CN106638322A - Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique - Google Patents
Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique Download PDFInfo
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- CN106638322A CN106638322A CN201611237662.6A CN201611237662A CN106638322A CN 106638322 A CN106638322 A CN 106638322A CN 201611237662 A CN201611237662 A CN 201611237662A CN 106638322 A CN106638322 A CN 106638322A
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- steel box
- pushing tow
- girder
- walking
- control system
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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
Abstract
The invention provides a steel box beam pushing and deviation correcting method for a walking type multiple-point continuous pushing technique. A multiple-point walking type pushing technology is adopted, and a plurality of walking type pushing devices are controlled in a centralized mode for synchronous construction, so that the construction speed is increased, and construction safety is ensured; and vertical jacking control is conducted in the jacking and falling processes, synchronous pushing control and central axis deviation correcting control are conducted in the translation process of a steel box beam, balance degree control and accumulative error control are continuously conducted in the whole pushing process, a pressure sensor, a displacement sensor and an optoelectronic switch monitor and detect the steel box beam pushing pressure and the central axis deviation distance in the pushing process in real time through color difference detection, and smooth construction is ensured.
Description
Technical field
The present invention relates to the steel box-girder pushing tow and method for correcting error of a kind of walking multiple spot successively incremeantal launching method technique, belong to bridge work
Journey technical field.
Background technology
Thrusting slip construction is the engineering production method with necessarily degree of hesitating such as a kind of bridge, roof truss, steel construction, such as China
Patent application " walking type multi-point jacking-pushing construction method " (application number 201210042810.4), discloses following content：Walking
Multi-point pushing scheme utilization " top ", two steps of " pushing away " alternately, first pass through support jacking cylinder by integral steel box corbel
Rise, then by pipe bending cylinder delivery forward, then steel box-girder is placed on interim pier structure.Pipe bending cylinder contracting cylinder on earth, continues
Next circulation is realized, by the circulation of reciprocal pushing tow step, most at last steel box-girder is sent to predetermined position, and steel box-girder is preset
Weld paragraph by paragraph on platform for lining, with the jack synchronous push in multiple spot multiple stage thrustor.Thrustor is along bridge to cloth respectively
Put at the top of each Temporary Piers, steel box-girder is designed to multistage engagement, carries out live overlap joint by physical length, it is ensured that during pushing tow
Steel nose girder because of deadweight tenesmus, steel box-girder or in plant produced, is not transported to job site, and whole sections are from little mileage side platform
Assembly, pushing tow, progressively pushing tow is in place.
Above-mentioned application solves the problems, such as girder safety moving, quick in place, employing in the engineering constructions such as bridge, grade separation
Integrate the walking incremental launching device for having jacking, translating, laterally adjust, realize the suitable bridge of steel box-girder to, direction across bridge, erect up and down
To movement or adjustment, but in practical operation, due to the company using walking incremental launching device Multipoint synchronous action, steel box-girder
Continuous pushing tow, it may occur that incremental launching device is asynchronous, steel box-girder run-off the straight or the overproof problem of lateral shift occur, hinders pushing tow to apply
Work it is efficient, be smoothed out.
The content of the invention
It is an object of the invention to provide the steel box-girder pushing tow and method for correcting error of a kind of walking multiple spot successively incremeantal launching method technique,
Solve the problems, such as in prior art asynchronous incremental launching device, steel box-girder run-off the straight or lateral shift occur overproof.
Realize technical scheme that the object of the invention adopted for a kind of steel box-girder top of walking multiple spot successively incremeantal launching method technique
Push away and method for correcting error, including equipment installation, vertical jacking control, synchronous push control and axis correction control, particular content
For：
Equipment is installed：Temporary Piers are installed in each main pier both sides, are respectively mounted walking pushing tow on each Temporary Piers of both sides and are set
Standby, walking incremental launching device, to arrangement, lays steel bearing beam, in steel along along bridge between walking incremental launching device and steel box-girder beam bottom
Jacking displacement transducer is installed between box beam and steel bearing beam, hydraulic control system and electric-control system are installed by main pier；
Vertical jacking control：During steel box-girder jacking and falling after rise, the jack of each walking incremental launching device is lived
Plug integrating action, detects the top lifting height of steel box-girder, with the walking incremental launching device of wherein side by jacking displacement transducer
On the basis of, by adjustment with the top lifting height of side walking incremental launching device, both sides displacement difference is controlled in set point；
Synchronous push is controlled：In steel box-girder translation motion, for same main pier, set with the walking pushing tow of wherein side
Moving point based on standby, its pushing tow jack stretches cylinder with certain speed, is with moving point, with moving point and active with side walking incremental launching device
The pushing tow jack of point compares, and by adjustment with the pushing tow displacement of the pushing tow jack of moving point, displacement difference control in both sides is existed
Within setting value；For different main piers, the moving point based on the walking incremental launching device of one of them main pier side, other main piers are same
The walking incremental launching device of side is, with moving point, to compare with the pushing tow jack of active point with moving point, by adjusting with the top of moving point
The pushing tow displacement of jack is pushed away, by each walking incremental launching device displacement difference control of homonymy within setting value；
Axis correction control：Photoswitch is installed on each main pier or Temporary Piers, will wherein on the base plate of steel box-girder
The band colour code line of axis equal in width is illustrated, by the detection of aberration, so as to realize the detection to box beam axis, in steel
In box beam translation motion, if certain photoswitch can't detect axis, signal is sent to electric-control system, by electric-control system
Tend to act the correction jack action of corresponding walking incremental launching device, until photoswitch detects stopping action behind axis,
So as to realize that axis is rectified a deviation.
Pressure transducer is respectively mounted on the hydraulic control circuit of each jack of walking incremental launching device, by pressure
The lift-up pressure value that sensor is detected is converted to the support reaction value of each stress point, and by electric-control system each stress point is set
Maximum differential pressure between maximum pressure and the corresponding each stress point of same main pier, in vertical jacking control process, if occurring
The maximum differential pressure that the support reaction value of stress point is reached between the maximum pressure of setting or the corresponding each stress point of same main pier is more than
During setting maximum differential pressure, hydraulic control system and all walking incremental launching device autostops of electric control system controls, and report to the police and show
Meaning.
Pressure is respectively mounted on each jack of walking incremental launching device and the hydraulic control circuit of pushing tow jack
Sensor, the lift-up pressure value that pressure transducer is detected is converted to the support reaction value of each stress point, is set according to support reaction value
Determine the pipe bending cylinder pressure of the hydraulic control circuit of pushing tow jack, hydraulic control system and electric control system controls pipe bending cylinder exist
Jacking force is provided under the pressure of setting, the maximum pressure and same main pier correspondence of every pipe bending cylinder are set by electric-control system
Each pipe bending cylinder between maximum differential pressure, in steel box-girder translation motion, if the load for pipe bending cylinder occur reaches setting
When the maximum differential pressure of maximum pressure or the corresponding each pipe bending cylinder of same main pier is more than setting value, hydraulic control system and automatically controlled
System controls all walking incremental launching device autostops, and signal of reporting to the police.
The particular content of pipe bending cylinder pressure of the hydraulic control circuit of pushing tow jack is set as according to support reaction value meter
Calculate the frictional force between walking incremental launching device and steel box-girder, and by the frictional force for calculating and pushing tow jack hydraulic control loop
The indicating value of the oil gauge of upper installation is mutually verified, according to the thrust of each pushing tow jack of the size adjustment of frictional force so that oil pressure
The indicating value of table matches with the frictional force for calculating, the oil cylinder of pushing tow jack when oil gauge indicating value matches with the frictional force for calculating
Pressure is the pipe bending cylinder pressure for setting.
Obliquity sensor is installed on steel bearing beam, each obliquity sensor is set in suitable bridge to the maximum inclination with direction across bridge
Angle, during steel box-girder pushing tow, if occur obliquity sensor along bridge to and/or direction across bridge angle of inclination beyond setting
Value, hydraulic control system and all walking incremental launching device autostops of electric control system controls, and signal of reporting to the police.
In steel box-girder translation motion, the total displacement of each pushing tow jack movement is calculated by electric-control system, by maximum
Total displacement amount deducts minimum total displacement and measures out cumulative errors, total displacement is individually adjusted if cumulative errors exceed setting value minimum
Pushing tow jack with rectification error.
The median ventral plate of steel box-girder both sides is reinforced by stiffened panel, the both sides median ventral plate during pushing tow with steel box-girder is main
Force part.
Distribution beam is arranged in Temporary Piers pier top, walking incremental launching device is arranged in distribution beam.
With all walking incremental launching devices on same main pier both sides Temporary Piers as a point pushing tow unit, each point of pushing tow unit
1 hydraulic power unit of arrangement and 1 set of PLC point of control system, each PLC point of control system is controlled by the integrated master control systems of PLC,
PLC point of control system and the integrated master control systems of PLC form electric-control system.
During last time steel box-girder pushing tow, using little stroke crawl pushing method.
As shown from the above technical solution, during steel box-girder jacking and falling after rise, key station is except controlling cluster for the present invention
Outside the integrating action of jack, the height of jacking is also detected by displacement transducer, it is ensured that each main Dun Liangceding
Rise jack synchronization, on the basis of wherein side, both sides displacement difference control in set point, if follow side top lifting height compared with
Greatly, then the flow of the side proportioning valve is reduced, conversely, then increase the flow of the side proportioning valve, can will be same by vertical jacking control
Step precision controlling is within 4mm.In steel box-girder translation motion, key station is except the integrating action of control cluster pushing tow jack
Outside, also it is capable of achieving to ensure the synchronization of all pushing tow jack per stroke, for same main pier, the moving point based on wherein side,
Remaining is to compare with moving point and with active point, per each active point with the displacement difference control with moving point within setting value, if which
Cylinder is stretched comparatively fast in platform top, then reduce the flow of corresponding proportioning valve, conversely, then increase the flow of corresponding proportion valve, it is same with pier both sides
Step precision is can be controlled within 1mm；For different main piers, then with the moving point based on the main pier wherein side of originating terminal, other
The pushing tow jack of main pier homonymy compares therewith, if which platform top stretches cylinder comparatively fast, reduces the flow of corresponding proportioning valve, conversely,
Then increase the flow of corresponding proportion valve, the synchronization accuracy between each pier is can be controlled within 5mm, so as to realize all horizontal pushing tows
The synchronization on top.
It is of the invention by installing 1～2 photoswitch on each bridge pier in steel box-girder translation motion, in steel box-girder
Base plate on the band colour code line of its axis equal in width (general using the logos line with one fixed width) is shown
Go out, by the detection of aberration, so as to realize the detection to steel box-girder axis, if which photoswitch can't detect axis,
Then judge actual axis and design axis and deviation occur, photoswitch sends a signal and tends to act corresponding correction jack
Action detects stopping action behind axis until photoswitch, so as to realize laterally correction, by band colour code line toolization
The acetes chinensis of photoswitch are changed into the detection of steel box-girder axis by the axis of steel box-girder, and testing cost is low and grasps
Make simple, the tag line is removed after the completion of construction, any impact will not be produced on steel box-girder.
Two jacks of walking incremental launching device of the present invention, a pushing tow jack and a double acting correction
Pressure transducer is respectively mounted on each hydraulic control circuit of jack, the corresponding pressure transducer of jack is received for monitoring
The load in force, under normal circumstances the maximum differential pressure on the maximum pressure of each stress point and same bridge pier between each stress point should
In computer capacity, when there is hypertonia or the excessive situation of pressure reduction the system failure is then illustrated, now system can autostop,
And signal of reporting to the police, incremental launching device is protected by the setting of pressure transducer.
Entirely different with into stress during bridge in view of the stress of steel box-girder during pushing tow, the present invention's is whole
Based on support reaction control, the principle supplemented by absolute altitude control is carried out for the monitoring of pushing tow process, by propping up that pressure transducer is detected
Counter-force, calculates frictional force and mutually verifies with the oil gauge of installation in pushing tow jack hydraulic control loop according to the reaction of supports,
The size of each pier top thrust is adjusted according to the size of frictional resistance, and is reacted by oil gauge, by real-time detection top
Rise the support reaction of support cylinder, it is ensured that the real-time accuracy of pipe bending cylinder jacking force, complete to advance after a stroke, Suo Youding
Push oil cylinder is retracted to the starting point of next stroke, can subsequently carry out the pushing tow of next stroke, until steel box-girder is all pushed up
Shift position onto, during last time steel box-girder pushing tow, using little stroke crawl pushing method, so as to rectify a deviation and vertical shift in place.
The present invention, through the detection and control of degree of being balanced, is used for during whole pushing tow by installing on bearing beam
Detection steel box-girder along bridge to the obliquity sensor with the angle of inclination of direction across bridge, if which obliquity sensor along bridge to/
Or the angle of inclination in direction across bridge direction exceeds setting value, system is stopping alarm, by setting each obliquity sensor in Shun Qiao
To the maximum tilt angle with direction across bridge, you can the degree of balance of control steel box-girder.
The present invention, through the calculating and control for carrying out cumulative error, calculates each stress point water in steel box-girder translation motion
Flat-top pushes away the total displacement of jack movement, and deducts maximum displacement with maximum displacement and draw cumulative errors, if cumulative errors
Beyond a certain side cylinder action is then individually adjusted when requiring with rectification error.
The present invention reinforces the median ventral plate of steel box-girder both sides by stiffened panel, with the both sides median ventral plate of steel box-girder during pushing tow
For main force part, to reduce pushing up, the stress effect of base plate, it is ensured that steel box girder is not damaged；In Temporary Piers pier top cloth
Distribution beam is put, walking incremental launching device is arranged in distribution beam, installation and incremental launching construction of the distribution beam for walking incremental launching device
Platform is provided；Steel bearing beam is set between walking incremental launching device and steel box-girder beam bottom, to disperse steel box-girder beam bottom support reaction.
Compared with prior art, the present invention adopts multiple spot walking pushing tow technology, multiple stage walking incremental launching device to concentrate control
System, synchronously carries out construction and accelerates speed of application, it is ensured that construction safety；Carry out in steel box-girder jacking and during falling after rise vertical
Jacking is controlled, and pushing tow control and axis correction control is synchronized in steel box-girder translation motion, during whole pushing tow
It is real-time using pressure transducer, displacement transducer and photoswitch acetes chinensis through degree of balance control and cumulative error control
The offset distance of axis during monitor and detection steel box-girder pushing tow pressure and pushing tow, it is ensured that construction is smoothed out.
Description of the drawings
Fig. 1 for Temporary Piers in the steel box-girder pushing tow that provides of the present invention and method for correcting error layout drawing.
Fig. 2 is interim pier top facade layout drawing in the steel box-girder pushing tow for providing of the invention and method for correcting error.
Wherein, 1- Temporary Piers, 2- median ventral plates, the main piers of 3-, 4- stiffened panels, 5- steel box-girders, 6- distribution beams, 7- steel bearing beams, 8-
Walking incremental launching device, 9- jacks, 10- correction jacks, 11- steel cushion blocks, 12- vulcanie blocks.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, present disclosure is not limited to following
Embodiment.
The steel box-girder pushing tow and method for correcting error of the walking multiple spot successively incremeantal launching method technique that the present invention is provided, in steel box-girder jacking
With vertical jacking control is carried out during falling, synchronize in steel box-girder translation motion pushing tow control and axis correction control
System, through degree of balance control and cumulative error control during whole pushing tow, using pressure transducer, displacement transducer and light
Electric switch acetes chinensis monitor in real time detects the offset distance of axis during steel box-girder pushing tow pressure and pushing tow, particular content
It is as follows：
Referring to Fig. 1 and Fig. 2, Temporary Piers 1 are installed in each both sides of main pier 3, distribution beam 6 are arranged in Temporary Piers pier top, in both sides
Each Temporary Piers on be respectively mounted walking incremental launching device 8, walking incremental launching device along along bridge to arranging, be arranged in distribution beam 6,
In distribution beam 6, the both sides of walking incremental launching device arrangement steel cushion block 11, vulcanie block 12 of mating formation on steel cushion block 11, in step
Steel bearing beam 7 is laid between shoe formula incremental launching device 8 and the beam bottom of steel box-girder 5, jacking displacement is installed between steel box-girder and steel bearing beam and is passed
Sensor；The median ventral plate 2 of the both sides of steel box-girder 5, the jack of walking incremental launching device during pushing tow are reinforced by stiffened panel 4
9 act at median ventral plate 2, and the both sides median ventral plate 2 with steel box-girder 5 is as main force part；2 jackings of walking incremental launching device
Pressure sensing is respectively mounted on each hydraulic control circuit of jack, 1 pushing tow jack and 1 double acting correction jack 10
Device, the corresponding pressure transducer of jack is used to monitor the support reaction of stress point (jack)；
With all walking incremental launching devices on same main pier both sides Temporary Piers as a point pushing tow unit, each point of pushing tow unit
1 hydraulic power unit of arrangement and 1 set of PLC point of control system, each PLC point of control system is controlled by the integrated master control systems of PLC,
PLC point of control system and the integrated master control systems of PLC form electric-control system, and hydraulic control system and electric-control system are arranged in main pier
It is other；
Vertical jacking control：
During steel box-girder jacking and falling after rise, the jack piston integrating action of each walking incremental launching device leads to
The top lifting height that jacking displacement transducer detects steel box-girder is crossed, on the basis of the walking incremental launching device of wherein side, by adjusting
The whole top lifting height with side walking incremental launching device, both sides displacement difference is controlled in set point, can be by synchronization accuracy control
Within 4mm；
Because each stress point (vertical jack) configures 1 pressure transducer for monitoring each stress point
Load, the lift-up pressure value that pressure transducer is detected is converted to the support reaction value of each stress point, every by electric-control system setting
Maximum differential pressure between the maximum pressure of individual stress point and the corresponding each stress point of same main pier, in vertical jacking control process
In, if the support reaction value for stress point occur reaches the maximum between the maximum pressure of setting or the corresponding each stress point of same main pier
When pressure reduction is more than setting maximum differential pressure, hydraulic control system and all walking incremental launching device autostops of electric control system controls,
And signal of reporting to the police；
Synchronous push is controlled：
In steel box-girder translation motion, for same main pier, the moving point based on the walking incremental launching device of wherein side, its
Pushing tow jack stretches cylinder with certain speed, with side walking incremental launching device be with moving point, with moving point with active point pushing tow it is very heavy
Top is compared, and by adjustment with the pushing tow displacement of the pushing tow jack of moving point, displacement difference in both sides is controlled within setting value, together
Pier both sides synchronization accuracy is can be controlled within 1mm；For different main piers, with the walking incremental launching device of one of them main pier side
Based on moving point, the walking incremental launching device of other main pier homonymies is, with moving point, to compare with the pushing tow jack of active point with moving point,
By adjustment with the pushing tow displacement of the pushing tow jack of moving point, homonymy each walking incremental launching device displacement difference control is being set
Within value, the synchronization accuracy between each pier is can be controlled within 5mm；
It is used to monitor load change pressure transducer because the pushing tow jack of every walking incremental launching device configures one,
By electric-control system can set every pushing tow jack maximum pressure and and the corresponding each pipe bending cylinder of same main pier between
Maximum differential pressure, the frictional force between walking incremental launching device and steel box-girder is calculated according to support reaction value, and by frictional force and top
The indicating value for pushing away the oil gauge installed in jack hydraulic control loop is mutually verified, according to each pushing tow thousand of the size adjustment of frictional force
The thrust on jin top, it is ensured that the thrust of pushing tow jack is consistent with frictional force, the load that computer passes through every pushing tow jack of monitoring
Lotus situation of change, coordinates exactly the load distribution of whole system, in steel box-girder translation motion, if there is the load of pipe bending cylinder
When lotus reaches the maximum differential pressure of the maximum pressure of setting or the corresponding each pipe bending cylinder of same main pier more than setting value, hydraulic pressure control
System processed and all walking incremental launching device autostops of electric control system controls, and signal of reporting to the police；
Axis correction control：
Photoswitch is installed on each main pier or Temporary Piers, by the band of its axis equal in width on the base plate of steel box-girder
Colour code line is illustrated, by the detection of aberration, so as to realize the detection to box beam axis, and in steel box-girder translation motion,
If certain photoswitch can't detect axis, signal is sent to electric-control system, tended to act corresponding stride by electric-control system
The correction jack action of formula incremental launching device, until photoswitch detects stopping action behind axis, so as to realize axis
Correction；
Degree of balance is controlled：
Obliquity sensor is installed on steel bearing beam, each obliquity sensor is set along bridge to the allowable angle of inclination with direction across bridge
Degree, during steel box-girder pushing tow, if occur obliquity sensor along bridge to and/or direction across bridge angle of inclination beyond setting
Value, hydraulic control system and all walking incremental launching device autostops of electric control system controls, and signal of reporting to the police；
Cumulative errors are controlled：
In steel box-girder translation motion, the total displacement of each pushing tow jack movement is calculated by electric-control system, by maximum
Total displacement amount deducts minimum total displacement and measures out cumulative errors, total displacement is individually adjusted if cumulative errors exceed setting value minimum
Pushing tow jack with rectification error, during last time steel box-girder pushing tow, using little stroke crawl pushing method.
Claims (10)
1. the steel box-girder pushing tow and method for correcting error of a kind of walking multiple spot successively incremeantal launching method technique, it is characterised in that including equipment peace
Dress, vertical jacking control, synchronous push control and axis correction are controlled, and particular content is：
Equipment is installed：Temporary Piers are installed in each main pier both sides, walking incremental launching device is respectively mounted on each Temporary Piers of both sides, walk
Shoe formula incremental launching device, to arrangement, lays steel bearing beam, in steel box-girder along along bridge between walking incremental launching device and steel box-girder beam bottom
Jacking displacement transducer is installed between steel bearing beam, hydraulic control system and electric-control system are installed by main pier；
Vertical jacking control：During steel box-girder jacking and falling after rise, the jack piston system of each walking incremental launching device
One action, by jacking displacement transducer the top lifting height of steel box-girder is detected, the walking incremental launching device with wherein side is as base
Standard, by adjustment with the top lifting height of side walking incremental launching device, both sides displacement difference is controlled in set point；
Synchronous push is controlled：In steel box-girder translation motion, for same main pier, the walking incremental launching device with wherein side is
Active point, its pushing tow jack stretches cylinder with certain speed, is with moving point, with moving point and actively point with side walking incremental launching device
Pushing tow jack compares, and by adjustment with the pushing tow displacement of the pushing tow jack of moving point, the control of both sides displacement difference is being set
Within value；For different main piers, the moving point based on the walking incremental launching device of one of them main pier side, other main pier homonymies
Walking incremental launching device is, with moving point, to compare with the pushing tow jack of active point with moving point, by adjusting with the pushing tow thousand of moving point
The pushing tow displacement on jin top, by each walking incremental launching device displacement difference control of homonymy within setting value；
Axis correction control：Photoswitch is installed on each main pier or Temporary Piers, by its axis on the base plate of steel box-girder
Illustrated with the band colour code line of equal in width, by the detection of aberration, so as to realize the detection to box beam axis, in steel box-girder
In translation motion, if certain photoswitch can't detect axis, signal is sent to electric-control system, tended to act by electric-control system
The correction jack action of corresponding walking incremental launching device, until photoswitch detects stopping action behind axis, so as to
Realize that axis is rectified a deviation.
2. the steel box-girder pushing tow and method for correcting error of walking multiple spot successively incremeantal launching method technique according to claim 1, its feature
It is：Pressure transducer is respectively mounted on the hydraulic control circuit of each jack of walking incremental launching device, pressure is passed
The lift-up pressure value that sensor is detected is converted to the support reaction value of each stress point, and each stress point is set most by electric-control system
Maximum differential pressure between high pressure and the corresponding each stress point of same main pier, in vertical jacking control process, if occurring receiving
The support reaction value in force reaches maximum differential pressure between the maximum pressure of setting or the corresponding each stress point of same main pier more than setting
When determining maximum differential pressure, hydraulic control system and all walking incremental launching device autostops of electric control system controls, and signal of reporting to the police.
3. the steel box-girder pushing tow and method for correcting error of walking multiple spot successively incremeantal launching method technique according to claim 1, its feature
It is：Pressure sensing is respectively mounted on each jack of walking incremental launching device and the hydraulic control circuit of pushing tow jack
Device, the lift-up pressure value that pressure transducer is detected is converted to the support reaction value of each stress point, is pushed up according to the setting of support reaction value
The pipe bending cylinder pressure of the hydraulic control circuit of jack is pushed away, hydraulic control system and electric control system controls pipe bending cylinder are in setting
Pressure under jacking force is provided, the maximum pressure and same main pier for setting every pipe bending cylinder by electric-control system is corresponding each
Maximum differential pressure between pipe bending cylinder, in steel box-girder translation motion, if the load for pipe bending cylinder occur reaches the highest of setting
When the maximum differential pressure of pressure or the corresponding each pipe bending cylinder of same main pier is more than setting value, hydraulic control system and electric-control system
Control all walking incremental launching device autostops, and signal of reporting to the police.
4. the steel box-girder pushing tow and method for correcting error of walking multiple spot successively incremeantal launching method technique according to claim 3, its feature
It is：The particular content of pipe bending cylinder pressure of the hydraulic control circuit of pushing tow jack is set to calculate according to support reaction value
Frictional force between walking incremental launching device and steel box-girder, and by the frictional force and pushing tow jack hydraulic control loop that calculate
The indicating value of the oil gauge of installation is mutually verified, according to the thrust of each pushing tow jack of the size adjustment of frictional force so that oil gauge
Indicating value with calculate frictional force match, oil gauge indicating value with calculating frictional force match when pushing tow jack oil cylinder pressure
Power is the pipe bending cylinder pressure for setting.
5. the steel box-girder pushing tow and method for correcting error of walking multiple spot successively incremeantal launching method technique according to claim 1, its feature
It is：Obliquity sensor is installed on steel bearing beam, each obliquity sensor is set in suitable bridge to the allowable angle of inclination with direction across bridge
Degree, during steel box-girder pushing tow, if occur obliquity sensor along bridge to and/or direction across bridge angle of inclination beyond setting
Value, hydraulic control system and all walking incremental launching device autostops of electric control system controls, and signal of reporting to the police.
6. the steel box-girder pushing tow and method for correcting error of walking multiple spot successively incremeantal launching method technique according to claim 1, its feature
It is：In steel box-girder translation motion, the total displacement of each pushing tow jack movement is calculated by electric-control system, by maximum total position
Shifting amount deducts minimum total displacement and measures out cumulative errors, and the minimum top of total displacement is individually adjusted if cumulative errors exceed setting value
Jack is pushed away with rectification error.
7. the steel box-girder pushing tow of the walking multiple spot successively incremeantal launching method technique according to any one of claim 1-6 and correction side
Method, it is characterised in that：The median ventral plate of steel box-girder both sides is reinforced by stiffened panel, with the both sides median ventral plate of steel box-girder during pushing tow
For main force part.
8. the steel box-girder pushing tow of the walking multiple spot successively incremeantal launching method technique according to any one of claim 1-6 and correction side
Method, it is characterised in that：Distribution beam is arranged in Temporary Piers pier top, walking incremental launching device is arranged in distribution beam.
9. the steel box-girder pushing tow of the walking multiple spot successively incremeantal launching method technique according to any one of claim 1-6 and correction side
Method, it is characterised in that：With all walking incremental launching devices on same main pier both sides Temporary Piers as a point pushing tow unit, each point of top
Push away unit and arrange 1 hydraulic power unit and 1 set of PLC point of control system, each PLC point of control system passes through the integrated master control systems of PLC
Control, PLC point of control system and the integrated master control systems of PLC form electric-control system.
10. the steel box-girder pushing tow of the walking multiple spot successively incremeantal launching method technique according to any one of claim 1-6 and correction
Method, it is characterised in that：During last time steel box-girder pushing tow, using little stroke crawl pushing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237662.6A CN106638322A (en) | 2016-12-28 | 2016-12-28 | Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237662.6A CN106638322A (en) | 2016-12-28 | 2016-12-28 | Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique |
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| Publication Number | Publication Date |
|---|---|
| CN106638322A true CN106638322A (en) | 2017-05-10 |
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| CN201611237662.6A Pending CN106638322A (en) | 2016-12-28 | 2016-12-28 | Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique |
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| CN108978496A (en) * | 2018-08-07 | 2018-12-11 | 湖南联智智能科技有限公司 | A kind of bridge intelligence incremental launching construction system and its push construction method |
| CN109837836A (en) * | 2017-11-27 | 2019-06-04 | 广西南宁胜祺安科技开发有限公司 | Continuous Bridge incremental launching construction method for correcting error |
| CN110067404A (en) * | 2019-04-19 | 2019-07-30 | 中建一局华江建设有限公司 | A kind of deviation-rectifying system and its method for correcting error for building translation construction |
| CN110470193A (en) * | 2019-08-23 | 2019-11-19 | 中铁四院集团岩土工程有限责任公司 | A method of monitoring box beam and bridge pier relative displacement |
| CN110952463A (en) * | 2019-12-10 | 2020-04-03 | 中铁大桥（南京）桥隧诊治有限公司 | Reverse jacking reinforcement method and jacking structure of concrete box girder bridge |
| CN111691314A (en) * | 2020-06-15 | 2020-09-22 | 中国能源建设集团安徽电力建设第一工程有限公司 | Steel box girder step type multi-point pushing installation method |
| CN111794556A (en) * | 2020-07-22 | 2020-10-20 | 上海同罡建筑工程有限公司 | Building jacking control system and method |
| CN112359729A (en) * | 2020-10-23 | 2021-02-12 | 浙江毕姆信息科技有限公司 | Subway-striding walking type pushing construction method for single-hole large-span steel box girder |
| CN112442947A (en) * | 2020-11-25 | 2021-03-05 | 中铁十局集团第七工程有限公司 | Walking type pushing construction method for assembling steel box girder at upper-span busy high-speed section |
| CN114578731A (en) * | 2022-02-28 | 2022-06-03 | 中铁三局集团第四工程有限公司 | Control system of pushing equipment with monitoring function |
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| CN109837836A (en) * | 2017-11-27 | 2019-06-04 | 广西南宁胜祺安科技开发有限公司 | Continuous Bridge incremental launching construction method for correcting error |
| CN108867316A (en) * | 2018-07-18 | 2018-11-23 | 中交第三航务工程局有限公司 | Single-tower self-anchored suspension bridge Large-span Steel Box Beam walking incremental launching construction technique |
| CN108978496A (en) * | 2018-08-07 | 2018-12-11 | 湖南联智智能科技有限公司 | A kind of bridge intelligence incremental launching construction system and its push construction method |
| CN108978496B (en) * | 2018-08-07 | 2023-11-17 | 湖南联智智能科技有限公司 | Intelligent pushing construction system and method for bridge |
| CN110067404A (en) * | 2019-04-19 | 2019-07-30 | 中建一局华江建设有限公司 | A kind of deviation-rectifying system and its method for correcting error for building translation construction |
| CN110067404B (en) * | 2019-04-19 | 2023-11-03 | 中建一局华江建设有限公司 | Deviation correcting system and deviation correcting method for building translation construction |
| CN110470193B (en) * | 2019-08-23 | 2022-01-11 | 中铁四院集团工程建设有限责任公司 | Method for monitoring relative displacement between box girder and pier |
| CN110470193A (en) * | 2019-08-23 | 2019-11-19 | 中铁四院集团岩土工程有限责任公司 | A method of monitoring box beam and bridge pier relative displacement |
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| CN111794556A (en) * | 2020-07-22 | 2020-10-20 | 上海同罡建筑工程有限公司 | Building jacking control system and method |
| CN112359729A (en) * | 2020-10-23 | 2021-02-12 | 浙江毕姆信息科技有限公司 | Subway-striding walking type pushing construction method for single-hole large-span steel box girder |
| CN112442947A (en) * | 2020-11-25 | 2021-03-05 | 中铁十局集团第七工程有限公司 | Walking type pushing construction method for assembling steel box girder at upper-span busy high-speed section |
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