CN110273380A - Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method - Google Patents
Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method Download PDFInfo
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- CN110273380A CN110273380A CN201910572530.6A CN201910572530A CN110273380A CN 110273380 A CN110273380 A CN 110273380A CN 201910572530 A CN201910572530 A CN 201910572530A CN 110273380 A CN110273380 A CN 110273380A
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- steel box
- girder
- incremental launching
- screw
- brace
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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 steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method, can not only carry out the guiding and limit of direction across bridge to the steel box-girder in incremental launching construction, and structure it is simple, it is safe and reliable, convenient for having level curve steel box-girder incremental launching construction.Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter is symmetricly set on steel box-girder two sides comprising frame body, top-pushing mechanism and two adjustable guide wheels；Top-pushing mechanism is arranged on the inside of frame body, for driving steel box-girder to vertically move, adjustable guide wheel prolongs vertical bridge to arrangement, it is disposed side by side on frame body, each adjustable guide wheel includes idler wheel, turning rolls and two screw-nut components, idler wheel is arranged on turning rolls, and turning rolls is connected on frame body by screw-nut component.
Description
Technical field
The present invention relates to a kind of steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method, belong to
In steel structure bridge technical field of construction.
Background technique
Steel box-girder is the common structure type of Large Span Bridges, is commonly used on the biggish bridge of span.High with intensity,
Structure is light, industrialized production degree height, Yi Xiufu, the advantages that can be recycled, and steel box-girder is more and more widely used.
Existing steel box-girder installation method has bracket installation, free cantilever erection and three kinds of pushing installation, wherein steel box girder incremental launching method
It refers to steel box-girder using the incremental launching device of profession through temporary rest pier or long rails from assembly position pushing tow to installation site
Construction method, this method be suitable for the biggish cross-section continuous bridge of span, especially under bridge the mountain valley of environment complexity with have across
Line is open to traffic the engineering of demand.
The guide and limit mechanism of incremental launching construction generally uses deflector apron/block or utilizes reaction frame and thousand in the prior art
Jin top is laterally adjusted, and is increased the incremental launching construction resistance of steel box-girder longitudinal direction, is needed to be equipped with the pipe bending cylinder of high thrust, to steel
Box beam has side knock, has not only increased construction cost but also has reduced construction efficiency.
Summary of the invention
The present invention provides a kind of steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method,
Can not only carry out the guiding and limit of direction across bridge to the steel box-girder in incremental launching construction, and structure it is simple, it is safe and reliable, convenient for tool
There is level curve steel box-girder incremental launching construction.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of steel box-girder incremental launching construction direction across bridge double rollers guide position limiter, steel box-girder incremental launching construction direction across bridge double rollers guiding
Limiting device is symmetricly set on steel box-girder two sides comprising frame body, top-pushing mechanism and two adjustable guide wheels；Top-pushing mechanism setting exists
On the inside of frame body, for driving steel box-girder to vertically move, top-pushing mechanism includes pushing tow stringer, pushing tow cylinder and seat is mounted, and is limited
Mounting base is arranged on pushing tow stringer and has mounting groove, and pushing tow stringer is two I-beams arranged side by side, pushing tow cylinder one end position
In in the mounting groove that seat is mounted, the other end is connected as one with steel box-girder；Adjustable guide wheel prolongs vertical bridge to arrangement, sets side by side
It sets on frame body, each adjustable guide wheel includes idler wheel, turning rolls and two screw-nut components, and idler wheel is arranged in turning rolls
On, turning rolls is connected on frame body by screw-nut component.
The steel box-girder incremental launching construction direction across bridge double rollers guide position limiter preferred embodiment, frame body include the first brace,
Upright bar and the second brace, the first brace and the second brace are located at upright bar two sides, and first brace one end is connect with upright bar, the other end with
The connection of pushing tow stringer and second brace one end are connect with upright bar, and the other end is connect with crossbeam.
The steel box-girder incremental launching construction direction across bridge double rollers guide position limiter preferred embodiment, turning rolls include upper plate, under
In installation board ends, idler wheel connects turning rolls, screw-nut by pin shaft for plate and mounting plate, upper plate and the setting of lower plate parallel interval
The screw rod of component passes through upright bar and the screw of screw-nut component connects on a mounting board through pedestal.
It is a kind of to carry out steel box-girder incremental launching construction using the steel box-girder incremental launching construction direction across bridge double rollers guide position limiter
Method, comprising the following steps:
1) laying crossbeam is set up on the support of interim tubular pole；
2) top-pushing mechanism is laid on crossbeam；
3) upright bar 2 is arranged on crossbeam, and the first brace and the second brace are welded and fixed with crossbeam and pushing tow stringer respectively, and composition is steady
Solid triangular structure；
4) adjustable guide wheel is assembled into one, the screw-nut component of side is installed, positioning welding then is carried out to frame body；
5) setting-out is carried out according to steel box-girder level curve line style, measures the corresponding position of steel box-girder bottom edge Yu the device,
Screw rod length is adjusted according to this position, and is fixed screw rod position with screw, idler wheel outer rim is made to be bonded steel box-girder bottom edge；
6) when steel box-girder longitudinal direction pushing tow, control steel box-girder sets interior movement in two sides repacking, to realize level curve control.
The present invention has the advantages that
1, structure is simple, safe and reliable: generally tripod form, simple and stable structure, safe and reliable；
2, construction efficiency is high: limit guiding process is changed to rolling friction by traditional sliding friction, reduces the construction of pushing tow process
Resistance improves the construction efficiency of steel box-girder pushing installation；
3, side knock is small: lateral pushing need to be carried out with reaction frame and jack by being generally laterally adjusted to steel box-girder, construction
Horizontal force is big, causes to be mutated big stress to steel box-girder, the present apparatus can be such that steel box-girder realizes gradually during longitudinal pushing tow
Lateral adjustments can avoid traditional construction mode and adversely affect caused by steel box-girder itself；
4, be convenient for level curve incremental launching construction: the present apparatus is designed using double rollers, can more effectively be fitted construction level curve,
Be conducive to steel box-girder level curve incremental launching construction；
5, adaptability is high: the invention device is adapted to the incremental launching construction of different radius of horizontal curve steel box-girders.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is partial enlarged view one of the present invention；
Wherein, 1. second brace；2. upright bar；3. the first brace；4. screw rod；5. screw；6. turning rolls；7. pin shaft；8.
Idler wheel；9. pushing tow stringer；10. pushing tow cylinder；11. seat is mounted；I. frame body；II. top-pushing mechanism；III. adjustable to lead
Wheel；6-1. upper plate；6-2. lower plate；6-3. mounting plate.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
With reference to Fig. 1, a kind of steel box-girder incremental launching construction direction across bridge double rollers guide position limiter, steel box-girder incremental launching construction cross-bridges
Be symmetricly set on the two sides steel box-girder a to double rollers guide position limiter comprising frame body I, top-pushing mechanism II and more than one can
Adjust guide wheel III；Top-pushing mechanism II is arranged on the inside of frame body I, and for driving steel box-girder to vertically move, adjustable guide wheel III prolongs vertical
Bridge is disposed side by side on frame body I to arrangement, and each adjustable guide wheel includes idler wheel 8, turning rolls 6 and two screw-nut components,
Idler wheel 8 is arranged on turning rolls 6, and turning rolls 6 is connected on frame body I by screw-nut component.
In the present embodiment, top-pushing mechanism includes pushing tow stringer 9, pushing tow cylinder 10 and seat 11 is mounted, and seat 11 is mounted
It is welded on pushing tow stringer 9 and has mounting groove, pushing tow stringer 9 is two I-beams arranged side by side, and 10 one end of pushing tow cylinder is located at
It is mounted in the mounting groove of seat 11, the other end is connected as one with steel box-girder.
In the present embodiment, frame body includes the first brace 3, upright bar 2 and the second brace 1, the first brace 3 and the second brace 1
In 2 two sides of upright bar, 3 one end of the first brace is connect with upright bar 2, the other end connect with pushing tow stringer 9 and 1 one end of the second brace with
Upright bar 2 connects, and the other end is connect with crossbeam, and overall structure is triangle, is improved while keeping self structure stability
Lateral rigidity can be effective against the lateral force generated in steel box-girder incremental launching construction.
In the present embodiment, turning rolls includes upper plate 6-1, lower plate 6-2 and mounting plate 6-3, and upper plate 6-1 is parallel with lower plate 6-2
Be arranged at intervals on the both ends mounting plate 6-3, idler wheel 8 connects turning rolls 6 by pin shaft 7, mounting plate 6-3 connect simultaneously upper plate 6-1 with
Lower plate 6-2, the screw rod 4 of screw-nut component passes through upright bar and the screw 5 of screw-nut component is connected to mounting plate through pedestal 12
On, idler wheel 8 can rotate on pin shaft 7, for being oriented to and being limited to steel box-girder.
It is a kind of to carry out steel box-girder incremental launching construction using the steel box-girder incremental launching construction direction across bridge double rollers guide position limiter
Method, comprising the following steps:
1) it is set up on interim tubular pole support c and is laid with crossbeam b；
2) top-pushing mechanism is laid on crossbeam；
3) upright bar 2 is arranged on crossbeam, and the first brace 3 and the second brace 1 are welded and fixed with crossbeam and pushing tow stringer respectively, composition
Firm triangular structure；
4) adjustable guide wheel is assembled into one, the screw-nut component of side is installed, positioning welding then is carried out to frame body；
5) setting-out is carried out according to steel box-girder level curve line style, measures the corresponding position of steel box-girder bottom edge Yu the device,
Screw rod length is adjusted according to this position, and is fixed screw rod position with screw, 8 outer rim of idler wheel is made to be bonded steel box-girder bottom edge；
6) when steel box-girder longitudinal direction pushing tow, control steel box-girder sets interior movement in two sides repacking, to realize level curve control.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of steel box-girder incremental launching construction direction across bridge double rollers guide position limiter, it is characterised in that: steel box-girder incremental launching construction is horizontal
Bridge is symmetricly set on steel box-girder two sides to double rollers guide position limiter comprising frame body, top-pushing mechanism and two adjustable guide wheels；
Top-pushing mechanism is arranged on the inside of frame body, and for driving steel box-girder to vertically move, top-pushing mechanism includes pushing tow stringer (9), pushing tow cylinder
(10) and seat (11) are mounted, seat (11) is mounted and is arranged on pushing tow stringer (9) and there is mounting groove, pushing tow stringer
It (9) is two I-beams arranged side by side, pushing tow cylinder (10) one end is located in the mounting groove that seat (11) are mounted, the other end and steel
Box beam is connected as one；Adjustable guide wheel prolongs vertical bridge to arrangement, is disposed side by side on frame body, and each adjustable guide wheel includes idler wheel
(8), turning rolls (6) and two screw-nut components, idler wheel (8) are arranged on turning rolls (6), and turning rolls (6) passes through lead screw silk
Female component is connected on frame body.
2. steel box-girder incremental launching construction direction across bridge double rollers guide position limiter according to claim 1, it is characterised in that: frame body
Including the first brace (3), upright bar (2) and the second brace (1), the first brace (3) and the second brace (1) are located at upright bar (2) two sides,
First brace (3) one end is connect with upright bar (2), and the other end is connect with pushing tow stringer (9) and the second brace (1) one end and upright bar
(2) it connects, the other end is connect with crossbeam.
3. steel box-girder incremental launching construction direction across bridge double rollers guide position limiter according to claim 1, it is characterised in that: idler wheel
Frame includes upper plate, lower plate and mounting plate, and in installation board ends, idler wheel (8) passes through pin shaft (7) for upper plate and the setting of lower plate parallel interval
It connects turning rolls (6), the screw rod of screw-nut component passes through upright bar and the screw of screw-nut component is connected to installation through pedestal
On plate.
4. it is a kind of using any one of claims 1 to 33 steel box-girder incremental launching construction direction across bridge double rollers guide position limiter into
The method of row steel box-girder incremental launching construction, it is characterised in that the following steps are included:
1) laying crossbeam is set up on the support of interim tubular pole；
2) top-pushing mechanism is laid on crossbeam；
3) upright bar (2) is arranged on crossbeam, and the first brace (3) and the second brace (1) are solid with crossbeam and the welding of pushing tow stringer respectively
It is fixed, form firm triangular structure；
4) adjustable guide wheel is assembled into one, the screw-nut component of side is installed, positioning welding then is carried out to frame body；
5) setting-out is carried out according to steel box-girder level curve line style, measures the corresponding position of steel box-girder bottom edge Yu the device,
Screw rod length is adjusted according to this position, and is fixed screw rod position with screw, idler wheel (8) outer rim is made to be bonded steel box-girder bottom plate side
Edge；
6) when steel box-girder longitudinal direction pushing tow, control steel box-girder sets interior movement in two sides repacking, to realize level curve control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572530.6A CN110273380A (en) | 2019-06-28 | 2019-06-28 | Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572530.6A CN110273380A (en) | 2019-06-28 | 2019-06-28 | Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method |
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| Publication Number | Publication Date |
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| CN110273380A true CN110273380A (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910572530.6A Pending CN110273380A (en) | 2019-06-28 | 2019-06-28 | Steel box-girder incremental launching construction direction across bridge double rollers guide position limiter and push construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809532A (en) * | 2020-08-03 | 2020-10-23 | 中铁二十三局集团第二工程有限公司 | Construction method for controlling displacement of pushing temporary pier stud |
| CN116289631A (en) * | 2023-05-06 | 2023-06-23 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
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| JP2015169015A (en) * | 2014-03-07 | 2015-09-28 | 鹿島建設株式会社 | Sending-out method |
| CN207700059U (en) * | 2016-06-17 | 2018-08-07 | 贵州路桥集团有限公司 | Stride pushing tow deviation correcting device |
| CN207891753U (en) * | 2018-02-07 | 2018-09-21 | 陕西华山路桥集团有限公司 | A kind of bridge successively incremeantal launching method device |
| CN208803384U (en) * | 2018-06-08 | 2019-04-30 | 南京工大桥隧与轨道交通研究院有限公司 | A kind of Universal wheel type horizontal limit devices for the construction of bridge incremental launching method |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202116986U (en) * | 2011-05-25 | 2012-01-18 | 中铁电气化局集团有限公司 | Pushing beam guiding and deviation rectifying device |
| CN203498761U (en) * | 2013-09-16 | 2014-03-26 | 中铁十七局集团第二工程有限公司 | Lateral position-specified and deviation rectifying device for box girder pushing |
| JP2015169015A (en) * | 2014-03-07 | 2015-09-28 | 鹿島建設株式会社 | Sending-out method |
| CN207700059U (en) * | 2016-06-17 | 2018-08-07 | 贵州路桥集团有限公司 | Stride pushing tow deviation correcting device |
| CN207891753U (en) * | 2018-02-07 | 2018-09-21 | 陕西华山路桥集团有限公司 | A kind of bridge successively incremeantal launching method device |
| CN208803384U (en) * | 2018-06-08 | 2019-04-30 | 南京工大桥隧与轨道交通研究院有限公司 | A kind of Universal wheel type horizontal limit devices for the construction of bridge incremental launching method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809532A (en) * | 2020-08-03 | 2020-10-23 | 中铁二十三局集团第二工程有限公司 | Construction method for controlling displacement of pushing temporary pier stud |
| CN116289631A (en) * | 2023-05-06 | 2023-06-23 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
| CN116289631B (en) * | 2023-05-06 | 2023-08-11 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
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Application publication date: 20190924 |
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