CN103590336B - Can the bridge formation unit of the self-service equilibrium of load-bearing and utilize its method carrying out building bridge - Google Patents
Can the bridge formation unit of the self-service equilibrium of load-bearing and utilize its method carrying out building bridge Download PDFInfo
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Abstract
The invention discloses a kind of can the bridge formation unit of the self-service equilibrium of load-bearing and utilize it to carry out the method built bridge, bridge formation unit, including the system of getting on the bus and system of getting off, and, some to cylinder type supporting leg, be arranged on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off；Control device, for controlling some oil cylinder working-pressures to cylinder type supporting leg and stroke.Present invention employs configuration three to cylinder type supporting leg, by controlling the pressure of cylinder type supporting leg, make its anti-centrifugal castor produced and pass to, more than or equal to system load-bearing rear support leg of getting on the bus, the moment that the system of getting off that the pressure of the horizontal bearing beam of system rear portion load-bearing of getting off caused is tumbled backward, ensure that the system of getting off can be in the harmony of whole process of setting a roof beam in place its load-bearing of self-service holding, ensure that the longitudinal stability of the system of getting off, there is easy and simple to handle, safety, economy, efficiency advantages of higher.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially relate to a kind of can the bridge formation unit of the self-service equilibrium of load-bearing and utilize its method carrying out building bridge.
Background technology
Bridge formation unit is mainly made up of the system of getting on the bus and the system of getting off.System of getting on the bus mainly is made up of bridge owner's structure and beam-hanging traveling crane, and system of getting off is held concurrently by tire type beam conveying vehicle and worked as.Getting on the bus and the system of getting off complements one another use, the step of its first Kong Liang setting up a bridge is as follows:
1st step, is shown in that Fig. 1-1, the bridge machine system of getting on the bus become back boom feeding beam state, rear end walking supporting leg tilts backward, load-bearing rear support leg shrinks, and system of getting off (i.e. tire type beam conveying vehicle) ships beams of concrete and is sent into below system back boom of getting on the bus from rear, and this process is referred to as " feeding beam ".
2nd step, is shown in Fig. 1-2, and after beam car feeding beam puts in place, system of getting on the bus load-bearing rear support leg falls to prop up and stands on the horizontal bearing beam in rear portion of the system of getting off, and connects.
3rd step, is shown in that Fig. 1-3, former the portable supporting leg stood on middle bridge pier are advanced to front square pier Zhi Li, make Bridge Erector become two straddle mounting beam-like states, and beams of concrete is sling from beam car by two overhead traveling cranes.
4th step, is shown in Fig. 1-4, above two beam-hanging traveling crane handling beams of concretes of system of getting on the bus to bridge opening position.
5th step, is shown in Fig. 1-5, and two beam-hanging traveling cranes of system of getting on the bus beam that fallen by beams of concrete is in place.
Said process the 3rd, 4 steps, two supporting legs one of Bridge Erector stand on front square pier, and one is stood on the horizontal bearing beam in rear portion of the system of getting off.Just when forward and backward beam-hanging traveling crane lifts by crane beams of concrete from beam car simultaneously, load capacity on the horizontal bearing beam in beam car rear portion reaches maximum, and beam car front end is delivered on bridge main beam by front hanging beam dolly as the bearing capacity on the horizontal bearing beam of the front fulcrum of loaded beams of concrete, the now horizontal bearing beam in beam car front end vanishing load (former the portable supporting leg stood on middle bridge pier is advanced to front square pier Zhi Li).Then, the instant load state of tire type beam conveying vehicle be front light after weight, extremely uneven, there is the possibility tumbled backward around rear end in vehicle.It needs to be noted, owing to being frame head Kong Liang, so beam car feeding beam parking place is generally on end of the bridge, embankment, it is ensured that beam car is tumbled the most backward, a kind of way is to drive piles in the embankment left and right side slope of concrete abutment, in order to anchor the front end of beam car；Another kind of way is to arrange preburied component when casting concrete end of the bridge, is also to anchor beam car front end, prevents from tumbling.These work are required for asking unit in charge of construction to be ready to before setting a roof beam in place, and also need to carry out removing, backfilling the aftermaths such as repairing after setting a roof beam in place.The most difficult, it is difficult to be guaranteed, and the first aperture frame beam of each bridge is required for carrying out above-mentioned work, inefficiency.
Summary of the invention
The present invention provide a kind of can the bridge formation unit of the self-service equilibrium of load-bearing and utilize it to carry out the method built bridge, need piling or the problem of preburied component during in order to solve and prior art to exist and builds a bridge.
For reaching above-mentioned purpose, the present invention provide a kind of can the bridge formation unit of the self-service equilibrium of load-bearing, including the system of getting on the bus and system of getting off, also include:
Some to cylinder type supporting leg, it is arranged on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off；
Control device, for controlling some oil cylinder working-pressures to cylinder type supporting leg and stroke.
Wherein, it is three right for being arranged on the cylinder type supporting leg on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off.
It addition, the present invention also provides for a kind of utilizing above-mentioned bridge formation unit to carry out the method built bridge, comprise the steps:
Step S101, the system of getting off of bridge machine ships beams of concrete and is sent into below system back boom of getting on the bus from rear；
Step S102, after the system feeding beam of getting off puts in place, system of getting on the bus load-bearing rear support leg falls is getting off on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing but before not yet producing pressure, and by controlling, device control is some contacts to earth to cylinder type supporting leg；Slinging, carry, fall beams of concrete during, control some oil cylinder working-pressures to cylinder type supporting leg by controlling device, equalize the pressure in the system of getting off；After beams of concrete falls on bridge opening, system of getting on the bus load-bearing rear support leg and connection between the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off are removed, and system of getting on the bus load-bearing rear support leg shrinks, and bridge formation unit becomes again back boom state, and beam car prepares to exit；
Step S103, confirms that bridge formation unit has become back boom state, controls each cylinder type supporting leg and automatically retracts；The system of getting off exits.
Further, described control device controls some oil cylinder working-pressures to cylinder type supporting leg, and detailed process is as follows:
1), each oil cylinder of control cylinder type supporting leg stretches out and contacts to earth；
2), data initialization: set each supporting leg unit oil cylinder working-pressure maximum P1max、P2max、P3max；Set suspension unit oil cylinder working-pressure maximum PmaxAnd minima Pmin；Each supporting leg unit oil cylinder is refueled to power to pressure value Pi=PimaxStop, i=1,2,3；
3), P is judgedRear extensionWhether ＞ Pmax, or, it is judged that PFront hangingWhether ＜ Pmin；If it is, go to step 4), if it is not, then terminate；Wherein, PFront hangingFor forward mounting group unit oil cylinder working-pressure, PRear extensionFor rear-mounted group unit oil cylinder working-pressure；
4), refuel in supporting leg unit oil cylinder, increase supporting leg unit oil cylinder working-pressure Pi；
5), P is judgediWhether equal to Pimax, if it is, terminate, if it is not, then go to step 3).
Further, during following setting a roof beam in place, some oil cylinder working-pressures to cylinder type supporting leg are controlled by described control device always:
A) system of, getting on the bus load-bearing rear support leg props up and stands on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off and implement connection；
B), portable supporting leg is vertical by being advanced on abutment on the pier of front in the middle of system of getting on the bus, and front and back overhead traveling crane lifts by crane beams of concrete from beam car；
C), front and back overhead traveling crane lift beams of concrete by after move forward overall process；
D), beams of concrete handling put in place, step up beam at first bridge and put in place overall process；
E) after the beam that, falls puts in place, in the middle of system of getting on the bus portable supporting leg again in the past square pier return to set a roof beam in place two vertical on intermediate beam head, system of getting on the bus load-bearing rear support leg and connection between the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off are removed, and system of getting on the bus load-bearing rear support leg shrinks.
The present invention has the beneficial effect that:
Present invention employs configuration three to cylinder type supporting leg, by controlling the pressure of cylinder type supporting leg, make its anti-centrifugal castor produced and pass to, more than or equal to system load-bearing rear support leg of getting on the bus, the moment that the system of getting off that the pressure of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off caused is tumbled backward, ensure that the system of getting off can be in the harmony of whole process of setting a roof beam in place its load-bearing of self-service holding, ensure that the longitudinal stability of the system of getting off, there is easy and simple to handle, safety, economy, efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1-1～1-5 is the process schematic that existing Bridge Erector sets up first Kong Liang；
Fig. 2 is the structural representation of system of getting off in a kind of unit of building bridge in the embodiment of the present invention；
Fig. 2-1 is the A direction view of Fig. 2；
Fig. 2-2 is the B direction view of Fig. 2；
Fig. 3 is that in the embodiment of the present invention, a kind of bridge formation unit sets up graph of a relation of getting on or off the bus when first hole beam feeding beam puts in place；
Fig. 3-1 is the A direction view of Fig. 3；
Fig. 3-2 is the B direction view of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is to configure a set of " the self-service equalizing system of load-bearing " to beam car.Pass to the moment that the system of getting off that the immense pressure of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off caused is tumbled backward via system load-bearing rear support leg of getting on the bus when its principle is that overhead traveling crane lifts by crane beams of concrete, offset and have safe surplus by anti-centrifugal castor (that is stabilizing moment) produced by the self-service equalizing system of described load-bearing, and without from outside to force anchorage style to be reached.
As shown in Fig. 2, Fig. 2-1, Fig. 2-2, the present embodiments relate to a kind of can the bridge formation unit of the self-service equilibrium of load-bearing, including the system of getting on the bus and system of getting off, wherein, install some to cylinder type supporting leg 1,2,3 (in the present embodiment, employing 3 is right, it is also possible to be increased or decreased according to practical situation) on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off；Control device 4, for controlling some oil cylinder working-pressures to cylinder type supporting leg and stroke.
Some maximum support power being allowed each oil cylinder of cylinder type supporting leg determine through design calculating.Control device and can use PLC (Programmable Logic Controller, programmable logic controller (PLC)) system, such as, getting off, system configures a set of electro-hydraulic program control system, is uniformly controlled oil cylinder working-pressure and the stroke (shrink or stretch out) of described 3 pairs of cylinder type supporting legs.The pressure of each supporting leg unit oil cylinder is passed to the increase (reduction) of the pressure of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off and is increased (reduction) with system load-bearing rear support leg of getting on the bus.System of getting off each hanging oil cylinder system is divided into before and after two groups design.Being made up of some unit hanging oil cylinder again in each group, in group, each unit hanging oil cylinder is interconnected, and i.e. in same action, in group, the pressure of each oil cylinder is equal.But pressure is the most unequal between front group and rear group hanging oil cylinder.Thus the hydraulic suspension hanging body of system of getting off the most just is divided into two hydraulic suspension centers: forward mounting center and rear-mounted center.Assuming that it is n that the unit that forward mounting group comprises hangs quantity, it is m that the unit that rear-mounted group comprises hangs quantity, then each oil cylinder working-pressure sum of forward mounting group is n × PFront hanging(PFront hangingFor forward mounting group unit oil cylinder working-pressure), its center of making a concerted effort is the geometric center of forward mounting group；In like manner definable goes out the m × P of rear-mounted groupRear extension(PRear extensionFor rear-mounted group unit oil cylinder working-pressure) and geometric center.And the pressure of described 3 pairs of supporting leg unit oil cylinders is respectively with P1、P2、P3Represent.Front and rear suspension center and the 3 pairs of cylinder type supporting legs together form the system of getting off itself and the supporting system that stands in system of getting on the bus load-bearing rear support leg on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off.In this individual system, it will be rear-mounted center that the theory that system of getting off is tumbled backward is tumbled.Tilting moment (M around this pointIncline) equal to get on the bus system load-bearing rear support leg pass to the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off get on the bus components of system as directed deadweight with overhead traveling crane lift heavy make a concerted effort (QGet on the bus) it is multiplied by its application point and the distance (D at rear-mounted center0)；Stabilizing moment (M around this pointSurely) equal to getting off the deadweight (Q of systemGet off) it is multiplied by its center of gravity and the distance at rear-mounted center, and each supporting leg unit oil cylinder working-pressure P1～P3It is multiplied by application point and the rear-mounted centre distance sum of each of which respectively.Make MSurely/MIncline≥KPeace(KPeaceSafety coefficient for more than 1) setting a roof beam in place, operation overall process all must be set up；Again according to job step the 2nd step during frame head hole beam noted earlier: fall get on the bus system load-bearing rear support leg on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off and shrink portable supporting leg in the middle of system of getting on the bus prepare to move forward in the pier top of front vertical when；Again to the 3rd step: when overhead traveling crane lifting beams of concrete；The most again to the 4th step: during front and back overhead traveling crane lifts beams of concrete reach and to when the beam that falls on bridge opening；The action of each of the above step all can cause the above each power: QGet on the bus、PFront hanging、PRear extension、P1～P3Change Deng numerical value.Then can be by adjusting the oil cylinder working-pressure P of cylinder type supporting leg at any time1～P3Size, to ensure in operation overall process M of setting a roof beam in placeSurely/MIncline≥KPeaceFormula is always set up.Above logic is written as the computer program of the process of setting a roof beam in place, program is inputted micro-electronic control case (based on intelligentized bus control system CAN-BUS), micro-electronic control case performs the computer program of process of setting a roof beam in place, real-time command is transferred to hydraulic variable flow pumping plant, variable capacity pump station presses the instruction unpack proportional solenoid of micro-electronic control case, hydraulic oil is squeezed in each supporting leg unit oil cylinder by the flow specified, real time pressure information can be passed back micro-electronic control case by the pressure sensor being arranged on oil cylinder valve block, by newer instruction being transferred to hydraulic variable flow pumping plant after running process computer program of setting a roof beam in place calculates in case always, variable capacity pump station adjusts proportional solenoid by the real-time command of micro-electronic control case and squeezes into the hydraulic fluid flow rate in each supporting leg unit oil cylinder ....So go round and begin again until setting a roof beam in place the end of job.The most visible, under 3 pairs of cylinder type supporting legs that whole frame head hole beam process is configured in the present invention and the effect of a set of electrohydraulic control system based on fieldbus (CAN-BUS) (PLC system), enable the harmony of the system of getting off its load-bearing of self-service holding, it is ensured that the longitudinal stability of system of getting off.It should be noted, however, that the safety effect condition of 3 pairs of cylinder type supporting legs on rear side of system of getting off of the present invention is its supporting ground should be solid roadbed, and can not otherwise have the danger of pressure break frame beams of concrete on Zhi Yi frame beams of concrete bridge floor.
As shown in Fig. 3, Fig. 3-1, Fig. 3-2, it addition, the embodiment of the present invention further relates to a kind of utilize above-mentioned bridge formation unit to carry out the method built bridge, comprise the steps:
Step S101, system that what bridge machine was got on the bus get off ships beams of concrete and is sent into below system back boom of getting on the bus from rear；
Step S102, after the system feeding beam of getting off puts in place, system of getting on the bus load-bearing rear support leg falls is getting off on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing but before not yet producing pressure, by controlling, device control is some contacts to earth to cylinder type supporting leg, slinging, carry, fall beams of concrete during, control some oil cylinder working-pressures to cylinder type supporting leg by controlling device, equalize the pressure in the system of getting off, and then ensure that the system of getting off will not be tumbled.Detailed process is as follows:
Start the electro-hydraulic presetting apparatus 4 of the embodiment of the present invention, i.e. in drivers' cab on operating board, successively press total button and the START button of this control device 4, then control device 4 will slinging, carry, fall beams of concrete during automatically calculate each oil cylinder working-pressure, until first hole beams of concrete falls on bridge opening.
Concrete calculating process is as follows:
1), starting, each oil cylinder of cylinder type supporting leg stretches out and contacts to earth；
2), data initialization: set each supporting leg unit oil cylinder working-pressure maximum P1max、P2max、P3max；Set suspension unit oil cylinder working-pressure maximum PmaxAnd minima Pmin；Each supporting leg unit oil cylinder is refueled to power to pressure value Pi=PimaxStop, i=1,2,3；
3), P is judgedRear extensionWhether ＞ Pmax, or, it is judged that PFront hangingWhether ＜ Pmin；If it is, go to step 4), if it is not, then terminate.
4), refuel in supporting leg unit oil cylinder, increase supporting leg unit oil cylinder working-pressure Pi；
5), P is judgediWhether equal to Pimax, if it is, terminate, if it is not, then go to step 3).
After first hole beams of concrete falls on bridge opening, system of getting on the bus load-bearing rear support leg and connection between the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off are removed, and system of getting on the bus load-bearing rear support leg shrinks, and bridge formation unit becomes again back boom state, and beam car prepares to exit.Setting a roof beam in place in overall process following, described control device 4 is always maintained at running status, and its time-histories span includes:
A) system of, getting on the bus load-bearing rear support leg props up and stands on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off and implement connection；
B), system of getting on the bus in the middle of portable supporting leg vertical by being advanced on abutment on the pier of front, front and back overhead traveling crane lifts by crane beams of concrete from beam car；
C), front and back overhead traveling crane lift beams of concrete by after move forward overall process；
D), beams of concrete handling put in place, step up beam at first bridge and put in place overall process；
E) after the beam that, falls puts in place, in the middle of system of getting on the bus portable supporting leg again in the past square pier return to set a roof beam in place two vertical on intermediate beam head, system of getting on the bus load-bearing rear support leg and connection between the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off are removed, and system of getting on the bus load-bearing rear support leg shrinks.
Step S103, confirms that bridge formation unit has become back boom state, can press " end " button of electro-hydraulic presetting apparatus 4 in drivers' cab on operating board, the most each cylinder type supporting leg 1,2,3 automatically retracts；Regain the most completely and again the main switch controlling device 4 is closed.At this moment the system of getting off can exit, and goes to transport beam as beam car to rear.
As can be seen from the above-described embodiment, the present invention provides a kind of unit of building bridge the gets off system self-service balancing technique of load-bearing when setting up first hole beam, successful development for a kind of New-Type Bridge Girder Erection Machine group solves a key technical problem, described New-Type Bridge Girder Erection Machine group is that a kind of high-speed railway is accompanied with frame, tunnel inside and outside universal bridging unit, it is a domestic and international pioneering new technique, has obvious social and economic benefits.Described this bridge formation unit is got off when the first hole beam of one bridge of frame before system weight bearing situations is and is weighed the most afterwards, and extremely uneven, vehicle can occur the situation tumbled backward.
Present invention employs configuration three to cylinder type supporting leg, by controlling the pressure of cylinder type supporting leg, make its anti-centrifugal castor produced and pass to, more than or equal to system load-bearing rear support leg of getting on the bus, the moment that the system of getting off that the pressure of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off caused is tumbled backward, ensure that the system of getting off can be in the harmony of whole process of setting a roof beam in place its load-bearing of self-service holding, ensure that the longitudinal stability of the system of getting off, there is easy and simple to handle, safety, economy, efficiency advantages of higher.
Obviously, those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to the present invention.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. can the bridge formation unit of the self-service equilibrium of load-bearing, including the system of getting on the bus and system of getting off, it is special
Levy and be, also include:
Some to cylinder type supporting leg, it is arranged on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off；
Control device, for controlling some oil cylinder working-pressures to cylinder type supporting leg and stroke.
The most as claimed in claim 1 can the bridge formation unit of the self-service equilibrium of load-bearing, it is characterised in that peace
It is three right for being contained in the cylinder type supporting leg on rear side of the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off.
3. utilizing the bridge formation unit described in claim 1 or 2 to carry out the method built bridge, its feature exists
In, comprise the steps:
Step S101, the system of getting off of bridge machine ships beams of concrete and is sent into system back boom of getting on the bus from rear
Lower section；
Step S102, after the system feeding beam of getting off puts in place, system of getting on the bus load-bearing rear support leg falls at system car of getting off
On the horizontal bearing beam of frame girder rear portion load-bearing but before not yet producing pressure, control some to oil cylinder by controlling device
Formula supporting leg contacts to earth；Slinging, carry, fall beams of concrete during, control some by controlling device
Oil cylinder working-pressure to cylinder type supporting leg, equalizes the pressure in the system of getting off；Beams of concrete falls on bridge opening
Afterwards, system of getting on the bus load-bearing rear support leg and get off to connect between the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing and tear open
Removing, system of getting on the bus load-bearing rear support leg shrinks, and bridge formation unit becomes again back boom state, and beam car prepares to exit；
Step S103, confirms that bridge formation unit has become back boom state, controls each cylinder type supporting leg and automatically retracts；
The system of getting off exits.
4. the method built bridge as claimed in claim 3, it is characterised in that if described control device controls
The dry oil cylinder working-pressure to cylinder type supporting leg, detailed process is as follows:
1), each oil cylinder of control cylinder type supporting leg stretches out and contacts to earth；
2), data initialization: set each supporting leg unit oil cylinder working-pressure maximum P1max、P2max、P3max；If
Determine suspension unit oil cylinder working-pressure maximum PmaxAnd minima Pmin；Each supporting leg unit oil cylinder is refueled to power extremely
Pressure value Pi=PimaxStop, i=1,2,3；
3), P is judgedRear extensionWhether > Pmax, or, it is judged that PFront hangingWhether < Pmin；If it is, go to step 4),
If it is not, then terminate；Wherein, PFront hangingFor forward mounting group unit oil cylinder working-pressure, PRear extensionFor rear-mounted group unit
Oil cylinder working-pressure；
4), refuel in supporting leg unit oil cylinder, increase supporting leg unit oil cylinder working-pressure Pi；
5), P is judgediWhether equal to Pimax, if it is, terminate, if it is not, then go to step 3).
5. the method for the bridge formation as described in claim 3 or 4, it is characterised in that in following process of setting a roof beam in place
In, some oil cylinder working-pressures to cylinder type supporting leg are controlled by described control device always:
A) system of, getting on the bus load-bearing rear support leg props up and stands on the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing of getting off and execute
Row connection；
B), portable supporting leg is vertical by being advanced on abutment on the pier of front in the middle of system of getting on the bus, front and back overhead traveling crane from
Beams of concrete is lifted by crane on beam car；
C), front and back overhead traveling crane lift beams of concrete by after move forward overall process；
D), beams of concrete handling put in place, step up beam at first bridge and put in place overall process；
E), after the beam that falls puts in place, in the middle of system of getting on the bus portable supporting leg again in the past square pier return to set a roof beam in place two across
On intermediate beam head vertical, system of getting on the bus load-bearing rear support leg with get off the system vehicle frame main beam horizontal bearing beam of rear portion load-bearing it
Between connection remove, system of getting on the bus load-bearing rear support leg shrinks.
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| CN201210292991.6A CN103590336B (en) | 2012-08-17 | 2012-08-17 | Can the bridge formation unit of the self-service equilibrium of load-bearing and utilize its method carrying out building bridge |
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| CN201210292991.6A CN103590336B (en) | 2012-08-17 | 2012-08-17 | Can the bridge formation unit of the self-service equilibrium of load-bearing and utilize its method carrying out building bridge |
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| CN110607762A (en) * | 2019-10-18 | 2019-12-24 | 合肥正浩机械科技有限公司 | Device for integrating bogie of girder transporting vehicle and bridge erecting and girder feeding mechanism |
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| JP4414906B2 (en) * | 2005-02-04 | 2010-02-17 | 株式会社野田自動車工業所 | Bridge girder construction and removal method and bridge girder construction equipment |
| CN201610102U (en) * | 2010-01-10 | 2010-10-20 | 秦皇岛天业通联重工股份有限公司 | Ultra-low beam transport car |
| KR100989892B1 (en) * | 2010-06-30 | 2010-10-26 | (주) 모스펙 | Crane for constructing girder and constructing method using the same |
| CN102425120B (en) * | 2011-08-29 | 2013-12-18 | 中铁科工集团有限公司 | Split guide beam type tunnel-passing bridge girder erecting machine |
| CN102561200B (en) * | 2012-01-20 | 2012-12-05 | 中铁一局集团有限公司 | Pushing device for bridge erecting machine to pass roadbed and method for bridge erecting machine to pass roadbed |
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