Vertical vibration reduction supporting device for bridge

Abstract

The utility model discloses a vertical vibration reduction supporting device for a bridge, which comprises an upper supporting plate and a lower supporting plate, the upper supporting plate and the lower supporting plate are respectively connected in a bridge body and a bridge pier through anchoring components, and a spherical crown lining plate and a spherical macromolecule wear-resisting plate are arranged between the upper supporting plate and the lower supporting plate. The spherical crown lining plate comprises a plane macromolecule wear-resisting plate, a vibration reduction metal base plate, a vibration reduction metal plate and a spherical metal lining plate, the plane macromolecule wear-resisting plate, the vibration reduction metal base plate and the vibration reduction metal plate are installed on the spherical metal lining plate, and a front face boss and a back face boss are arranged on the two faces of the vibration reduction metal plate respectively. The portion, between the front boss and the back boss, of the damping metal plate is a deformation area, a simple support structure is formed between the front boss and the back boss, and the spherical macromolecule wear-resisting plate is connected to the lower supporting plate. According to the utility model, the vertical impact load of the bridge is absorbed by utilizing the elastic deformation of the damping metal plate, and the impact load of the bridge body on the pier is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge vibration damping devices, in particular to a vertical vibration damping support device for bridges. Background Technique

[0002] As an important part of the bridge structure, the bridge vertical support device has important functions such as transmitting the beam load between the beam and the pier, ensuring the normal bridge span structure of the bridge, accommodating the deformation of the beam body, facilitating construction and maintenance. As a device for vertically connecting the beam body and the pier and abutment, the bridge vertical support device will transmit the impact load of the beam body to the bridge pier, causing the vibration of the bridge pier and the nearby foundation. The repeated impact vibration will cause the damage of the bridge pier and the pile foundation. At the same time, the impact vibration and the noise formed by the vibration will also affect the lives of the residents near the line. Therefore, we propose a vertical vibration damping support device for absorbing the vertical impact load of the bridge. Content of the Utility Model

[0003] The purpose of the utility model is to provide a vertical vibration damping support device for bridges to solve the above problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A vertical vibration damping support device for bridges of the utility model includes an upper support plate and a lower support plate. Both the upper support plate and the lower support plate are respectively connected to the bridge beam body and the bridge pier through anchoring components. A spherical crown liner and a spherical surface high molecular wear-resistant plate are successively arranged from top to bottom between the upper support plate and the lower support plate. The spherical crown liner includes a planar high molecular wear-resistant plate, a vibration damping metal backing plate, a vibration damping metal plate and a spherical surface metal liner. A groove is formed on the spherical surface metal liner. The planar high molecular wear-resistant plate, the vibration damping metal backing plate and the vibration damping metal plate are successively installed in the groove on the spherical surface metal liner from top to bottom. The planar high molecular wear-resistant plate is connected to the vibration damping metal backing plate. The vibration damping metal plate is a circular flat plate. A positive boss and a negative boss are respectively arranged on the two surfaces of the vibration damping metal plate. The positive boss and the negative boss are concentric rings. The part of the vibration damping metal plate between the positive boss and the negative boss is a deformation area. A simply supported structure is formed between the positive boss and the negative boss. The spherical surface high molecular wear-resistant plate is connected to the lower support plate.

[0006] Further, the anchoring component includes a bolt and a sleeve. Anchoring holes are formed on both the upper support plate and the lower support plate. The sleeve is connected to the anchoring hole through the bolt. The sleeve is embedded in the bridge beam body and the bridge pier through concrete.

[0007] Further, the upper support plate is a rectangular metal plate provided with a stop block structure.

[0008] Further, a flat stainless steel plate is provided between the upper support plate and the flat polymer wear-resistant plate, and the flat stainless steel plate is welded to the bottom surface of the upper support plate.

[0009] Further, the flat polymer wear-resistant plate has a circular flat shape, and the flat polymer wear-resistant plate is bonded to the vibration-damping metal backing plate through an adhesive.

[0010] Further, the vibration-damping metal plate is made of titanium alloy or alloy steel.

[0011] Further, the lower support plate is a rectangular metal plate with a spherical groove, the spherical polymer wear-resistant plate is a concave spherical wear-resistant plate, and the size of the spherical groove of the lower support plate is the same as the size of the spherical polymer wear-resistant plate.

[0012] Further, the spherical polymer wear-resistant plate is circular in the vertical projection direction, and the spherical polymer wear-resistant plate is bonded to the groove formed on the top surface of the lower support plate through an adhesive.

[0013] Further, a spherical stainless steel plate is provided between the spherical metal lining plate and the spherical polymer wear-resistant plate.

[0014] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0015] The present utility model utilizes the elastic deformation of the vibration-damping metal plate to absorb the vertical impact load of the bridge, reduces the impact load of the beam body on the pier, and designs the vibration-damping metal plate into a disc shape. While realizing the vertical vibration-damping function, the overall size of the device is greatly reduced, the height of the device is not increased, and the overall cost of the device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a cross-sectional view of the vertical vibration-damping support device for a bridge of the present utility model;

[0018] Figure 2 It is a front view of the vibration-damping metal plate;

[0019] Figure 3 It is a back view of the vibration-damping metal plate;

[0020] Figure 4 It is a cross-sectional view of the vibration-damping metal plate;

[0021] Description of reference numerals: 1, upper support plate; 2, lower support plate; 3, spherical crown liner; 31, planar polymer wear-resistant plate; 32, vibration damping metal backing plate; 33, vibration damping metal plate; 34, spherical metal liner; 331, front boss; 332, reverse boss; 333, deformation zone; 4, spherical polymer wear-resistant plate; 5, bolt; 6, sleeve; 7, planar stainless steel plate; 8, spherical stainless steel plate. Detailed implementation mode

[0022] As Figures 1-4 shown, a vertical vibration damping support device for a bridge includes an upper support plate 1 and a lower support plate 2. The upper support plate 1 and the lower support plate 2 are respectively connected to the bridge girder and the bridge pier through anchoring components. The anchoring components include bolts 5 and sleeves 6. Anchoring holes are provided on both the upper support plate 1 and the lower support plate 2. The sleeve 6 is connected to the anchoring hole through the bolt 5, and the sleeve is embedded in the bridge girder and the bridge pier by concrete.

[0023] A spherical crown liner 3 and a spherical polymer wear-resistant plate 4 are sequentially arranged between the upper support plate 1 and the lower support plate 2 from top to bottom. The spherical polymer wear-resistant plate 4 is connected to the lower support plate 2.

[0024] The lower support plate 2 is a rectangular metal plate with a spherical groove. The spherical polymer wear-resistant plate 4 is a concave spherical wear-resistant plate. The size of the spherical groove of the lower support plate 2 is the same as the size of the spherical polymer wear-resistant plate 4. The spherical polymer wear-resistant plate 4 is circular in the vertical projection direction. The spherical polymer wear-resistant plate 4 and the groove provided on the top surface of the lower support plate 2 are bonded by an adhesive.

[0025] The spherical crown liner 3 includes a planar polymer wear-resistant plate 31, a vibration damping metal backing plate 32, a vibration damping metal plate 33, and a spherical metal liner 34.

[0026] The upper support plate 1 is a rectangular metal plate provided with a stop structure. A planar stainless steel plate 7 is provided between the upper support plate 1 and the planar polymer wear-resistant plate 31. The planar stainless steel plate 7 is welded to the bottom surface of the upper support plate 1 by argon arc welding.

[0027] The planar polymer wear-resistant plate 31 is in the shape of a circular flat plate. The planar polymer wear-resistant plate 31 and the vibration damping metal backing plate 32 are bonded by an adhesive.

[0028] The vibration damping metal plate 33 is made of titanium alloy or alloy steel.

[0029] A spherical stainless steel plate 8 is provided between the spherical metal liner 34 and the spherical polymer wear-resistant plate 4. The spherical stainless steel plate 8 is welded to the lower spherical surface of the spherical metal liner 34 by argon arc welding. A spherical friction pair is formed between the spherical stainless steel plate 8 and the spherical polymer wear-resistant plate 4.

[0030] Grooves are formed on the spherical metal liner 34. The planar polymer wear-resistant plate 31, the damping metal backing plate 32, and the damping metal plate 33 are sequentially installed in the grooves on the spherical metal liner 34 from top to bottom, and the planar polymer wear-resistant plate 31 is exposed by 3 mm. The damping metal backing plate 32 and the spherical metal liner 34 are made of a metal alloy with sufficient strength to ensure sufficient mechanical strength, effectively transmit loads, and maintain structural stability.

[0031] The planar stainless steel plate 7 and the planar polymer wear-resistant plate 31 form a planar friction pair.

[0032] The planar polymer wear-resistant plate 31 and the damping metal backing plate 32 are connected to each other. The damping metal plate 33 is a circular flat plate. A front boss 331 and a rear boss 332 are respectively provided on the two surfaces of the damping metal plate 33. The front boss 331 and the rear boss 332 are concentric rings and do not overlap in the projection direction. The part of the damping metal plate 33 between the front boss 331 and the rear boss 332 is a deformation zone 333. A simply supported structure is formed between the front boss 331 and the rear boss 332. Under the action of loads on both the front and rear surfaces, the deformation zone 333 bends and deforms, so as to achieve the purpose of energy storage and vibration damping. In addition, in order to ensure that the load on the upper surface of the damping metal plate 33 is evenly transmitted to the front boss 331, the damping metal backing plate 32 has a certain thickness to ensure even load transmission. Similarly, in order to ensure that the load of the rear boss 332 of the damping metal plate 33 is evenly transmitted to the spherical metal liner 34, the circular groove surface of the spherical metal liner 34 should be flat and smooth.

[0033] Its working principle is as follows: The upper support plate 1 and the lower support plate 2 of the vertical vibration damping support device for bridges are respectively fixed to the bridge beam body and the bridge pier through bolts 5 and sleeves 6. The load of the beam body is transmitted to the bridge pier through the vertical vibration damping support device. When the vertical load passes through the damping metal plate 33, the damping metal plate 33 absorbs vibration energy through its own deformation, extends the vibration period, and achieves the effect of vertical vibration damping.

[0034] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A vertical vibration reduction support device for a bridge, characterized in that: The invention comprises an upper support plate (1) and a lower support plate (2), wherein the upper support plate (1) and the lower support plate (2) are respectively connected to a bridge beam and a bridge pier through an anchoring assembly, wherein a spherical crown lining plate (3) and a spherical polymer wear-resistant plate (4) are arranged in sequence from top to bottom between the upper support plate (1) and the lower support plate (2), wherein the spherical crown lining plate (3) comprises a flat polymer wear-resistant plate (31), a vibration-damping metal pad (32), a vibration-damping metal plate (33) and a spherical metal lining plate (34), wherein a groove is provided on the spherical metal lining plate (34), and wherein the flat polymer wear-resistant plate (31), the vibration-damping metal pad (32) and the vibration-damping metal plate (33) are arranged in sequence from top to bottom on the spherical metal lining plate In the groove on the plate (34), the surface polymer wear-resistant plate (31) and the vibration-damping metal pad (32) are connected, the vibration-damping metal plate (33) is a circular flat plate, and a front boss (331) and a rear boss (332) are respectively provided on the two sides of the vibration-damping metal plate (33), the front boss (331) and the rear boss (332) are concentric rings, the portion of the vibration-damping metal plate (33) between the front boss (331) and the rear boss (332) is a deformation zone (333), and a simply supported structure is formed between the front boss (331) and the rear boss (332), and the spherical polymer wear-resistant plate (4) is connected to the lower support plate (2).

2. The vertical vibration-damping support device for a bridge according to claim 1 is characterized in that: The anchoring assembly comprises a bolt (5) and a sleeve (6); the upper support plate (1) and the lower support plate (2) are both provided with anchoring holes; the sleeve (6) is connected to the anchoring hole via the bolt (5); and the sleeve is pre-embedded in the bridge beam and the pier via concrete.

3. The vertical vibration-damping support device for a bridge according to claim 1, characterized in that: The upper support plate (1) is a rectangular metal plate provided with a stop block structure.

4. The vertical vibration-damping support device for a bridge according to claim 3 is characterized in that: A flat stainless steel plate (7) is provided between the upper support plate (1) and the flat polymer wear-resistant plate (31), and the flat stainless steel plate (7) is welded to the bottom surface of the upper support plate (1).

5. The vertical vibration-damping support device for a bridge according to claim 1, characterized in that: The planar polymer wear-resistant plate (31) is in the shape of a circular flat plate, and the planar polymer wear-resistant plate (31) and the vibration-damping metal pad (32) are bonded together by an adhesive.

6. The vertical vibration-damping support device for a bridge according to claim 1, characterized in that: The vibration-damping metal plate (33) is made of titanium alloy or alloy steel.

7. The vertical vibration-damping support device for a bridge according to claim 1 is characterized in that: The lower support plate (2) is a rectangular metal plate with a spherical groove, the spherical polymer wear-resistant plate (4) is a concave spherical wear-resistant plate, and the size of the spherical groove of the lower support plate (2) is the same as the size of the spherical polymer wear-resistant plate (4).

8. The vertical vibration-damping support device for a bridge according to claim 7, characterized in that: The spherical polymer wear-resistant plate (4) is circular in the vertical projection direction, and the spherical polymer wear-resistant plate (4) is bonded to the groove provided on the top surface of the lower support plate (2) by an adhesive.

9. The vertical vibration-damping support device for a bridge according to claim 1, characterized in that: A spherical stainless steel plate (8) is provided between the spherical metal lining plate (34) and the spherical polymer wear-resistant plate (4).

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