CN107869112A - A kind of traction system and method for larger radius of curvature bridge - Google Patents
A kind of traction system and method for larger radius of curvature bridge Download PDFInfo
- Publication number
- CN107869112A CN107869112A CN201711148743.3A CN201711148743A CN107869112A CN 107869112 A CN107869112 A CN 107869112A CN 201711148743 A CN201711148743 A CN 201711148743A CN 107869112 A CN107869112 A CN 107869112A
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- China
- Prior art keywords
- dolly
- steel wire
- pulley
- slow
- seat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 230000000916 dilatatory effect Effects 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 240000006394 Sorghum bicolor Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of traction system and method for larger radius of curvature bridge, traction system includes fortune beam trolley track, the trolley track is installed on transverse distribution beam, motor, reduction box, slow-motion hoist are respectively equipped with the both ends of fortune beam trolley track, the motor drives slow-motion hoist by reduction box, fortune beam dolly is provided with trolley track, seat of restricting is also associated with the vehicle frame of fortune beam dolly, be configured with steel wire rope on rope seat is connected with slow-motion hoist.Dilatory method is：Larger radius of curvature steel box-girder is placed on fortune beam dolly, can be transported by lineoutofservice signal pull on curve track；Can direction along ng a path arrangement by leading block after steel wire tensioning.The present invention dolly road wheel can along shaft axis direction 360 ° freely rotate, fully ensure that dolly can smoothly along larger radius of curvature track reciprocating motion, strong applicability；The rope seat of the present invention is arranged on two crossbeam bottoms, is conveniently adjusted pulling force of the steel wire rope to dolly, and increase mechanical efficiency reduces the possibility of dolly derailing, further increases its reliability simultaneously.
Description
Technical field
The present invention relates to Bridge Construction technical field of construction, specifically a kind of fortune beam for larger radius of curvature bridge
Dolly.
Background technology
With the fast development of the network of communication lines, increasing bridge need to cross over or under wear existing highway, railway, river etc. and set
Apply, in order to not influence the normal operation of existing facility, mainly use incremental launching construction engineering method and construction by swing at present.For existing
Erection technique has the disadvantage that：1st, it is not suitable with multispan and becomes sorghum, the curve of Curvature varying and the big bridge of vertical curvature；2nd, pushed up
The limitation of cantilever moment of flexure is pushed away, pushing tow across footpath is more than 70 ~ 80m, uneconomical；3rd, the alternate stress during pushing tow makes beam height value
Greatly, interim beam is more, and tension process is cumbersome；4th, the increase that pushing tow process is grown with bridge, construction speed are slower；5th, rotator construction relatively pushes up
It is increasingly complex to push away construction, it is high to construction technical requirement.
The content of the invention
The technical problems to be solved by the invention are that providing one kind for above-mentioned the shortcomings of the prior art can run
Reliably, the traction system and method for larger radius of curvature bridge of strong applicability.
The technical solution adopted in the present invention is：A kind of traction system for larger radius of curvature bridge, it is characterised in that：
Including transporting beam trolley track, the trolley track is installed on transverse distribution beam, is respectively equipped with the both ends of fortune beam trolley track
Motor, reduction box, slow-motion hoist, the motor drive slow-motion hoist by reduction box, and fortune beam is provided with trolley track
Dolly, the fortune beam dolly include vehicle frame, road wheel group are connected at the both ends of vehicle frame, and the road wheel group includes bogie,
Rotating shaft is provided with bogie, the both ends of the rotating shaft are connected by bearing and bogie phase configuration, the lower end of the rotating shaft respectively
Road wheel seat is connected to, road wheel is configured on wheel seat of being expert at, seat of restricting is also associated with vehicle frame, steel wire rope and slow motion are configured with rope seat
Hoist engine is connected.
By above-mentioned technical proposal, leading block is configured with transverse distribution beam, the leading block passes through rotating shaft and horizontal stroke
It is connected to distribution beam, and is fixed by bearing pin, is wrapped in the steel wire rope on the slow-motion hoist of fortune beam trolley track both sides by leading
It is oriented to pulley.
By above-mentioned technical proposal, the bogie is connected with the flanged plate being fixed on vehicle frame.
By above-mentioned technical proposal, the vehicle frame includes longitudinal and cross beam, the both ends difference connecting cross beam of longeron, in both phases
Adpting flange plate on angle even, vertical muscle is also associated between two crossbeams, horizontal bar is also associated between two longerons.
By above-mentioned technical proposal, the rope seat is installed on crossbeam, and steel wire rope is configured with rope seat.
By above-mentioned technical proposal, groove is provided among the road wheel, for preventing dolly from derailing.
By above-mentioned technical proposal, the leading block includes pulley steering base, pulley base, pulley, and the pulley is installed in
On pulley base, the pulley base is fixed on pulley steering base by rotating shaft and latch, and the pulley steering base is fixed on transverse direction
In distribution beam.
A kind of dilatory method for larger radius of curvature bridge, it is characterised in that：Comprise the following steps：
S1, provide the above-mentioned traction system for larger radius of curvature bridge；
S2, by motor, reduction box and slow-motion hoist be arranged on hoist engine bearing on, adjustment fortune beam dolly initial position and
After steel wire rope is installed on rope seat, along fortune beam trolley track tensioning steel wire rope, steel box-girder is lifted into and transported on beam dolly；
S3, start motor, power is delivered to slow-motion hoist by reduction box, is rotated by slow-motion hoist roller and drives steel wire
Rope, steel wire rope are arranged by the lateral confinement of leading block along the tensioning of fortune beam trolley track direction；
S4, transport start, when transport beam dolly close to its by through leading block when, the latch for extracting the leading block is directed to
Pulley is rotated by 90 °, avoid transport beam dolly rope seat and leading block interference, fortune beam dolly entirely through after the pulley again by pulley turn
Continue to control steel wire rope arrangement form and direction of pull to original position.
Having the beneficial effect that acquired by the present invention：
1st, the applicable multispan of the present invention becomes jowar, the curve of Curvature varying and the big bridge of vertical curvature, solves current deep camber
Radius steel box-girder incremental launching construction is difficult to the realistic problem completed, meanwhile, in addition to deep camber steel box-girder, other cross over existing line steel
Box beam can equally be constructed using this system, the more simple saving cost of operation；
2nd, fortune beam dolly road wheel of the invention can along shaft axis direction 360 ° freely rotate, fully ensure that dolly can be smoothly along big
Radius of curvature track moves back and forth, strong applicability；
3rd, rope seat of the invention is arranged on two crossbeam bottoms, is conveniently adjusted pulling force of the steel wire rope to dolly, increases mechanical efficiency
The possibility of dolly derailing is reduced simultaneously, further increases its reliability.
Brief description of the drawings
Fig. 1 is the overall structure diagram of traction system of the present invention.
Fig. 2 is the dynamical system schematic diagram installed in the present invention on hoist engine bearing.
Fig. 3 is the transverse sectional view of traction system of the present invention.
Fig. 4 is the main sectional view of leading block in the present invention.
Fig. 5 is the front view of leading block in the present invention.
Fig. 6 is the floor map that beam dolly is transported in the present invention.
Fig. 7 is the transverse side view that beam dolly is transported in the present invention.
Fig. 8 is the front view for the road wheel group that beam dolly is transported in the present invention.
Fig. 9 is the main sectional view that beam dolly road wheel group is transported in the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As Figure 1-3, a kind of traction system for larger radius of curvature bridge is present embodiments provided, including fortune beam is small
Track road 4, the trolley track 4 are installed on transverse distribution beam 5, are set respectively in the starting of fortune beam trolley track and termination both ends
There is hoist engine bearing 9, motor 1, reduction box 2, slow-motion hoist 3 are installed on hoist engine bearing 9, the motor 1 is by subtracting
Fast case 2 drives slow-motion hoist 3, and fortune beam dolly 7 is provided with trolley track 4.As Figure 6-9, the fortune beam dolly 7 includes
Vehicle frame 17, road wheel group 16 is connected at the both ends of vehicle frame 17, and the road wheel group includes bogie 22, set on bogie 22
There is rotating shaft 24, the both ends of the rotating shaft pass through self-aligning thrust roller bearing respectively（21,23）With the phase configuration of bogie 16, described turn
The lower end of axle 24 is connected with road wheel seat 18, and road wheel 20, the road wheel 20 and the road wheel on road wheel seat 18 are configured on wheel seat 18 of being expert at
The phase configuration of axle 19.The vehicle frame 17 includes longeron 26 and crossbeam 25, the both ends difference connecting cross beam 25 of longeron 26, is connected at both
Angle on adpting flange plate 29, vertical muscle 27 is also associated between two crossbeams, horizontal bar 28 is also associated between two longerons, in two crossbeams
28 lower end is connected to rope seat 30, and steel wire rope 8 is configured with rope seat 30.Wherein, the bogie 17 is with being fixed on car
Flanged plate on frame is connected.
During operation, the road wheel 20 of dolly is placed directly on track, fluted among road wheel 20, can prevent dolly derailing.Will
Steel wire rope is fixed on rope seat 30, and steel wire rope is conveniently adjusted steel wire by pulling force of the seat 30 to dolly of restricting, rope seat installed in bottom
The pulling force restricted to dolly.Due to dolly road wheel can along 24 axis direction of rotating shaft 360 ° freely rotate, fully ensure that dolly can smoothly
Moved back and forth along larger radius of curvature track.
The present invention is for different size steel box beam erections, crossbeam 25, longeron 26, vertical muscle 27, the horizontal stroke of Yun Liang car frames 17
Muscle 28 can be according to transport steel box-girder Length x Width adjustment.
Wherein, steel wire rope 8 is wrapped on the slow-motion hoist 3 of the two ends of fortune beam trolley track 4, by be fixed on track
Leading block 6 above transverse distribution beam is engaged, and makes steel wire rope 8 approximately along curvilinear track shape cloth to roll over Dai Qu method
Put, be direction along ng a path forever by restricting seat to the direction of pull of dolly, increase mechanical efficiency simultaneously reduce dolly derailing can
Can property
In the present embodiment, as illustrated in figures 4-5, leading block 6 is distributed on transverse distribution beam 5, and the leading block 6 includes
Pulley steering base 11, pulley base 14, pulley 15, the pulley 15 are installed on pulley base 14, and the pulley base 14 passes through rotating shaft
12 and latch 13 be fixed on pulley steering base 11, the pulley steering base 11 is fixed on transverse distribution beam 5, is wrapped in fortune beam
Steel wire rope 8 on the slow-motion hoist of trolley track both sides is oriented to by leading block 6.Latch 13 constrains the plane of leading block 6 and turned
It is dynamic, it when transporting beam dolly 7 close to the leading block can extract latch 13 and be directed to pulley 6 and be rotated by 90 °, avoid dolly rope seat and lead
Interfere to pulley 6, fortune beam dolly 7 continues to control steel wire rope 8 to arrange entirely through pulley is gone into original position again after the leading block 6
Form and direction of pull.
The present embodiment additionally provides a kind of dilatory method for larger radius of curvature bridge, it is characterised in that：Including as follows
Step：
S1, provide the above-mentioned traction system for larger radius of curvature bridge；
S2, motor 1, reduction box 2 and slow-motion hoist 3 be arranged on hoist engine bearing 9, the initial bit of adjustment fortune beam dolly 7
After putting and steel wire rope 8 being installed on rope seat, steel wire rope 8 is tensioned along fortune beam trolley track 4, is lifted steel box-girder 10 using crane
Onto fortune beam dolly 7；
S3, start motor 1, power is delivered to slow-motion hoist 3 by reduction box 2, rotates and drives by the roller of slow-motion hoist 3
Steel wire rope 8, steel wire rope 8 are arranged by the lateral confinement of leading block 6 along the direction tensioning of fortune beam trolley track 4；
S4, preparation start to transport, and open the latch of first leading block 6, pulley is rotated by 90 ° and facilitates dolly to pass through；
S5, steel wire rope 8 by the lateral confinement of leading block 6 to fortune beam dolly 7 along parallel orbit direction pulling force, while road wheel group
16 provide the ability turned to along curve track for fortune beam dolly 7, and fortune beam dolly 7 carries steel box-girder 10 and reaches shown position.Now
First leading block 6 is closed, opening second leading block 6 makes dolly continue to pass through；
S6, shown fortune beam dolly 7 and steel box-girder 41 move to expected bridge location position, a piece of section steel case along fortune beam trolley track 4
Beam transport is completed.
For different curvature and size steel box beam erection, fortune beam trolley track 4 can be adjusted according to different bridge types, transport beam
Dolly 7 can according to transport steel box-girder width adjustment, also can two one group of dollies transport big width steel box-girder simultaneously.
Claims (8)
- A kind of 1. traction system for larger radius of curvature bridge, it is characterised in that：Including transporting beam trolley track, the small track Road is installed on transverse distribution beam, and motor, reduction box, slow-motion hoist are respectively equipped with the both ends of fortune beam trolley track, described Motor drives slow-motion hoist by reduction box, and fortune beam dolly is provided with trolley track, and the fortune beam dolly includes vehicle frame, The both ends of vehicle frame are connected to road wheel group, and the road wheel group includes bogie, and rotating shaft is provided with bogie, the rotating shaft Both ends are connected with road wheel seat, road wheel are configured on wheel seat of being expert at by bearing and bogie phase configuration, the lower end of the rotating shaft respectively, Seat of restricting is also associated with vehicle frame, be configured with steel wire rope on rope seat is connected with slow-motion hoist.
- 2. traction system according to claim 1, it is characterised in that：Leading block, institute are configured with transverse distribution beam State leading block by rotating shaft with transverse distribution beam to be connected, and fixed by bearing pin, be wrapped in fortune beam trolley track both sides slow motion Steel wire rope on hoist engine is oriented to by leading block.
- 3. traction system according to claim 1 or 2, it is characterised in that：The bogie and the method being fixed on vehicle frame Blue plate is connected.
- 4. traction system according to claim 3, it is characterised in that：The vehicle frame includes longitudinal and cross beam, and the two of longeron End connecting cross beam, the adpting flange plate on the angle that both are connected respectively, are also associated with vertical muscle between two crossbeams, between two longerons also It is connected with horizontal bar.
- 5. traction system according to claim 4, it is characterised in that：The rope seat is installed on crossbeam, is matched somebody with somebody on rope seat It is equipped with steel wire rope.
- 6. traction system according to claim 1 or 2, it is characterised in that：Groove is provided among the road wheel, for preventing Dolly derails.
- 7. traction system according to claim 1 or 2, it is characterised in that：The leading block includes pulley steering base, cunning Wheel seat, pulley, the pulley are installed on pulley base, and the pulley base is fixed on pulley steering base by rotating shaft and latch, The pulley steering base is fixed on transverse distribution beam.
- A kind of 8. dilatory method for larger radius of curvature bridge, it is characterised in that：Comprise the following steps：S1, provide the traction system for larger radius of curvature bridge described in any claim in claim 1 to 7；S2, by motor, reduction box and slow-motion hoist be arranged on hoist engine bearing on, adjustment fortune beam dolly initial position and After steel wire rope is installed on rope seat, along fortune beam trolley track tensioning steel wire rope, steel box-girder is lifted into and transported on beam dolly；S3, start motor, power is delivered to slow-motion hoist by reduction box, is rotated by slow-motion hoist roller and drives steel wire Rope, steel wire rope are arranged by the lateral confinement of leading block along the tensioning of fortune beam trolley track direction；S4, transport start, when transport beam dolly close to its by through leading block when, the latch for extracting the leading block is directed to Pulley is rotated by 90 °, avoid transport beam dolly rope seat and leading block interference, fortune beam dolly entirely through after the pulley again by pulley turn Continue to control steel wire rope arrangement form and direction of pull to original position；S5, fortune beam dolly and steel box-girder move to expected bridge location position along fortune beam trolley track 4, and a piece of section steel box-girder has transported Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148743.3A CN107869112B (en) | 2017-11-17 | 2017-11-17 | Traction system and method for bridge with large curvature radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148743.3A CN107869112B (en) | 2017-11-17 | 2017-11-17 | Traction system and method for bridge with large curvature radius |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107869112A true CN107869112A (en) | 2018-04-03 |
| CN107869112B CN107869112B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711148743.3A Active CN107869112B (en) | 2017-11-17 | 2017-11-17 | Traction system and method for bridge with large curvature radius |
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| Country | Link |
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| CN (1) | CN107869112B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518604A (en) * | 2018-07-23 | 2019-03-26 | 中铁重工有限公司 | One kind being used for deep camber steel box-girder push construction method |
| CN114808741A (en) * | 2022-05-27 | 2022-07-29 | 甘肃博睿交通重型装备制造有限公司 | Method for transferring corrugated web steel box-concrete composite beam |
| CN114808741B (en) * | 2022-05-27 | 2024-04-23 | 甘肃博睿交通重型装备制造有限公司 | Transfer method for corrugated web steel box-concrete composite beam |
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| CA2492910A1 (en) * | 2004-03-12 | 2005-09-12 | Transol Corporation | Trolley with tractor drive for use in curved enclosed tracks and system including the same |
| CN101220580A (en) * | 2007-12-04 | 2008-07-16 | 中铁大桥局股份有限公司 | Portrait multi-point continuously dragging construction method for trussed steel beam |
| CN203174512U (en) * | 2013-03-05 | 2013-09-04 | 中铁二十一局集团有限公司 | Steel truss girder dragging construction intelligent measuring and controlling system |
| CN103410093A (en) * | 2013-07-03 | 2013-11-27 | 中交二公局第四工程有限公司 | Reverse dragging device for construction of dragging large-span steel braced girder |
| CN103669229A (en) * | 2014-01-04 | 2014-03-26 | 中铁二十五局集团第二工程有限公司 | Device for preventing arch frame from rolling over in dragging process |
| CN103924529A (en) * | 2014-04-28 | 2014-07-16 | 中铁十局集团建筑工程有限公司 | Rolling drag device and construction method thereof |
| CN106526644A (en) * | 2016-10-10 | 2017-03-22 | 上海联适导航技术有限公司 | Method of calculating relative angle variation between carrier parts |
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2017
- 2017-11-17 CN CN201711148743.3A patent/CN107869112B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2492910A1 (en) * | 2004-03-12 | 2005-09-12 | Transol Corporation | Trolley with tractor drive for use in curved enclosed tracks and system including the same |
| CN101220580A (en) * | 2007-12-04 | 2008-07-16 | 中铁大桥局股份有限公司 | Portrait multi-point continuously dragging construction method for trussed steel beam |
| CN203174512U (en) * | 2013-03-05 | 2013-09-04 | 中铁二十一局集团有限公司 | Steel truss girder dragging construction intelligent measuring and controlling system |
| CN103410093A (en) * | 2013-07-03 | 2013-11-27 | 中交二公局第四工程有限公司 | Reverse dragging device for construction of dragging large-span steel braced girder |
| CN103669229A (en) * | 2014-01-04 | 2014-03-26 | 中铁二十五局集团第二工程有限公司 | Device for preventing arch frame from rolling over in dragging process |
| CN103924529A (en) * | 2014-04-28 | 2014-07-16 | 中铁十局集团建筑工程有限公司 | Rolling drag device and construction method thereof |
| CN106526644A (en) * | 2016-10-10 | 2017-03-22 | 上海联适导航技术有限公司 | Method of calculating relative angle variation between carrier parts |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518604A (en) * | 2018-07-23 | 2019-03-26 | 中铁重工有限公司 | One kind being used for deep camber steel box-girder push construction method |
| CN114808741A (en) * | 2022-05-27 | 2022-07-29 | 甘肃博睿交通重型装备制造有限公司 | Method for transferring corrugated web steel box-concrete composite beam |
| CN114808741B (en) * | 2022-05-27 | 2024-04-23 | 甘肃博睿交通重型装备制造有限公司 | Transfer method for corrugated web steel box-concrete composite beam |
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| Publication number | Publication date |
|---|---|
| CN107869112B (en) | 2023-10-31 |
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