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

Abstract

The side cable steel anchor beam temporary positioning support of the upper tower column of the A-shaped bridge tower comprises a base on the side of the top of a closure section and a plurality of supporting assemblies, a plurality of upper section tower column concrete faces are arranged on tower limbs on the top of the closure section, and steel anchor beams are arranged on the top of the base and the tops of the supporting assemblies. The multiple supporting assemblies and the multiple steel anchor beams are obliquely arranged layer by layer, and each supporting assembly comprises four second stand columns arranged at the tops of the steel anchor beams; the bottommost supporting leg is arranged at the top of the closure section, and the other supporting legs are arranged at the top of the upper section tower column concrete surface of the corresponding layer; the second bearing beams are arranged at the tops of the four second stand columns and the supporting legs, steel anchor beams are arranged at the tops of the second bearing beams, the heights of the base and the supporting assembly can be changed through the first stand columns, the second stand columns and the supporting legs with the selectable lengths, the height of the steel anchor beam on each layer can be changed according to actual needs, and installation is more convenient.

Description

Technical Field

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

[0002] The A-shaped bridge tower is a special bridge structure form, characterized by the shape of the bridge tower being in the shape of the letter "A". This design is usually used in cable-stayed bridges, where the top of the tower is connected to the bridge deck by multiple stay cables to form a stable support system. The steel anchor beam is an important part of the A-shaped bridge tower, which undertakes the role of transferring the gravity of the main beam to the tower through the stay cables. The steel anchor beam needs to be installed using a temporary positioning bracket during hoisting.

[0003] However, during the implementation of the relevant technical solutions, it is found that there are at least the following technical problems: After the steel anchor beam arrives at the site, it is divided into middle cables, side cables, etc. according to its position on the tower column. When installing the side cable steel anchor beam, due to the inclined setting of the A-shaped bridge tower, the temporary positioning bracket of the steel anchor beam also needs to be installed layer by layer in an inclined manner. The size of the temporary positioning bracket of the steel anchor beam is fixed, making it impossible to change the position of the steel anchor beam as needed during installation, and the installation is rather inconvenient. Utility Model Content

[0004] The present application provides a temporary positioning bracket for side cable steel anchor beams of the upper tower column of an A-shaped bridge tower, which solves the problem in the prior art that the height cannot be changed when installing the side cable steel anchor beam, and achieves the effect of changing the height position of the steel anchor beam by changing the height of the temporary positioning bracket as needed.

[0005] The present application provides a temporary positioning bracket for side cable steel anchor beams of the upper tower column of an A-shaped bridge tower, including a base on the side of the top of the closure section and multiple support components. There are multiple upper segment tower column concrete surfaces arranged on the tower limb at the top of the closure section. Steel anchor beams are arranged on the top of the base and the multiple support components. The multiple support components and the multiple steel anchor beams are arranged layer by layer in an inclined manner. The support component includes: four second columns arranged on the top of the steel anchor beam; legs, the bottommost leg is arranged on the top of the closure section, and the remaining legs are arranged on the top of the corresponding layer of the upper segment tower column concrete surface; a second load-bearing beam arranged on the top of the four second columns and the legs, and a steel anchor beam is arranged on the top of the second load-bearing beam. Positioning grooves are opened at the four corners of the top of the steel anchor beam, and the positioning grooves are matched with the second columns in size.

[0006] Further, a second horizontal bracing is arranged on two of the second columns and the legs in the same plane.

[0007] Further, positioning grooves are opened at the four corners of the top of the steel anchor beam, and the positioning grooves are matched with the second columns in size.

[0008] Further, the base includes: four first columns, arranged on the side of the top of the closure segment; a first horizontal bracing, arranged on two of the first columns in the same plane; a first load-bearing beam, arranged on the top of the four first columns, and one of the steel anchor beams is arranged on the top of the first load-bearing beam.

[0009] Further, limit assemblies for installing the steel anchor beam are arranged on the tops of the first load-bearing beam and multiple second load-bearing beams. The limit assembly includes: four steel fulcrums, arranged on the tops of the first load-bearing beam and the second load-bearing beam, and the steel anchor beam is arranged on the tops of the four steel fulcrums; a limit steel plate, arranged on the tops of the steel fulcrums and on the outside of the steel anchor beam.

[0010] Further, two jacks are symmetrically arranged on the tops of the first load-bearing beam and multiple second load-bearing beams, and the tops of the two jacks are in contact connection with the steel anchor beam.

[0011] The technical solution provided by this application has at least the following technical effects or advantages:

[0012] The first column and the first load-bearing beam are installed on the closure segment to fix the bottommost steel anchor beam. The second column and the horizontally arranged legs enable the remaining steel anchor beams to be inclined. With the first column, the second column, and the legs of optional lengths, the height of the base and the support assembly can be changed, enabling the height of each layer of steel anchor beam to be changed according to actual needs, making the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the upper tower column of the A-shaped bridge tower in an embodiment of this application;

[0014] Figure 2 It is a schematic structural diagram of the base in an embodiment of this application;

[0015] Figure 3 It is a schematic structural diagram of the support assembly in an embodiment of this application;

[0016] Figure 4 It is a schematic structural diagram of the limit assembly in an embodiment of this application;

[0017] In the figure: 10, closure segment; 20, concrete surface of the upper segment tower column; 30, base; 40, support assembly; 50, steel anchor beam; 60, positioning groove; 70, limit assembly; 31, first column; 32, first horizontal bracing; 33, first load-bearing beam; 41, second column; 42, leg; 43, second horizontal bracing; 44, second load-bearing beam; 71, steel fulcrum; 72, jack; 73, limit steel plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] An embodiment of the present application discloses a temporary positioning bracket for the side cable steel anchor beam of the upper tower column of an A-shaped bridge tower. Through the second column 41 and the laterally arranged leg 42, the steel anchor beam 50 can be inclined. Through the first column 31, the second column 41 and the leg 42 with selectable lengths, the lengths of the base 30 and the support assembly 40 can be changed. Cooperating with the jack 72 to lift the steel anchor beam 50 can change the height position of each layer of the steel anchor beam 50, facilitating the installation of the steel anchor beam 50.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 This embodiment provides a temporary positioning bracket for the side cable steel anchor beam of the upper tower column of an A-shaped bridge tower, including a base 30 on the side of the top of the closure section 10 and a plurality of support assemblies 40. A plurality of upper segment tower column concrete surfaces 20 are arranged on the tower limbs at the top of the closure section 10. Steel anchor beams 50 are arranged on the tops of the base 30 and the plurality of support assemblies 40. The plurality of support assemblies 40 and the plurality of steel anchor beams 50 are arranged layer by layer in an inclined manner. The base 30 includes a first column 31, a first horizontal bracing 32, and a first load-bearing beam 33. Four first columns 31 are arranged on the side of the top of the closure section 10. The first horizontal bracing 32 is arranged on two first columns 31 in the same plane through bolts. The first load-bearing beam 33 is arranged on the tops of the four first columns 31 through bolts, and one of the steel anchor beams 50 is arranged on the top of the first load-bearing beam 33. The first horizontal bracing 32 supports between the two first columns 31. A fixing block is arranged between the first horizontal bracing 32 and the first column 31, making the first column 31 more stable. Through the first column 31 with selectable length and the first horizontal bracing 32 with selectable number, the steel anchor beam 50 on the top of the first load-bearing beam 33 can change its height, thus facilitating the installation of the steel anchor beam 50 at a suitable position.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 3, the support assembly 40 includes a second column 41, a leg 42, a second horizontal bracing 43, and a second load-bearing beam 44. The four second columns 41 are arranged on the top of the steel anchor beam 50. Positioning grooves 60 are provided at the four corners of the top of the steel anchor beam 50. The positioning grooves 60 are matched with the second columns 41 in size. The lowermost leg 42 is arranged on the top of the closure segment 10, and the remaining legs 42 are arranged on the top of the concrete surface 20 of the upper segment tower column of the corresponding layer. The second horizontal bracing 43 is arranged on two second columns 41 and legs 42 in the same plane. The second load-bearing beam 44 is arranged on the top of the four second columns 41 and legs 42, and the steel anchor beam 50 is arranged on the top of the second load-bearing beam 44. By installing the second column 41 in the positioning groove 60 on the top of the steel anchor beam 50, the steel anchor beam 50 and the second column 41 are installed layer by layer. Through the leg 42 horizontally arranged on one side of the second column 41, the horizontal position of the second load-bearing beam 44 changes layer by layer, so that the steel anchor beam 50 on the top of the second load-bearing beam 44 can be arranged obliquely layer by layer. The second horizontal bracing 43 supports the second column 41 and the leg 42. The connection blocks arranged between the second horizontal bracing 43 and the second column 41 and the leg 42 can improve the stability of the second column 41 and the leg 42. Through the second column 41 and the leg 42 with optional lengths, and the second horizontal bracing 43 with an optional number, the overall height of the support assembly 40 can be changed according to the actual situation, so that the steel anchor beam 50 on the top of the second load-bearing beam 44 can be installed at a suitable height.

[0022] Please refer to Figures 1-4 , limit assemblies 70 for installing the steel anchor beam 50 are arranged on the tops of the first load-bearing beam 33 and the multiple second load-bearing beams 44. The limit assembly 70 includes steel fulcrums 71, jacks 72, and limit steel plates 73. The four steel fulcrums 71 are arranged on the tops of the first load-bearing beam 33 and the second load-bearing beams 44, and the steel anchor beam 50 is arranged on the tops of the four steel fulcrums 71. The two jacks 72 are symmetrically arranged on the tops of the first load-bearing beam 33 and the multiple second load-bearing beams 44. The tops of the two jacks 72 are in contact connection with the steel anchor beam 50. The limit steel plate 73 is arranged on the top of the steel fulcrum 71 and is arranged outside the steel anchor beam 50. The two jacks 72 symmetrically arranged at the bottom of the steel anchor beam 50 can lift the steel anchor beam 50 on the steel fulcrum 71, so as to precisely change the height of the steel anchor beam 50, so that the steel anchor beam 50 can be accurately moved to the specified height, which is convenient for cable-pulling work. The position of the steel anchor beam 50 is limited by the limit steel plate 73 on the top of the steel fulcrum 71 to prevent the steel anchor beam 50 from moving randomly on the top of the steel fulcrum 71.

[0023] The functional principle of the present application can be elaborated through the following operation modes:

[0024] During use, select the first upright column 31 with a suitable length and a suitable number of the first horizontal bracings 32. Install the first horizontal bracings 32 on the first upright column 31 through bolts. Install the fixing block between the first horizontal bracings 32 and the first upright column 31. Install the first load-bearing beam 33 on the top of the first upright column 31 through bolts. Install the steel fulcrum 71 on the steel fulcrum 71 through bolts. Hoist the base 30 to the top of the side of the closure segment 10. Set the jack 72 on the top of the first load-bearing beam 33. Then install the steel anchor beam 50 inside the limit steel plate 73 on the top of the steel fulcrum 71. The jack 72 on the top of the first load-bearing beam 33 lifts the bottommost steel anchor beam 50 to the specified height. Select the second upright column 41 and the leg 42 with suitable heights according to the actual height required for each layer of the steel anchor beam 50. Then select the number of the second horizontal bracings 43 according to the lengths of the second upright column 41 and the leg 42. Place the second upright column 41 in the positioning groove 60 on the top of the steel anchor beam 50. At this time, fix the leg 42 on the concrete surface 20 of the upper segment tower column of the corresponding layer. Then place the steel anchor beam 50 on the second upright column 41 on the top of the second load-bearing beam 44. The jack 72 lifts the steel anchor beam 50 on the top of the second load-bearing beam 44. Precisely adjust the height of each layer of the steel anchor beam 50 according to the actual needs, so that each layer of the steel anchor beam 50 can be moved to the specified height, facilitating the cable-pulling work.

[0025] Obviously, those skilled in the art can make various modifications and variations 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 modifications and variations.

[0026] The above is only the preferred specific implementation manner of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the technical field, within the technical scope disclosed in this application, according to the technical solution and its concept of this application, makes equivalent replacements or changes, and should all be covered by the protection scope of this application.

Claims

1. An edge cable steel anchor beam temporary positioning bracket for the upper tower column of an A-shaped bridge tower, comprising a base (30) on the side of the top of the closure section (10) and a plurality of support components (40), characterized in that, On the tower limbs at the top of the closure segment (10), there are multiple upper segment tower column concrete surfaces (20). Steel anchor beams (50) are provided at the tops of the base (30) and multiple support assemblies (40). The multiple support assemblies (40) and the multiple steel anchor beams (50) are arranged layer by layer in an inclined manner. The support assembly (40) includes: Four second columns (41), arranged at the top of the steel anchor beam (50); Legs (42), the bottommost leg (42) is arranged at the top of the closure segment (10), and the remaining legs (42) are arranged at the tops of the upper segment tower column concrete surfaces (20) of the corresponding layers; A second load-bearing beam (44), arranged at the tops of the four second columns (41) and the legs (42), and a steel anchor beam (50) is arranged at the top of the second load-bearing beam (44).

2. The temporary positioning bracket for side cable steel anchor beam of upper tower column of A-shaped pylon according to claim 1, characterized in that, Second horizontal bracings (43) are arranged on two second columns (41) and the legs (42) in the same plane.

3. The temporary positioning bracket for side cable steel anchor beam of upper tower column of A-shaped pylon according to claim 1, characterized in that, Positioning grooves (60) are opened at the four corners at the top of the steel anchor beam (50), and the positioning grooves (60) match the dimensions of the second columns (41).

4. The temporary positioning bracket for side cable steel anchor beam of upper tower column of A-shaped pylon according to claim 1, characterized in that, The base (30) includes: Four first columns (31), arranged at the sides at the top of the closure segment (10); A first horizontal bracing (32), arranged on two first columns (31) in the same plane; A first load-bearing beam (33), arranged at the tops of the four first columns (31), and one of the steel anchor beams (50) is arranged at the top of the first load-bearing beam (33).

5. The temporary positioning bracket for side cable steel anchor beam of upper tower column of A-shaped pylon as claimed in claim 4, characterized in that, Limiting assemblies (70) for installing the steel anchor beam (50) are provided at the tops of the first load-bearing beam (33) and multiple second load-bearing beams (44). The limiting assembly (70) includes: Four steel fulcrums (71), arranged at the tops of the first load-bearing beam (33) and the second load-bearing beam (44), and the steel anchor beam (50) is arranged at the tops of the four steel fulcrums (71); Limiting steel plates (73), arranged at the tops of the steel fulcrums (71), and the limiting steel plates (73) are arranged outside the steel anchor beam (50).

6. The temporary positioning bracket for side cable steel anchor beam of upper tower column of A-shaped pylon as claimed in claim 5, wherein, Two jacks (72) are symmetrically arranged at the tops of the first load-bearing beam (33) and multiple second load-bearing beams (44), and the tops of the two jacks (72) are in contact connection with the steel anchor beam (50).

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