Bridge pier transverse vibration control damper and control device

Abstract

The utility model relates to the technical field of bridge vibration reduction, in particular to a bridge pier transverse vibration control damper and a control device, and the bridge pier transverse vibration control damper comprises an elastic piece, a first mass block and a second mass block. Wherein one end of the elastic piece is connected with the pier; the first mass block is arranged at the other end of the elastic piece, a containing space is formed in the first mass block, and the containing space is used for containing liquid for providing damping; the second mass block is arranged in the containing space, the second mass block is connected with the side wall of the containing space through a spring, and the mass of the second mass block is smaller than that of the first mass block. The problems that in the prior art, a TMD needs to be provided with a special damping energy dissipation device, and the TMD design difficulty and manufacturing cost are increased can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge vibration reduction, and in particular to a bridge pier lateral vibration control damper and a control device. Background Art

[0002] With the heavy load of existing railway bridges and the increase in railway transportation volume, the axle weight of unit trains has been continuously increased, the traction quality of trains has been continuously improved, the existing lines have been speeded up on a large scale, and the traffic density has been continuously increased, and the railway transportation capacity and economic benefits have been significantly improved. However, the railway vehicle-bridge coupling phenomenon has gradually become prominent, causing the lateral vibration amplitude of the bridge piers to continue to increase, even exceeding the specification limit. The damage caused by excessive vibration of the bridge piers will greatly increase the labor intensity of bridge maintenance personnel, requiring more maintenance personnel, and increasing maintenance and repair costs; it will also cause train drivers to question the safety of the bridge and affect driving comfort. The existing bridge pier reinforcement measures are difficult to provide effective and stable shock absorption effects. In order to further improve the transportation capacity of heavy-load railways and ensure the balance and safety of heavy-load railway lines and bridges, it is necessary to combine the actual railway bridge shock absorption needs, through the application research of bridge shock absorption technology, develop suitable shock absorption devices, and use them in real bridges to achieve the purpose of bridge shock absorption and ensure the safety of railway bridge operations.

[0003] The lateral vibration of railway bridges is a very complex engineering and technical issue. When a train passes through a bridge, the weight of the train itself will further reduce the vibration frequency of the bridge. In addition, trains with different loads passing through the bridge will cause vibrations of different frequencies. Vibration control should cover a certain frequency range.

[0004] Tuned Mass Damper (TMD) is usually composed of a mass block, a spring, and a damping device. Currently, TMD has been successfully applied to control the vibration of engineering structures, such as wind vibration, earthquake, and other forms of vibration. However, it requires the installation of special damping energy dissipation devices, such as viscous dampers, magnetorheological dampers, friction dampers, and eddy current dampers. In addition, in order to ensure the optimal damping parameter design of TMD, the design difficulty and cost of TMD will be further increased, which makes its use in the field of structural engineering vibration reduction have certain limitations. Summary of the invention

[0005] The present application provides a lateral vibration control damper and a control device for a bridge pier, which can solve the problem in the prior art that a tuned mass damper needs to be provided with a special damping energy dissipation device, which will increase the design difficulty and cost of the TMD.

[0006] In order to achieve the above objectives, the technical solution adopted by this application is:

[0007] On the one hand, the utility model provides a bridge pier lateral vibration control damper, comprising:

[0008] an elastic member, one end of which is connected to the bridge pier;

[0009] A first mass block, which is arranged at the other end of the elastic member, wherein a receiving space is arranged in the first mass block, and the receiving space is used to contain a liquid providing damping;

[0010] The second mass block is arranged in the accommodation space, the second mass block is connected to the side wall of the accommodation space through a spring, and the mass of the second mass block is smaller than the mass of the first mass block.

[0011] In some optional solutions, a plurality of rollers are provided at the lower portion of the second mass block.

[0012] In some optional solutions, springs are provided on both sides of the second mass block, and the springs are pressed against the inner wall of the accommodating space.

[0013] In some optional schemes, the elastic member is an elastic plate, and the elastic plate is perpendicular to the expansion and contraction direction of the spring.

[0014] On the other hand, the utility model provides a bridge pier lateral vibration control device, characterized in that it includes:

[0015] The mounting seat is used to be arranged on the top of the pier. A plurality of pier lateral vibration control dampers are arranged on the mounting seat. The pier lateral vibration control dampers include:

[0016] An elastic member, one end of which is connected to the mounting seat;

[0017] A first mass block, which is arranged at the other end of the elastic member, wherein a receiving space is arranged in the first mass block, and the receiving space is used to contain a liquid providing damping;

[0018] The second mass block is arranged in the accommodation space, the second mass block is connected to the side wall of the accommodation space through a spring, and the mass of the second mass block is smaller than the mass of the first mass block.

[0019] In some optional schemes, the elastic member is an elastic plate arranged along the longitudinal bridge direction, and the elastic plate is perpendicular to the expansion and contraction direction of the spring.

[0020] In some optional solutions, the mounting base includes:

[0021] at least two longitudinal beams spaced apart transversely, with both ends of the longitudinal beams extending out of the bridge pier;

[0022] Two first cross beams are respectively arranged at the two ends of the longitudinal beam and are used for controlling the lateral vibration dampers of the plurality of bridge piers arranged at intervals in the transverse direction of the bridge.

[0023] In some optional solutions, a maintenance platform is also connected to the first crossbeam for repairing the lateral vibration control damper of the pier.

[0024] In some optional solutions, the mounting seat includes two mounting seat units, which are respectively located on both sides of the slide seat, and the mounting seat units include:

[0025] A plurality of portal frames arranged at intervals in the transverse direction of the bridge, wherein the portal frames are arranged on the tops of the piers, and the cross beams of the portal frames are used to install the lateral vibration control dampers of the piers;

[0026] The second cross beam is arranged in the transverse direction of the bridge, and the second cross beam is connected with a plurality of cross beams arranged along the longitudinal direction of the portal.

[0027] In some optional schemes, the outermost door frame of each mounting seat unit is provided with an inclined support.

[0028] The beneficial effects brought by the technical solution provided by the embodiment of the present application include: connecting one end of the elastic member to the bridge pier, the first mass block is arranged at the other end of the elastic member, a receiving space is arranged in the first mass block, and a liquid providing damping is contained, a second mass block is arranged in the receiving space, and the second mass block is connected to the side wall of the receiving space through a spring. The tuned liquid mass damper TLMD composed of the liquid contained in the receiving space, the second mass block and the spring, that is, the small TLMD, can provide damping for the first mass block, that is, provide damping for the large TMD composed of the elastic member, the first mass block and the small TLMD, without adding a special damping device to provide damping for the large TMD, and in this way, the smaller mass of the small TLMD can provide a larger damping ratio for the large TMD. In addition, the present solution adopts the method of small TLMD providing damping for the large TMD, which is simple in design and construction, and the design parameters are easy to adjust and design. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the lateral vibration control damper of the bridge pier in the embodiment of the present application;

[0031] Figure 2 This is a schematic structural diagram of the first bridge pier lateral vibration control device in the embodiment of the present application;

[0032] Figure 3This is a structural schematic diagram of a second bridge pier lateral vibration control device in an embodiment of the present application;

[0033] Figure 4 It is a schematic structural diagram of the third bridge pier lateral vibration control device in the embodiment of the present application.

[0034] In the figure: 1, elastic member; 2, bridge pier; 21, sliding seat; 3, first mass block; 4, spring; 5, second mass block; 51, roller; 6, mounting seat; 61, longitudinal beam; 62, first cross beam; 63, maintenance platform; 64, door frame; 65, second cross beam; 66, oblique support. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1 As shown, the utility model provides a bridge pier lateral vibration control damper, comprising: an elastic member 1, a first mass block 3 and a second mass block 5. Among them, one end of the elastic member 1 is connected to the bridge pier 2; the first mass block 3 is arranged at the other end of the elastic member 1, and a receiving space is arranged in the first mass block 3, and the receiving space is used to hold liquid providing damping; the second mass block 5 is arranged in the receiving space, and the second mass block 5 is connected to the side wall of the receiving space through a spring 4, and the mass of the second mass block 5 is less than the mass of the first mass block 3.

[0038] When using the bridge pier lateral vibration control damper, one end of the elastic member 1 is connected to the bridge pier 2, the first mass block 3 is arranged at the other end of the elastic member 1, a receiving space is arranged in the first mass block 3, and a liquid providing damping is contained, a second mass block 5 is arranged in the receiving space, and the second mass block 5 is connected to the side wall of the receiving space through a spring 4. The tuned mass damper TMD composed of the liquid contained in the receiving space, the second mass block 5 and the spring 4, that is, the small TLMD, can provide damping for the first mass block 3, that is, provide damping for the large TMD composed of the elastic member 1, the first mass block 3 and the small TLMD, without adding a special damping device to provide damping for the large TMD, and in this way, the smaller mass of the small TLMD can provide a larger damping ratio for the large TMD. In addition, this scheme adopts the method of small TLMD providing damping for the large TMD, which is simple in design and construction, and the design parameters are easy to adjust and design. The design of the micro-vibration of pier 2 is more reasonable. If the amplitude of the micro-vibration of pier 2 amplified and transmitted to TMD is small, the stroke of the damper designed specifically for TMD is affected by the damper gap, and it is difficult to achieve the optimal vibration reduction effect. However, through the secondary amplification of the small TLMD, the vibration reduction effect can be better exerted. In addition, multiple pier lateral vibration control dampers can be used in combination and set on the top of pier 2. The first mass block 3, the second mass block 5 and the spring 4 of different pier lateral vibration control dampers adopt different design parameters to adapt to different pier vibration conditions.

[0039] In this embodiment, the connection point between the elastic member 1 and the first mass block 3 is located in the middle of the first mass block 3, which can make the entire damper more balanced and stable. If the first mass block 3 is a cube or a cuboid, when the elastic member 1 is a columnar member, the elastic member 1 is connected to the middle of one side of the cube or the cuboid and is perpendicular to the side. When the elastic member 1 is a plate-shaped member, the elastic member 1 is connected to the axial symmetry line of one side of the cube or the cuboid; if the first mass block 3 is a cylinder, the elastic member 1 is coaxially arranged with the cylinder. When the elastic member 1 is a plate-shaped member, the elastic member 1 is parallel to the axis of the cylinder and is located on the radial line of the cylinder, and the center line is in the same direction as the axis of the cylinder.

[0040] In addition, in this example, the spring 4 is arranged along the transverse direction of the bridge.

[0041] In some optional embodiments, a plurality of rollers 51 are provided at the lower portion of the second mass block 5 .

[0042] In this embodiment, the second mass block 5 is arranged at the bottom of the accommodation space, and a plurality of rollers 51 are arranged at the lower part of the second mass block 5, so that when the second mass block 5 slides at the bottom of the accommodation space, the friction resistance is reduced by the rollers 51 arranged at the lower part. In other embodiments, the rollers 51 may not be arranged, but the resistance of the second mass block 5 when sliding at the bottom of the accommodation space is larger, which does not affect its function.

[0043] In some optional embodiments, springs 4 are provided on both sides of the second mass block 5 , and the springs 4 are supported against the inner wall of the accommodating space.

[0044] In this embodiment, springs 4 are arranged on both sides of the second mass block 5, and the springs 4 are against the inner wall of the accommodating space. The springs 4 on both sides of the second mass block 5 provide elastic stiffness for the second mass block 5, so that the second mass block 5 can run more smoothly at the bottom of the accommodating space when it is vibrated.

[0045] In some optional embodiments, the elastic member 1 is an elastic plate, and the elastic plate is perpendicular to the expansion and contraction direction of the spring 4 .

[0046] In this embodiment, the elastic member 1 is an elastic plate and is arranged on the top of the pier 2 along the longitudinal direction of the bridge. When the pier 2 vibrates laterally, the elastic plate deforms laterally to provide elastic stiffness for the first mass block 3 .

[0047] like Figure 2 As shown, on the other hand, the utility model also provides a bridge pier lateral vibration control device, including: a mounting seat 6 and a plurality of bridge pier lateral vibration control dampers.

[0048] The mounting seat 6 is used to be arranged on the top of the pier 2, and a plurality of pier lateral vibration control dampers are arranged on the mounting seat 6, and the pier lateral vibration control dampers include: an elastic member 1, a first mass block 3 and a second mass block 5. One end of the elastic member 1 is connected to the pier 2; the first mass block 3 is arranged at the other end of the elastic member 1, and a receiving space is arranged in the first mass block 3, and the receiving space is used to contain liquid providing damping; the second mass block 5 is arranged in the receiving space, and the second mass block 5 is connected to the side wall of the receiving space through a spring 4, and the mass of the second mass block 5 is less than the mass of the first mass block 3.

[0049] In this embodiment, a plurality of pier lateral vibration control dampers are arranged on the top of the pier 2 through the mounting seat 6, and the pier lateral vibration control damper can adopt one of the above embodiments. In this example, one end of the elastic member 1 of the pier lateral vibration control damper is connected to the mounting seat 6, and the mounting seat 6 is arranged on the top of the pier 2. The first mass block 3 is arranged at the other end of the elastic member 1, and a receiving space is arranged in the first mass block 3, and a liquid providing damping is contained. A second mass block 5 is arranged in the receiving space, and the second mass block 5 is connected to the side wall of the receiving space through a spring 4. The tuned mass damper TMD composed of the liquid contained in the receiving space, the second mass block 5 and the spring 4 is a small TLMD. When the pier 2 vibrates, the vibration is transmitted to the first mass block 3 through the elastic member 1. The small TLMD can provide damping for the first mass block 3, that is, provide damping for the large TMD composed of the elastic member 1, the first mass block 3 and the small TLMD. There is no need to add a special damping device to provide damping for the large TMD. In this way, the smaller mass of the small TLMD can provide a larger damping ratio for the large TMD. In addition, this scheme adopts the method of small TLMD to provide damping for the large TMD. The design and structure are simple, and the design parameters are easy to adjust and design. The design of the micro-vibration of the pier 2 is more reasonable. If the amplitude of the micro-vibration of the pier top of the pier 2 is amplified and transmitted to the TMD, the damper stroke specially designed for the TMD is affected by the damper gap, and it is difficult to achieve the optimal vibration reduction effect. However, through the secondary amplification of the small TLMD, the vibration reduction effect can be better exerted. In this solution, multiple pier lateral vibration control dampers are used in combination and are set on the top of pier 2. The first mass block 3, the second mass block 5 and the spring 4 of different pier lateral vibration control dampers use different design parameters to adapt to different pier vibration conditions.

[0050] In some optional embodiments, the elastic member 1 is an elastic plate arranged along the longitudinal bridge direction, and the elastic plate is perpendicular to the expansion and contraction direction of the spring 4 .

[0051] In this embodiment, the elastic member 1 is an elastic plate and is arranged on the top of the pier 2 along the longitudinal direction of the bridge. When the pier 2 vibrates laterally, the elastic plate deforms laterally to provide elastic stiffness for the first mass block 3 .

[0052] In some optional embodiments, the mounting base 6 includes: at least two longitudinal beams 61 arranged at intervals in the transverse direction and two first transverse beams 62. The two ends of the longitudinal beam 61 extend out of the bridge pier 2; the two first transverse beams 62 are respectively arranged at the two ends of the longitudinal beam 61, and are used to control the transverse vibration dampers of the multiple bridge piers arranged at intervals in the transverse direction of the bridge.

[0053] In this embodiment, the longitudinal beam 61 is longitudinally arranged on the top of the pier 2, the two ends of the longitudinal beam 61 extend out of the top of the pier 2, and two first cross beams 62 are respectively arranged at the two ends of the longitudinal beam 61, and multiple pier transverse vibration control dampers are installed on the first cross beam 62, and the multiple pier transverse vibration control dampers are arranged transversely at intervals. Such an arrangement can distribute the weight of the multiple installed pier transverse vibration control dampers to the top of the pier 2 relatively evenly.

[0054] In this example, three longitudinal beams 61 are provided, two of which are located on both sides of the two slides 21, and the other is located between the two slides 21. This can better distribute the weight of the lateral vibration control damper of the pier relatively evenly to the top of the pier 2.

[0055] like Figure 3 As shown, in some optional embodiments, the first cross beam 62 is also connected to a maintenance platform 63 for repairing the lateral vibration control damper of the pier.

[0056] In this embodiment, the lateral vibration control damper of the pier is arranged below the first crossbeam 62, and the elastic member 1 is connected to the first crossbeam 62. When the elastic member 1 adopts an elastic plate, the elastic plate is connected to the first crossbeam 62, and the elastic plate is arranged along the longitudinal direction of the bridge. The elastic plates of multiple pier lateral vibration control dampers are arranged at intervals in the transverse direction. The first mass block 3 is located below the first crossbeam 62, the spring 4 and the second mass block 5 are arranged in the accommodating space in the first mass block 3, and the maintenance platform 63 is connected to the first crossbeam 62 for inspecting the lateral vibration control damper of the pier.

[0057] In addition, the first mass block 3 is formed by splicing 6 steel plates, and the accommodation space can be formed by splicing 6 steel plates, or it can be a separate accommodation box set in the 6 steel plates. In this example, the accommodation box is set in the rectangular parallelepiped formed by splicing 6 steel plates, which serves as the accommodation space for the second mass block 5, the spring 4 and the damping liquid. When it is necessary to design the first mass block 3 of different bridge pier lateral vibration control dampers to have different masses, different rectangular parallelepipeds can be filled with weight blocks to change the overall mass of the first mass block 3, so as to keep the appearance of the first mass block 3 of all bridge pier lateral vibration control dampers consistent.

[0058] like Figure 4 As shown, in some optional embodiments, the mounting seat 6 includes two mounting seat units, which are respectively located on both sides of the slide 21, and the mounting seat units include: a plurality of gantries 64 spaced apart in the transverse direction of the bridge, the gantries 64 are arranged on the top of the pier 2, and the crossbeams of the gantries 64 are used to install the lateral vibration control damper of the pier; and also include a second crossbeam 65, which is arranged in the transverse direction of the bridge, and the second crossbeam 65 is connected to the crossbeams of the plurality of gantries 64 arranged along the longitudinal direction of the bridge.

[0059] In this embodiment, multiple pier transverse vibration control dampers can also be installed on the pier top platform of the pier 2 and on both sides of the slide 21. In this example, two mounting seat units are set on the pier top platform of the pier 2, respectively located on both sides of the slide 21, that is, located at both ends of the pier 2 in the transverse direction of the bridge. Each mounting seat unit includes multiple portal frames 64 arranged at intervals in the transverse direction of the bridge. The multiple portal frames 64 arranged at intervals in the transverse direction of the bridge are used to set the pier transverse vibration control damper on the crossbeam of the portal frame 64. The second crossbeam 65 is connected to the crossbeams of all the portal frames 64 of the mounting seat unit. The crossbeams of the portal frames 64 are arranged along the longitudinal direction of the bridge to make the mounting seat unit more stable. The second crossbeam 65 can also be set on the pier transverse vibration control damper. In this example, each mounting seat unit includes two portal frames 64. In other embodiments, more portal frames 64 can also be used.

[0060] During specific use, the mounting base can be selected according to actual needs or installation environment to install all the pier lateral vibration control dampers.

[0061] In some optional embodiments, the outermost door frame 64 of each mounting seat unit is provided with an inclined support 66. In this embodiment, the outermost door frame 64 is provided with an inclined support 66 to support the outermost door frame 64, so that all the door frames 64 can be more stable.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0064] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A bridge pier lateral vibration control damper, characterized in that: include: An elastic member (1), one end of which is connected to the bridge pier (2); A first mass block (3) is arranged at the other end of the elastic member (1), wherein a receiving space is provided in the first mass block (3), and the receiving space is used to contain a liquid that provides damping; A second mass block (5) is arranged in the accommodation space, the second mass block (5) is connected to the side wall of the accommodation space via a spring (4), and the mass of the second mass block (5) is smaller than the mass of the first mass block (3).

2. The bridge pier lateral vibration control damper according to claim 1, characterized in that: A plurality of rollers (51) are provided at the lower part of the second mass block (5).

3. The bridge pier lateral vibration control damper according to claim 1, characterized in that: Springs (4) are provided on both sides of the second mass block (5), and the springs (4) are supported against the inner wall of the accommodating space.

4. The bridge pier lateral vibration control damper according to claim 1, characterized in that: The elastic member (1) is an elastic plate, and the elastic plate is perpendicular to the expansion and contraction direction of the spring (4).

5. A bridge pier lateral vibration control device, characterized in that: include: A mounting seat (6) is used to be arranged on the top of a pier (2), and a plurality of pier lateral vibration control dampers are arranged on the mounting seat (6), and the pier lateral vibration control dampers include: An elastic member (1), one end of which is connected to a mounting seat (6); A first mass block (3) is arranged at the other end of the elastic member (1), wherein a receiving space is provided in the first mass block (3), and the receiving space is used to contain a liquid that provides damping; A second mass block (5) is arranged in the accommodation space, the second mass block (5) is connected to the side wall of the accommodation space via a spring (4), and the mass of the second mass block (5) is smaller than the mass of the first mass block (3).

6. The bridge pier lateral vibration control device according to claim 5, characterized in that: The elastic member (1) is an elastic plate arranged along the longitudinal bridge direction, and the elastic plate is perpendicular to the expansion and contraction direction of the spring (4).

7. The bridge pier lateral vibration control device according to claim 5, characterized in that: The mounting seat (6) comprises: at least two longitudinal beams (61) arranged at intervals in the transverse direction, with both ends of the longitudinal beams (61) extending out of the bridge pier (2); Two first cross beams (62) are respectively arranged at the two ends of the longitudinal beam (61) and are used for controlling the transverse vibration of a plurality of bridge piers spaced apart in the transverse direction of the bridge.

8. The bridge pier lateral vibration control device according to claim 7, characterized in that: The first crossbeam (62) is also connected to a maintenance platform (63) for repairing the lateral vibration control damper of the bridge pier.

9. The bridge pier lateral vibration control device according to claim 5, characterized in that: The mounting seat (6) comprises two mounting seat units, the two mounting seat units are respectively located on both sides of the slide seat (71), and the mounting seat units comprise: A plurality of portal frames (64) arranged at intervals in the transverse direction of the bridge, wherein the portal frames (64) are arranged on the top of the pier (2), and the cross beams of the portal frames (64) are used to install the lateral vibration control damper of the pier; The second cross beam (65) is arranged in the transverse direction of the bridge, and the second cross beam (65) is connected to the cross beams of the plurality of portal frames (64) arranged in the longitudinal direction of the bridge.

10. The bridge pier lateral vibration control device according to claim 9, characterized in that: The outermost door frame (64) of each mounting seat unit is provided with an oblique support (66).

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