CN106400701A - Single-girder low-level balanced cantilever assembling bridge erection machine - Google Patents
Single-girder low-level balanced cantilever assembling bridge erection machine Download PDFInfo
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- CN106400701A CN106400701A CN201610721272.XA CN201610721272A CN106400701A CN 106400701 A CN106400701 A CN 106400701A CN 201610721272 A CN201610721272 A CN 201610721272A CN 106400701 A CN106400701 A CN 106400701A
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- girder
- supporting leg
- main supporting
- crane
- overhead crane
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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
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a single-girder low-level balanced cantilever assembling bridge erection machine, belongs to the technical field of prefabricated segmental balanced cantilever assembling bridge erection, and mainly aims to solve the problems of large dead weight and excessive height of a conventional ridge erection machine. The single-girder low-level balanced cantilever assembling bridge erection machine is mainly characterized by comprises a girder, a front lifting overhead crane, a rear lifting overhead crane, a front main supporting leg, a middle main supporting leg, a rear main supporting leg, a segmental suspension beam and a tension platform, wherein the girder adopts a single rectangular frame structure, an overhead crane track is arranged on the girder, and a stainless steel track is arranged at the lower chord of the girder; the structure of the front lifting overhead crane is the same as that of the rear lifting overhead crane, and the front lifting overhead crane and the rear lifting overhead crane separately comprise two independent winch systems and an overhead crane cross beam; and the overhead crane cross beams straddle on the overhead crane track of the girder, and the upper parts of the two independent winch systems are fixed to the two ends of the overhead crane cross beam. The single-girder low-level balanced cantilever assembling bridge erection machine disclosed by the invention has the characteristics of being simple in structure, easy to operate and simple and convenient in construction process, and is mainly used in a condition that in a permanent structural design, the acting force of the bridge erection machine on a permanent structure is required to be small, and the bridge erection machine can pass a limit height.
Description
Technical field
The invention belongs to prefabricated subsection balanced cantilever assembly bridge formation technical field.Specifically related to a kind of safe, light-duty, simple
Single, practical new single girder low level balanced cantilever assembly Bridge Erector.
Background technology
Precast segment assembling technique is obtained in Urban Bridge construction at home and abroad with its good economic and social benefit
Commonly used.Balanced cantilever assembly is as in a kind of more bridge construction for long across footpath of Precast Concrete Segmental Bridges technology.
Balanced cantilever typically has truck crane to set a roof beam in place for being assembled in construction above, erection crane is set a roof beam in place, girder erection by bridging machine.Wherein bridge formation frame
Beam requires the features such as little, construction cost is less extensively to be adopted by unit in charge of construction with its efficiency of construction height, job safety, construction area
With being modal balanced cantilever assembling and construction method.
Certain project carries out prefabricated subsection balanced cantilever assembling construction it is desirable to Bridge Erector props up to bent cap pier stud using Bridge Erector
Counter-force must not exceed 2500kN, and Bridge Erector needs the door type structure by limit for height 5.7m.Pier stud bent cap both sides first to sections and
Pier stud bent cap uses wet seam to connect., all using double main beam structures, its deadweight is larger, no for balanced cantilever Bridge Erector domestic at present
Construction support reaction can be met require；And in order to meet double girder bridge erecting machine construction needs, its height of landing leg is larger to be limited it is impossible to meet
High demand.
Content of the invention
The present invention is for above project demand, devises a kind of single girder light-duty low level balanced cantilever assembly Bridge Erector.
, using single main beam structure and optimization design, construction weight is lighter for this Bridge Erector.It is relatively low that leg structure designs, and carries rising of sections
Weight overhead traveling crane adopts straddle-type to design, and reduce further Bridge Erector overall height it is ensured that the door type structure by limit for height for the Bridge Erector.
The technical solution of the present invention is：A kind of single girder low level balanced cantilever assembly Bridge Erector, including girder, front
Weight overhead traveling crane, rear hoisting overhead travelling crane, front main supporting leg, middle main supporting leg, rear main supporting leg, sections hanging beam and tensioning platform it is characterised in that：Institute
The girder stated is single rectangular frame structure, is the topmost support section of Bridge Erector, girder top is provided with overhead crane orbit, girder
Lower edge is provided with stainless steel track, promotes girder via for main supporting leg；Described front hoisting overhead travelling crane, rear hoisting overhead travelling crane structure phase
Same, all include two independent hoist systems and overhead traveling crane across beam, overhead traveling crane, is somebody's turn to do across girder span seat on the overhead crane orbit of girder
The top of two independent hoist systems is fixed on the two ends across beam for the overhead traveling crane.
Front hoisting overhead travelling crane described in the technical solution of the present invention, rear hoisting overhead travelling crane are respectively provided with two independent hoist engines
System, the hoist engine of the independent hoist system of one of two hoist systems is double wrap rope structure.
Front hoisting overhead travelling crane described in the technical solution of the present invention, the hoist engine of the hoist system of rear hoisting overhead travelling crane
It is provided with the transverse-moving mechanism for the adjustment of sections horizontal direction；Front hoisting overhead travelling crane, rear hoisting overhead travelling crane are driven by sprocket wheel link chain mechanism
Movable on girder to realize.Effectively raise the effect of Bridge Erector precast segmental beam construction using double Overhead travelling crane systems
Rate.
Girder described in the technical solution of the present invention by structure identical module splicing form, each module by
Cuboid framework and be fixed on truss on the supermedial girder sections of each hack lever of cuboid framework, truss composition under girder sections；
Setting workbench inside girder, operates Bridge Erector for safety of workers；Girder side is provided with for showing crane's major girder
The label of displacement, is easy to observe Bridge Erector via distance.
Front main supporting leg described in the technical solution of the present invention, middle main supporting leg are identical with the structure of main supporting leg afterwards, its
Main Function is to support crane's major girder and promote Bridge Erector via；Front main supporting leg, middle main supporting leg and afterwards main supporting leg by comprising
The via support of via oil cylinder and clamping cylinder, equalizer, telescopic column, four telescopic oil cylinders, rotating beam, transversely-moving rack, traversing
Slide rail forms；Girder is supported on the slide plate of equalizer by stainless steel track, and slide plate is the slide plate of special nylon material it is ensured that sliding
Plate is less with stainless steel track friction；Telescopic column is connected between equalizer and rotating beam, for adjusting the height of main supporting leg,
Guarantee the height of landing leg demand that main supporting leg meets Bridge Erector via or sets up longitudinal gradient；Four telescopic oil cylinders are symmetrically fixed on equilibrium
Beam, using the principles of 3 points of 4 points of stress balance, for jack-up or decline main depth of beam and other need into line height
The situation of adjustment；Rotating beam is arranged on the turntable of transversely-moving rack, and the setting of this rotating beam can make the upper and lower two parts of main supporting leg
Rotate against so that Bridge Erector can set up camber beam；Transversely-moving rack is loaded on cross sliding rail by sliding beam, sliding beam
On be provided with sliding oil cylinder, make entirely main supporting leg can traversing so that guarantee Bridge Erector can with cross-line set up multiple line.
Tensioning platform described in the technical solution of the present invention is connected using chain block with prefabricated subsection；Tensioning is put down
The end position of platform is provided with alignment pin that can be fixing with prefabricated subsection.Tensioning platform is for carrying out sections after segment lifting
The workbench of tensioning, is installed on ground, is lifted into high-altitude together with sections.Chain block and alignment pin can prevent
Tensioning platform falls down from prefabricated subsection, so that it is guaranteed that safety.
According to construction process, it is provided with wet seam between sections and bent cap at first pair, sections suspension bracket is used exclusively for carrying
Hang first pair of sections to construct in order to wet seam.It is provided with beam sections adjusting apparatus, can be horizontal, longitudinally and highly square
To adjustment beam sections, beam sections are made to reach design attitude.
The present invention has the characteristics that structure is simple, processing ease and construction process are easy.Present invention is mainly used for permanent tie
Structure design requirement Bridge Erector is less to the active force of permanent structure, and must be by the situation of limit for height.
Brief description
Fig. 1 is the structure total figure schematic diagram of the present invention.
Fig. 2 is present configuration sectional schematic diagram.
Fig. 3 is girder sections schematic diagram of the present invention.
Fig. 4 is girder sections side view of the present invention.
Fig. 5 is the structural representation of main supporting leg in the present invention.
Fig. 6 is that the present invention sets a roof beam in place schematic diagram one.
Fig. 7 is that the present invention sets a roof beam in place schematic diagram two.
Fig. 8 is via schematic diagram one of the present invention.
Fig. 9 is via schematic diagram two of the present invention.
Figure 10 is via schematic diagram three of the present invention.
Figure 11 is via schematic diagram four of the present invention.
In figure：Main after main supporting leg in main supporting leg before hoisting overhead travelling crane after hoisting overhead travelling crane before 1- girder, 2-, 3-, 4-, 5-, 6-
Truss, 11- workbench, 12- mark under truss on leg, 7- sections hanging beam, 8- tensioning platform, 9- girder sections, 10- girder sections
Board, 13- via support, 14- equalizer, 15- telescopic oil cylinder, 16- telescopic column, 17- rotating beam, 18- transversely-moving rack, 19- are traversing
Slide rail.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the part composition of the present invention：Girder 1, front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3, front main supporting leg 4, middle master
Supporting leg 5, rear main supporting leg 6, sections suspension bracket 7 and tensioning platform 8.
As shown in Fig. 2 front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 structure are identical, all include two independent hoist systems
With overhead traveling crane across beam, using the design principle of four-point hoisting three-point balancing.Overhead traveling crane is across girder span seat in the overhead crane orbit of girder 1
On, the top of this two independent hoist systems is fixed on the two ends across beam for the overhead traveling crane.Front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3
Using straddle-type structure, hoist engine arrangement adopts sinkage type structure, reduce further the height of Bridge Erector, Bridge Erector is totally high
Degree meets the requirement by door type structure limit for height.In front hoisting overhead travelling crane 2,3 two independent hoist systems of rear hoisting overhead travelling crane
The hoist engine of one independent hoist system is double wrap rope structure.Front hoisting overhead travelling crane 2, the hoist system of rear hoisting overhead travelling crane 3
Hoist engine be provided with for sections horizontal direction adjustment transverse-moving mechanism；Front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 pass through sprocket chain
Move on the driving of bar and girder 1, so that it is moved on girder 1 using double Overhead travelling crane systems, effectively provide Bridge Erector prefabricated
The efficiency of beam sections construction.
Fig. 3, Fig. 4 show the typical structure of crane's major girder 1.Girder 1 is single rectangular frame structure, is that Bridge Erector is the most main
The support section wanted, girder 1 top is provided with overhead crane orbit, and girder 1 lower edge is provided with stainless steel track, promotes for main supporting leg
Girder via.Girder 1 overall length 100m, is made up of the splicing of nine structure identical modules, each module by cuboid framework and
It is fixed on truss 9 on the supermedial girder sections of each hack lever of cuboid framework, truss 10 forms under girder sections, be superimposed
Form complete module.Upper and lower frames, chord member, vertically and horizontally bar, hound and diagonal strut bar all weld together.Top and
Under(-)chassis is stitched together, and in node location vertical rod, hound and the support of diagonal strut bar connect.Each connects superposition
Part is fixed with four bolts and two 45mm bearing pins.The corresponding splicing of the chord member of the adjacent block of girder.Connecting portion uses four
Individual 52 special bolts and 40 bearing pins are fixed.The internal setting workbench 11 of girder 1, operates for safety of workers and builds bridge
Machine.Girder 1 side is provided with the label 12 for showing crane's major girder displacement, is easy to observe Bridge Erector via distance.
Further illustrate the design feature of main supporting leg in conjunction with Fig. 5.The knot of front main supporting leg 4, middle main supporting leg 5 and main supporting leg 6 afterwards
Structure is identical, and its Main Function is to support crane's major girder and promote Bridge Erector via.Middle main supporting leg 5 is by via support 13, equilibrium
Beam 14, telescopic column 16, four telescopic oil cylinders 15, rotating beam 17, transversely-moving rack 18, cross sliding rails 19 form.Via support 13 wraps
Containing via oil cylinder and clamping cylinder, the operation principle of via support 13 is as follows：Girder lower boom is clamped by clamping cylinder
Lower flange, via oil cylinder stretches out and girder can be promoted to move ahead；Treat that via oil cylinder stroke puts in place after maximum position, clamping cylinder pine
Open, via oil cylinder is recovered to the minimum position of stroke, clamping cylinder clamps again, so move in circles and can achieve the company of girder
Continue and move ahead.Girder 1 is supported on the slide plate of equalizer 14 by stainless steel track, slide plate be special nylon material slide plate it is ensured that
Slide plate is less with stainless steel track friction.Equalizer 14 is used for equalizing the stress of main supporting leg, and slide plate can reduce girder and main
Coefficient of friction between leg.Four telescopic oil cylinders 15 are symmetrically fixed on equalizer 14, using the principle of 3 points of balances of 4 points of stress,
Height and other for jack-up or decline girder 1 need to carry out the situation of Height Adjustment.Telescopic column 16 is connected to all
Between weighing apparatus beam 14 and rotating beam 17, the cushion block that has on telescopic column 16 is used for fixing the height of main supporting leg after telescopic oil cylinder is adjusted in place
Degree is it is ensured that main supporting leg meets Bridge Erector via or the height of landing leg demand of erection longitudinal gradient.Rotating beam 17 is arranged on transversely-moving rack 18
On turntable, rotating beam 17 can be promoted to occur between transversely-moving rack 18 now to rotation by oil cylinder, thus realizing rotation with frame
If camber beam.Transversely-moving rack 18 is loaded on cross sliding rail 19 by sliding beam, and sliding beam is provided with sliding oil cylinder, makes entirely to lead and props up
Leg can traversing so that guarantee Bridge Erector can with cross-line set up multiple line.
Tensioning platform 8 is connected by chain block with prefabricated subsection；The end position of tensioning platform 8 is provided with can be with prefabricated section
The fixing alignment pin of section.Tensioning platform 8 is the workbench for carrying out sections tensioning after segment lifting, in prefabricated subsection
It is to install also on ground, be lifted into high-altitude together with sections.Chain block and alignment pin can prevent tensioning platform 8 from prefabricated
Fall down on sections.
Fig. 6 to Fig. 7 is the schematic diagram of setting a roof beam in place of Bridge Erector, is described as follows.
After Fig. 6 display Bridge Erector is in place, front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 cooperation sections hanging beam complete first pair of sections
After lifting, the construction first wet seam between sections and bent cap is gone forward side by side enforcement tensioning platform 8 carries out tensioning.Treat that first is right
After sections completes, front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 move a segment width to P+1 pier stud and P-1 pier stud respectively
Distance, and lift second to sections.
It is that Bridge Erector constructs the 3rd to the 6th pair of sections using front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 successively that Fig. 7 shows.
Bridge Erector construction finish previous across beam sections after, start via to next across erection, its Specific construction step
As shown in Figs. 8 to 11, it is described as follows.
Shown according to Fig. 8, front first hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 run to and join above P+1 pier stud in front of Bridge Erector
Weight.
As shown in figure 9, under the promotion of middle main supporting leg 5 via oil cylinder, girder 1 moves forward and reaches until the center of girder
Pier stud P+1 and the center of pier stud P, the distance of concrete girder movement can be determined by label 12 on girder 1.
As shown in Figure 10, after shown in Fig. 9, step completes, front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 move backward to pier
Counterweight above post P.Pass through the height of main supporting leg during the telescopic oil cylinder 15 of main supporting leg and telescopic column 16 in operation reduce afterwards, from
And so that crane's major girder 1 rear end is declined, front end tilts.
As shown in figure 11, in advance the main supporting leg on pier stud P-1 is had bad luck on pier stud P+2 using crane and transport vehicle.Continue
Via support 13 on main supporting leg 5 in continuous driving makes crane's major girder 1 continue to move ahead until crane's major girder 1 arrival specific bit
Put.In adjustment bridge formation owner, the height of supporting leg 5 makes crane's major girder 1 level.Front hoisting overhead travelling crane 2, rear hoisting overhead travelling crane 3 run to P+
1 pier stud, so far Bridge Erector via process complete to start to set up new one across prefabricated subsection.
Above is that the present invention has been carried out with exemplary explanation, and the specific implementation of the present invention is not limited thereto.
The insubstantial modifications that any design using the present invention and technical scheme are carried out, all within protection scope of the present invention.
Claims (6)
1. a kind of single girder low level balanced cantilever assembly Bridge Erector, including girder（1）, front hoisting overhead travelling crane（2）, rear hoisting overhead travelling crane
（3）, front main supporting leg（4）, middle main supporting leg（5）, rear main supporting leg（6）, sections hanging beam（7）With tensioning platform（8）It is characterised in that：
Described girder（1）For single rectangular frame structure, it is the topmost support section of Bridge Erector, girder（1）Top is provided with overhead traveling crane
Track, girder（1）Lower edge is provided with stainless steel track；Described front hoisting overhead travelling crane（2）, rear hoisting overhead travelling crane（3）Structure is identical, all
Including two independent hoist systems and overhead traveling crane across beam, overhead traveling crane is across girder span seat in girder（1）Overhead crane orbit on, this two
The top of individual independent hoist system is fixed on the two ends across beam for the overhead traveling crane.
2. a kind of single girder low level balanced cantilever assembly Bridge Erector according to claim 1 it is characterised in that：Before described
Hoisting overhead travelling crane（2）, rear hoisting overhead travelling crane（3）It is respectively provided with two independent hoist systems, one of two independent hoist systems
The hoist engine of independent hoist system is double wrap rope structure.
3. a kind of single girder low level balanced cantilever assembly Bridge Erector according to claim 1 and 2 it is characterised in that：Described
Front hoisting overhead travelling crane（2）, rear hoisting overhead travelling crane（3）Hoist system hoist engine be provided with for sections horizontal direction adjustment horizontal stroke
Telephone-moving structure.
4. a kind of single girder low level balanced cantilever assembly Bridge Erector according to claim 1 and 2 it is characterised in that：Described
Girder（1）It is made up of the splicing of structure identical module, by cuboid framework and to be fixed on cuboid framework each for each module
Truss on hack lever supermedial girder sections（9）, truss under girder sections（10）Composition；Girder（1）Internal setting workbench
（11）；Girder（1）Side is provided with the label for showing crane's major girder displacement（12）.
5. a kind of single girder low level balanced cantilever assembly Bridge Erector according to claim 1 and 2 it is characterised in that：Described
Front main supporting leg（4）, middle main supporting leg（5）With rear main supporting leg（6）Structure identical；Front main supporting leg（4）, middle main supporting leg（5）With rear
Main supporting leg（6）By the via support comprising via oil cylinder and clamping cylinder（13）, equalizer（14）, telescopic column（16）, four
Individual telescopic oil cylinder（15）, rotating beam（17）, transversely-moving rack（18）, cross sliding rail（19）Composition；Girder（1）Propped up by stainless steel track
Support is in equalizer（14）Slide plate on, slide plate is the slide plate of special nylon material；Telescopic column（16）It is connected to equalizer（14）With
Rotating beam（17）Between；Four telescopic oil cylinders（15）Symmetrically it is fixed on equalizer（14）；Rotating beam（17）It is arranged on transversely-moving rack
（18）Turntable on；Transversely-moving rack（18）Cross sliding rail is loaded on by sliding beam（19）On, sliding beam is provided with sliding oil cylinder.
6. a kind of single girder low level balanced cantilever assembly Bridge Erector according to claim 1 and 2 it is characterised in that：Described
Tensioning platform（8）Being respectively equipped with can be with girder（1）The chain block connecting and the chain block being connected with prefabricated subsection；?
Even up platform（8）End position be provided with alignment pin that can be fixing with prefabricated subsection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721272.XA CN106400701B (en) | 2016-08-25 | 2016-08-25 | A kind of list girder low level balanced cantilever assembly Bridge Erector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721272.XA CN106400701B (en) | 2016-08-25 | 2016-08-25 | A kind of list girder low level balanced cantilever assembly Bridge Erector |
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| Publication Number | Publication Date |
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| CN106400701A true CN106400701A (en) | 2017-02-15 |
| CN106400701B CN106400701B (en) | 2018-06-29 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677742A (en) * | 2018-08-02 | 2018-10-19 | 中铁工程机械研究设计院有限公司 | The moving cantilever type Bridge Erector of full precast pier, cushion cap and beam body prefabricated construction |
| CN109024308A (en) * | 2018-06-21 | 2018-12-18 | 上海建工集团股份有限公司 | The dead load control device and method of Bridge Erector |
| CN109183618A (en) * | 2017-06-30 | 2019-01-11 | 中交第二航务工程局有限公司 | A kind of Bridge Erector for prefabricated assembled bridge rapid construction |
| CN109208478A (en) * | 2017-06-30 | 2019-01-15 | 中交第二航务工程局有限公司 | A kind of prefabricated assembled bridge integration rapid constructing method |
| CN109610346A (en) * | 2018-12-18 | 2019-04-12 | 腾达建设集团股份有限公司 | A kind of cantilever beam method of adjustment |
| CN109750609A (en) * | 2019-01-04 | 2019-05-14 | 腾达建设集团股份有限公司 | The whole flat turn device of Bridge Erector and the construction method of Bridge Erector entirety flat turn |
| CN110616637A (en) * | 2019-08-14 | 2019-12-27 | 中交二航局第二工程有限公司 | Overlength multifunctional integrated bridge girder erection machine and construction method for installing prefabricated bridge |
| CN111139742A (en) * | 2019-12-26 | 2020-05-12 | 中铁十七局集团第三工程有限公司 | Method for mounting and dismounting highway bridge girder erection machine |
| CN114045755A (en) * | 2021-11-23 | 2022-02-15 | 中铁七局集团有限公司 | Auxiliary trolley machine construction method for small clearance frame beam construction |
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| CN109208478B (en) * | 2017-06-30 | 2021-03-19 | 中交第二航务工程局有限公司 | Integrated rapid construction method for prefabricated bridge |
| CN109183618A (en) * | 2017-06-30 | 2019-01-11 | 中交第二航务工程局有限公司 | A kind of Bridge Erector for prefabricated assembled bridge rapid construction |
| CN109208478A (en) * | 2017-06-30 | 2019-01-15 | 中交第二航务工程局有限公司 | A kind of prefabricated assembled bridge integration rapid constructing method |
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| CN108677742A (en) * | 2018-08-02 | 2018-10-19 | 中铁工程机械研究设计院有限公司 | The moving cantilever type Bridge Erector of full precast pier, cushion cap and beam body prefabricated construction |
| CN108677742B (en) * | 2018-08-02 | 2024-03-08 | 中铁工程机械研究设计院有限公司 | Movable cantilever bridge girder erection machine for full-prefabricated bridge pier, bearing platform and girder body assembled construction |
| CN109610346A (en) * | 2018-12-18 | 2019-04-12 | 腾达建设集团股份有限公司 | A kind of cantilever beam method of adjustment |
| CN109750609A (en) * | 2019-01-04 | 2019-05-14 | 腾达建设集团股份有限公司 | The whole flat turn device of Bridge Erector and the construction method of Bridge Erector entirety flat turn |
| CN110616637B (en) * | 2019-08-14 | 2021-06-15 | 中交二航局第二工程有限公司 | Overlength multifunctional integrated bridge girder erection machine and construction method for installing prefabricated bridge |
| CN110616637A (en) * | 2019-08-14 | 2019-12-27 | 中交二航局第二工程有限公司 | Overlength multifunctional integrated bridge girder erection machine and construction method for installing prefabricated bridge |
| CN111139742A (en) * | 2019-12-26 | 2020-05-12 | 中铁十七局集团第三工程有限公司 | Method for mounting and dismounting highway bridge girder erection machine |
| CN111139742B (en) * | 2019-12-26 | 2022-03-29 | 中铁十七局集团第三工程有限公司 | Method for mounting and dismounting highway bridge girder erection machine |
| CN114045755A (en) * | 2021-11-23 | 2022-02-15 | 中铁七局集团有限公司 | Auxiliary trolley machine construction method for small clearance frame beam construction |
| CN114481844A (en) * | 2022-01-21 | 2022-05-13 | 中铁十一局集团有限公司 | Section-splicing bridge girder erection machine |
| CN114481844B (en) * | 2022-01-21 | 2024-04-30 | 中铁十一局集团有限公司 | Bridge girder erection machine is pieced together to festival |
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|---|---|
| CN106400701B (en) | 2018-06-29 |
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Effective date of registration: 20220124 Address after: 430061 No.277 Zhongshan Road, Wuchang District, Wuhan City, Hubei Province Patentee after: CHINA RAILWAY 11 BUREAU GROUP Co.,Ltd. Patentee after: THE 6TH ENGINEERING CO.,LTD. OF CHINA RAILWAY 11 BUREAU Group Patentee after: CHINA RAILWAY 11 BUREAU HANJIANG HEAVY INDUSTRY CO.,LTD. Address before: 430062 China Railway 11th Bureau building, No. 277, Zhongshan Road, Wuchang District, Wuhan City, Hubei Province Patentee before: CHINA RAILWAY 11 BUREAU GROUP Co.,Ltd. Patentee before: China Railway 11th Bureau Group No.6 Engineering Co., Ltd |