Temporary positioning support for middle cable steel anchor beam of upper tower column of A-shaped bridge tower

Abstract

The utility model discloses a temporary positioning support for a middle cable steel anchor beam of a tower column on an A-shaped bridge tower, which comprises a bearing beam, a steel anchor beam is arranged at the top of the bearing beam, a connecting assembly is arranged at the bottom of the bearing beam, and a positioning assembly for positioning the steel anchor beam is arranged at the top of the bearing beam. The supporting columns are arranged at four corners of the bottom of the bearing beam; the temporary positioning support is horizontally connected and arranged between every two adjacent stand columns, the size of the temporary positioning support can be adjusted through cooperation of the stand columns with the selectable lengths and the detachable lengthening bases, and therefore the height of the steel anchor beam on the top of the bearing beam is changed, the steel anchor beam is lifted through the jacks, the height of the steel anchor beam is precisely adjusted, and the working efficiency is improved. Therefore, the steel anchor beam on the bearing beam can be moved to a designated position, and the tensioning work of the middle cable is facilitated.

Description

Technical Field

[0001] This application relates to the field of bridge construction, and particularly to a temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower. Background Art

[0002] The A-shaped bridge tower is a common cable-stayed bridge structure. The design and construction quality of its upper tower column directly affect the overall stability and service life of the bridge. As the main anchoring and force-bearing structure of the stay cables, the steel anchor beam is usually arranged on the upper tower column to play the role of transmitting the cable force. Before hoisting the steel anchor beam, a steel anchor beam positioning bracket is set at the corresponding position of the tower column.

[0003] However, in the process of implementing the related technical solutions, it is found that there are at least the following technical problems: When installing the middle cable steel anchor beam, it is necessary to install the steel anchor beam on the positioning bracket. The positioning bracket of the steel anchor beam is generally of a fixed size. During installation, the size of the temporary positioning bracket cannot be adjusted according to the required height of the steel anchor beam, which is rather inconvenient to use. Utility Model Content

[0004] This application provides a temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower, which solves the problem of the fixed size of the temporary positioning bracket in the prior art and realizes the effect of adjusting the size of the temporary positioning bracket.

[0005] This application provides a temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower, including a load-bearing beam. A steel anchor beam is arranged on the top of the load-bearing beam, a connection assembly is arranged at the bottom of the load-bearing beam, and a positioning assembly for positioning the steel anchor beam is arranged on the top of the load-bearing beam. The connection assembly includes: four columns, which are arranged at the four corners at the bottom of the load-bearing beam; and horizontal bracings, which are arranged between two adjacent columns.

[0006] Further, fixing blocks are arranged at the corners between the columns and the two horizontal bracings.

[0007] Further, positioning grooves are respectively formed at the four corners at the top of the steel anchor beam. The columns are matched with the positioning grooves in size. The bottom of the four columns is detachably provided with extension seats, and the extension seats are matched with the positioning grooves in size.

[0008] Further, the positioning assembly includes: a steel fulcrum, which is arranged on the top of the load-bearing beam, and the steel anchor beam is arranged on the top of the steel fulcrum; and a jack, which is arranged in the middle of the load-bearing beam, and the steel anchor beam is arranged on the top of the jack.

[0009] Further, a limiting steel plate is arranged on the outer side of the steel anchor beam, and the limiting steel plate is fixedly connected with the steel fulcrum.

[0010] The technical solution provided by this application has at least the following technical effects or advantages:

[0011] Through the cooperation of columns with selectable lengths and detachable extension seats, the size of the temporary positioning bracket can be adjusted, thereby changing the height of the steel anchor beam at the top of the load-bearing beam. The steel anchor beam is lifted by a jack to precisely adjust the height of the steel anchor beam, so that the steel anchor beam on the load-bearing beam can be moved to a designated position, facilitating the tensioning work of the middle cable. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the internal structure of the tower column in the embodiment of this application;

[0013] Figure 2 It is a schematic diagram of the structure of the temporary steel anchor beam installation section in the embodiment of this application;

[0014] Figure 3 It is a schematic diagram of the structure of the connection component in the embodiment of this application;

[0015] In the figure: 10, load-bearing beam; 20, steel anchor beam; 30, positioning groove; 40, connection component; 50, positioning component; 41, column; 42, horizontal bracing; 43, fixed block; 44, extension seat; 51, steel fulcrum; 52, jack; 53, limit steel plate. Detailed Embodiment

[0016] The embodiment of this application discloses a temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower. The overall height of the temporary positioning bracket is adjusted through columns 41 with selectable lengths and detachable extension seats 44, thereby adjusting the position of the steel anchor beam 20 at the top of the load-bearing beam 10. In cooperation with the jack 52 to lift the steel anchor beam 20, the height of the steel anchor beam 20 is precisely adjusted, so that the steel anchor beam 20 can be moved to a designated height, making the installation more convenient.

[0017] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0018] Please refer to Figure 1 、 Figure 2 and Figure 3, this embodiment provides a temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower, which includes a load-bearing beam 10. A steel anchor beam 20 is arranged on the top of the load-bearing beam 10. Positioning grooves 30 are opened at the four corners of the top of the steel anchor beam 20. A connecting component 40 is arranged at the bottom of the load-bearing beam 10. A positioning component 50 for positioning the steel anchor beam 20 is arranged on the top of the load-bearing beam 10. The connecting component 40 includes columns 41, horizontal bracings 42, fixing blocks 43, and extended seats 44. The four columns 41 are arranged at the four corners of the bottom of the load-bearing beam 10 through bolts. The horizontal bracings 42 are arranged between two adjacent columns 41 through bolts. The fixing blocks 43 are arranged at the corners between the columns 41 and the two horizontal bracings 42 through bolts. The extended seats 44 are detachably arranged at the bottom of the columns 41 through bolts, and the columns 41, extended seats 44 and the positioning grooves 30 are matched in size. The columns 41 and extended seats 44 can be fixed in the positioning grooves 30 on the top of the steel anchor beam 20, so that the temporary positioning bracket can be installed on the top of the steel anchor beam 20 to install multiple layers of steel anchor beams 20. The length of the columns 41 can be selected according to actual needs, and the number of horizontal bracings 42 can also be selected according to the length requirements of the columns 41. The columns 41 are fixed more firmly through the horizontal bracings 42 on the columns 41 and the fixing blocks 43 at the corners. By using columns 41 with selectable lengths and detachable extended seats 44, the overall length of the temporary positioning bracket can be changed, thereby changing the position of the steel anchor beam 20 on the top of the load-bearing beam 10, so that the steel anchor beam 20 can be moved to a suitable height for the tensioning work of the middle cable.

[0019] Please refer to Figures 1-3 , the positioning component 50 includes a steel fulcrum 51, a jack 52, and a limit steel plate 53. The steel fulcrum 51 is arranged on the top of the load-bearing beam 10 through bolts, and the steel anchor beam 20 is arranged on the top of the steel fulcrum 51. The jack 52 is arranged in the middle of the load-bearing beam 10, and the steel anchor beam 20 is arranged on the top of the jack 52. The limit steel plate 53 is arranged on the outside of the steel anchor beam 20 and is fixedly connected with the steel fulcrum 51. The steel anchor beam 20 on the top of the load-bearing beam 10 can be lifted through the jack 52 to precisely adjust the height of the steel anchor beam 20, so that the steel anchor beam 20 can be moved to a specified position, facilitating the tensioning work of the middle cable. The steel anchor beam 20 is supported by the steel fulcrum 51, and the limit steel plate 53 outside the steel fulcrum 51 is used to limit the side of the steel anchor beam 20 to prevent the steel anchor beam 20 from moving randomly on the top of the steel fulcrum 51, improving the installation stability of the steel anchor beam 20.

[0020] The functional principle of this application can be elaborated through the following operation methods:

[0021] During use, select four columns 41 of appropriate lengths according to the required position of the top steel anchor beam 20 and install them at the bottom of the steel anchor beam 20. Then select an appropriate number of horizontal braces 42 and install them between two adjacent columns 41. Install the fixing blocks 43 at the corners of the horizontal brace 42 and the two columns 41, so that the four columns 41 can be firmly fixed at the bottom of the load-bearing beam 10. When the position of the top steel anchor beam 20 on the load-bearing beam 10 is not high enough, the extension base 44 can be installed at the bottom of the column 41, so that the temporary positioning bracket can adjust the dimensions according to the required height of the top steel anchor beam 20. Install the temporary positioning bracket on the bridge tower, and then place the steel anchor beam 20 on the steel fulcrum 51 and the jack 52 on the top of the load-bearing beam 10. The limit steel plate 53 on the top of the steel fulcrum 51 is arranged outside the steel anchor beam 20, so that the steel anchor beam 20 will not move randomly on the steel fulcrum 51. The jack 52 can lift the steel anchor beam 20 on the steel fulcrum 51 and precisely adjust the height position of the steel anchor beam 20, so that the steel anchor beam 20 is moved to the designated position for the tensioning work of the middle cable. Then install another temporary positioning bracket with adjusted dimensions on the top of the steel anchor beam 20, so that the column 41 or the extension base 44 is installed in the positioning groove 30 on the top of the steel anchor beam 20, and install multiple steel anchor beams 20 layer by layer.

[0022] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

[0023] The above are only the preferred specific embodiments of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, makes equivalent substitutions or changes, and should be covered by the protection scope of this application.

Claims

1. A temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of an A-shaped bridge tower, comprising a load-bearing beam (10), and a steel anchor beam (20) is arranged on the top of the load-bearing beam (10), characterized in that, A connecting component (40) is provided at the bottom of the load-bearing beam (10), and a positioning component (50) for positioning the steel anchor beam (20) is provided at the top of the load-bearing beam (10). The connecting component (40) includes: Four columns (41), which are arranged at the four corners of the bottom of the load-bearing beam (10); A horizontal bracing (42), which is arranged between two adjacent columns (41).

2. The temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of the A-shaped pylon according to claim 1, characterized in that, Fixing blocks (43) are arranged at the corners between the columns (41) and the two horizontal bracings (42).

3. The temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of the A-shaped pylon as described in claim 1, wherein Positioning grooves (30) are formed at the four corners of the top of the steel anchor beam (20). The columns (41) are matched with the positioning grooves (30) in size. The bottom of the four columns (41) is detachably provided with extension seats (44), and the extension seats (44) are matched with the positioning grooves (30) in size.

4. The temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of the A-shaped pylon according to claim 1, characterized in that, The positioning component (50) includes: Steel fulcrums (51), which are arranged at the top of the load-bearing beam (10), and the steel anchor beam (20) is arranged on the top of the steel fulcrums (51); Jack (52), which is arranged in the middle of the load-bearing beam (10), and the steel anchor beam (20) is arranged on the top of the jack (52).

5. The temporary positioning bracket for the middle cable steel anchor beam of the upper tower column of the A-shaped bridge tower according to claim 4, characterized in that, A limiting steel plate (53) is arranged on the outer side of the steel anchor beam (20), and the limiting steel plate (53) is fixedly connected with the steel fulcrum (51).

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