CN207974023U - Incremental launching construction by multipoint jacking device of the multi-joint multi-span steel beam based on independent non-rigid bridge pier - Google Patents
Incremental launching construction by multipoint jacking device of the multi-joint multi-span steel beam based on independent non-rigid bridge pier Download PDFInfo
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- CN207974023U CN207974023U CN201721610625.5U CN201721610625U CN207974023U CN 207974023 U CN207974023 U CN 207974023U CN 201721610625 U CN201721610625 U CN 201721610625U CN 207974023 U CN207974023 U CN 207974023U
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- bridge pier
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- hydraulic jack
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Abstract
The utility model discloses a kind of incremental launching construction by multipoint jacking device of multi-joint multi-span steel beam based on independent non-rigid bridge pier, one hydraulic jack pushing unit is set on each bridge pier, there are one successively incremeantal launching method slide constructions for setting at hydraulic jack pushing unit, hydraulic jack pushing unit connects girder steel with successively incremeantal launching method sliding equipment by pushing reaction track, pushing reaction track is along bridge to arrangement, it is provided with plug pin system between hydraulic jack pushing unit and pushing reaction track, displacement of bridge pier range-measurement system is provided between successively incremeantal launching method slide construction and bridge pier；The beneficial effects of the utility model：Each standing pier, which can be controlled, to be allowed to synchronize pushing tow within the scope of offset deviation value, to ensure that bridge pier is not destroyed by jacking force, and improves girder steel construction quality and speed.
Description
Technical field
The utility model is related to technical field of bridge construction, it particularly relates to which a kind of multi-joint multi-span steel beam is based on independently
The incremental launching construction by multipoint jacking device of non-rigid bridge pier.
Background technology
With the enlargement of China's infrastructure construction, need the project ambient enviroment built increasingly complicated, especially across
The bridge girder steel of navigation channel, highway, existing railway line etc. is constructed, and in order to not influence former facility operation and ensures security needs,
Do not allow to use free cantilever erection technique, segment lifting that heavy mechanical equipment is needed to be transported and lifted, and existing continuous thousand
Cooperation steel hinge line in jin top draws (notification number CN101831874A and CN102359071A), and each pushing tow point is both needed to setting slideway,
And since horizontal reacting force is larger, bridge pier need to be carried out reinforce or continuous jack is directly fixed on slideway front end, separately due to
The natural resiliency modulus feature and steel hinge line quantity of steel hinge line are more, each continuous jack displacement for acquiring and controlling in system
It is transmitted by the inequality elastic elongation factor of steel hinge line, the effect of synchronous push is not achieved in practice of construction at all.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes a kind of multi-joint multi-span steel beams based on independent non-
The incremental launching construction by multipoint jacking device of Rigid Pier, can solve defect existing in the prior art.
To realize the above-mentioned technical purpose, the technical solution of the utility model is realized in：
A kind of incremental launching construction by multipoint jacking device of multi-joint multi-span steel beam based on independent non-rigid bridge pier is arranged one on each bridge pier
A hydraulic jack pushing unit, there are one successively incremeantal launching method slide constructions for setting at the hydraulic jack pushing unit, described
Hydraulic jack pushing unit connects girder steel, the pushing reaction track with successively incremeantal launching method sliding equipment by pushing reaction track
Along bridge to arrangement, plug pin system is provided between the hydraulic jack pushing unit and the pushing reaction track, it is described
Displacement of bridge pier range-measurement system is provided between successively incremeantal launching method slide construction and bridge pier；
Each hydraulic jack pushing unit is communicated to connect there are one hydraulic station, and each hydraulic station communicates to connect
There are one local electronic control unit system, each local electronic control unit system communication is connected with main electronic control unit system and corresponding
Displacement of bridge pier range-measurement system.
Further, the communication terminal of the main electronic control unit system connects the communication terminal of each local electronic control unit system, respectively
The hydraulic control signal output end of local electronic control unit system connects corresponding hydraulic station control signal input, the hydraulic station
The corresponding local electronic control unit system of status signal output connection hydraulic station state signal input terminal, each displacement of bridge pier ranging
The jack displacement signal input terminal of the corresponding local electronic control unit system of signal output end connection of system.
The beneficial effects of the utility model：The steel girder erection under complex environment across navigation channel, railway, highway can be achieved to ask
Topic；The thrustor being arranged on multiple bridge piers can be controlled simultaneously, reinforcement protection need not be carried out to bridge pier, and by right
The real-time monitoring of each bridge pier can ensure that bridge pier is not damaged, and compared with prior art, this scheme passes through the jacking force to pipe bending cylinder
Comprehensive Control is carried out with pushing tow speed, is the operating mode for being truly realized girder steel incremental launching construction by multipoint jacking, keeps supporting point horizontal force close
It is 0, improves the construction quality and speed of girder steel, eliminates slideway, Bridge Pier reinforcement, solve pushing tow horizontal reacting force
To the damage risk of bridge pier, under the guiding role of horizontal reacting force track, pushing tow, which also ensure that, will not occur lateral shift.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is that multiple spot of the multi-joint multi-span steel beam based on independent non-rigid bridge pier according to the utility model embodiment is same
Walk the fitting arrangement of thrustor；
Fig. 2 is enlarged diagram at M in Fig. 1；
Fig. 3 is Multipoint synchronous top of the multi-joint multi-span steel beam based on independent non-rigid bridge pier described in the utility model embodiment
The control principle drawing of pushing device.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the range of the utility model protection.
As shown in Figs. 1-3,1. a kind of multi-joint multi-span steel beams according to the utility model embodiment are non-just based on independence
Property bridge pier incremental launching construction by multipoint jacking device, a hydraulic jack pushing unit 3, the hydraulic jack are set on each bridge pier 1
Pushing up setting at pushing unit 3, there are one successively incremeantal launching method slide construction 4, the hydraulic jack pushing unit 3 and successively incremeantal launching methods to slide
Motivation structure 4 connects girder steel 2 by pushing reaction track 6, and the pushing reaction track 6 is along bridge to arrangement, the hydraulic jack
Plug pin system 5, the successively incremeantal launching method slide construction 4 and bridge pier are provided between pushing unit 3 and the pushing reaction track 6
Between be provided with displacement of bridge pier range-measurement system 7；Each hydraulic jack pushing unit 3 is communicated to connect there are one hydraulic station 8,
Each hydraulic station 8 communicates to connect that there are one local electronic control unit system 9, each local 9 communication links of electronic control unit system
It is connected to main electronic control unit system 10 and corresponding displacement of bridge pier range-measurement system 7.
Wherein, the communication terminal of the main electronic control unit system 10 connects the communication terminal of each local electronic control unit system 9, each
The hydraulic control signal output end of ground electronic control unit system 9 connects corresponding 8 control signal input of hydraulic station, the hydraulic station
8 status signal output connection corresponds to the hydraulic station state signal input terminal of local electronic control unit system 9, and each displacement of bridge pier is surveyed
Signal output end connection away from system 7 corresponds to the jack displacement signal input terminal of local electronic control unit system 9.
In order to facilitate the above-mentioned technical proposal of the utility model is understood, below by way of new to this practicality in specifically used mode
The above-mentioned technical proposal of type is described in detail.
When specifically used, according to a kind of multi-joint multi-span steel beam described in the utility model based on independent non-rigid bridge pier
Incremental launching construction by multipoint jacking device includes following steps in Specific construction：
S1 init state checks：Each displacement of bridge pier range-measurement system 7 acquires 0 point of 1 initial level displacement of bridge pier, and it is arranged
In a bridge pier point be with reference to origin, main electronic control unit system 10 checks the oil cylinder position of each successively incremeantal launching method slide construction 4 and specifies
Its piston rod is in retraction end-state, sends out enabling signal；
S2 starts each hydraulic jack pushing unit 3, and plug pin system 5 carries out fastening screw, after the completion of bolt, sends out
Bolt completes signal；
S3 enters synchronous push process：Main electronic control unit system 10 receive other each point displacement of bridge pier amount data in real time with
It is compared with reference to origin described in step S1, and fine tuning flow and pressure signal, adjustment is sent out to each local electronic control unit system 9
The oil cylinder jacking force and speed of fulcrum between each hydraulic jack pushing unit 3 and girder steel 2 realize girder steel 2 during pushing tow
Dynamic adjusts each displacement of bridge pier amount, while main electronic control unit system 10 is flexible by the oil cylinder of each hydraulic jack pushing unit 3
Displacement sensor monitors each oil cylinder pushing tow stroke distances, and when oil cylinder stroke reaches positive foremost position, oil cylinder stops；
S4 plug pin systems 5 are pulled pin, and after the completion of pulling pin, are sent out to pull pin and are completed signal；
S5 is recycled, and main electronic control unit system 10 sends to each successively incremeantal launching method slide construction 4 and instructs, successively incremeantal launching method sliding knot
The oil cylinder retraction predetermined stroke of structure 4, and bolt positioning is carried out, realize a pushing tow process；So cycle, until main electronic control unit
System 10 receives the signal instruction for stopping successively incremeantal launching method.
In conclusion by means of the utility model above-mentioned technical proposal, it can be achieved that under complex environment across navigation channel, railway,
The steel girder erection problem of highway；The thrustor being arranged on multiple bridge piers can be controlled simultaneously, it need not be to bridge pier
Reinforcement protection is carried out, and by can ensure that bridge pier is not damaged to the real-time monitoring of each bridge pier, compared with prior art, this scheme is logical
It crosses and Comprehensive Control is carried out to the jacking force and pushing tow speed of pipe bending cylinder, be the work for being truly realized girder steel incremental launching construction by multipoint jacking
Condition makes supporting point horizontal force be close to 0, improves the construction quality and speed of girder steel, eliminates slideway, Bridge Pier reinforces work
Make, solves damage risk of the pushing tow horizontal reacting force to bridge pier, under the guiding role of horizontal reacting force track, pushing tow also ensure that
Lateral shift will not occur.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (2)
1. a kind of incremental launching construction by multipoint jacking device of multi-joint multi-span steel beam based on independent non-rigid bridge pier, which is characterized in that
Each bridge pier（1）One hydraulic jack pushing unit of upper setting（3）, the hydraulic jack pushing unit（3）Place is set
Successively incremeantal launching method slide construction there are one setting（4）, the hydraulic jack pushing unit（3）With successively incremeantal launching method slide construction（4）It is logical
Cross pushing reaction track（6）Connect girder steel（2）, the pushing reaction track（6）Along bridge to arrangement, the hydraulic jack pushing tow
Unit（3）With the pushing reaction track（6）Between be provided with plug pin system（5）, the successively incremeantal launching method slide construction（4）With
Displacement of bridge pier range-measurement system is provided between bridge pier（7）；
Each hydraulic jack pushing unit（3）There are one hydraulic stations for communication connection（8）, each hydraulic station（8）It is logical
There are one local electronic control unit systems for letter connection（9）, each local electronic control unit system（9）Communication link is connected to main electronic control unit
System（10）With corresponding displacement of bridge pier range-measurement system（7）.
2. a kind of incremental launching construction by multipoint jacking dress of the multi-joint multi-span steel beam according to claim 1 based on independent non-rigid bridge pier
It sets, which is characterized in that the main electronic control unit system（10）Each local electronic control unit system of communication terminal connection（9）Communication
End, each local electronic control unit system（9）Hydraulic control signal output end connect corresponding hydraulic station（8）Control signal input
End, the hydraulic station（8）The corresponding local electronic control unit system of status signal output connection（9）Hydraulic station status signal it is defeated
Enter end, each displacement of bridge pier range-measurement system（7）The corresponding local electronic control unit system of signal output end connection（9）Jack displacement
Signal input part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721610625.5U CN207974023U (en) | 2017-11-28 | 2017-11-28 | Incremental launching construction by multipoint jacking device of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721610625.5U CN207974023U (en) | 2017-11-28 | 2017-11-28 | Incremental launching construction by multipoint jacking device of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
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| CN207974023U true CN207974023U (en) | 2018-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815975A (en) * | 2017-11-28 | 2018-03-20 | 江西乔田重工有限公司 | Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
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2017
- 2017-11-28 CN CN201721610625.5U patent/CN207974023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815975A (en) * | 2017-11-28 | 2018-03-20 | 江西乔田重工有限公司 | Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier |
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