CN219653511U - Steel box girder cable-stayed bridge single-column inward-inclined steel tower embedded section fixing support - Google Patents
Steel box girder cable-stayed bridge single-column inward-inclined steel tower embedded section fixing support Download PDFInfo
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- CN219653511U CN219653511U CN202320678368.8U CN202320678368U CN219653511U CN 219653511 U CN219653511 U CN 219653511U CN 202320678368 U CN202320678368 U CN 202320678368U CN 219653511 U CN219653511 U CN 219653511U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 238000004873 anchoring Methods 0.000 claims abstract description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 description 9
- 239000011150 reinforced concrete Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 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
- 238000007789 sealing Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a steel box girder cable-stayed bridge single-column internal-tilting steel tower embedded section fixing bracket which comprises a self-locking type anchorage locating rack and a steel tower embedded section jig frame, wherein a first connecting column is fixed below the self-locking type anchorage locating rack, the lower end of the first connecting column is positioned on the top surface of a bearing platform reinforcing steel mesh and is fixed in a first bearing platform pouring block in a concrete pouring mode, and a plurality of self-locking type anchorage components which are inclined are arranged on the self-locking type anchorage locating rack; the steel tower embedded section jig comprises a second connecting column and connecting steel, wherein the lower end of the second connecting column is fixed on the self-locking anchor positioning frame and is fixed in a second bearing platform pouring block in a concrete pouring mode, and the connecting steel is arranged on the second connecting column and is provided with an embedded anchoring steel plate; the utility model can realize the positioning precision of the embedded anchor steel plate of the steel tower, the self-locking anchor and the vertical prestressed pipeline, and ensure the construction quality.
Description
Technical Field
The utility model belongs to the technical field of bridge construction supports, and particularly relates to a fixing support for an embedded section of a single-column inward-inclined steel tower of a steel box girder cable-stayed bridge.
Background
The main tower of the cable-stayed bridge is used as a main stress member of the cable-stayed bridge and generally consists of a pre-buried anchor steel plate, a reinforced concrete combination section and a reinforced concrete tower section, wherein self-locking prestress is arranged in the reinforced concrete combination section and is connected with the reinforced concrete tower section, and the construction sequence is that the anchor steel plate is pre-buried, the reinforced concrete combination section is installed, and the reinforced concrete combination section and the reinforced concrete tower section are installed. The embedded anchoring steel plate and the reinforced concrete combined section are the erection foundation of the cable-stayed bridge steel tower, and the positioning accuracy determines the success or failure of the installation of the steel tower. At present, because the embedded anchoring steel plate is arranged in a suspended manner, the embedded self-locking type anchorage device in the steel-concrete combined section is difficult to position during the inclined construction of the vertical prestressed pipeline, the precision is easy to deviate and is difficult to correct. In summary, the positioning of the self-locking type anchor vertical prestressed pipeline in the steel-concrete combined section by embedding the anchor steel plate at the bottom of the single-column inward-tilting steel tower of the steel box girder cable-stayed bridge is a problem to be solved urgently at present.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the fixing bracket for the embedded section of the single-column internal tilting steel tower of the cable-stayed bridge of the steel box girder, which can realize the positioning precision of the embedded anchoring steel plate, the self-locking anchorage and the vertical prestressed pipeline of the steel tower and ensure the construction quality.
The utility model aims at solving the problems that the prior art is low in cost, and the self-locking anchor positioning frame is convenient to install and is convenient to install; the steel tower embedded section bed-jig comprises a second connecting column and connecting steel, wherein the lower end of the second connecting column is fixed on the self-locking type anchorage locating rack and fixed in a second bearing platform pouring block in a concrete pouring mode, the second bearing platform pouring block and the first bearing platform pouring block are integrally poured and formed, the upper end of the second connecting column extends out of the top surface of the second bearing platform pouring block, and the connecting steel is installed on the second connecting column and provided with an embedded anchoring steel plate through the connecting steel.
The beneficial effects of the utility model are as follows: compared with the prior art, through setting up self-locking ground tackle locating rack and pre-buried section bed-jig of steel tower and pouring the piece with first cushion cap and pouring the piece with the second cushion cap and combining together for self-locking ground tackle subassembly and pre-buried anchor steel sheet can be fine fix on the fixed bolster, can realize pre-buried anchor steel sheet of steel tower, self-locking ground tackle, vertical prestressing force pipeline positioning accuracy, ensure construction quality.
Preferably, the self-locking anchor positioning frame comprises two first longitudinal beams, two second longitudinal beams and two transverse beams which are distributed in parallel, wherein the two transverse beams are fixed between the two first longitudinal beams, the two second longitudinal beams are fixed between the two transverse beams, and the two first longitudinal beams and the two transverse beams form a rectangular frame body; each longitudinal beam and each transverse beam are provided with self-locking anchor assemblies, and the adjacent self-locking anchor assemblies are arranged in sequence at equal intervals; through the arrangement of the structure, the self-locking type anchor positioning frame is more convenient to mold, so that the construction of a site is facilitated, and the carrying and construction efficiency is more efficient.
Preferably, the first connecting columns are four and are respectively arranged at two ends of the first longitudinal beam, the second connecting columns are four and are respectively arranged at two ends of the first longitudinal beam, and the second connecting columns are positioned at one side of the first connecting columns; through the structure, the stability of the locking type anchorage locating rack and the steel tower embedded section jig frame in the installation process is better.
Preferably, a first positioning bracket is installed between the self-locking anchor positioning frame and the top surface of the first bearing platform pouring block, and the first positioning bracket is fixed on the two first longitudinal beams and the two second longitudinal beams in a crossing manner and is positioned between the two transverse beams; the first longitudinal beam and the second longitudinal beam are better in supporting strength through the first positioning support, so that the stability of the self-locking type anchorage positioning frame in the use process is greatly improved.
Preferably, a second positioning bracket is arranged between the embedded anchor steel plate and the top surface of the second bearing platform pouring block; the embedded anchoring steel plate can be effectively supported through the second positioning support, and stability is better.
Preferably, the self-locking type anchor assembly comprises a self-locking anchor and a steel beam hole channel steel tube, wherein the self-locking anchor is installed on the self-locking type anchor positioning frame through a wedge-shaped steel block, the wedge-shaped steel block is fixed on the self-locking type anchor positioning frame, and the steel beam hole channel steel tube is installed on the self-locking anchor and penetrates through the self-locking type anchor positioning frame; the self-locking type anchor assembly is consistent with the inclination rate of the steel tower through the arrangement of the wedge-shaped steel blocks, so that the positioning precision of the self-locking type anchor assembly is ensured.
Drawings
Fig. 1 is a schematic front view of a fixing bracket according to the present utility model.
Fig. 2 is a schematic top view structure between the self-locking anchor positioning frame and the steel tower pre-embedded section jig frame.
Fig. 3 is a schematic view of the wedge steel of the present utility model mounted on a self-locking anchor bracket.
The reference numerals in the drawings are respectively: 1. a first connection post; 2. bearing platform reinforcing steel bar net sheet; 3. the first bearing platform pouring block; 4. the second bearing platform pouring block; 5. embedding an anchor steel plate; 700. self-locking anchor positioning rack; 701. a first longitudinal beam; 702. a second longitudinal beam; 703. a transverse beam; 704. a first positioning bracket; 800. pre-buried section jig frame of steel tower; 801. a second connection post; 802. connecting steel; 803. a second positioning bracket; 900. a self-locking anchor assembly; 901. self-locking anchorage devices; 902. steel beam hole channel steel pipe; 903. wedge-shaped steel blocks.
Detailed Description
The utility model will be described in detail below with reference to the attached drawings: as shown in fig. 1 to 3, the self-locking type anchor positioning frame 700 and the steel tower embedded section jig frame 800 are included, a first connecting column 1 is fixed below the self-locking type anchor positioning frame 700 in a welding mode, the lower end of the first connecting column 1 is positioned on the top surface of a bearing platform reinforcing steel mesh 2 and is fixed in a first bearing platform pouring block 3 in a concrete pouring mode, the upper end of the first connecting column 1 extends out of the top surface of the first bearing platform pouring block 3, and a plurality of inclined self-locking type anchor assemblies 900 are arranged on the self-locking type anchor positioning frame 700; the steel tower embedded section jig 800 comprises a second connecting column 801 and connecting steel 802, wherein the lower end of the second connecting column 801 is fixed on the self-locking type anchorage locating rack 700 in a welding mode and is fixed in a second bearing platform pouring block 4 in a concrete pouring mode, the second bearing platform pouring block 4 and the first bearing platform pouring block 3 are integrally poured and formed, the upper end of the second connecting column 801 extends out of the top surface of the second bearing platform pouring block 4, the connecting steel 802 is fixed on the second connecting column 801 in a welding mode, and an embedded anchoring steel plate 5 is installed through the connecting steel 802.
The self-locking anchor positioning frame 700 comprises two first longitudinal beams 701, two second longitudinal beams 702 and two transverse beams 703 which are distributed in parallel, wherein the two transverse beams 703 are fixed between the two first longitudinal beams 701 in a welding mode, the two second longitudinal beams 702 are fixed between the two transverse beams 703 in a welding mode, and the two first longitudinal beams 701 and the two transverse beams 703 enclose a rectangular frame body; each longitudinal beam and each transverse beam are provided with self-locking anchor assemblies 900, and adjacent self-locking anchor assemblies 900 are arranged in sequence at equal intervals.
The first connection columns 1 are provided with four and are respectively installed on both ends of the first longitudinal beam 701, the second connection columns 801 are provided with four and are respectively installed on both ends of the first longitudinal beam 701, and the second connection columns 801 are located at one side of the first connection columns 1.
A first positioning bracket 704 is arranged between the self-locking anchor positioning frame 700 and the top surface of the first bearing platform pouring block 3, and the first positioning bracket 704 is fixed on the two first longitudinal beams 701 and the two second longitudinal beams 702 in a crossing manner and is positioned between the two transverse beams 703; a second positioning bracket 803 is arranged between the embedded anchor steel plate 5 and the top surface of the second bearing platform pouring block 4.
The self-locking type anchor assembly 900 comprises a self-locking anchor 901 and a steel beam hole channel steel tube 902, wherein the self-locking anchor 901 is arranged on a self-locking type anchor positioning frame 700 through a wedge-shaped steel block 903, the wedge-shaped steel block 903 is fixed on the self-locking type anchor positioning frame 700, and the steel beam hole channel steel tube 902 is arranged on the self-locking anchor 901 and penetrates through the self-locking type anchor positioning frame 700.
The construction steps of the steel box girder cable-stayed bridge single-column internal inclined steel tower embedded section fixing support are as follows:
1) Chiseling the pile foundation of the bearing platform, sealing the bottom and pouring the cushion layer;
2) Binding the bearing platform reinforcing steel bars to the top surface position of the bearing platform reinforcing steel bar net sheet 2;
3) The self-locking type anchor positioning frame 700 is precisely positioned on the bearing platform reinforcing steel bar net sheet 2, the allowable installation error of each part of the self-locking type anchor positioning frame 700 is within 10mm, the thickness of a welding seam meets the strength of a secondary welding seam, the installation is completed and reinforcement is carried out, the positioning support is prevented from being deviated when concrete pouring is carried out, and after the bearing platform embedded steel bar is installed and the self-locking type anchor positioning frame 700 is installed and reinforced, the first bearing platform pouring block 3 is formed by carrying out the first concrete pouring of the bearing platform;
4) After the first pouring of the bearing platform is finished, a fixed end of the self-locking anchorage 901, a steel beam hole channel steel pipe 902 and a second connecting column 801 are installed on the self-locking anchorage positioning frame 700 and are firmly fixed, the fixed end of the self-locking anchorage 901, the steel beam hole channel steel pipe 902 and the second connecting column 801 are prevented from being deviated during the concrete pouring, and after the installation and reinforcement are finished, the second bearing platform concrete pouring is carried out, namely a second bearing platform pouring block 4;
5) And after the bearing platform is poured for the second time, installing I-shaped connecting steel 802 of the steel tower embedded section jig frame 800, wherein the allowable installation error of each part of the steel tower embedded section jig frame 800 is within 10mm, the thickness of the welding seam meets the strength of the secondary welding seam, and after the installation is finished, positioning and installing the bottom of the embedded section steel tower on the steel tower embedded section jig frame 800.
6) And after positioning and installing the bottom of the pre-buried section steel tower, binding reinforcing steel bars on the top surface of the bearing platform, and finally carrying out the last concrete pouring of the bearing platform.
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 (6)
1. The utility model provides a pre-buried section fixed bolster of steel box girder cable-stay bridge single column internal inclination steel tower, includes self-locking ground tackle locating rack (700) and pre-buried section bed-jig (800) of steel tower, its characterized in that: a first connecting column (1) is fixed below the self-locking type anchor positioning frame (700), the lower end of the first connecting column (1) is positioned on the top surface of the bearing platform reinforcing steel mesh (2) and is fixed in the first bearing platform pouring block (3) in a concrete pouring mode, the upper end of the first connecting column (1) extends out of the top surface of the first bearing platform pouring block (3), and a plurality of inclined self-locking type anchor assemblies (900) are arranged on the self-locking type anchor positioning frame (700); the steel tower embedded section bed-jig (800) comprises a second connecting column (801) and connecting steel (802), wherein the lower end of the second connecting column (801) is fixed on the self-locking anchorage locating rack (700) and is fixed in a second bearing platform pouring block (4) in a concrete pouring mode, the second bearing platform pouring block (4) and the first bearing platform pouring block (3) are integrally poured and formed, the upper end of the second connecting column (801) extends out of the top surface of the second bearing platform pouring block (4), and the connecting steel (802) is installed on the second connecting column (801) and is provided with an embedded anchoring steel plate (5) through the connecting steel (802).
2. The steel box girder cable-stayed bridge single-column internal tilting steel tower embedded section fixing support according to claim 1, wherein: the self-locking type anchor positioning frame (700) comprises two first longitudinal beams (701), two second longitudinal beams (702) and two transverse beams (703) which are distributed in parallel, wherein the two transverse beams (703) are fixed between the two first longitudinal beams (701), the two second longitudinal beams (702) are fixed between the two transverse beams (703), and the two first longitudinal beams (701) and the two transverse beams (703) form a rectangular frame body; each longitudinal beam and each transverse beam are provided with self-locking anchor assemblies (900), and the adjacent self-locking anchor assemblies (900) are arranged in sequence at equal intervals.
3. The steel box girder cable-stayed bridge single-column internal tilting steel tower embedded section fixing support according to claim 2, wherein: the first connecting columns (1) are provided with four connecting columns and are respectively arranged on two ends of the first longitudinal beam (701), the second connecting columns (801) are provided with four connecting columns and are respectively arranged on two ends of the first longitudinal beam (701), and the second connecting columns (801) are positioned on one side of the first connecting columns (1).
4. The steel box girder cable-stayed bridge single-column internal tilting steel tower embedded section fixing support according to claim 2, wherein: a first positioning bracket (704) is arranged between the self-locking anchor positioning frame (700) and the top surface of the first bearing platform pouring block (3), and the first positioning bracket (704) is fixed on the two first longitudinal beams (701) and the two second longitudinal beams (702) in a crossing mode and is positioned between the two transverse beams (703).
5. The steel box girder cable-stayed bridge single-column internal tilting steel tower embedded section fixing support according to claim 1, wherein: a second positioning bracket (803) is arranged between the embedded anchoring steel plate (5) and the top surface of the second bearing platform pouring block (4).
6. The steel box girder cable-stayed bridge single-column internal tilting steel tower embedded section fixing support according to claim 1, wherein: the self-locking type anchor assembly (900) comprises a self-locking anchor (901) and a steel beam hole channel steel tube (902), the self-locking anchor (901) is installed on the self-locking type anchor positioning frame (700) through a wedge-shaped steel block (903), the wedge-shaped steel block (903) is fixed on the self-locking type anchor positioning frame (700), and the steel beam hole channel steel tube (902) is installed on the self-locking anchor (901) and penetrates through the self-locking type anchor positioning frame (700).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678368.8U CN219653511U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column inward-inclined steel tower embedded section fixing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320678368.8U CN219653511U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column inward-inclined steel tower embedded section fixing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653511U true CN219653511U (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320678368.8U Active CN219653511U (en) | 2023-03-31 | 2023-03-31 | Steel box girder cable-stayed bridge single-column inward-inclined steel tower embedded section fixing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653511U (en) |
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- 2023-03-31 CN CN202320678368.8U patent/CN219653511U/en active Active
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