CN109281252A - End bay girder steel pushing reaction apparatus and system - Google Patents
End bay girder steel pushing reaction apparatus and system Download PDFInfo
- Publication number
- CN109281252A CN109281252A CN201811223741.0A CN201811223741A CN109281252A CN 109281252 A CN109281252 A CN 109281252A CN 201811223741 A CN201811223741 A CN 201811223741A CN 109281252 A CN109281252 A CN 109281252A
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- Prior art keywords
- girder steel
- pushing reaction
- end bay
- leg
- buttress
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 68
- 239000003351 stiffener Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000725 suspension 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of end bay girder steel pushing reaction apparatus and system, wherein end bay girder steel pushing reaction device includes pushing reaction bracket and is fixed on jack of the pushing reaction bracket towards the side of girder steel, the pushing reaction bracket is equipped with horizontal extension and the first leg vertically to act on buttress away from the side of girder steel, and extends vertically and to horizontal force in the second supporting leg of buttress.End bay girder steel pushing reaction device of the invention can rationally convert stress, simple installation and will not destroy branch pier structure.
Description
[technical field]
The present invention relates to bridge construction technical field more particularly to a kind of end bay girder steel pushing reaction device and it is
System.
[background technique]
In traditional suspension cable or cable-stayed system bridge construction, main span steel girder segment is hung using cable (load) or erection crane
Girder steel vertical-lift is in place, and end bay girder steel need to carry out beam section using full framing is set up due to landform, navigation channel limitation etc.
Installation.Closure section is generally arranged between end bay and main span, since steel beam lifting installation operating space needs, end bay girder steel
It is needed when being installed on bracket to the pre- inclined tens centimeters of distances in access bridge side, after main span and end bay beam section are all installed, by end bay steel
Beam is segmented or whole to the mobile progress closing construction in main span direction, therefore is related to end bay integral pushing closing construction.
In end bay girder steel integral pushing closing construction, due to girder steel be linked to be it is whole cause end bay girder steel from a few kiloton that weighs,
Therefore horizontal force needed for its pushing tow is up to a hundred tonnes other.In the prior art, pushing reaction needs to be arranged in pier top firm enough
Built-in fitting, and on built-in fitting weld counter-force bracket, so that the horizontal force of end bay girder steel entirety is passed to bridge pier
Body.But there are many disadvantages for this pushing reaction device: first, pushing reaction bracket need to resist up to a hundred tons of horizontal force, this
The stability of pushing reaction bracket can be largely effected on.Second, by it is bulky, from great built-in fitting be embedded in pier shaft structure
In, mounting process is extremely difficult.Third, structure exists and conflicts and interfere between built-in fitting and pier shaft reinforcing bar, this can make pier shaft
At the local failure of structure, not only weaken the stability of buttress, and after incremental launching construction, also needs to be patcher to pier shaft
Make, working procedure is many and diverse.
Therefore, it is necessary to propose one kind rationally conversion stress, simple installation and the end bay girder steel that branch pier structure will not be destroyed
Pushing reaction device.
[summary of the invention]
The purpose of the present invention is to provide a kind of rationally conversion stress, simple installation and the end bays that will not destroy branch pier structure
Girder steel pushing reaction device.
Another object of the present invention is to provide a kind of end bay girder steel pushing reaction system.
To realize the purpose, the present invention adopts the following technical scheme:
A kind of end bay girder steel pushing reaction device, including pushing reaction bracket and pushing reaction bracket is fixed on towards girder steel
Side jack, the pushing reaction bracket is equipped with horizontal extension and vertically to act on buttress away from the side of girder steel
First leg, and it is vertical extend and to horizontal force in the second supporting leg of buttress.
Preferably, the bottom margin of second supporting leg towards girder steel side is equipped with solidity cushion block.
Preferably, diagonal brace is fixed between second supporting leg and the solidity cushion block.
Preferably, the bottom of the first leg is equipped with height adjustment device.
Preferably, the height adjustment device is the supporting block laid side by side along the direction perpendicular to the first leg.
Preferably, the one side that second supporting leg acts on buttress is equipped with cushion.
Preferably, the bottom of second supporting leg is flushed with buttress surface.
Preferably, the side of the first leg and the second supporting leg is equipped with ribbed stiffener.
A kind of end bay girder steel pushing reaction system uses end bay girder steel pushing reaction as described in any one of the above embodiments to fill
It sets.
Preferably, the end bay girder steel pushing reaction device acts at the top of the buttress equipped with staircase structural model, and described
Stage structure includes the horizontal plane and vertical plane being mutually connected vertically, and the first leg acts on the level from vertical direction
Face, second supporting leg is from horizontal direction against the vertical plane.
Compared with prior art, the present invention has following advantage:
1. end bay girder steel pushing reaction device of the invention is by being set as horizontal-extending first for pushing reaction bracket
Leg and the second supporting leg extended vertically, first leg are acted on vertically at the top of buttress, the second supporting leg horizontal force at the top of buttress,
The horizontal force of end bay girder steel is converted into the torque to buttress and is cancelled out each other, rationally turning for end bay girder steel horizontal force is realized
Change.
2. design feature of the end bay girder steel pushing reaction device based on first leg and the second supporting leg of the invention, in pushing tow
When construction, pushing reaction device need to be only directly placed above pier top, the buttress built-in fitting of horizontal shear is resisted without setting,
Enormously simplify working procedure.
3. end bay girder steel pushing reaction device of the invention construction when without be fixed on buttress built-in fitting on, avoid
In buttress construction built-in fitting is installed in advance, and does not also need to repair buttress after the completion of incremental launching construction, to reduce
Branch pier structure is hindered and damaged.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of an exemplary embodiments of end bay girder steel pushing reaction device of the present invention；
Fig. 2 is a kind of structural schematic diagram of another exemplary embodiments of end bay girder steel pushing reaction device of the present invention；
Fig. 3 is a kind of structural schematic diagram of another exemplary embodiments of end bay girder steel pushing reaction device 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.
In bridge construction technique, since general main bridge is different with access bridge superstructure height, buttress 3 is (referring to figure
3) step is designed to adapt to the beam of main, access bridge different height, illustrate this buttress 3 with staircase structural model 31.
Referring to Fig. 1 and Fig. 3, the present invention provides a kind of end bay girder steel pushing reaction device 1, end bay girder steel pushing reaction device
1 is suitable for the above-mentioned buttress 3 with staircase structural model 31, and end bay girder steel pushing reaction device 1 includes 10 He of pushing reaction bracket
It is fixed on jack 11 of the pushing reaction bracket 10 towards the side of girder steel 2, the pushing reaction bracket 10 deviates from the one of girder steel 2
Side is equipped with horizontal extension and the first leg 101 vertically to act on buttress 3, and it is vertical extend and to horizontal force in
Second supporting leg 102 of buttress 3.By the way that pushing reaction bracket 10 is set as horizontal-extending first leg 101 and is extended vertically
Second supporting leg 102, first leg 101 act on 3 top of buttress vertically, and 102 horizontal force of the second supporting leg, will in 3 top of buttress
The horizontal force of end bay girder steel 2 is converted into the torque to buttress 3 and cancels out each other, and realizes rationally turning for 2 horizontal force of end bay girder steel
Change.
Under normal circumstances, it is correspondingly provided with lip block 32 at the top of the corresponding buttress 3 in 2 lower section of girder steel, in conjunction with Fig. 2, in order to make
End bay girder steel pushing reaction device 1 is fixed on 3 top of buttress, and the bottom margin of second supporting leg 102 towards 2 side of girder steel is set
There is solidity cushion block 103, the solidity cushion block 103 is used to clog the gap between pushing reaction bracket 10 and lip block 32, protect
The relatively stable of 1 structure of end bay girder steel pushing reaction device is demonstrate,proved.Wherein, the solidity cushion block refers to larger using hardness such as steel
Material made of cushion block.Further, diagonal brace is fixed between second supporting leg 102 and the solidity cushion block 103
104, with the connection reinforced between the solidity cushion block 103 and the second supporting leg 102, prevent solidity cushion block 103 by level
Positional shift occurs after active force.
Preferably, the bottom of the first leg 101 is equipped with height adjustment device 105, and height adjustment device 105 is preferably
The supporting block laid side by side along the direction perpendicular to the first leg 101, such as drum steel.Since the setting of jack 11 is high
Degree requires more than the height of 2 bottom of girder steel, therefore the position that height adjustment device 105 makes end bay girder steel pushing reaction device 1 is arranged
Set it is adjustable, ensure that end bay girder steel pushing reaction device 1 have stronger adaptability, and be end bay girder steel pushing reaction device
The accuracy of 1 position provides flexible structure basis.The supporting block is arranged side by side along the direction perpendicular to the first leg 101
It lays, and adjacent supporting block is close to each other to guarantee that drum steel and the contact area at 3 top of buttress are sufficiently large.
The one side that second supporting leg 102 acts on buttress 3 is equipped with cushion 106, it is preferable that the cushion 106 can
To be the neonychium with buffer function such as rubber pad.Since the second supporting leg 102 bears to transmit end bay girder steel 2 from horizontal direction
Horizontal applied force, setting cushion 106 can buffer and spread the horizontal force that end bay girder steel 2 passes over, and protect coagulation
Native surface prevents 3 surface of buttress to be destroyed, 3 reparing process of buttress caused by saving because of 3 surface damage of buttress.
Preferably, the bottom of second supporting leg 102 is flushed with 3 surface of buttress, the bottom of second supporting leg 102 against
3 top of buttress, solidity cushion block 103 and second supporting leg 102 set on 102 bottom margin of the second supporting leg are resisted against jointly
3 top of buttress, to guarantee that the stress acting surface between end bay girder steel pushing reaction device 1 and buttress 3 is sufficiently large.Preferably, institute
It states first leg 101 and the second supporting leg 102 is rectangle, i.e., the contact of described first leg 101 and the second supporting leg 102 and buttress 3
Face is rectangle.Preferably, in order to mitigate the self weight of end bay girder steel pushing reaction device 1, to reduce the pressure to buttress 3, institute
Stating first leg 101 may be set to be other shapes, for example, the first leg 101 can be set to right-angled trapezium, described
A wherein right-angle side for one supporting leg 101 is against 3 top of buttress.
Preferably, in order to guarantee the rigidity of first leg 101 and the second supporting leg 102, the first leg 101 and second
Ribbed stiffener can also be arranged in the side of leg 102.For example, 101 side of first leg sets the first criss-cross ribbed stiffener
1011, uniform intervals lay the second ribbed stiffener 1021 to second supporting leg 102 along the vertical direction.
The present invention also provides a kind of end bay girder steel pushing reaction systems, use end bay girder steel as described in any one of the above embodiments
Pushing reaction device 1.
Preferably, the end bay girder steel pushing reaction device 1 acts on 3 top of buttress equipped with staircase structural model 31, institute
Stating step structure includes the horizontal plane and vertical plane being mutually connected vertically, and the first leg 101 acts on institute from vertical direction
Horizontal plane is stated, second supporting leg 102 is from horizontal direction against the vertical plane.
Design feature of the end bay girder steel pushing reaction device 1 based on first leg 101 and the second supporting leg 102 of the invention,
In incremental launching construction, pushing reaction device 1 need to be only directly placed above pier top, the buttress of horizontal shear is resisted without setting
Built-in fitting enormously simplifies working procedure, in addition, end bay girder steel pushing reaction device 1 of the invention is in construction without fixing
On the built-in fitting of buttress 3, avoids and built-in fitting is installed in advance in buttress construction, and reduce during incremental launching construction to branch
Pier structure is hindered and damaged, and does not also need to repair buttress after the completion of construction, so as to reduce construction period.
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 end bay girder steel pushing reaction device, it is characterised in that: including pushing reaction bracket and be fixed on pushing reaction ox
Leg is towards the jack of the side of girder steel, and the pushing reaction bracket is away from the side of girder steel equipped with horizontal extension and to vertical
The first leg of buttress is acted on, and is extended vertically and to horizontal force in the second supporting leg of buttress.
2. pushing reaction device according to claim 1, it is characterised in that: bottom of second supporting leg towards girder steel side
Portion edge is equipped with solidity cushion block.
3. end bay girder steel pushing reaction device according to claim 2, it is characterised in that: second supporting leg with it is described solid
Diagonal brace is fixed between property cushion block.
4. end bay girder steel pushing reaction device according to claim 1, it is characterised in that: the bottom of the first leg is set
There is height adjustment device.
5. end bay girder steel pushing reaction device according to claim 4, it is characterised in that: the height adjustment device is edge
The supporting block laid side by side perpendicular to the direction of the first leg.
6. end bay girder steel pushing reaction device according to claim 1, it is characterised in that: second supporting leg acts on branch
The one side of pier is equipped with cushion.
7. end bay girder steel pushing reaction device according to claim 1, it is characterised in that: the bottom of second supporting leg with
Buttress surface flushes.
8. end bay girder steel pushing reaction device according to claim 1, it is characterised in that: the first leg and second
The side of leg is equipped with ribbed stiffener.
9. a kind of end bay girder steel pushing reaction system, which is characterized in that it is used such as side of any of claims 1-8
Across girder steel pushing reaction device.
10. end bay girder steel pushing reaction system according to claim 9, it is characterised in that: the end bay girder steel pushing tow is anti-
Power device acts at the top of the buttress equipped with staircase structural model, and the step structure includes the horizontal plane being mutually connected vertically and erects
It faces directly, the first leg acts on the horizontal plane from vertical direction, and second supporting leg is from horizontal direction against described perpendicular
It faces directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223741.0A CN109281252B (en) | 2018-10-19 | 2018-10-19 | Side span steel beam pushing counterforce device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223741.0A CN109281252B (en) | 2018-10-19 | 2018-10-19 | Side span steel beam pushing counterforce device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281252A true CN109281252A (en) | 2019-01-29 |
| CN109281252B CN109281252B (en) | 2023-10-24 |
Family
ID=65177531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811223741.0A Active CN109281252B (en) | 2018-10-19 | 2018-10-19 | Side span steel beam pushing counterforce device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281252B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266573A (en) * | 2013-06-17 | 2013-08-28 | 中铁山桥集团有限公司 | Self-anchored suspension bridge steel box girder three-slideway synchronous jacking construction method |
| CN105568866A (en) * | 2015-12-31 | 2016-05-11 | 中铁二十局集团第六工程有限公司 | Incremental launching construction method for large-span steel box girder spanning constructed road |
| CN105970830A (en) * | 2016-04-12 | 2016-09-28 | 中交第二航务工程局有限公司 | Main beam side-span closure construction method for bond beam cable-stayed bridge |
| CN205709572U (en) * | 2016-04-22 | 2016-11-23 | 中交第二航务工程局有限公司 | The main load-carrying members of adjustable of deck erection gantry |
| CN106522112A (en) * | 2016-12-30 | 2017-03-22 | 中交路桥华南工程有限公司 | Cable-stayed bridge side span beam section erecting system and method thereof |
| KR20170093743A (en) * | 2016-02-05 | 2017-08-16 | 전종환 | Beam bridge having beam support block and its construction method |
| CN209397497U (en) * | 2018-10-19 | 2019-09-17 | 中交路桥华南工程有限公司 | End bay girder steel pushing reaction apparatus and system |
-
2018
- 2018-10-19 CN CN201811223741.0A patent/CN109281252B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266573A (en) * | 2013-06-17 | 2013-08-28 | 中铁山桥集团有限公司 | Self-anchored suspension bridge steel box girder three-slideway synchronous jacking construction method |
| CN105568866A (en) * | 2015-12-31 | 2016-05-11 | 中铁二十局集团第六工程有限公司 | Incremental launching construction method for large-span steel box girder spanning constructed road |
| KR20170093743A (en) * | 2016-02-05 | 2017-08-16 | 전종환 | Beam bridge having beam support block and its construction method |
| CN105970830A (en) * | 2016-04-12 | 2016-09-28 | 中交第二航务工程局有限公司 | Main beam side-span closure construction method for bond beam cable-stayed bridge |
| CN205709572U (en) * | 2016-04-22 | 2016-11-23 | 中交第二航务工程局有限公司 | The main load-carrying members of adjustable of deck erection gantry |
| CN106522112A (en) * | 2016-12-30 | 2017-03-22 | 中交路桥华南工程有限公司 | Cable-stayed bridge side span beam section erecting system and method thereof |
| CN209397497U (en) * | 2018-10-19 | 2019-09-17 | 中交路桥华南工程有限公司 | End bay girder steel pushing reaction apparatus and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109281252B (en) | 2023-10-24 |
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