CN204343122U - Power grid construction self-anchoring type prestressed reinforced concrete skateboard - Google Patents
Power grid construction self-anchoring type prestressed reinforced concrete skateboard Download PDFInfo
- Publication number
- CN204343122U CN204343122U CN201420724823.4U CN201420724823U CN204343122U CN 204343122 U CN204343122 U CN 204343122U CN 201420724823 U CN201420724823 U CN 201420724823U CN 204343122 U CN204343122 U CN 204343122U
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- CN
- China
- Prior art keywords
- slide plate
- skateboard
- reinforced concrete
- power grid
- prestressed reinforced
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- 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.)
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000004873 anchoring Methods 0.000 title claims abstract description 13
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 13
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Abstract
The utility model belongs to electric power network aid field, particularly relates to a kind of power grid construction self-anchoring type prestressed reinforced concrete skateboard.The direction that this structure advances along box culvert, have equidistant concrete slide plate tooth plate at ground upper, slide plate tooth plate upper has slide plate, and slide plate is back beam after contrary with direction of propulsion being provided with, make back depth of beam higher than slide plate, the rear back beam part exceeding slide plate is provided with backplate.The structure of back beam and slide plate after adopting, the problem of digging dark restriction, the restriction of landform backrest, place restriction in municipal large frame structure bridge incremental launching construction can be realized, and this structure is combined firmly with ground, not easily angular deviation occurs in work progress, ensure that precision and the safety of construction.
Description
Technical field
The utility model belongs to electric power network aid field, particularly relates to a kind of electrical network self-anchoring type prestressed reinforced concrete skateboard.
Background technology
In the overpass area of street, be often positioned at crossing, can be usually level crossing, Signalized control.Along with the development in city, the raising of living standards of the people, the traffic volume increases day by day, present situation signalized crossing has had a strong impact on the traffic capacity of road, for playing the effect of city expressway, cancelling signal lamp, needs to arrange interchange overpass in the important node of urban road completely, wears normal employing incremental launching construction mode in the frame core-tube system of another road wherein under a road.Busy due to traffic in city, adopting normal heavy excavation formula to construct will inevitably suspend traffic, and when exceeding ground, both sides for road in addition, incremental launching construction does not have the landform that can utilize as backrest, causes the difficulty of construction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electrical network self-anchoring type prestressed reinforced concrete skateboard, is intended to solve in municipal large frame structure bridge incremental launching construction and digs the problems such as dark restriction, the restriction of landform backrest, place restriction.
The utility model realizes like this, a kind of electrical network self-anchoring type prestressed reinforced concrete skateboard, along the direction that box culvert advances, equidistant concrete slide plate tooth plate is had at ground upper, slide plate tooth plate upper has slide plate, slide plate is back beam after contrary with direction of propulsion being provided with, and described back depth of beam is higher than slide plate, and the rear back beam part exceeding slide plate is provided with backplate.
Further, the width between adjacent skillet tooth plate is 5:1 with the width ratio of slide plate tooth plate.
Further, described slide plate has the inclination angle of 1 ° ~ 5 ° to direction of propulsion.
Further, gravel is filled with in the gap between slide plate tooth plate.
Further, the edge, bottom of rear back beam is provided with rear back beam tooth plate.
Further, described rear back beam is two step hierarchic structures, is high ladder with slide plate connecting place, and the other end is short ladder, and described short ladder is imbedded in gravel.
The utility model compared with prior art, beneficial effect is: the structure of back beam and slide plate after adopting, the problem of digging dark restriction, the restriction of landform backrest, place restriction in municipal large frame structure bridge incremental launching construction can be realized, and this structure is combined with ground firmly, in work progress, not easily there is angular deviation, ensure that precision and the safety of construction.
Spacing and the yardstick of designed tooth plate not only solve construction materials, can also effectively play the effect fixedly secured.
Accompanying drawing explanation
Fig. 1 is the device structure schematic diagram that the utility model embodiment provides;
In figure, 1 is box culvert, and 2 is slide plate, and 3 is backplate, and 4 is rear back beam, and 5 is slide plate tooth plate, and 6 is gravel, and 7 is rear back beam tooth plate, and 8 is high ladder, and 9 is short ladder.
Detailed description of the invention
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.
As shown in Figure 1, a kind of self-anchoring type prestressed reinforced concrete skateboard, along the direction that box culvert 1 advances, has equidistant concrete slide plate tooth plate 5 at ground upper, slide plate tooth plate 5 upper has slide plate 2, slide plate 2 is back beam 4 after contrary with direction of propulsion being provided with, and rear back beam 4 height is higher than slide plate 2, and the edge, bottom of rear back beam is provided with rear back beam tooth plate 7, rear back beam 4 is two step hierarchic structures, be high ladder 8 with slide plate connecting place, the other end is short ladder 9, and short ladder is imbedded in gravel.Width between adjacent skillet tooth plate is 5:1 with the width ratio of slide plate tooth plate, is filled with gravel 6 in the gap between slide plate tooth plate.The rear back beam part exceeding slide plate 2 is provided with backplate 3, and the backplate adopted is for having the thick steel panel of 20mm.Slide plate has the inclination angle of 1 ° ~ 5 ° to direction of propulsion.
Adopt the utility model to carry out the construction of frame structure main body jacking method, construction process is as follows:
1, circuit roadbed both sides adopt hole digging pile protection;
2, frame core-tube system body of work hole is excavated;
3, slide plate, guiding pier, separation layer, back beam steel bar colligation and concrete cast; Reach after design strength until concrete strength, carry out tension steel strand.
4, frame core-tube system main body reinforcing bar binding and concrete cast; Concrete cast need pay special attention to concrete hydrating heat affecting, after concrete vibrating is complete, strengthens maintenance, both sides and face all covers layer of plastic film and adds two layers of straw bag, in case internal-external temperature difference is excessive, produces shrinkage crack.After frame structure concrete strength reaches design strength, carry out jacking operation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; 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 (6)
1. a power grid construction self-anchoring type prestressed reinforced concrete skateboard, it is characterized in that, along the direction that box culvert advances, equidistant concrete slide plate tooth plate is had at ground upper, slide plate tooth plate upper has slide plate, slide plate is back beam after contrary with direction of propulsion being provided with, and described back depth of beam is higher than slide plate, and the rear back beam part exceeding slide plate is provided with backplate.
2. power grid construction self-anchoring type prestressed reinforced concrete skateboard as claimed in claim 1, is characterized in that, the width between adjacent skillet tooth plate is 5:1 with the width ratio of slide plate tooth plate.
3. power grid construction self-anchoring type prestressed reinforced concrete skateboard as claimed in claim 1, it is characterized in that, described slide plate has the inclination angle of 1 ° ~ 5 ° to direction of propulsion.
4. power grid construction self-anchoring type prestressed reinforced concrete skateboard as claimed in claim 1, is characterized in that, be filled with gravel in the gap between slide plate tooth plate.
5. power grid construction self-anchoring type prestressed reinforced concrete skateboard as claimed in claim 1, it is characterized in that, the edge, bottom of rear back beam is provided with rear back beam tooth plate.
6. power grid construction self-anchoring type prestressed reinforced concrete skateboard as claimed in claim 5, it is characterized in that, described rear back beam is two step hierarchic structures, is high ladder with slide plate connecting place, and the other end is short ladder, and described short ladder is imbedded in gravel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724823.4U CN204343122U (en) | 2014-11-26 | 2014-11-26 | Power grid construction self-anchoring type prestressed reinforced concrete skateboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724823.4U CN204343122U (en) | 2014-11-26 | 2014-11-26 | Power grid construction self-anchoring type prestressed reinforced concrete skateboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204343122U true CN204343122U (en) | 2015-05-20 |
Family
ID=53226401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420724823.4U Active CN204343122U (en) | 2014-11-26 | 2014-11-26 | Power grid construction self-anchoring type prestressed reinforced concrete skateboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204343122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808735A (en) * | 2022-05-20 | 2022-07-29 | 中铁建大桥工程局集团第四工程有限公司 | Jacking construction control method for frame-structure bridge |
-
2014
- 2014-11-26 CN CN201420724823.4U patent/CN204343122U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808735A (en) * | 2022-05-20 | 2022-07-29 | 中铁建大桥工程局集团第四工程有限公司 | Jacking construction control method for frame-structure bridge |
| CN114808735B (en) * | 2022-05-20 | 2023-09-12 | 中铁建大桥工程局集团第四工程有限公司 | Frame bridge jacking construction control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |