CN204455862U - A kind of steel box-girder seam angle rackwork - Google Patents
A kind of steel box-girder seam angle rackwork Download PDFInfo
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- CN204455862U CN204455862U CN201520095771.3U CN201520095771U CN204455862U CN 204455862 U CN204455862 U CN 204455862U CN 201520095771 U CN201520095771 U CN 201520095771U CN 204455862 U CN204455862 U CN 204455862U
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Abstract
A kind of steel box-girder seam angle rackwork, it is characterized in that described rackwork comprises the counter-force seat laying respectively at adjacent steel box-girder craft port place and arrange, tensioning reinforcing bar is located between described counter-force seat, wherein a counter-force seat is provided with tensioning reinforcing bar rackwork and drives tensioning steel-bar arrangement.This steel box-girder seam angle rackwork is reasonable in design, install and regulate construction convenient, it need not by other large-scale positioning equipment, the end of steel box-girder to be adjusted and adjacent steel box-girder of having constructed only is relied on to carry out the installation of the counter-force seat of small volume, then carry out relative to force effect between steel box-girder by tensioning reinforcing bar and realize the positioning of steel box-girder seam angle, this construction safety coefficient is high, construction labour intensity poor efficiency improves and aligning precision is controlled.
Description
Technical field
The utility model belongs to the rackwork that steel box-girder carries out the installation of pier top, be specifically related to a kind of steel box-girder carry out end docking welding before butt joint angle carry out the steel box-girder seam angle rackwork that adjusts.
Background technology
Growing along with construction industry and technology, China is in the coastal construction carrying out multiple marine elevated bridge.In order to realize high efficiency and the construction of high performance overhead girder, existing overhead road bridge generally adopts the large sections steel box-girder had compared with large span, and its length has reached more than 80 to 130 meters, and weight is up to more than 2000 tons.After large sections steel box-girder carries out lifting and installs to pier by the large-scale suspender of employing, needing to carry out positioning construction according to steel box-girder installation site, is first guide steel box-girder dropping place to the process of temporary support to be called by first rackwork just to transpose.After first positioning, by pier top accurate adjustment position system and bracket accurate adjustment position system, the elevation of beam and horizontal level are adjusted, until beam section hookup wire pictograph closes the linear process of design be called accurate adjustment position.
Even if after carrying out accurate adjustment position to steel box-girder, the positioning construction not carrying out these steel box-girder two ends also can there is corner because of steel box-girder to be positioned because of many reasons and stressed its end and the adjacent oriented steel box-girder docking port place of causing, if just cannot carry out follow-up weld job.And be limited by the restriction of construction site condition, main equipment cannot be used to carry out this beam section adjustment of steel box-girder.
Utility model content
The utility model provides a kind of reasonable in design, install and regulate steel box-girder seam angle rackwork easily of constructing, it need not by other large-scale positioning equipment, the end of steel box-girder to be adjusted and adjacent steel box-girder of having constructed only is relied on to carry out the installation of the counter-force seat of small volume, then carry out relative to force effect between steel box-girder by tensioning reinforcing bar and realize the positioning of steel box-girder seam angle, this construction safety coefficient is high, construction labour intensity poor efficiency improves and aligning precision is controlled.
The technical scheme that the utility model adopts is as follows:
A kind of steel box-girder seam angle rackwork, it is characterized in that described rackwork comprises the counter-force seat laying respectively at adjacent steel box-girder craft port place and arrange, tensioning reinforcing bar is located between described counter-force seat, wherein a counter-force seat is provided with tensioning reinforcing bar rackwork and drives tensioning steel-bar arrangement.
Concretely, described rackwork comprises the counter-force seat that the upper surface of adjacent steel box-girder craft port and lower surface are fixedly installed, and described counter-force seat is provided with a tensioning reinforcing bar and wears fastening part.
In one embodiment, described counter-force seat is symmetrical arranged between adjacent steel box-girder craft port, and tensioning reinforcing bar is located in the axis setting that its bearing of trend after between counter-force seat is parallel to steel box-girder.
In one embodiment, described tensioning reinforcing bar is fining twisted steel, and one end of fining twisted steel is fixed on a counter-force seat by locking nut.
In another embodiment, described tensioning reinforcing bar rackwork comprises a reinforcing bar punching hydraulic system, and the hydraulic-driven portion of this punching hydraulic jacking system is fixedly connected with described tensioning steel bar piece.
This steel box-girder seam angle rackwork can effectively be eliminated because of the corner manufactured or alignment error causes adjacent steel box-girder craft port to occur, facilitates beam section to transpose and welding.By the counter-force seat arranged at adjacent steel box-girder craft port place, the physical connection of tensioning reinforcing bar to two adjacent steel box-girder can be realized.In practical operation, counter-force seat is generally arranged on the position producing corner and angle.One of them counter-force seat only needs one end of fixed tensioning reinforcing bar, another counter-force seat arranges the device driving tensioning reinforcing bar, such as hydraulic system or leading screw pushing tow system, tensioning reinforcing bar between two counter-force seats is shortened, thus drive steel box-girder to produce the displacement needed, meet the construction requirement and follow-up welding operation of eliminating beam-ends corner.
The beneficial effects of the utility model are, this steel box-girder seam angle rackwork is reasonable in design, install and regulate construction convenient, it need not by other large-scale positioning equipment, the end of steel box-girder to be adjusted and adjacent steel box-girder of having constructed only is relied on to carry out the installation of the counter-force seat of small volume, then carry out relative to force effect between steel box-girder by tensioning reinforcing bar and realize the positioning of steel box-girder seam angle, this construction safety coefficient is high, construction labour intensity poor efficiency improves and aligning precision is controlled.
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of the utility model detailed description of the invention.
Detailed description of the invention
As shown in Figure 1, this steel box-girder seam angle rackwork is arranged on adjacent steel box-girder craft port place, it comprises the counter-force seat 11 and 21 being positioned at adjacent steel box-girder craft port place and arranging, counter-force seat symmetry between adjacent steel box-girder craft port is fixedly installed, and the upper surface of the adjacent steel box-girder craft port of this counter-force seat or lower surface are arranged.In Fig. 1, steel box-girder 10 is for complete construction steel box-girder, and steel box-girder 20 is the steel box-girder of hot work in progress.Tensioning reinforcing bar 30 is located between counter-force seat 11 and 21, and tensioning reinforcing bar is located in the axis setting that its bearing of trend after between counter-force seat is parallel to steel box-girder.This tensioning reinforcing bar 30 is fining twisted steel, and counter-force seat 21 is provided with a tensioning reinforcing bar and wears fastening part, one end of fining twisted steel is fixed on counter-force seat 21 by locking nut.Counter-force seat 11 is provided with tensioning reinforcing bar rackwork and drives tensioning reinforcing bar, tensioning reinforcing bar rackwork comprises a reinforcing bar punching hydraulic system 12, and the hydraulic-driven portion of this punching hydraulic system is fixedly connected with described tensioning steel bar piece.
Claims (5)
1. a steel box-girder seam angle rackwork, it is characterized in that described rackwork comprises the counter-force seat laying respectively at adjacent steel box-girder craft port place and arrange, tensioning reinforcing bar is located between described counter-force seat, wherein a counter-force seat is provided with tensioning reinforcing bar rackwork and drives tensioning steel-bar arrangement.
2. steel box-girder seam angle rackwork according to claim 1, it is characterized in that described counter-force seat being provided with the counter-force seat that described rackwork comprises the upper surface of adjacent steel box-girder craft port and lower surface and is fixedly installed a tensioning reinforcing bar and wearing fastening part.
3. steel box-girder seam angle rackwork according to claim 1, is characterized in that described counter-force seat is symmetrical arranged between adjacent steel box-girder craft port, and tensioning reinforcing bar is located in the axis setting that its bearing of trend after between counter-force seat is parallel to steel box-girder.
4. steel box-girder seam angle rackwork according to claim 1, is characterized in that described tensioning reinforcing bar is fining twisted steel, and one end of fining twisted steel is fixed on a counter-force seat by locking nut.
5. steel box-girder seam angle rackwork according to claim 1, it is characterized in that described tensioning reinforcing bar rackwork comprises a reinforcing bar punching hydraulic system, the hydraulic-driven portion of this punching hydraulic system is fixedly connected with described tensioning steel bar piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095771.3U CN204455862U (en) | 2015-02-10 | 2015-02-10 | A kind of steel box-girder seam angle rackwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095771.3U CN204455862U (en) | 2015-02-10 | 2015-02-10 | A kind of steel box-girder seam angle rackwork |
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| CN204455862U true CN204455862U (en) | 2015-07-08 |
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| CN201520095771.3U Active CN204455862U (en) | 2015-02-10 | 2015-02-10 | A kind of steel box-girder seam angle rackwork |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735134A (en) * | 2016-03-17 | 2016-07-06 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN106835997A (en) * | 2017-03-21 | 2017-06-13 | 中国葛洲坝集团第二工程有限公司 | Steel box-girder lifts interim accurate positioning device and localization method |
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
-
2015
- 2015-02-10 CN CN201520095771.3U patent/CN204455862U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735134A (en) * | 2016-03-17 | 2016-07-06 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN105735134B (en) * | 2016-03-17 | 2017-05-17 | 中交第二航务工程局有限公司 | Temporary tensioning method for stub matching prefabricated box girders |
| CN106835997A (en) * | 2017-03-21 | 2017-06-13 | 中国葛洲坝集团第二工程有限公司 | Steel box-girder lifts interim accurate positioning device and localization method |
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
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| GR01 | Patent grant |