Anti-seismic bridge steel structure

Abstract

The utility model relates to the technical field of steel structures, and discloses an anti-seismic bridge steel structure which comprises a base, a plurality of supporting columns are arranged at the bottom of the base, the supporting columns penetrate into a soil layer to be placed underground, the tops of the supporting columns are fixedly connected with the bottom of the base, and a damping steel column is arranged at the top of the base. The bottom of the damping steel column is fixedly connected with the top of the base, the bridge floor is arranged on the top of the damping steel column, the buffering device is arranged in the bridge floor, the damping device is arranged between the damping steel column and the bridge floor, the supporting columns are deeply buried underground, the whole bridge is stably supported, seismic transverse waves are buffered through the buffering device, and the damping effect is good. And then the damping device is used for damping.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, in particular to an earthquake-resistant bridge steel structure. Background Art

[0002] With the rapid development of economic construction, the construction of bridges has been driven. During the construction of bridges, it was found that earthquakes caused serious damage to bridges. Earthquakes, as inevitable natural disasters, will cause loss of life and property. Steel structure is a structure mainly composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. According to the patent document with publication number CN206109967U in the prior art, an earthquake-resistant bridge steel structure is provided. By arranging a shock-absorbing spring structure at the base and the middle part of the structural beam body, the influence of vibration on the steel structure can be well reduced. When an earthquake occurs, the bridge deck may also be affected by the seismic transverse waves. For this reason, we propose an earthquake-resistant bridge steel structure. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a seismic-resistant bridge steel structure to solve the above-mentioned problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an earthquake-resistant bridge steel structure, including a base, a plurality of support columns are fixedly installed at the bottom of the base, the support columns are placed underground deep in the soil layer, a shock-absorbing steel column is fixedly installed on the top of the base, a bridge deck is arranged on the top of the shock-absorbing steel column, a buffer device is arranged inside the bridge deck, and a shock-absorbing device is arranged between the shock-absorbing steel column and the bridge deck.

[0007] Preferably, the buffer device includes an arc-shaped plate and a right-angle plate, and two rectangular holes of the same size are opened inside the bridge deck. An arc-shaped plate is provided inside the rectangular hole, and the arc-shaped plate is fixedly installed inside the rectangular hole. The arc-shaped plates are evenly distributed, and the right-angle plate is fixedly installed on the arc-shaped inner wall of the arc-shaped plate, and the bottom end of the right-angle plate is connected to the inner wall of the rectangular hole.

[0008] Preferably, a fixing block is provided at the bottom of the bridge deck corresponding to the surface of the shock-absorbing steel column, the fixing block is a right-angle type, and the top and side of the fixing block are fixedly installed on the bottom of the bridge deck and the surface of the shock-absorbing steel column respectively by fixing bolts.

[0009] Preferably, a stabilizing rod is provided between the outer surface of the shock-absorbing steel column and the base, the upper end of the stabilizing rod is fixedly connected to the outer surface of the shock-absorbing steel column, the top of the base is fixedly connected to a connecting column, the lower end of the stabilizing rod is inserted into the connecting column and fixedly connected to the connecting column, the shock-absorbing steel column is clamped and auxiliary supported by the stabilizing rod, the stability of the shock-absorbing steel column support is improved, and the overall stability of the bridge is better.

[0010] Preferably, the shock-absorbing device includes a shock-absorbing column, a shock-absorbing spring and a shock-absorbing pad. The shock-absorbing pad is fixedly installed on the top of the shock-absorbing steel column. A groove is opened at the upper end of the shock-absorbing steel column. The bottom of the inner end surface of the groove is fixedly connected to the shock-absorbing spring. The movable end of the shock-absorbing spring is fixedly connected to the shock-absorbing column. The top of the shock-absorbing column is fixedly connected to the bridge deck.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a seismic-resistant bridge steel structure, which has the following beneficial effects:

[0013] 1. The earthquake-resistant steel structure of the bridge, the buffer device includes an arc plate and a right-angle plate, two rectangular holes of the same size are opened inside the bridge deck, the inside of the rectangular hole is provided with an arc plate, the arc plate is fixedly installed inside the rectangular hole, the arc plates are evenly distributed, the right-angle plate is fixedly installed on the arc-shaped inner wall of the arc plate, and the bottom end of the right-angle plate is connected to the inner wall of the rectangular hole. When the bridge deck is vibrated and fluctuates, the arc plate and the right-angle plate can buffer part of the seismic shear wave, effectively improving the earthquake resistance of the bridge and enhancing the earthquake resistance stability of the bridge.

[0014] 2. In the earthquake-resistant bridge steel structure, a stabilizing rod is provided between the outer surface of the shock-absorbing steel column and the base. The top of the base is fixedly connected with a connecting column, and the lower end of the stabilizing rod is inserted into the connecting column. At the same time, the upper end of the stabilizing rod is fixedly connected to the outer surface of the shock-absorbing steel column. The shock-absorbing steel column is clamped and auxiliary supported by the stabilizing rod, thereby improving the stability of the shock-absorbing steel column support and improving the overall stability of the bridge.

[0015] 3. The earthquake-resistant steel structure of the bridge, the shock-absorbing device includes a shock-absorbing column, a shock-absorbing spring and a shock-absorbing pad. The shock-absorbing pad is fixedly installed on the top of the shock-absorbing steel column. A groove is opened on the upper end of the shock-absorbing steel column. The bottom of the inner end surface of the groove is fixedly connected to the shock-absorbing spring. The movable end of the shock-absorbing spring is fixedly connected to the shock-absorbing column. The top of the shock-absorbing column is fixedly connected to the bridge deck. When the bridge vibrates, the bridge deck squeezes the shock-absorbing column, so that the shock-absorbing column slides on the upper end of the shock-absorbing steel column. The shock-absorbing column squeezes the shock-absorbing spring, which causes the shock-absorbing spring to undergo elastic deformation, thereby improving the earthquake resistance of the bridge and protecting the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the side structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the bridge deck structure of the utility model.

[0020] In the figure: 1. base; 2. shock-absorbing steel column; 3. support column; 4. shock-absorbing column; 5. shock-absorbing spring; 6. bridge deck; 7. connecting column; 8. groove; 9. stabilizer bar; 10. fixing bolt; 11. shock-absorbing pad; 12. fixing block; 13. rectangular hole; 14. arc plate; 15. right-angle plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A seismic-resistant bridge steel structure includes a base 1, a plurality of support columns 3 are fixedly installed at the bottom of the base 1, the support columns 3 are deeply inserted into the soil layer and placed underground, a shock-absorbing steel column 2 is fixedly installed on the top of the base 1, a bridge deck 6 is arranged on the top of the shock-absorbing steel column 2, a buffer device is arranged inside the bridge deck 6, a shock-absorbing device is arranged between the shock-absorbing steel column 2 and the bridge deck 6, and the support columns 3 are deeply buried underground to provide a stable support for the entire bridge, the seismic shear wave is buffered by the buffer device, and then the shock is reduced by the shock-absorbing device.

[0023] Furthermore, the buffer device includes an arc plate 14 and a right-angle plate 15. Two rectangular holes 13 of the same size are opened inside the bridge deck 6. The interior of the rectangular hole 13 is provided with an arc plate 14. The arc plate 14 is fixedly installed inside the rectangular hole 13. The arc plates 14 are evenly distributed. The right-angle plate 15 is fixedly installed on the arc-shaped inner wall of the arc plate 14, and the bottom end of the right-angle plate 15 is connected to the inner wall of the rectangular hole 13. When the bridge deck 6 is vibrated and fluctuates, the arc plate 14 and the right-angle plate 15 can buffer part of the seismic shear wave, effectively improving the seismic resistance of the bridge and enhancing the seismic stability of the bridge.

[0024] Furthermore, a fixing block 12 is provided at the bottom of the bridge deck 6 corresponding to the surface of the shock-absorbing steel column 2. The fixing block 12 is a right-angle type. The fixing block 12 is fixedly installed at the top and the side of the fixing block 12 on the bottom of the bridge deck 6 and the surface of the shock-absorbing steel column 2 respectively by fixing bolts 10. The fixing block 12 makes the bridge deck 6 and the shock-absorbing steel column 2 more tightly connected together.

[0025] Furthermore, a stabilizing rod 9 is provided between the outer surface of the shock-absorbing steel column 2 and the base 1. The top of the base 1 is fixedly connected with a connecting column 7. The lower end of the stabilizing rod 9 is inserted into the connecting column 7. At the same time, the upper end of the stabilizing rod 9 is fixedly connected to the outer surface of the shock-absorbing steel column 2. The shock-absorbing steel column 2 is clamped and auxiliary supported by the stabilizing rod 9, thereby improving the stability of the support of the shock-absorbing steel column 2 and improving the overall stability of the bridge.

[0026] Furthermore, the shock-absorbing device includes a shock-absorbing column 4, a shock-absorbing spring 5 and a shock-absorbing pad 11. The shock-absorbing pad 11 is fixedly installed on the top of the shock-absorbing steel column 2. A groove 8 is opened at the upper end of the shock-absorbing steel column 2. The bottom of the inner end surface of the groove 8 is fixedly connected to the shock-absorbing spring 5. The movable end of the shock-absorbing spring 5 is fixedly connected to the shock-absorbing column 4. The top of the shock-absorbing column 4 is fixedly connected to the bridge deck 6. When the bridge vibrates, the bridge deck 6 squeezes the shock-absorbing column 4, so that the shock-absorbing column 4 slides on the upper end of the shock-absorbing steel column 2. The shock-absorbing column 4 squeezes the shock-absorbing spring 5, so that the shock-absorbing spring 5 undergoes elastic deformation, thereby improving the seismic resistance of the bridge and protecting the bridge.

[0027] Furthermore, the working principle is as follows: by burying the support column 3 deep underground, the entire bridge is provided with stable support. When the bridge deck 6 is vibrated and produces fluctuations, the arc plate 14 and the right-angle plate 15 can buffer part of the earthquake shear waves. The bridge deck 6 squeezes the shock-absorbing column 4, causing the shock-absorbing column 4 to slide on the upper end of the shock-absorbing steel column 2. The shock-absorbing column 4 squeezes the shock-absorbing spring 5, causing the shock-absorbing spring 5 to undergo elastic deformation, thereby improving the seismic resistance of the bridge and protecting the bridge. The shock-absorbing steel column 2 is clamped and auxiliary supported by the stabilizer bar 9 to improve the stability of the support of the shock-absorbing steel column 2, thereby improving the overall stability of the bridge.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seismic-resistant bridge steel structure, comprising a base (1), characterized in that: A plurality of support columns (3) are fixedly installed at the bottom of the base (1), and the support columns (3) are placed underground deep in the soil layer. A shock-absorbing steel column (2) is fixedly installed at the top of the base (1), and a bridge deck (6) is provided on the top of the shock-absorbing steel column (2). A buffer device is provided inside the bridge deck (6), and a shock-absorbing device is provided between the shock-absorbing steel column (2) and the bridge deck (6).

2. The earthquake-resistant steel bridge structure according to claim 1, characterized in that: The buffer device comprises an arc plate (14) and a right-angle plate (15); two rectangular holes (13) of the same size are opened inside the bridge deck (6); an arc plate (14) is arranged inside the rectangular hole (13); the arc plate (14) is fixedly installed inside the rectangular hole (13); the arc plates (14) are evenly distributed; the right-angle plate (15) is fixedly installed on the arc inner wall of the arc plate (14); and the bottom end of the right-angle plate (15) is connected to the inner wall of the rectangular hole (13).

3. The earthquake-resistant steel bridge structure according to claim 1 is characterized in that: A fixing block (12) is provided at the bottom of the bridge deck (6) corresponding to the surface of the shock-absorbing steel column (2); the fixing block (12) is of a right angle type; the fixing block (12) is fixedly mounted at the top and side of the fixing block (12) on the bottom of the bridge deck (6) and the surface of the shock-absorbing steel column (2) respectively by fixing bolts (10).

4. The earthquake-resistant steel bridge structure according to claim 1, characterized in that: A stabilizing rod (9) is provided between the outer surface of the shock-absorbing steel column (2) and the base (1); the upper end of the stabilizing rod (9) is fixedly connected to the outer surface of the shock-absorbing steel column (2); the top end of the base (1) is fixedly connected to a connecting column (7); the lower end of the stabilizing rod (9) is inserted into the connecting column (7) and fixedly connected to the connecting column (7).

5. The earthquake-resistant steel bridge structure according to claim 1, characterized in that: The shock absorbing device comprises a shock absorbing column (4), a shock absorbing spring (5) and a shock absorbing pad (11); the shock absorbing pad (11) is fixedly installed on the top of the shock absorbing steel column (2); a groove (8) is provided on the top of the shock absorbing steel column (2); the bottom of the inner end surface of the groove (8) is fixedly connected to the shock absorbing spring (5); the movable end of the shock absorbing spring (5) is fixedly connected to the shock absorbing column (4); and the top of the shock absorbing column (4) is fixedly connected to the bridge deck (6).

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