CN213203769U

CN213203769U - Bridge antidetonation bearing structure

Info

Publication number: CN213203769U
Application number: CN202021718502.5U
Authority: CN
Inventors: 马文涛; 王锐; 许书玉
Original assignee: Shaanxi Hualuda Highway Survey And Design Co ltd
Current assignee: Shaanxi Hualuda Highway Survey And Design Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-05-14
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a bridge anti-seismic support structure in the technical field of bridge anti-seismic, which comprises a base station, the top end of the base station is fixedly embedded with a buffer plate, the top end of the buffer plate is fixedly assembled with a pier, the top end of the pier is fixedly assembled with a supporting beam, a plurality of supporting seats with the same structure are uniformly arranged at the top end of the supporting beam, a cover beam is fixedly assembled at the top end of each supporting seat, the bent cap top fixed mounting has horizontal bridge, horizontal bridge bottom left and right sides symmetry is provided with the fixing base, and is two sets of the fixing base is all through double-screw bolt fixedly connected with fixed plate, and is two sets of the double-screw bolt all passes horizontal bridge, and is two sets of the fixed plate bottom all laminates with horizontal bridge top, and is two sets of the equal movable hinge in fixing base bottom has the bumper shock absorber, and is two sets of the bumper shock absorber other end is articulated with the supporting shoe activity of fixed mounting on the wall of pier left and right sides respectively. The anti-seismic performance of the bridge is fully improved, the purpose of stably supporting the bridge is achieved, and the practicability is high.

Description

Bridge antidetonation bearing structure

Technical Field

The utility model relates to a bridge antidetonation technical field specifically is a bridge antidetonation bearing structure.

Background

The development of bridge bearings in China begins in the last 60 th century, spherical steel bearings, plate-type rubber bearings, basin-type rubber bearings and the like are successively researched and developed on the basis of traditional steel bearings, and the spherical steel bearings, the plate-type rubber bearings, the basin-type rubber bearings and the like are widely applied to highway bridges and railway bridges. However, the design of the support adopts the concept of 'static design', only the structural size of the support is increased to resist 'hard earthquake force', the method is not favorable for the support or the pier, and the best solution is to improve the stress of the support and the stress state of the pier by damping and isolating the support. However, although some bridges can bear the vibration force of an earthquake in terms of strength, the upper and lower structures of the bridge are not firmly connected and have poor integrity, so that the upper and lower structures of the bridge are often subjected to excessive relative displacement, and the bridge is broken. Earthquake often happens randomly, the bridge cannot be adjusted according to specific vibration by the conventional bridge anti-seismic method, the bridge structure can generate large plastic deformation and even be broken after the bridge is vibrated, and the bridge cannot be used continuously due to the fact that the bridge is difficult to repair after the earthquake, so that great loss is caused. Therefore, the anti-seismic bridge supporting structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bridge antidetonation bearing structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bridge antidetonation bearing structure, includes the base station, the fixed scarf joint in base station top has the buffer board, the fixed pier that is equipped with in buffer board top, the fixed supporting beam that is equipped with in pier top, it evenly is provided with the same supporting seat of a plurality of structures to prop up supporting beam top, the fixed bent cap that is equipped with in supporting seat top, the fixed horizontal bridge that is equipped with in bent cap top, horizontal bridge bottom left and right sides symmetry is provided with the fixing base, and is two sets of the fixing base is all through double-screw bolt fixedly connected with fixed plate, and is two sets of the double-screw bolt all passes horizontal bridge, and is two sets of the fixed plate bottom all laminates with horizontal bridge top, and is two sets of the equal movable hinge in fixing base bottom.

Preferably, the supporting seat includes the shock attenuation cushion, goes up steel core, compound shock attenuation steel column, steel column casing, rubber protection layer, lower steel core, lower shock attenuation cushion, it is provided with the shock attenuation cushion to go up the steel core top, it is provided with compound shock attenuation steel column to go up the steel core bottom, the compound shock attenuation steel column outside is provided with steel column casing, the steel column casing outside is provided with the rubber protection layer, compound shock attenuation steel column bottom is provided with down the steel core, the steel core bottom is provided with down the shock attenuation cushion down.

Preferably, the composite damping steel column comprises an upper rubber block, a steel column damping pad, a damping partition plate and a lower rubber block, the upper rubber block is arranged at the top end of the composite damping steel column, the lower rubber block is arranged at the bottom end of the composite damping steel column, the steel column damping pad and the damping partition plate are arranged in the middle of the composite damping steel column, and the steel column damping pad and the damping partition plate are sequentially and alternately distributed.

Preferably, the upper connecting steel plate is fixedly assembled at the bottom end of the cover beam, and the lower connecting steel plate is fixedly assembled at the bottom end of the supporting beam.

Preferably, the number of the supporting seats is distributed according to the actual width of the bridge.

Preferably, the two groups of dampers are symmetrically distributed.

Preferably, the support beam is fixedly buckled on the top end of the pier.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has reasonable structure design, and the bent cap is arranged at the bottom of the horizontal bridge and supports the main weight from the horizontal bridge, so that the crack resistance and the rigidity of the horizontal bridge can be improved; the supporting seat is arranged between the cover beam and the supporting beam, so that the horizontal bridge and the pier have good shock absorption and shock resistance effects and good elastic bearing capacity; the composite damping steel column is arranged in the supporting seat, and is provided with the upper-layer rubber block, the steel column damping pad, the damping partition plate and the lower-layer rubber block, so that multifunctional multi-structure damping of the anti-seismic bridge structure is realized, the anti-seismic single structure is damaged, other structures continue to resist seismic, safety protection is carried out layer by layer, and anti-seismic is more efficient; the shock absorbers are arranged at the two ends of the horizontal bridge, so that the shock at the two ends of the horizontal bridge can be effectively buffered when being subjected to shock, the damage of the shock to the bridge is reduced, and the auxiliary supporting effect is also realized; through set up the buffer board in pier bottom, further alleviated vibrations. The utility model discloses an above design optimization has fully improved the anti-seismic performance of bridge, has reached the purpose to bridge stabilizing support, and the practicality is strong.

Drawings

FIG. 1 is a schematic sectional view of the overall structure of the present invention;

fig. 2 is a schematic view of the supporting seat structure of the present invention.

In the figure: 1. a base station; 2. a buffer plate; 3. a bridge pier; 4. a support beam; 5. a supporting seat; 501. an upper shock absorption rubber cushion; 502. an upper connecting steel plate; 503. compounding damping steel columns; 5031. an upper layer rubber block; 5032. a steel column shock pad; 5033. a shock-absorbing spacer plate; 5034. a lower layer rubber block; 504. a steel column shell; 505. a rubber protective layer; 506. a lower connecting steel plate; 507. a lower shock-absorbing rubber pad; 6. a capping beam; 7. a horizontal bridge; 8. a fixed seat; 9. a stud; 10. a fixing plate; 11. a shock absorber; 12. and (7) a supporting block.

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.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a bridge anti-seismic supporting structure comprises a base station 1, a buffer plate 2 is fixedly embedded at the top end of the base station 1, vibration is further relieved by the buffer plate 2, a pier 3 is fixedly assembled at the top end of the buffer plate 2, a supporting beam 4 is fixedly assembled at the top end of the pier 3, a plurality of supporting seats 5 with the same structure are uniformly arranged at the top end of the supporting beam 4, a cover beam 6 is fixedly assembled at the top end of each supporting seat 5, a horizontal bridge 7 is fixedly assembled at the top end of each cover beam 6, the cover beam 6 supports the main weight of the horizontal bridge 7 and can increase the crack resistance and rigidity of the horizontal bridge 7, fixing seats 8 are symmetrically arranged on the left side and the right side of the bottom end of the horizontal bridge 7, fixing seats 8 are fixedly connected with fixing plates 10 through studs 9, two sets of studs 9 penetrate through the horizontal bridge 7, the bottom ends, the other ends of the two groups of shock absorbers 11 are respectively and movably hinged with supporting blocks 12 fixedly assembled on the left side wall and the right side wall of the pier 3.

The supporting seat 5 comprises an upper damping rubber pad 501, an upper connecting steel plate 502, a composite damping steel column 503, a steel column shell 504, a rubber protective layer 505, a lower connecting steel plate 506 and a lower damping rubber pad 507, wherein the upper damping rubber pad 501 is arranged at the top end of the upper connecting steel plate 502, the composite damping steel column 503 is arranged at the bottom end of the upper connecting steel plate 502, the steel column shell 504 is arranged at the outer side of the composite damping steel column 503, the rubber protective layer 505 is arranged at the outer side of the steel column shell 504, the lower connecting steel plate 506 is arranged at the bottom end of the composite damping steel column 503, and the lower damping;

the composite shock absorption steel column 503 comprises an upper layer rubber block 5031, a steel column shock absorption pad 5032, a shock absorption partition 5033 and a lower layer rubber block 5034, the upper layer rubber block 5031 is arranged at the top end of the composite shock absorption steel column 503, the lower layer rubber block 5034 is arranged at the bottom end of the composite shock absorption steel column 503, a steel column shock absorption pad 5032 and a shock absorption partition 5033 are arranged in the middle of the composite shock absorption steel column 503, and the steel column shock absorption pad 5032 and the shock absorption partition 5033 are sequentially and alternately distributed;

the upper connecting steel plate 502 is fixedly assembled at the bottom end of the cover beam 6, and the lower connecting steel plate 506 is fixedly assembled at the bottom end of the support beam 4;

the number of the supporting seats 5 is distributed according to the actual width of the bridge, so that the effect of effective anti-seismic support is achieved;

the two groups of shock absorbers 11 are symmetrically distributed, so that when being subjected to shock, the shock absorbers can effectively buffer the shock at the two ends of the horizontal bridge 7, reduce the damage of the shock to the bridge and play a role in auxiliary support;

the supporting beam 4 is fixedly buckled on the top end of the pier 3;

the working principle is as follows: the utility model has reasonable structure design, and the bent cap 6 is arranged at the bottom of the horizontal bridge 7, and the bent cap 6 supports the main weight from the horizontal bridge 7, thereby increasing the crack resistance and rigidity of the horizontal bridge 7; the supporting seat 5 is arranged between the cover beam 6 and the supporting beam 4, so that the horizontal bridge 7 and the pier 3 have good shock absorption and anti-seismic effects and good elastic bearing capacity; by arranging the composite damping steel column 503 in the supporting seat 5, and arranging the upper layer rubber block 5031, the steel column damping pad 5032, the damping partition 5033 and the lower layer rubber block 5034 on the composite damping steel column 503, the multifunctional multi-structure damping of the anti-seismic bridge structure is realized, and the damaged anti-seismic single structure has continuous anti-seismic of other structures, so that the anti-seismic single structure is protected layer by layer, and the anti-seismic is more efficient; the shock absorbers 11 are arranged at the two ends of the horizontal bridge 7, so that the shock at the two ends of the horizontal bridge 7 can be effectively buffered when the horizontal bridge is vibrated, the damage of the vibration to the bridge is reduced, and the auxiliary supporting effect is also realized; the vibration is further relieved by arranging the buffer plate 2 at the bottom of the pier 3. The utility model discloses an above design optimization has fully improved the anti-seismic performance of bridge, has reached the purpose to bridge stabilizing support, and the practicality is strong.

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 bridge antidetonation bearing structure, includes base station (1), its characterized in that: the top end of the base station (1) is fixedly embedded with a buffer plate (2), the top end of the buffer plate (2) is fixedly provided with a pier (3), the top end of the pier (3) is fixedly provided with a supporting beam (4), the top end of the supporting beam (4) is uniformly provided with a plurality of supporting seats (5) with the same structure, the top end of each supporting seat (5) is fixedly provided with a bent cap (6), the top end of each bent cap (6) is fixedly provided with a horizontal bridge (7), the left side and the right side of the bottom end of the horizontal bridge (7) are symmetrically provided with fixing seats (8), two groups of the fixing seats (8) are fixedly connected with fixing plates (10) through studs (9), two groups of the studs (9) pass through the horizontal bridge (7), the bottom ends of the two groups of the fixing plates (10) are respectively attached to the top, the other ends of the two groups of shock absorbers (11) are respectively and movably hinged with supporting blocks (12) fixedly assembled on the left side wall and the right side wall of the pier (3).

2. A bridge earthquake-resistant support structure according to claim 1, characterized in that: the supporting seat (5) comprises an upper damping rubber cushion (501), an upper connecting steel plate (502), a composite damping steel column (503), a steel column shell (504), a rubber protective layer (505), a lower connecting steel plate (506) and a lower damping rubber cushion (507), wherein the upper damping rubber cushion (501) is arranged on the top end of the upper connecting steel plate (502), the composite damping steel column (503) is arranged on the bottom end of the upper connecting steel plate (502), the steel column shell (504) is arranged on the outer side of the composite damping steel column (503), the rubber protective layer (505) is arranged on the outer side of the steel column shell (504), the lower connecting steel plate (506) is arranged on the bottom end of the composite damping steel column (503), and the lower damping rubber cushion (507) is arranged on the.

3. A bridge earthquake-resistant support structure according to claim 2, characterized in that: the composite damping steel column (503) comprises an upper-layer rubber block (5031), a steel column damping pad (5032), a damping partition plate (5033) and a lower-layer rubber block (5034), wherein the upper-layer rubber block (5031) is arranged at the top end of the composite damping steel column (503), the lower-layer rubber block (5034) is arranged at the bottom end of the composite damping steel column (503), the steel column damping pad (5032) and the damping partition plate (5033) are arranged in the middle of the composite damping steel column (503), and the steel column damping pad (5032) and the damping partition plate (5033) are sequentially and alternately distributed.

4. A bridge earthquake-resistant support structure according to claim 2, characterized in that: the upper connecting steel plate (502) is fixedly assembled at the bottom end of the cover beam (6), and the lower connecting steel plate (506) is fixedly assembled at the bottom end of the supporting beam (4).

5. A bridge earthquake-resistant support structure according to claim 1, characterized in that: the number of the supporting seats (5) is distributed according to the actual width of the bridge.

6. A bridge earthquake-resistant support structure according to claim 1, characterized in that: the two groups of shock absorbers (11) are symmetrically distributed.

7. A bridge earthquake-resistant support structure according to claim 1, characterized in that: the supporting beam (4) is fixedly buckled on the top end of the pier (3).