CN207974016U - A kind of steel truss pushing tow support system - Google Patents
A kind of steel truss pushing tow support system Download PDFInfo
- Publication number
- CN207974016U CN207974016U CN201820328383.9U CN201820328383U CN207974016U CN 207974016 U CN207974016 U CN 207974016U CN 201820328383 U CN201820328383 U CN 201820328383U CN 207974016 U CN207974016 U CN 207974016U
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- China
- Prior art keywords
- steel truss
- pushing tow
- support system
- nose girder
- tow support
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Abstract
The utility model provides a kind of steel truss pushing tow support system, including nose girder and receive beam, the nose girder is the steel truss of multi-disc cross-section triangle, it is described to receive the steel truss that beam includes multi-disc rectangle variable cross-section, it receives and is provided with multiple rollers at the top of beam, nose girder is connected with reception beam by transverse connecting rod integral.The front end of nose girder is connect with main body steel truss structure, and other end direction receives beam.In the steel truss bottom of the cross-section triangle, end slipway steel plate is set.The utility model can reduce jib-length during large span steel truss bridge incremental launching, reduce malformation, improve incremental launching construction safety.
Description
Technical field
The utility model belongs to large span steel truss bridge structure technical field of construction, is related to support construction, and in particular to
A kind of steel truss pushing tow support system.
Background technology
In steel structural bridge beam structure construction, incremental launching method is usually used to the construction method of large span steel truss beam.Top
Pushing manipulation construction refer in the prefabricated place of postposition along bridge y direction, segmented precast beam, then by prefabricated segment with apply
The beam body that work is completed is linked to be entirety, and then by level jack, by beam body, pushing tow goes out prefabricated place forward, then proceedes to pre-
Field processed carries out the prefabricated of next beam sections, until a kind of construction method that construction is completed.In mountain area, by construction site and transport
The limitation of condition, incremental launching method are a kind of construction methods very competitive in bridge construction.Incremental launching method can make
Long, big bridge is built with simple equipment, operating expenses is low, and construction is steady, and girder segmentation is prefabricated, and structural integrity is good.Pushing tow
Construction method is developed so far, and prodigious promotion and development is obtained in pushing tow precision, while there has also been length in terms of pushing tow ability
The progress of foot., can be excessive because of dead load during cantilever incremental launching construction but for large span steel truss beam,
Jib-length is long, causes beam-ends deflection deformation excessive, until main beam structure is made to destroy.Accordingly, it is desirable to provide a kind of temporary support
System solves problems.
Invention content
For problems of the prior art, the purpose of this utility model is to provide a kind of steel truss pushing tow support system
System.
Technical solution used by the utility model is：
A kind of steel truss pushing tow support system, including nose girder and reception beam, the nose girder are multi-disc cross-section triangle
Steel truss, it is described receive beam include multi-disc rectangle variable cross-section steel truss, receive and be provided with multiple rollers at the top of beam, nose girder and
It is integral by transverse connecting rod connection to receive beam.
Further, the front end of nose girder is connect with main body steel truss structure, and other end direction receives beam.In the cross-section
End slipway steel plate is arranged in the steel truss bottom of triangle.
It is located on target bridge pier in use, receiving beam, reception beam bottom portion is provided with multiple vertical with target bridge pier contact position
Pushing tow jack.Particularly, the piston rod of vertical pushing tow jack is welded to connect with beam bottom portion is received.Vertical pushing tow jack with
Backing plate is set between target bridge pier.
In addition, being provided with vertical slideway with the side contact position of target bridge pier on the steel truss of the rectangle variable cross-section
Plate.Further, vertical chute board is fixed on target bridge pier side by anchor bolt.
Optionally, vertical chute board is provided with butter layer with beam contact surface is received.
Optionally, it receives beam rear end and is provided with ballast box.
The utility model has the beneficial effects that：
The nose girder of the utility model and receive beam main truss enabled to set a roof beam in place and terminate in advance cantilever position, to reduce greatly across
Jib-length during degree steel truss bridge pushing tow, reduces malformation, improves incremental launching construction safety.
The jack system of the utility model can adjust the vertical height for receiving beam so that nose girder first time and reception
Beam contacts, while avoiding nose girder and receiving the collision of beam.
The reception beam rear part of the utility model is provided with ballast box, to reduce the unidirectional moment of flexure for receiving beam to pier stud.
The present apparatus has the characteristics that simple structure, utilization easy for construction and repeatable, can be according to different Steel Truss Beams
Design requirement, construction requirement are targetedly designed, that is, are adjusted the setting quantity for receiving beam and nose girder, applied to large size
In the incremental launching construction of Steel Truss Beam, speed of application and efficiency will be greatly improved.
Description of the drawings
Fig. 1 is the steel truss pushing tow support system schematic diagram of the utility model；
Fig. 2 is the nose girder schematic diagram of the utility model；
Fig. 3 is the reception beam schematic diagram of the utility model, and a is graphics, and b is left view；
In figure, 1- nose girders, 2- receives beam, 3- idler wheels, 4- transverse connecting rods, 5- end slipway steel plates, 6- target bridge piers, 7-
Vertical pushing tow jack, 8- backing plates, the vertical slideway steel plates of 9-, 10- ballast boxes.
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Specific implementation mode
It is as described below, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Embodiment 1：
The utility model provides a kind of steel truss pushing tow support system, including nose girder 1 and reception beam 2,1 front end of nose girder and master
Body steel truss structure connects, and receives beam 2 and is positioned on the target bridge pier 6 in pushing tow direction.The utility model is for realizing above-mentioned work(
Can the concrete structure of nose girder 1 can be：Including for multi-disc triangular-section steel truss, end slipway steel is welded in steel truss bottom
Plate 5, steel truss are connected integral by transverse connecting rod 4.The utility model for realizing above-mentioned function reception beam 2 specific knot
Structure can be：Including rectangle Variable Section Steel truss, jack system, rectangle Variable Section Steel truss is positioned on target bridge pier 6, often
There are four vertical pushing tow jack 7, piston rod and 2 bottoms of reception beam of vertical pushing tow jack 7 for the setting of piece Steel Truss Beam bottom
It is welded to connect.Backing plate 8 is set between vertical pushing tow jack 7 and target bridge pier 6.The top of reception beam 2 is provided with multiple idler wheels 3 can
It reduces nose girder 1 and main body Steel Truss Beam and receives the friction between beam 2.On the steel truss of rectangle variable cross-section with target bridge pier 6
Side contact position be provided with vertical chute board 9.Vertical chute board 9 is fixed on 6 side of target bridge pier by anchor bolt.Vertically
Chute board 9 is provided with butter layer to reduce vertical friction with 2 contact surface of beam is received.
1 longitudinal direction one end of nose girder is connect with main body steel truss structure, with the pushing tow progress of main body steel truss, is gradually taken
It is connected on and receives on beam 2, until main couple back is pushed away and finished；Reception beam 2 is multi-disc rectangle Variable Section Steel truss, by transverse connecting rod
4 connections are integral, corresponding with nose girder 1, receive beam 2 and are positioned on target bridge pier 6, every supporting beam lower part for receiving beam 2 is set
Vertical pushing tow jack 7 there are four setting, can make reception beam 2 vertically movable by jack, so that first time and nose girder 1 connect
It connects, receives 2 top of beam and be provided with idler wheel 3, nose girder 1 and main body Steel Truss Beam can be reduced and receive the friction between beam 2, receive beam
2 rear ends are provided with counter weight device, can place sandbag in ballast box 10 according to the stressing conditions for receiving beam and carry out counterweight, to reduce
Receive unidirectional moment of flexure of the beam 2 to pier stud.The utility model can reduce jib-length during large span steel truss bridge incremental launching,
Malformation is reduced, incremental launching construction safety is improved.
As shown in Figs. 1-3, steel truss pushing tow support system provided in this embodiment, all components of device are steel construction.
Nose girder, reception beam are prefabricated in factory's welding, are then lifted and are used at the construction field (site).
The steel truss pushing tow support system of the present embodiment, should before construction to span, load of practical Steel Truss Beam etc. into
Row calculates, and in conjunction with the structure type of bridge pier, is determined to steel truss guide beam and the size and number for receiving beam.
When construction, the steel truss pushing tow support system of the present embodiment, with the pushing tow progress of main body steel truss, nose girder is by preceding
End is overlapped in advance to be received on beam 2 so that main body steel truss jib-length reduces, until main body steel truss reaches target bridge pier 3
Steel truss pushing tow support system is removed afterwards.
Claims (10)
1. a kind of steel truss pushing tow support system, including nose girder (1) and reception beam (2), the nose girder (1) are multi-disc cross-section three
Angular steel truss, which is characterized in that it is described to receive the steel truss that beam (2) includes multi-disc rectangle variable cross-section, receive the top of beam (2)
It is integral by transverse connecting rod (4) connection that portion is provided with multiple idler wheels (3), nose girder (1) and reception beam (2).
2. steel truss pushing tow support system as described in claim 1, which is characterized in that in the steel truss of the cross-section triangle
End slipway steel plate (5) is arranged in bottom.
3. steel truss pushing tow support system as described in claim 1, which is characterized in that the front end of nose girder (1) and main body steel truss
Structure connects, and other end direction receives beam (2).
4. steel truss pushing tow support system as described in claim 1, which is characterized in that receive beam (2) and be located at target bridge pier (6)
On, it receives beam (2) bottom and target bridge pier contact position is provided with multiple vertical pushing tow jack (7).
5. steel truss pushing tow support system as claimed in claim 4, which is characterized in that the piston rod of vertical pushing tow jack (7)
It is welded to connect with beam (2) bottom is received.
6. steel truss pushing tow support system as claimed in claim 4, which is characterized in that vertical pushing tow jack (7) and target bridge
Backing plate (8) is set between pier (6).
7. steel truss pushing tow support system as described in claim 1, which is characterized in that on the steel truss of the rectangle variable cross-section
The side contact position of target bridge pier (6) is provided with vertical chute board (9).
8. steel truss pushing tow support system as claimed in claim 7, which is characterized in that vertical chute board (9) passes through anchor bolt
It is fixed on target bridge pier (6) side.
9. steel truss pushing tow support system as claimed in claim 7, which is characterized in that vertical chute board (9) connects with beam (2) is received
Contacting surface is provided with butter layer.
10. steel truss pushing tow support system as described in claim 1, which is characterized in that receive beam (2) rear end and be provided with ballast box
(10)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328383.9U CN207974016U (en) | 2018-03-09 | 2018-03-09 | A kind of steel truss pushing tow support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328383.9U CN207974016U (en) | 2018-03-09 | 2018-03-09 | A kind of steel truss pushing tow support system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207974016U true CN207974016U (en) | 2018-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820328383.9U Active CN207974016U (en) | 2018-03-09 | 2018-03-09 | A kind of steel truss pushing tow support system |
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| Country | Link |
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| CN (1) | CN207974016U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629677A (en) * | 2019-09-29 | 2019-12-31 | 中铁大桥局集团有限公司 | Method for erecting section steel beam on pier top short slideway beam |
| CN110735478A (en) * | 2019-10-28 | 2020-01-31 | 盐城工学院 | fabricated concrete truss building structure |
| CN111576834A (en) * | 2020-05-28 | 2020-08-25 | 燕山大学 | Fixed boiler maintenance platform and installation method |
-
2018
- 2018-03-09 CN CN201820328383.9U patent/CN207974016U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629677A (en) * | 2019-09-29 | 2019-12-31 | 中铁大桥局集团有限公司 | Method for erecting section steel beam on pier top short slideway beam |
| CN110629677B (en) * | 2019-09-29 | 2021-01-26 | 中铁大桥局集团有限公司 | Method for erecting section steel beam on pier top short slideway beam |
| CN110735478A (en) * | 2019-10-28 | 2020-01-31 | 盐城工学院 | fabricated concrete truss building structure |
| CN110735478B (en) * | 2019-10-28 | 2021-04-30 | 盐城工学院 | Assembled concrete truss building structure |
| CN111576834A (en) * | 2020-05-28 | 2020-08-25 | 燕山大学 | Fixed boiler maintenance platform and installation method |
| CN111576834B (en) * | 2020-05-28 | 2021-07-30 | 燕山大学 | Fixed boiler maintenance platform and installation method |
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