Bridge steel structure with anti-seismic effect

Abstract

The utility model relates to the technical field of bridge steel structures, and discloses a bridge steel structure with an anti-seismic effect, which comprises a bridge and a pile body for supporting the bridge, a connecting body is arranged on the end face of the bridge, a ball hinging device is fixedly arranged on the end face of the bridge through the connecting body, an anti-seismic and energy-absorbing telescopic rod is hinged between the two ball hinging devices, and offset generated by vibration is impeded through hinging of a ball and stretching and retracting of the anti-seismic and energy-absorbing telescopic rod, so that displacement is effectively reduced. Due to the fact that the anti-seismic and energy-absorbing telescopic rod with the shock-absorbing and energy-absorbing structure is fixed between the two components of the bridge, shock-absorbing and displacement-resisting effects can be achieved between the two components of the bridge steel structure in six directions.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge steel structures, in particular to a bridge steel structure with earthquake resistance effect. Background Technique

[0002] A steel structure is a structure 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 sections and steel plates, and rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are adopted. Welds, bolts or rivets are usually used to connect between the components or parts. Because of its light self-weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. Steel structures are prone to rust, and general steel structures need to be derusted, galvanized or painted, and need to be maintained regularly.

[0003] A bridge generally refers to a structure erected over rivers, lakes and seas to enable vehicles, pedestrians, etc. to pass smoothly. To adapt to the modern rapidly developing transportation industry, a bridge is also extended to a building that is erected across mountain streams, poor geology or meets other transportation needs to make the passage more convenient. A bridge generally consists of an upper structure, a lower structure, bearings and auxiliary structures. The upper structure is also called the bridge span structure and is the main structure for crossing obstacles; the lower structure includes abutments, piers and foundations; the bearing is a force transmission device set at the supporting place of the bridge span structure and the pier or abutment; the auxiliary structures refer to approach slabs, conical slopes, revetments, diversion projects, etc.

[0004] The existing steel structure bridges have insufficient earthquake resistance performance. If the bridge encounters an earthquake, the earthquake action on the bridge gradually amplifies from bottom to top, thus causing damage to the main body of the bridge. Seriously, it will lead to bridge collapse and casualties. Therefore, we propose a bridge steel structure with good earthquake resistance effect. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a bridge steel structure with earthquake resistance effect is provided, which solves the above problems.

[0006] The utility model solves its technical problems by adopting the following technical solutions:

[0007] A bridge steel structure with earthquake resistance effect includes a bridge and pile bodies for supporting the bridge. A spherical hinge is fixedly arranged on the pile body through a connecting body, and a spherical hinge is fixedly arranged on the end face of the bridge through the connecting body. An earthquake-resistant energy-absorbing telescopic rod is hinged between the two spherical hinges. The impedance of the offset generated by vibration is effectively reduced through the hinge of the spherical head and the telescopic of the earthquake-resistant energy-absorbing telescopic rod, thereby reducing the displacement.

[0008] Preferably, the earthquake-resistant energy-absorbing telescopic rod comprises a sleeve rod with a one-way opening and a core rod with an energy-absorbing piston at one end. The energy-absorbing piston is slidably inserted into the sleeve rod, and a stretching braking spring is connected between the front end of the core rod and the inner wall of the sleeve rod.

[0009] Preferably, a limit fixing ring is fixedly arranged in the sleeve rod. The core rod passes through the limit fixing ring to achieve telescoping, and a contraction braking spring is connected between the limit fixing ring and the core rod.

[0010] Preferably, a sealing ring is arranged at the opening end of the sleeve rod, and hydraulic oil is filled in the sleeve rod. A number of through deceleration holes are arranged on the energy-absorbing piston. When the core rod pushes the energy-absorbing piston to move under the action of, the oil quickly passes through the deceleration holes on the energy-absorbing piston, thereby absorbing and converting kinetic energy into heat energy, effectively limiting the vibration of the bridge and its swing in strong wind weather.

[0011] Preferably, in order to provide a certain amount of buffer protection before reaching the limit stroke, a safety spring is sleeved on the core rod. The safety spring abuts against the right end face of the end plate fixedly arranged on the core rod. When the core rod contracts to the limit stroke, the safety spring starts to act to limit the further insertion of the core rod into the sleeve rod to provide good protection.

[0012] Preferably, in order to reduce damage or reduced lifespan of the sealing ring caused by external pollution, a dust-proof rubber sleeve is sleeved on the outside of the core rod, and one end of the dust-proof rubber sleeve is seamlessly connected to the earthquake-resistant energy-absorbing telescopic rod.

[0013] The advantages and positive effects of the present utility model are: by fixing an earthquake-resistant energy-absorbing telescopic rod with a shock-absorbing and energy-absorbing structure between two components of a bridge, the two components of the bridge steel structure can perform shock absorption and anti-displacement functions in six directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is Figure 1 the schematic structural diagram inside the earthquake-resistant energy-absorbing telescopic rod 14 in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0018] The embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings:

[0019] As Figure 1-2 shown, a bridge steel structure with seismic resistance effect of the present utility model includes a bridge 10 and a pile body 24 for supporting the bridge 10. A ball joint 12 is fixedly arranged on the pile body 24 through a connecting body 13, and a ball joint 12 is fixedly arranged on the end face of the bridge 10 through the connecting body 13. An anti-seismic energy-absorbing telescopic rod 14 is hinged between the two ball joints 12. The impedance of the offset generated by the vibration through the hinge of the ball and the telescopic of the anti-seismic energy-absorbing telescopic rod 14 effectively reduces the displacement.

[0020] Preferably, the anti-seismic energy-absorbing telescopic rod 14 includes a sleeve rod 19 with a one-way opening and a core rod 15 with an energy-absorbing piston 22 at one end. The energy-absorbing piston 22 is slidably inserted into the sleeve rod 19, and a stretching braking spring 23 is connected between the front end of the core rod 15 and the inner wall of the sleeve rod 19.

[0021] Preferably, a limit fixing ring 21 is also fixedly arranged in the sleeve rod 19. The core rod 15 passes through the limit fixing ring 21 to realize telescoping, and a contraction braking spring 20 is connected between the limit fixing ring 21 and the core rod 15.

[0022] Preferably, a sealing ring 18 is arranged at the opening end of the sleeve rod 19, and hydraulic oil is filled in the sleeve rod 19. A number of through deceleration holes are arranged on the energy-absorbing piston 22. When the core rod 15 pushes the energy-absorbing piston 22 to move under the action, the oil quickly passes through the deceleration holes on the energy-absorbing piston 22, thereby absorbing the kinetic energy and converting it into heat energy, effectively restricting the vibration of the bridge 10 and the swing under strong wind weather.

[0023] Preferably, in order to provide a certain buffer protection before reaching the limit stroke, a safety spring 17 is sleeved on the core rod 15. The safety spring 17 abuts against the right end face of the end plate 16 fixedly arranged on the core rod 15. When the core rod 15 contracts to the limit stroke, the safety spring 17 starts to act to restrict the further insertion of the core rod 15 into the sleeve rod 19 to provide good protection.

[0024] Preferably, in order to reduce the damage or lifespan reduction of the sealing ring 18 caused by external pollution, a dust-proof rubber sleeve 11 is sleeved on the outside of the core rod 15, and one end of the dust-proof rubber sleeve 11 is seamlessly connected with the anti-seismic energy-absorbing telescopic rod 14.

[0025] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific implementation manners. Any other implementation manners obtained by those skilled in the art based on the technical solution of the present utility model also fall within the scope of protection of the present utility model.

Claims

1. A bridge steel structure with earthquake resistance, comprising a bridge (10) and a pile (24) supporting the bridge (10), characterized in that: A ball joint (12) is fixedly provided on the pile body (24) via a connector (13), and a ball joint (12) is fixedly provided on the end face of the bridge (10) via the connector (13), and an anti-vibration energy-absorbing telescopic rod (14) is hingedly provided between the two ball joints (12).

2. The bridge steel structure with earthquake-resistant effect according to claim 1, characterized in that: The anti-vibration energy-absorbing telescopic rod (14) comprises a one-way open sleeve rod (19) and a core rod (15) having an energy-absorbing piston (22) at one end, the energy-absorbing piston (22) being slidably inserted in the sleeve rod (19), and an elongated brake spring (23) being connected between the front end of the core rod (15) and the inner wall of the sleeve rod (19).

3. The bridge steel structure with earthquake resistance according to claim 2 is characterized in that: A position-limiting fixing ring (21) is also fixedly provided in the sleeve rod (19), the core rod (15) passes through the position-limiting fixing ring (21) to achieve extension and retraction, and a contraction brake spring (20) is connected between the position-limiting fixing ring (21) and the core rod (15).

4. The bridge steel structure with earthquake-resistant effect according to claim 3 is characterized in that: A sealing ring (18) is provided at the open end of the sleeve rod (19), and hydraulic oil is filled in the sleeve rod (19). A plurality of penetrating deceleration holes are provided on the energy absorbing piston (22).

5. The bridge steel structure with earthquake resistance according to claim 4 is characterized in that: A safety spring (17) is sleeved on the core rod (15), and the safety spring (17) abuts against the right end surface of an end plate (16) fixedly arranged on the core rod (15).

6. The bridge steel structure with earthquake resistance according to claim 5 is characterized in that: A dustproof rubber sleeve (11) is sleeved on the outside of the core rod (15), and one end of the dustproof rubber sleeve (11) is seamlessly connected to the anti-vibration energy-absorbing telescopic rod (14).

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