Arch rib cable-stayed buckle cable steel anchor beam structure

Abstract

The utility model discloses an arch rib cable-stayed buckle cable steel anchor beam structure which comprises a plurality of steel anchor beams fixed on a concrete cover beam, and the steel anchor beams are arranged side by side in an attached mode and connected in sequence. A back cable anchoring assembly and a buckle cable anchoring assembly are fixed to the tops of the two ends of each steel anchor beam respectively. The back cable anchoring assembly comprises a back cable anchoring plate provided with a back cable anchoring hole. The buckle cable anchoring assembly comprises a buckle cable anchoring plate provided with a buckle cable anchoring hole. The buckle cable anchor plates are sequentially arranged in parallel in the width direction of the steel anchor beam, and the positions of the buckle cable anchoring holes in the different buckle cable anchor plates are different. The back cable anchor plates are horizontally and obliquely arranged in the width direction of the steel anchor beam, and all the back cable anchor plates are the same in slope and connected in sequence. The number of the back cables and the buckle cables which can be anchored can be increased, and the construction efficiency can be effectively improved by anchoring multiple groups of back cables and buckle cables at the same time; according to the utility model, multiple groups of back cables or buckle cables can be prevented from colliding in the anchoring direction, and the anchoring and fixing effects of the back cables and the buckle cables can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering construction, in particular to an arch rib oblique stay cable steel anchor beam structure. Background Art

[0002] Arch ribs are commonly used structures in large-span bridge projects. Before the main arch segments of the steel tube arch are closed after hoisting, they need to be fixed with cable wire bundles to ensure linearity and safety of construction. However, due to the limitation of the cable angle or the fixing conditions of the back cables, the arch rib segments must be fixed with the help of pier cap beams. When the cables and back cables cross the concrete cap beam, they need to be anchored with the help of steel anchor beams. The cables and back cables are anchored to the steel anchor beams, and the back cables are then anchored and tightened to the steel anchor beams. The front end of the cables is connected to the arch rib segments through connectors, and the end of the back cables is connected and fixed to the embedded fixing points through connectors. At the same time, the steel anchor beams are fixed to the cap beams through embedded parts to improve the anchoring safety. For example, a Chinese invention patent application with publication number CN115351447A discloses a method for welding and forming a steel anchor box of a cable tower. The steel anchor box in its technical solution consists of a top plate, a web plate, a bottom plate, an anchor pad and a cable guide tube. The steel anchor box in this invention application can only connect and anchor a group of buckle cables and back cables, and the anchoring angle of the back cables is fixed and cannot be adjusted, and has low adaptability. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an arch rib oblique-stayed cable steel anchor beam structure which can simultaneously anchor multiple groups of cable ties and back cables to improve construction.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an arch rib inclined cable steel anchor beam structure, comprising a plurality of steel anchor beams fixed on a concrete cap beam, the steel anchor beams being arranged side by side and connected in sequence; a back cable anchoring assembly and a cable anchoring assembly are respectively fixed to the top of both ends of each steel anchor beam: the back cable anchoring assembly comprises a back cable anchor plate provided with a back cable anchoring hole, the cable anchoring assembly comprises a cable anchor plate provided with a cable anchoring hole; the cable anchor plates are arranged in parallel in sequence in the width direction of the steel anchor beam, and the cable anchoring holes on different cable anchor plates are arranged at different positions; the back cable anchor plates are arranged horizontally and inclined in the width direction of the steel anchor beam, and all back cable anchor plates have the same slope and are connected in sequence.

[0005] As an improvement of the above-mentioned scheme: the back cable anchoring assembly also includes a back cable anchoring support plate and a back cable anchoring stiffening plate; the two back cable anchoring support plates are spaced apart in the width direction of the steel anchor beam and vertically fixed on the steel anchor beam, and the back cable anchor plate is fixed to the end portions of the two back cable anchoring support plates close to one end of the steel anchor beam; a plurality of back cable anchoring stiffening plates are vertically connected between the back cable anchoring support plate and the back cable anchor plate to support the back cable anchor plate.

[0006] As an improvement of the above-mentioned scheme: the cable anchoring assembly also includes a cable anchoring support plate and a cable anchoring stiffening plate; the two cable anchoring support plates are spaced apart in the width direction of the steel anchor beam and vertically fixed on the steel anchor beam, and the cable anchor plate is fixed to the end portions of the two cable anchoring support plates close to one end of the steel anchor beam; a plurality of cable anchoring stiffening plates are vertically connected between the cable anchoring support plate and the cable anchor plate to support the cable anchor plate.

[0007] As an improvement of the above solution: the deflection angle of the back cable anchor plate in the horizontal direction is ≤10°.

[0008] As an improvement of the above solution: it also includes a clearance groove arranged on the steel anchor beam, wherein the clearance groove is arranged at the upper flange of the steel anchor beam, and the clearance groove is aligned with the buckle cable anchor hole on the corresponding steel anchor beam.

[0009] The beneficial effects of the utility model are as follows: the utility model anchors the back cables and the buckle cables respectively by arranging a back cable anchoring assembly and a buckle cable anchoring assembly on the steel anchor beam, and adopts a plurality of steel anchor beams arranged side by side, which can increase the number of back cables and buckle cables that can be anchored, and anchoring multiple groups of back cables and buckle cables at the same time can effectively improve the construction efficiency and enhance the anchoring bearing capacity of the steel anchor beam; and, in the utility model, the back cable anchor plate is inclined in the horizontal direction, and the angle of the anchored back cable can be adjusted by adjusting the arrangement sequence of the steel anchor beams, and the anchoring point of the buckle cable can also be adjusted, thereby preventing multiple groups of back cables or buckle cables from colliding in the anchoring direction, which is beneficial to improving the anchoring and fixing effect of the back cables and buckle cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the utility model;

[0011] Figure 2 It is a top view of the utility model.

[0012] Markings in the figure are: 100-concrete cap beam, 200-steel anchor beam, 210-gap groove, 310-back cable anchor plate, 320-back cable anchor hole, 330-back cable anchor support plate, 340-back cable anchor stiffening plate, 410-cable anchor plate, 420-cable anchor hole, 430-cable anchor support plate, 440-cable anchor stiffening plate, 500-back cable, 600-cable. DETAILED DESCRIPTION

[0013] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0014] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0015] like Figure 1 and Figure 2 As shown, the arch rib inclined cable steel anchor beam structure disclosed in the utility model includes a concrete cap beam 100, a steel anchor beam 200, a back cable anchor assembly and a cable anchor assembly. The concrete cap beam 100 serves as a supporting and fixing foundation for the steel anchor beam 200, and the steel anchor beam 200 is fixed to the concrete cap beam 100 through embedded parts. The steel anchor beam 200 serves as an installation load-bearing foundation for the back cable anchor assembly and the cable anchor assembly, and the back cable anchor assembly and the cable anchor assembly are respectively fixed to the top of both ends of the steel anchor beam 200. The back cable anchor assembly is used to anchor the back cable 500, and the cable anchor assembly is used to anchor the cable 600. In the utility model, the number of steel anchor beams 200 used is increased, and multiple steel anchor beams 200 are arranged side by side and fixed into a whole by welding. The specific number and arrangement method of the arrangement can be selected according to actual production needs.

[0016] Specifically, Figure 1 and Figure 2As shown, the back cable anchoring assembly used in the present invention is provided with a back cable anchor plate 310, which is fixed on the steel anchor beam 200 and is inclined at a certain angle in a direction perpendicular to the steel anchor beam 200, and a back cable anchoring hole 320 is provided on the back cable anchor plate 310, and the back cable 500 passes through the back cable anchoring hole 320 for anchoring. The back cable anchor plate 310 corresponds to the steel anchor beam 200, that is, one back cable anchor plate 310 is fixed on each steel anchor beam 200, and one back cable anchoring hole 320 is provided on each back cable anchor plate 310. Since a plurality of steel anchor beams 200 are used in the present invention, the number of back cable anchor plates 310 and back cable anchor holes 320 is also increased accordingly. The number of steel anchor beams 200 used can be selected according to the number of back cables 500 that need to be anchored, and the steel anchor beams 200 can be arranged side by side and then connected and fixed in sequence by welding. The present invention can anchor a plurality of groups of back cables 500 at one time, thereby effectively improving the construction efficiency and shortening the construction period. In order to adjust the anchoring angle of the back rope 500, the utility model sets the back rope anchor plate 310 to be horizontally inclined in the width direction of the steel anchor beam 200, and all the back rope anchor plates 310 have the same slope and are connected in sequence. The position of the corresponding back rope anchor plate 310 on the steel anchor beam 200 can be adjusted by changing the arrangement order of the steel anchor beam 200, so that the anchoring angle of the back rope 500 can be adjusted; and the back rope 500 can be combed to avoid crowding and collision of different back ropes 500 when multiple groups of back ropes 500 are anchored at the same time, which is beneficial to improving the anchoring effect of the back rope 500.

[0017] Specifically, Figure 1 and Figure 2 As shown, the back cable anchoring assembly used in the present invention includes a back cable anchoring support plate 330 and a back cable anchoring stiffening plate 340 in addition to the back cable anchor plate 310; two back cable anchoring support plates 330 are used in each group of back cable anchoring assemblies, and the two back cable anchoring support plates 330 are spaced apart in the width direction of the steel anchor beam 200 and vertically fixed on the steel anchor beam 200, and the back cable anchor plate 310 is fixed to the end portions of the two back cable anchoring support plates 330 close to one end of the steel anchor beam 200; a plurality of back cable anchoring stiffening plates 340 are vertically connected between the back cable anchoring support plates 330 and the back cable anchor plates 310, and the back cable anchor plates 310 are supported and reinforced by the back cable anchoring stiffening plates 340, thereby effectively improving the fixing effect and stability of the back cable anchor plates 310.

[0018] Furthermore, in order to prevent the back cable 500 from affecting the fixing effect of the steel anchor beam 200 due to excessive horizontal force after anchoring, the utility model sets the deflection angle of the back cable anchor plate 310 in the horizontal direction to be ≤10°.

[0019] Specifically, Figure 1 and Figure 2As shown, the cable anchor assembly used in the present invention is provided with a cable anchor plate 410, which is fixed on the steel anchor beam 200 and is tilted at a certain angle in a direction perpendicular to the steel anchor beam 200, and a cable anchor hole 420 is provided on the cable anchor plate 410, through which the cable 600 passes for anchoring. The cable anchor plate 410 corresponds to the steel anchor beam 200, that is, one cable anchor plate 410 is fixed on each steel anchor beam 200, and one cable anchor hole 420 is provided on each cable anchor plate 410. Since multiple steel anchor beams 200 are used in the present invention, the number of cable anchor plates 410 and cable anchor holes 420 is also increased accordingly. The number of steel anchor beams 200 used can be selected according to the number of cable anchors 600 to be anchored, and the steel anchor beams 200 are arranged side by side and then connected and fixed in sequence by welding. The present invention can anchor multiple groups of cable anchors 600 at one time, thereby effectively improving the construction efficiency and shortening the construction period. Further, in the present invention, the cable anchor plates 410 are arranged in parallel in the width direction of the steel anchor beams 200, and the cable anchor holes 420 on different cable anchor plates 410 are arranged at different positions. The anchoring position of the cable anchor 600 can be adjusted by changing the arrangement order of the steel anchor beams 200.

[0020] Specifically, Figure 1 and Figure 2 As described, the cable anchoring assembly used in the present invention includes, in addition to the cable anchor plate 410, a cable anchoring support plate 430 and a cable anchoring stiffening plate 440; two cable anchoring support plates 430 are used in each group of cable anchoring assemblies, and the two cable anchoring support plates 430 are spaced apart in the width direction of the steel anchor beam 200 and vertically fixed on the steel anchor beam 200, and the cable anchor plate 410 is fixed to the ends of the two cable anchoring support plates 430 close to one end of the steel anchor beam 200; a plurality of cable anchoring stiffening plates 440 are vertically connected between the cable anchoring support plate 430 and the cable anchor plate 410, and the cable anchor plate 410 is supported and reinforced by the cable anchoring stiffening plate 440, thereby effectively improving the fixing effect and stability of the cable anchor plate 410.

[0021] Since the buckle cable 600 may collide with the upper flange of the steel anchor beam 200 after being anchored, causing wear of the buckle cable 600, in order to reduce the friction between the buckle cable 600 and the steel anchor beam 200, as shown in FIG. Figure 2As shown, the utility model provides a clearance groove 210 on the steel anchor beam 200, and the clearance groove 210 is provided at the upper flange of the steel anchor beam 200 near one end of the buckle cable anchoring assembly, and the clearance groove 210 and the buckle cable anchoring hole 420 are in a one-to-one correspondence, and the clearance groove 210 is aligned with the buckle cable anchoring hole 420 on the corresponding steel anchor beam 200. The specific structure of the clearance groove 210 is not limited, as long as the end angle of the corresponding part of the upper flange of the steel anchor beam 200 can be eliminated, for example, the clearance groove 210 can be an elliptical slot or a circular slot.

Claims

1. Arch rib inclined cable steel anchor beam structure, characterized by: The invention comprises a plurality of steel anchor beams (200) fixed on a concrete cap beam (100), wherein the steel anchor beams (200) are arranged side by side and connected in sequence; a back cable anchoring assembly and a buckle cable anchoring assembly are respectively fixed to the top of both ends of each steel anchor beam (200); the back cable anchoring assembly comprises a back cable anchor plate (310) provided with a back cable anchoring hole (320), and the buckle cable anchoring assembly comprises a buckle cable anchor plate (410) provided with a buckle cable anchoring hole (420); the buckle cable anchor plates (410) are arranged in parallel in sequence in the width direction of the steel anchor beam (200), and the buckle cable anchoring holes (420) on different buckle cable anchor plates (410) are arranged at different positions; the back cable anchor plates (310) are arranged horizontally and tilted in the width direction of the steel anchor beam (200), and all the back cable anchor plates (310) have the same slope and are connected in sequence.

2. The arch rib inclined cable steel anchor beam structure according to claim 1, characterized in that: The back cable anchoring assembly further comprises a back cable anchoring support plate (330) and a back cable anchoring stiffening plate (340); the two back cable anchoring support plates (330) are spaced apart in the width direction of the steel anchor beam (200) and are vertically fixed on the steel anchor beam (200); the back cable anchor plate (310) is fixed to the ends of the two back cable anchoring support plates (330) close to one end of the steel anchor beam (200); a plurality of back cable anchoring stiffening plates (340) are vertically connected between the back cable anchoring support plates (330) and the back cable anchor plates (310) to support the back cable anchor plates (310).

3. The arch rib inclined cable steel anchor beam structure according to claim 1, characterized in that: The cable anchoring assembly further comprises a cable anchoring support plate (430) and a cable anchoring stiffening plate (440); the two cable anchoring support plates (430) are spaced apart in the width direction of the steel anchor beam (200) and are vertically fixed on the steel anchor beam (200); the cable anchor plate (410) is fixed to the ends of the two cable anchoring support plates (430) close to one end of the steel anchor beam (200); and a plurality of cable anchoring stiffening plates (440) are vertically connected between the cable anchoring support plate (430) and the cable anchor plate (410) to support the cable anchor plate (410).

4. The arch rib inclined cable steel anchor beam structure according to claim 1, characterized in that: The deflection angle of the back cable anchor plate (310) in the horizontal direction is ≤10°.

5. The arch rib inclined cable steel anchor beam structure according to claim 1, characterized in that: The invention also comprises a clearance groove (210) arranged on the steel anchor beam (200), wherein the clearance groove (210) is arranged at the upper flange of the steel anchor beam (200) close to one end of the buckle cable anchoring assembly, and the clearance groove (210) is aligned with the buckle cable anchoring hole (420) on the corresponding steel anchor beam (200).

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