A plug-in tie-arch bridge anchorage block connecting structure

Abstract

The utility model relates to the field of anchoring, disclose a kind of plug-in type tie rod arch bridge anchoring block connecting structure, including trapezoidal plate, the outer surface of the trapezoidal plate is equipped with horizontal hole, the outer surface of the horizontal hole is movably connected with large size fine adjustment bolt group, when using the device, it can be through the large size fine adjustment bolt group of the present setting, it is convenient to realize installation error compensation, solve the on-site construction alignment problem, the accurate adjustment of horizontal position is realized by large size fine adjustment bolt group, the fine adjustment of vertical position is completed using small size fine adjustment bolt, the bidirectional aperture design of horizontal hole and vertical hole allows three-dimensional space flexible adjustment, two groups of trapezoidal plate symmetrical layout ensure balanced force, all adjusting components are external for easy maintenance, by the screw hole of setting, it is convenient for the quick installation and fixed of overall structure, the cooperation of each component improves construction efficiency and reduces adjustment error, overall structure is simple and reliable and adjustment flexible.

Description

Technical Field

[0001] This utility model relates to the field of anchoring, specifically a plug-in tie-rod arch bridge anchoring block connection structure. Background Technology

[0002] In the construction of traditional tied arch bridges, the connection structure of anchor blocks is generally constructed by welding or integral casting. As my country's bridge engineering develops towards larger spans and heavier loads, the demand for innovative connection structures of anchor blocks is increasing.

[0003] However, it still has some drawbacks. For example, welded connections are prone to residual stress and fatigue cracks under long-term loads. Secondly, the overall cast-in-place structure lacks adjustment capabilities, making it difficult to correct construction errors and leading to increased prestress loss. Furthermore, the adjustment precision of traditional bolted connection structures is insufficient and cannot meet the millimeter-level installation precision requirements of modern large-span arch bridges.

[0004] To address the aforementioned issues, this application proposes a plug-in tied arch bridge anchor block connection structure. Utility Model Content

[0005] The purpose of this invention is to provide a plug-in tie-rod arch bridge anchor block connection structure to solve the problem of lack of adjustability mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a plug-in tie-rod arch bridge anchor block connection structure, including a trapezoidal plate, the outer surface of which is provided with a horizontal hole, and a large fine-tuning bolt group is movably connected to the outer surface of the horizontal hole, the large fine-tuning bolt group consisting of a second bolt and a first bolt.

[0007] Preferably, a second bolt is movably connected to one side of the trapezoidal plate, and a first bolt is movably connected to the other side of the trapezoidal plate. There are two sets of trapezoidal plates, and a long plate is fixedly connected between the inner and outer surfaces of the trapezoidal plates.

[0008] Preferably, a vertical hole is formed on the upper outer surface of the long plate, and a small fine-tuning bolt is movably connected to the outer surface of the vertical hole.

[0009] Preferably, the large fine-tuning bolt group consists of a head, a screw, and a nut. The bottom end of the screw is provided with an anti-slip layer, and the outer surfaces of the two sets of nuts are respectively movably connected to the outer surfaces of the two sets of trapezoidal plates.

[0010] Preferably, a base plate is fixedly connected to the lower outer surface of the trapezoidal plate, and screw holes are provided on the outer surface of the base plate.

[0011] Preferably, a base plate is fixedly connected to the bottom end of the long plate. The outer surface of the base plate has vertical holes. During the foundation positioning stage, the entire structure is pre-fixed to the bridge foundation through the screw holes in the base plate. The frame formed by the trapezoidal plate and the long plate constitutes the main load-bearing skeleton. The symmetrical layout of the two sets of trapezoidal plates ensures that the load is evenly transferred to the base plate. For the lateral adjustment mechanism, a set of large micro-adjustment bolts passes through the horizontal holes. Its double-bolt structure involves the first and second bolts being screwed into the trapezoidal plates on both sides. Millimeter-level lateral displacement control is achieved through the symmetrical locking of two sets of nuts, while also preventing slippage. The layer effectively suppresses vibration displacement. The vertical fine-tuning process involves using the vertical holes on the long plate and small fine-tuning bolts to achieve vertical fine-tuning through the single-bolt lifting principle. During operation, the large bolt group is loosened first, and then all bolts are tightened simultaneously after the vertical positioning is completed, forming a three-dimensional stable structure. Under the action of construction load, the insertion node of the trapezoidal plate and the long plate forms friction damping through the bolt pre-tightening force, while the rigid connection between the bottom plate and the bridge foundation further suppresses structural flutter, achieving a horizontally adjustable, vertically controllable, and overall rigid anchoring effect.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a set of large fine-tuning bolts to facilitate installation error compensation and solve the problem of on-site construction alignment. The large fine-tuning bolts enable precise adjustment of the lateral position, while the small fine-tuning bolts enable fine adjustment of the vertical position. The bidirectional opening design of the horizontal and vertical holes allows for flexible adjustment in three-dimensional space. The symmetrical layout of the two sets of trapezoidal plates ensures balanced force distribution. All adjustment components are externally mounted for easy inspection and maintenance.

[0013] This utility model, through the screw holes, facilitates the quick installation and fixation of the overall structure. The synergistic effect of each component improves construction efficiency and reduces adjustment errors. The overall structure is simple, reliable, and flexible in adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the plug-in tie rod arch bridge anchor block connection structure of this utility model; Figure 2 This is a side view of the connection structure of the plug-in tie rod arch bridge anchor block of this utility model; Figure 3 This is a schematic diagram of the large fine-tuning bolt group structure of the plug-in tied arch bridge anchor block connection structure of this utility model; Figure 4 This is a schematic diagram of the base plate structure of the plug-in tie-rod arch bridge anchor block connection structure of this utility model.

[0015] In the diagram: 1. Trapezoidal plate; 2. Long plate; 3. Large fine-tuning bolt group; 4. Small fine-tuning bolt; 5. Vertical hole; 6. Horizontal hole; 7. Second bolt; 8. Screw hole; 9. Head; 10. Screw; 11. Anti-slip layer; 12. Nut; 13. Base plate; 14. First bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figures 1-4 A plug-in tied arch bridge anchor block connection structure includes a trapezoidal plate 1. Two sets of trapezoidal plates 1 are symmetrically arranged to ensure balanced force. All adjustment components are externally mounted for easy inspection and maintenance. A transverse hole 6 is opened on the outer surface of the trapezoidal plate 1. A large fine-adjustment bolt group 3 is movably connected to the outer surface of the transverse hole 6. The large fine-adjustment bolt group 3 facilitates installation error compensation and precise adjustment of the lateral position, solving the problem of on-site construction alignment. The large fine-adjustment bolt group 3 consists of a second bolt 7 and a first bolt 14.

[0018] In this embodiment, as shown... Figures 1-2 As shown, the large fine-tuning bolt group 3 consists of a head 9, a screw 10 and a nut 12. The bottom end of the screw 10 is provided with an anti-slip layer 11. The outer surfaces of the two sets of nuts 12 are movably connected to the outer surfaces of the two sets of trapezoidal plates 1. A second bolt 7 is movably connected to one side of the trapezoidal plate 1, and a first bolt 14 is movably connected to the other side of the trapezoidal plate 1. There are two sets of trapezoidal plates 1.

[0019] In this embodiment, as shown... Figures 3-4 As shown, a long plate 2 is fixedly connected between the inner and outer surfaces of the trapezoidal plate 1. A vertical hole 5 is opened on the upper outer surface of the long plate 2. A base plate 13 is fixedly connected to the bottom of the long plate 2. A vertical hole 5 is opened on the outer surface of the base plate 13. A small fine-tuning bolt 4 is movably connected to the outer surface of the vertical hole 5. The small fine-tuning bolt 4 is used to make fine adjustments to the vertical position. The bidirectional opening design of the horizontal hole 6 and the vertical hole 5 allows for flexible adjustment in three-dimensional space. The base plate 13 is fixedly connected to the lower outer surface of the trapezoidal plate 1. A screw hole 8 is opened on the outer surface of the base plate 13. The screw hole 8 facilitates the quick installation and fixation of the overall structure. The synergistic effect of each component improves construction efficiency and reduces adjustment errors. The overall structure is simple, reliable and flexible in adjustment.

[0020] Working principle A plug-in tied arch bridge anchor block connection structure, in the foundation positioning stage: the entire structure is pre-fixed to the bridge foundation through the screw holes 8 of the base plate 13. The frame formed by the trapezoidal plate 1 and the long plate 2 constitutes the main load-bearing skeleton. The symmetrical layout of the two sets of trapezoidal plates ensures that the load is evenly transferred to the base plate. The lateral adjustment mechanism uses a large fine-tuning bolt group 3 that passes through the transverse hole 6. Its double bolt structure: the first bolt 14 and the second bolt 7 are screwed into the trapezoidal plates on both sides respectively. The symmetrical locking of the two sets of nuts 12 achieves millimeter-level lateral displacement control. At the same time, the anti-slip layer... 11. Effectively suppress vibration displacement and vertical fine-tuning process: The vertical holes 5 on the long plate 2 are matched with the small fine-tuning bolts 4. Vertical fine-tuning is achieved through the single bolt lifting principle. During operation, the large bolt group is loosened first. After the vertical positioning is completed, all bolts are tightened simultaneously to form a three-dimensional stable structure. Under the action of construction load, the insertion node of the trapezoidal plate and the long plate forms friction damping through the bolt pre-tightening force. The rigid connection between the bottom plate 13 and the bridge base further suppresses structural flutter, achieving a horizontally adjustable, vertically controllable, and overall rigid anchoring effect.

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A plug-in tied arch bridge anchor block connection structure, comprising a trapezoidal plate (1), characterized in that: The outer surface of the trapezoidal plate (1) is provided with a horizontal hole (6), and a large fine adjustment bolt group (3) is movably connected to the outer surface of the horizontal hole (6). The large fine adjustment bolt group (3) is composed of a second bolt (7) and a first bolt (14).

2. The plug-in tied arch bridge anchor block connection structure according to claim 1, characterized in that: The trapezoidal plate (1) is movably connected to one side with a second bolt (7) and the trapezoidal plate (1) is movably connected to the other side with a first bolt (14). There are two sets of trapezoidal plates (1), and a long plate (2) is fixedly connected between the inner and outer surfaces of the trapezoidal plate (1).

3. The plug-in tied arch bridge anchor block connection structure according to claim 2, characterized in that: The upper outer surface of the long plate (2) is provided with a vertical hole (5), and a small fine adjustment bolt (4) is movably connected to the outer surface of the vertical hole (5).

4. The plug-in tied arch bridge anchor block connection structure according to claim 3, characterized in that: The large fine-tuning bolt group (3) consists of a head (9), a screw (10) and a nut (12). The bottom end of the screw (10) is provided with an anti-slip layer (11). The outer surfaces of the two sets of nuts (12) are respectively movably connected to the outer surfaces of the two sets of trapezoidal plates (1).

5. The plug-in tied arch bridge anchor block connection structure according to claim 4, characterized in that: The lower outer surface of the trapezoidal plate (1) is fixedly connected to a base plate (13), and the outer surface of the base plate (13) is provided with screw holes (8).

6. The plug-in tied arch bridge anchor block connection structure according to claim 5, characterized in that: The bottom end of the long plate (2) is fixedly connected to a base plate (13), and the outer surface of the base plate (13) is provided with vertical holes (5).

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