CN214737323U

CN214737323U - Bridge anti-seismic structure

Info

Publication number: CN214737323U
Application number: CN202120436457.2U
Authority: CN
Inventors: 谈潭
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-27
Filing date: 2021-02-27
Publication date: 2021-11-16
Anticipated expiration: 2031-02-27

Abstract

The application relates to a bridge anti-seismic structure, which relates to the field of steel structure bridges and comprises a bottom column and a structural beam, wherein a damping device is arranged between the structural beam and the bottom column; the damping device comprises a damping spring which is abutted between the structural beam and the bottom column; a limiting groove is formed in the periphery of the bottom column; the upper groove wall of the limiting groove penetrates through the upper end face of the bottom column; a movable block is arranged in the limiting groove; the bottom column is provided with a driving assembly for driving the movable block to move along the height direction of the bottom column; and a guide assembly is arranged between the structural beam and the bottom column. This application has the effect of being convenient for change damping spring.

Description

Bridge anti-seismic structure

Technical Field

The application relates to the field of steel structure bridges, in particular to a bridge anti-seismic structure.

Background

At present, a steel bridge is a bridge with a main bearing structure made of steel, namely a steel structure bridge and a steel bridge, and is required to have higher strength and toughness and bear the load and impact of rolling stocks.

The existing Chinese utility model with publication number CN206109967U discloses an anti-seismic bridge steel structure, which comprises a bottom column and a structural beam body, wherein the bottom column and the structural beam body are connected through a damping spring, and composite plates are padded on the upper side and the lower side of the damping spring; the lower end face of the composite plate is padded on a boss of the bottom column, the upper end face of the composite plate is padded in a groove of the structural beam body, a protective ferrule is arranged around the damping spring, and a rubber gasket is sleeved on the boss corresponding to the protective ferrule; the outer side of the structural beam body is further fixedly provided with an ear plate, and the middle of the structural beam body is provided with two positioning inner grooves.

In view of the above-mentioned related art, the inventors consider that the life of the damper spring is limited, and when the damper spring is used for a certain period of time, the damper spring needs to be replaced with a new one. However, in the prior art, the damping spring is inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

For the convenience of changing damping spring, this application provides a bridge earthquake-resistant structure.

The application provides a bridge anti-seismic structure adopts following technical scheme:

a bridge anti-seismic structure comprises a bottom column and a structural beam, wherein a damping device is arranged between the structural beam and the bottom column; the damping device comprises a damping spring which is abutted between the structural beam and the bottom column; a limiting groove is formed in the periphery of the bottom column; the upper groove wall of the limiting groove penetrates through the upper end face of the bottom column; a movable block is arranged in the limiting groove; the bottom column is provided with a driving assembly for driving the movable block to move along the height direction of the bottom column; and a guide assembly is arranged between the structural beam and the bottom column.

Through adopting above-mentioned technical scheme, when damping spring needs to be changed, through drive assembly drive movable block rebound to make the movable block prop open structure roof beam and foundation, reduce the extrusion of structure roof beam to damping spring, make damping spring can be convenient for the level take out. After the damping spring is replaced, the movable block is controlled to move downwards along the height direction of the bottom column through the driving assembly, so that the two ends of the damping spring can be respectively abutted against the structural beam and the bottom column piece, and the bridge is buffered.

Preferably, the bottom of the movable block is provided with a thread groove; a movable groove is formed in the upper groove wall of the thread groove; the driving assembly comprises a threaded rod on the rotation limiting groove; the upper end of the threaded rod penetrates through the threaded groove and is fixed with a limiting block; the limiting block is in sliding fit with the movable groove; the threaded rod is in threaded connection with the threaded groove; the periphery of the bottom column is provided with an installation groove; the lower end of the threaded rod extends into the mounting groove and is fixed with an adjusting sleeve.

Through adopting above-mentioned technical scheme, through rotating the adjusting collar, drive the threaded rod and rotate to can make threaded column and movable block take place relative displacement, the movable block can go up and down along the direction of height of spacing groove under the effect of threaded rod, and then can be with one section distance in the jacking of structure roof beam, be convenient for carry out damping spring's change.

Preferably, the adjusting sleeve is a gear; the outer side wall of the bottom column is sleeved with a driving sleeve; the inner side wall of the driving sleeve is meshed with the adjusting sleeve; and the bottom column is provided with a limiting part for limiting the driving sleeve to move along the height direction of the bottom column.

Through adopting above-mentioned technical scheme, rotate the drive cover, can be convenient for drive the adjusting collar and rotate to can make the threaded rod rotate, and then drive the movable block and go up and down along the direction of height of spacing groove.

Preferably, the limiting member includes a first fixing ring and a second fixing ring fixed to the peripheral side of the bottom pillar; the lower end face of the first fixing ring is attached to the upper end face of the driving sleeve; the upper end face of the second fixing ring is attached to the lower end face of the driving sleeve.

Through adopting above-mentioned technical scheme, on the foundation was located to the drive cover, can not discover the level and lie in, the solid fixed ring's of first solid fixed ring and second restriction for the drive cover can not take place the displacement of vertical direction along the stand, thereby makes the drive cover can mesh throughout with the adjusting collar, is convenient for adjust the threaded rod.

Preferably, the guide assembly comprises a first guide block for fixing the upper end surface of the base and a second guide block fixed on the lower end surface of the structural beam; the upper end surface of the first guide block is provided with a sliding groove; the lower end of the second guide block is inserted into the sliding groove and is in sliding connection with the sliding groove; and a connecting spring is connected between the lower end of the second guide block and the bottom of the sliding groove.

Through adopting above-mentioned technical scheme, first guide block and second guide block can the connection of additional strengthening structure roof beam and bottom pillar, and when the bridge received vibrations, the second guide block can remove along the spout on the first guide block for connecting spring is compressed. Under the effect of direction subassembly for can vertically go up and down when the structure roof beam receives vibrations, reduce the dislocation between structure roof beam and the foundation.

Preferably, the guide assemblies are symmetrically arranged about the axis of the bottom pillar in two.

Through adopting above-mentioned technical scheme, be provided with two sets of direction subassemblies, can improve the guide effect when receiving vibrations to the structure roof beam for when the structure roof beam receives vibrations, the buffering effect is more balanced.

Preferably, the second guide block is sleeved with a locking sleeve; the section of the locking sleeve is U-shaped; when the movable block jacks up the structural beam, the locking sleeve is sleeved on the second guide block and tightly abuts against the upper end face of the first guide block.

Through adopting above-mentioned technical scheme, set up the lock sleeve, when needing to be changed damping spring, after jacking a section distance with the structure roof beam through the movable block, locate the lock sleeve cover on the second guide block to lock sleeve and second guide block through the bolt, the lower extreme of lock sleeve supports tightly with the up end of first guide block, thereby can improve the support to the structure roof beam, is convenient for take out damping spring.

Preferably, a first mounting plate is fixed on the lower end face of the structural beam; a second mounting plate is fixed on the upper end face of the bottom column; a vertical first positioning column is fixed on the lower end face of the first mounting plate; a vertical second positioning column is fixed on the upper end face of the second mounting plate; the top of the damping spring is sleeved on the first positioning column, and the bottom of the damping spring is sleeved on the second positioning column.

Through adopting above-mentioned technical scheme, set up first reference column and second reference column, the outside of first reference column is located to damping spring's bottom cover, and the outside of second reference column is located to damping spring's top cover to make spring mounting between first mounting panel and second mounting panel, simultaneously, damping spring installs through this kind of mode, and is more convenient to damping spring's change, and first reference column and second reference column are favorable to restricting damping spring's off tracking.

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

when the damping spring needs to be replaced, the driving assembly drives the movable block to move upwards, and the movable block is enabled to prop the structural beam and the bottom column apart, so that the extrusion of the structural beam on the damping spring is reduced, and the damping spring can be conveniently and horizontally taken out;

the threaded rod is driven to rotate by rotating the adjusting sleeve, so that the threaded column and the movable block can generate relative displacement, the movable block can lift along the height direction of the limiting groove under the action of the threaded rod, and the structural beam can be lifted up by a certain distance, so that the damping spring can be conveniently replaced;

under the effect of direction subassembly for can vertically go up and down when the structure roof beam receives vibrations, reduce the dislocation between structure roof beam and the foundation.

Drawings

Fig. 1 is a schematic structural diagram of the whole of the embodiment of the present application.

Fig. 2 is a schematic structural view of a shock absorbing device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a guide assembly according to an embodiment of the present application.

Description of reference numerals: 1. a structural beam; 2. a bottom pillar; 21. a limiting groove; 22. mounting grooves; 3. a damping device; 31. a first mounting plate; 32. a second mounting plate; 33. a first positioning post; 34. a second positioning column; 35. a damping spring; 4. a guide assembly; 41. a first guide block; 411. a chute; 42. a second guide block; 43. a connecting spring; 5. a movable block; 51. a thread groove; 52. a movable groove; 6. a drive assembly; 61. a threaded rod; 62. an adjusting sleeve; 63. a drive sleeve; 64. a limiting block; 7. a limiting member; 71. a first retaining ring; 72. a second retaining ring; 8. and a locking sleeve.

Detailed Description

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

The embodiment of the application discloses bridge earthquake-resistant structure. Referring to fig. 1, a bridge earthquake-resistant structure, includes structural beam 1 and the foundation 2 that uses with structural beam 1 cooperation, foundation 2 and structural beam 1 are steel material and make, and the bottom fixed connection of structural beam 1 and bridge body, the lower extreme and the ground fixed connection of foundation 2.

Referring to fig. 2, install damping device 3 between structure roof beam 1 and foundation 2, damping device 3 includes first mounting panel 31, second mounting panel 32, first reference column 33, second reference column 34 and damping spring 35, first mounting panel 31 is fixed in the lower terminal surface of structure roof beam 1 through the bolt, second mounting panel 32 is fixed in the up end of foundation 2 through the bolt, be fixed with a plurality of first reference columns 33 at the lower terminal surface of first mounting panel 31, be fixed with a plurality of second reference columns 34 at the up end of second mounting panel 32, first reference column 33 and the equal vertical setting of second reference column 34, and damping spring 35's top cover is located on first reference column 33, damping spring 35's bottom cover is located on second reference column 34, be favorable to improving the spacing to damping spring 35, make damping spring 35 be difficult for breaking away from between structure roof beam 1 and foundation 2 when the shock attenuation.

Referring to fig. 3, in order to guide the structural beam 1 when the bridge vibrates, two guide assemblies 4 are installed between the structural beam 1 and the bottom pillar 2, and the two guide assemblies 4 are symmetrically arranged about the axis of the bottom pillar 2. The guide assembly 4 comprises a first guide block 41, a second guide block 42 and a connecting spring 43, the first guide block 41 fixes the upper end face of the base, the first guide block 41 is close to the peripheral side of the bottom column 2, a sliding groove 411 is formed in the upper end face of the first guide block 41, the upper end of the second guide block 42 is fixedly connected with the lower end of the structural beam 1, the lower end of the second guide block 42 is inserted into the sliding groove 411 and is in sliding connection with the sliding groove 411, and the connecting spring 43 is connected between the lower end of the second guide block 42 and the bottom of the sliding groove 411.

Referring to fig. 2, the circumferential side of the bottom pillar 2 is provided with two limiting grooves 21, the two limiting grooves 21 are symmetrically arranged about the axis of the bottom pillar 2, the limiting grooves 21 and the guide component 4 are arranged in a staggered manner, the upper groove wall of the limiting groove 21 penetrates through the upper end face of the bottom pillar 2, and the movable block 5 is slidably connected in the limiting groove 21. Install drive assembly 6 on the foundation 2 for drive movable block 5 removes along the direction of height of foundation 2, thereby can strut one section distance with structure roof beam 1 and foundation 2, is convenient for take out damping spring 35 and changes. The bottom of the movable block 5 is provided with a thread groove 51, the upper groove wall of the thread groove 51 is provided with a movable groove 52, the movable groove 52 is arranged along the height direction of the movable block 5, the peripheral side of the bottom column 2 is provided with a mounting groove 22, and the mounting groove 22 is positioned below the limiting groove 21. Drive assembly 6 includes threaded rod 61, adjusting collar 62 and drive cover 63, threaded rod 61 rotates to be connected on spacing groove 21, and threaded rod 61's upper end pass thread groove 51 and with thread groove 51 threaded connection, threaded rod 61's upper end is fixed with the stopper 64 with activity groove 52 sliding fit, threaded rod 61's lower extreme stretches into in the mounting groove 22 and is connected with the tank bottom rotation of mounting groove 22, adjusting collar 62 is fixed in on threaded rod 61, and adjusting collar 62 sets up in mounting groove 22, adjusting collar 62 is the gear, drive cover 63 overlaps on the lateral wall of foundation column 2, and the inside wall of drive cover 63 meshes with the outside wall of adjusting collar 62. Through rotating the driving sleeve 63, drive adjusting sleeve 62 and rotate for threaded rod 61 rotates, thereby can make the movable block 5 can remove along the direction of height of spacing groove 21.

Referring to fig. 2, in order to limit the driving sleeve 63 such that the driving sleeve 63 and the adjusting sleeve 62 are always engaged with each other, a limiting member 7 for limiting the driving sleeve 63 from moving in the height direction of the bottom pillar 2 is installed on the bottom pillar 2. The limiting member 7 includes a first fixing ring 71 and a second fixing ring 72, the first fixing ring 71 and the second fixing ring 72 are both fixed on the periphery of the bottom pillar 2, and are disposed at an interval therebetween, the lower end face of the first fixing ring 71 is fitted to the upper end face of the driving sleeve 63, and the upper end face of the second fixing ring 72 is fitted to the lower end face of the driving sleeve 63.

Referring to fig. 3, after the movable block 5 struts the structural beam 1 and the bottom column 2 by a certain distance, the second guide block 42 is sleeved with the locking sleeve 8, the cross section of the locking sleeve 8 is U-shaped, the opening of the locking sleeve 8 faces the center of the bottom column 2, the upper end surface of the locking sleeve 8 is abutted to the lower end surface of the structural beam 1, and the lower end surface of the locking sleeve 8 is abutted to the upper end surface of the first guide block 41.

The implementation principle of the bridge anti-seismic structure provided by the embodiment of the application is as follows: when the damping spring 35 needs to be replaced, firstly, the driving sleeve 63 is rotated to drive the adjusting sleeve 62 to rotate, the adjusting sleeve 62 drives the threaded rod 61 to rotate, so that the movable block 5 rises along the limiting groove 21 to jack up the structural beam 1, and the structural beam 1 and the bottom column 2 are spread for a certain distance, at the moment, the second guide block 42 and the first guide block 41 are pulled open, the locking sleeve 8 is sleeved on the second guide block 42, so that the upper end surface of the locking sleeve 8 is abutted against the lower end surface of the structural beam 1, the lower end surface of the locking sleeve 8 is abutted against the upper end surface of the first guide block 41, and through the bolt with lock sleeve 8 and second guide block 42 locking, damping spring 35's both ends receive less pressure this moment, can conveniently take out damping spring 35 from the clearance between structure roof beam 1 and foundation 2 to the stability of changing damping spring 35 can be improved to the setting of lock sleeve 8.

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 earthquake-resistant structure, includes foundation column (2) and structural beam (1), its characterized in that: a damping device (3) is arranged between the structural beam (1) and the bottom column (2); the damping device (3) comprises a damping spring (35) which is abutted between the structural beam (1) and the bottom column (2); a limit groove (21) is formed in the periphery of the bottom column (2); the upper groove wall of the limiting groove (21) penetrates through the upper end face of the bottom pillar (2); a movable block (5) is arranged in the limiting groove (21); the bottom column (2) is provided with a driving component (6) for driving the movable block (5) to move along the height direction of the bottom column (2); a guide assembly (4) is arranged between the structural beam (1) and the bottom column (2).

2. A bridge seismic structure according to claim 1, wherein: the bottom of the movable block (5) is provided with a thread groove (51); a movable groove (52) is formed in the upper groove wall of the thread groove (51); the driving component (6) comprises a threaded rod (61) on the rotation limiting groove (21); the upper end of the threaded rod (61) penetrates through the threaded groove (51) and is fixed with a limit block (64); the limiting block (64) is in sliding fit with the movable groove (52); the threaded rod (61) is in threaded connection with the threaded groove (51); the periphery of the bottom column (2) is provided with an installation groove (22); the lower end of the threaded rod (61) extends into the mounting groove (22) and is fixed with an adjusting sleeve (62).

3. A bridge seismic structure according to claim 2, wherein: the adjusting sleeve (62) is a gear; the outer side wall of the bottom column (2) is sleeved with a driving sleeve (63); the inner side wall of the driving sleeve (63) is meshed with the adjusting sleeve (62); the bottom pillar (2) is provided with a limiting part (7) used for limiting the driving sleeve (63) to move along the height direction of the bottom pillar (2).

4. A bridge seismic structure according to claim 3, wherein: the limiting piece (7) comprises a first fixing ring (71) and a second fixing ring (72) which are fixed on the peripheral side of the bottom pillar (2); the lower end face of the first fixing ring (71) is attached to the upper end face of the driving sleeve (63); the upper end face of the second fixing ring (72) is attached to the lower end face of the driving sleeve (63).

5. A bridge seismic structure according to claim 1, wherein: the guide assembly (4) comprises a first guide block (41) for fixing the upper end surface of the base and a second guide block (42) fixed on the lower end surface of the structural beam (1); the upper end face of the first guide block (41) is provided with a sliding groove (411); the lower end of the second guide block (42) is inserted into the sliding groove (411) and is in sliding connection with the sliding groove (411); and a connecting spring (43) is connected between the lower end of the second guide block (42) and the bottom of the sliding groove (411).

6. A bridge seismic structure according to claim 1, wherein: the two guide assemblies (4) are symmetrically arranged relative to the axis of the bottom column (2).

7. A bridge earthquake-resistant structure as defined in claim 5, wherein: the second guide block (42) is sleeved with a locking sleeve (8); the section of the locking sleeve (8) is U-shaped; when the movable block (5) jacks up the structural beam (1), the locking sleeve (8) is sleeved on the second guide block (42) and tightly abutted against the upper end face of the first guide block (41).

8. A bridge seismic structure according to claim 1, wherein: a first mounting plate (31) is fixed on the lower end face of the structural beam (1); a second mounting plate (32) is fixed on the upper end face of the bottom column (2); a vertical first positioning column (33) is fixed on the lower end face of the first mounting plate (31); a vertical second positioning column (34) is fixed on the upper end face of the second mounting plate (32); the top of the damping spring (35) is sleeved on the first positioning column (33), and the bottom of the damping spring (35) is sleeved on the second positioning column (34).