A seismic resistant structure for highway bridge

By introducing vertical and horizontal seismic mechanisms and maintenance and maintenance mechanisms into the seismic structure of highway bridges, the problems of insufficient seismic capacity and inconvenient maintenance of bridges are solved, and more efficient seismic performance and maintenance efficiency are achieved.

CN114673075BActive Publication Date: 2024-12-13WUXI DACHENG CONSTRUCT CO LTD
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Patent Information

Application Number
CN202210478067.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-05
Publication Date
2024-12-13
Estimated Expiration
2042-05-05

AI Technical Summary

Technical Problem

During the use of the existing seismic structure of highway bridges, the vertical and horizontal seismic resistance capabilities are poor, and daily maintenance and maintenance are inconvenient, which affects the use effect.

Method used

A seismic structure for highway bridges including vertical seismic mechanism, horizontal seismic mechanism and maintenance and maintenance mechanism was designed. The vertical seismic mechanism consists of rubber cushioning pads, spring cushioning rods, etc., and the horizontal seismic mechanism consists of mounting frames, limit rings, etc. The maintenance and maintenance mechanism includes anti-slip pedals, climbing frames, etc., to improve the bridge's earthquake resistance and maintenance efficiency.

Benefits of technology

It effectively improves the vertical and horizontal seismic resistance of highway bridges, simplifies the daily maintenance and maintenance process, and improves the efficiency of use and the convenience of structure operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an earthquake-resistant structure for a highway bridge, comprising an earthquake-resistant structure cylinder, the front end outer surface of the earthquake-resistant structure cylinder is provided with a maintenance and repair mechanism, the outer wall of the earthquake-resistant structure cylinder is provided with a horizontal earthquake-resistant mechanism, the upper end outer surface of the earthquake-resistant structure cylinder is provided with a vertical earthquake-resistant mechanism, the vertical earthquake-resistant mechanism comprises a rubber buffer pad, a base, a bearing bottom plate, a spring buffer rod, a bearing top plate, an anti-skid pad, a No. 1 embedded rod and a rubber buffer block, and the horizontal earthquake-resistant mechanism comprises a mounting frame, a fixing bolt, a No. 1 welding part, a No. 2 welding part, a limiting ring, a horizontal earthquake-resistant rod, a No. 2 embedded rod and a wear-resistant buffer pad. The earthquake-resistant structure for a highway bridge described in the present invention is provided with a vertical earthquake-resistant mechanism, a horizontal earthquake-resistant mechanism and a maintenance and repair mechanism, which can improve the vertical earthquake resistance of the bridge, and can also improve the horizontal earthquake resistance of the bridge. Secondly, it can facilitate the daily maintenance and repair of the earthquake-resistant structure, bringing better prospects for use.
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Description

Technical Field

[0001] The invention relates to the technical field of earthquake resistance of highway bridges, and in particular to an earthquake resistance structure for highway bridges. Background Art

[0002] The utility model discloses an earthquake-resistant structure for a highway bridge, which is a structure for improving the earthquake-resistant effect of the highway bridge. Its appearance can facilitate people to use it. It has not only a simple structure but also convenient operation.

[0003] The existing earthquake-resistant structures for highway bridges have certain drawbacks when in use. First, during use, the vertical earthquake resistance is poor, which has certain inconveniences. Secondly, the horizontal earthquake resistance is poor, which has certain adverse effects. In addition, the daily maintenance and inspection of the earthquake-resistant structure is inconvenient, which brings certain adverse effects to people's use process. For this reason, we propose a earthquake-resistant structure for highway bridges. Summary of the invention

[0004] The main purpose of the present invention is to provide an earthquake-resistant structure for a highway bridge, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A seismic-resistant structure for a highway bridge comprises a seismic-resistant structure tube, a front end outer surface of the seismic-resistant structure tube is provided with a maintenance and repair mechanism, an outer wall of the seismic-resistant structure tube is provided with a horizontal seismic-resistant mechanism, an upper end outer surface of the seismic-resistant structure tube is provided with a vertical seismic-resistant mechanism, the vertical seismic-resistant mechanism comprises a rubber buffer pad, a base, a bearing bottom plate, a spring buffer rod, a bearing top plate, an anti-skid pad, a No. 1 embedded rod and a rubber buffer block, the horizontal seismic-resistant mechanism comprises a mounting frame, fixing bolts, a No. 1 welding part, a No. 2 welding part, a limiting ring, a horizontal seismic-resistant rod, a No. 2 embedded rod and a wear-resistant buffer pad, and the maintenance and repair mechanism comprises an anti-skid pedal, a climbing frame, a handrail, a bottom plate and a No. 3 welding part.

[0007] The vertical seismic resistant mechanism is mainly beneficial to improving the vertical seismic resistance of the bridge.

[0008] The horizontal seismic resistant mechanism is mainly beneficial to improving the horizontal seismic resistance of the bridge.

[0009] The maintenance and inspection mechanism is mainly conducive to the daily maintenance and inspection of earthquake-resistant structures.

[0010] Preferably, a rubber buffer pad is provided in the middle of the upper end of the support bottom plate, spring buffer rods are provided on both sides of the upper end of the support bottom plate, a base is provided on the upper outer surface of the rubber buffer pad, a support top plate is provided on the outer wall of the base, a rubber buffer block is provided on the upper outer surface of the base, an anti-slip pad is provided on the upper outer surface of the rubber buffer block, and a No. 1 embedded rod is provided on the upper outer surface of the support top plate.

[0011] Preferably, a mounting frame is provided on the outer surface of one side of the No. 1 welding part, a horizontal seismic rod is provided on the outer wall of the mounting frame, fixing bolts are provided at both the front and rear ends of the horizontal seismic rod, a wear-resistant buffer pad is provided on the outer wall of the horizontal seismic rod, a limiting ring is provided on the outer wall of the wear-resistant buffer pad, a No. 2 welding part is provided on the outer surface of one side of the limiting ring, and a No. 2 embedded rod is provided on the outer surface of the upper end of the horizontal seismic rod.

[0012] Preferably, handrails are provided on both sides of the front end of the base plate, a climbing frame is provided on the outer surface of one side of the handrail, an anti-slip pedal is provided on the outer wall of the climbing frame, and No. 3 welding parts are provided on the outer surfaces of both sides of the base plate.

[0013] Preferably, the middle part of the upper end of the support base plate is fixedly connected to the lower end outer surface of the rubber buffer pad, both sides of the upper end of the support base plate are detachably connected to the outer surface of one end of the spring buffer rod, the upper end outer surface of the rubber buffer pad is detachably connected to the lower end outer surface of the base, the outer wall of the base is detachably connected to the inner wall of the support top plate, the upper end outer surface of the base is detachably connected to the lower end outer surface of the rubber buffer block, the upper end outer surface of the rubber buffer block is fixedly connected to the lower end outer surface of the anti-slip pad, the upper end outer surface of the support top plate is fixedly connected to the lower end outer surface of the No. 1 embedded rod, and the lower end outer surface of the support base plate is fixedly connected to the upper end outer surface of the seismic structure tube.

[0014] Preferably, an outer surface of one side of the No. 1 welding part is fixedly connected to an outer surface of one side of the mounting frame, an outer wall of the mounting frame is detachably connected to an outer surface of one end of a horizontal seismic rod, an outer surface of one end of the fixing bolt passes through an inner wall of the horizontal seismic rod and is detachably connected to an outer surface of a rear end of the mounting frame, an outer wall of the horizontal seismic rod is movably connected to an inner wall of a wear-resistant buffer pad, an outer wall of the wear-resistant buffer pad is fixedly connected to an inner wall of a limiting ring, an outer surface of one side of the limiting ring is fixedly connected to an outer surface of one side of the No. 2 welding part, an outer surface of an upper end of the horizontal seismic rod is fixedly connected to an outer surface of a lower end of the No. 2 embedded rod, and the other outer surfaces of the No. 1 welding part and the No. 2 welding part are both fixedly connected to the outer wall of the seismic-resistant structure tube.

[0015] Preferably, both sides of the front end of the base plate are fixedly connected to the rear end outer surface of the handrail, one side outer surface of the handrail is fixedly connected to the outer surface of one end of the climbing frame, the outer wall of the climbing frame is fixedly connected to the lower end outer surface of the anti-slip pedal, both side outer surfaces of the base plate are fixedly connected to the outer surface of one side of the No. 3 welding piece, and the rear end outer surface of the No. 3 welding piece is fixedly connected to the outer surface of the seismic-resistant structure tube.

[0016] Preferably, the inner wall of the earthquake-resistant structural tube can be directly poured with concrete to be fixed to the bridge pier, and the No. 2 embedded rod and the No. 1 embedded rod are both fixedly connected to the bridge.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the seismic resistance structure for a highway bridge, through the vertical seismic resistance mechanism provided, when the highway bridge encounters vertical vibration, the rubber buffer pad and the rubber buffer block can buffer the vertical vibration suffered by the highway bridge, the spring buffer rod can also assist in buffering the vertical vibration, thereby improving the vertical seismic resistance of the highway bridge, which is beneficial for the bridge to buffer the vertical vibration; through the horizontal seismic resistance mechanism provided, when the highway bridge encounters horizontal vibration, the horizontal seismic resistance rod can buffer the horizontal vibration suffered by the highway bridge, the limiting ring can limit the position of the horizontal seismic resistance rod, prevent the horizontal seismic resistance rod from moving too much and causing the horizontal seismic resistance rod to break, thereby improving the horizontal seismic resistance of the highway bridge, which is beneficial for the bridge to buffer the horizontal vibration; through the maintenance and inspection mechanism provided, when the seismic structure needs maintenance and inspection, the maintenance personnel can climb to the upper end of the seismic resistance structure tube by holding the handrail through the anti-slip pedal and the climbing frame, and perform maintenance and inspection on the seismic structure, thereby improving the maintenance and inspection efficiency, and being beneficial for the daily maintenance and inspection of the seismic resistance structure; the entire seismic resistance structure for a highway bridge is simple in structure, easy to operate, and has a better effect than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of an earthquake-resistant structure for a highway bridge according to the present invention.

[0019] Figure 2 The invention provides an earthquake-resistant structure for a highway bridge Figure 1 An enlarged view of the vertical anti-seismic mechanism 4.

[0020] Figure 3 The invention provides an earthquake-resistant structure for a highway bridge Figure 1 An enlarged view of the vertical anti-seismic mechanism 4.

[0021] Figure 4 The invention provides an earthquake-resistant structure for a highway bridge Figure 1 An enlarged view of the middle horizontal anti-seismic mechanism 3.

[0022] Figure 5 The invention provides an earthquake-resistant structure for a highway bridge Figure 1 An enlarged view of the maintenance and inspection mechanism 1.

[0023] In the figure: 1. Maintenance and inspection mechanism; 2. Earthquake-resistant structural cylinder; 3. Horizontal earthquake-resistant mechanism; 4. Vertical earthquake-resistant mechanism; 41. Rubber buffer pad; 42. Base; 43. Support bottom plate; 44. Spring buffer rod; 45. Support top plate; 46. Anti-skid pad; 47. No. 1 embedded rod; 48. Rubber buffer block; 31. Mounting frame; 32. Fixing bolt; 33. No. 1 welding part; 34. No. 2 welding part; 35. Limiting ring; 36. Horizontal earthquake-resistant rod; 37. No. 2 embedded rod; 38. Wear-resistant buffer pad; 11. Anti-skid pedal; 12. Climbing frame; 13. Handrail; 14. Bottom plate; 15. No. 3 welding part. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-5As shown, a seismic structure for a highway bridge comprises a seismic structure tube 2, a maintenance and repair mechanism 1 is arranged on the front end outer surface of the seismic structure tube 2, a horizontal seismic mechanism 3 is arranged on the outer wall of the seismic structure tube 2, a vertical seismic mechanism 4 is arranged on the upper end outer surface of the seismic structure tube 2, the vertical seismic mechanism 4 comprises a rubber buffer pad 41, a base 42, a bearing bottom plate 43, a spring buffer rod 44, a bearing top plate 45, an anti-skid pad 46, a No. 1 embedded rod 47 and a rubber buffer block 48, the horizontal seismic mechanism 3 comprises a mounting frame 31, a fixing bolt 32, a No. 1 welding part 33, a No. 2 welding part 34, a limiting ring 35, a horizontal seismic rod 36, a No. 2 embedded rod 37 and a wear-resistant buffer pad 38, and the maintenance and repair mechanism 1 comprises an anti-skid pedal 11, a climbing frame 12, a handrail 13, a bottom plate 14 and a No. 3 welding part 15.

[0029] Furthermore, a rubber buffer pad 41 is provided in the middle of the upper end of the support bottom plate 43, spring buffer rods 44 are provided on both sides of the upper end of the support bottom plate 43, a base 42 is provided on the upper end outer surface of the rubber buffer pad 41, a support top plate 45 is provided on the outer wall of the base 42, a rubber buffer block 48 is provided on the upper end outer surface of the base 42, an anti-slip pad 46 is provided on the upper end outer surface of the rubber buffer block 48, and a No. 1 embedded rod 47 is provided on the upper end outer surface of the support top plate 45.

[0030] Furthermore, a mounting frame 31 is provided on the outer surface of one side of the No. 1 welding part 33, a horizontal anti-seismic rod 36 is provided on the outer wall of the mounting frame 31, fixing bolts 32 are provided at both the front and rear ends of the horizontal anti-seismic rod 36, a wear-resistant buffer pad 38 is provided on the outer wall of the horizontal anti-seismic rod 36, a limiting ring 35 is provided on the outer wall of the wear-resistant buffer pad 38, a No. 2 welding part 34 is provided on the outer surface of one side of the limiting ring 35, and a No. 2 embedded rod 37 is provided on the upper outer surface of the horizontal anti-seismic rod 36.

[0031] Furthermore, handrails 13 are provided on both sides of the front end of the base plate 14, a climbing frame 12 is provided on the outer surface of one side of the handrail 13, an anti-slip pedal 11 is provided on the outer wall of the climbing frame 12, and No. 3 welding parts 15 are provided on the outer surfaces of both sides of the base plate 14.

[0032] Furthermore, the middle part of the upper end of the support bottom plate 43 is fixedly connected to the lower end outer surface of the rubber buffer pad 41, both sides of the upper end of the support bottom plate 43 are detachably connected to the outer surface of one end of the spring buffer rod 44, the upper end outer surface of the rubber buffer pad 41 is detachably connected to the lower end outer surface of the base 42, the outer wall of the base 42 is detachably connected to the inner wall of the support top plate 45, the upper end outer surface of the base 42 is detachably connected to the lower end outer surface of the rubber buffer block 48, the upper end outer surface of the rubber buffer block 48 is fixedly connected to the lower end outer surface of the anti-slip pad 46, the upper end outer surface of the support top plate 45 is fixedly connected to the lower end outer surface of the No. 1 embedded rod 47, and the lower end outer surface of the support bottom plate 43 is fixedly connected to the upper end outer surface of the seismic structure tube 2.

[0033] Furthermore, an outer surface of one side of the No. 1 welding part 33 is fixedly connected to an outer surface of one side of the mounting frame 31, an outer wall of the mounting frame 31 is detachably connected to an outer surface of one end of a horizontal seismic-resistant rod 36, an outer surface of one end of a fixing bolt 32 passes through an inner wall of the horizontal seismic-resistant rod 36 and is detachably connected to an outer surface of a rear end of the mounting frame 31, an outer wall of the horizontal seismic-resistant rod 36 is movably connected to an inner wall of a wear-resistant buffer pad 38, an outer wall of the wear-resistant buffer pad 38 is fixedly connected to an inner wall of a limiting ring 35, an outer surface of one side of the limiting ring 35 is fixedly connected to an outer surface of one side of the No. 2 welding part 34, an outer surface of an upper end of the horizontal seismic-resistant rod 36 is fixedly connected to an outer surface of a lower end of the No. 2 embedded rod 37, and the other outer surfaces of the No. 1 welding part 33 and the No. 2 welding part 34 are both fixedly connected to the outer wall of the seismic-resistant structure tube 2.

[0034] Furthermore, both sides of the front end of the base plate 14 are fixedly connected to the rear end outer surface of the handrail 13, one side outer surface of the handrail 13 is fixedly connected to the outer surface of one end of the climbing frame 12, the outer wall of the climbing frame 12 is fixedly connected to the lower end outer surface of the anti-slip pedal 11, both side outer surfaces of the base plate 14 are fixedly connected to the outer surface of one side of the No. 3 welding piece 15, and the rear end outer surface of the No. 3 welding piece 15 is fixedly connected to the outer surface of the seismic-resistant structure tube 2.

[0035] Furthermore, the inner wall of the earthquake-resistant structure tube 2 can be directly poured with concrete to be fixed to the bridge pier, and the No. 2 embedded rod 37 and the No. 1 embedded rod 47 are both fixedly connected to the bridge.

[0036] It should be noted that the present invention is an earthquake-resistant structure for a highway bridge. When in use, the earthquake-resistant structure tube 2 is installed on the highway pier, and then concrete is injected into the earthquake-resistant structure tube 2 to fix the position of the earthquake-resistant structure tube 2. Finally, the horizontal earthquake-resistant mechanism 3 and the vertical earthquake-resistant mechanism 4 are connected to the bridge to complete the installation of the earthquake-resistant structure for the entire highway bridge. The vertical earthquake-resistant mechanism 4 is provided. When the highway bridge encounters vertical vibration, the rubber buffer pad 41 and the rubber buffer block 48 can buffer the vertical vibration suffered by the highway bridge. The spring buffer rod 44 can also assist in buffering the vertical vibration, thereby improving the vertical earthquake resistance of the highway bridge and facilitating the bridge to buffer the vertical vibration. The horizontal seismic mechanism 3 is set up, when the highway bridge encounters horizontal vibration, the horizontal seismic rod 36 can buffer the horizontal vibration of the highway bridge, and the limiting ring 35 can limit the position of the horizontal seismic rod 36 to prevent the horizontal seismic rod 36 from moving too much and causing the horizontal seismic rod 36 to break, thereby improving the horizontal seismic resistance of the highway bridge and facilitating the bridge to buffer the horizontal vibration. The maintenance and inspection mechanism 1 is set up, when the seismic structure needs maintenance and inspection, the maintenance personnel can hold the handrail 13 and climb to the upper end of the seismic structure tube through the anti-slip pedal 11 and the climbing frame 12 to maintain and inspect the seismic structure, thereby improving the maintenance and inspection efficiency, being beneficial to the daily maintenance and inspection of the seismic structure, and being more practical.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An earthquake-resistant structure for a highway bridge, comprising an earthquake-resistant structure tube (2), characterized in that: The front end outer surface of the seismic structure tube (2) is provided with a maintenance and repair mechanism (1), the outer wall of the seismic structure tube (2) is provided with a horizontal seismic mechanism (3), the upper end outer surface of the seismic structure tube (2) is provided with a vertical seismic mechanism (4), the vertical seismic mechanism (4) comprises a rubber buffer pad (41), a base (42), a support bottom plate (43), a spring buffer rod (44), a support top plate (45), an anti-skid pad (46), a No. 1 embedded rod (47) and a rubber buffer block (48), the horizontal seismic mechanism (3) comprises a mounting frame (31), a fixing bolt (32), a No. 1 welding part (33), a No. 2 welding part (34), a limiting ring (35), a horizontal seismic rod (36), a No. 2 embedded rod (37) and a wear-resistant buffer pad (38), and the maintenance and repair mechanism (1) comprises an anti-skid pedal (11), a climbing frame (12), a handrail (13), a bottom plate (14) and a No. 3 welding part (15); A rubber buffer pad (41) is provided at the middle of the upper end of the support bottom plate (43), spring buffer rods (44) are provided on both sides of the upper end of the support bottom plate (43), a base (42) is provided on the upper end outer surface of the rubber buffer pad (41), a support top plate (45) is provided on the outer wall of the base (42), a rubber buffer block (48) is provided on the upper end outer surface of the base (42), an anti-slip pad (46) is provided on the upper end outer surface of the rubber buffer block (48), and a No. 1 embedded rod (47) is provided on the upper end outer surface of the support top plate (45); A mounting frame (31) is provided on one side outer surface of the first welding piece (33), a horizontal anti-seismic rod (36) is provided on the outer wall of the mounting frame (31), fixing bolts (32) are provided at both the front and rear ends of the horizontal anti-seismic rod (36), a wear-resistant buffer pad (38) is provided on the outer wall of the horizontal anti-seismic rod (36), a limiting ring (35) is provided on the outer wall of the wear-resistant buffer pad (38), a second welding piece (34) is provided on one side outer surface of the limiting ring (35), and a second embedded rod (37) is provided on the upper end outer surface of the horizontal anti-seismic rod (36); Handrails (13) are provided on both sides of the front end of the bottom plate (14); a climbing frame (12) is provided on the outer surface of one side of the handrail (13); an anti-slip pedal (11) is provided on the outer wall of the climbing frame (12); and No. 3 welding parts (15) are provided on the outer surfaces of both sides of the bottom plate (14); The middle part of the upper end of the support bottom plate (43) is fixedly connected to the lower end outer surface of the rubber buffer pad (41), both sides of the upper end of the support bottom plate (43) are detachably connected to the outer surface of one end of the spring buffer rod (44), the upper end outer surface of the rubber buffer pad (41) is detachably connected to the lower end outer surface of the base (42), the outer wall of the base (42) is detachably connected to the inner wall of the support top plate (45), the upper end outer surface of the base (42) is detachably connected to the lower end outer surface of the rubber buffer block (48), the upper end outer surface of the rubber buffer block (48) is fixedly connected to the lower end outer surface of the anti-slip pad (46), the upper end outer surface of the support top plate (45) is fixedly connected to the lower end outer surface of the No. 1 embedded rod (47), and the lower end outer surface of the support bottom plate (43) is fixedly connected to the upper end outer surface of the seismic structure tube (2); One side outer surface of the No. 1 welding piece (33) is fixedly connected to one side outer surface of the mounting frame (31); the outer wall of the mounting frame (31) is detachably connected to the outer surface of one end of the horizontal seismic rod (36); the outer surface of one end of the fixing bolt (32) passes through the inner wall of the horizontal seismic rod (36) and is detachably connected to the rear end outer surface of the mounting frame (31); the outer wall of the horizontal seismic rod (36) is movably connected to the inner wall of the wear-resistant buffer pad (38); the outer wall of the wear-resistant buffer pad (38) is fixedly connected to the inner wall of the limiting ring (35); one side outer surface of the limiting ring (35) is fixedly connected to one side outer surface of the No. 2 welding piece (34); the upper end outer surface of the horizontal seismic rod (36) is fixedly connected to the lower end outer surface of the No. 2 embedded rod (37); the other side outer surfaces of the No. 1 welding piece (33) and the No. 2 welding piece (34) are both fixedly connected to the outer wall of the seismic structure tube (2); Both sides of the front end of the base plate (14) are fixedly connected to the outer surface of the rear end of the handrail (13), one side outer surface of the handrail (13) is fixedly connected to the outer surface of one end of the climbing frame (12), the outer wall of the climbing frame (12) is fixedly connected to the outer surface of the lower end of the anti-slip pedal (11), both sides of the outer surface of the base plate (14) are fixedly connected to the outer surface of one side of the third welding piece (15), and the rear end outer surface of the third welding piece (15) is fixedly connected to the outer surface of the seismic structure tube (2); The inner wall of the earthquake-resistant structural tube (2) can be directly poured with concrete to be fixed to the bridge pier, and the No. 2 embedded rod (37) and the No. 1 embedded rod (47) are both fixedly connected to the bridge.