CN214613563U

CN214613563U - Anti-seismic device for highway bridge

Info

Publication number: CN214613563U
Application number: CN202022288214.7U
Authority: CN
Inventors: 曹凤刚; 张世卓
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-11-05
Anticipated expiration: 2030-10-14

Abstract

The utility model relates to the technical field of bridge anti-seismic, in particular to an anti-seismic device for a highway bridge, which comprises a bridge floor and an arch beam, wherein the left side and the right side of the bottom end of the bridge floor are provided with piers, the top ends of the piers are fixedly provided with a damping device, the top ends of the damping device are fixedly connected with the bottom end of the bridge floor, the top ends of the bridge floor are fixedly connected with the bottom end of the arch beam, the middle areas of the bridge floor and the arch beam are connected with an upper pull rod through a plurality of lower pull rods, and each lower pull rod is connected with the upper pull rod through a buffer device, the buffer device comprises a supporting box, the top end of the supporting box is fixedly connected with the bottom end of the upper pull rod, a cavity is arranged inside the supporting box, a baffle plate is arranged in the cavity, the bottom end of the cavity is provided with a round hole which penetrates up and down, the top end of the lower pull rod extends towards the inside of the cavity through the round hole, and the top end of the lower pull rod is fixedly connected with the bottom end of the baffle plate, the damping device comprises a bottom plate, thereby being suitable for most bridge construction.

Description

Anti-seismic device for highway bridge

Technical Field

The utility model relates to a bridge antidetonation technical field specifically is a public road bridge is with antidetonation device.

Background

As is well known, a bridge refers to a building constructed for roads to cross natural or artificial obstacles, and is erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through.

The prior art still has the following defects: the conventional anti-vibration device for the bridge is complex in structure and is designed independently according to the construction of each bridge.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a simple structure just is applicable to the public road bridge roof beam of most bridges and uses anti-seismic device.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an anti-seismic device for a highway bridge comprises a bridge deck and an arch beam, wherein piers are arranged on the left side and the right side of the bottom end of the bridge deck, shock-absorbing devices are fixedly arranged at the top ends of the piers, the top ends of the shock-absorbing devices are fixedly connected with the bottom end of the bridge deck, the top ends of the bridge deck are fixedly connected with the bottom end of the arch beam, the middle areas of the bridge deck and the arch beam are connected through a plurality of lower pull rods and upper pull rods, the lower pull rods and the upper pull rods are connected through buffering devices, each buffering device comprises a supporting box, the top ends of the supporting boxes are fixedly connected with the bottom end of the upper pull rod, a cavity is arranged inside the supporting box, a blocking plate is arranged in the cavity, a circular hole which penetrates through the cavity from top to bottom is formed in the bottom end of the cavity, the top ends of the lower pull rods extend towards the inside of the cavity through the circular hole, the top ends of the lower pull rods are fixedly connected with the bottom end of the blocking plate, an upper spring is arranged at the top end of the blocking plate, and the left side and the right side of the bottom end of the blocking plate are both provided with lower springs, the damping device comprises a bottom plate, a first pouring layer is arranged on the bottom plate, a first rubber layer, a first steel plate layer, a second rubber layer, a second pouring layer, a third rubber layer, a second steel plate layer, a fourth rubber layer and a third pouring layer are sequentially arranged outside the circumference of the first pouring layer.

Preferably, the top left side and the right side of bridge floor and the bottom left end and the right side of arched girder all are connected through rotating device, rotating device includes the swivel to swivel and bridge floor fixed connection, the top of swivel is provided with the spud pile to the bottom and the spud pile fixed connection of arched girder.

Preferably, a fixing rod is arranged in the damping device, and the bottom end of the fixing rod is fixedly connected with the middle part of the top end of the chassis.

Preferably, the outer wall of the pier is provided with a protective layer.

Preferably, the outer wall of the shock absorption block is provided with a baffle plate in a surrounding mode, and the upper area of the baffle plate is in contact with the third pouring layer.

Preferably, the outer wall of the arched beam is coated with a corrosion-resistant coating.

Preferably, the left side and the right side of the top end of the damping device are both provided with an anti-skidding baffle plate, and the top end of the anti-skidding baffle plate is fixedly connected with the bottom end of the bridge floor.

Preferably, the upper spring and the lower spring are made of alloy spring steel.

(III) advantageous effects

Compared with the prior art, the utility model provides a highway is anti-seismic device for bridge possesses following beneficial effect:

when the bridge floor or the pier transmits pressure to the damping device instantly, the first rubber layer, the second rubber layer, the third rubber layer and the fourth rubber layer in the damping device absorb pressure through contraction or expansion, and slowly release the absorbed pressure after the pressure is over, the first rubber layer is buffered through the first steel plate layer and the second steel plate layer, the second rubber layer, the third rubber layer and the fourth rubber layer and the first pouring layer, the second pouring layer and the third pouring layer are deformed to reduce the abrasion degree of the first rubber layer, the second rubber layer, the third rubber layer and the fourth rubber layer and the first pouring layer, the second pouring layer and the third pouring layer, the bridge floor is supported through the arch beam, the pressure transmitted to the arch beam by the bridge floor is relieved through an upper spring and a lower spring in the damping device, the anti-seismic device for the bridge floor relieves the pressure transmitted to the arch beam through the arch beam, the damping device and the pier is simple in structure, The damping device is suitable for the construction of most highway bridges, and the damping device is not required to be designed and manufactured independently due to different bridges.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic diagram of a partial enlarged structure at C in fig. 1 according to the present invention.

In the figure: 1. a bridge pier; 2. a bridge deck; 3. an arched beam; 4. a lower pull rod; 5. an upper pull rod; 6. a dust guard; 7. a first casting layer; 8. a first rubber layer; 9. a first steel deck; 10. a second rubber layer; 11. a third pouring layer; 12. a fourth rubber layer; 13. a second steel deck; 14. a third rubber layer; 15. a second pouring layer; 16. a baffle plate; 17. a lower spring; 18. a support box; 19. an upper spring; 20. fixing the pile; 21. fixing the rod; 22. rotating the ring; 23. a protective layer; 24. a base plate; 25. an anti-slip baffle; 26 corrosion resistant coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, an anti-seismic device for a highway bridge comprises a bridge deck 2 and an arch beam 3, piers 1 are arranged on the left side and the right side of the bottom end of the bridge deck 2, shock-absorbing devices are fixedly arranged on the top ends of the piers 1, the top ends of the shock-absorbing devices are fixedly connected with the bottom end of the bridge deck 2, the top ends of the bridge deck 2 are fixedly connected with the bottom end of the arch beam 3, the middle areas of the bridge deck 2 and the arch beam 3 are connected with each other through a plurality of lower pull rods 4 and upper pull rods 5, each lower pull rod 4 and upper pull rod 5 are connected with each other through a buffer device, each buffer device comprises a support box 18, the top end of each support box 18 is fixedly connected with the bottom end of each upper pull rod 5, a chamber is arranged inside each support box 18, a baffle 16 is arranged in each chamber, a circular hole penetrating through the bottom end of each chamber is formed in the bottom end of each lower pull rod 4, the top end of each lower pull rod 4 extends towards the inside of each chamber through the circular hole, and the bottom end of each baffle 16 is fixedly connected with each lower rod, the top end of the barrier plate 16 is provided with an upper spring 19, the left side and the right side of the bottom end of the barrier plate 16 are provided with lower springs 17, the damping device comprises a bottom plate 24, the bottom plate 24 is provided with a first pouring layer 7, the outer part of the circumference of the first pouring layer 7 is sequentially provided with a first rubber layer 8, a first steel plate layer 9, a second rubber layer 10, a second pouring layer 15, a third rubber layer 14, a second steel plate layer 13, a fourth rubber layer 12 and a third pouring layer 11, when the bridge deck 2 or the pier 1 instantly transmits pressure to the damping device, the first rubber layer 8, the second rubber layer 10, the third rubber layer 14 and the fourth rubber layer 12 in the damping device absorb the pressure through contraction or expansion, and when the pressure is slowly released after the pressure is passed, the first rubber layer 8 is buffered through the first steel plate layer 9 and the second steel plate layer 13, the second rubber layer 10, the third rubber layer 14 and the fourth rubber layer 12 and the first pouring layer 7, The deformation of the second pouring layer 15 and the third pouring layer 11 is reduced, the abrasion degree of the first rubber layer 8, the second rubber layer 10, the third rubber layer 14 and the fourth rubber layer 12 and the first pouring layer 7, the second pouring layer 15 and the third pouring layer 11 is reduced, the deformation of the bridge deck 2 is supported through the arch beam 3, and the pressure transmitted to the arch beam 3 by the bridge deck 2 is relieved through an upper spring 19 and a lower spring 17 inside a buffer device, the anti-seismic device for the highway bridge relieves and absorbs the pressure transmitted by the bridge deck 2 or the bridge pier 1 through the arch beam 3, the buffer device and the shock absorbing device, has simple structure and is suitable for the construction of most highway bridges, the shock absorbing device is not required to be separately designed and manufactured due to different bridges, the left side and the right side of the top end of the bridge deck 2 and the left side and the right side of the bottom end of the arch beam 3 are connected through rotating devices, each rotating device comprises a rotating ring 22, and the rotating ring 22 is fixedly connected with the bridge deck 2, the top end of the swivel 22 is provided with a fixed pile 20, the bottom end of the arched girder 3 is fixedly connected with the fixed pile 20, the bridge deck 2 and the arched girder 3 are prevented from deformation due to connection, a fixed rod 21 is arranged in the damping device, the bottom end of the fixed rod 21 is fixedly connected with the middle part of the top end of the chassis, the displacement of each workpiece in the damping device is prevented, the outer wall of the bridge pier 1 is provided with a protective layer 23, the aging of the bridge pier 1 is slowed down, the outer wall of the damping block is provided with a baffle 16 in a surrounding manner, the upper area of the baffle 16 is in contact with the third pouring layer 11, the environmental change oxidation rubber layer is prevented, external dust and impurities are prevented from entering the damping device, the outer wall of the arched girder 3 is coated with a corrosion-resistant coating 26, the oxidization of the arched girder 3 is slowed down, the upper spring 19 and the lower spring 17 are both made of alloy spring steel, the elasticity and the durability of the upper spring 19 and the lower spring 17 are increased, and both sides of the top end of the damping device are provided with anti-skid baffles 25, and the bottom end of the anti-skid baffle 25 is fixedly connected with the bottom end of the bridge deck 2, and when the bridge deck 2 is seriously displaced, the anti-skid baffle is displaced to prevent the damping device from being separated from the bridge deck 2 and the piers 1.

In summary, the working principle and the working process of the anti-seismic device for the highway bridge are that, when in use, the first rubber layer 8, the second rubber layer 10, the third rubber layer 14 and the fourth rubber layer 12 absorb pressure by contraction or expansion, and release the pressure when the pressure disappears, the deformation of the first rubber layer 8, the second rubber layer 10, the third rubber layer 14 and the fourth rubber layer 12 and the first pouring layer 7, the second pouring layer 15 and the third pouring layer 11 is buffered through the first steel plate layer 9 and the second steel plate layer 13, the pressure transmitted to the arched girders 3 by the deck 2 is relieved by the upper springs 19 and the lower springs 17 inside the cushioning device, the anti-seismic device for the highway bridge relieves and absorbs pressure transmitted by the bridge deck 2 or the bridge piers 1 through the arched beams 3, the buffer devices and the shock absorption devices, is simple in structure, is suitable for construction of most highway bridges, and does not need to design and manufacture the shock absorption devices independently due to different bridges.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a highway is antidetonation device for bridge, includes bridge floor (2) and arched girder (3), its characterized in that: the bridge deck is characterized in that piers (1) are arranged on the left side and the right side of the bottom end of the bridge deck (2), shock absorption devices are fixedly arranged at the top ends of the piers (1), the top ends of the shock absorption devices are fixedly connected with the bottom end of the bridge deck (2), the top ends of the bridge deck (2) are fixedly connected with the bottom end of the arched girder (3), the middle areas of the bridge deck (2) and the arched girder (3) are connected with upper pull rods (5) through a plurality of lower pull rods (4), each lower pull rod (4) is connected with the upper pull rod (5) through a buffer device, each buffer device comprises a support box (18), the top end of each support box (18) is fixedly connected with the bottom end of each upper pull rod (5), a cavity is arranged inside each support box (18), a baffle plate (16) is arranged in each cavity, round holes penetrating through the bottom ends of the cavities are formed in the bottom ends of the cavities, and the top ends of the lower pull rods (4) extend towards the interior of the cavities through the round holes, the damping device comprises a bottom plate (24), wherein an upper spring (19) is arranged at the top end of the blocking plate (16), lower springs (17) are arranged on the left side and the right side of the bottom end of the blocking plate (16), the damping device comprises a first pouring layer (7) arranged on the bottom plate (24), a first rubber layer (8), a first steel plate layer (9), a second rubber layer (10), a second pouring layer (15), a third rubber layer (14), a second steel plate layer (13), a fourth rubber layer (12) and a third pouring layer (11) are sequentially arranged outside the circumference of the first pouring layer (7).

2. An anti-seismic device for road bridges according to claim 1, wherein: the top left side and the right side of bridge floor (2) and the bottom left end and the right side of arched girder (3) all are connected through rotating device, rotating device includes swivel (22) to swivel (22) and bridge floor (2) fixed connection, the top of swivel (22) is provided with spud pile (20) to the bottom and spud pile (20) fixed connection of arched girder (3).

3. An anti-seismic device for road bridges according to claim 2, wherein: a fixing rod (21) is arranged in the damping device, and the bottom end of the fixing rod (21) is fixedly connected with the middle part of the top end of the chassis.

4. An anti-seismic device for road bridges according to claim 3, wherein: and a protective layer (23) is arranged on the outer wall of the pier (1).

5. An anti-seismic device for road bridges according to claim 4, wherein: the outer wall of the shock absorption device is provided with a dust baffle plate (6) in a surrounding mode, and the upper area of the dust baffle plate (6) is in contact with the third pouring layer (11).

6. An anti-seismic device for road bridges according to claim 5, wherein: the outer wall of the arched beam (3) is coated with a corrosion-resistant coating (26).

7. An anti-seismic device for road bridges according to claim 6, wherein: the left side and the right side of the top end of the damping device are both provided with an anti-skidding baffle plate (25), and the top end of the anti-skidding baffle plate (25) is fixedly connected with the bottom end of the bridge deck (2).

8. An anti-seismic device for road bridges according to claim 7, wherein: the upper spring (19) and the lower spring (17) are both made of alloy spring steel.