CN204435238U - For the braced structures of nose girder under Bridge Erector - Google Patents
For the braced structures of nose girder under Bridge Erector Download PDFInfo
- Publication number
- CN204435238U CN204435238U CN201520066940.0U CN201520066940U CN204435238U CN 204435238 U CN204435238 U CN 204435238U CN 201520066940 U CN201520066940 U CN 201520066940U CN 204435238 U CN204435238 U CN 204435238U
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- leg
- rear support
- back supporting
- support leg
- 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
Abstract
The utility model relates to Bridge Erector technical field, be specifically related to the braced structures for nose girder under Bridge Erector, include front leg strut and rear support leg, described rear support leg includes left back supporting leg and right back supporting leg, described left back supporting leg and right back supporting leg are that splayed is arranged, namely the lower end of described left back supporting leg and right back supporting leg is spaced apart on bridge pier, and upper end is drawn close and is connected with lower nose girder.Rear support leg is set to the splayed structure including left back supporting leg and right back supporting leg, rear support leg is made to be triangular shape, and then make rear support leg itself have good stability and good support strength, and then avoid the initial period of girder movement, make rear support leg occur supporting unstable situation because lower nose girder latter half is under pressure excessive.
Description
Technical field
The utility model relates to Bridge Erector technical field, is specifically related to a kind of braced structures for nose girder under Bridge Erector.
Background technology
Bridge Erector is transported by prefabricated case beam in bridge engineering and is placed into the equipment on prefabricated bridge pier, applies to widely in current bridge construction.With regard to the structure of Bridge Erector, current Bridge Erector is mainly divided into integral type Bridge Erector, freely-supported purlin formula Bridge Erector, lower nose-girder bridging machine.Fortune frame is separated, fix a point lifting, light structure, safe and reliable feature wherein to descend nose-girder bridging machine to have, and obtains and uses widely.
Lower nose-girder bridging machine mainly includes girder, suspender, front leg strut, middle supporting leg, rear support leg, lower nose girder, in construction, after Bridge Erector is arranged and is put in place, suspender on girder is sling between pile equipment to bridge pier, after this pile equipment puts construction in place, girder along lower nose girder move to next across bridge pier on, after girder puts in place, lower nose girder is moved to by suspender on the bridge pier of next stage again again, and then play box beam by girder and install, repeat, until all case beams are mounted complete according to above-mentioned steps.
In Bridge Erector structure, lower nose girder is arranged on bridge pier by front leg strut and rear support leg, and front leg strut and rear support leg respectively correspondence are arranged on two bridge piers, and conveniently manufacture, front leg strut and rear support leg adopt identical structure usually.
In practice of construction, inventor finds, when under girder edge, nose girder moves, at the initial period of girder movement, girder only contacts with the latter half of lower nose girder, so to exert pressure and uneven at whole moving process middle girder, so the stressed size of front leg strut and rear support leg inconsistent, be in particular in, the pressure suffered by rear support leg is greater than front leg strut, and then makes rear support leg there is the situation supporting instability.
So, at present, need badly a kind of can the braced structures of nose girder under excellent support Bridge Erector.
Utility model content
The purpose of this utility model is: in current Bridge Erector structure, lower nose girder can not obtain the deficiency of excellent support, and providing can the braced structures of nose girder under excellent support Bridge Erector.
To achieve these goals, the technical solution adopted in the utility model is:
For the braced structures of nose girder under Bridge Erector, include front leg strut and rear support leg, described rear support leg includes left back supporting leg and right back supporting leg, described left back supporting leg and right back supporting leg are that splayed is arranged, namely the lower end of described left back supporting leg and right back supporting leg is spaced apart on bridge pier, and upper end is drawn close and is connected with lower nose girder.Rear support leg is set to the splayed structure including left back supporting leg and right back supporting leg, rear support leg is made to be triangular shape, and then make rear support leg itself have good stability and good support strength, and then avoid the initial period of girder movement, make rear support leg occur supporting unstable situation because lower nose girder latter half is under pressure excessive.
As preferably, the lower end of described rear support leg is provided with rear lower transverse beam, and the lower end of described left back supporting leg and the lower end of right back supporting leg are arranged in the rear on lower transverse beam.By arranging rear lower transverse beam, rear support leg being set to class three-legged structure, further increasing the stability that rear support leg supports.
As preferably, between described rear lower transverse beam and bridge pier, be also provided with the rear levelling device regulating described rear lower transverse beam level height.By arranging rear levelling device, the level height of rear lower transverse beam can be regulated, even if the bearing height of whole rear support leg can regulate, further ensure that the stability that rear support leg supports.
As preferably, described rear levelling device is two, and after two, levelling device is corresponding with the lower end of described left back supporting leg and the lower end of right back supporting leg respectively.Coordinate adjustment by levelling device after two, the adjustment of rear support leg level height and levelness can be realized, further ensure that the stability that rear support leg supports.
As preferably, described rear support leg is also furnished with bearing diagonal, one end of described bearing diagonal is connected with described rear lower transverse beam, and the other end of described bearing diagonal is connected with lower nose girder.By arranging bearing diagonal, further ensure the stability that rear support leg supports.
As preferably, described bearing diagonal is two, and two described bearing diagonals are spaced apart.Add the stability that bearing diagonal supports lower nose girder, also further ensure the stability that rear support leg supports.
As preferably, described front leg strut includes left front supporting leg and right front supporting leg, and described left front supporting leg and right front supporting leg are that splayed is arranged, namely the lower end of described left front supporting leg and right front supporting leg is spaced apart on bridge pier, and upper end is drawn close and is connected with lower nose girder.As rear support leg, adopt splay front leg strut, further improve stability and the reliability of whole braced structures.
As preferably, the lower end of described front leg strut is provided with front lower transverse beam, and the lower end of described left front supporting leg and the lower end of right front supporting leg are arranged on described front lower transverse beam.
As preferably, between described front lower transverse beam and bridge pier, be also provided with the front levelling device regulating described front lower crossbeam level height.
As preferably, described front levelling device is two, and two front levelling devices are corresponding with the lower end of described left front supporting leg and the lower end of right front supporting leg respectively.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Improve the support strength of whole lower nose girder braced structures, stability and reliability, avoid the initial period of girder movement, make rear support leg occur supporting unstable situation because lower nose girder latter half is under pressure excessive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation in A-A cross section in Fig. 1;
Fig. 3 is the structural representation in B-B cross section in Fig. 1,
Mark in figure: 1-front leg strut, the left front supporting leg of 11-, the right front supporting leg of 12-, 2-rear support leg, the left back supporting leg of 21-, the right back supporting leg of 22-, 3-bridge pier, nose girder under 4-, lower transverse beam after 5-, levelling device after 6-, 7-bearing diagonal, lower transverse beam before 8-, levelling device before 9-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The braced structures for nose girder under Bridge Erector as shown in the figure, include front leg strut 1 and rear support leg 2, described rear support leg 2 includes left back supporting leg 21 and right back supporting leg 22, described left back supporting leg 21 and right back supporting leg 22 are arranged in splayed, namely the lower end of described left back supporting leg 21 and right back supporting leg 22 is spaced apart on bridge pier 3, and upper end is drawn close and is connected with lower nose girder 4.Rear support leg 2 is set to the splayed structure including left back supporting leg 21 and right back supporting leg 22, make rear support leg 2 in triangular shape, and then make rear support leg 2 itself have good stability and good support strength, and then avoid the initial period of girder movement, make rear support leg 2 occur supporting unstable situation because lower nose girder 4 latter half is under pressure excessive.
As preferably, the lower end of described rear support leg 2 is provided with rear lower transverse beam 5, and the described lower end of left back supporting leg 21 and the lower end of right back supporting leg 22 are arranged in the rear on lower transverse beam 5.By arranging rear lower transverse beam 5, rear support leg 2 being set to class three-legged structure, further increasing the stability that rear support leg 2 supports.
As preferably, between described rear lower transverse beam 5 and bridge pier 3, be also provided with the rear levelling device 6 regulating described rear lower transverse beam 5 level height.By arranging rear levelling device 6, the level height of rear lower transverse beam 5 can be regulated, even if the bearing height of whole rear support leg 2 can regulate, further ensure that the stability that rear support leg 2 supports.
As preferably, described rear levelling device 6 is two, and after two, levelling device 6 is corresponding with the lower end of described left back supporting leg 21 and the lower end of right back supporting leg 22 respectively.Coordinate adjustment by levelling device 6 after two, the adjustment of rear support leg 2 level height and levelness can be realized, further ensure that the stability that rear support leg 2 supports.
As preferably, described rear support leg 2 is also furnished with bearing diagonal 7, one end of described bearing diagonal 7 is connected with described rear lower transverse beam 5, and the other end of described bearing diagonal 7 is connected with lower nose girder 4.By arranging bearing diagonal 7, further ensure the stability that rear support leg 2 supports.
As preferably, described bearing diagonal 7 is two, and two described bearing diagonals 7 are spaced apart.Add the stability that bearing diagonal 7 supports lower nose girder 4, also further ensure the stability that rear support leg 2 supports.
As preferably, described front leg strut 1 includes left front supporting leg 11 and right front supporting leg 12, described left front supporting leg 11 and right front supporting leg 12 are arranged in splayed, and namely the lower end of described left front supporting leg 11 and right front supporting leg 12 is spaced apart on bridge pier 3, and upper end is drawn close and is connected with lower nose girder 4.As rear support leg 2, adopt splay front leg strut 1, further improve stability and the reliability of whole braced structures.
As preferably, the lower end of described front leg strut 1 is provided with front lower transverse beam 8, and the described lower end of left front supporting leg 11 and the lower end of right front supporting leg 12 are arranged on described front lower transverse beam 8.
As preferably, between described front lower transverse beam 8 and bridge pier 3, be also provided with the front levelling device 9 regulating described front lower transverse beam 8 level height.
As preferably, described front levelling device 9 is two, and two front levelling devices 9 are corresponding with the lower end of described left front supporting leg 11 and the lower end of right front supporting leg 12 respectively.
All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. for the braced structures of nose girder under Bridge Erector, include front leg strut and rear support leg, described rear support leg includes left back supporting leg and right back supporting leg, it is characterized in that, the lower end of described left back supporting leg and right back supporting leg is spaced apart on bridge pier, and upper end is drawn close and is connected with lower nose girder.
2. braced structures according to claim 1, is characterized in that, the lower end of described rear support leg is provided with rear lower transverse beam, and the lower end of described left back supporting leg and the lower end of right back supporting leg are arranged in the rear on lower transverse beam.
3. braced structures according to claim 2, is characterized in that, is also provided with the rear levelling device regulating described rear lower transverse beam level height between described rear lower transverse beam and bridge pier.
4. braced structures according to claim 3, is characterized in that, described rear levelling device is two, and after two, levelling device is corresponding with the lower end of described left back supporting leg and the lower end of right back supporting leg respectively.
5. braced structures according to claim 4, is characterized in that, described rear support leg is also furnished with bearing diagonal, and one end of described bearing diagonal is connected with described rear lower transverse beam, and the other end of described bearing diagonal is connected with lower nose girder.
6. braced structures according to claim 5, is characterized in that, described bearing diagonal is two, and two described bearing diagonals are spaced apart.
7. braced structures according to claim 6, it is characterized in that, described front leg strut includes left front supporting leg and right front supporting leg, described left front supporting leg and right front supporting leg are that splayed is arranged, namely the lower end of described left front supporting leg and right front supporting leg is spaced apart on bridge pier, and upper end is drawn close and is connected with lower nose girder.
8. braced structures according to claim 7, is characterized in that, the lower end of described front leg strut is provided with front lower transverse beam, and the lower end of described left front supporting leg and the lower end of right front supporting leg are arranged on described front lower transverse beam.
9. braced structures according to claim 8, it is characterized in that, the front levelling device regulating described front lower crossbeam level height is also provided with between described front lower transverse beam and bridge pier, described front levelling device is two, and two front levelling devices are corresponding with the lower end of described left front supporting leg and the lower end of right front supporting leg respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066940.0U CN204435238U (en) | 2015-01-30 | 2015-01-30 | For the braced structures of nose girder under Bridge Erector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066940.0U CN204435238U (en) | 2015-01-30 | 2015-01-30 | For the braced structures of nose girder under Bridge Erector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204435238U true CN204435238U (en) | 2015-07-01 |
Family
ID=53603125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520066940.0U Active CN204435238U (en) | 2015-01-30 | 2015-01-30 | For the braced structures of nose girder under Bridge Erector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204435238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835993A (en) * | 2017-03-07 | 2017-06-13 | 石家庄铁道大学 | Mobile formwork front leg strut base |
-
2015
- 2015-01-30 CN CN201520066940.0U patent/CN204435238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835993A (en) * | 2017-03-07 | 2017-06-13 | 石家庄铁道大学 | Mobile formwork front leg strut base |
| CN106835993B (en) * | 2017-03-07 | 2018-11-27 | 石家庄铁道大学 | Mobile formwork front leg strut pedestal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104594201B (en) | A kind of method utilizing one-sided pier-side bracket to set up pier top girder steel | |
| CN204435238U (en) | For the braced structures of nose girder under Bridge Erector | |
| CN204139569U (en) | Sliding scaffold | |
| CN103105309A (en) | Loading device of in-situ manual simulating reverse fault movement | |
| CN205132971U (en) | Pre -buried section structure in tower machine | |
| CN204199297U (en) | Bracing members axle force compensating device | |
| CN206971084U (en) | The supporting construction of bridge coping template | |
| CN202787085U (en) | Steel box girder large segment connection matching device with position adjusting function | |
| CN205874987U (en) | Simply put up bridge crane | |
| CN204311721U (en) | A kind of double bracket hanging basket is encorbelmented device | |
| CN204625017U (en) | A kind of engineering upending frame | |
| CN204435218U (en) | For the Novel base for supporting of bridge construction | |
| CN207392053U (en) | A kind of alignment control device suitable for steel construction abnormity tower | |
| CN213654282U (en) | Portable detachable cyclic utilization double-limb column type assembling jig frame | |
| CN104213578B (en) | Transmission line of electricity double-rod gate shaft tower self-regulated basis | |
| CN206986735U (en) | A kind of movable bridge suspension platform | |
| CN203374294U (en) | Safety walking ladder of large dip angle hydraulic support | |
| CN206902564U (en) | A kind of double width unit-frame based on without reinforcement cantilever bent cap bridge pier | |
| CN206034461U (en) | Subway foundation pit large -span support system | |
| CN205387726U (en) | Static load testing arrangement of asymmetric counter weight | |
| CN205854139U (en) | A kind of platform support and evacuation platform | |
| CN205114881U (en) | Gantry crane for shipbuilding | |
| CN104963410A (en) | Sliding connecting joint of steel structure beam column | |
| CN203699712U (en) | Automatic gradient adjusting type portal crane | |
| CN213806892U (en) | Leg-reducing iron tower and erection structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Maoming Inventor after: Song Yongqiang Inventor after: Qian Chaojun Inventor after: Zhang Tongqiao Inventor after: Zhang Xianjun Inventor after: Zhang Jiaocai Inventor after: Yang Jundong Inventor after: Du Xinli Inventor after: Yu Chaoyang Inventor before: Shi Maoming Inventor before: Song Yongqiang Inventor before: Qian Chaojun Inventor before: Zhang Tongqiao Inventor before: Zhang Xianjun Inventor before: Zhang Jiaocai Inventor before: Yang Jundong Inventor before: Du Xinli Inventor before: Yu Chaoyang |