CN215976810U

CN215976810U - Wind-resistant and earthquake-resistant damper for bridge

Info

Publication number: CN215976810U
Application number: CN202122163617.3U
Authority: CN
Inventors: 戴创新
Original assignee: Pipe Supports Ltd
Current assignee: Pipe Supports Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-08
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a wind-resistant and earthquake-resistant damper for a bridge, belongs to the technical field of bridge construction, solves the problem of poor wind-resistant and earthquake-resistant effects of the existing bridge damping structure, and has the technical key points that: be connected with the bridge body, support mound and support column, the support column is provided with first shock attenuation group with the junction of supporting the mound, the bridge body is provided with the second shock attenuation group with the junction of supporting the mound, third shock attenuation group and a plurality of viscous damper, the first shock attenuation group that sets up has realized the buffering shock attenuation that the support column is connected with the support mound, the vibrations that the bridge body produced order about piston sliding connection in the cylinder, damping medium produces damping force through the damping passageway on the piston and buffers the shock attenuation, when the middle part of bridge body produces stronger vibrations, under the effect of second shock attenuation group and third shock attenuation group, the multiple buffering shock attenuation at bridge body middle part has been realized, the anti-wind antidetonation effect is showing, has the effectual advantage of anti-wind antidetonation.

Description

Wind-resistant and earthquake-resistant damper for bridge

Technical Field

The utility model relates to the field of bridge construction, in particular to a wind-resistant and earthquake-resistant damper for a bridge.

Background

With the development of bridge construction technology in China, large-span bridges are constructed in large quantities. The bridge is a structure which enables vehicles, pedestrians and the like to smoothly pass and is erected on rivers, lakes and seas, generally comprises an upper structure, a lower structure, a support and an accessory structure, a plurality of shock absorption structures are generally arranged between a bridge body and support piers of the existing bridge, so that the shock of the bridge body is relieved when the vehicles pass, and after the shock of the bridge body is reduced, the service life of the bridge can be effectively prolonged.

The existing bridge damping structure is too single, and the wind-resistant and earthquake-resistant effect is poor, so that the service life of the bridge is greatly reduced, the safety performance is poor, and the requirement of actual use cannot be met.

Therefore, the existing bridge damping structure has the defect of poor wind-resistant and earthquake-resistant effects, and is difficult to popularize and apply.

Therefore, it is desirable to provide a wind-resistant and earthquake-resistant damper for a bridge, which aims to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the embodiment of the utility model aims to provide a wind-resistant and earthquake-resistant damper for a bridge, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a wind-resistant antidetonation attenuator of bridge, is connected with the bridge body, the bottom of bridge body is provided with a plurality of support piers of being convenient for to support, the bottom fixedly connected with support column of bridge body, support column swing joint is in supporting the mound, the junction of support column and support mound is provided with first shock attenuation group, the junction of bridge body and support mound is provided with second shock attenuation group, third shock attenuation group and a plurality of viscous damper, the one end of viscous damper articulates on the bridge body through the front ear ring respectively, the other end of viscous damper articulates on supporting the mound through the back ear ring, viscous damper includes cylinder, piston rod, dust cover and high density sealing plug, the front ear ring fixed connection is on the piston rod, the back ear ring fixed connection is on the cylinder, the piston rod passes through piston sliding connection in the cylinder, the high-density sealing plug is arranged at the inner connection part of the piston rod and the cylinder barrel, and the dustproof cover is arranged on the outer side of the piston rod.

As a further scheme of the utility model, the first damping set comprises a first slide bar, a first spring and a second spring, the first slide bar is fixedly connected inside the support pier, the support column is slidably connected to the first slide bar, the first spring and the second spring are arranged at the connection position of the support column and the support pier, and the first spring fixing ring is wound on the outer side of the first slide bar.

As a further scheme of the utility model, a supporting cross beam is arranged at the connecting part of the supporting piers and the supporting piers, the supporting cross beam is respectively and fixedly connected with the supporting piers, and reinforcing ribs are arranged at the connecting part of the supporting cross beam and the supporting piers.

As a further scheme of the present invention, the second damping set includes a first loop bar, a first sleeve and a third spring, the first loop bar is fixedly connected to the bridge body, the first sleeve is fixedly connected to the supporting beam, the first loop bar is slidably connected to the inside of the first sleeve, and the third spring is wound around the first loop bar and a fixing ring at the outer side of the first sleeve.

As a further scheme of the utility model, the third damping group comprises a first connecting rod, a second loop bar, a second sleeve and a second connecting rod, the second loop bar is slidably connected in the second sleeve, a fourth spring is arranged at the joint of the second loop bar and the second sleeve, one end of the first connecting rod is respectively hinged to the second loop bar and the second sleeve, the other end of the first connecting rod is hinged to a first movable block, the first movable block is slidably connected to the bridge body through a second sliding rod, a fifth spring is arranged on one side of the first movable block, one end of the second connecting rod is respectively hinged to the second loop bar and the second sleeve, the other end of the second connecting rod is hinged to a second movable block, the second movable block is slidably connected to the supporting cross beam through a third sliding rod, and a sixth spring is arranged on one side of the second movable block.

As a further scheme of the utility model, a plurality of shock pads are arranged at the connecting part of the bridge body and the support pier, the shock pads are respectively arranged around the outer sides of the support columns, and grooves for avoiding the shock pads are respectively arranged on the bridge body and the support pier.

In summary, compared with the prior art, the embodiment of the utility model has the following beneficial effects:

the utility model is fixedly connected with a support column through the bottom of a bridge body, the support column is movably connected in a support pier, a first damping group is arranged at the joint of the support column and the support pier, the arranged first damping group realizes the buffer damping of the connection of the support column and the support pier, in addition, a plurality of viscous dampers are respectively hinged at the outer sides of the bridge body and the support pier, a cylinder barrel, a piston rod, a dust cover and a high-density sealing plug are arranged in the viscous dampers, the vibration generated by the bridge body drives a front lug ring to drive the piston on the piston rod to be connected in the cylinder barrel in a sliding way, damping medium generates damping force through a damping channel on the piston to carry out buffer damping, the viscous dampers have compact structure, the wind-resistant strength of the bridge body is greatly improved, in addition, the high-density anti-seismic sealing plug is arranged at the joint of the piston rod and the cylinder barrel, the sealing in the cylinder barrel is realized, make viscous damper's antidetonation benefit further promote, and the outside of piston rod is provided with the dust cover, has realized the inside dustproof of viscous damper, and the middle part junction of bridge body is provided with second shock attenuation group and third shock attenuation group, when the middle part of bridge body produces stronger vibrations, under the effect of second shock attenuation group and third shock attenuation group, has realized the multiple buffering shock attenuation at bridge body middle part, and anti-wind antidetonation effect is showing, possesses the effectual advantage of anti-wind antidetonation.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic sectional structure diagram of an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a viscous damper according to an embodiment of the present invention.

Reference numerals: 1. a bridge body; 2. supporting piers; 3. a support pillar; 4. a shock pad; 5. a first slide bar; 6. a first spring; 7. a second spring; 8. a viscous damper; 9. a first loop bar; 10. a first sleeve; 11. a third spring; 12. a second loop bar; 13. a second sleeve; 14. a fourth spring; 15. a first link; 16. a first moving block; 17. a second slide bar; 18. a fifth spring; 19. a second link; 20. a second moving block; 21. a third slide bar; 22. a sixth spring; 23. an anterior earring; 24. a posterior earring; 25. a cylinder barrel; 26. a piston; 27. a piston rod; 28. a dust cover; 29. a high density sealing plug; 30. and supporting the cross beam.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Example 1

Referring to fig. 1 to 3, a bridge wind-resistant and earthquake-resistant damper is connected with a bridge body 1, a plurality of supporting piers 2 convenient to support are arranged at the bottom of the bridge body 1, supporting columns 3 are fixedly connected at the bottom of the bridge body 1, the supporting columns 3 are movably connected in the supporting piers 2, a first damping set is arranged at the joints of the supporting columns 3 and the supporting piers 2, a plurality of viscous dampers 8 are arranged at the joints of the bridge body 1 and the supporting piers 2, one ends of the viscous dampers 8 are respectively hinged on the bridge body 1 through front ear rings 23, the other ends of the viscous dampers 8 are hinged on the supporting piers 2 through rear ear rings 24, each viscous damper 8 comprises a cylinder 25, a piston 26, a piston rod 27, a dust cover 28 and a high density 29, the front ear rings 23 are fixedly connected on the piston rod 27, the rear ear rings 24 are fixedly connected on the cylinder 25, the piston rod 27 is slidably connected in the cylinder 25 through the piston 26, a high-density sealing plug 29 is arranged at the connection part of the piston rod 27 and the cylinder 25, and a dust cover 28 is arranged on the outer side of the piston rod 27.

Further, first shock attenuation group includes first slide bar 5, first spring 6 and second spring 7, first slide bar 5 fixed connection is in the inside of supporting pier 2, support column 3 sliding connection is on first slide bar 5, support column 3 and the internal connection department of supporting pier 2 are provided with first spring 6 and second spring 7, first spring 6 fixed ring is in the outside of first slide bar 5.

Further, the junction of bridge body 1 and support mound 2 is provided with a plurality of shock pad 4, shock pad 4 surrounds the outside setting in support column 3 respectively, offer the recess that is used for keeping away a shock pad 4 on bridge body 1 and the support mound 2 respectively.

Preferably, it is fixed to be provided with a plurality of support column 3 through being pegged graft on supporting pier 2 on bridge body 1 and install, and bridge body 1 is provided with a plurality of shock pad 4 with the junction of supporting pier 2 and carries out the antidetonation buffering, and support column 3 through 5 sliding connection of first slide bar in supporting pier 2, when taking place vibrations, support column 3 compresses first spring 6 and second spring 7 respectively and cushions the shock attenuation, has realized the antidetonation to bridge body 1.

Preferably, the front earrings 23 are driven by the vibration generated by the bridge body 1 to drive the piston 26 on the piston rod 27 to be slidably connected into the cylinder 25, damping medium generates damping force through the damping channels on the piston 26 to perform buffering and shock absorption, and the viscous damper 8 is compact in structure, so that the wind-resistant and shock-resistant strength of the bridge body 1 is greatly improved.

Preferably, a high-density sealing plug 29 is arranged at the joint of the piston rod 27 and the cylinder 25, so that the inside of the cylinder 25 is sealed, the anti-seismic benefit of the viscous damper 8 is further improved, and the dust cover 28 is arranged on the outer side of the piston rod 27, so that the dust prevention inside the viscous damper 8 is realized.

Example 2

Referring to fig. 1 and 2, a wind-resistant and earthquake-resistant damper for a bridge is connected to a bridge body 1, a plurality of support piers 2 convenient to support are arranged at the bottom of the bridge body 1, and a second damping set and a third damping set are arranged at the connection position of the bridge body 1 and the support piers 2.

Further, the supporting beam 30 is arranged at the joint of the supporting pier 2 and the supporting pier 2, the supporting beam 30 is fixedly connected with the supporting pier 2 respectively, and reinforcing ribs are arranged at the joint of the supporting beam 30 and the supporting pier 2.

Further, the second shock attenuation group includes first sleeve 9, first sleeve 10 and third spring 11, first sleeve 9 fixed connection is on bridge body 1, first sleeve 10 fixed connection is on supporting beam 30, first sleeve 9 sliding connection is in first sleeve 10, the solid fixed ring in the outside of first sleeve 9 and first sleeve 10 has around third spring 11.

Further, the third damping group comprises a first connecting rod 15, a second sleeve 12, a second sleeve 13 and a second connecting rod 19, the second sleeve rod 12 is slidably connected in a second sleeve 13, a fourth spring 14 is arranged at the joint of the second sleeve rod 12 and the second sleeve 13, one end of the first link 15 is hinged to the second lever 12 and the second sleeve 13 respectively, the other end of the first connecting rod 15 is hinged with a first moving block 16, the first moving block 16 is connected to the bridge body 1 in a sliding manner through a second sliding rod 17, one side of the first moving block 16 is provided with a fifth spring 18, one end of the second connecting rod 19 is respectively hinged on the second sleeve rod 12 and the second sleeve 13, the other end of the second connecting rod 19 is hinged to a second moving block 20, the second moving block 20 is slidably connected to a supporting beam 30 through a third sliding rod 21, and a sixth spring 22 is arranged on one side of the second moving block 20.

Preferably, the joint of two adjacent support piers 2 is provided with a support beam 30 to realize the reinforcement of the connection of the support piers 2.

Preferably, when the middle part of the bridge body 1 generates strong vibration, the bridge body 1 drives the first loop bars 9 to be slidably connected in the first sleeves 10 respectively, so that the compression of the bridge body 1 on the third springs 11 is realized, and the shock absorption of the bridge body 1 is realized.

Preferably, the vibration in the middle of the bridge body 1 drives the included angle between the first connecting rod 15 and the second connecting rod 19 to change, so that the first moving block 16 compresses the fifth spring 18 to be slidably connected to the second sliding rod 17 for damping, and the second moving block 20 compresses the sixth spring 22 to be slidably connected to the third sliding rod 21 for damping.

Preferably, the second loop bar 12, which is hinged to the first connecting bar 15 and the second connecting bar 19 respectively, compresses the fourth spring 14 to be connected in the second sleeve 13 in a sliding manner, so that multiple damping benefits in the middle of the bridge body 1 are realized, and the wind-resistant and earthquake-resistant effects are remarkable.

The rest of the structure of the embodiment is the same as the bridge body 1 of the embodiment.

The working principle of the utility model is as follows: a plurality of supporting columns 3 are arranged on a bridge body 1 and inserted into a supporting pier 2 for installation and fixation, a plurality of shock absorption pads 4 are arranged at the joint of the bridge body 1 and the supporting pier 2 for shock absorption, the supporting columns 3 are connected into the supporting pier 2 in a sliding manner through first sliding rods 5, when shock occurs, the supporting columns 3 respectively compress first springs 6 and second springs 7 for shock absorption, shock resistance of the bridge body 1 is realized, in addition, the shock generated by the bridge body 1 drives a front lug ring 23 to drive a piston 26 on a piston rod 27 to be connected into a cylinder 25 in a sliding manner, damping media generate damping force through a damping channel on the piston 26 for shock absorption, a viscous damper 8 is compact in structure, the wind resistance and shock resistance of the bridge body 1 are greatly improved, in addition, a high-density sealing plug 29 is arranged at the joint of the piston rod 27 and the cylinder 25, and sealing inside the cylinder 25 is realized, the anti-seismic benefit of the viscous damper 8 is further improved, and the dustproof cover 28 is arranged on the outer side of the piston rod 27, so that the dustproof effect inside the viscous damper 8 is realized; the supporting cross beams 30 are arranged at the joints of two adjacent supporting piers 2 to realize the connection and the reinforcement of the supporting piers 2, when strong vibration is generated in the middle of the bridge body 1, the bridge body 1 respectively drives the first loop bars 9 to be slidably connected into the first sleeve 10, so that the compression of the bridge body 1 on the third springs 11 is realized, the vibration of the bridge body 1 is reduced, in addition, the vibration of the middle of the bridge body 1 drives the included angle between the first connecting rods 15 and the second connecting rods 19 to be changed, so that the first moving block 16 is compressed by the fifth springs 18 to be slidably connected onto the second loop bars 17 for vibration reduction, the second moving block 20 is driven by the sixth springs 22 to be slidably connected onto the third loop bars 21 for buffering and vibration reduction, in addition, the second loop bars 12 respectively hinged with the first connecting rods 15 and the second connecting rods 19 are compressed by the fourth springs 14 to be slidably connected into the second sleeve 13, and multiple vibration reduction benefits of the middle of the bridge body 1 are realized, the wind-resistant and earthquake-resistant effect is remarkable.

It should be particularly noted that all the components in the present application are general standard components or components known to those skilled in the art, which effectively solve the problem that the existing bridge damping structure has poor wind and earthquake resistant effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a wind-resistant antidetonation attenuator of bridge, is connected with bridge body (1), the bottom of bridge body (1) is provided with a plurality of support piers (2) of being convenient for support, a serial communication port, bottom fixedly connected with support column (3) of bridge body (1), support column (3) swing joint is in supporting pier (2), support column (3) and the junction of supporting pier (2) are provided with first shock attenuation group, bridge body (1) and the junction of supporting pier (2) are provided with second shock attenuation group, third shock attenuation group and a plurality of viscous damper (8), the one end of viscous damper (8) articulates on bridge body (1) through preceding earrings (23) respectively, the other end of viscous damper (8) articulates on supporting pier (2) through back earrings (24), viscous damper (8) include cylinder (25), Piston (26), piston rod (27), dust cover (28) and high density sealing plug (29), preceding earrings (23) fixed connection is on piston rod (27), back earrings (24) fixed connection is on cylinder (25), piston rod (27) pass through piston (26) sliding connection in cylinder (25), the internal connection department of piston rod (27) and cylinder (25) is provided with high density sealing plug (29), the outside of piston rod (27) is provided with dust cover (28).

2. The wind-resistant and earthquake-resistant damper for bridge according to claim 1, wherein the first damping set comprises a first slide bar (5), a first spring (6) and a second spring (7), the first slide bar (5) is fixedly connected to the inside of the support pier (2), the support pillar (3) is slidably connected to the first slide bar (5), the first spring (6) and the second spring (7) are arranged at the inner connection position of the support pillar (3) and the support pier (2), and the first spring (6) is fixedly wound around the outside of the first slide bar (5).

3. The wind-resistant and earthquake-resistant damper for the bridge according to claim 1, wherein a supporting beam (30) is arranged at the joint of the supporting pier (2) and the supporting pier (2), the supporting beam (30) is respectively and fixedly connected with the supporting pier (2), and a reinforcing rib is arranged at the joint of the supporting beam (30) and the supporting pier (2).

4. The bridge wind-resistant and earthquake-resistant damper according to claim 2, wherein the second damping set comprises a first loop bar (9), a first sleeve (10) and a third spring (11), the first loop bar (9) is fixedly connected to the bridge body (1), the first sleeve (10) is fixedly connected to the supporting beam (30), the first loop bar (9) is slidably connected to the first sleeve (10), and the third spring (11) is fixedly surrounded on the outer sides of the first loop bar (9) and the first sleeve (10).

5. The bridge wind-resistant and earthquake-resistant damper according to claim 4, wherein the third damping set comprises a first connecting rod (15), a second loop bar (12), a second sleeve (13) and a second connecting rod (19), the second loop bar (12) is slidably connected in the second sleeve (13), a fourth spring (14) is arranged at the joint of the second loop bar (12) and the second sleeve (13), one end of the first connecting rod (15) is respectively hinged on the second loop bar (12) and the second sleeve (13), the other end of the first connecting rod (15) is hinged on a first movable block (16), the first movable block (16) is slidably connected on the bridge body (1) through a second sliding rod (17), a fifth spring (18) is arranged at one side of the first movable block (16), one end of the second connecting rod (19) is respectively hinged on the second loop bar (12) and the second sleeve (13), the other end of the second connecting rod (19) is hinged to a second moving block (20), the second moving block (20) is connected to the supporting cross beam (30) in a sliding mode through a third sliding rod (21), and a sixth spring (22) is arranged on one side of the second moving block (20).

6. The wind-resistant and earthquake-resistant bridge damper according to claim 1, wherein a plurality of shock absorbing pads (4) are arranged at the joint of the bridge body (1) and the support pier (2), the shock absorbing pads (4) are respectively arranged around the outer side of the support column (3), and grooves for avoiding the shock absorbing pads (4) are respectively formed in the bridge body (1) and the support pier (2).