CN108221698A - Bridge Erector low level transition engineering method - Google Patents
Bridge Erector low level transition engineering method Download PDFInfo
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- CN108221698A CN108221698A CN201810136160.7A CN201810136160A CN108221698A CN 108221698 A CN108221698 A CN 108221698A CN 201810136160 A CN201810136160 A CN 201810136160A CN 108221698 A CN108221698 A CN 108221698A
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- Prior art keywords
- bridge erector
- low level
- bridge
- level transition
- engineering method
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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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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
Abstract
The present invention provides a kind of Bridge Erector low level transition engineering methods, belong to Bridge Erector construction field, include the following steps：Nose girder dismounting is transported；Reinforce horn；Portal support is installed；Withdraw rear support leg jacking cylinder；The preceding bale handle trolley of movement and rear bale handle trolley are in girder mid-stop；Beam car, which is packed telescoping mechanism and driven into inside Bridge Erector, to be installed；Remove front leg strut jacking cylinder and portal support lower half；A beam car high position packs Bridge Erector to the bridge side needed guiding through；Installing portal support lower half and passing through portal support reduces Bridge Erector；Portal support lower half and front leg strut are removed, is reduced Bridge Erector using telescoping mechanism and beam car；Low level passes through bridge.A kind of Bridge Erector low level transition engineering method of the present invention is easy to operate, securely and reliably, enters scene without handling appliance, reduces labor intensity, and extends service life of equipment, shortens construction period, improves construction efficiency, saves construction cost, ensures construction worker's safety.
Description
Technical field
The invention belongs to Bridge Erector technical field of construction, are to be related to a kind of Bridge Erector low level transition engineering method more specifically.
Background technology
In current box beam erection engineering, the duration is tight, task weight, it is sometimes desirable to which Bridge Erector low level passes through bridge, and live
There is no Standing position of a crane, low level is needed to pass through, it is necessary to integrally reduce Bridge Erector in certain altitude, equipment carries transition device to spell
Block formula is filled, artificial frequently peace is needed to tear assembled block open, is being transported through with beam car buffer gear lift adjustment height, such technique
Manpower conversion, frequently dismounting are needed, operation is dangerous, labor intensity is big, long in time limit, and can not ensure to complete at the appointed time
Transition task.
Invention content
The purpose of the present invention is to provide a kind of Bridge Erector low level transition engineering method, to solve bridge formation in the prior art
Machine transition needs manpower to convert, and artificial frequently peace tears assembled block open, and operation is dangerous, and labor intensity is big, long in time limit and can not ensure
The technical issues of completing transition task at the appointed time.
To achieve the above object, the technical solution adopted by the present invention is：A kind of Bridge Erector low level transition engineering method is provided, including
Following steps：
(1) Bridge Erector nose girder is removed and is transported to destination with beam car；Reinforce horn；
(2) rear support leg jacking cylinder jacking rear support leg, beam car are packed portal support and are entered inside Bridge Erector and by gate-type
Stent is mounted on rear support leg side；Withdraw rear support leg jacking cylinder；
(3) mobile preceding bale handle trolley and rear bale handle trolley are in girder mid-stop；Beam car packs 1# telescoping mechanisms and 2#
Telescoping mechanism is driven into inside Bridge Erector, and 1# telescoping mechanisms and 2# telescoping mechanisms are stretched out and are fixedly connected with Bridge Erector；
(4) it withdraws and removes front leg strut jacking cylinder；Remove portal support lower half；
(5) a beam car high position packs Bridge Erector to the bridge side needed guiding through；Installation portal support lower half simultaneously passes through door
Formula stent reduces Bridge Erector；
(6) portal support lower half is removed, continues to reduce Bridge Erector using 1# telescoping mechanisms and 2# telescoping mechanisms；
(7) front outrigger for bridge girder erection machine is removed；Being buffered using beam car is further reduced Bridge Erector；
(8) height of Bridge Erector is brought down below bridge height, after checking that each position reaches safety and firmness, low level passes through big
Bridge is transported to destination.
Further, the portal support includes head piece, cross member, upper pillar stand and lower pillar stand；The lower pillar stand setting
In cross member both ends；The lower pillar stand top is connected by folding free bearing with upper pillar stand；The upper pillar stand top connects with head piece
It connects；Cross member fixed seat is additionally provided on the cross member.
Further, the cross member fixed seat height adjustment range is -500~150mm.
Further, it is provided with cat ladder on the upper pillar stand and lower pillar stand.
Further, the portal support lower half includes cross member, lower pillar stand, cross member fixed seat.
Further, the mode for reinforcing horn is in girder horn interior welds stiffener plate.
Further, by preceding bale handle trolley displacement distance on girder after the step of withdrawal rear support leg jacking cylinder
It is braked at the 31000mm of rear support leg center；Rear bale handle trolley is braked on girder at displacement distance rear support leg center 5800mm.
Further, it is connect at the top of the 1# telescoping mechanisms with Bridge Erector horn, bottom is connect with beam car；The 2# stretches
It is connect at the top of contracting mechanism with Bridge Erector horn, bottom is connect with beam car.
Further, the 1# telescoping mechanisms are located at the top of second tire before beam car；The 2# telescoping mechanisms
Positioned at behind beam car above second tire.
Further, the 1# telescoping mechanisms and 2# telescoping mechanisms are connect with beam car and Bridge Erector with high-strength bolt.
A kind of advantageous effect of Bridge Erector low level transition engineering method provided by the invention is：Compared with prior art, this hair
A kind of bright Bridge Erector low level transition engineering method is easy to operate, securely and reliably, enters scene without handling appliance, reduces labor intensity,
Extend service life of equipment, shorten construction period, improve construction efficiency, save construction cost, ensure construction worker's safety.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is Bridge Erector structure diagram provided in an embodiment of the present invention；
Fig. 2 is the status diagram of Bridge Erector after installation portal support provided in an embodiment of the present invention；
Fig. 3 is the status diagram of installation 1# telescoping mechanisms and 2# telescoping mechanisms provided in an embodiment of the present invention；
Fig. 4 is that Bridge Erector provided in an embodiment of the present invention is illustrated by the state that 1# telescoping mechanisms and 2# telescoping mechanisms reduce
Figure；
Structure diagrams of the Fig. 5 for portal support used by the embodiment of the present invention；
Wherein, each reference numeral in figure：
1- girders；2- nose girders；3- rear support legs；4- front leg struts；5- portal supports；6-1# telescoping mechanisms；7-2# telescoping mechanisms；
8- beam cars；9- head pieces；10- cross members；11- upper pillar stands；12- lower pillar stands；13- cross member fixed seats；Bale handle is small before 15-
Vehicle；Bale handle trolley after 16-.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple ", " several " be meant that two or
Two or more, unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 5, now Bridge Erector low level transition engineering method provided by the invention is illustrated.The frame
Bridge machine low level transition engineering method, includes the following steps：
(1) Bridge Erector nose girder 2 is removed and is transported to destination with beam car 8；Reinforce horn；
(2) 3 jacking cylinder of rear support leg jacking rear support leg 3, beam car 8 are packed inside the entrance Bridge Erector of portal support 5 and are incited somebody to action
Portal support 5 is mounted on 3 side of rear support leg；Withdraw 3 jacking cylinder of rear support leg；
(3) mobile preceding bale handle trolley 15 and rear bale handle trolley 16 are in 1 mid-stop of girder；Beam car 8 packs 1# telescopic machines
Structure 6 and 2# telescoping mechanisms 7 are driven into inside Bridge Erector, and 1# telescoping mechanisms 6 and 2# telescoping mechanisms 7 are stretched out and fix company with Bridge Erector
It connects；
(4) it withdraws and removes 4 jacking cylinder of front leg strut, nose girder 2 is risen and is retreated connect with beam car 8；Remove gate-type
5 lower half of stent；
(5) 8 high position of beam car packs Bridge Erector to the bridge side needed guiding through；Installation 5 lower half of portal support simultaneously passes through
Portal support 5 reduces Bridge Erector；
(6) 5 lower half of portal support is removed, continues to reduce Bridge Erector using 1# telescoping mechanisms 6 and 2# telescoping mechanisms 7；
(7) front outrigger for bridge girder erection machine 4 is removed；Being buffered using beam car 8 is further reduced Bridge Erector；
(8) height of Bridge Erector is brought down below bridge height, after checking that each position reaches safety and firmness, low level passes through big
Bridge is transported to destination.
Existing construction site condition is different, some box beam erections are located inside urban district, and traffic convenience, road gathers, case
Bridge Erector needs to start with going to next box beam erection to set up work after erection, needs across city's internal road, work
The journey duration is tight, task weight, needs to reach the Bridge tail for needing to construct in the stipulated time, and formed and treat rack-like state, a high position is packed
It is not suitable for urban district, just needs low level transition at this time, the live position high-fill roadbed having without Standing position of a crane, needs to build bridge
Machine complete machine is reduced in certain altitude, and across the bridge of drive, the duration is tight, in the case of task weight setting up, low level transition
Engineering method is particularly important；It is LG900H Bridge Erectors to be used in the present embodiment, and Bridge Erector actual measurement height is in 13.656 meters, length
73.3 meters, minimum 10.45 meters are needed across certain bridge, it is necessary to reduce by 3.3 meters, it is assembled block that original equipment, which carries transition device,
Formula, needs to use the buffer gear lift adjustment height of beam car 8, such technique needs power to convert, is artificial frequent by 45 centimetres every layer
Peace tears assembled block open and plays bolt, and not only dangerous labor intensity greatly and can not ensure to complete (the use of transition task at the appointed time again
The original device duration needs 15 days).Bridge Erector low level transition engineering method of the present invention uses portal support 5 and telescoping mechanism, and a high position is packed
To the frame core-tube system east side that low level is needed to pass through, it is standby disassemble low level, is integrally reduced Bridge Erector using telescoping mechanism for traveling
Within 10 meters；Low level is by frame core-tube system, then switchs to a high position and pack to next box beam erection bridge and prepare first aperture frame set；This
Invention low level transition engineering method is smoothly, safety, the transition of completion low level works on schedule, securely and reliably, it is ensured that the progress duration improves construction
Efficiency reduces construction labor intensity, does not generate noise, greasy dirt, industrial pollution, meet national requirements for environmental protection, the gate-type branch being related to
Frame 5 and telescoping mechanism cost are relatively low, reduce transition cost.
A kind of advantageous effect of Bridge Erector low level transition engineering method provided by the invention is：Compared with prior art, this hair
A kind of bright Bridge Erector low level transition engineering method is easy to operate, securely and reliably, enters scene without handling appliance, reduces labor intensity,
Extend service life of equipment, shorten construction period, improve construction efficiency, save construction cost, ensure construction worker's safety.
Further, also referring to Fig. 2 to Fig. 5, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, the portal support 5 include head piece 9, cross member 10, upper pillar stand 11 and lower pillar stand 12；The lower pillar stand
12 are set to 10 both ends of cross member；12 top of lower pillar stand is connected by folding free bearing and upper pillar stand 11；The upper pillar stand 11
Top is connect with head piece 9；10 fixed seat of cross member is additionally provided on the cross member 10；LG900H Bridge Erectors use gate-type branch
Frame 5 and telescoping mechanism smoothly, safety, are completed to wear under low level on schedule, reach next Bridge tail, and rack-like state is treated in formation；This
One group of the portal support 5 and telescoping mechanism that secondary low level transition is related to amount to 600,000 yuan of cost, it is ensured that duration progress, equipment and apply
The safety of work operating personnel.
Further, referring to Fig. 5, a kind of specific embodiment party as Bridge Erector low level transition engineering method provided by the invention
Formula, the 10 fixed seat height adjustment range of cross member are -500~150mm；The size of the portal support 5 for 8254 ×
3000×7660mm。
Further, referring to Fig. 5, a kind of specific embodiment party as Bridge Erector low level transition engineering method provided by the invention
Formula, is provided with cat ladder on the upper pillar stand 11 and lower pillar stand 12, it is convenient up and down.
Further, referring to Fig. 5, a kind of specific embodiment party as Bridge Erector low level transition engineering method provided by the invention
Formula, 5 lower half of portal support include cross member 10, lower pillar stand 12,10 fixed seat of cross member.
Further, also referring to Fig. 1 to Fig. 4, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, the mode for reinforcing horn is in 1 horn interior welds stiffener plate of girder.
Further, also referring to Fig. 1 to Fig. 4, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, it is described withdrawal 3 jacking cylinder of rear support leg the step of after by preceding bale handle trolley 15 on girder 1 displacement distance
It is braked at 3 center 31000mm of rear support leg；Rear bale handle trolley 16 is made on girder 1 at 3 center 5800mm of displacement distance rear support leg
It is dynamic.
Further, also referring to Fig. 2 to Fig. 4, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, 6 top of 1# telescoping mechanisms are connect with Bridge Erector horn, and bottom is connect with beam car 8；The 2# stretches
7 top of mechanism is connect with Bridge Erector horn, and bottom is connect with beam car 8.
Further, also referring to Fig. 2 to Fig. 4, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, the 1# telescoping mechanisms 6 are located at the top of 8 second tire in front of beam car；The 2# telescoping mechanisms 7
Above beam car 8 below second tire.
Further, also referring to Fig. 2 to Fig. 4, one kind as Bridge Erector low level transition engineering method provided by the invention
Specific embodiment, the 1# telescoping mechanisms 6 and 2# telescoping mechanisms 7 are connect with beam car 8 and Bridge Erector with high-strength bolt；Or
Person be at the top of 1# telescoping mechanisms with, with Bridge Erector horn flanged joint, bottom platform connects with beam car at the top of 2# telescoping mechanisms
It connects, girder horn interior welds stiffener plate.
Herein it should be noted that the Bridge Erector low level transition engineering method of the present invention is not only applicable to LG900H type frame bridges
Machine low level transition, is also applied for the popularization of same type Bridge Erector；Maximum drop after portal support 5 and telescoping mechanism using the present invention
Low clearance can reach 4.5 meters, i.e., LG900H Bridge Erectors are minimum drops within 9 meters (adjustment beam car buffers 20 centimetres), such as tears open
Except can reach within 8 meters after big saddle beam.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of Bridge Erector low level transition engineering method, it is characterised in that include the following steps：
(1) Bridge Erector nose girder is removed and is transported to destination with beam car；Reinforce horn；
(2) rear support leg jacking cylinder jacking rear support leg, beam car are packed portal support and are entered inside Bridge Erector and by portal support
Mounted on rear support leg side；Withdraw rear support leg jacking cylinder；
(3) mobile preceding bale handle trolley and rear bale handle trolley are in girder mid-stop；Beam car packs 1# telescoping mechanisms and 2# stretches
Mechanism is driven into inside Bridge Erector, and 1# telescoping mechanisms and 2# telescoping mechanisms are stretched out and are fixedly connected with Bridge Erector；
(4) it withdraws and removes front leg strut jacking cylinder；Remove portal support lower half；
(5) a beam car high position packs Bridge Erector to the bridge side needed guiding through；Installation portal support lower half simultaneously passes through gate-type branch
Frame reduces Bridge Erector；
(6) portal support lower half is removed, continues to reduce Bridge Erector using 1# telescoping mechanisms and 2# telescoping mechanisms；
(7) front outrigger for bridge girder erection machine is removed；Being buffered using beam car is further reduced Bridge Erector；
(8) height of Bridge Erector is brought down below bridge height, after checking that each position reaches safety and firmness, low level by bridge,
It is transported to destination.
2. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：It is horizontal that the portal support includes top
Beam, cross member, upper pillar stand and lower pillar stand；The lower pillar stand is set to cross member both ends；The lower pillar stand top passes through back flap hinge
Seat is connected with upper pillar stand；The upper pillar stand top is connect with head piece；Cross member fixed seat is additionally provided on the cross member.
3. a kind of Bridge Erector low level transition engineering method as claimed in claim 2, it is characterised in that：The cross member fixed seat height
Adjustable range is -500~150mm.
4. a kind of Bridge Erector low level transition engineering method as claimed in claim 2, it is characterised in that：On the upper pillar stand and lower pillar stand
It is provided with cat ladder.
5. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：The portal support lower half packet
Include cross member, lower pillar stand, cross member fixed seat.
6. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：It is described reinforce horn mode be
In girder horn interior welds stiffener plate.
7. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：The withdrawal rear support leg jacking oil
Preceding bale handle trolley is braked on girder at displacement distance rear support leg center 31000mm after the step of cylinder；By rear bale handle trolley
It is braked at displacement distance rear support leg center 5800mm on girder.
8. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：At the top of the 1# telescoping mechanisms with
Bridge Erector horn connects, and bottom is connect with beam car；It is connect at the top of the 2# telescoping mechanisms with Bridge Erector horn, bottom and Yun Liang
Vehicle connects.
9. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：The 1# telescoping mechanisms are located at fortune
The top of second tire of beam front of the host；The 2# telescoping mechanisms are located at behind beam car above second tire.
10. a kind of Bridge Erector low level transition engineering method as described in claim 1, it is characterised in that：The 1# telescoping mechanisms and 2#
Telescoping mechanism is connect with beam car and Bridge Erector with high-strength bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136160.7A CN108221698A (en) | 2018-02-09 | 2018-02-09 | Bridge Erector low level transition engineering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136160.7A CN108221698A (en) | 2018-02-09 | 2018-02-09 | Bridge Erector low level transition engineering method |
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| Publication Number | Publication Date |
|---|---|
| CN108221698A true CN108221698A (en) | 2018-06-29 |
Family
ID=62661482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810136160.7A Pending CN108221698A (en) | 2018-02-09 | 2018-02-09 | Bridge Erector low level transition engineering method |
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Cited By (3)
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| CN109750604A (en) * | 2019-02-14 | 2019-05-14 | 襄阳协利成机车车辆工程设备有限公司 | A kind of Bridge Erector easy to use |
| CN111877173A (en) * | 2020-07-29 | 2020-11-03 | 中交第二航务工程局有限公司 | Long-distance rapid transition method for bridge girder erection machine |
| CN114293474A (en) * | 2021-12-31 | 2022-04-08 | 中铁十四局集团青岛工程有限公司 | Carrying support and high-speed rail bridge girder erection machine transferring method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109750604A (en) * | 2019-02-14 | 2019-05-14 | 襄阳协利成机车车辆工程设备有限公司 | A kind of Bridge Erector easy to use |
| CN111877173A (en) * | 2020-07-29 | 2020-11-03 | 中交第二航务工程局有限公司 | Long-distance rapid transition method for bridge girder erection machine |
| CN114293474A (en) * | 2021-12-31 | 2022-04-08 | 中铁十四局集团青岛工程有限公司 | Carrying support and high-speed rail bridge girder erection machine transferring method |
| CN114293474B (en) * | 2021-12-31 | 2024-01-23 | 中铁十四局集团青岛工程有限公司 | Method for transferring carrying support and viaduct machine |
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Application publication date: 20180629 |