CN204728218U - Bridge beam body base plate exposes steel strand tension jack supporting device - Google Patents
Bridge beam body base plate exposes steel strand tension jack supporting device Download PDFInfo
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- CN204728218U CN204728218U CN201520416863.7U CN201520416863U CN204728218U CN 204728218 U CN204728218 U CN 204728218U CN 201520416863 U CN201520416863 U CN 201520416863U CN 204728218 U CN204728218 U CN 204728218U
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- support
- perforation
- jack
- bracket
- leading screw
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Abstract
The utility model discloses bridge beam body base plate and expose steel strand tension jack supporting device, support is installed with and is positioned at foot and props up the roller of support and be positioned at its middle and upper part and the jack erect, the bracket be positioned at directly over jack is fixedly mounted with at cradle top, the top that jack has is lifted when bar rises or declines and is coordinated contact and support bracket in the mode holding up bracket all the time, the perforation that the support leading screw being positioned at setting immediately below bracket that bracket is fixedly mounted with is provided with through support topmost, support the nut that leading screw is installed and to be arranged at above perforation and in being provided with in it screw thread with support male thread that leading screw peripheral hardware has and to move in the mode of rotating relative to each other and coordinate, the external diameter of nut is greater than the diameter of perforation so that can not be passed down through perforation from perforation top by perforation stops.The utility model operation is simple and easy, and save man power and material, manually easy for installation, efficiency of construction is high, thoroughly solves the technical barrier hanging and lift stretch-draw jack.
Description
Technical field
The utility model belongs to road and bridge construction top and lifts (lifting) equipment, and particularly bridge beam body base plate exposes steel strand tension jack supporting device.
Background technology
Along with the extensive laying of rail, increasing bridge construction constantly occurs, some bridge adopts cantilever pouring construction, some bridge adopts the construction of segmentation support cast-in-place, also some bridge then adopts integral support cast-in-place construction, due to the difference of project organization form, the beam body web prestress wire stretching end of cantilever pouring construction and the construction of segmentation support cast-in-place is all positioned at the end of beam body, the beam body web prestress wire stretching end of integral support cast-in-place construction is adopted then to be exposed at beyond beam body base plate, then cause stretch-draw jack to hang nowhere, be difficult to construction.At present, because the bridge construction be exposed at outside this steel strand beyond beam body base plate is considerably less, the device complex operation of existing support stretch-draw jack, labor intensive and material resources, artificial installation difficulty, efficiency of construction is low, cannot solve the technical barrier hanging and lift stretch-draw jack.
Utility model content
The purpose of this utility model is to provide a kind of bridge beam body base plate to expose steel strand tension jack supporting device, operates simple and easy, and save man power and material, manually easy for installation, efficiency of construction is high, thoroughly solves the technical barrier hanging and lift stretch-draw jack.
The purpose of this utility model is achieved in that a kind of bridge beam body base plate exposes steel strand tension jack supporting device, comprises roller, support, jack, support leading screw, nut and bracket, when bridge beam body base plate exposes the work of steel strand tension jack supporting device, support is installed with and is positioned at foot and props up the roller of support and be positioned at its middle and upper part and the jack erect, the bracket be positioned at directly over jack is fixedly mounted with at cradle top, the top that jack has is lifted when bar rises or declines and is coordinated contact and support bracket in the mode holding up bracket all the time, the perforation that the support leading screw being positioned at setting immediately below bracket that bracket is fixedly mounted with is provided with through support topmost, support the nut that leading screw is installed and to be arranged at above perforation and in being provided with in it screw thread with support male thread that leading screw peripheral hardware has and to move in the mode of rotating relative to each other and coordinate, the largest outer diameter of nut is greater than the diameter of perforation so that can not be passed down through perforation from perforation top by perforation stops.
Use step of the present utility model is: be 1. lifted into by the utility model on the working platform of bridge cast-in-place support, then is lifted on bracket by stretch-draw jack; 2. the top manipulating jack is lifted bar and is risen from initial position, by bracket by stretch-draw jack jacking to treating by tension steel strand place height (support leading screw and jack raise) simultaneously; 3. the utility model is shifted onto the rear for the treatment of by tension steel strand, to treat again by tension steel strand through stretch-draw jack anchoring is good, for preventing jack in tension steel strand process from surprisingly falling after rise, nut screwing clamping (namely must be tightened in and support leading screw lowermost end) to make support by nut fixed support bracket on support; 4. start to treat by tension steel strand until stretch-draw is complete with stretch-draw jack stretch-draw; 5. by stretch-draw jack from loose anchor tension steel strand, retreat the utility model and depart from tension steel strand to make stretch-draw jack, then unscrew nut and then twist it to supporting leading screw top, the top then manipulating jack is lifted bar and is dropped to initial position; 6. whole steel strand tension process terminates; 7. the utility model being pushed to next needs treats by the steel strand whereabouts of stretch-draw, repeats its 1.-6. step, completes the stretch-draw of other steel strand.
The utility model well solves and outer is exposed at that to there is jack installing space in the outer steel strand tension of bridge beam body base plate little, and jack hangs nowhere, and crane cannot be installed, manually install the large problem of security risk.The utility model operation is simple and easy, and save man power and material, manually easy for installation, efficiency of construction is high, thoroughly solves the technical barrier hanging and lift stretch-draw jack.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model;
Fig. 2 is the left TV structure schematic diagram of the utility model;
Fig. 3 is the utility model plan structure schematic diagram.
Detailed description of the invention
A kind of bridge beam body base plate exposes steel strand tension jack supporting device, as shown in Figure 1, Figure 2 and Figure 3, comprises roller 6, support 1, jack 3, supports leading screw 5, nut 4 and bracket 2, when bridge beam body base plate exposes the work of steel strand tension jack supporting device, support 1 is installed with and is positioned at foot and the roller 6 of propping up support 1 and the jack 3 being positioned at its middle and upper part and erectting, the bracket 2 be positioned at directly over jack 3 is fixedly mounted with at support 1 top, the top that jack 3 has is lifted when bar rises or declines and is coordinated contact and support bracket 2 in the mode holding up bracket 2 all the time, the perforation that the support leading screw 5 being positioned at setting immediately below bracket 2 be fixedly mounted with on carrier 2 is provided with through support 1 topmost, support the nut 4 that leading screw 5 is installed and to be arranged at above perforation and in being provided with in it screw thread with support the male thread that is provided with outside leading screw 5 and to move in the mode of rotating relative to each other and coordinate, the largest outer diameter of nut 4 is greater than the diameter of perforation so that can not be passed down through perforation from perforation top by perforation stops.
Claims (1)
1. bridge beam body base plate exposes a steel strand tension jack supporting device, it is characterized in that: comprise roller (6), support (1), jack (3), support leading screw (5), nut (4) and bracket (2), when bridge beam body base plate exposes the work of steel strand tension jack supporting device, support (1) is installed with and is positioned at foot and the roller (6) propping up support (1) and the jack (3) being positioned at its middle and upper part and erectting, the bracket (2) be positioned at directly over jack (3) is fixedly mounted with at support (1) top, the top that jack (3) has is lifted when bar rises or declines and is coordinated contact and support bracket (2) in the mode holding up bracket (2) all the time, the perforation that the support leading screw (5) being positioned at setting immediately below bracket (2) that bracket (2) is fixedly mounted with is provided with through support (1) topmost, support the nut (4) that leading screw (5) install and be arranged at perforation top and the interior screw thread be provided with in it with support the male thread that is provided with outside leading screw (5) and to move in the mode of rotating relative to each other and coordinate, the largest outer diameter of nut (4) is greater than the diameter of perforation so that can not be passed down through perforation from perforation top by perforation stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416863.7U CN204728218U (en) | 2015-06-17 | 2015-06-17 | Bridge beam body base plate exposes steel strand tension jack supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416863.7U CN204728218U (en) | 2015-06-17 | 2015-06-17 | Bridge beam body base plate exposes steel strand tension jack supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204728218U true CN204728218U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416863.7U Active CN204728218U (en) | 2015-06-17 | 2015-06-17 | Bridge beam body base plate exposes steel strand tension jack supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204728218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223204A (en) * | 2016-08-29 | 2016-12-14 | 沈阳市政集团有限公司 | A kind of prestressing force draws high narrow region aids construction stretching chassis and construction method |
| CN107401123A (en) * | 2017-08-11 | 2017-11-28 | 中铁六局集团有限公司 | Portable prestressed stretch-draw servicing unit |
| CN109338896A (en) * | 2018-11-28 | 2019-02-15 | 中国铁建大桥工程局集团有限公司 | A kind of wide cut concrete PK box beam bracket system construction method |
-
2015
- 2015-06-17 CN CN201520416863.7U patent/CN204728218U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223204A (en) * | 2016-08-29 | 2016-12-14 | 沈阳市政集团有限公司 | A kind of prestressing force draws high narrow region aids construction stretching chassis and construction method |
| CN107401123A (en) * | 2017-08-11 | 2017-11-28 | 中铁六局集团有限公司 | Portable prestressed stretch-draw servicing unit |
| CN109338896A (en) * | 2018-11-28 | 2019-02-15 | 中国铁建大桥工程局集团有限公司 | A kind of wide cut concrete PK box beam bracket system construction method |
| CN109338896B (en) * | 2018-11-28 | 2020-12-01 | 中国铁建大桥工程局集团有限公司 | Construction method of broad-width concrete PK box girder support system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |