CN208517830U - A kind of Prebending type bridge formwork - Google Patents
A kind of Prebending type bridge formwork Download PDFInfo
- Publication number
- CN208517830U CN208517830U CN201820335870.8U CN201820335870U CN208517830U CN 208517830 U CN208517830 U CN 208517830U CN 201820335870 U CN201820335870 U CN 201820335870U CN 208517830 U CN208517830 U CN 208517830U
- Authority
- CN
- China
- Prior art keywords
- template
- tension band
- segment
- type bridge
- bridge formwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of Prebending type bridge formworks, solves the problems, such as traditional linear low precision of cantilever construction Bridge, its key points of the technical solution are that template includes template portion, and by the anti-bow device of template portion pre-bending camber, anti- bow device includes the tension band that template portion bottom surface is arranged in, corresponding support is arranged in template portion bottom surface both side, the tension band both ends are fixedly mounted on the support, anti- bow device further includes the vertical stretcher between tension band and template portion, vertical stretcher one end is perpendicularly fixed at template portion bottom surface, the other end connects tension band, lifting tensioning or release tension band by vertical stretcher.By the way that anti-bow device is arranged in template, it will be changed into a manner of rolling over Dai Qu in traditional cantilever construction with bent generation song, larger in the linear curvature difference of bridge different segment, template curvature can be adjusted according to actual curvature in segment, can effectively improve bridge linear precision.
Description
Technical field
The utility model relates to field of bridge construction, and in particular to a kind of bridge formwork.
Background technique
The alignment control of bridge is an important ring in bridge construction, and bridge linear is smooth and identical design requirement not only relationship
Whether bridge is overall beautiful, more influence bed rearrangement bridge structure is reasonable property, or even influence the reliability of bridge.Currently, big
Cantilever method is a kind of most common construction method in the construction of span bridge's continuous beam, and cantilever-construction is since bridge pier two
Side symmetrically carries out cast-in-place paragraph by paragraph or prefabricated subsection is symmetrically carried out assembly.From cantilever method principle it is found that cantilever construction be by with
Multistage broken line is fitted the integral linear of bridge.
Traditional cantilever method is easy to produce the feelings of linear deviation design ideal state in the work progress of box girder with variable cross section
Condition is mainly caused by following reason: a, as shown in Figure 1, due to cantilever method be use to construct in a manner of rolling over Dai Qu, and
The standard segment of whole bridge generallys use same template 1, and in the biggish position of Curvature varying, the error of segmented fitting curve is larger to be led
Cause linear irregularity in the segment；B, the sequence of construction that traditional cantilever method adjacent segment pours is as follows: in previous segment concrete
After pouring, template is integrally demoulded, next segment is moved forward to and pours, template is installed be required to re-start positioning every time,
Thus adjacent segment joining place is usually present the case where transition such as gap, step have some setbacks, and affects the integral linear of bridge.
Utility model content
The purpose of the invention of the present invention is to solve the problems, such as traditional linear low precision of cantilever construction Bridge, mention
For a kind of Prebending type bridge formwork, itself curvature can be adjusted according to segment actual curvature.
In order to achieve the above-mentioned object of the invention, the utility model uses following technical scheme:
A kind of Prebending type bridge formwork, the template include template portion, and the template further includes that template portion is pre-bent to arc
The anti-bow device of shape, the anti-device that bends includes the tension band that template portion bottom surface is arranged in, and bottom surface both side setting in the template portion is opposite
The support answered, the tension band both ends are fixedly mounted on the support, and the anti-device that bends further includes between tension band and template portion
Vertical stretcher, vertical stretcher one end is perpendicularly fixed at template portion bottom surface, and the other end connects tension band, by being vertically tensioned
The lifting of device is tensioned or unclamps tension band.
Preferably, the vertical stretcher is jack.Adjust laborsaving, easily controllable adjusting essence using this structure
Degree.
Preferably, the template of single segment is made of at least three template segments, including the head section template close to cantilever side
Section, close to bridge pier endpiece template segment and positioned at one or more middle section template segments between the two.The template of single segment by
One piece increases to muti-piece, and since cantilever pouring is with segmented fitting curve, increase template block number is equivalent to be increased in a segment
Broken line quantity is added, so that the linear ideal closer to design of fitting is linear.Meanwhile using the bridge formwork knot of segmented
The template segment that structure can fix transition position in construction is motionless, and overlapped that mode is constructed by mobile, effectively improves because again
The case where transition such as gap, misalignment have some setbacks between two segments caused by positioning, improves linear smooth degree.
Preferably, the multiple template segment is isometric.
Preferably, having Quick locating structure between the template segment, the Quick locating structure is to be arranged in template
The convex block of section side and the groove compatible with the convex block that adjacent forms section opposite side is set.
Preferably, the template is used for the bottom plate mould of box girder with variable cross section.
A kind of Prebending type bridge formwork, the template include template portion, and the template further includes that template portion is pre-bent to arc
The anti-bow device of shape, the anti-bow device include the tension band that template portion bottom surface is arranged in, the setting of template portion bottom surface both side
Corresponding support, support open up supported hole, and tension band is arranged in supported hole, and screw thread, tensioning is arranged in the tension band both ends
Band end is arranged nut, by adjusting nut and length of thread engagement tensioning or unclamps tension band.
Preferably, the template of single segment is made of at least three template segments, including the head section template close to cantilever side
Section, close to bridge pier endpiece template segment and positioned at one or more middle section template segments between the two.The template of single segment by
One piece increases to muti-piece, and since cantilever pouring is with segmented fitting curve, increase template block number is equivalent to be increased in a segment
Broken line quantity is added, so that the linear ideal closer to design of fitting is linear.Meanwhile using the bridge formwork knot of segmented
The template segment that structure can fix transition position in construction is motionless, and overlapped that mode is constructed by mobile, effectively improves because again
The case where transition such as gap, misalignment have some setbacks between two segments caused by positioning, improves linear smooth degree.
Preferably, the multiple template segment is isometric.
Preferably, having Quick locating structure between the template segment, the Quick locating structure is to be arranged in template
The convex block of section side and the groove compatible with the convex block that adjacent forms section opposite side is set.
Preferably, the template is used for the bottom plate mould of box girder with variable cross section.
Compared with prior art, using a kind of Prebending type bridge formwork of above-mentioned technical proposal, have following beneficial to effect
Fruit:
By the way that anti-bow device is arranged in template, will be changed into a manner of rolling over Dai Qu in traditional cantilever construction with bent generation
Song, larger in the linear curvature difference of bridge different segment, template curvature can be adjusted according to actual curvature in segment, energy
Enough effectively improve bridge linear precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model prior art template；
Fig. 2 is a kind of structural schematic diagram of Prebending type bridge formwork embodiment 1 of the utility model；
Fig. 3 is a kind of structural schematic diagram of Prebending type bridge formwork embodiment 2 of the utility model；
Fig. 4 is a kind of structural schematic diagram of Prebending type bridge formwork embodiment 3 of the utility model.
Appended drawing reference: 1, template；101, template portion；1011, support；102, tension band；103, vertical stretcher；203, spiral shell
Cap；301, template segment.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Claims (11)
1. a kind of Prebending type bridge formwork, the template includes template portion, it is characterised in that: the template further includes by template portion
The anti-bow device of pre-bending camber, the anti-device that bends includes the tension band that template portion bottom surface is arranged in, template portion bottom surface both side
Corresponding support is set, and the tension band both ends are fixedly mounted on the support, and the anti-device that bends further includes being located at tension band and mould
Vertical stretcher between plate portion, vertical stretcher one end are perpendicularly fixed at template portion bottom surface, and the other end connects tension band, passes through
Tension band is unclamped in the lifting tensioning of vertical stretcher.
2. a kind of Prebending type bridge formwork according to claim 1, it is characterised in that: the vertical stretcher is very heavy
Top.
3. a kind of Prebending type bridge formwork according to claim 1, it is characterised in that: the template of single segment is by least three
A template segment composition, including the head section template segment close to cantilever side, the endpiece template segment close to bridge pier and positioned between the two
One or more middle section template segments.
4. a kind of Prebending type bridge formwork according to claim 3, it is characterised in that: the multiple template segment is isometric.
5. a kind of Prebending type bridge formwork according to claim 4, it is characterised in that: have between the template segment quick
Location structure, the Quick locating structure be the convex block of template segment side is set and be arranged in adjacent forms section opposite side with
The compatible groove of the convex block.
6. a kind of Prebending type bridge formwork according to claim 1, it is characterised in that: the template is used for box girder with variable cross section
Bottom plate mould.
7. a kind of Prebending type bridge formwork, the template includes template portion, it is characterised in that: the template further includes by template portion
The anti-bow device of pre-bending camber, the anti-bow device includes the tension band that template portion bottom surface is arranged in, template portion bottom surface
Corresponding support is arranged in two sides, and support opens up supported hole, and tension band is arranged in supported hole, and spiral shell is arranged in the tension band both ends
Line, tension band end are arranged nut, by adjusting nut and length of thread engagement tensioning or unclamp tension band.
8. a kind of Prebending type bridge formwork according to claim 7, it is characterised in that: the template of single segment is by least three
A template segment composition, including the head section template segment close to cantilever side, the endpiece template segment close to bridge pier and positioned between the two
One or more middle section template segments.
9. a kind of Prebending type bridge formwork according to claim 8, it is characterised in that: the multiple template segment is isometric.
10. a kind of Prebending type bridge formwork according to claim 9, it is characterised in that: have between the template segment fast
Fast location structure, the Quick locating structure are that the convex block of template segment side is arranged in and adjacent forms section opposite side is arranged in
Groove compatible with the convex block.
11. a kind of Prebending type bridge formwork according to claim 7, it is characterised in that: the template is used for variable cross-section case
The bottom plate mould of beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335870.8U CN208517830U (en) | 2018-03-12 | 2018-03-12 | A kind of Prebending type bridge formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335870.8U CN208517830U (en) | 2018-03-12 | 2018-03-12 | A kind of Prebending type bridge formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208517830U true CN208517830U (en) | 2019-02-19 |
Family
ID=65340967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820335870.8U Active CN208517830U (en) | 2018-03-12 | 2018-03-12 | A kind of Prebending type bridge formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208517830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719795A (en) * | 2020-12-17 | 2021-04-30 | 江苏恒睿杰钢结构工程有限公司 | Manufacturing method of large steel box girder |
| CN113465582A (en) * | 2021-05-27 | 2021-10-01 | 中铁隧道局集团建设有限公司 | Arc-shaped positioning pay-off device capable of being adjusted and reused and pay-off method thereof |
| CN113605708A (en) * | 2021-07-30 | 2021-11-05 | 中国核工业华兴建设有限公司 | Arched steel structure lower opening tensioning construction device and construction method |
-
2018
- 2018-03-12 CN CN201820335870.8U patent/CN208517830U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719795A (en) * | 2020-12-17 | 2021-04-30 | 江苏恒睿杰钢结构工程有限公司 | Manufacturing method of large steel box girder |
| CN113465582A (en) * | 2021-05-27 | 2021-10-01 | 中铁隧道局集团建设有限公司 | Arc-shaped positioning pay-off device capable of being adjusted and reused and pay-off method thereof |
| CN113465582B (en) * | 2021-05-27 | 2023-03-21 | 中铁隧道局集团建设有限公司 | Arc-shaped positioning pay-off device capable of being adjusted and reused and pay-off method thereof |
| CN113605708A (en) * | 2021-07-30 | 2021-11-05 | 中国核工业华兴建设有限公司 | Arched steel structure lower opening tensioning construction device and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208517830U (en) | A kind of Prebending type bridge formwork | |
| CN102587295B (en) | Under-supported basket form fine-adjustment system and under-supported basket form adjustment method | |
| CN201358439Y (en) | Catwalk anchorage adjusting device | |
| CN206308799U (en) | One kind is used for the telescopic steel construction cable-stayed support of building | |
| CN203559354U (en) | Stay cable anchoring structure applied to prestressed concrete partially cable-stayed bridge | |
| CN205630974U (en) | Pre -tensioning system precast beam pedestal | |
| CN210880146U (en) | Concrete prefabricated simply supported T beam formwork | |
| CN107574725B (en) | A kind of double-block type ballastless track plate and preparation method thereof | |
| CN202401394U (en) | Crossbeam structure of railway steel-girder cable-stayed bridge decking | |
| CN102140839B (en) | Staircase shaping support formwork | |
| CN202323669U (en) | Prestressed ultrahigh-performance concrete continuous box girder bridge | |
| CN108385542A (en) | A kind of fine linear quadratic control construction method of bridge linear | |
| CN208777175U (en) | A kind of overlapping constructing device of I-shaped steel reinforced concrete combination beam concrete | |
| CN214871544U (en) | Device for preventing end part from stretching and cracking for precast beam | |
| CN201933780U (en) | Staircase shaping formwork support | |
| JP2010037833A (en) | Bridge extrusion erection construction method | |
| CN210737244U (en) | Fine adjustment claw for laying ballastless track plate | |
| CN212336536U (en) | Assembled concrete cushion block | |
| CN110318557B (en) | Prestressed concrete hollow slab reinforcing device and method | |
| CN208995933U (en) | A kind of bridge column foot formwork for placing convenient for assembling | |
| CN210011129U (en) | Prestressed concrete precast pile manufacturing die | |
| CN208633121U (en) | A kind of cable duct sliding form apparatus | |
| CN208915838U (en) | A kind of adjustable chock component of precast concrete superimposed sheet | |
| CN207888895U (en) | Pretensioning prestressed concrete track board assembly line puts a system | |
| CN201818057U (en) | Concrete casting control device for ultra-flat floor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |