CN219342820U - Bridge damping device - Google Patents

Abstract

The utility model discloses a bridge damping device, which relates to the technical field of bridge damping, and consumes the energy of earthquake by arranging a high damping member to limit the displacement of a structure, and weakens the earthquake force transmitted from an upper structure to a pier; the central damping component comprises a first damping piece and a second damping piece, and the top supporting plate and the bottom supporting plate are mutually matched and then connected through the first damping piece and the second damping piece; the outside damper is including being the locating part of circumference symmetry setting between top backup pad, bottom support board, and the one end and the top backup pad of locating part are articulated, and the other end and a sliding tube sliding connection, and first damper, second damper and outside damper can cushion, cushion the effort that bears on the bridge, have the degree of freedom of mutual displacement between first damper and the second damper simultaneously to and have the degree of freedom of mutual displacement between locating part and the bottom support board, thereby can cushion, cushion the effort of the different directions that the bridge received.

Description

Bridge damping device

Technical Field

The utility model relates to the technical field of bridge damping, in particular to a bridge damping device.

Background

The bridge anti-seismic indirect reinforcement mode is generally divided into a damping technology for replacing a support (additionally provided with energy-consuming components) and a base swing vibration isolation technology. The damping technology utilizes special damping components or devices to enable the damping components or devices to enter plasticity at first in strong vibration, generate larger damping and consume energy of an input structure.

The highway bridge pier column has various forms, and is mostly short-connected and short-spanned, and under the condition of temporarily interrupting traffic, the shock-absorbing and isolating support can be replaced or energy-consuming components can be added. The steel bridge has flexible structure, the connecting bolts are easy to replace, and the vibration isolation technology is relatively easy to realize. Therefore, the current application of the seismic reduction and isolation technology for reinforcing the bridge is focused on the two aspects.

The bridge damping support is an important component for connecting and restraining the upper and lower structures of a bridge, and has the functions of fixing the upper structure on a pier, bearing various forces acting on the upper structure and reliably transmitting the forces to the pier, and the support can adapt to the corner and displacement of the upper structure under the actions of load, temperature, concrete shrinkage and creep, so that the upper structure can be freely deformed without generating additional internal force.

The utility model of patent number CN215252291U discloses a bridge shock-absorbing support, comprising an elastic rubber bag, a piston rod, a top plate, a sliding rod and other parts, wherein after the elastic rubber bag is compressed, the gas in the elastic rubber bag is discharged into the inflator through the outside of the air pipe, so that the air pressure in the inflator is increased and pushes the piston rod to rise, therefore, most of the energy of the vibration of the bridge body can be counteracted by the elastic rubber bag matched with an air assisting component, and after the gas pushes the piston rod to rise and contact with the top plate, the elastic rubber bag can be protected, and the elastic rubber bag is prevented from being damaged due to the fact that the elastic rubber bag is excessively deformed instantaneously; the energy that produces through elastic rubber bag buffering bridge top-down vibrations in this patent, and the slide bar sets up around the roof, has restricted the displacement direction of roof and can only be for reciprocating, and the effort direction that the bridge bore is not unique, including vertical, horizontal equi-force, consequently, only can cushion, the top-down vibrations of shock attenuation bridge transmission in this patent, is difficult to cushion the shock attenuation to the effort of other directions of bridge transmission, and the buffering shock attenuation effect to the effort that the bridge bore is limited.

The foregoing is provided merely for the purpose of facilitating an understanding of the present utility model and is not intended to represent the closest prior art to the foregoing.

Disclosure of Invention

The utility model mainly aims to provide a bridge damping device which is used for solving the problems that the existing bridge damping support has a single damping direction and limited damping effect on acting force borne by a bridge.

In order to achieve the above object, the present utility model provides a bridge damper, comprising:

a top support plate having a first connector; the bottom supporting plate is provided with a second connecting piece and a sliding cylinder;

the central damping component comprises a first damping piece arranged on the top supporting plate and a second damping piece arranged on the bottom supporting plate; a first cavity is arranged in the second damping piece; one end of the first damping piece, which is far away from the top supporting plate, is in sliding connection with the bottom supporting plate; one end of the second shock absorbing member, which is far away from the bottom supporting plate, is in sliding connection with the top supporting plate; the first damping piece is movably arranged in the first cavity, so that the first damping piece, the second damping piece and the third damping piece have the freedom degree of mutual displacement;

the outer side damping component comprises limiting pieces which are symmetrically arranged between the top supporting plate and the bottom supporting plate in the circumferential direction; one end of the limiting piece is hinged with the top supporting plate, and the other end of the limiting piece is in sliding connection with the sliding cylinder, so that the limiting piece and the bottom supporting plate have the freedom degree of mutual displacement.

As a further improvement of the utility model, the second shock absorbing member comprises a second shock absorbing cylinder and a shock absorbing pad which is arranged around the second shock absorbing cylinder and wraps the second shock absorbing cylinder; the height of the second shock absorption cylinder is lower than that of the shock absorption pad, and a first cavity is formed in the second shock absorption cylinder in a hollow mode; a baffle ring is arranged in the first cavity; a through hole is formed in the center of the baffle ring, and a first sliding space is formed between the baffle ring and one end, close to the bottom supporting plate, of the second shock absorption cylinder; one end of the shock pad is fixedly arranged on the bottom supporting plate, and the other end of the shock pad is in contact connection with the top supporting plate.

As a further improvement of the utility model, the first damping piece comprises a first support column fixedly connected with the top support plate, a first damping spring sleeved on the first support column, and a limiting plate detachably arranged on the end of the first support column far away from the top support plate; one end, far away from the top supporting plate, of the first supporting column penetrates through the through hole and is positioned in the first sliding space to be connected with the limiting plate; and two ends of the first damping spring are respectively in contact connection with the top supporting plate and the baffle ring.

As a further improvement of the utility model, the limiting piece comprises a first limiting cylinder, a first limiting column arranged in the first limiting cylinder in a sliding way, and a first sliding head arranged at the end of the first limiting cylinder far away from the first limiting column; the first sliding head is arranged in the sliding cylinder in a sliding way; the end of the first limit column far away from the first limit cylinder is hinged with the top supporting plate; and a first buffer piece propped against the end head of the first limiting column is arranged in the first limiting cylinder.

As a further improvement of the utility model, the first buffer piece comprises a first buffer spring and a first telescopic rod penetrating through the first buffer spring; the first telescopic rod is arranged in the first limiting cylinder, one end of the first telescopic rod is connected with the end, far away from the first limiting column, of the first limiting cylinder, and the other end of the first telescopic rod is connected with the first limiting column; one end of the first limiting column, which is positioned in the first limiting cylinder, is provided with a first baffle; two ends of the first buffer spring are respectively propped against one end, close to the first sliding head, of the first baffle plate and the first limiting cylinder; the outer diameter of the first sliding head is larger than that of the first limiting cylinder.

As a further improvement of the utility model, a sliding cavity is arranged in the sliding cylinder, and a sliding hole communicated with the sliding cavity is arranged on the sliding cylinder; the inner diameter of the sliding cavity is larger than the outer diameter of the first sliding head; the inner diameter of the sliding hole is larger than the outer diameter of the first limiting cylinder.

As a further improvement of the utility model, an internal shock absorbing assembly is also included; the inner damping component comprises a third damping piece arranged in the first cavity, and a second cavity is arranged in the third damping piece; the first damping piece is movably arranged in the second cavity, so that the first damping piece and the third damping piece have the freedom degree of mutual displacement.

As a further improvement of the utility model, the third shock absorbing member includes a third shock absorbing cylinder; the inside cavity of third shock-absorbing cylinder forms the second cavity, and the outer wall of third shock-absorbing cylinder pastes with the inner wall of second shock-absorbing cylinder and sets up in the second shock-absorbing cylinder mutually, and the inner wall of third shock-absorbing cylinder pastes with the outer wall of first support column mutually.

The beneficial effects of the utility model are as follows:

make top backup pad and bottom sprag connect through first damping member, second damping member connection to form wholly under outside damping member's connection, first damping member, second damping member and outside damping member can cushion, cushion the effort that bears on the bridge, have the degree of freedom of mutual displacement between first damping member and the second damping member simultaneously, and have the degree of freedom of mutual displacement between locating part and the bottom sprag, thereby can cushion, cushion the effort of the different directions that the bridge received.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a bridge damper according to the present utility model;

FIG. 2 is a schematic view of another overall structure of a bridge damper according to the present utility model;

FIG. 3 is a schematic view showing a connection structure between a top support plate and a first support column of a bridge damper according to the present utility model;

FIG. 4 is a schematic diagram showing a connection structure between a bottom support plate and a second damper cylinder of a bridge damper according to the present utility model;

FIG. 5 is a schematic view of the inner structure of a second damper cylinder of the bridge damper according to the present utility model;

FIG. 6 is a schematic view of the internal structure of a third damper cylinder of the bridge damper according to the present utility model;

FIG. 7 is an enlarged schematic view of the bridge damper of FIG. 2 according to the present utility model;

reference numerals illustrate:

1. a top support plate; 101. a first connection post; 1011. a second connection hole; 102. a connecting frame; 2. a bottom support plate; 201. a first connection hole; 3. a central shock absorbing assembly; 301. a first support column; 302. a first damper spring; 303. a limiting plate; 304. a second damper cylinder; 3041. a first cavity; 3042. a baffle ring; 3043. a through hole; 3044. a first slip space; 4. an outer shock absorbing assembly; 401. a first limiting cylinder; 402. a first limit post; 4021. a first baffle; 403. a first slip head; 404. a first telescopic rod; 405. a first buffer spring; 5. a shock pad; 501. a metal cushion layer; 6. a slipping cylinder; 601. a slip hole; 7. a third shock absorbing member; 701. a second cavity;

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the described embodiments are merely some, but not all embodiments of the present utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In one embodiment, referring to FIG. 1, a bridge damper of the present utility model includes a top support plate 1, a bottom support plate 2, a center damper component 3, an inner damper component, and an outer damper component 4.

Referring to fig. 2, a first connecting piece is arranged on the top supporting plate 1, and a second connecting piece and a sliding cylinder 6 are arranged on the bottom supporting plate 2; the central damping component 3 comprises a first damping piece arranged on the top supporting plate 1 and a second damping piece arranged on the bottom supporting plate 2, a first cavity 3041 is arranged in the second damping piece, one end of the first damping piece, which is far away from the top supporting plate 1, is in sliding connection with the bottom supporting plate 2, and one end of the second damping piece, which is far away from the bottom supporting plate 2, is in sliding connection with the top supporting plate 1; the inner damping component comprises a third damping member 7 arranged in the first cavity 3041, and a second cavity 701 is arranged in the third damping member 7; the first shock absorbing member is movably arranged in the second cavity 701, so that the first shock absorbing member, the second shock absorbing member and the third shock absorbing member 7 have the freedom degree of mutual displacement; the third shock absorbing member 7 slows down the displacement speed between the first shock absorbing member and the second shock absorbing member when the first shock absorbing member and the second shock absorbing member are displaced mutually; the outer side damping component 4 comprises limiting pieces which are symmetrically arranged between the top supporting plate 1 and the bottom supporting plate 2 in the circumferential direction, one end of each limiting piece is hinged with the top supporting plate 1, and the other end of each limiting piece is in sliding connection with the sliding cylinder 6, so that the limiting pieces and the bottom supporting plate 2 have the freedom degree of mutual displacement.

Further, referring to fig. 3, the first connection member is a first connection post 101 symmetrically provided on the top support plate 1, and the second connection member is a first connection hole 201 provided on the bottom support plate 2.

Preferably, four sets of second connection holes 1011 are symmetrically provided on the top support plate 1, and the first connection column 101 is disposed in the second connection holes 1011 by being screw-coupled with a nut.

Further, referring to fig. 4 and 5, the second shock absorbing member includes a second shock absorbing cylinder 304, a shock absorbing pad 5 disposed around the second shock absorbing cylinder 304 and wrapping the second shock absorbing cylinder 304, the second shock absorbing cylinder 304 has a height lower than that of the shock absorbing pad 5, a first cavity 3041 is formed in the second shock absorbing cylinder 304, a baffle ring 3042 is disposed in the first cavity 3041, a through hole 3043 is disposed in the center of the baffle ring 3042, and a first sliding space 3044 is formed between the baffle ring 3042 and one end of the second shock absorbing cylinder 304 adjacent to the bottom support plate 2; one end of the shock pad 5 is fixedly arranged on the bottom supporting plate 2, and the other end is in contact connection with the top supporting plate 1.

Preferably, the shock pad 5 is made of rubber, and a metal cushion layer 501 is arranged in the shock pad 5 at intervals.

Further, referring to fig. 3, the first shock absorbing member includes a first support column 301 fixedly connected to the top support plate 1, a first shock absorbing spring 302 sleeved on the first support column 301, and a limiting plate 303 detachably disposed on an end of the first support column 301 far away from the top support plate 1, where an end of the first support column 301 far away from the top support plate 1 passes through a through hole 3043 and is located in a first sliding space 3044 to be connected with the limiting plate 303; both ends of the first damper spring 302 are in contact connection with the top support plate 1 and the retainer ring 3042, respectively.

Preferably, the inner diameter of the through hole 3043 is larger than the outer diameter of the first support column 301, the outer diameter of the limiting plate 303 is larger than the inner diameter of the through hole 3043, and a space exists between the bottom and the edge of the limiting plate 303 and the inner wall of the first sliding space 3044; the limiting plate 303 is provided with a first connecting sleeve, and the first connecting sleeve is connected with the first supporting column 301 through threads.

Preferably, the first support columns 301 and the metal cushion layer 501 are made of lead.

Further, referring to fig. 6, the third damper 7 includes a third damper cylinder, a second cavity 701 is formed in the third damper cylinder, an outer wall of the third damper cylinder is disposed in the second damper cylinder 304 and is attached to an inner wall of the second damper cylinder 304, and an inner wall of the third damper cylinder is attached to an outer wall of the first support column 301.

Preferably, the third damper cylinder is made of rubber material.

Further, referring to fig. 7, the limiting member includes a first limiting cylinder 401, a first limiting post 402 slidably disposed in the first limiting cylinder 401, and a first sliding head 403 disposed in the first limiting cylinder 401 and far away from the end of the first limiting post 402, where the first sliding head 403 is slidably disposed in the sliding cylinder 6, and the end of the first limiting post 402 far away from the first limiting cylinder 401 is hinged to the top support plate 1, and a first buffer member propped against the end of the first limiting post 402 is disposed in the first limiting cylinder 401.

Preferably, the first buffer member comprises a first buffer spring 405 and a first telescopic rod 404 penetrating through the first buffer spring 405, wherein the first telescopic rod 404 is arranged in the first limiting cylinder 401, one end of the first telescopic rod 404 is connected with the end, far away from the first limiting column 402, of the first limiting cylinder 401, and the other end of the first telescopic rod 404 is connected with the first limiting column 402; a first baffle 4021 is arranged at one end of the first limiting column 402, which is positioned in the first limiting cylinder 401, and two ends of the first buffer spring 405 respectively prop against the first baffle 4021 and one end, close to the first sliding head 403, of the first limiting cylinder 401; the outer diameter of the first slipping head 403 is larger than the outer diameter of the first limiting cylinder 401.

Preferably, the top support plate 1 is provided with a U-shaped connecting frame 102, and the first limiting post 402 is hinged to the connecting frame 102 through a first rotating shaft.

Of course, the first buffer member may be a mature viscous damper, and a first sliding head 403 matched with the sliding cylinder 6 is disposed at one end of the viscous damper, and the other end of the viscous damper is hinged to the top support plate 1, and the connection form of the first buffer member and the first limiting column 402 is the same as the connection form of the top support plate 1.

Preferably, the first slider 403 is spherical.

Further, referring to fig. 2, four sets of limiting members are provided, and the limiting members are arranged at an angle of 45 ° relative to the bottom plate support plate; the four groups of limiting pieces are symmetrically arranged on the front side, the rear side, the left side and the right side of the top supporting plate 1 respectively.

Further, a sliding cavity is formed in the sliding cylinder 6, a sliding hole 601 communicated with the sliding cavity is formed in the sliding cylinder 6, the inner diameter of the sliding cavity is larger than the outer diameter of the first sliding head 403, and the inner diameter of the sliding hole 601 is larger than the outer diameter of the first limiting cylinder 401.

Preferably, the axis of the sliding cylinder 6 is disposed on the bottom support plate 2 at an angle of 45 ° with respect to the bottom support plate 2, and the inner diameter of the sliding cavity is larger than the inner diameter of the sliding hole 601.

In this embodiment, the bottom supporting plate 2 is connected to the bridge pier through the first connecting hole 201, the top supporting plate 1 is connected to the bridge through the first connecting post 101, when the bridge receives downward force, the force is transferred from the top supporting plate 1 to the first supporting post 301, the shock pad 5 and the limiting member, the first shock absorbing spring 302 and the shock pad 5 sleeved on the first supporting post 301 buffer the force, meanwhile, the first limiting post 402 on the limiting member moves towards the first limiting cylinder 401, the first buffer spring 405 also buffers the force, when the first limiting post 402 moves towards the first limiting cylinder 401, the first limiting post 402 rotates relative to the first rotating shaft, the first sliding head 403 displaces in the sliding cavity, and the force received on the top supporting plate 1 is buffered under the cooperation of the three;

when the top supporting plate 1 receives forces from different directions of the bridge, such as transverse forces, the top supporting plate 1 can have a certain displacement space relative to the bottom supporting plate, and when the top supporting plate 1 is displaced, the first supporting column 301 moves in the second cavity, the third damping cylinder provides resistance to the displacement of the first supporting column 301 and buffers the transverse force, the first sliding head 403 on the limiting piece moves in the sliding cylinder 6 along with the transverse force, and the first limiting cylinder 401, the first limiting column 402 and the first buffering piece buffer the transverse force at the same time; and the second damper cylinder 304 limits the displacement space of the first support column 301, the sliding cylinder 6 limits the position space of the first sliding head 403, and the two limiting actions cooperate with the buffering action to buffer the transverse force applied to the bridge.

The first support column 301 can move up and down in the second damping cylinder 304 and also can move circumferentially, the moving mode of the limiting piece in the limiting cylinder also comprises up-down movement and circumferential movement, the second damping cylinder 304 limits the position space of the first support column 301, the limiting cylinder limits the position space of the limiting piece, and under the combined action of the central damping component 3 and the outer damping components 4, acting forces in different directions born by a bridge can be buffered and damped.

In practical application of the bridge, the acting force applied to the bridge is not usually force in a single direction, and in this embodiment, the acting forces in different directions applied to the bridge are buffered by the mutual combination of the components in the top support plate 1, the bottom support plate 2, the central damping component 3, the inner damping component and the outer damping component 4, so as to damp the vibration applied to the bridge.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. A bridge damper, comprising:

a top support plate (1) having a first connection; a bottom support plate (2) provided with a second connecting piece and a sliding cylinder (6);

a central damping component (3) comprising a first damping element arranged on the top support plate (1) and a second damping element arranged on the bottom support plate (2); a first cavity (3041) is arranged in the second shock absorption piece; one end of the first shock absorbing piece, which is far away from the top supporting plate (1), is in sliding connection with the bottom supporting plate (2); one end of the second shock absorbing piece, which is far away from the bottom supporting plate (2), is in sliding connection with the top supporting plate (1); the first shock absorbing member is movably arranged in the first cavity (3041) so that the first shock absorbing member and the second shock absorbing member have the freedom degree of mutual displacement;

the outer side damping component (4) comprises limiting pieces which are symmetrically arranged between the top supporting plate (1) and the bottom supporting plate (2) in the circumferential direction; one end of the limiting piece is hinged with the top supporting plate (1), and the other end of the limiting piece is in sliding connection with the sliding cylinder (6), so that the limiting piece and the bottom supporting plate (2) have the freedom degree of mutual displacement.

2. The bridge vibration damper according to claim 1, wherein: the second shock absorbing piece comprises a second shock absorbing cylinder (304) and a shock absorbing pad (5) which is arranged around the second shock absorbing cylinder (304) and wraps the second shock absorbing cylinder (304); the height of the second shock absorption cylinder (304) is lower than that of the shock absorption pad (5), and a first cavity (3041) is formed in the second shock absorption cylinder (304) in a hollow mode; a baffle ring (3042) is arranged in the first cavity (3041); a through hole (3043) is formed in the center of the baffle ring (3042), and a first sliding space (3044) is formed between the baffle ring (3042) and one end, close to the bottom supporting plate (2), of the second shock absorption cylinder (304); one end of the shock pad (5) is fixedly arranged on the bottom supporting plate (2), and the other end of the shock pad is in contact connection with the top supporting plate (1).

3. The bridge vibration damper according to claim 2, wherein: the first damping piece comprises a first support column (301) fixedly connected with the top support plate (1), a first damping spring (302) sleeved on the first support column (301), and a limiting plate (303) detachably arranged on the end, far away from the top support plate (1), of the first support column (301); one end, far away from the top supporting plate (1), of the first supporting column (301) penetrates through the through hole (3043) and is located in the first sliding space (3044) to be connected with the limiting plate (303); two ends of the first damping spring (302) are respectively in contact connection with the top supporting plate (1) and the baffle ring (3042).

4. A bridge vibration damper according to claim 3, wherein: the limiting piece comprises a first limiting cylinder (401), a first limiting column (402) arranged in the first limiting cylinder (401) in a sliding manner, and a first sliding head (403) arranged at the end of the first limiting cylinder (401) far away from the first limiting column (402); the first sliding head (403) is arranged in the sliding cylinder (6) in a sliding way; the end of the first limit column (402) far away from the first limit cylinder (401) is hinged with the top support plate (1); a first buffer piece propped against the end head of the first limiting column (402) is arranged in the first limiting cylinder (401).

5. The bridge vibration damper according to claim 4, wherein: the first buffer piece comprises a first buffer spring (405) and a first telescopic rod (404) penetrating through the first buffer spring (405); the first telescopic rod (404) is arranged in the first limiting cylinder (401), one end of the first telescopic rod (404) is connected with the end, far away from the first limiting column (402), of the first limiting cylinder (401), and the other end of the first telescopic rod is connected with the first limiting column (402); one end of the first limiting column (402) positioned in the first limiting cylinder (401) is provided with a first baffle (4021); two ends of the first buffer spring (405) are respectively abutted against one end, close to the first sliding head (403), of the first baffle (4021) and one end, close to the first sliding head (403), of the first limiting cylinder (401); the outer diameter of the first sliding head (403) is larger than that of the first limiting cylinder (401).

6. The bridge vibration damper according to claim 5, wherein: a sliding cavity is formed in the sliding cylinder (6), and a sliding hole (601) communicated with the sliding cavity is formed in the sliding cylinder (6); the inner diameter of the sliding cavity is larger than the outer diameter of the first sliding head (403); the inner diameter of the sliding hole (601) is larger than the outer diameter of the first limit cylinder (401).

7. The bridge vibration damper according to claim 1, wherein: also comprises an internal shock absorbing assembly; the inner damping component comprises a third damping piece (7) arranged in the first cavity (3041), and a second cavity (701) is arranged in the third damping piece (7); the first shock absorbing member is movably arranged in the second cavity (701) so that the first shock absorbing member and the third shock absorbing member (7) have the freedom degree of mutual displacement.

8. The bridge vibration damper according to claim 7, wherein: the third shock absorber (7) comprises a third shock absorber cylinder; the inside cavity of third shock-absorbing cylinder forms second cavity (701), and the outer wall of third shock-absorbing cylinder pastes with the inner wall of second shock-absorbing cylinder (304) and sets up in second shock-absorbing cylinder (304), and the inner wall of third shock-absorbing cylinder pastes with the outer wall of first support column (301).

Images