CN219690312U - Cable sleeve structure of steel box girder cable-stayed bridge - Google Patents
Cable sleeve structure of steel box girder cable-stayed bridge Download PDFInfo
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- CN219690312U CN219690312U CN202320325783.5U CN202320325783U CN219690312U CN 219690312 U CN219690312 U CN 219690312U CN 202320325783 U CN202320325783 U CN 202320325783U CN 219690312 U CN219690312 U CN 219690312U
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- cable
- cable sleeve
- box girder
- steel box
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 28
- 238000009434 installation Methods 0.000 abstract description 19
- 239000011148 porous material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a cable sleeve structure of a cable-stayed bridge of a steel box girder, wherein a structural diaphragm is arranged in the steel box girder, and an anchor box structure is fixedly arranged on the structural diaphragm; the anchor box structure comprises side plates which are symmetrically arranged, sealing plates are symmetrically and vertically fixed at the top end and the bottom end of the side plates, and a four-side closed anchor box structure is formed; the bottom end of the anchor box structure is fixed with a seat plate and an anchor backing plate; the cable sleeve is arranged in the anchor box structure, the top end of the cable sleeve penetrates through the bridge deck of the steel box girder, and a pore sealing plate is fixed at the junction of the cable sleeve and the bridge deck. The structure and the post-installation construction method adopt the method of movably arranging the cable sleeve at the post, then adopting the construction site to reposition and adjust the cable sleeve and the stay cable, and then fixing the cable sleeve, thereby effectively overcoming the accumulated error influence of the installation elevation deviation and the mileage deviation of each steel box girder segment in the hoisting construction of the steel box girder segment and ensuring that the actual coordinates of the cable sleeve meet the construction requirements.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a steel box girder cable-stayed bridge cable sleeve structure and a post-installation method.
Background
The installation accuracy of the cable-stayed bridge cable sleeve is directly related to the safe use of the cable structure, in particular to a steel box girder cable-stayed bridge, the steel box girder is processed according to the manufacturing line shape, the installation coordinates of the cable sleeve are obtained through theoretical calculation and the installation is completed in the field, for example, a steel box girder cable-stayed bridge cable-anchored structure disclosed in CN 208933827U and an anchor plate component for the cable-stayed bridge disclosed in CN 211689847U are all installation structures for processing the pre-fixed cable sleeve in the field.
However, for a steel box girder cable-stayed bridge with large span and complex structure, when in field installation construction, the cable-stayed bridge is influenced by the accumulated error of the installation elevation deviation and the mileage deviation of each steel box girder segment in the segment hoisting construction, the deviation exists between the positioning coordinates of a cable sleeve in the theoretical manufacturing line shape and the actual positioning coordinates, the position interference of the cable-stayed cable and the cable sleeve is very easy to be caused, friction is generated when the cable-stayed bridge is operated and used, the cable-stayed cable is worn, and the safety and the quality hidden trouble are very large.
Disclosure of Invention
The utility model aims to provide a cable sleeve structure of a steel box girder cable-stayed bridge, which is characterized in that the cable sleeve is movably arranged at the rear, the cable sleeve and a stay cable are repositioned and adjusted at a construction site, and the method of post fixing is adopted, so that the influence of accumulated errors of installation elevation deviation and mileage deviation of each steel box girder segment in hoisting construction of the steel box girder segment is effectively overcome, the actual coordinates of the cable sleeve are ensured to meet the construction requirement, the implementation is convenient, and the construction quality of the stay cable is ensured.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the cable sleeve structure of the cable-stayed bridge of the steel box girder comprises the steel box girder, wherein a construction diaphragm plate is arranged in the steel box girder, and an anchor box structure is fixedly arranged on the construction diaphragm plate;
the anchor box structure comprises side plates which are symmetrically arranged, sealing plates are symmetrically and vertically fixed at the top end and the bottom end of the side plates, and a four-side closed anchor box structure is formed;
the bottom end of the anchor box structure is fixed with a seat plate and an anchor backing plate;
the cable sleeve is arranged in the anchor box structure, the top end of the cable sleeve penetrates through the bridge deck of the steel box girder, and a pore sealing plate is fixed at the junction of the cable sleeve and the bridge deck.
The cable sleeve is in a free state without welding or fixing with each structure of the steel box girder before the manufacturing and hoisting are completed.
The sealing plate, the seat plate, the structural diaphragm plate and the inhaul cable diaphragm plate are welded and fixed to form a stressed whole.
The anchor backing plate is only welded and fixed with the seat plate.
And the hole sealing plate is welded and fixed with the bridge deck and the cable sleeve after the position of the cable sleeve is adjusted in place.
And reinforcing plates are fixed among the side plates, the sealing plates and the outer walls of the seat plates.
The utility model has the following beneficial effects:
1. the structure and the post-installation construction method adopt the method of movably arranging the cable sleeve at the back, then adopting the construction site to reposition and adjust the cable sleeve and the stay cable, and then fixing the cable sleeve and the stay cable, thereby effectively overcoming the influence of accumulated errors of installation elevation deviation and mileage deviation of each steel box girder segment in hoisting construction of the steel box girder segment, ensuring that the actual coordinates of the cable sleeve meet the construction requirement, being convenient to implement and ensuring the construction quality of the stay cable.
2. The structure of the utility model can eliminate the deviation between the positioning coordinates of the cable sleeve and the actual positioning coordinates in the theoretical manufacturing line of the steel box girder, avoid the position interference of the stay cable and the cable sleeve caused by adopting a conventional method, and ensure the construction quality.
3. The utility model does not need a measuring instrument to position and loft the cable sleeve, has simple operation, does not occupy the hoisting period of the steel box girder, and saves time and labor.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a cross section of a cable sleeve structure of a cable-stayed bridge of a steel box girder.
Fig. 2 is a schematic vertical section view of the cable-stayed bridge cable sleeve structure of the steel box girder.
FIG. 3 is a diagram of a construction method of the present utility model.
In the figure, a pore sealing plate 1, a cable sleeve 2, a bridge deck 3, a sealing plate 4, side plates 5, a seat plate 6, an anchor backing plate 7, a construction diaphragm plate 8, a cable diaphragm plate 9, a steel box girder 10, an anchor box structure 11 and a stiffening plate 12.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-2, a steel box girder cable-stayed bridge cable sleeve structure comprises a steel box girder 10, wherein a construction diaphragm plate 8 is arranged in the steel box girder 10, and an anchor box structure 11 is fixedly arranged on the construction diaphragm plate 8; the anchor box structure 11 comprises side plates 5 which are symmetrically arranged, sealing plates 4 are symmetrically and vertically fixed at the top end and the bottom end of the side plates 5, and the anchor box structure 11 with four closed surfaces is formed; the bottom end of the anchor box structure 11 is fixed with a seat plate 6 and an anchor backing plate 7; the cable sleeve 2 is arranged in the anchor box structure 11, the top end of the cable sleeve 2 penetrates through the bridge deck plate 3 of the steel box girder 10, and the pore sealing plate 1 is fixed at the junction of the cable sleeve 2 and the bridge deck plate 3. Through adopting foretell structure, in concrete work progress, can eliminate the deviation of cable sleeve locating coordinate and actual locating coordinate in the steel box girder theory manufacturing line shape, the stay cable that causes when avoiding adopting conventional method with cable sleeve position interference, need not measuring instrument to fix a position the lofting to the cable sleeve when implementing, easy operation does not occupy steel box girder hoisting period, labour saving and time saving has ensured construction quality.
Furthermore, the cable sleeve 2 is in a free state without welding or fixing with each structure of the steel box girder before the manufacturing and hoisting are completed. Through the arrangement mode, the cable sleeve 2 is ensured to be fixed after reaching a construction site, and then the installation and positioning errors of the cable sleeve 2 in the manufacturing process are effectively eliminated.
Further, the sealing plate 4 and the seat plate 6 are welded and fixed with the structural diaphragm plate 8 and the inhaul cable diaphragm plate 9 to form a stressed whole. The whole structure can form a stressed whole, so that the reliability of the fixed installation of the whole cable sleeve 2 is ensured, and the structural strength and stability are ensured.
Further, the anchor pad 7 is welded and fixed only to the seat plate 6. By the above
Further, the sealing hole plate 1 is welded and fixed with the bridge deck 3 and the cable sleeve 2 after the cable sleeve 2 is adjusted in place. Through foretell fixed knot constructs behind, guaranteed the location precision of cable sleeve 2 in the follow-up concrete on-the-spot installation, avoided traditional theory to make the cable sleeve location coordinate in the alignment and the actual location coordinate requirement exist deviation, avoid stay cable and cable sleeve position interference, effectively overcome and produced friction when the cable-stayed bridge operation is used, wearing and tearing the stay cable, safety, quality hidden danger.
Further, reinforcing plates 12 are fixed among the side plates 5, the sealing plates 4 and the outer walls of the seat plates 6. The strength and stability of the connection of the side plates 5, the sealing plates 4 and the seat plates 6 with the stiffening plates 12 are enhanced by the stiffening plates 12.
Example 2:
referring to fig. 3, a post-installation construction method of a cable-stayed bridge cable sleeve structure of a steel box girder comprises the following steps:
step one, in-situ processing of the steel box girder 10:
assembling the structural diaphragm plates 8 in a total assembly field of the steel box girder according to a design drawing to finish welding and installing the skeleton structure of the sections of the steel box girder 10;
step two, in-situ processing of the anchor box structure 11:
the anchor backing plate 7 and the seat plate 6 are welded into a whole, and the three are welded at the connection position of the structural diaphragm plate 8 and the inhaul cable diaphragm plate 9 according to the space coordinates of the side plate 5, the sealing plate 4 and the seat plate 6 in the manufacturing line shape, so that the installation of the anchor box structure 11 is completed;
step three, in-situ processing of the residual steel box girder 10:
splicing and installing the residual structure of the steel box girder 10, and inserting the cable sleeve 2 into the anchor box structure 11 by adopting hoisting equipment to complete the round total splicing of the steel box girder 10;
fourth, installing and constructing the bridge site of the steel box girder 10:
the completed total spliced steel box girder 10 is transported to a hoisting position in sections, lifted, the height and mileage coordinates of the steel box girder are adjusted, the requirement of mounting precision is met, the accurate positioning and splicing construction of the steel box girder is completed, and a stay cable is mounted and tensioned;
step five, installing and constructing bridge sites of the residual steel box girders 10:
completing the assembly of the segments of the residual steel box girder 10 and the installation construction of the stay ropes in sequence according to the step four until the full bridge is closed;
step six, rear fixing of the cable sleeve 2:
the positions of the cable sleeve 2 placed in the steel anchor box 10 are adjusted one by one, so that the mounted stay cable is positioned at the center of the cable sleeve 2, the cable sleeve 2 is fixed by welding the pore sealing plate 1, and the installation of the shock absorber and the corresponding structure of the cable sleeve 2 is completed.
Claims (6)
1. A steel box girder cable-stayed bridge cable sleeve structure is characterized in that: the steel box girder comprises a steel box girder (10), wherein a structural diaphragm plate (8) is arranged in the steel box girder (10), and an anchor box structure (11) is fixedly arranged on the structural diaphragm plate (8);
the anchor box structure (11) comprises side plates (5) which are symmetrically arranged, sealing plates (4) are symmetrically and vertically fixed at the top end and the bottom end of the side plates (5) and form the anchor box structure (11) with four closed sides;
the bottom end of the anchor box structure (11) is fixed with a seat plate (6) and an anchor backing plate (7);
the cable sleeve (2) is arranged in the anchor box structure (11), the top end of the cable sleeve (2) penetrates through the bridge deck (3) of the steel box girder (10), and a hole sealing plate (1) is fixed at the junction of the cable sleeve (2) and the bridge deck (3).
2. A steel box girder cable-stayed bridge cable sleeve structure according to claim 1, wherein: the cable sleeve (2) is not welded or fixed with each structure of the steel box girder before the manufacturing and hoisting are completed, and is in a free state.
3. A steel box girder cable-stayed bridge cable sleeve structure according to claim 1, wherein: the sealing plate (4), the seat plate (6) and the structural diaphragm plate (8) and the inhaul cable diaphragm plate (9) are welded and fixed to form a stressed whole.
4. A steel box girder cable-stayed bridge cable sleeve structure according to claim 1, wherein: the anchor backing plate (7) is only welded and fixed with the seat plate (6).
5. A steel box girder cable-stayed bridge cable sleeve structure according to claim 1, wherein: the hole sealing plate (1) is welded and fixed with the bridge deck (3) and the cable sleeve (2) after the position of the cable sleeve (2) is adjusted in place.
6. A steel box girder cable-stayed bridge cable sleeve structure according to claim 1, wherein: and reinforcing plates (12) are fixed among the side plates (5), the sealing plates (4) and the outer walls of the seat plates (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320325783.5U CN219690312U (en) | 2023-02-27 | 2023-02-27 | Cable sleeve structure of steel box girder cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320325783.5U CN219690312U (en) | 2023-02-27 | 2023-02-27 | Cable sleeve structure of steel box girder cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219690312U true CN219690312U (en) | 2023-09-15 |
Family
ID=87945583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320325783.5U Active CN219690312U (en) | 2023-02-27 | 2023-02-27 | Cable sleeve structure of steel box girder cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219690312U (en) |
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2023
- 2023-02-27 CN CN202320325783.5U patent/CN219690312U/en active Active
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