CN213653177U

CN213653177U - Bridge structure damping damper

Info

Publication number: CN213653177U
Application number: CN202021854464.6U
Authority: CN
Inventors: 张珂; 彭强
Original assignee: Guangzhou Hengding Construction Engineering Co ltd
Current assignee: Guangzhou Hengding Construction Engineering Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-07-09
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a bridge structures damping attenuator, it include with pier fixed connection's bottom plate and with bridge plate fixed connection's backup pad, fixedly connected with rubber slab between bottom plate and the backup pad, wear to be equipped with the connecting rod between bottom plate and the backup pad, all open on pier and the bridge plate and supply connecting rod male recess, the bottom plate passes through the recess with the backup pad to be pegged graft with the connecting rod, be equipped with the buffering subassembly between the tank bottom of connecting rod and recess, between bottom plate and the pier, all be connected through the fastener between backup pad and the bridge plate. This application has and reduces horizontal displacement between bridge plate and pier to make the difficult bending deformation that takes place of shock attenuation attenuator, thereby make the shock attenuation attenuator keep good cushioning effect's effect for a long time.

Description

Bridge structure damping damper

Technical Field

The application relates to the technical field of shock absorption dampers, in particular to a shock absorption damper for a bridge structure.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass.

The bridge generally consists of an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure, generally referred to as a bridge deck, and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like.

In the process that the automobile runs on the bridge, the automobile applies downward pressure to the bridge plate, and the bridge plate generates elastic momentum after deformation, so that the bridge plate vibrates. Therefore, when designing a bridge, in order to improve the damping performance of the bridge, a damping damper is generally installed between the bridge slab and the bridge pier, and when the bridge slab vibrates, the damping damper performs a buffering function on the bridge slab to weaken the vibration of the bridge slab, so that the service life of the bridge is prolonged.

The existing damping damper for bridge damping comprises a rubber damping support, a viscous damper and the like, wherein the rubber damping support generally comprises a bottom plate fixedly connected to a pier and a supporting plate fixedly connected to a bridge plate, a rubber plate is arranged between the bottom plate and the supporting plate, and when the bridge plate vibrates, the rubber plate plays a damping role on the bridge plate.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the bridge plate shakes, relative displacement may occur between the bridge plate and the bridge pier in the horizontal direction, so that the rubber plate is subjected to bending deformation, the damping effect of the rubber plate on the bridge plate is affected, and the service life of the rubber damping support is easily shortened.

SUMMERY OF THE UTILITY MODEL

In order to reduce the relative displacement of rubber slab and bridge plate on the horizontal direction, this application provides a bridge structures damping ware.

The application provides a bridge structures damping attenuator adopts following technical scheme:

the utility model provides a bridge structures damping attenuator, include with pier fixed connection's bottom plate and with bridge plate fixed connection's backup pad, the bottom plate with fixedly connected with rubber slab between the backup pad, the bottom plate with wear to be equipped with the connecting rod between the backup pad, the pier with all open the confession on the bridge plate connecting rod male recess, the bottom plate with the backup pad passes through the recess with the connecting rod is pegged graft, the connecting rod with be equipped with buffer assembly between the tank bottom of recess, the bottom plate with between the pier the backup pad with all connect through the fastener between the bridge plate.

By adopting the technical scheme, when an automobile runs on the bridge plate, the bridge plate is impacted by the automobile to generate vibration, the bridge plate extrudes the rubber plate in the vibration process, the rubber plate applies a reaction force to the bridge plate to attenuate the vibration of the bridge plate in the vertical direction, when the bridge plate has a tendency of moving in the horizontal direction relative to the rubber plate, the connecting rods penetrate through the bottom plate and the supporting plate, the bridge pier and the bridge plate are both provided with grooves for the insertion of the connecting rods, the bottom plate is fixedly connected with the bridge pier, the supporting plate is fixedly connected with the bridge plate through fasteners, the rigid connecting rods block the movement of the bridge plate in the horizontal direction to resist overlarge horizontal displacement between the bridge plate and the bridge pier, so that the bridge plate is not easy to generate displacement in the horizontal direction, the rubber plate is not easy to generate bending deformation, and the rubber plate keeps good damping effect; simultaneously through being equipped with the buffering subassembly between the tank bottom at connecting rod and recess, the buffering subassembly separates connecting rod and recess tank bottom to make the bridge plate at the in-process of extrusion rubber slab, the connecting rod is difficult for with the bridge plate butt, so that the bridge plate can continue to the direction motion of being close to the bottom plate, buffering subassembly cooperation rubber slab plays the attenuation effect to the vibrations of the vertical direction of bridge plate simultaneously, thereby prolongs the life of bridge plate.

Preferably, the buffer assembly comprises an elastic member, and the elastic member is located between the connecting rod and the groove bottom of the groove.

By adopting the technical scheme, when the bridge plate vibrates, the support plate slides up and down along the length direction of the connecting rod under the driving of the bridge plate, so that the connecting rod can be abutted against the groove bottom of the groove, the rubber plate loses the damping effect on the bridge plate, and the elastic part is arranged between the connecting rod and the groove bottom of the groove and separates the groove bottom of the groove of the connecting rod, so that the connecting rod is not easily abutted against the groove bottom of the groove; simultaneously, the elastic piece is in the process of being extruded by the bridge plate, and the elastic piece exerts a reaction force to the bridge plate, and the elastic piece plays the cushioning effect to the bridge plate, and the cooperation rubber slab plays the damping effect to the vibrations of the vertical direction of bridge plate together to the life of extension bridge.

Preferably, the elastic member includes a telescopic spring.

Through adopting above-mentioned technical scheme, because of the expanding spring has better flexible performance, consequently be equipped with expanding spring between the tank bottom of connecting rod and recess, can be better convert kinetic energy into elastic potential energy to the vibrations of the vertical direction of bridge plate are better alleviated.

Preferably, the open end of the groove is convexly provided with a limit ring towards the axis direction, the outer peripheral surface of one end of the connecting rod inserted into the groove is convexly provided with an anti-falling block, and the outer diameter of the anti-falling block is larger than the inner diameter of the limit ring.

Through adopting above-mentioned technical scheme, when the bridge plate takes place to shake, the length direction of connecting pipe along the recess slides to make the connecting pipe probably break away from the recess, consequently, through the open end at the recess to the protruding spacing ring that is equipped with of its axis direction, the outer peripheral face of the one end that the connecting rod inserted the recess is equipped with the anticreep piece, and the external diameter of anticreep piece is greater than the internal diameter of spacing ring, and when the connecting pipe slides, the spacing ring plays limiting displacement to the connecting rod, so that the connecting rod breaks away from the recess.

Preferably, the fastener includes that part is pre-buried in the pier with two sets of bolts in the bridge plate, one of them is organized the bolt is kept away from pier one end is worn out the pier and is run through the bottom plate, another group the bolt is kept away from the one end of bridge plate pierces through the bridge plate and runs through the backup pad, two sets of the bolt is worn out respectively the backup pad the equal threaded connection in one end of bottom plate has the nut that compresses tightly the backup pad, the bottom plate.

Through adopting above-mentioned technical scheme, compress tightly in the pier because of the bottom plate passes through bolt and nut, the backup pad compresses tightly in the bridge plate through bolt and nut to when making the bridge plate vibrations, the damping damper is difficult to separate with bridge plate, pier, with the stability of guaranteeing damping damper and pier connection.

Preferably, two sets of the bolts are located the pier, the one end in the bridge plate is all buckled and set up, every group the bolt is all symmetrically distributed in the both sides of rubber slab.

Through adopting above-mentioned technical scheme, when the bridge plate has the trend of following the horizontal direction motion, bolt cooperation connecting rod supports the bridge plate, nevertheless because the diameter of bolt is generally less, for the ability of shearing of reinforcing bolt, lies in the crooked setting of one end of bridge plate, pier with the bolt, in the horizontal direction, the area of contact increase of bolt and bridge plate, pier to make the ability reinforcing of shearing of bolt, so that the difficult displacement that takes place the horizontal direction of bridge plate.

Preferably, the two groups of bolts penetrate through the bottom plate and one end of the supporting plate are sleeved with elastic washers, and the elastic washers are respectively located between the nut and the bottom plate and between the nuts and the supporting plate.

Through adopting above-mentioned technical scheme, through be equipped with the elastic washer between nut and bottom plate, backup pad, the nut is through extrusion elastic washer in order to lock the bottom plate on the pier, with backup pad locking on the bridge plate to when making the bridge plate vibrations, the nut is difficult not hard up.

Preferably, the peripheries of the plurality of rubber plates are commonly surrounded by separation pipes, and the separation pipes are telescopic pipes.

By adopting the technical scheme, the rubber plate is greatly influenced by the environment, and if the rubber plate is exposed in the air for a long time, the aging speed of the rubber plate can be accelerated, so that the elasticity of the rubber plate is weakened; meanwhile, the separation pipe is a telescopic pipe, and the separation pipe does not influence the telescopic performance of the rubber plate while protecting the rubber plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connecting rods penetrate through the bottom plate and the supporting plate, the bridge piers and the bridge plates are provided with grooves for the insertion of the connecting rods, and when the bridge plates have a tendency of moving in the horizontal direction relative to the rubber plates, the connecting rods block the horizontal movement of the bridge plates, so that the bridge plates are not easy to displace in the horizontal direction, and the rubber plates are not easy to bend and deform; meanwhile, the buffer assembly separates the connecting rod from the bottom of the groove so that the connecting rod does not hinder the bridge plate from moving towards the direction close to the bottom plate in the process of extruding the rubber plate by the bridge plate, and simultaneously the buffer assembly plays a role in attenuating the vibration of the bridge plate in the vertical direction by matching with the rubber plate so as to prolong the service life of the bridge plate;

2. the separating pipe is arranged on the periphery of the rubber plate and plays a role in protecting the rubber plate so as to reduce the influence of the environment on the rubber plate and prolong the service life of the rubber plate; meanwhile, the separating pipe is a telescopic pipe, and the separating pipe does not influence the telescopic performance of the rubber plate while protecting the rubber plate;

3. through the protruding spacing ring that is equipped with of open end at the recess to its axis direction, the outer peripheral face of the one end that the connecting rod inserted the recess is equipped with the anticreep piece, and the external diameter of anticreep piece is greater than the internal diameter of spacing ring, and when the connecting pipe slides, the spacing ring plays limiting displacement to the connecting rod to make the connecting rod be difficult for breaking away from the recess.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic diagram of the internal structure of the present application;

fig. 3 is an enlarged schematic view of a in fig. 2 of the present application.

Description of reference numerals: 1. a bridge pier; 2. a base plate; 3. a bridge plate; 4. a support plate; 5. a fastener; 51. a bolt; 511. a horizontal segment; 512. a vertical section; 52. nuts, 53, elastic washers; 6. a rubber plate; 7. a connecting rod; 8. a groove; 9. a buffer assembly; 91. a tension spring; 92. a limiting ring; 93. an anti-drop block; 10. a separation tube; 101. an outer tube; 102. an inner tube.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses bridge structures damping attenuator. Referring to fig. 1, the shock absorption damper comprises a bottom plate 2 fixedly connected to the upper end surface of a pier 1 and a support plate 4 fixedly connected to the lower end surface of a bridge plate 3, the bottom plate 2 corresponds to the support plate 4 in position, and both the bottom plate 2 and the support plate 4 are made of elastic steel. Prop up bottom plate 2 and pass through fastener 5 and 1 fixed connection of pier, backup pad 4 passes through

fastener

5 and 3 fixed connection of bridge plate, a plurality of rubber slab 6 of fixedly connected with between bottom plate 2 and the bridge plate 3, and a plurality of rubber slab 6 superpose fixedly in proper order.

Referring to fig. 2 and 3, the fastener 5 includes a bolt 51 partially embedded in the pier 1 and the bridge plate 3. The bolt 51 is equipped with a plurality of, and the bolt 51 is equipped with two sets ofly in this application, and four bolts 51 are a set of, and a set of bolt 51 is used for fixed bottom plate 2, and another group of bolt 51 is used for fixed support plate 4.

The bolt 51 is bent, the bolt 51 comprises a horizontal section 511 and a vertical section 512, and one end of the horizontal section 511 is vertically fixed with one end of the vertical section 512. The horizontal section 511 of the bolt 51 is pre-buried in the pier 1 and the bridge plate 3 respectively, one end of one group of the vertical sections 512 far away from the horizontal section 511 penetrates out of the upper end surface of the pier 1 and penetrates through the bottom plate 2, and one end of the other group of the vertical sections 512 far away from the horizontal section 511 penetrates out of the lower end surface of the bridge plate 3 and penetrates through the supporting plate 4. One end of the vertical section 512 penetrating through the bottom plate 2 and the support plate 4 is connected with a nut 52 in a threaded manner, elastic washers 53 are arranged between the nut 52 and the bottom plate 2 and between the nut 52 and the support plate 4, and the bottom plate 2 and the pier 1 and the support plate 4 are locked by the nut 52 through the elastic washers 53 and the bridge plate 3 are locked by the nut 52.

A connecting rod 7 is arranged between the bottom plate 2 and the support plate 4 in a penetrating way, and the rigidity of the material for manufacturing the connecting rod 7 is larger than that of the material for manufacturing the bridge plate 3. Connecting rod 7 is perpendicular to bottom plate 2, and bottom plate 2 and backup pad 4 all with connecting rod 7 sliding connection, all open on pier 1 and the bridge plate 3 and supply connecting rod 7 male recess 8. Two connecting rods 7 are arranged, and the two connecting rods 7 are symmetrically distributed on two sides of the outer pipe 101.

Be equipped with buffering subassembly 9 in the recess 8, buffering subassembly 9 includes the elastic component, and the elastic component includes expanding spring 91, shell fragment etc. and the elastic component is expanding spring 91 in this application. The telescopic spring 91 is located between the end of the connecting rod 7 and the bottom of the groove 8, one end of the telescopic spring 91 is fixedly connected with the bottom of the groove 8, and the other end of the telescopic spring 91 is fixedly connected with the end of the connecting rod 7.

The open end of the groove 8 is convexly provided with a limit ring 92 towards the axial direction, the outer peripheral surface of one end of the connecting rod 7 inserted into the groove 8 is convexly provided with an anti-falling block 93, and the outer diameter of the anti-falling block 93 is larger than the inner diameter of the limit ring 92. The anti-slip block 93 is fixedly connected to the end of the connecting rod 7 inserted into one end of the groove 8, and the outer peripheral surface of the anti-slip block 93 is slidably connected with the groove side wall of the groove 8. When anticreep piece 93 slided in recess 8, spacing ring 92 plays limiting displacement to connecting rod 7 through anticreep piece 93 to make connecting rod 7 be difficult for breaking away from in the recess 8.

The peripheries of the plurality of rubber plates 6 are also provided with a separation pipe 10 in a surrounding manner, the separation pipe 10 comprises an outer pipe 101 and an inner pipe 102, and the plurality of rubber plates 6 are positioned in the inner pipe 102. The inner pipe 102 is fixedly connected to the bottom plate 2, the outer pipe 101 is fixedly connected to the support plate 4, and the inner pipe 102 and the outer pipe 101 are inserted and slid.

The implementation principle of the bridge structure damping damper in the embodiment of the application is as follows:

if the bridge plate 3 generates vibration in the vertical direction, the bridge plate 3 transmits force to the pier 1 through the rubber plate 6, at the moment, the rubber plate 6 is pressed, the supporting plate 4 moves towards the direction close to the bottom plate 2 along with the bridge plate 3, and the rubber plate 6 exerts a reaction force on the bridge plate 3 through the supporting plate 4 to attenuate the vibration of the bridge plate 3. The expanding spring 91 that is located the bridge plate 3 at this moment is in the tensile state, and the expanding spring 91 that is located pier 1 is in compression state, and two sets of expanding spring 91 all exert a reaction force to bridge plate 3 to the 3 temperature vibrations of cooperation 6 attenuations bridge plates of rubber slab, thereby the life of extension bridge.

When the bridge plate 3 has the trend of horizontal direction motion, wear to be equipped with connecting rod 7 because of between bottom plate 2 and the backup pad 4, all opened on pier 1 and the bridge plate 3 and supply connecting rod 7 male recess 8, and through bolt 51, nut 52 fastening connection between bottom plate 2 and pier 1, backup pad 4 and the bridge plate 3, pier 1 plays the hindrance effect through connecting rod 7 to the motion of 3 horizontal directions of bridge plate to make the difficult displacement that takes place the horizontal direction of bridge plate 3, thereby make the difficult bending deformation that takes place of rubber slab 6. Simultaneously, buckle the setting because of bolt 51, two sets of horizontal segments 511 are pre-buried respectively in bridge plate 3, in pier 1, bottom plate 2 is through a set of vertical section 512 and pier 1 fixed connection, backup pad 4 is through another group vertical section 512 and bridge plate 3 fixed connection, in the horizontal direction, bolt 51 and bridge plate 3, pier 1's area of contact increase, so that bolt 51's the ability reinforcing of shearing, bolt 51 cooperates connecting rod 7 to play the hindrance effect to the motion of 3 horizontal directions of bridge plate, further make the difficult emergence bending deformation of rubber slab 6, so that rubber slab 6 keeps good cushioning effect for a long time.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bridge structures damping attenuator, include with pier (1) fixed connection's bottom plate (2) and with bridge plate (3) fixed connection's backup pad (4), bottom plate (2) with fixedly connected with rubber slab (6), its characterized in that between backup pad (4): bottom plate (2) with wear to be equipped with connecting rod (7) between backup pad (4), pier (1) with all open the confession on bridge plate (3) connecting rod (7) male recess (8), bottom plate (2) with backup pad (4) pass through recess (8) with connecting rod (7) are pegged graft, connecting rod (7) with be equipped with between the tank bottom of recess (8) and cushion assembly (9), bottom plate (2) with between pier (1) backup pad (4) with all connect through fastener (5) between bridge plate (3).

2. The bridge structure shock absorption damper according to claim 1, wherein: the buffer assembly (9) comprises an elastic piece which is positioned between the connecting rod (7) and the groove bottom of the groove (8).

3. The bridge structure shock absorption damper according to claim 2, wherein: the elastic piece is a telescopic spring (91).

4. The bridge structure shock absorption damper according to claim 3, wherein: the opening end of the groove (8) is convexly provided with a limiting ring (92) towards the axis direction, the connecting rod (7) is inserted into the outer peripheral surface of one end of the groove (8) and is convexly provided with an anti-falling block (93), and the outer diameter of the anti-falling block (93) is larger than the inner diameter of the limiting ring (92).

5. The bridge structure shock absorption damper according to claim 1, wherein: fastener (5) including respectively partly pre-buried pier (1) with bolt (51) in bridge plate (3), with bolt (51) are connected pier (1) are kept away from pier (1) one end is worn out pier (1) and is run through bottom plate (2), with bridge plate (3) are connected bolt (51) are kept away from the one end of bridge plate (3) is penetrated bridge plate (3) and is run through backup pad (4), each bolt (51) are worn out backup pad (4) the equal threaded connection in one end of bottom plate (2) has nut (52).

6. The bridge structure shock absorption damper according to claim 5, wherein: and the two groups of bolts (51) are arranged at one ends of the bridge pier (1) and the bridge plate (3) in a bending mode.

7. The bridge structure shock absorption damper according to claim 6, wherein: two sets of bolt (51) pierce through bottom plate (2), the one end of backup pad (4) all cup joints elasticity packing ring (53), a plurality of elasticity packing ring (53) are located respectively nut (52) with bottom plate (2), backup pad (4) are between.

8. The bridge structure shock absorption damper according to claim 1, wherein: the periphery of the rubber plate (6) is provided with a separating pipe (10) in a surrounding mode, and the separating pipe (10) is a telescopic pipe.