipment and correction telescopic equipment are installed on sliding casing,The sliding bottom half is provided with the sliding base for slip,The horizontal sliding telescopic equipment,The both ends of correction telescopic equipment relative telescopic are respectively connecting to slide on casing and sliding base,Sliding base and sliding casing relative movement can be made,Three retractor devices that steel box-girder thrustor is are arranged in three-dimensional system of coordinate on three directions,Stretched by oil cylinder,Promote the movement of steel box-girder,And can be by the overall accurate pushing tow of steel box-girder to designed position,Correction can be realized during pushing tow,Without slipway beam,The steel box-girder thrustor is compact and flexible,It is easy to use and effective.
Description
Technical field
The present invention relates to equipment for bridge construction technical field, more particularly to a kind of large-tonnage steel box beam thrustor, pushing tow
System and pushing method.
Background technology
The construction technology of bridge is varied, covers various aspects, and the installation of steel box-girder and be wherein most heavy in place
The link wanted.In the construction technology of steel box-girder, because the complexity in place, such as across highway, across subway railway, across height
Iron, across having the harbour that navigation requires and the thoroughfare etc. for thering is safety traffic to require, influenceed by this complex site and operating mode, be
Ensure the safety of construction, need to take after the assembled good steel box-girder in the place of safety, be moved to steel box-girder in entirety designed
Target location.
At present, for moving integrally the work progress of steel box-girder, present construction technology generally use is drawn method and applied
Work.Dilatory method construction refers to that in steel box-girder positioned beneath track side in orbit arranges sliding block, with hoist engine or continuous jack
Longitudinal pull steel box-girder reaches specified location, and lateral arrangement jack carries out correction adjustment.But the steel box-girder volume of large-tonnage
It is huge, and the weight of steel box-girder weighs more than 30 tons, by this construction equipment and construction method in heave, by
In steel box-girder discontinuity equalization, can not ensure dilatory force direction and steel box-girder gravity motion direction on the same line, steel
The upper and lower part movement of box beam is asynchronous, easily produces the phenomenon that leapfrogs, causes steel box-girder to be easy to de-orbit, while also hold
Easily steel box-girder is set to be deformed during moving integrally；In addition, certain longitudinal slope is needed in the moving process of steel box-girder,
And steel box-girder integrally draw when, because quality is larger, therefore overall inertia is very big, it is difficult to control steel box-girder to be integrally parked in target portion
, great potential safety hazard be present in position.
The content of the invention
It is an object of the invention to：During for moving integrally steel box-girder using dilatory method in the prior art, steel box-girder itself
In the presence of leapfroging, and it is difficult the problem of control steel box-girder is parked at target location, there is provided a kind of large-tonnage steel box beam thrustor,
Pushing tow system and pushing method, the steel box-girder thrustor is the three-dimensional adjusting device for including three retractor devices, described in three
Retractor device is arranged in three-dimensional system of coordinate on three directions, is stretched by oil cylinder, promotes the movement of steel box-girder, and energy
By the overall accurate pushing tow of steel box-girder to designed position, correction can be realized during pushing tow, without slipway beam, the steel box-girder top
Pushing device is compact and flexible, easy to use and effective.
In order to realize foregoing invention purpose, the invention provides following technical scheme：
A kind of large-tonnage steel box beam thrustor, including for jacking up the jacking telescopic equipment of steel box-girder and for promoting steel box-girder
The horizontal sliding telescopic equipment moved to target location, and correction telescopic equipment, the Lifting Equipment, horizontal sliding telescopic equipment and correction
Telescopic equipment is installed on sliding casing, and the sliding bottom half is provided with the sliding base for slip, and the horizontal sliding is stretched
Contracting equipment, the both ends for telescopic equipment relative telescopic of rectifying a deviation are respectively connecting to slide on casing and sliding base, can make sliding base
With sliding casing relative movement.
This programme sets three telescopic equipments on thrustor, and after regarding thrustor as three-dimensional system of coordinate, three are stretched
Contracting equipment is arranged on three axial directions of three-dimensional system of coordinate, and three oil cylinders are vertical two-by-two, set on vertical direction
Telescopic equipment is jacked, is jacked up steel box-girder by jacking telescopic equipment；Steel box-girder to the direction that target location is moved be longitudinal direction side
To the telescopic direction of the horizontal sliding telescopic equipment is identical with the longitudinal direction, by translating the pushing tow of telescopic equipment, makes steel box-girder
Moved to target location；When position skew occurring in moving process, rectified a deviation by the correction telescopic equipment of thrustor,
The direction vertical with steel box-girder moving direction is horizontal direction, the telescopic direction and the horizontal direction phase of the correction telescopic equipment
Together, by the flexible of telescopic equipment of rectifying a deviation, promote steel box-girder to move left and right, carry out position adjustments, ensure that steel box-girder is in normal
Vertically move on direction.
Telescopic equipment is jacked by setting, during pushing steel box girder, jacking telescopic equipment jacks up steel box-girder, makes
Steel box-girder departs from bearing, is prepared for the movement of steel box-girder；Arrange horizontal sliding telescopic equipment, the other end of horizontal sliding telescopic equipment with
Sliding base connects, and by the flexible of horizontal sliding telescopic equipment, promotes steel box-girder to be moved to target location；When steel box-girder moves along longitudinal direction
When dynamic direction shifts, stretched by arranging that correction telescopic equipment carries out horizontal direction, adjustment steel box-girder is in a lateral direction
Position, so as to ensure steel box-girder with predetermined slip route think target location move.
By arranging sliding casing and sliding base, steel box-girder is realized by sliding movement of the casing on sliding base
Movement, without using slipway beam, equipment is compact and flexible, easy to use and effective.When sliding casing is in sliding base
After one stroke of upper completion, jacking telescopic equipment is shunk, so that steel box-girder falls on the cushion block arranged before, jacking is flexible to be set
It is standby to depart from steel box-girder, and shrink translation telescopic equipment and resetted, telescopic equipment then is jacked in elongation, is pushed away into next
Dynamic stroke, so repeatedly, realizes the movement of steel box-girder.
Preferably, the jacking telescopic equipment is jacking cylinder, and the horizontal sliding telescopic equipment is horizontal sliding oil cylinder, the correction
Telescopic equipment is correction oil cylinder.
Using the telescopic equipment of oil cylinder form, oil cylinder working-pressure can set very high, can obtain higher jacking force, be applicable
In the pushing tow process of large-tonnage steel box beam, and the telescopic equipment of hydraulic jack, stable, controllability is stronger, can guarantee that top
Pushing device normal operation.
Preferably, the cylinder body of the horizontal sliding oil cylinder is fixed on the side plate of the sliding base, the piston of the horizontal sliding oil cylinder
It is connected with sliding casing, the cylinder body of the correction oil cylinder is fixed on the side plate of the sliding base, the piston of the correction oil cylinder
It is connected on sliding casing, the sliding casing is rectangular configuration, is respectively used to connect horizontal sliding oil cylinder and the side plate of correction oil cylinder
Positioned at the adjacent both sides of sliding base.
The piston of horizontal sliding oil cylinder and correction oil cylinder is connected to sliding casing side, cylinder body is separately fixed at sliding base
On the side plate of adjacent both sides, this structure type is taken, can guarantee that oil cylinder in elongation, the problem of will not shaking, offset,
Because sliding base is fixed relative to sliding casing, sliding casing slides on sliding base, for oil cylinder, piston
It is to be moved relative to cylinder body, the fixed oil cylinder of both of which is connected with sliding base, the entirety of thrustor can be improved
Stability, ensure that when promoting sliding casing movement, too big skew will not occur for piston, so as to improve pushing tow movement efficiency.
Connection horizontal sliding oil cylinder and the side plate of correction oil cylinder are located at the adjacent both sides of sliding base, are mutually perpendicular to so as to form two
Moving direction, realize the movement in the two directions of sliding casing, ensure that thrustor, can be to steel in mobile steel box-girder
Box beam is promoted, and the correction on left and right directions can be also carried out to steel box-girder.
Preferably, the bearing beam for supporting steel box-girder is installed at the top of the jacking telescopic equipment.
Bearing beam is arranged, steel box-girder is formed by bearing beam and supported, increases the contact area of Lifting Equipment and steel box-girder, avoids
The end of jacking telescopic equipment directly contact with steel box-girder present in contact area it is small and bring and be easily damaged Lifting Equipment
Problem；Bearing beam is set, bearing beam can be pre-installed in the top of jacking telescopic equipment, ensures the two installation fastening, avoids
Security incident occurs during pushing tow, ensures that pushing tow process is smoothed out.
Preferably, it is respectively equipped with displacement sensing on the jacking telescopic equipment, horizontal sliding telescopic equipment and correction telescopic equipment
Device, institute's displacement sensors are wired to PLC main control computers, and the PLC main control computers are wired to dynamical system, institute
State dynamical system control jacking telescopic equipment, horizontal sliding telescopic equipment and correction telescopic equipment action.
Controlled by the cloth displacement sensor on telescopic equipment, and by PLC main control computers, pass the signal along to dynamical system
System, and the size of the stroke by dynamical system completion telescopic equipment, make the displacement of steel box-girder be effectively controlled, adopt
Fetch bit displacement sensor and dynamical system are all connected to the mode of PLC main control computers, can be automatically performed pushing tow and corresponding pushing tow amount.
Accordingly, present invention also offers a kind of large-tonnage steel box beam pushing tow system, including multiple supports and installed in more
Equipment platform on the individual support, the support are erected on the route that steel box-girder moves to target location, each described
Thrustor described above is mounted on cradle top and pier.
By arranging support and equipment platform, so that steel box-girder reaches installation portion above important line and section
Position, so as to avoid that the route to have come into operation is impacted, both ensure that the normal use of built route, and do not influence to hand over
The steel box-girder installation on cross wires road.
Thrustor is installed at the top of multiple supports, simultaneously steel box-girder is completed to push up so as to form multiple thrustors
Push away, avoid due to the problem of steel box-girder discontinuity equalization present in thrustor pushing tow is installed using part, make steel box-girder
Overall stress is more balanced, while reduces the load that each thrustor is carried.
Because steel box-girder is constantly to be moved to target location during pushing tow so that the front end of the steel box-girder direction of motion
Constantly contact with new thrustor, and steel box-girder is carried out by the jacking retractor device and horizontal sliding retractor device of thrustor
Pushing tow, and steel box-girder direction of motion end constantly has thrustor to depart from steel box-girder, by being moved in steel box-girder to displacement of targets
Multiple thrustors are arranged on dynamic route, steel box-girder continuously by pushing tow to target location, is improved steel box-girder
Efficiency of construction.
Bridge pier pier on the route of steel box-girder moving direction also be present, in order that steel box-girder passes through pier, in pier
On be also disposed with foregoing described thrustor.
Further, the equipment platform is the platform structure that Bailey beam is spliced to form.
Preferably, in addition to the nose girder installed in steel box-girder end, the nose girder are arranged in the front end of steel box-girder direction of advance,
The nose girder is the assembled frame structure formed of connecting rod, and the nose girder that the end of the nose girder is connected with for jacking up nose girder jacks
Device, the supporting table contacted after being extended for nose girder jacking apparatus is correspondingly disposed with the pier.
There is a certain degree of downwarp in steel box-girder, during pushing tow so that steel box-girder pushing tow is to bridge pier pier position
When, the front bottom end of steel box-girder is less than the height of support base or sliding case, because the weight of steel box-girder is larger, direct lifting steel box-girder
Huge difficulty be present, nose girder jacking apparatus is installed by arranging the nose girder of frame structure form, and in nose girder front end, so as to logical
Crossing the lighter nose girder of nose girder jacking apparatus jacking weight makes steel box-girder be transitioned into well on support base or sliding case.
Because nose girder is the assembled frame structure formed of connecting rod, its own has larger flexibility, in the work of its deadweight
With lower meeting downwarp, so that the horizontal absolute altitude in nose girder front end is also below support base or slides case absolute altitude, filled by installing nose girder jacking
Put, so that nose girder is set up on support base or sliding case well, and then guide steel box-girder to be transitioned on support base or sliding case.
Further, the nose girder jacking apparatus is the oil cylinder that cylinder body is arranged on nose girder, after the piston elongation of the oil cylinder
Contacted with the supporting table.
Preferably, the multiple thrustors being adjacently positioned are connected to same PLC main control mechanisms into pushing unit, should
The PLC main control computers of pushing unit are electrically connected to hydraulic power unit, and the hydraulic power unit passes through oil pipe and multiple tops of the pushing unit
The oil cylinder of pushing device is connected, and the magnetic valve being connected with PLC main control computers is equipped with the every oil pipe, each thrustor
On be also equipped with pressure sensor, multiple pressure sensors be electrically connected to corresponding on PLC main control computers.
Pushing tow control is carried out to thrustor using hydraulic power unit as dynamical system, ensures that accurate control, fault rate are low, by
Influence to dynamical system is smaller.
Multiple thrustors are connected to same PLC main control computers, so as to be controlled to multiple thrustors, protected
The synchronism of each thrustor is demonstrate,proved, so that steel box-girder is stable, is safely moved to target site.
The PLC main control computers of each pushing unit are connected to hydraulic power unit using electric connection modes such as wires, pass through PLC master controls
Control of the machine to hydraulic power unit, accurate control is realized, can be parked in exact position as needed.
Pressure sensor is installed on thrustor, the pressure that each thrustor is born is monitored by pressure sensor
Power, so as to obtain the purpose of difference restriction, protect the security of thrustor.
Further, two neighboring, four or six thrustors are connected on same PLC main control computers, so as to
Form a pushing unit.The thrustor at both ends on same support is formed a pushing unit by general take, or by phase
Four thrustors at adjacent two support both ends form a pushing unit, can also use and fill six pushing tows being adjacently positioned
Put and form a pushing unit, concrete condition is according to actual arrangement.
Preferably, the PLC main control computers of multiple pushing units interconnect, and form wherein any one PLC main control computer
For main frame, the pushing tow system that remaining PLC main control computer is subsidiary engine.
The PLC main control computers of all pushing units are interconnected, so as to form overall pushing tow system, it is ensured that all
Thrustor it is synchronous, and steel box-girder is in sliding process, the pushing tow that can be intervened at any time to steel box-girder moving direction front end
Device can be controlled well, ensured that steel box-girder is safe and stable, be efficiently moved to target location.
Accordingly, present invention also offers a kind of large-tonnage steel box beam pushing method, pushing tow as described above is being used
When device carries out pushing tow to steel box-girder, by the jacking telescopic equipment of thrustor, horizontal sliding telescopic equipment and correction telescopic equipment point
Jacking cylinder, horizontal sliding oil cylinder and correction oil cylinder are not set to, and complete pushing tow as steps described below：
A, steel box-girder is jacked, opens jacking cylinder so that steel box-girder is lifted off support base after jacking cylinder rising；
B, pushing steel box girder, horizontal sliding oil cylinder is opened, makes steel box-girder and sliding casing integral forward lead, until horizontal sliding oil cylinder completes one
Stroke；
C, thrustor resets, and opens jacking cylinder, makes steel box-girder entire lowering, until steel box-girder is placed on support base and jacking
Oil cylinder completely disengages steel box-girder, opens horizontal sliding oil cylinder, sliding casing is returned to initial position backward；
E, repeat the above steps a~c, until shifting the position of construction requirement onto, during pushing steel box girder, is determined by measuring
By correction oil cylinder pushing tow after deviation, make steel box-girder traversing to pushing tow further along after target route.
Aforesaid way is taken, pushing tow is carried out to steel box-girder by thrustor, jacking cylinder jacks up steel box-girder, horizontal sliding oil cylinder
By steel box-girder pushing tow forward, it is held on after falling beam on support base, the pushing tow work of a stroke, pushing tow process are completed in oil cylinder oil return
In be a self-balancing pushing tow process.
Substituting dilatory mode of the prior art using this pushing tow mode makes steel box-girder in place, is being moved through steel box-girder
Stress is more balanced in journey so that steel box-girder integral installation in movement is sliding the enterprising line slip of casing, the top of steel box-girder
Moved with bottom synchronous, the phenomenon that leapfrogs will not be produced, ensured that steel box-girder steadily moves, be steady in place, ensure construction safety；Simultaneously
Ensure that steel box-girder will not deform during moving integrally, after steel box-girder is moved to target site, by controlling horizontal sliding
Oil cylinder is stopped, and steel box-girder can be integrally parked in into target site, due to depositing when solving steel box-girder movement in the prior art
In the security hidden trouble that larger inertia can not stop.
Compared with prior art, beneficial effects of the present invention：
The 1st, three telescopic equipments are set on thrustor, after regarding thrustor as three-dimensional system of coordinate, three telescopic equipments point
It is not arranged on three axial directions of three-dimensional system of coordinate, and three oil cylinders are vertical two-by-two, set jacking flexible on vertical direction
Equipment, steel box-girder is jacked up by jacking telescopic equipment；Steel box-girder to the direction that target location is moved be longitudinal direction, it is described flat
It is identical with the longitudinal direction to push away the telescopic direction of telescopic equipment, by translating the pushing tow of telescopic equipment, makes steel box-girder to target position
Put movement；When position skew occurring in moving process, rectified a deviation by the correction telescopic equipment of thrustor, with steel box-girder
The vertical direction of moving direction is horizontal direction, and the telescopic direction of the correction telescopic equipment is identical with the horizontal direction, passes through
Stretching for correction telescopic equipment, promotes steel box-girder to move left and right, and carries out position adjustments, ensures that steel box-girder moves in normally longitudinal direction
On dynamic direction；
2nd, by arranging sliding casing and sliding base, steel box-girder is realized by sliding movement of the casing on sliding base
It is mobile, without using slipway beam, equipment is compact and flexible, easy to use and effective.When sliding casing is on sliding base
After completing a stroke, jacking telescopic equipment shrinks, so that steel box-girder falls on the cushion block arranged before, jacks telescopic equipment
Depart from steel box-girder, and shrink translation telescopic equipment and resetted, then telescopic equipment is jacked in elongation, into next promotion
Stroke, so repeatedly, realize the movement of steel box-girder；
3rd, by installing nose girder jacking apparatus, so that nose girder is set up on support base or sliding case well, and then steel case is guided
Beam is transitioned on support base or sliding case；
4th, the PLC main control computers of all pushing units are interconnected, so as to form overall pushing tow system, it is ensured that all
Thrustor is synchronous, and steel box-girder, in sliding process, the pushing tow that can be intervened at any time to steel box-girder moving direction front end fills
Put to be controlled well, ensured that steel box-girder is safe and stable, be efficiently moved to target location.
Brief description of the drawings：
Fig. 1 is the structural representation of the large-tonnage steel box beam thrustor of the present invention.
Fig. 2 is the structural representation of the pushing tow system of the present invention.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Fig. 4 is the partial enlarged drawing at B in Fig. 2.
Fig. 5 is the catenation principle figure of pushing unit in pushing tow system of the present invention.
Fig. 6 is large-tonnage steel box beam pushing method step a of the present invention pushing tow schematic diagram.
Fig. 7 is large-tonnage steel box beam pushing method step b of the present invention pushing tow schematic diagram.
Fig. 8 is the pushing tow schematic diagram that pipe bending cylinder declines in large-tonnage steel box beam pushing method step c of the present invention.
Fig. 9 is the pushing tow schematic diagram that horizontal sliding oil cylinder resets in large-tonnage steel box beam pushing method step c of the present invention.
Marked in figure：1- steel box-girders, 2- thrustors, 21- jacking cylinders, 22- horizontal sliding oil cylinders, 23- correction oil cylinders, 24-
Sliding casing, 25- sliding bases, 251- side plates, 3- bearing beams, 4-PLC main control computers, 5- dynamical systems, 6- supports, 7- equipment are put down
Platform, 8- piers, 9- nose girders, 10- nose girder jacking apparatus, 11- supporting tables, 12- hydraulic power units, 13- oil pipes, 14- support bases.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
Embodiment 1
As Figure 1-5, large-tonnage steel box beam thrustor 2, including for jacking up the jacking telescopic equipment of steel box-girder 1 and being used for
The horizontal sliding telescopic equipment for promoting steel box-girder 1 to be moved to target location, and correction telescopic equipment, the Lifting Equipment, horizontal sliding are stretched
Contracting equipment and correction telescopic equipment are installed on sliding casing 24, and the bottom of sliding casing 24 is provided with the sliding for slip
Base 25, the horizontal sliding telescopic equipment, the both ends for telescopic equipment relative telescopic of rectifying a deviation are respectively connecting to slide casing 24 and sliding
On base 25, sliding base 25 can be made to be relatively moved with sliding casing 24, the jacking telescopic equipment is jacking cylinder 21, described
Horizontal sliding telescopic equipment is horizontal sliding oil cylinder 22, and the correction telescopic equipment is correction oil cylinder 23.
As a kind of embodiment therein, the cylinder body of the horizontal sliding oil cylinder 22 is fixed on the side plate of the sliding base 25
On 151, the piston of the horizontal sliding oil cylinder 22 is connected with sliding casing 24, and the cylinder body of the correction oil cylinder 23 is fixed on the sliding bottom
On the side plate 251 of seat 25, the piston of the correction oil cylinder 23 is connected on sliding casing 24, and the sliding casing 24 is rectangle knot
Structure, it is respectively used to connect horizontal sliding oil cylinder 22 and the side plate 251 of correction oil cylinder 23 is located at 25 adjacent both sides of sliding base, due to sliding
Base 25 is fixed relative to sliding casing 24, and sliding casing 24 slides on sliding base 25, for oil cylinder, piston
It is to be moved relative to cylinder body, the fixed oil cylinder of both of which is connected with sliding base 25, the whole of thrustor 2 can be improved
Body stability, ensure that when promoting sliding casing 24 to move, too big skew will not occur for piston, so as to improve pushing tow movement effect
Rate.
Connection horizontal sliding oil cylinder 22 and the side plate 251 of correction oil cylinder 23 are located at 25 adjacent both sides of sliding base, so as to form two
Individual orthogonal moving direction, the movement of sliding casing 24 in the two directions is realized, ensures thrustor 2 in Mobile steel case
During beam 1, steel box-girder 1 can be promoted, the correction on left and right directions can be also carried out to steel box-girder 1.
As a kind of embodiment therein, the pad for supporting steel box-girder 1 is installed at the top of the jacking telescopic equipment
Beam 3, steel box-girder 1 is formed by bearing beam 3 and supported, the contact area of increase Lifting Equipment and steel box-girder 1, avoid jacking is flexible from setting
It is small and bring the problem of being easily damaged Lifting Equipment that standby end directly contacts existing contact area with steel box-girder 1, is setting
When putting bearing beam, bearing beam 3 can be pre-installed in the top of jacking telescopic equipment, ensure the two installation fastening, avoid in pushing tow
During occur security incident, ensure that pushing tow process is smoothed out.
As a kind of embodiment therein, on the jacking telescopic equipment, horizontal sliding telescopic equipment and correction telescopic equipment
Displacement transducer is respectively equipped with, institute's displacement sensors are wired to PLC main control computers 4, and the PLC main control computers 4 are by leading
Line is connected to dynamical system 5, and the control of dynamical system 5 jacking telescopic equipment, horizontal sliding telescopic equipment and the correction telescopic equipment move
Make, controlled by the cloth displacement sensor on telescopic equipment, and by PLC main control computers 4, pass the signal along to dynamical system 5,
And the size of the stroke of telescopic equipment is completed by dynamical system 5, the displacement of steel box-girder 1 is effectively controlled, adopt
Fetch bit displacement sensor and dynamical system 5 are all connected to the mode of PLC main control computers 4, can be automatically performed pushing tow and corresponding pushing tow
Amount.
Embodiment 2
As Figure 1-5, large-tonnage steel box beam pushing tow system, including multiple supports 6 and setting on multiple supports 6
Standby platform 7, the support 6 are erected on the route that steel box-girder 1 moves to target location, in each top of support 6 and pier
Thrustor 2 described above is mounted on platform 8, thrustor 2 is installed at the top of multiple supports 6, it is multiple so as to be formed
Thrustor 2 completes pushing tow to steel box-girder 1 simultaneously, avoids due to using the local steel case installed present in thrustor pushing tow
The problem of 1 discontinuity equalization of beam, make 1 overall stress of steel box-girder more balanced, while reduce what each thrustor 2 was carried
Load.
Because steel box-girder 1 is constantly to be moved to target location during pushing tow so that before the direction of motion of steel box-girder 1
End constantly contacts with new thrustor 2, and by the jacking retractor device and horizontal sliding retractor device of thrustor 2 to steel box-girder
1 carries out pushing tow, and the direction of motion end of steel box-girder 1 constantly has thrustor 2 to depart from steel box-girder 1, by steel box-girder 1 to mesh
Multiple thrustors 2 are arranged on the route of marker displacement movement, steel box-girder 1 continuously by pushing tow to target location, is carried
The efficiency of construction of high steel box-girder.
Bridge pier pier 8 also be present on the route of the moving direction of steel box-girder 1, in order that steel box-girder 1 passes through pier 8,
Also foregoing described thrustor 2 is disposed with pier 8.
Further, the equipment platform 7 is the platform structure that Bailey beam is spliced to form.
As a kind of embodiment therein, in addition to the nose girder 9 installed in the end of steel box-girder 1, the nose girder 9 are arranged in steel
The front end of the direction of advance of box beam 1, the nose girder 9 are the assembled frame structure formed of connecting rod, and the end of the nose girder 9 is connected with
For jacking up the nose girder jacking apparatus 10 of nose girder 9, correspondingly it is disposed with the pier 8 and is followed by for the elongation of nose girder jacking apparatus 10
Tactile supporting table 11, by arranging the nose girder 9 of frame structure form, and in the front end of nose girder 9 installation nose girder jacking apparatus 10, so that
Jacking the lighter nose girder 9 of weight by nose girder jacking apparatus 10 makes steel box-girder 1 be transitioned into well on support base 14 or sliding case.
Further, the nose girder jacking apparatus 10 is the oil cylinder that cylinder body is arranged on nose girder 9, and the piston of the oil cylinder extends
Contacted afterwards with the supporting table 11.
As a kind of embodiment therein, the multiple thrustors 2 being adjacently positioned are connected to same PLC master controls
Machine 4 forms pushing unit, and the PLC main control computers 4 of the pushing unit are electrically connected to hydraulic power unit 12, and the hydraulic power unit 12 passes through oil
Pipe 13 is connected with the oil cylinder of multiple thrustors 2 of the pushing unit, is equipped with and PLC main control computers 4 on the every oil pipe 13
The magnetic valve of connection, pressure sensor each is also equipped with the thrustor 2, multiple pressure sensors are electrically connected to
On corresponding PLC main control computers 4.
Multiple thrustors 2 are connected to same PLC main control computers 4, so as to be controlled to multiple thrustors 2
System, ensure the synchronism of each thrustor 2, so that the stabilization of steel box-girder 1, being safely moved to target site.
The PLC main control computers 4 of each pushing unit are connected to hydraulic power unit using electric connection modes such as wires, pass through PLC master
Control of the control machine 4 to hydraulic power unit 12, accurate control is realized, can be parked in exact position as needed.
Pressure sensor is installed on thrustor, the pressure that each thrustor is born is monitored by pressure sensor
Power, so as to obtain the purpose of difference restriction, protect the security of thrustor.
Further, two neighboring, four or six thrustors are connected on same PLC main control computers, so as to
Form a pushing unit.The thrustor at both ends on same support is formed a pushing unit by general take, or by phase
Four thrustors at adjacent two support both ends form a pushing unit, can also use and fill six pushing tows being adjacently positioned
Put and form a pushing unit, concrete condition is according to actual arrangement.
As a kind of embodiment therein, the PLC main control computers of multiple pushing units are interconnected, and formation is wherein appointed
A PLC main control computer of anticipating is main frame, the pushing tow system that remaining PLC main control computer is subsidiary engine.
The PLC main control computers of all pushing units are interconnected, so as to form overall pushing tow system, it is ensured that all
Thrustor it is synchronous, and steel box-girder is in sliding process, the pushing tow that can be intervened at any time to steel box-girder moving direction front end
Device can be controlled well, ensured that steel box-girder is safe and stable, be efficiently moved to target location.
Embodiment 3
As Figure 6-9, large-tonnage steel box beam pushing method, the thrustor 2 in using such as embodiment 1 enter to steel box-girder 1
During row pushing tow, the jacking telescopic equipment of thrustor 2, horizontal sliding telescopic equipment and correction telescopic equipment are set to jacking cylinder
21st, horizontal sliding oil cylinder 22 and correction oil cylinder 23, and pushing tow is completed as steps described below：
A, steel box-girder 1 is jacked, opens jacking cylinder 21 so that steel box-girder 1 is lifted off support base 14 after the rising of jacking cylinder 21；
B, pushing steel box girder 1, horizontal sliding oil cylinder 22 is opened, makes steel box-girder 1 and the sliding integral forward lead of casing 24, until horizontal sliding oil cylinder 22
Complete a stroke；
C, thrustor 2 resets, and opens jacking cylinder 21, makes the entire lowering of steel box-girder 1, until steel box-girder 1 is placed on support base
14 and jacking cylinder 21 completely disengage steel box-girder 1, open horizontal sliding oil cylinder 22, sliding casing 24 is returned to initial position backward；
E, repeat the above steps a~c, until shifting the position of construction requirement onto, during pushing steel box girder, is determined by measuring
By correction oil cylinder pushing tow after deviation, make steel box-girder traversing to pushing tow further along after target route.
Pushing tow is carried out to steel box-girder 1 by thrustor 2, jacking cylinder 21 jacks up steel box-girder 1, and horizontal sliding oil cylinder 22 is by steel case
The pushing tow forward of beam 1, is held on support base 14 after falling beam, and the pushing tow work of a stroke is completed in oil cylinder oil return, during pushing tow
It is the pushing tow process of a self-balancing.
Substituting dilatory mode of the prior art using this pushing tow mode makes steel box-girder in place, is being moved through steel box-girder
Stress is more balanced in journey so that steel box-girder integral installation in movement is sliding the enterprising line slip of casing, the top of steel box-girder
Moved with bottom synchronous, the phenomenon that leapfrogs will not be produced, ensured that steel box-girder steadily moves, be steady in place, ensure construction safety；Simultaneously
Ensure that steel box-girder will not deform during moving integrally, after steel box-girder is moved to target site, by controlling horizontal sliding
Oil cylinder is stopped, and steel box-girder can be integrally parked in into target site, due to depositing when solving steel box-girder movement in the prior art
In the security hidden trouble that larger inertia can not stop.
Claims (10)
- A kind of 1. large-tonnage steel box beam thrustor, it is characterised in that including for jack up steel box-girder jacking telescopic equipment and For the horizontal sliding telescopic equipment for promoting steel box-girder to be moved to target location, and correction telescopic equipment, the jacking telescopic equipment, Horizontal sliding telescopic equipment and correction telescopic equipment are installed on sliding casing, and the sliding bottom half is provided with the cunning for slip Base is moved, the horizontal sliding telescopic equipment, the both ends for telescopic equipment relative telescopic of rectifying a deviation are respectively connecting to slide casing and slide bottom On seat, sliding base and sliding casing relative movement can be made.
- 2. large-tonnage steel box beam thrustor according to claim 1, it is characterised in that the jacking telescopic equipment is top Oil-lifting jar, the horizontal sliding telescopic equipment are horizontal sliding oil cylinder, and the correction telescopic equipment is correction oil cylinder.
- 3. large-tonnage steel box beam thrustor according to claim 2, it is characterised in that the cylinder body of the horizontal sliding oil cylinder is consolidated It is scheduled on the side plate of the sliding base, the piston of the horizontal sliding oil cylinder is connected with sliding casing, and the cylinder body of the correction oil cylinder is consolidated It is scheduled on the side plate of the sliding base, the piston of the correction oil cylinder is connected on sliding casing, and the sliding casing is rectangle Structure, it is respectively used to connect horizontal sliding oil cylinder and the side plate of correction oil cylinder is located at the adjacent both sides of sliding base.
- 4. large-tonnage steel box beam thrustor according to claim 1, it is characterised in that at the top of the jacking telescopic equipment Bearing beam for supporting steel box-girder is installed.
- 5. the large-tonnage steel box beam thrustor according to one of claim 1-4, it is characterised in that the jacking is flexible to be set Displacement transducer is respectively equipped with standby, horizontal sliding telescopic equipment and correction telescopic equipment, institute's displacement sensors are connected by wire To PLC main control computers, the PLC main control computers are wired to dynamical system, the dynamical system control jacking telescopic equipment, put down Push away telescopic equipment and correction telescopic equipment action.
- 6. a kind of large-tonnage steel box beam pushing tow system, it is characterised in that including multiple supports and on multiple supports Equipment platform, the support is erected on the route that steel box-girder moves to target location, in each cradle top and pier The thrustor described in one of claim 1-5 is mounted on platform.
- 7. large-tonnage steel box beam pushing tow system according to claim 6, it is characterised in that also include being arranged on steel box-girder end The nose girder in portion, the nose girder are arranged in the front end of steel box-girder direction of advance, and the nose girder is the assembled frame structure formed of connecting rod, The end of the nose girder is connected with the nose girder jacking apparatus for jacking up nose girder, is correspondingly disposed with for nose girder top on the pier Rise the supporting table contacted after device elongation.
- 8. the large-tonnage steel box beam pushing tow system according to claim 6 or 7, it is characterised in that the multiple institutes being adjacently positioned State thrustor and be connected to same PLC main control mechanisms and be electrically connected to hydraulic pressure into pushing unit, the PLC main control computers of the pushing unit Pumping plant, the hydraulic power unit is connected by oil pipe with the oil cylinder of multiple thrustors of the pushing unit, on the every oil pipe The magnetic valve being connected with PLC main control computers is equipped with, pressure sensor, multiple pressures are also equipped with each thrustor Force snesor is electrically connected on corresponding PLC main control computers.
- 9. large-tonnage steel box beam pushing tow system according to claim 8, it is characterised in that multiple pushing units PLC main control computers interconnect, and formation wherein any one PLC main control computer is main frame, the pushing tow system that remaining PLC main control computer is subsidiary engine System.
- 10. a kind of large-tonnage steel box beam pushing method, it is characterised in that using the pushing tow as described in one of claim 1-5 When device carries out pushing tow to steel box-girder, by the jacking telescopic equipment of thrustor, horizontal sliding telescopic equipment and correction telescopic equipment point Jacking cylinder, horizontal sliding oil cylinder and correction oil cylinder are not set to, and complete pushing tow as steps described below：A, steel box-girder is jacked, opens jacking cylinder so that steel box-girder is lifted off support base after jacking cylinder rising；B, pushing steel box girder, horizontal sliding oil cylinder is opened, makes steel box-girder and sliding casing integral forward lead, until horizontal sliding oil cylinder completes one Stroke；C, thrustor resets, and opens jacking cylinder, makes steel box-girder entire lowering, until steel box-girder is placed on support base and jacking Oil cylinder completely disengages steel box-girder, opens horizontal sliding oil cylinder, sliding casing is returned to initial position backward；E, repeat the above steps a~c, until shifting the position of construction requirement onto, during pushing steel box girder, is determined by measuring By correction oil cylinder pushing tow after deviation, make steel box-girder traversing to pushing tow further along after target route.
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| CN201711421517.8A CN107841957A (en) | 2017-12-25 | 2017-12-25 | A kind of large-tonnage steel box beam thrustor, pushing tow system and pushing method |
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| CN108330843A (en) * | 2018-01-24 | 2018-07-27 | 吴远 | A kind of novel walking pushing tow system |
| CN109338886A (en) * | 2018-10-11 | 2019-02-15 | 中铁大桥勘测设计院集团有限公司 | A kind of contraposition coalignment and its contraposition matching process for steel box girder segment |
| CN109853400A (en) * | 2019-01-21 | 2019-06-07 | 中建五局土木工程有限公司 | A kind of thrustor, incremental launching device and pushing tow system |
| CN109930494A (en) * | 2019-04-11 | 2019-06-25 | 中交二公局第五工程有限公司 | Suitable for the curve and in length and breadth bridge construction thrustor on slope |
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| CN108330843A (en) * | 2018-01-24 | 2018-07-27 | 吴远 | A kind of novel walking pushing tow system |
| CN109338886A (en) * | 2018-10-11 | 2019-02-15 | 中铁大桥勘测设计院集团有限公司 | A kind of contraposition coalignment and its contraposition matching process for steel box girder segment |
| CN109338886B (en) * | 2018-10-11 | 2023-09-29 | 中铁大桥勘测设计院集团有限公司 | Alignment matching device and alignment matching method for steel box girder segments |
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| CN109930494B (en) * | 2019-04-11 | 2024-03-26 | 中交二公局第五工程有限公司 | Bridge construction pushing device suitable for curves and longitudinal and transverse slopes |
| CN109989353A (en) * | 2019-04-28 | 2019-07-09 | 开封市大方预应力有限公司 | A kind of bridge displacement adjustment device |
| CN110306445A (en) * | 2019-07-11 | 2019-10-08 | 中国建筑第八工程局有限公司 | Incremental launching device and bridge incremental launching method for bridge incremental launching construction |
| CN110685231A (en) * | 2019-07-16 | 2020-01-14 | 中交一公局第二工程有限公司 | Walking pushing device |
| CN111395199A (en) * | 2020-01-17 | 2020-07-10 | 中铁二十四局集团浙江工程有限公司 | Pushing machine for bridge construction |
| CN111395200B (en) * | 2020-01-17 | 2021-05-11 | 中铁二十四局集团浙江工程有限公司 | Bridge pushing assembly utilizing gear transmission |
| CN111395200A (en) * | 2020-01-17 | 2020-07-10 | 中铁二十四局集团浙江工程有限公司 | Bridge pushing assembly utilizing gear transmission |
| CN112049433A (en) * | 2020-08-11 | 2020-12-08 | 上海隧道工程有限公司 | Steel truss pushing attitude control equipment and attitude control method thereof |
| TWI747499B (en) * | 2020-09-16 | 2021-11-21 | 佳彧機械工程有限公司 | Wedge-shaped propulsion device for bridge and construction method thereof |
| CN112176875A (en) * | 2020-09-28 | 2021-01-05 | 镇江瑞昊工程塑料有限公司 | Bridge sliding block for bridge incremental launching construction |
| CN113622321A (en) * | 2021-03-05 | 2021-11-09 | 德州市德城区亚星液压机具厂 | Three-dimensional thrustor capable of continuously pushing |
| CN113005912A (en) * | 2021-03-11 | 2021-06-22 | 中交二公局第五工程有限公司 | Reciprocating dragging type super-tonnage steel box girder continuous traction device and use method thereof |
| CN113215991B (en) * | 2021-04-25 | 2022-11-04 | 邵阳公路桥梁建设有限责任公司 | Rapid steel box girder erection device and construction method thereof |
| CN113215991A (en) * | 2021-04-25 | 2021-08-06 | 邵阳公路桥梁建设有限责任公司 | Quick erecting device for steel box girder and construction method thereof |
| CN113356075A (en) * | 2021-06-29 | 2021-09-07 | 上海市基础工程集团有限公司 | Large-tonnage bridge pushing deviation correcting device |
| CN113981795A (en) * | 2021-09-27 | 2022-01-28 | 中交一公局第七工程有限公司 | Steel-concrete composite beam and sliding walking type integral pushing installation process thereof |
| CN114751335A (en) * | 2022-04-12 | 2022-07-15 | 中电建路桥集团有限公司 | Accurate positioner of girder steel installation |
| CN114751335B (en) * | 2022-04-12 | 2023-06-09 | 中电建路桥集团有限公司 | Accurate positioner of girder steel installation |
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