Positioning support for first-section steel anchor beam of cable-stayed bridge

Abstract

The utility model discloses a first-section steel anchor beam positioning support of a cable-stayed bridge. The first-section steel anchor beam positioning support comprises a support bottom supporting structure, a support body system and a steel anchor beam positioning system. The support bottom supporting structure is installed in a poured hollow cable bent tower, the support body system is installed on the support bottom supporting structure, and the steel anchor beam positioning system is arranged in the support body system. The steel anchor beam positioning device is reasonable in structure, high in bearing capacity, high in positioning precision and high in construction efficiency, provides a construction platform for steel anchor beam positioning high-altitude operation, and reduces safety and quality risks.

Description

Technical Field

[0001] The utility model relates to the technical field of cable-stayed bridge construction, and more specifically, to a positioning bracket for the first steel anchor beam of a cable-stayed bridge. Background Art

[0002] Steel anchor beams are components used to anchor the cable-stayed cables on the tower columns of cable-stayed bridges. Accurate positioning directly affects the installation and construction accuracy of the cable-stayed cables and the control of the cable force of the completed bridge, which directly affects the safety, durability, and construction quality of the bridge structure. A cable-stayed bridge tower contains multiple steel anchor beams, which are generally pre-assembled in a factory and hoisted as a whole on site to improve installation accuracy and construction efficiency. The first section of the steel anchor beam is used as the reference section. After positioning and installation, the subsequent steel anchor beams are connected and positioned through temporary matching parts. Therefore, the positioning quality of the first section of the steel anchor beam is crucial, and the positioning accuracy has a decisive influence on the construction of subsequent steel anchor beams. Utility Model Content

[0003] The purpose of the utility model is to provide a positioning bracket for the first section of the steel anchor beam of a cable-stayed bridge. The bracket has a reasonable structure, strong bearing capacity, high positioning accuracy, and fast construction efficiency. At the same time, it provides a construction platform for high-altitude operations for positioning the steel anchor beam, reducing safety and quality risks.

[0004] The technical solution adopted by the utility model to solve this technical problem is: a first section steel anchor beam positioning bracket of a cable-stayed bridge, comprising: a bracket bottom support structure, a bracket frame system and a steel anchor beam positioning system; the bracket bottom support structure is installed in a cast hollow cable tower, the bracket frame system is installed on the bracket bottom support structure, and the steel anchor beam positioning system is arranged in the bracket frame system;

[0005] The steel anchor beam positioning system includes a transverse limit, a longitudinal limit, an elevation adjustment bolt and a thin steel plate; the transverse limit is arranged on one side of the upper part of the support frame system, and is used to limit the transverse position of the steel anchor beam; the longitudinal limit is arranged on the top of the support frame system, and is used to limit the longitudinal position of the steel anchor beam; the elevation adjustment bolt is used for precise adjustment of the elevation of the steel anchor beam, and a number of thin steel plates are filled between the bottom of the steel anchor beam and the support frame system to support the steel anchor beam.

[0006] As a further solution of the utility model, the bottom support structure of the bracket includes embedded parts and supporting corbels, the embedded parts are embedded in the cast hollow cable tower, and the supporting corbels are fixed to the embedded parts.

[0007] As a further solution of the utility model, the support frame system includes a support bottom support main beam, a support column, a support parallel joint and a top distribution beam; the support bottom support main beam is supported on the support bottom support structure of the support, the support column is vertically installed on the support bottom support main beam, adjacent support columns are connected by a support parallel joint, and a top distribution beam is fixed on the top of the support column.

[0008] As a further solution of the utility model: it also includes a personnel operating platform, which includes supporting steel, a steel springboard, a skirting board and a guardrail; the supporting steel is horizontally fixed to one side of the upper part of the bracket column, a steel springboard is laid on the supporting steel, and the steel springboard is provided with a skirting board and a guardrail.

[0009] As a further solution of the utility model, the height of the top surface of the support frame system is slightly lower than the height of the bottom surface of the steel anchor beam.

[0010] The utility model at least has the following beneficial effects:

[0011] (1) The support has a reasonable structure and strong bearing capacity, meeting the load requirements of supporting the first section of the steel anchor beam;

[0012] (2) The support frame structure can be hoisted as a whole after being processed under the bridge, and the installation speed is fast;

[0013] (3) The bracket steel anchor beam positioning system is limited in both longitudinal and transverse directions, and the elevation is adjusted by rotating bolts, with high positioning accuracy;

[0014] (4) The bracket provides a standing platform for operators and is highly safe.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front elevation of the first section of the steel anchor beam positioning bracket;

[0017] Figure 2 This is a schematic diagram of the side elevation of the first section of the steel anchor beam positioning bracket;

[0018] Figure 3 This is a schematic diagram of the relationship between the first section of the steel anchor beam positioning bracket and the steel anchor beam elevation;

[0019] Figure 4 This is a schematic diagram of the arrangement of the elevation adjustment bolts of the first section of the steel anchor beam;

[0020] Figure 5 This is a schematic diagram of the support structure of the first section of steel anchor beam bracket.

[0021] 1. Support structure at the bottom of the bracket, 11. Anchor plate, 12. Anchor reinforcement, 13. Support corbel, 2. Bracket frame system, 21. Support main beam at the bottom of the bracket, 22. Bracket column, 23. Bracket parallel connection, 24. Top distribution beam, 3. Steel anchor beam positioning system, 31. Horizontal limit, 32. Longitudinal limit, 33. Elevation adjustment bolt, 34. Thin steel plate, 4. Personnel operating platform, 41. Support steel, 42. Steel springboard, 43. Skirting board, 44. Guardrail, 5. Steel anchor beam, 51. Steel corbel, 52. Steel siding, 53. Cable duct, 6. Hollow cable tower. DETAILED DESCRIPTION

[0022] The utility model is described in detail and completely below in conjunction with the accompanying drawings. A person of ordinary skill in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly pointed out that the technical solutions and technical features provided in each part of the utility model, including the following description, can be combined with each other without conflict.

[0023] In addition, the embodiments of the present invention involved in the following description are generally only a part of the embodiments of the present invention, rather than all of the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] The following is a further detailed description of the utility model in conjunction with the accompanying drawings and implementations, and its specific implementation process is as follows:

[0025] like Figures 1 to 5 As shown, the utility model provides a positioning bracket for the first steel anchor beam 5 of a cable-stayed bridge, which is used for positioning the first steel anchor beam 5. The steel anchor beam 5 includes a steel corbel 51, a steel wall plate 52 and a cable guide tube 53.

[0026] The first section steel anchor beam 5 positioning bracket of the cable-stayed bridge includes: a bracket bottom support structure 1, a bracket frame system and a steel anchor beam 5 positioning system 3; the bracket bottom support structure 1 is installed in the cast hollow cable tower 6, the bracket frame system is a frame structure, installed on the bracket bottom support structure 1, and the steel anchor beam 5 positioning system 3 is arranged in the bracket frame system;

[0027] The steel anchor beam 5 positioning system 3 includes a transverse limit 31, a longitudinal limit 32, an elevation adjustment bolt 33 and a thin steel plate 34; the transverse limit 31 is arranged on one side of the upper part of the support frame system, and is used to limit the transverse position of the steel anchor beam 5; the longitudinal limit 32 is arranged at the top of the support frame system, and is used to limit the longitudinal position of the steel anchor beam 5; the elevation adjustment bolt 33 is used for precise elevation adjustment of the steel anchor beam 5. In this embodiment, the elevation adjustment bolts 33 are distributed at the four corners below the steel anchor beam 5, and a number of thin steel plates 34 are filled between the bottom of the steel anchor beam 5 and the top distribution beam 24 of the support frame system to support the steel anchor beam 5.

[0028] The technical solution may also include the following technical details to better achieve the technical effect: the support structure 1 at the bottom of the bracket includes embedded parts and support brackets 13, the embedded parts are embedded in the cast hollow cable tower 6, the support brackets 13 are fixed to the embedded parts, and the support brackets 13 are used to support the bottom support main beam 21 of the bracket in the bracket frame system. In this embodiment, the embedded parts include anchor plates 11 and anchor bars 12, the anchor bars 12 are embedded in the hollow cable tower 6, the anchor bars 12 are fixed to the anchor plates 11, and the support brackets 13 are welded and fixed to the anchor plates 11.

[0029] The technical solution may also include the following technical details to better achieve the technical effect: the support frame system includes a support bottom support main beam 21, a support column 22, a support parallel connection 23 and a top distribution beam 24; the support bottom support main beam 21 is supported on the support bottom support structure 1, the support column 22 is vertically installed on the support bottom support main beam 21, adjacent support columns 22 are connected by the support parallel connection 23, and the top distribution beam 24 is fixed on the top of the support column 22. In this embodiment, the transverse limit 31 is fixed to one side of the upper part of the support column 22, the longitudinal limit 32 is fixed to the top distribution beam 24, the elevation adjustment bolt 33 is fixed to the top distribution beam 24 and is located directly below the steel anchor beam 5, the height of the steel anchor beam 5 is adjusted by the elevation adjustment screw, and the number of thin steel plates 34 is determined according to the gap between the steel anchor beam 5 and the top distribution beam 24, so as to ensure that the steel anchor beam 5 is supported by a number of thin steel plates 34.

[0030] The technical solution may also include the following technical details to better achieve the technical effect: it also includes a personnel operating platform 4, which includes a supporting steel 41, a steel springboard 42, a kickboard 43 and a guardrail 44; the supporting steel 41 is horizontally fixed to one side of the upper part of the support column 22, the supporting steel 41 is paved with a steel springboard 42, and the steel springboard 42 is provided with a kickboard 43 and a guardrail 44. The personnel operating platform 4 is convenient for personnel to stand on the personnel operating platform 4 to perform positioning operations.

[0031] The technical solution may also include the following technical details to better achieve the technical effect: the height of the top surface of the support frame system is slightly lower than the height of the bottom surface of the steel anchor beam 5, and the elevation adjustment bolt 33 can be rotated to adjust the elevation, and a thin steel plate 34 is padded at the bottom.

[0032] The bracket of the present application is installed in the cast hollow cable tower 6, with reasonable structure, strong bearing capacity, fast installation speed, high positioning accuracy and high construction efficiency. At the same time, it provides a construction platform for high-altitude positioning of the steel anchor beam 5, reducing safety and quality risks.

[0033] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A positioning bracket for the first steel anchor beam of a cable-stayed bridge, characterized in that: include: The support bottom support structure, the support frame system and the steel anchor beam positioning system; the support bottom support structure is installed in the cast hollow cable tower, the support frame system is installed on the support bottom support structure, and the steel anchor beam positioning system is arranged in the support frame system; The steel anchor beam positioning system includes a transverse limit, a longitudinal limit, an elevation adjustment bolt and a thin steel plate; the transverse limit is arranged on one side of the upper part of the support frame system, and is used to limit the transverse position of the steel anchor beam; the longitudinal limit is arranged on the top of the support frame system, and is used to limit the longitudinal position of the steel anchor beam; the elevation adjustment bolt is used for precise adjustment of the elevation of the steel anchor beam, and a number of thin steel plates are filled between the bottom of the steel anchor beam and the support frame system to support the steel anchor beam.

2. The first steel anchor beam positioning bracket for a cable-stayed bridge according to claim 1, characterized in that: The support structure at the bottom of the bracket includes embedded parts and supporting corbels. The embedded parts are embedded in the cast hollow cable tower, and the supporting corbels are fixed to the embedded parts.

3. The first steel anchor beam positioning bracket for a cable-stayed bridge according to claim 1, characterized in that: The support frame system includes a support bottom support main beam, a support column, a support parallel joint and a top distribution beam; the support bottom support main beam is supported on the support bottom support structure of the support, the support column is vertically installed on the support bottom support main beam, adjacent support columns are connected by a support parallel joint, and a top distribution beam is fixed on the top of the support column.

4. The first steel anchor beam positioning bracket for a cable-stayed bridge as claimed in claim 3, characterized in that: It also includes a personnel operating platform, which includes supporting steel, a steel springboard, a skirting board and a guardrail; the supporting steel is horizontally fixed to one side of the upper part of the bracket column, a steel springboard is laid on the supporting steel, and the steel springboard is provided with a skirting board and a guardrail.

5. The first steel anchor beam positioning bracket for a cable-stayed bridge according to claim 1, characterized in that: The height of the top surface of the support frame system is slightly lower than the height of the bottom surface of the steel anchor beam.

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