CN109695204A - A kind of Bridge Erector and bridge erection method - Google Patents
A kind of Bridge Erector and bridge erection method Download PDFInfo
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- CN109695204A CN109695204A CN201810740837.8A CN201810740837A CN109695204A CN 109695204 A CN109695204 A CN 109695204A CN 201810740837 A CN201810740837 A CN 201810740837A CN 109695204 A CN109695204 A CN 109695204A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 36
- 230000007306 turnover Effects 0.000 claims abstract description 13
- 230000000916 dilatatory effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
Of the invention a kind of entitled Bridge Erector and beam erecting method.Belong to bridge erection technical field.It is mainly to provide a kind of New-Type Bridge Girder Erection Machine and its beam erecting method without lower nose girder.Being mainly characterized by comprising: for it includes girder, front leg strut, auxiliary leg, rear support leg, preceding trolley, rear trolley, lifting mechanism, hydraulic system and electrical system；Girder lower part is equipped with track along longitudinal direction, and front leg strut upper end is equipped with train out of shape, and train out of shape and track form longitudinal roll and cooperate；It is hinged in the middle part of auxiliary leg upper end and girder, turnover mechanism is equipped between auxiliary leg and girder；Rear support leg is enclosed type leg structure, and top is fixedly connected with girder；Lifting mechanism forms hoisting system of setting a roof beam in place by wirerope with preceding hoisting overhead travelling crane, rear hoisting overhead travelling crane.The present invention has the characteristics that without configuring lower nose girder, becoming Bridge Erector across being fused to the Bridge Erector and bridge erection method that same process, applicability are stronger, are mainly used for tunnel and are used cooperatively with low level beam car with via hole operation.
Description
Technical field
The invention belongs to bridge erection technical fields, and in particular to a kind of New-Type Bridge Girder Erection Machine and bridge erection method.
Background technique
Currently, existing Bridge Erector is made of host and lower nose girder, operation of setting a roof beam in place needs to support by huge lower nose girder
Just achievable, since lower launching nose length is long, weight is big, needs that assistant crown block is arranged in crane's major girder front end, by assistant crown block
Lower nose girder is sling with auxiliary leg and completes via hole, and the type Bridge Erector operation procedure is many and diverse, inefficiency, safety are poor.It is existing
Bridge Erector in complete machine height it is high, especially rear support leg Support Position height is high, for crossing the low level beam car feeding beam in tunnel, needs
Auxiliary device, which is arranged, can complete feeding beam operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of New-Type Bridge Girder Erection Machine and its bridge erection method without lower nose girder.
Lower nose girder need not be arranged in the Bridge Erector, can complete via hole, operation of setting a roof beam in place.The auxiliary leg of configuration changes the via hole of Bridge Erector
Mode becomes Bridge Erector across being fused to same process with via hole operation, and when Bridge Erector via hole, which completes, to be become across so that Bridge Erector
Operating efficiency greatly improves.
The technical solution of Bridge Erector of the present invention is: a kind of Bridge Erector, including girder, from front to back successively with girder phase
In conjunction with front leg strut, auxiliary leg and rear support leg, and the preceding trolley, the rear trolley, lifting machine that are mounted on girder
Structure, hydraulic system and electrical system, the preceding hoisting overhead travelling crane, rear hoisting overhead travelling crane are mounted on girder upper inner track, special
Sign is: the girder lower part is equipped with track along longitudinal direction, and front leg strut upper end is equipped with train out of shape, and train out of shape forms vertical with track
Cooperate to rolling；It is hinged in the middle part of the auxiliary leg upper end and girder, turnover mechanism is equipped between auxiliary leg and girder；It is described
Rear support leg is enclosed type leg structure, and top is fixedly connected with girder；The lifting mechanism and preceding hoisting overhead travelling crane, rear hoisting overhead travelling crane are logical
It crosses wirerope and forms hoisting system of setting a roof beam in place.
Front leg strut described in the technical solution of Bridge Erector of the present invention further includes shoulder pole girder, scalable column, jacking
Oil cylinder, laterally urges mechanism and bearing beam at thrust articulated bearing；Two scalable columns are connected by the stand column and beam between it
Frame；Train out of shape includes train pedestal, preceding tugboat seat and rear dragging wheel seat, and train pedestal includes base crossbeam and along base crossbeam
The longitudinally projecting pedestal stringer in both ends, two rear dragging wheel seats are separately mounted to the both ends of base crossbeam, two preceding tugboat seat difference
It is mounted on the outer end of pedestal stringer, the bottom of base crossbeam was connected to the shoulder pole girder for being fixed on scalable the upper end of the column and connects steel pin
Hingedly；Preceding tugboat seat is equipped with preceding tugboat system, and rear dragging wheel seat is equipped with rear dragging wheel system, preceding tugboat system, rear dragging wheel system
Longitudinal roll is formed with track to cooperate；Jacking cylinder is arranged between stand column and beam and pedestal stringer；The lower pillar stand crossbeam of frame
By three thrust articulated bearings and laterally urges mechanism and connect with bearing beam.
Auxiliary leg described in the technical solution of Bridge Erector of the present invention includes two telescopic columns, Mei Geli
Upper pillar stand, lower pillar stand and support cylinder of the column with are constituted, and support cylinder is connected between upper pillar stand and lower pillar stand；It is upper vertical
Column upper end passes through pin shaft and main beam pivot；Turnover mechanism includes upper overturning oil cylinder and lower overturning oil cylinder, and upper overturning oil cylinder is connected to
Between upper pillar stand upper end and girder, lower overturning oil cylinder is connected to lower pillar stand lower end and adjusts between support；Adjust support lower part peace
Equipped with telescopic oil cylinder.
Rear support leg described in the technical solution of Bridge Erector of the present invention includes saddle beam, the inner crest face point by top
Two rear support leg upper beams not connect with saddle beam both ends, two connect respectively with two rear support leg upper beam outside bottom surfaces
The O-shaped leg structure of closing that rear support leg curved beam, the rear support leg lower beam being connected between two rear support leg curved beams are constituted；Under rear support leg
Crossbeam both ends bottom, which is respectively equipped with, is equipped with hydraulic force equalization mechanism with rear support leg mechanism out of shape, rear support leg mechanism out of shape；It is propped up after two
Vertical overturning oil cylinder is equipped between leg upper beam lateral surface and left and right rear support leg curved beam 4c；On the outside of left and right rear support leg upper beam with
Lateral overturning oil cylinder is equipped between girder；It is bolted between two rear support leg upper beam medial surfaces and girder.
Preceding hoisting overhead travelling crane described in the technical solution of Bridge Erector of the present invention and rear hoisting overhead travelling crane are separately mounted to lead
The front-rear position of beam；All include the sprocket wheel vertical shift system being mounted on two siding track of girder, is movably arranged on the low of bottom of frame
The heavy shift unit in position, is fixedly mounted on the raising train of frame interior, the suspender connecting through wirerope with raising train；Girder
Front end is equipped with support frame, which forms three by wirerope with preceding hoisting overhead travelling crane, rear hoisting overhead travelling crane and lifting mechanism and light
It hangs, 4 balance systems.
Low level heavy type shift unit described in the technical solution of Bridge Erector of the present invention and vehicle frame pass through vertical pin shaft
Connection；Low level heavy type shift unit top is equipped with sliding bearing.
Girder described in the technical solution of Bridge Erector of the present invention is variable cross-section box type beam, including two longitudinal directions are parallel
Box beam, there are two horizontal connection beams for connection between two box beams；Adjusting support is L-type.
The technical solution of bridge erection method of the present invention is: a kind of bridge erection method using above-mentioned Bridge Erector,
Characterized by the following steps:
Front leg strut is supported on front bridge pier pier top, adjusts the verticality of front leg strut, making train out of shape is that sliding rubs
It wipes；By rear support leg jacking heavy-duty oil cylinder support；Auxiliary leg is voluntarily overturn to 90 ° and is fixed in the middle part of girder；Bridge Erector prepares
It sets a roof beam in place；
It is in place that beam car transports beam；Lifting beam piece simultaneously will carry beam trolley on the back and drive into girder bottom, carry beam trolley on the back and beam piece moves forward, preceding
Trolley takes beam, and dilatory feeding beam synchronous with beam trolley is carried after beam car on the back；
It is carried on the back after beam car below beam trolley moving beam piece to rear trolley, rear trolley is by taking beam below suspender；
Beam car returns to Liang Chang and fills beam；By electrical system control lifting mechanism, keep preceding trolley and rear trolley same
Moved further controls forward and backward trolley completion and falls Liang Zuoye to position of setting a roof beam in place；
Rear support leg mechanism out of shape is fallen on the track of bridge floor laying, is started auxiliary leg turnover mechanism, is downwardly turned over 90 °, make
Auxiliary leg overturning in the middle part of girder is set above bridge floor, so that beam face of the auxiliary leg from erection is had spacing by adjusting；
Rear support leg is driven by wheel group out of shape, moves forward complete machine；When rear support leg is moved to front leg strut rear certain distance
When, auxiliary leg support makes front leg strut come to nothing；
By train out of shape, voluntarily via hole shrinks auxiliary leg, supports front leg strut to front bridge pier before front leg strut；
Second of the Bridge Erector auxiliary leg that moves ahead in place and turn down, via hole completion, Bridge Erector are in state to be set a roof beam in place.
Described in the technical solution of bridge erection method of the present inventionIn step, first starts and turned under auxiliary leg
Turn oil cylinder, make to adjust support overturning, restart upper overturning oil cylinder, sets auxiliary leg overturning in the middle part of girder above bridge floor, lead to
It overregulates support cylinder and adjusts support, make with a certain distance from beam face of the auxiliary leg from erection have.
Described in the technical solution of bridge erection method of the present inventionIn step, when foreleg supports stress, lead to
It crosses the forward and backward tugboat system of adjustment oil cylinder and girder is rolling friction and monitoring system, guarantee the safety of complete machine via hole.
Compared with prior art, the present invention its biggest advantage and projecting point are: 1, without configuring lower nose girder, can be realized
Bridge Erector via hole is set a roof beam in place operation, keeps complete machine structure light and handy, easy to operate；2, the design of auxiliary leg changes traditional Bridge Erector
Via hole mode, become Bridge Erector across same process is fused to via hole operation, it is convenient to construct, and greatly improves construction efficiency；3,
Rear support leg configures 4 great tonnage hydraulic oil cylinders and carries out the traditional mechanical force equalization mechanism of hydraulic balanced substitution, greatly reduces biography
Limitation of the system rear supporting leg of bridge erecting machine to feeding beam height, meets the requirement of feeding beam in tunnel, applicability is stronger；4, forward and backward lifting is small
The running mechanism of vehicle is low level heavy type body transporting unit, walks consistent, the synchronization of carrying beam trolley accessory on the back of line mode and traction mechanism and beam car
Property it is easily controllable, and effectively reduce the height space of complete machine, it is ensured that take in tunnel and under the limited space conditions of tunnel face
Beam.
Present invention is mainly used for the Bridge Erectors and bridge erection method crossing tunnel and be used cooperatively with low level beam car.
Detailed description of the invention
Fig. 1 is the main view of Bridge Erector of the present invention.
Fig. 2 is front leg strut position cross-sectional view in Fig. 1.
Fig. 3 is auxiliary leg position cross-sectional view in Fig. 1.
Fig. 4 is rear support leg position cross-sectional view in Fig. 1.
Fig. 5 is preceding overweight small truck position cross-sectional view in Fig. 1.
Fig. 6 is the main view of front leg strut.
Fig. 7 is the left view of front leg strut.
Fig. 8 is the main view of auxiliary leg.
Fig. 9 is the left view of auxiliary leg.
Figure 10 is the main view of rear support leg.
Figure 11 is the left view of rear support leg.
Figure 12 is the main view of preceding trolley.
Figure 13 is that the present invention prepares the standard construction process figure set a roof beam in place.
Figure 14 is the standard construction process figure of the present invention dilatory feeding beam synchronous with beam car.
Figure 15 is the standard construction process figure of the forward and backward trolley hanging beam of the present invention.
Figure 16 is that the present invention completes to fall the standard construction process figure of beam.
Figure 17 is that auxiliary leg of the present invention is overturn to the via hole construction process figure of bridge floor.
Figure 18 is the via hole construction process figure that front leg strut of the present invention comes to nothing.
Figure 19 is the via hole construction process figure that front leg strut of the present invention to front bridge pier supports.
Figure 20 is the via hole construction process figure that state to be set a roof beam in place was completed and be in via hole of the present invention.
Marked in the figure: 1. girders；2. front leg strut；2a. rear dragging wheel system；Tugboat system before 2b.；2c. steel pin；2d.
Shoulder pole girder；2e. telescopic column；2f. lower pillar stand crossbeam；2g. bearing beam；2h. transverse-moving mechanism；3. auxiliary leg；3a. is vertical
Column；3b. pin shaft；The upper overturning oil cylinder of 3c.；3d. support cylinder；Overturning oil cylinder under 3e；3f. adjusts support；4. rear support leg；
4a. saddle beam；4b. rear support leg upper beam；4c. rear support leg curved beam；4d. rear support leg lower beam；The hydraulic force equalization mechanism of 4e.；
4f. rear support leg mechanism out of shape；4g. track out of shape；The vertical overturning oil cylinder of 4h.；Trolley before 5.；5a. low level heavy type is moved
Dynamic device；5b. vehicle frame；5c. wirerope；5d. raising train；The vertical pin shaft of 5e.；5f. sliding bearing；5g. sprocket wheel is vertical
Shifting system；5h. suspender；Trolley after 6.；7. lifting mechanism；8. hydraulic system；9. electrical system.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As Figure 1-Figure 5, Bridge Erector of the invention includes girder 1, the preceding branch successively combined from front to back with girder 1
Leg 2, auxiliary leg 3, rear support leg 4, and the preceding trolley 5, rear trolley 6, the lifting mechanism 7, liquid that are mounted on girder 1
Pressure system 8 and electrical system 9.Wherein, girder 1 is made of two parallel box beams in longitudinal direction, and there are two horizontal between two box beams
Connection beam link together, girder 1 be variable cross-section box type beam.Front leg strut 2 is movable supporting legs, passes through train out of shape and girder 1
The track of lower section forms longitudinal roll and cooperates.Auxiliary leg 3 is temporary support leg, hinged with girder 1, is realized by turnover mechanism
Wide-angle overturning.Rear support leg 4 is the fixed supporting leg for also serving as power source out of shape, and top is fixedly connected with girder 1, with girder 1 rear
End forms enclosed type leg structure.Preceding hoisting overhead travelling crane 5, rear hoisting overhead travelling crane 6 are mounted on the girder upper inner track of left and right, lifting machine
Structure 7 and preceding hoisting overhead travelling crane 5, rear hoisting overhead travelling crane 6 and 1 end of girder, which are supported, forms hoisting system of completely setting a roof beam in place by wirerope.
As shown in Figure 6, Figure 7, front leg strut 1 is inverted triangle structure, further includes shoulder pole girder 2d, scalable column 2e, jacking oil
Cylinder, thrust articulated bearing laterally urge mechanism 2h and bearing beam 2g.Two scalable column 2e are connected by the stand column and beam between it
It is connected into frame.Train out of shape includes preceding tugboat system 2b and rear dragging wheel system 2a, and tugboat system includes train pedestal, preceding tugboat seat
With rear dragging wheel seat, train pedestal includes base crossbeam and the pedestal stringer longitudinally projecting along base crossbeam both ends, tugboat after two
Seat is separately mounted to the both ends of base crossbeam, and two preceding tugboat seats are separately mounted to the outer end of pedestal stringer, the bottom of base crossbeam
Portion was connected to that meet steel pin 2c hinged with the shoulder pole girder 2d for being fixed on the upper end scalable column 2e.Preceding tugboat seat is equipped with preceding tugboat,
Rear dragging wheel seat is equipped with rear tugboat, and preceding tugboat, rear tugboat and track form longitudinal roll and cooperate.Preceding tugboat system 2b, rear tugboat
System 2a is existing product.Jacking cylinder is arranged between stand column and beam and pedestal stringer, and telescopic column 2e passes through jacking cylinder
The adjusting for completing height, when upper abutment, telescopic column 2e can dig forward 90 °.It is horizontal with lower pillar stand below two telescopic column 2e
Beam 2f is bolted, and lower pillar stand crossbeam 2f is set there are three thrust articulated bearing and laterally urging mechanism 2h, can be with bearing beam 2g
Allow fine rotation when transverse shifting, meets the erection needs of Curved Beam Bridge.
As shown in Figure 8, Figure 9, auxiliary leg 3 is L-shaped structure, including two telescopic column 3a, each column 3a
Upper pillar stand, lower pillar stand and support cylinder 3d with are constituted, and support cylinder 3d is connected between upper pillar stand and lower pillar stand, on
The upper end of the column is hinged by pin shaft 3b and 1 mounting base of girder, and mounting base is connect with girder 1 by high-strength bolt.Turnover mechanism packet
Overturning oil cylinder 3c and lower overturning oil cylinder 3e are included, upper end turnover mechanism 3c movable end is mounted on upper pillar stand upper end, fixing end installation
On the fixed hinged seat at 1 middle part of girder, lower turnover mechanism 3e fixing end is mounted on lower pillar stand lower end, and movable end is mounted on bottom
It adjusts on support 3f.Lower pillar stand lower part cuts with scissors by lower axle with the adjusting support top 3f and connect pin shaft and fixes, and adjusts under support 3f
Portion is equipped with telescopic oil cylinder, and the fine tuning for auxiliary leg is flexible, and telescopic oil cylinder is supported in box beam when via hole operation.Column
3a can be realized two-stage height adjustment by support cylinder 3d and telescopic oil cylinder.Adjusting support 3f is L-type connecting lever.Upper overturning oil cylinder
3c is for entire auxiliary leg of turning back, and lower overturning oil cylinder 3e is for the adjusting support 3f that turns back.
Upper pillar stand, lower pillar stand can be the rectangular configuration that steel plate is welded, and four sides is set on the outside of upper pillar stand inside and lower pillar stand
It is equipped with sliding plate, makes lower pillar stand can be smoothly flexible along upper pillar stand by support cylinder effect, upper pillar stand is equipped with lower pillar stand two sides
For installing the circular hole of bolt.Support cylinder is mounted on the inside of upper pillar stand and lower pillar stand, can reduce structure size, is saved empty
Between.Upper pillar stand, lower pillar stand adjust support 3f composition L-shaped structure setting, are to solve auxiliary leg erect-position supporting point and be located at
Above box-shaped girder web, so that box beam is crossed and bear the pressure that auxiliary leg is transmitted, box beam will not be damaged, more
Safety.The reflexibie mode of the present invention is retracted into girder side automatically, and closely girder, and Bridge Erector is facilitated to cross tunnel.
As shown in Figure 10, Figure 11, rear support leg is closing " O " type leg structure, is the heavily loaded support leg of complete machine and out of shape dynamic
Power source.Rear support leg 4 includes the saddle beam 4a on top, and the both ends of saddle beam 4a are respectively and in left and right rear support leg upper beam 4b
It is bolted above side, the outside bottom surface of left and right rear support leg upper beam 4b passes through spiral shell with left and right rear support leg curved beam 4c respectively
It tethers and connects, be bolted between left and right rear support leg curved beam 4c by bolt and the both ends rear support leg lower beam 4d.After left and right
It is bolted between supporting leg upper beam 4b medial surface and girder 1.The rear support leg side lower beam 4d passes through with trolley mounting base
It is bolted, rear support leg mechanism 4f out of shape is connect with trolley mounting base by hydraulic force equalization mechanism 4e, and hydraulic force equalization mechanism 4e is adopted
, can be in due course balanced with support cylinder, guarantee all rear support legs mechanism 4f stress equalization out of shape, and greatly reduce Bridge Erector
Limitation of the rear support leg 4 to feeding beam height.It is all provided between left and right rear support leg upper beam 4b lateral surface and left and right rear support leg curved beam 4c
There is vertical overturning oil cylinder 4h, movable free bearing is equipped between rear support leg upper beam 4b and rear support leg curved beam 4c, is used for rear support leg curved beam
Rear support leg curved beam 4c and rear support leg upper beam 4b's is hinged when 4c is vertically overturn.When vertical overturning oil cylinder 4h work, with activity
Free bearing is that axis drives rear support leg curved beam 4c completion to be folded up movement.On the outside of left and right rear support leg upper beam 4b between girder 1
Movable free bearing, rear support leg when for laterally overturning are equipped with equipped with lateral overturning oil cylinder, between rear support leg upper beam 4b and girder 1
Crossbeam 4b is hinged with girder 1.When the work of lateral overturning oil cylinder, using movable free bearing as the rear support leg curved beam after axis Foldable
4c and rear support leg upper beam 4b completes laterally 90 ° of foldings, until close to girder 1.When crossing tunnel, the saddle beam 4a on supporting leg top is removed
Pass through lateral turnover mechanism with rear support leg lower beam 4d, supporting leg two sides rear support leg upper beam 4b and rotate 90 °, is gone to from supporting leg plane
Nose girder plane, rear support leg curved beam 4c is dug upwards by vertical turnover mechanism, to reduce the width in Bridge Erector at vehicle bearing
And height, adapt to the Clearance requirement in tunnel.Rear support leg can pass through bridge formation in low level beam car and in the case where pack support assorted
Machine has mechanism by oneself and carries out folding shrinking, packs through tunnel, and can be restored by own institutions to bridge formation state in tunnel face.
Front leg strut 2 and rear support leg 4 are heavily loaded support leg, and front leg strut 2 can complete voluntarily via hole by equipment of itself,
Rear support leg 4 can cooperate the rear dragging wheel system 2a and preceding tugboat system 2b of front leg strut 2 to complete complete machine via hole on track 4g.
As shown in figure 12, preceding hoisting overhead travelling crane 5 and 6 structure type of rear hoisting overhead travelling crane are almost the same, are separately mounted to girder 1
Front-rear position all includes the sprocket wheel vertical shift system 5g being mounted in left and right box beam inner track, is movably arranged on the bottom vehicle frame 5b
Low level heavy type shift unit 5a, the raising train 5d being fixedly mounted on inside vehicle frame 5b, and pass through wirerope 5c and raising
5 h of suspender of train 5d connection.1 rear end of girder is equipped with support frame, preceding hoisting overhead travelling crane 5, rear hoisting overhead travelling crane 6, lifting mechanism 7 and master
The support frame of 1 rear end of beam forms 3 points of liftings by wirerope 5c, and 4 balance systems complete taking beam, moving Liang Heluo for beam piece
Beam operation.
Low level heavy type shift unit 5a is connect with vehicle frame 5b by vertical pin shaft 5e, and the top low level heavy type shift unit 5a is set
There is sliding bearing 5f, can allow that fine rotation occurs when hoisting beam piece is out of shape, low level heavy type shift unit 5a is effectively reduced
Lateral contact force.
Bridge erection method of the invention, follows the steps below.
Front outrigger for bridge girder erection machine 2 is supported on front bridge pier pier top, adjusts hanging down for front leg strut 2 by the first step as shown in figure 13
Straight degree, the train out of shape of tugboat system 2a and rear dragging wheel system 2b is sliding friction before making, and auxiliary leg 3 is voluntarily overturn
90 ° and it is fixed on the middle part of girder 1, by adjusting the jacking of oil cylinder in hydraulic force equalization mechanism 4e, makes the bottom lower beam 4d and beam face
Space increases, and places cushion block in the bottom lower beam 4d, then shrinks oil cylinder in hydraulic force equalization mechanism 4e, make the out of shape of rear support leg 4
Mechanism 4f is detached from track 4g out of shape, and mechanism 4f support out of shape is made to be converted to cushion block support.Bridge Erector preparation is set a roof beam in place.
Second step as shown in figure 14, beam car transport that beam is in place, and lifting beam piece simultaneously will carry beam trolley on the back and drive into box beam bottom, carry beam on the back
Trolley moves forward beam piece, and trolley 5 proceeds to main beam rear end before Bridge Erector, and suspender 5h is mounted on beam piece front end, is installed
Afterwards, it is linked together the control system of beam car and Bridge Erector, controls movement speed, is carried on the back after trolley 5 and beam car before making
Beam trolley synchronizes dilatory feeding beam.
Third step as shown in figure 15 carries beam trolley moving beam piece after beam car on the back to rear 6 lower section of trolley, rear trolley
6, by taking beam below suspender 5e, separate the control system of beam car and Bridge Erector.
4th step as shown in figure 16, beam car return to Liang Chang and fill beam.The elevator of lifting mechanism 7 is controlled by electrical system 9
Machine makes preceding trolley 5 and 6 synchronizing moving of rear trolley to position of setting a roof beam in place, before the rope stretching amount control by controlling hoist engine,
The completion of trolley 5,6 afterwards falls Liang Zuoye.
5th step as shown in figure 17, rear support leg 4 make wheel group 4f out of shape fall in bridge floor laying by reducing support cylinder 4e
On track 4g, first start the lower overturning oil cylinder 3e of auxiliary leg 3, makes to adjust support 3f overturning, restart upper overturning oil cylinder 3c, make
Auxiliary leg 3 overturns in the middle part of girder 1 and sets above bridge floor, by adjusting support cylinder 3d and adjusting support 3f, makes auxiliary leg 3
With a certain distance from beam face from erection has.
6th step as shown in figure 18, rear support leg 4 are driven by wheel group out of shape, move forward complete machine.When auxiliary leg 3 is moved
When moving 2 rear certain distance of front leg strut, support auxiliary leg 3 makes front leg strut come to nothing.
7th step as shown in figure 19, front leg strut 2 is by forward and backward tugboat system, and voluntarily via hole to front bridge pier, shrinks auxiliary
Supporting leg 3 supports front leg strut 2.
8th step as shown in figure 20, second of the Bridge Erector auxiliary leg 3 that moves ahead in place and turn down, via hole completion, Bridge Erector
In state to be set a roof beam in place.
Claims (8)
1. a kind of Bridge Erector, including girder (1), the front leg strut (2) successively combined from front to back with girder (1), auxiliary leg
(3) and rear support leg (4), and be mounted on girder (1) preceding trolley (5), rear trolley (6), lifting mechanism (7),
Hydraulic system (8) and electrical system (9), the preceding hoisting overhead travelling crane (5), rear hoisting overhead travelling crane (6) are mounted on girder (1) upper inner
On track, it is characterised in that: girder (1) lower part is equipped with track along longitudinal direction, and front leg strut (2) upper end is equipped with train out of shape, walks
Shape train and track form longitudinal roll and cooperate；It is hinged in the middle part of auxiliary leg (3) upper end and girder (1), auxiliary leg (3)
Turnover mechanism is equipped between girder (1)；The rear support leg (4) is enclosed type leg structure, and top is fixedly connected with girder (1)；
The lifting mechanism (7) and preceding hoisting overhead travelling crane (5), rear hoisting overhead travelling crane (6) pass through wirerope (5c) and form hoisting system of setting a roof beam in place.
2. a kind of Bridge Erector according to claim 1, it is characterised in that: the auxiliary leg (3), which includes two, to stretch
The column (3a) of contracting, upper pillar stand, lower pillar stand and support cylinder (3d) of each column (3a) with are constituted, support cylinder
(3d) is connected between upper pillar stand and lower pillar stand；Upper pillar stand upper end is hinged by pin shaft (3b) and girder (1)；Turnover mechanism includes
Upper overturning oil cylinder (3c) and lower overturning oil cylinder (3e), upper overturning oil cylinder (3c) are connected between upper pillar stand upper end and girder (1), under
Overturning oil cylinder (3e) is connected to lower pillar stand lower end and adjusts between support (3f)；It adjusts support lower part (3f) and flexible oil is installed
Cylinder.
3. a kind of Bridge Erector according to claim 1 or 2, it is characterised in that: the rear support leg (4) includes by top
Two rear support leg upper beams (4b) that saddle beam (4a), inner crest face are connect with the both ends saddle beam (4a) respectively, respectively with two
Two rear support leg curved beams (4c) of rear support leg upper beam (4b) outside bottom surface connection are connected between two rear support leg curved beams (4c)
Rear support leg lower beam (4d) constitute the O-shaped leg structure of closing；The both ends bottom rear support leg lower beam (4d) is respectively equipped with props up with after
Leg mechanism out of shape (4f), rear support leg mechanism out of shape (4f) are equipped with hydraulic force equalization mechanism (4e)；Two rear support leg upper beams (4b) are outside
Vertical overturning oil cylinder (4h) is equipped between side and left and right rear support leg curved beam 4c；It is on the outside of left and right rear support leg upper beam (4b) and main
Beam is equipped with lateral overturning oil cylinder between (1)；Connected between two rear support leg upper beam (4b) medial surfaces and girder (1) by bolt
It connects.
4. a kind of Bridge Erector according to claim 1 or 2, it is characterised in that: the preceding hoisting overhead travelling crane (5) and rear lifting
Overhead traveling crane (6) is separately mounted to the front-rear position of girder (1)；It all include the sprocket wheel vertical shift system being mounted on (1) two siding track of girder
It unites (5g), is movably arranged on the low level heavy type shift unit (5a) of the bottom vehicle frame (5b), be fixedly mounted on vehicle frame (5b) inside
Raising train (5d), the suspender being connect through wirerope (5c) with raising train (5d) (5 h)；Girder (1) front end is equipped with support frame,
The support frame and preceding hoisting overhead travelling crane (5), rear hoisting overhead travelling crane (6) and lifting mechanism (7) form at 3 points by wirerope (5c) and lift by crane,
4 balance systems.
5. a kind of Bridge Erector according to claim 4, it is characterised in that: the low level heavy type shift unit (5a) and vehicle
Frame (5b) is connected by vertical pin shaft (5e)；The low level heavy type shift unit top (5a) is equipped with sliding bearing (5f).
6. a kind of Bridge Erector according to claim 1 or 2, it is characterised in that: the girder (1) is variable cross-section box type
Beam, including the parallel box beam in two longitudinal directions, there are two horizontal connection beams for connection between two box beams；Adjusting support (3f) is L
Type.
7. a kind of using a kind of bridge erection method of Bridge Erector described in claim 1, it is characterised in that the following steps are included:
Front leg strut (2) is supported on front bridge pier pier top, adjusts the verticality of front leg strut (2), making train out of shape is sliding
Friction；Auxiliary leg (3) is voluntarily overturn to 90 ° and is fixed in the middle part of girder (1)；Bridge Erector preparation is set a roof beam in place；
It is in place that beam car transports beam；Lifting beam piece simultaneously will carry beam trolley on the back and drive into girder (1) bottom, carry beam trolley on the back and beam piece moves forward, preceding
Trolley (5) takes beam, and dilatory feeding beam synchronous with beam trolley is carried after beam car on the back；
It is carried on the back after beam car below beam trolley moving beam piece to rear trolley (6), rear trolley (6) passes through under suspender (5e)
Side takes beam；
Beam car returns to Liang Chang and fills beam；Lifting mechanism (7) are controlled by electrical system (9), make preceding trolley (5) He Houqi
Weight trolley (6) synchronizing moving controls forward and backward trolley (6,7) and completes to fall Liang Zuoye to position of setting a roof beam in place；
Rear support leg (4) mechanism out of shape (4f) is fallen on the track (4g) of bridge floor laying, starts auxiliary leg (3) turnover mechanism, to
Lower 90 ° of overturning sets auxiliary leg (3) overturning in the middle part of girder (1) above bridge floor, makes auxiliary leg (3) from frame by adjusting
If beam face have spacing；
Rear support leg (4) is driven by wheel group out of shape, moves forward complete machine；When rear support leg (4) is moved to front leg strut (2) rear
When certain distance, auxiliary leg (3) support makes front leg strut (2) come to nothing；
By train out of shape, voluntarily via hole shrinks auxiliary leg (3) to front bridge pier, props up front leg strut (2) before front leg strut (2)
Support；
Bridge Erector moves ahead in place for the second time and turns down auxiliary leg (3), and via hole is completed, and Bridge Erector is in state to be set a roof beam in place.
8. a kind of bridge erection method according to claim 7, it is characterised in that: describedIn step, first start auxiliary
The lower overturning oil cylinder (3e) for helping supporting leg (3) makes to adjust support (3f) overturning, restarts upper overturning oil cylinder (3c), make auxiliary leg
(3) overturning is set above bridge floor in the middle part of girder (1), by adjusting support cylinder (3d) and adjusting support (3f), makes auxiliary leg
(3) with a certain distance from the beam face from erection has.
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|---|---|---|---|
| CN201810740837.8A CN109695204B (en) | 2018-07-08 | 2018-07-08 | Bridge girder erection machine and bridge girder erection method |
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|---|---|---|---|
| CN201810740837.8A CN109695204B (en) | 2018-07-08 | 2018-07-08 | Bridge girder erection machine and bridge girder erection method |
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| CN109695204A true CN109695204A (en) | 2019-04-30 |
| CN109695204B CN109695204B (en) | 2024-06-04 |
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| CN113756210A (en) * | 2021-10-19 | 2021-12-07 | 中交一公局第一工程有限公司 | Device and method for self-transporting and mounting top box girder across adjacent bent cap |
| CN114164766A (en) * | 2021-12-24 | 2022-03-11 | 中交第一航务工程局有限公司 | Method for erecting front supporting leg of bridge erecting machine |
| CN114319111A (en) * | 2021-12-07 | 2022-04-12 | 保利长大工程有限公司 | Bridge girder erection machine, front supporting leg reversing method and hole passing method of bridge girder erection machine |
| CN114481835A (en) * | 2021-12-13 | 2022-05-13 | 中铁第五勘察设计院集团有限公司 | Stepless span changing device and method for suspension point of bridge girder erection machine |
| CN114837084A (en) * | 2022-04-11 | 2022-08-02 | 中铁第五勘察设计院集团有限公司 | Beam transporting vehicle and bridging system |
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| CN113756210A (en) * | 2021-10-19 | 2021-12-07 | 中交一公局第一工程有限公司 | Device and method for self-transporting and mounting top box girder across adjacent bent cap |
| CN114319111A (en) * | 2021-12-07 | 2022-04-12 | 保利长大工程有限公司 | Bridge girder erection machine, front supporting leg reversing method and hole passing method of bridge girder erection machine |
| CN114481835A (en) * | 2021-12-13 | 2022-05-13 | 中铁第五勘察设计院集团有限公司 | Stepless span changing device and method for suspension point of bridge girder erection machine |
| CN114481835B (en) * | 2021-12-13 | 2023-04-07 | 中铁第五勘察设计院集团有限公司 | Stepless span changing device and method for suspension point of bridge girder erection machine |
| CN114164766A (en) * | 2021-12-24 | 2022-03-11 | 中交第一航务工程局有限公司 | Method for erecting front supporting leg of bridge erecting machine |
| CN114164766B (en) * | 2021-12-24 | 2024-10-25 | 中交第一航务工程局有限公司 | Method for erecting front landing leg of bridge girder erection machine |
| CN114837084A (en) * | 2022-04-11 | 2022-08-02 | 中铁第五勘察设计院集团有限公司 | Beam transporting vehicle and bridging system |
| CN114837084B (en) * | 2022-04-11 | 2023-09-05 | 中铁第五勘察设计院集团有限公司 | Beam transporting vehicle and bridging system |
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