CN219653524U - Temporary support is assembled to steel case roof beam cable-stayed bridge single-column internal inclination steel tower bridge position - Google Patents
Temporary support is assembled to steel case roof beam cable-stayed bridge single-column internal inclination steel tower bridge position Download PDFInfo
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- CN219653524U CN219653524U CN202320678400.2U CN202320678400U CN219653524U CN 219653524 U CN219653524 U CN 219653524U CN 202320678400 U CN202320678400 U CN 202320678400U CN 219653524 U CN219653524 U CN 219653524U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 169
- 239000010959 steel Substances 0.000 title claims abstract description 169
- 238000010276 construction Methods 0.000 abstract description 19
- 238000003466 welding Methods 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a temporary support for splicing a single-column inward-tilting steel tower bridge position of a steel box girder cable-stayed bridge, which comprises vertical splicing components and horizontal splicing components, wherein the top surfaces of the vertical splicing components are distributed in an inclined manner and are abutted against the side surfaces of a lower steel tower, the splicing parts of the lower steel tower are respectively provided with the vertical splicing components, and the vertical splicing components are fixed on a bearing platform; the top surface of the horizontal assembly component is propped against the side surface of the upper steel tower, the horizontal assembly components are all installed at the splicing parts of the upper steel tower, and the horizontal assembly components are fixed on the riverbed; the steel towers at the hinge positions between the upper steel tower and the lower steel tower are respectively abutted by the vertical assembly component and the horizontal assembly component, and the vertical assembly component and the horizontal assembly component are both fixed on the bearing platform; the utility model ensures the strength, rigidity and stability required by the steel tower assembly bracket, can also reduce the assembly difficulty of the steel tower, improve the construction efficiency, shorten the construction period and save the construction cost.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a temporary support for splicing a single-column inward-tilting steel tower bridge position of a steel box girder cable-stayed bridge.
Background
With the progress of the age, the economic development and the improvement of the aesthetic level of the public, more and more bridge structures with unique shapes are in the field of view of the public. The cable-stayed bridge has been widely used in bridge industry by virtue of the characteristics of large span and attractive appearance, and is generally constructed by adopting a vertical rotation method. At present, a construction scheme of firstly horizontally splicing and then vertically rotating is generally selected for a cable-stayed bridge cable tower, if the vertical rotation is to be smooth, the horizontal splicing of a steel tower is required, and if the horizontal splicing of the steel tower is smooth, a good construction support is required, so that a good temporary construction support for bridge position splicing is also one of the keys of successful vertical rotation. Because the uniqueness of the structural design of the single-column internal tilting steel tower of the steel box girder cable-stayed bridge and the particularity of the geographic position, the existing temporary bridge position assembling construction support cannot meet the strength, rigidity and stability required by the construction of the steel tower, and a new temporary bridge position assembling support needs to be designed.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the temporary support for splicing the single-column inward-tilting steel tower bridge position of the steel box girder cable-stayed bridge, which has good strength and high stability.
The utility model aims at solving the problems by adopting the technical scheme that the temporary support for splicing the single-column inward-tilting steel tower bridge of the steel box girder cable-stayed bridge comprises vertical splicing components and horizontal splicing components, wherein the top surfaces of the vertical splicing components are obliquely distributed and abut against the side surfaces of a lower steel tower, the vertical splicing components are arranged at splicing parts of the lower steel tower, and the vertical splicing components are fixed on a bearing platform; the top surface of the horizontal assembly component is propped against the side surface of the upper steel tower, the horizontal assembly component is installed at the splicing parts of the upper steel tower, and the horizontal assembly component is fixed on a river bed; the steel towers at the hinged positions between the upper steel tower and the lower steel tower are respectively abutted against the vertical assembly and the horizontal assembly, and the vertical assembly and the horizontal assembly are fixed on a bearing platform.
The beneficial effects of the utility model are as follows: compared with the prior art, the vertical assembly component and the horizontal assembly component are arranged, the vertical assembly component is used for propping against the lower steel tower, the horizontal assembly component is used for propping against the upper steel tower, so that the strength, the rigidity and the stability of the steel tower assembly support are ensured, the assembly difficulty of the steel tower can be reduced, the construction efficiency is improved, the construction period is shortened, and the construction cost is saved.
Preferably, the vertical assembly component comprises a first steel pipe pile support, a first I-shaped beam and a first cushion block, wherein the bottom of the first steel pipe pile support is fixed on the bearing platform, the first I-shaped beam is installed on the top end face of the first steel pipe pile support through a first steel plate, the first cushion block is installed on the first I-shaped beam, and the first cushion block is abutted against the side face of the lower steel tower; through the setting of above-mentioned structure for vertical subassembly of assembling's intensity is better, thereby makes the stability that supports lower part steel tower also better, ensures the security of construction.
Preferably, the top surface of the first steel pipe pile bracket is distributed in an inclined shape and is consistent with the inclination of the lower steel tower; therefore, the stress of the lower steel tower in the inclined direction is all on the first steel pipe pile bracket, so that the stability in the construction of the steel tower is ensured.
Preferably, the first cushion block is a cushion block in a wedge shape, and the wedge surface of the first cushion block is matched with and abutted against the side surface of the lower steel tower; therefore, the laminating degree between the side surface of the lower steel tower and the vertical splicing assembly is better, so that the stability in the construction process is ensured, and the splicing precision of the steel tower can be improved.
Preferably, the first steel pipe pile support comprises four first steel pipe piles, a rectangular steel pipe pile support is enclosed between the four first steel pipe piles, and a transverse support is installed between the adjacent first steel pipe piles; through the setting of above-mentioned structure for the intensity of first steel-pipe pile support is better, ensures the security in the work progress.
Preferably, the horizontal assembly component comprises a second steel pipe pile support, a second I-shaped beam and a second cushion block, wherein the bottom of the second steel pipe pile support is fixed on the river bed, the second I-shaped beam is installed on the top end face of the second steel pipe pile support through a second steel plate, the second cushion block is installed on the second I-shaped beam, and the second cushion block is abutted against the side face of the upper steel tower; through the setting of above-mentioned structure for horizontal subassembly of assembling's intensity is better, thereby makes the stability that supports upper portion steel tower also better, ensures the security of construction.
Preferably, the second steel pipe pile support comprises four second steel pipe piles, a rectangular steel pipe pile support is enclosed between the four second steel pipe piles, a scissor brace is installed between the adjacent second steel pipe piles, and the scissor brace is located at the upper part of the second steel pipe pile support; through the setting of above-mentioned structure for the intensity of second steel-pipe pile support is better, ensures the security in the work progress.
Drawings
Fig. 1 is a schematic view of the front view of the bracket of the present utility model.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
The reference numerals in the drawings are respectively: 1. a vertical assembly component; 2. a horizontal assembly component; 3. a lower steel tower; 4. bearing platform; 5. an upper steel tower; 6. a river bed; 7. a steel tower at the hinge joint; 8. a splice; 11. a first steel pipe pile support; 12. a first I-beam; 13. a first pad; 14. a first steel plate; 11-1, a first steel pipe pile; 11-2, transverse struts; 21. a second steel pipe pile bracket; 22. a second I-beam; 23. a second cushion block; 24. a second steel plate; 21-1, a second steel pipe pile; 21-2, a scissors support.
Detailed Description
The utility model will be described in detail below with reference to the attached drawings: as shown in fig. 1 and 2, the vertical type assembly device comprises a vertical type assembly component 1 and a horizontal type assembly component 2, wherein the top surfaces of the vertical type assembly component 1 are distributed in an inclined mode and are abutted against the side surfaces of a lower steel tower 3, the vertical type assembly component 1 is installed at splicing parts 8 of the lower steel tower 3, and the vertical type assembly component 1 is fixed on a bearing platform 4; the top surface of the horizontal assembly component 2 is propped against the side surface of the upper steel tower 5, the horizontal assembly component 2 is installed at the splicing parts 8 of the upper steel tower 5, and the horizontal assembly component 2 is fixed on the river bed 6; the steel tower 7 at the hinge position between the upper steel tower 5 and the lower steel tower 3 is propped against the vertical assembly 1 and the horizontal assembly 2 respectively, and the vertical assembly 1 and the horizontal assembly 2 are fixed on the bearing platform 4.
The vertical assembly component 1 comprises a first steel pipe pile support 11, a first I-shaped beam 12 and a first cushion block 13, wherein the bottom of the first steel pipe pile support 11 is fixed on a bearing platform 4, the first I-shaped beam 12 is arranged on the top end face of the first steel pipe pile support 11 through a first steel plate 14, the first cushion block 13 is arranged on the first I-shaped beam 12 in a welding mode, and the first cushion block 13 abuts against the side face of the lower steel tower 3. The top surface of the first steel pipe pile holder 11 is inclined and distributed in accordance with the inclination of the lower tower 3. The first cushion block 13 is a cushion block in a wedge shape, and the wedge surface of the first cushion block 13 is matched with and abutted against the side surface of the lower steel tower 3. The first steel pipe pile support 11 comprises four first steel pipe piles 11-1, a rectangular steel pipe pile support is formed by surrounding the four first steel pipe piles 11-1, and a transverse support 11-2 is arranged between the adjacent first steel pipe piles 11-1 in a welding mode.
The horizontal assembly component 2 comprises a second steel pipe pile support 21, a second I-shaped beam 22 and a second cushion block 23, wherein the bottom of the second steel pipe pile support 21 is fixed on a river bed 6, the second I-shaped beam 22 is installed on the top end face of the second steel pipe pile support 21 through a second steel plate 24, the second cushion block 23 is installed on the second I-shaped beam 22 in a welding mode, and the second cushion block 23 abuts against the side face of the upper steel tower 5. The second steel pipe pile support 21 comprises four second steel pipe piles 21-1, a rectangular steel pipe pile support is enclosed between the four second steel pipe piles 21-1, a scissor brace 21-2 is installed between the adjacent second steel pipe piles 21-1 in a welding mode, and the scissor brace 21-2 is located on the upper portion of the second steel pipe pile support 21.
The construction method of the bracket comprises the following steps:
1) And (3) construction of the steel pipe pile: firstly, according to a bracket layout coordinate graph, releasing the bracket position, carrying out replacement and filling treatment on the foundation at the land bracket position, and compacting in layers;
(1) land foundation structure construction: and measuring the circumference and the side line of the concrete foundation, pouring concrete for the bracket foundation, and arranging two layers of reinforcing steel meshes in the concrete foundation. After the foundation is poured, the steel pipe piles are installed, crawler cranes are selected for steel pipe pile installation, the site of each steel pipe pile is accurately lofted out on the top surface of the foundation before installation, and the steel pipe pile installation is measured by a total station. The bottom of the steel pipe pile is connected with a concrete foundation by adopting four steel plates and embedded L-shaped steel bars;
(2) and (3) constructing a bracket foundation in water: the underwater bracket is driven by a small-sized floating crane matched with a hydraulic vibration pile hammer. The steel pipe pile is vertically and temporarily inserted into the ground by the floating crane, the pile is clamped by the vibrating hammer by lifting, then the vibrating hammer and the steel pipe pile I are lifted to the pile position, the steel pipe pile I slowly descends after the two total stations meet and measure and position, the low-grade vibration subsides after the measured plane position and the verticality meet the requirements, and the high-grade vibration subsides to the designed elevation position after the steel pipe pile is buried to a certain depth;
2) Cutting and pile extension: and after the hammer is stopped, measuring pile position deviation, skewness and pile top elevation, and cutting or pile splicing and flattening the pile top according to the lofted pile top elevation. And if the pile top is lower than the designed elevation, pile extension is carried out. Firstly, removing hammering damage parts by gas cutting, grinding the hammering damage parts by a grinder, then hoisting a pipe joint to be connected by a crane, connecting the pipe joint to be connected by adopting a backing plate type unidirectional welding process after aligning, symmetrically carrying out aligned positioning spot welding, and cutting and leveling by adopting a common electric welding cutting process if the pile top is higher than a designed elevation;
3) And installing a scissor brace 21-2, a transverse brace 11-2 and an I-shaped beam among piles: and before blanking of the cross braces 11-2 and the cross braces 21-2, pile position rechecking is carried out on the inserted steel pipe piles, the actual size among the piles is measured, and blanking is carried out according to the actual size data. And then lifting the rod piece by using a crane, moving the rod piece to a designated position, and welding the designed positions at the two ends of the horizontal rod piece. And the I-shaped beam is hung by two points, the distribution beam is placed on the top of the steel pipe pile, and the superposition of the center of the beam on the top of the pile and the center of the steel pipe pile is ensured. The elevation of the top surface of the bracket is combined with the elevation of the horizontal spliced bottom of the steel tower, and the beam of the bracket is marked with a steel tower installation in-place control point and an elevation control point.
The present utility model is not limited to the above embodiments, and any modification of the structural design provided by the present utility model, regardless of any changes in shape or material composition, should be considered as being within the scope of the present utility model.
Claims (7)
1. The utility model provides a temporary support is assembled to steel case roof beam cable-stay bridge single column internal tilting steel tower bridge position, includes that vertical assembly subassembly (1) and horizontal assembly subassembly (2), its characterized in that: the top surface of the vertical assembly component (1) is obliquely distributed and props against the side surface of the lower steel tower (3), the vertical assembly component (1) is installed at the splicing parts (8) of the lower steel tower (3), and the vertical assembly component (1) is fixed on the bearing platform (4); the top surface of the horizontal assembly component (2) is propped against the side surface of the upper steel tower (5), the horizontal assembly component (2) is installed at the splicing parts (8) of the upper steel tower (5), and the horizontal assembly component (2) is fixed on a river bed (6); the steel tower (7) at the hinge joint between the upper steel tower (5) and the lower steel tower (3) is respectively abutted against the vertical assembly component (1) and the horizontal assembly component (2), and the vertical assembly component (1) and the horizontal assembly component (2) are fixed on the bearing platform (4).
2. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 1, wherein: the vertical assembly component (1) comprises a first steel pipe pile support (11), a first I-shaped cross beam (12) and a first cushion block (13), wherein the bottom of the first steel pipe pile support (11) is fixed on the bearing platform (4), the first I-shaped cross beam (12) is installed on the top end face of the first steel pipe pile support (11) through a first steel plate (14), the first cushion block (13) is installed on the first I-shaped cross beam (12), and the first cushion block (13) is propped against the side face of the lower steel tower (3).
3. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 2, wherein: the top surface of the first steel pipe pile bracket (11) is distributed in an inclined mode and is consistent with the inclination of the lower steel tower (3).
4. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 2, wherein: the first cushion block (13) is a wedge-shaped cushion block, and the wedge-shaped surface of the first cushion block (13) is matched with and abutted against the side surface of the lower steel tower (3).
5. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 2, wherein: the first steel pipe pile support (11) comprises four first steel pipe piles (11-1), a rectangular steel pipe pile support is formed by surrounding four first steel pipe piles (11-1), and transverse supports (11-2) are arranged between adjacent first steel pipe piles (11-1).
6. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 1, wherein: the horizontal assembly (2) comprises a second steel pipe pile support (21), a second I-shaped cross beam (22) and a second cushion block (23), wherein the bottom of the second steel pipe pile support (21) is fixed on a river bed (6), the second I-shaped cross beam (22) is installed on the top end face of the second steel pipe pile support (21) through a second steel plate (24), the second cushion block (23) is installed on the second I-shaped cross beam (22), and the second cushion block (23) abuts against the side face of the upper steel tower (5).
7. The temporary support for splicing single-column inward-tilting steel tower bridge positions of steel box girder cable-stayed bridge according to claim 6, wherein: the second steel pipe pile support (21) comprises four second steel pipe piles (21-1), a rectangular steel pipe pile support is formed by surrounding the four second steel pipe piles (21-1), a scissor brace (21-2) is installed between every two adjacent second steel pipe piles (21-1), and the scissor brace (21-2) is located on the upper portion of the second steel pipe pile support (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678400.2U CN219653524U (en) | 2023-03-31 | 2023-03-31 | Temporary support is assembled to steel case roof beam cable-stayed bridge single-column internal inclination steel tower bridge position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678400.2U CN219653524U (en) | 2023-03-31 | 2023-03-31 | Temporary support is assembled to steel case roof beam cable-stayed bridge single-column internal inclination steel tower bridge position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653524U true CN219653524U (en) | 2023-09-08 |
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ID=87857002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320678400.2U Active CN219653524U (en) | 2023-03-31 | 2023-03-31 | Temporary support is assembled to steel case roof beam cable-stayed bridge single-column internal inclination steel tower bridge position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653524U (en) |
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2023
- 2023-03-31 CN CN202320678400.2U patent/CN219653524U/en active Active
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