CN109281255A - Girder steel slippage bracket and system - Google Patents
Girder steel slippage bracket and system Download PDFInfo
- Publication number
- CN109281255A CN109281255A CN201811261578.7A CN201811261578A CN109281255A CN 109281255 A CN109281255 A CN 109281255A CN 201811261578 A CN201811261578 A CN 201811261578A CN 109281255 A CN109281255 A CN 109281255A
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- China
- Prior art keywords
- girder steel
- sliding
- sliding slot
- way wheel
- girder
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of girder steel slippage bracket and system, wherein girder steel slippage bracket includes the steel pipe post laid and be arranged side by side along the direction of girder steel sliding, the bearing beam for being vertical at the steel pipe post top and extending along girder steel glide direction, the spandrel girder being across above the bearing beam and is perpendicularly fixed at the slipway beam that above the spandrel girder and lengthwise extends, and is set as the girder steel sliding rail for supplying the girder steel to slide at the top of the slipway beam.Girder steel slippage bracket of the present invention has centre of gravity and support is firm.
Description
[technical field]
The present invention relates to bridge construction technical field more particularly to a kind of girder steel slippage bracket and systems.
[background technique]
It is more and more applied in Bridges in Our Country construction into girder steel over year, since operation side limitation etc. can not
The installation of girder steel is carried out using conventional Hoisting Program, therefore the installation of girder steel mostly uses the segmented sliding installation of slide device just
Position, slide device bottom are supported by slippage bracket.
Existing moving support system is using shellfish thunder as the main load bearing system of bracket.However, using shellfish thunder as main load-bearing system
System, there are many disadvantages.Since shellfish thunder shear resistance is poor, need to be arranged multiple groups Bailey beam below unilateral slideway, in order to by girder steel
Local support counter-force in slipping is evenly transferred on multiple groups shellfish thunder, is also needed to be arranged distribution beam above shellfish thunder and is carried out part
The distribution and transmitting of stress.Entirety is got off, and traditional slippage bracket system includes at least column, spandrel girder, Bei Lei from bottom to top
Beam, distribution beam and slideway, the structure of such multilayer cause the center of gravity of slippage bracket higher.The center of gravity of slippage bracket is excessively high, can drop
The stability of low slippage bracket transverse direction, is unfavorable for steadily sliding, is also unfavorable for construction safety.
Therefore, it is necessary to provide a kind of centre of gravity and the firm girder steel slippage bracket of support.
[summary of the invention]
The purpose of the present invention is to provide a kind of centre of gravity and support firm girder steel slippage bracket.
To realize the purpose, the present invention adopts the following technical scheme:
A kind of girder steel slippage bracket, including laying and steel pipe post arranged side by side, vertically setting along the direction that girder steel slides
The bearing beam that extends at the top of the steel pipe post and along girder steel glide direction, the spandrel girder being across above the bearing beam and
It is perpendicularly fixed at the slipway beam that above the spandrel girder and lengthwise extends, is set as at the top of the slipway beam for girder steel sliding
Girder steel sliding rail.
Preferably, it is fixedly connected between the adjacent steel pipe post by truss.
Preferably, operating platform identical with its extending direction, the operating platform edge are additionally provided with above the bearing beam
The two sides of its extending direction are equipped with guardrail.
Preferably, by being set to, the diagonal brace of the slipway beam two sides is fixed to be connected between the slipway beam and the spandrel girder
It connects.
Preferably, the bearing beam is connect with the steel pipe post junction by the built-in fitting inside the steel pipe post.
The present invention also provides a kind of girder steel sliding systems, use girder steel slippage bracket as described in any one of the above embodiments.
It preferably, further include the girder steel slide device being set to above the slip support abutment, the girder steel slide device includes
The sliding slot side plate at lengthwise edge, the sliding slot side plate will be impaled at the top of the slipway beam in institute at the top of the slipway beam
The sliding slot slid for the girder steel is formed on the top for stating slipway beam；
Sliding base in the sliding slot and the running gear on the sliding base, the running gear include branch
Stake pad block and one-way wheel set on the lip block side, the lip block is along two sides of the sliding slot extending direction
It is respectively equipped with the first one-way wheel and the second one-way wheel；The lip block is along two sides perpendicular to the sliding slot extending direction
It is respectively equipped with third one-way wheel and the 4th one-way wheel；
First one-way wheel, the second one-way wheel shape and the sliding slot match, existed with limiting the running gear
One direction sliding is carried out in the range of the sliding slot.
Preferably, the sliding base include the sliding slot bottom plate being successively laid with straight up from the sliding slot bottom, it is stainless
Steel plate and tetrafluoro slide plate.
Preferably, the one-way wheel includes the fixed block connecting with the lip block, turn on the fixed block
Axis, the unilateral bearing being sheathed in the shaft and the wheel body being connect with the shaft.
Preferably, the sliding slot that the sliding slot side plate surrounds is in U-shape, and the edge of the sliding slot side plate prolongs to level on the inside of sliding slot
It stretches to form limited block, be offered in the horizontal direction on the fixed block of first one-way wheel and the second one-way wheel and the limited block
The groove that matches of shape so that the running gear is sheathed in the sliding slot.
Compared with prior art, the present invention has following advantage:
1. in girder steel slippage bracket of the invention, by changing using slipway beam as slippage bracket upper part bearing structure
Structure of the conventionally employed multiple groups Bailey beam as load bearing system, while also eliminating the distribution beam knot that need to be arranged in above Bailey beam
Structure not only simplifies the design of slippage bracket structure, saves materials to reduce the number of plies of slippage bracket superstructure beam, and
Make each member stress definitely, and greatly reduces the center of gravity of slippage bracket, so that slide device is closer to cradle top,
Guarantee the stabilization of sliding system, provides brace foundation for the sliding of stablizing of girder steel.
2. the set-up mode of operating platform flushes its slipway beam in girder steel slippage bracket of the invention, convenient at any time
Slide device is adjusted, adequately and reasonably construction operation space is provided.
3. in girder steel sliding system of the invention, slide device is cooperated by the structure of its running gear and sliding slot,
And running gear is additionally provided with one-way wheel, and slide device is slid straightly along one direction, ensure that slipping
It is straight without deviation, no longer need to carry out glide direction correction in the construction process, substantially increase construction efficiency.
4. in girder steel sliding system of the invention, the sliding slot bottom plate that is successively laid with straight up from the sliding slot bottom, no
Become rusty steel plate and tetrafluoro slide plate, and the sliding base of three's composition has stronger lateral rigidity, provides for sliding straightly for girder steel
Good track foundation.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of an exemplary embodiments of girder steel slippage bracket of the present invention；
Fig. 2 is a kind of structural schematic diagram of an exemplary embodiments of girder steel slippage bracket of the present invention；
Fig. 3 is the structural schematic diagram of an exemplary embodiments of slide device in a kind of girder steel sliding system of the present invention；
Fig. 4 is the structural schematic diagram of another exemplary embodiments of slide device in a kind of girder steel sliding system of the present invention.
[specific embodiment]
The present invention is further described with exemplary embodiment with reference to the accompanying drawing, wherein identical label in attached drawing
All refer to identical component.In addition, if the detailed description of known technology is for showing the invention is characterized in that unnecessary
, then it omits it.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of girder steel slippage bracket 10 comprising along the side of girder steel sliding
To the steel pipe post 11 laid and be arranged side by side, it is vertical at 11 top of steel pipe post and along the extension of girder steel glide direction
Bearing beam 12, the spandrel girder 13 for being across 12 top of the bearing beam and it is perpendicularly fixed at 13 top of spandrel girder and lengthwise prolongs
The slipway beam 21 stretched is set as the girder steel sliding rail 15 for girder steel sliding at the top of the slipway beam 21.Implement in the present invention
In the girder steel slippage bracket of example, slipway beam 21 is used as 10 upper part bearing structure of slippage bracket simultaneously.Specifically, to make slipway beam 21
Meet force request, slipway beam 21 is constituted using the fashioned iron of big model, the additional ribbed stiffener of fashioned iron.In an embodiment of the present invention,
Slipway beam 21 is formed using the fashioned iron chain intermittent weld of two HN900 × 300.
Specifically, it is fixedly connected between the adjacent steel pipe post 11 by truss.The bearing beam 12 and the steel pipe are vertical
11 junction of column passes through the built-in fitting connection inside the steel pipe post 11.Lead between the slipway beam 21 and the spandrel girder 13
The diagonal brace 17 set on 21 two sides of slipway beam is crossed to be fixedly connected.
Preferably, the top of the bearing beam 12 is additionally provided with operating platform 16 identical with its extending direction, and the operation is flat
Platform 16 is supported in the top of the bearing beam 12, and the two sides that the operating platform 16 extends along direction are equipped with guardrail 161.Operation is flat
The set-up mode of platform 16 flushes its slipway beam 21, convenient for adjusting slide device 20 at any time, provides and adequately and reasonably constructs
Operating space.
In girder steel slippage bracket of the invention, by regarding the slipway beam 21 of big model as 10 top load-bearing knot of slippage bracket
Structure changes structure of the conventionally employed multiple groups Bailey beam as load bearing system, while also eliminating and need to be arranged in above Bailey beam
Distribution girder construction not only simplify the design of 10 structure of slippage bracket to reduce the number of plies of 10 superstructure beam of slippage bracket,
Materials are saved, make each member stress definitely, and greatly reduce the center of gravity of slippage bracket 10, so that slide device 20
Closer to cradle top, guarantee the stabilization of sliding system, provides brace foundation for the sliding of stablizing of girder steel.In conjunction with can be along folk prescription
To being slid straightly and the straight slide device 20 without deviation of slipping, so that no longer being slided in work progress
Direction correcting is moved, construction efficiency is substantially increased.
The embodiment of the present invention also provides a kind of girder steel sliding system, and which employs above-mentioned girder steel slippage brackets 10.Referring to
Fig. 3, girder steel sliding system further include girder steel slide device 20, the slipway beam 21 of 20 lengthwise of girder steel slide device and are set to institute
State the sliding slot side plate 22 at 21 top lengthwise edge of slipway beam, the sliding slot side plate 22 by the top of the slipway beam 21 impale with
The sliding slot 23 slid for girder steel is formed on the top of the slipway beam 21.It is equipped with sliding base 24 in the sliding slot 23 and is set to described
Running gear 25 on sliding base 24, the running gear 25 is including lip block 251 and is set to 251 side of lip block
The one-way wheel 252 in face, the lip block 251 are respectively equipped with the first one-way wheel along two sides of 23 extending direction of sliding slot
2521 and second one-way wheel 2522；In conjunction with Fig. 4, the lip block 251 is along two perpendicular to 23 extending direction of sliding slot
Side is respectively equipped with third one-way wheel 2523 and the 4th one-way wheel 2524；First one-way wheel 2521, the second one-way wheel 2522
Shape match with the sliding slot 23, it is sliding that one direction is carried out to limit the running gear 25 in the range of sliding slot 23
It moves.
Specifically, the one-way wheel 252 includes the fixed block 2520 connecting with the lip block 251, set on described solid
Determine the shaft (not shown) on block 2520, the unilateral bearing (not shown) being sheathed in the shaft and connects with the shaft
The wheel body (not shown) connect.The one-way wheel 252, which is not only fixed on lip block 251 by fixed block 2520, realizes that it is solid
It is fixed, and pass through the matching that fixed block 2520 is also able to achieve one-way wheel 252 Yu sliding slot 23.
Specifically, the sliding slot 23 that the sliding slot side plate 22 surrounds is in U-shape, and the edge of the sliding slot side plate 22 is into sliding slot 23
It is opened in the horizontal direction on the fixed block of side horizontal extension formation limited block, first one-way wheel 2521 and the second one-way wheel 2522
Equipped with the groove 25201 that the shape with the limited block matches, so that the running gear 25 is sheathed in the sliding slot 23.
Preferably, the groove 25201 is set to the middle part of the fixed block, and the groove 25201 cooperates with 23 side of sliding slot to be made
The fixed block is at least partly arranged in the sliding slot 23.First one-way wheel 2521 and the second one-way wheel 2522 and sliding slot 23
Mutual cooperation formula structure prevents running gear 25 from derailing so that being closely connected between running gear 25 and sliding slot 23, guarantees
Running gear 25 can steadily be slid on the slide rail.Simultaneously, additionally it is possible to it is straight to guarantee that slide device 20 is carried out along one direction
Line sliding, ensure that the straight without deviation of slipping, no longer needs to carry out glide direction correction in the construction process, significantly
Improve construction efficiency.
The sliding base 24 includes the sliding slot bottom plate 241 being successively laid with straight up from 23 bottom of sliding slot, stainless
Steel plate 242 and tetrafluoro slide plate 243.The sliding base 24 of sliding slot bottom plate 241, stainless steel plate 242 and 243 three of tetrafluoro slide plate composition
With stronger lateral rigidity, good track foundation can be provided for sliding straightly for girder steel.Further, the supporting pad
251 top of block can also be laid with rubber slab with girder steel contact position, with buffering and dispersed steel beam effect on lip block 251
Power.
Girder steel sliding system of the present invention is that slide device 20 provides power by traction device or thrustor, realizes girder steel
Sliding.
Girder steel sliding system of the present invention can be carried out girder steel along one direction straight by slide device 20 and slippage bracket 10
Line sliding and slipping it is straight without deviation, no longer need to carry out glide direction correction in the construction process, greatly improve
Construction efficiency；Meanwhile 10 center of gravity of slippage bracket is low, provides brace foundation for the sliding of stablizing of girder steel.
Although having been illustrated with some exemplary embodiments of the invention above, those skilled in the art will be managed
Solution, in the case where not departing from the principle of the present invention or spirit, can make a change these exemplary embodiments, of the invention
Range is defined by the claims and their equivalents.
Claims (10)
1. a kind of girder steel slippage bracket, it is characterised in that: including being laid along the direction that girder steel slides and steel pipe arranged side by side is vertical
Column, is across holding above the bearing beam at the bearing beam for being vertical at the steel pipe post top and extending along girder steel glide direction
Weight beam and the slipway beam for being perpendicularly fixed at the spandrel girder top and lengthwise extension, the slipway beam top are set as described
The girder steel sliding rail of girder steel sliding.
2. girder steel slippage bracket according to claim 1, it is characterised in that: pass through truss between the adjacent steel pipe post
It is fixedly connected.
3. girder steel slippage bracket according to claim 1, it is characterised in that: be additionally provided with above the bearing beam and extend with it
The identical operating platform in direction, the two sides that the operating platform extends along direction are equipped with guardrail.
4. girder steel slippage bracket according to claim 1, it is characterised in that: lead between the slipway beam and the spandrel girder
The diagonal brace set on the slipway beam two sides is crossed to be fixedly connected.
5. girder steel slippage bracket according to claim 1, it is characterised in that: the bearing beam and the steel pipe post junction
It is connected by the built-in fitting inside the steel pipe post.
6. a kind of girder steel sliding system, which is characterized in that it uses girder steel sliding branch as described in any one in claim 1-5
Frame.
7. girder steel sliding system according to claim 6, it is characterised in that: further include being set to above the slip support abutment
Girder steel slide device, the girder steel slide device include the sliding slot side plate at the lengthwise edge at the top of the slipway beam, the cunning
Slot side plate will be impaled at the top of the slipway beam to form the sliding slot for girder steel sliding at the top of the slipway beam；
Sliding base in the sliding slot and the running gear on the sliding base, the running gear includes supporting pad
Block and one-way wheel set on the lip block side, the lip block are distinguished along two sides of the sliding slot extending direction
Equipped with the first one-way wheel and the second one-way wheel；The lip block is distinguished along two sides perpendicular to the sliding slot extending direction
Equipped with third one-way wheel and the 4th one-way wheel；
First one-way wheel, the second one-way wheel shape and the sliding slot match, to limit the running gear described
One direction sliding is carried out in the range of sliding slot.
8. girder steel sliding system according to claim 7, it is characterised in that: the sliding base includes from the sliding slot bottom
Sliding slot bottom plate, stainless steel plate and the tetrafluoro slide plate that portion is successively laid with straight up.
9. girder steel sliding system according to claim 8, it is characterised in that: the one-way wheel includes and the lip block
The fixed block of connection, the shaft on the fixed block, the unilateral bearing being sheathed in the shaft and with the shaft
The wheel body of connection.
10. girder steel sliding system according to claim 9, it is characterised in that: the sliding slot that the sliding slot side plate surrounds is in U
The edge of shape, the sliding slot side plate forms limited block, first one-way wheel and the second one-way wheel to horizontal extension on the inside of sliding slot
Fixed block on offer the groove to match with the shape of the limited block in the horizontal direction so that the running gear is arranged
In in the sliding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811261578.7A CN109281255B (en) | 2018-10-26 | 2018-10-26 | Steel beam sliding support and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811261578.7A CN109281255B (en) | 2018-10-26 | 2018-10-26 | Steel beam sliding support and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281255A true CN109281255A (en) | 2019-01-29 |
| CN109281255B CN109281255B (en) | 2023-10-20 |
Family
ID=65177523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811261578.7A Active CN109281255B (en) | 2018-10-26 | 2018-10-26 | Steel beam sliding support and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535158A (en) * | 2020-05-14 | 2020-08-14 | 中国五冶集团有限公司 | Temporary buttress for installing box girder pushing equipment and construction method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201058968Y (en) * | 2007-06-26 | 2008-05-14 | 中铁一局集团有限公司新运工程公司 | Electric track type sliding beam apparatus for erection of railway bridge |
| CN201560397U (en) * | 2009-12-15 | 2010-08-25 | 中交路桥华北工程有限公司 | Whole support for steel box girder precise location installation |
| CN103669216A (en) * | 2013-11-21 | 2014-03-26 | 中建三局建设工程股份有限公司 | Steel box girder scattered-splicing sliding device and installation method |
| CN203546610U (en) * | 2013-10-22 | 2014-04-16 | 中铁大桥局集团第四工程有限公司 | Slipping landing system for segmental steel box girders |
| CN105350459A (en) * | 2015-11-20 | 2016-02-24 | 中建交通建设集团有限公司 | Large steel beam gliding device and construction method thereof |
| CN106223203A (en) * | 2016-08-26 | 2016-12-14 | 中铁四局集团第二工程有限公司 | Steel girder erection support and using method thereof |
| CN205891817U (en) * | 2016-07-22 | 2017-01-18 | 中建八局第三建设有限公司 | Building rubbish pond device that all steel system is closed and ceiling can open and shut |
| CN106939707A (en) * | 2017-03-31 | 2017-07-11 | 中冶建工集团有限公司 | A kind of restricted clearance large-scale steel structure supporting platform from method for improving |
| CN107227862A (en) * | 2017-07-12 | 2017-10-03 | 叶长青 | The gliding construction method of building |
| CN206986749U (en) * | 2017-08-02 | 2018-02-09 | 云南公投建设集团第六工程有限公司 | Platform for lining available for Large-span Steel Box Beam construction |
| CN209584843U (en) * | 2018-10-26 | 2019-11-05 | 中交路桥华南工程有限公司 | Girder steel slippage bracket and system |
-
2018
- 2018-10-26 CN CN201811261578.7A patent/CN109281255B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201058968Y (en) * | 2007-06-26 | 2008-05-14 | 中铁一局集团有限公司新运工程公司 | Electric track type sliding beam apparatus for erection of railway bridge |
| CN201560397U (en) * | 2009-12-15 | 2010-08-25 | 中交路桥华北工程有限公司 | Whole support for steel box girder precise location installation |
| CN203546610U (en) * | 2013-10-22 | 2014-04-16 | 中铁大桥局集团第四工程有限公司 | Slipping landing system for segmental steel box girders |
| CN103669216A (en) * | 2013-11-21 | 2014-03-26 | 中建三局建设工程股份有限公司 | Steel box girder scattered-splicing sliding device and installation method |
| CN105350459A (en) * | 2015-11-20 | 2016-02-24 | 中建交通建设集团有限公司 | Large steel beam gliding device and construction method thereof |
| CN205891817U (en) * | 2016-07-22 | 2017-01-18 | 中建八局第三建设有限公司 | Building rubbish pond device that all steel system is closed and ceiling can open and shut |
| CN106223203A (en) * | 2016-08-26 | 2016-12-14 | 中铁四局集团第二工程有限公司 | Steel girder erection support and using method thereof |
| CN106939707A (en) * | 2017-03-31 | 2017-07-11 | 中冶建工集团有限公司 | A kind of restricted clearance large-scale steel structure supporting platform from method for improving |
| CN107227862A (en) * | 2017-07-12 | 2017-10-03 | 叶长青 | The gliding construction method of building |
| CN206986749U (en) * | 2017-08-02 | 2018-02-09 | 云南公投建设集团第六工程有限公司 | Platform for lining available for Large-span Steel Box Beam construction |
| CN209584843U (en) * | 2018-10-26 | 2019-11-05 | 中交路桥华南工程有限公司 | Girder steel slippage bracket and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535158A (en) * | 2020-05-14 | 2020-08-14 | 中国五冶集团有限公司 | Temporary buttress for installing box girder pushing equipment and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109281255B (en) | 2023-10-20 |
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