CN107386128A - Double-T shaped beam bridge changes beam construction system - Google Patents
Double-T shaped beam bridge changes beam construction system Download PDFInfo
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- CN107386128A CN107386128A CN201710835375.3A CN201710835375A CN107386128A CN 107386128 A CN107386128 A CN 107386128A CN 201710835375 A CN201710835375 A CN 201710835375A CN 107386128 A CN107386128 A CN 107386128A
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 241001669679 Eleotris Species 0.000 claims description 19
- 230000032258 transport Effects 0.000 claims description 14
- 230000008859 change Effects 0.000 abstract description 24
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- 238000010586 diagram Methods 0.000 description 7
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- 230000008602 contraction Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to double-T shaped beam bridge to change frame equipment technical field, there is provided a kind of double-T shaped beam bridge changes beam construction system.The system include being arranged on change beam opening position change erecting machine, changing erecting machine includes girder, girder is provided with the two hanging beam dollies that can be moved along its length, girder is set up on bridge floor by frong guide column and BB1, frong guide column and BB1 are Collapsible structure, make to change beam process is not influenceed by natural conditions such as wind-force, will not be made to fall beam to cause a deviation, be improved and change beam efficiency；The both sides for changing erecting machine are respectively provided with the fortune beam special train, fortune beam dolly and upside-down mounting gantry for applying mechanically the new beam of transport and old beam of plugging into.The system can effectively reduce the lifting altitude of equipment in work progress, realize smoothly completed under the operating mode for having track clearance requirement T-shaped beam change beam operation, it can ensure on the premise of not causing any unnecessary influence on former line facility, that completes whole hole simple supported T-beam safe efficiently in " skylight point " changes frame construction.
Description
Technical field
The present invention relates to double-T shaped beam bridge to change frame equipment technical field, and in particular to a kind of double-T shaped beam bridge changes beam construction system
System.
Background technology
The old beam serious plant disease of China's current portions railroad bridge is directed to, the present situation of replacing is needed badly, in conventional existing railway
Circuit bridge is changed in frame construction, it is necessary to be closed for a long time to circuit, and limited by building interim sidewalk or suspension bridge for vehicle
Speed is current, then recycles Bridge Erector or the mode of support is set up under bridge and complete hole-specifically to change frame construction working, cost is high, work
Phase is grown, and workload is big, and the normal operation of existing line is had a great influence.
The content of the invention
The purpose of the present invention is to propose to it is a kind of can be safe efficient complete whole hole simple supported T-beam change frame construction change
Beam construction system.
To achieve the above object, beam construction system is changed the invention provides a kind of double-T shaped beam bridge, including：
The erecting machine that changes for changing beam opening position is arranged on, the erecting machine that changes includes girder, and the girder is provided with can be along it
Two hanging beam dollies of length direction motion, the girder are set up on bridge floor by frong guide column and BB1, the frong guide column
It is Collapsible structure with BB1；
Be arranged on change erecting machine side be used to transport the first fortune beam special train for treating the new beam of frame, two first for feeding beam
Transport beam dolly and for that will treat that the new beam of frame hangs onto two described first two transported on beam dollies from the described first fortune beam special train
First upside-down mounting gantry；And
Be arranged on change erecting machine opposite side two second of the old beam fortune beam dollies that are used to plug into, for by old beam transport from
The second of field transports beam special train and for old beam to be hung onto on the second fortune beam special train from two the second fortune beam dollies
Two second upside-down mounting gantry.
Preferably, the both lateral sides of the girder have the edge of a wing；The hanging beam dolly includes moving cart and across beam, institute
The top for stating moving cart is provided with the driving wheel coordinated with the top side on the edge of a wing of the girder both sides, and the driving wheel is used to drive
Length direction of the moving cart along the girder moves；The bottom side of the hanging beam dolly is provided with mounting groove, described across beam
It is described to be provided with elevator across beam relative to the girder transverse shifting in the mounting groove and by drive mechanism
Machine.
Preferably, the frong guide column and BB1 are telescopic oil cylinder.
Preferably, the bottom of the frong guide column and BB1 is equipped with cushion block.
Preferably, at least two roof beams structure, the roof beam structure bag are equipped with the first fortune beam special train and the second fortune beam special train
Base and two diagonal braces being arranged on base are included, two diagonal braces are set in splayed, for inserting the longeron of T-shaped beam
Wherein, the base is supported on the bottom of T-shaped beam, and two diagonal braces are against on the web of T-shaped beam both sides respectively.
Preferably, described first upside-down mounting gantry and second upside-down mounting gantry are Collapsible structure, the first fortune beam special train
Two gantry crane supports are removably provided with the second fortune beam special train, the gantry crane support is for supporting first upside-down mounting
Gantry and second upside-down mounting gantry.
Preferably, two loop wheel machine supports are removably provided with the first fortune beam special train, the loop wheel machine support is used for
The lower section of hanging beam dolly is supported on when changing erecting machine and marching into the arena and withdraw from the arena.
Preferably, in addition to two rows of tracks and multiple loop wheel machine sleeper beams, multiple loop wheel machine sleeper beams, which are erected at, changes beam position two
On the T-shaped beam bridge of side, two tracks are respectively erected on multiple loop wheel machine sleeper beams of both sides to be changed of setting a roof beam in place.
Preferably, the both sides of the track are extended at the both ends of multiple loop wheel machine sleeper beams, described leading for supporting
Post, BB1, first upside-down mounting gantry and second upside-down mounting gantry.
Preferably, the first fortune beam special train and the second fortune beam special train include headstock and more piece flatcar, first fortune
The headstock of the headstock of beam special train and the described second fortune beam special train is to be detachably connected between setting, each flatcar.
From the foregoing, it will be observed that the system by liftable frong guide column and BB1, realizes the overall landing for changing erecting machine, then
Coordinate the motion of hanging beam dolly, realize the erection of new beam and the dismounting of old beam, by the overall landing of equipment, make to change beam process not
Influenceed by natural conditions such as wind-force, will not make to fall beam to cause a deviation, improved and change beam efficiency；Furthermore it is also possible to effectively reduce
The lifting altitude of equipment in work progress, realize smoothly completed under the operating mode for having track clearance requirement T-shaped beam change beam behaviour
Make, it is ensured that on the premise of not causing any unnecessary influence on former line facility, completed safe efficiently in " skylight point "
Whole hole simple supported T-beam changes frame construction.
Brief description of the drawings
Fig. 1 is a kind of front view for changing beam construction system of double-T shaped beam bridge of the embodiment of the present invention；
Fig. 2 is a kind of stereogram for changing beam construction system of double-T shaped beam bridge of the embodiment of the present invention；
Fig. 3 is the schematic diagram for changing erecting machine part of the embodiment of the present invention；
Fig. 4 is the state diagram changed when erecting machine lifts by crane of the embodiment of the present invention；
Fig. 5 is the state diagram changed when erecting machine hangs old beam of the embodiment of the present invention；
Fig. 6 is the state diagram changed when erecting machine hangs new beam of the embodiment of the present invention；
Fig. 7 is a kind of state diagram changed when beam construction system is marched into the arena of double-T shaped beam bridge of the embodiment of the present invention；
Fig. 8 is the enlarged drawing at A in Fig. 7；
Fig. 9 is the enlarged drawing at B in Fig. 7；
Figure 10 is the enlarged drawing at C in Fig. 7；
Figure 11 is the schematic diagram of the track and loop wheel machine sleeper beam at the first upside-down mounting gantry position of the embodiment of the present invention；
Figure 12 is the track for changing erecting machine opening position of the embodiment of the present invention and the schematic diagram of loop wheel machine sleeper beam.
Reference：
1st, the first fortune beam special train；2nd, first upside-down mounting gantry；3rd, the first fortune beam dolly；4th, erecting machine is changed；41st, frong guide column；42、
Girder；421st, the edge of a wing；43rd, BB1；44th, hanging beam dolly；441st, moving cart；442nd, across beam；443rd, lift rope；5th, frame is treated
New beam；6th, the second fortune beam dolly；7th, Jiu Liang；8th, second upside-down mounting gantry；9th, the second fortune beam special train；10th, flatcar；11st, roof beam structure；111、
Diagonal brace；112nd, base；12nd, gantry crane support；13rd, loop wheel machine support；14th, loop wheel machine sleeper beam；15th, track.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to shown in Fig. 1 to Fig. 3, a kind of double-T shaped beam bridge provided in an embodiment of the present invention changes beam construction system, including sets
Put and change erecting machine 4 change beam opening position, changing erecting machine 4 includes girder 42, and girder 42 is provided with and can moved along its length
Two hanging beam dollies 44, hanging beam dolly 44 is used to hanged treat the new beam 5 of frame and old beam 7；Girder 42 is led by frong guide column 41 with after
Post 43 is set up on bridge floor, and frong guide column 41 and BB1 43 are Collapsible structure, can specifically be used telescopic oil cylinder, thus be made
Girder 42 and two hanging beam dollies 44 can move up and down, and realized with this and treat rising and falling for the new beam 5 of frame and old beam 7；Set a roof beam in place changing
The side of machine 4, the system also include being used to transport the first fortune beam special train 1 for treating the new beam 5 of frame, the two first fortune beams for feeding beam
Dolly 3 and two the first upside-down mountings on two first fortune beam dollies 3 are hung onto for the new beam 5 of frame will to be treated from the first fortune beam special train 1
Gantry 2；Changing the opposite side of erecting machine 4, the system also include being used for plugging into old beam 7 two second fortune beam dollies 6, for will be old
Beam 7 transports the second fortune beam special train 9 left the theatre and hangs onto the second fortune beam special train 9 for old beam 7 to be transported into beam dollies 6 from two second
On two second upside-down mounting gantry 8.
With reference to shown in Fig. 4 to Fig. 6, by liftable frong guide column 41 and BB1 43, the overall landing of equipment can be achieved,
Coordinate the motion of hanging beam dolly 44 again, realize the erection of new beam and the dismounting of old beam 7, by the overall landing of equipment, make to change beam
Process is not influenceed by natural conditions such as wind-force, will not make to fall beam to cause a deviation, and is improved and is changed beam efficiency；Furthermore it is also possible to have
Effect reduces the lifting altitude of equipment in work progress, realizes and T-shaped beam is smoothly completed under the operating mode for having track clearance requirement
Change beam operation, it is ensured that safe efficient in " skylight point " on the premise of not causing any unnecessary influence on former line facility
The frame that changes that whole hole simple supported T-beam is completed on ground is constructed.
With reference to shown in figure 3, the both lateral sides of girder 42 have the edge of a wing 421；Hanging beam dolly 44 includes moving cart 441 and horizontal stroke
Bridge 442, the top of moving cart 441 are provided with the driving wheel coordinated with the top side on the edge of a wing 421 of the both sides of girder 42, that is, moved small
The top of car 441 has two row's driving wheels, moving cart 441 by the cooperation of two row's driving wheels and 42 liang of side wing edges 421 of girder and
Hang and be located on girder 42, the driving wheel is used to drive length direction of the moving cart 441 along girder 42 to move；Hanging beam dolly 44
Bottom side is provided with mounting groove, is arranged on across beam 442 in mounting groove and by drive mechanism relative to the transverse shifting of girder 42, horizontal
Bridge 442 is provided with hoist engine, and the lift rope 443 of hoist engine, which is used to bundle, treats the new beam 5 of frame or old beam 7 to be replaced, passes through volume
The contraction of rope 443 is raised, the lower section for being bundled in girder 42 of the new beam 5 of frame or old beam 7 tightly will be treated, and then by across the phase of beam 442
For the transverse shifting of girder 42, realize that the bias of T-shaped beam is risen and fallen, so as to realize T-shaped beam bridge upstream side and downlink side roof beam structure 11
Replacing.
In certain embodiments, the bottom of frong guide column 41 and BB1 43 is equipped with cushion block, and cushion block can increase frong guide column 41
With the support strength and stability of BB1 43, and cushion block cross-sectional area is preferably greater than the cross section of frong guide column 41 and BB1 43
Product, the lifting surface area so supported is bigger, and support is more steady.
With reference to shown in Fig. 7 and Fig. 8, at least two roof beams structure 11 are equipped with the first fortune beam special train 1 and the second fortune beam special train 9,
Roof beam structure 11 includes base 112 and two diagonal braces 111 being arranged on base 112, and two diagonal braces 111 set in splayed, are used for
It is inserted the longeron of T-shaped beam, base 112 is supported on the bottom of T-shaped beam, and two diagonal braces 111 are against T-shaped beam both sides respectively
On web, that is, the longeron of T-shaped beam and the intersection of crossbeam are supported on, for when equipment is marched into the arena, treating the new beam 5 of frame or withdrawing from the arena
Old beam 7 forms support.
With reference to shown in Fig. 7 and Fig. 9, first upside-down mounting gantry 2 and second upside-down mounting gantry 8 are Collapsible structure, and first transports beam
Special train 1 and second is transported and two gantry crane supports 12 is removably provided with beam special train 9, and gantry crane support 12 is used to support first to fall
Upside-down mounting gantry 8, gantry 2 and second is filled, because the width between two supporting legs at upside-down mounting gantry is greater than the He of the first fortune beam special train 1
Second fortune beam special train 9, so when first upside-down mounting gantry 2 and second upside-down mounting gantry 8 are marched into the arena, it is necessary to by above-mentioned gantry crane support 12
To support, treat that the first fortune beam special train 1 and the second fortune beam special train 9 transport at first upside-down mounting gantry 2 and second upside-down mounting gantry 8 in place
When, the supporting leg at first upside-down mounting gantry 2 and second upside-down mounting gantry 8 is extended downwardly from and is supported on bridge floor, while departs from gantry crane support
12, gantry crane support 12 can be from the first fortune beam special train 1 and second after first upside-down mounting gantry 2 and second upside-down mounting gantry 8 has been transported
Unload on fortune beam special train 9, be loaded on when first upside-down mounting gantry 2 and second upside-down mounting gantry 8 are withdrawn from the arena.
With reference to shown in Fig. 7 and Figure 10, two loop wheel machine supports 13, loop wheel machine are also removably provided with the first fortune beam special train 1
Support 13 is used to be supported on the lower section of hanging beam dolly 44 when changing erecting machine 4 and marching into the arena, change when erecting machine 4 is marched into the arena frong guide column 41 and after
Guide pillar 43 is contraction state, when change erecting machine 4 arrive at change beam position when, frong guide column 41 and BB1 43 are extended downwardly from and supported
On bridge floor, while two hanging beam dollies 44 depart from loop wheel machine supports 13, and loop wheel machine support 13 is changed after erecting machine 4 from first having transported
Unloaded on fortune beam special train 1, erecting machine 4 to be changed is loaded on when withdrawing from the arena.
With reference to shown in Figure 11 and Figure 12, the system also includes two rows of tracks 15 and multiple loop wheel machine sleeper beams 14, multiple loop wheel machine pillows
Beam 14, which is erected at, to be changed on the T-shaped beam bridge of beam position both sides, and two tracks 15 are respectively erected in multiple loop wheel machines of both sides to be changed of setting a roof beam in place
On sleeper beam 14, two tracks 15 are that the first fortune beam special train 1, second transports the fortune beam of beam special train 9, first dolly 3 and the second fortune beam dolly 6
Dedicated track 15.
Further, the both ends of multiple loop wheel machine sleeper beams 14 extend the both sides of errant 15, for support frong guide column 41, after
Guide pillar 43, first upside-down mounting gantry 2 and second upside-down mounting gantry 8, the material of loop wheel machine sleeper beam 14 is firm, sets steadily, can be to first
Upside-down mounting gantry 2, second upside-down mounting gantry 8 and the support for changing the formation stabilization of erecting machine 4.
As shown in fig. 7, the first fortune beam special train 1 and the second fortune beam special train 9 include headstock and more piece flatcar 10, wherein, the
The headstock of the headstock of one fortune beam special train 1 and the second fortune beam special train 9 is to be detachably connected between each flatcar 10 backwards to setting.
When the transport of each equipment is marched into the arena, the flatcar 10 of the flatcar 10 of the first fortune beam special train 1 and the second fortune beam special train 9 can be connected to each other,
After each equipment after in place and installation, then the flatcar 10 of the flatcar 10 for transporting beam special train 1 by first and the second fortune beam special train 9 divides each other
Open, finally change after beam terminates and be again connected the flatcar 10 of the first fortune beam special train 1 with the flatcar 10 of the second fortune beam special train 9, to transport
Each equipment is withdrawn from the arena.
The work progress of the system is：
1st, preparation
1) march into the arena
2) section of track is cut：The segmentation 32m sections of track are stepped up waiting to set a roof beam in place.It is required that first drilling, post-tensioning rail is fixed, then saws rail, finally
Upper junction plate is fixed.After the completion of, it still may insure normally to drive a vehicle on circuit.
3) railway ballast is removed, sleeper beam is installed：Railway ballast is removed, is changed waiting to set a roof beam in place to install respectively across end and its in addition appropriate location
The special sleeper beam of erecting machine and inverted gantry crane.Sleeper beam is horizontally through two rail, is supported near two panels " T " web, sets
It must not influence normally to drive a vehicle after good.
4) other subsequent treatments：Such as, dead bearing coupling bolt is embroidered in processing, it is ensured that changing can back out when setting a roof beam in place；Cut " T "
Horizontal-associate board concrete protective layer etc..
5) withdraw from the arena
Another " skylight point " implementation is operated in above, is not take up the formal engineering time.
2nd, frame construction is changed
1) vehicle is organized, new beam is transported and equipment is entered the court；
2) according to the placement location of sleeper beam, by upside-down mounting gantry and erecting machine installation is changed in place.
3) untie to wait to set a roof beam in place and step up section of track coupling bolt, hang out the 32m sections of track, meet at low clearance fortune beam dolly, by two
Upside-down mounting gantry coordinates upside-down mounting, gives fortune beam special train again.Once the 32m sections of track, which hang out girder span, can remove on beam railway ballast (without whole
Remove, the certain railway ballast of old sill bolt is removed).During this period, by new beam upside-down mounting on low clearance fortune beam dolly.
4) hang except first " T " beam, the old beam changed is placed on low clearance fortune beam dolly, and turn by upside-down mounting gantry
Move on on fortune beam special train, then transport is withdrawn from the arena；Continue to hang except second " T " beam, ditto.
5) marched into the arena using transporting beam special train and transport new beam, and low clearance is transferred to by upside-down mounting gantry and transported on beam dolly, carry beam on the back
Fall beam to changing erecting machine opening position and carrying out lifting, complete the erection of a piece of new beam；Second the same.
6) the dress 32m sections of track are returned, recover track structure.
7) equipment Removal, entrucking.
8) personnel, Jiu Liang, equipment are withdrawn from the arena.
In summary, it is proposed by the present invention change erecting beam construction technology can ensure not cause existing line it is any unnecessary broken
On the premise of bad, frame construction is changed in the whole hole that freely-supported " T " beam on existing line is safely and fast completed in " skylight point ", effectively
Ground solves the problem of current cost height, workload during changing erecting beam construction, long-term closed-loop, is available for road bureau's permanent-way technology
It is equipped with and uses.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of double-T shaped beam bridge changes beam construction system, it is characterised in that including：
The erecting machine that changes for changing beam opening position is arranged on, the erecting machine that changes includes girder, and the girder is provided with can be along its length
Two hanging beam dollies of direction motion, the girder are set up on bridge floor by frong guide column and BB1, and the frong guide column is with after
Guide pillar is Collapsible structure；
It is arranged on the first fortune beam special train that the new beam of frame is treated for transporting for changing erecting machine side, the two first fortune beams for feeding beam
Dolly and for will treat the new beam of frame from described first fortune beam special train hang onto two it is described first fortune beam dollies on two first
Upside-down mounting gantry；And
It is arranged on two second fortune beam dollies of the old beam that is used to plug into for changing erecting machine opposite side, for old beam to be transported into what is left the theatre
Second transports beam special train and for old beam to be hung onto to two on the second fortune beam special train from two the second fortune beam dollies
Second upside-down mounting gantry.
2. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that horizontal the two of the girder
Side has the edge of a wing；The hanging beam dolly includes moving cart and is provided with and the girder across beam, the top of the moving cart
The driving wheel that the top side on the edge of a wing of both sides coordinates, the driving wheel are used to drive length side of the moving cart along the girder
To movement；The bottom side of the hanging beam dolly is provided with mounting groove, described to be arranged on across beam in the mounting groove and pass through driving machine
Structure is described to be provided with hoist engine across beam relative to the girder transverse shifting.
3. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that the frong guide column is led with after
Post is telescopic oil cylinder.
4. double-T shaped beam bridge according to claim 3 changes beam construction system, it is characterised in that the frong guide column is led with after
The bottom of post is equipped with cushion block.
5. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that the first fortune beam special train
At least two roof beams structure are equipped with the second fortune beam special train, the roof beam structure includes base and two diagonal braces being arranged on base,
Two diagonal braces are set in splayed, and for being inserted the longeron of T-shaped beam, the base is supported on the bottom of T-shaped beam,
Two diagonal braces are against on the web of T-shaped beam both sides respectively.
6. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that described first upside-down mounting gantry
It is Collapsible structure with second upside-down mounting gantry, is removably provided with the first fortune beam special train and the second fortune beam special train
Two gantry crane supports, the gantry crane support are used to support described first upside-down mounting gantry and second upside-down mounting gantry.
7. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that the first fortune beam special train
On be removably provided with two loop wheel machine supports, the loop wheel machine support is used to be supported on hanging beam when changing erecting machine and marching into the arena and withdraw from the arena
The lower section of dolly.
8. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that also including two rows of tracks and
Multiple loop wheel machine sleeper beams, multiple loop wheel machine sleeper beams, which are erected at, to be changed on the T-shaped beam bridge of beam position both sides, two track difference framves
It is located on multiple loop wheel machine sleeper beams of both sides to be changed of setting a roof beam in place.
9. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that multiple loop wheel machine sleeper beams
Both ends extend the both sides of the track, for supporting the frong guide column, BB1, first upside-down mounting gantry and the second upside-down mounting
Gantry.
10. double-T shaped beam bridge according to claim 1 changes beam construction system, it is characterised in that the first fortune beam special train
Include headstock and more piece flatcar, the headstock of the first fortune beam special train and the described second fortune beam special train with the second fortune beam special train
Headstock is to be detachably connected between each flatcar backwards to setting.
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| CN201710835375.3A CN107386128A (en) | 2017-09-15 | 2017-09-15 | Double-T shaped beam bridge changes beam construction system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835375.3A CN107386128A (en) | 2017-09-15 | 2017-09-15 | Double-T shaped beam bridge changes beam construction system |
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| CN110735404A (en) * | 2019-11-26 | 2020-01-31 | 中铁第五勘察设计院集团有限公司 | Variable width guide beam |
| CN110804960A (en) * | 2019-11-26 | 2020-02-18 | 中铁第五勘察设计院集团有限公司 | Whole hole beam frame replacing method |
| CN113481881A (en) * | 2021-06-29 | 2021-10-08 | 中交二公局第三工程有限公司 | Construction method for splicing, widening and dismantling reconstruction of T-shaped structure navigation bridge with hanging beams |
| WO2021254236A1 (en) * | 2020-06-16 | 2021-12-23 | 中铁工程设计咨询集团有限公司 | Construction method for replacement of girder structure of bridge |
| CN114875813A (en) * | 2021-12-16 | 2022-08-09 | 长沙理工大学 | Construction equipment and construction method for conveniently and easily dismantling and rebuilding reinforced concrete steel frame arch bridge |
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| CN114875813B (en) * | 2021-12-16 | 2024-02-23 | 长沙理工大学 | Construction equipment and construction method for dismantling and rebuilding reinforced concrete steel frame arch bridge |
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