CN219175013U - Whole support that moves down of double-deck overhead bridge - Google Patents
Whole support that moves down of double-deck overhead bridge Download PDFInfo
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- CN219175013U CN219175013U CN202223083467.6U CN202223083467U CN219175013U CN 219175013 U CN219175013 U CN 219175013U CN 202223083467 U CN202223083467 U CN 202223083467U CN 219175013 U CN219175013 U CN 219175013U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000010276 construction Methods 0.000 claims abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000011120 plywood Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 abstract description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of double-layer concrete box girder construction, in particular to a whole downward moving bracket of a double-layer overhead bridge, which comprises a pier and a cast-in-situ box girder, and further comprises: the support comprises an inclined strut steel pipe, wherein a supporting point is arranged on the pier through an embedded steel plate, a bracket is arranged on the supporting point, and the inclined strut steel pipe is arranged on one side of the pier; the support beam is characterized in that the support point is also provided with I-steel, one end of the I-steel is fixedly connected with one end of the diagonal bracing steel pipe, and the bearing beam is arranged above the I-steel.
Description
Technical Field
The utility model relates to the technical field of double-layer concrete box girder construction, in particular to a whole downward moving bracket of a double-layer overhead bridge.
Background
When constructing the double-layer concrete cast-in-situ box girder, the traditional bracket erection mode is to construct foundation treatment or steel pipe piles, erect steel upright columns, erect column top distribution beams and an upper support structure, and the box girder construction sequence is a construction method of respectively erecting from top to bottom and respectively casting in situ.
However, the traditional construction method causes more times of mounting and dismounting the bracket, and the lower construction of complicated procedures is needed after the upper construction is finished, so that the turnover period of materials is increased, and the construction efficiency is low;
and secondly, the use cost of a large amount of consumables, such as the use cost of the bailey beam bracket, is increased, and when the bridge is high or geology is poor, the cost for erecting the steel upright post is also high.
Disclosure of Invention
The utility model aims to provide a double-deck overhead bridge integral downward-moving bracket so as to solve the problems in the background technology.
The technical scheme of the utility model is as follows: the whole support that moves down of double-deck overhead bridge includes pier and cast-in-situ box girder, still includes:
the support comprises an inclined strut steel pipe, wherein a supporting point is arranged on the pier through an embedded steel plate, a bracket is arranged on the supporting point, and the inclined strut steel pipe is arranged on one side of the pier;
the support point is also provided with I-steel, one end of the I-steel is fixedly connected with one end of the diagonal bracing steel pipe, and the support beam is arranged above the I-steel;
the bottom of pier is provided with the cushion cap, the bottom of cast-in-situ box girder and the top of cushion cap are all fixed mounting has the assembly pulley, the hoist engine is installed to one side outer wall of pier, extend out wire rope in the hoist engine, wire rope bypasses the assembly pulley, and wire rope's one end and the top fixed connection of spandrel girder.
Preferably, the top of the I-steel is provided with a drop block, and the spandrel girder is arranged above the drop block.
Preferably, the spandrel girder comprises a beret girder, a distribution cross girder, square lumber and a bamboo plywood.
Preferably, locating steel bars, embedded steel bars, a first locating plate and a second locating plate are arranged at the supporting points on the inner wall of the bridge pier.
Preferably, a construction work platform is arranged at the top of the spandrel girder.
Compared with the prior art, the utility model provides the whole downward moving bracket of the double-layer overhead bridge by improvement, and has the following improvement and advantages:
according to the utility model, the winch is started to synchronize the lower steel wire rope, the pier self-bearing is utilized to avoid the lower supporting structure from being built, the upper layer can be integrally lifted to the lower layer after being constructed, the mounting and dismounting time is saved, the good construction effect can be obtained, the construction work efficiency is improved, the assembly is simple, the use cost is low, and the bracket assembly efficiency is accelerated.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic elevational view of the present utility model in construction of an upper deck box girder;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a schematic elevational view of the present utility model with the stand lowered;
FIG. 4 is a schematic elevational view of the present utility in constructing an underlying box girder;
FIG. 5 is a schematic plan view of the construction of the present utility model;
fig. 6 is a schematic plan view of the utility model in a down-shifted state.
Reference numerals illustrate:
1. diagonal bracing of the steel pipe; 2. i-steel; 3. pulley block; 4. a wire rope; 5. a hoist; 6. unloading the block; 7. positioning reinforcing steel bars; 8. embedding reinforcing steel bars; 9. a first positioning plate; 10. a positioning plate II; 11. a construction operation platform; 12. a spandrel girder; 13. bridge piers; 14. a bracket; 15. and (5) casting the box girder in situ.
Detailed Description
The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a double-deck overhead bridge integral downward-moving bracket through improvement, and the technical scheme of the utility model is as follows:
as shown in fig. 1 to 6, the whole downward moving bracket of the double-deck overhead bridge comprises a pier 13 and a cast-in-situ box girder 15, and further comprises:
the support comprises a diagonal bracing steel pipe 1, wherein the diagonal bracing steel pipe 1 is 609 multiplied by 10mm, a support point is arranged on a pier 13 through an embedded steel plate, a bracket 14 is arranged on the support point, and the diagonal bracing steel pipe 1 is arranged on one side of the pier 13;
the supporting point is also provided with an I-steel 2, one end of the I-steel 2 is fixedly connected with one end of the diagonal bracing steel pipe 1, and the supporting beam 12 is arranged above the I-steel 2;
the bottom of pier 13 is provided with the cushion cap, and the bottom of cast-in-situ box girder 15 and the top of cushion cap are all fixed mounting has assembly pulley 3, and hoist engine 5 is installed to one side outer wall of pier 13, and extend out wire rope 4 in the hoist engine 5, and wire rope 4 walks around assembly pulley 3, and the one end of wire rope 4 and the top fixed connection of spandrel girder 12 drive wire rope 4 rolling through hoist engine 5 and realize the effect that pending spandrel girder 12 reciprocated.
Further, a drop block 6 is arranged at the top of the I-steel 2, and a spandrel girder 12 is arranged above the drop block 6.
Further, the spandrel girder 12 includes a bailey girder 321, a square lumber 10×10cm, and a bamboo plywood 15cm thick.
Further, a locating steel bar 7, an embedded steel bar 8, a first locating plate 9 and a second locating plate 10 are arranged at the supporting point of the inner wall of the bridge pier 13.
Further, a construction work platform 11 is provided on top of the spandrel girder 12.
The support system does not need a floor foundation, steel plates are embedded on the bridge piers 13 to serve as supporting points of the support, corbels 14 and diagonal bracing steel pipes 1 are arranged on the supporting points, vertical compression rods are arranged between the diagonal bracing steel pipes 1 to bear the longitudinal bridge pressure of the diagonal bracing steel pipes 1, transverse large cross beams are arranged on the corbels 14 and the diagonal bracing steel pipes 1 to serve as supporting points of the bailey beams, the bailey beams are transversely assembled, and small distribution cross beams are arranged on the bailey beams.
An embedded part (an embedded steel plate and the like) is arranged at the end part of the cast-in-situ box girder 15 and used as a stress point for integrally hoisting and downwards moving a bracket, after the cast-in-situ box girder 15 is poured and prestressed tensioning is finished, the bracket is unloaded, a supporting structure (a cross beam, a bailey beam, a distribution cross beam and a template) above the cross beam is hoisted by using a hoisting machine 5, an upper bracket 14 and a diagonal bracing steel pipe 1 are removed, the whole downwards moving of the spandrel girder 12 to the bracket 14 and the diagonal bracing steel pipe 1 which are manufactured in advance is realized by loosening a steel wire rope 4, and then the construction work of the next layer of box girder is continued.
The support supporting system mainly comprises bracket 14 and triangle diagonal bracing steel pipe 1, the lower moving system mainly comprises 16 sets of pulley blocks 3 and windlass 5, the upper pulley block 3 is fixed at the end part of cast-in-situ box girder 15, the lower pulley block 3 is fixed on a bearing platform, the windlass 5 is fixed on a pier 13 or a bearing platform, the starting point of a steel wire rope 4 is fixed on a column top cross beam or the top of a spandrel girder 12, the end point of the steel wire rope 4 is fixed on the windlass 5, and the windlass 5 can realize the downward movement of the integral formwork (spandrel girder 12) by synchronizing the lower steel wire rope 4 in the downward movement process.
The device has simple structure, no need of complex mechanical structure and equipment, simple device assembly, simple use and operation and low use cost, and accelerates the bracket assembly by more than one time.
Claims (5)
1. The whole support that moves down of double-deck overhead bridge, including pier (13) and cast-in-place case roof beam (15), its characterized in that: further comprises:
the support comprises an inclined support steel pipe (1), wherein supporting points are arranged on the bridge piers (13) through pre-buried steel plates, corbels (14) are arranged on the supporting points, and the inclined support steel pipe (1) is arranged on one side of the bridge piers (13);
the bearing beam (12) is further provided with an I-steel (2) on the supporting point, one end of the I-steel (2) is fixedly connected with one end of the diagonal bracing steel pipe (1), and the bearing beam (12) is arranged above the I-steel (2);
the bottom of pier (13) is provided with the cushion cap, the bottom of cast-in-place case roof beam (15) and the top of cushion cap are all fixed mounting has assembly pulley (3), hoist engine (5) are installed to one side outer wall of pier (13), extend out wire rope (4) in hoist engine (5), wire rope (4) walk around assembly pulley (3), and the top fixed connection of one end and spandrel girder (12) of wire rope (4).
2. The double-deck overhead bridge integral downward moving bracket according to claim 1, wherein: the top of I-steel (2) is provided with and falls piece (6), spandrel girder (12) set up in the top of unloading piece (6).
3. The double-deck overhead bridge integral downward moving bracket according to claim 1, wherein: the spandrel girder (12) comprises a bailey girder, a distribution cross girder, square timber and a bamboo plywood.
4. The double-deck overhead bridge integral downward moving bracket according to claim 1, wherein: the support points on the inner wall of the bridge pier (13) are provided with positioning steel bars (7), embedded steel bars (8), a first positioning plate (9) and a second positioning plate (10).
5. The double-deck overhead bridge integral downward moving bracket according to claim 1, wherein: the top of the spandrel girder (12) is provided with a construction operation platform (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083467.6U CN219175013U (en) | 2022-11-21 | 2022-11-21 | Whole support that moves down of double-deck overhead bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083467.6U CN219175013U (en) | 2022-11-21 | 2022-11-21 | Whole support that moves down of double-deck overhead bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219175013U true CN219175013U (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223083467.6U Active CN219175013U (en) | 2022-11-21 | 2022-11-21 | Whole support that moves down of double-deck overhead bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN219175013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752450A (en) * | 2023-07-14 | 2023-09-15 | 中交第一航务工程局有限公司 | A support system and construction method for the upper beam of a double-layer bridge |
| CN117005305A (en) * | 2023-07-05 | 2023-11-07 | 中国铁建港航局集团有限公司 | Construction method for constructing upper capping beam in prestressed concrete common pier section |
-
2022
- 2022-11-21 CN CN202223083467.6U patent/CN219175013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005305A (en) * | 2023-07-05 | 2023-11-07 | 中国铁建港航局集团有限公司 | Construction method for constructing upper capping beam in prestressed concrete common pier section |
| CN116752450A (en) * | 2023-07-14 | 2023-09-15 | 中交第一航务工程局有限公司 | A support system and construction method for the upper beam of a double-layer bridge |
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