CN114875773A

CN114875773A - Viscous damper fixed mounting structure for bridge seismic resistance

Info

Publication number: CN114875773A
Application number: CN202210555472.8A
Authority: CN
Inventors: 秦远非; 赵世宇; 卓之艳; 孙禄松; 田洪韬
Original assignee: Anshan Highway Engineering Co ltd
Current assignee: Anshan Highway Engineering Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-08-09
Anticipated expiration: 2042-05-20
Also published as: CN114875773B

Abstract

The invention discloses a fixed mounting structure of a viscous damper for bridge earthquake resistance, belonging to the field of bridge safety, and comprising an upright post, wherein the top surface of the upright post is fixedly connected with a bridge frame, embedded connecting pieces are embedded in the side walls of the upright post and the bridge frame, a plurality of reinforcing ribs are fixedly connected to the side walls of the embedded connecting pieces, anti-falling barbs are fixedly connected to the side walls of the reinforcing ribs, circular grooves are formed in the side walls of the reinforcing ribs, the circular grooves penetrate through the embedded connecting pieces, a partition plate is fixedly connected to the side walls of the circular grooves, a filling cavity is arranged at one side of the partition plate, an extruding component is arranged at one side of the partition plate, a reinforcing cavity is arranged at the other side of the partition plate, and a reinforcing component is arranged at the other side of the partition plate, so that the embedded pieces are reinforced when the viscous damper is mounted, and the supporting strength of the viscous damper is increased, and the viscous damper can be supported and leveled during installation.

Description

Viscous damper fixed mounting structure for bridge seismic resistance

Technical Field

The invention relates to the field of bridge safety, in particular to a viscous damper fixing and mounting structure for bridge earthquake resistance.

Background

Along with the continuous perfection of the infrastructure in China, the engineering quantity of the bridge engineering is larger and larger, especially in bridge engineering, the service life of the bridge engineering is also ensured in order to ensure the use quality of the bridge engineering, in order to avoid the influence of an earthquake on a bridge, the earthquake-resistant performance of the bridge engineering structure is generally improved, and an earthquake-resistant buffering effect is performed by adopting a viscous damper, so that the installation of the viscous damper is also the central importance.

Found by patent search, the publication number: CN 103806369B's chinese patent discloses a connection mode for large-span bridge anti-seismic viscous damper, this patent can effectively install the viscous damper, but the viscous damper is not convenient for re-reinforcing the embedded part when being installed, the embedded part receives the gravity influence of the viscous damper and easily produces the gap between the concrete, can cause the phenomenon of shaking or even dropping for a long time, and when installing viscous damper one end, the other end needs to be supported with the help of equipment such as jack, if the installation site height is higher, it may need to assist with the help of large-scale machinery, thereby delay the installation process and waste a large amount of resources scheduling problem.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a fixed mounting structure of a viscous damper for bridge earthquake resistance, which can realize that an embedded part is reinforced when the viscous damper is mounted, the supporting strength of the viscous damper is increased, and the viscous damper can be supported and leveled when being mounted.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A viscous damper fixed mounting structure for bridge earthquake resistance comprises an upright post, wherein a bridge frame is fixedly connected to the top surface of the upright post, pre-buried connecting pieces are pre-buried in the upright post and the side wall of the bridge frame, a plurality of reinforcing ribs are fixedly connected to the side wall of the pre-buried connecting pieces, anti-falling barbs are fixedly connected to the side wall of the reinforcing ribs, circular grooves are formed in the side wall of the reinforcing ribs and penetrate through the pre-buried connecting pieces, a partition plate is fixedly connected to the side wall of the circular grooves, a filling cavity is formed in one side of the partition plate, an extrusion assembly is arranged on one side of the partition plate, a reinforcing cavity is formed in the other side of the partition plate, a reinforcing assembly is arranged on the other side of the partition plate, a damper body is arranged on the lower side of the bridge frame, connecting plates are movably connected to two ends of the damper body respectively, the connecting plates on the left side are fixedly connected with the pre-buried connecting pieces on the upright post, and the connecting plates on the right side are fixedly connected with heightening connecting blocks, heightening the embedded connecting piece fixed connection on the connecting block and the bridge frame, and lifting the assembly on the top surface of the connecting plate.

Furthermore, the extrusion subassembly includes reinforcing bolt, first internal thread has all been seted up to the circular slot lateral wall near attenuator body department, reinforcing bolt and the mutual setting that matches of first internal thread, a plurality of first through-hole has all been seted up to the circular slot lateral wall near reinforcing bolt department.

Further, consolidate the subassembly and include the movable rod, movable rod one end runs through the baffle and rather than swing joint, a plurality of fixed block of movable rod lateral wall fixedly connected with, the fixed block is round platform shape setting, a plurality of second through-hole has all been seted up to the circular slot lateral wall near fixed block department, equal swing joint has the toper piece in the second through-hole, the toper piece is close to the equal fixedly connected with ejector pin of movable rod one end, the ejector pin other end sets up for the slope, the inclination of the ejector pin other end is unanimous with the inclination of fixed block.

Further, the hoisting component comprises a cylinder, the cylinder is provided with two, the cylinder is fixedly connected with the left side connecting plate, a round rod is movably connected in the cylinder, the top end of the round rod is fixedly connected with the same supporting plate, the supporting plate is arranged in an L shape, triangular reinforcing ribs are fixedly connected at included angles of the supporting plate, a round hole is formed in the top surface of the supporting plate, a screw rod is movably connected in the round hole, the bottom end of the screw rod is provided with a clamping component, the bottom surface of the long edge of the supporting plate is located at the round hole and is movably connected with an annular plate, a second internal thread is formed in the inner wall of the annular plate, and the screw rod and the second internal thread are arranged in a matched mode.

Further, the centre gripping subassembly includes the rectangular block, rectangular block and screw rod bottom swing joint, lateral wall swing joint has the arc respectively around the rectangular block, the attenuator body is located between two arcs, two the arc lateral wall is close to downside department and all sets up threaded hole, threaded hole swing joint has same locking screw.

Further, vertical grooves are formed in the side wall of the embedded connecting piece, the reinforcing bolts are located in the vertical grooves, a plurality of lead screws are fixedly connected to the side wall of the embedded connecting piece, nuts are movably connected to the side wall of each lead screw, and the connecting plates are fixedly connected with the lead screws.

Furthermore, the top surface of the annular plate is fixedly connected with an annular sliding block, the bottom surface of the long edge of the support plate is provided with an annular sliding groove, and the annular sliding block is movably connected with the annular sliding groove.

Furthermore, the side walls of the first through hole and the second through hole are fixedly connected with shielding films close to the edges of the reinforcing ribs.

Further, it sets up to increase the connecting block cross-section and be T shape, it has the locking bolt that moves of a plurality of to increase swing joint between connecting block and the right side connecting plate.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the invention, through the mutual matching among the pre-buried connecting piece, the reinforcing rib, the extrusion assembly, the reinforcing assembly and the like, when the viscous damper is installed, the gap filler can be injected into the circular groove firstly, the reinforcing bolt is screwed up to extrude the gap filler from the first through hole for gap filling and reinforcing, and the reinforcing bolt can drive the conical block to move outwards to jack up the concrete, so that the supporting strength of the pre-buried connecting piece is increased.

(2) According to the viscous damper, the connecting plate, the hoisting assembly, the clamping assembly and the like are matched with each other, after one end of the viscous damper is installed, the clamping assembly can be used for supporting and clamping the viscous damper, the problems that the traditional supporting is inconvenient and the like are effectively solved, colleagues can adjust the horizontal gradient of the viscous damper by using the hoisting assembly, the other end of the viscous damper is convenient to install and fix, and therefore the use stability of the viscous damper can be effectively improved.

Drawings

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

FIG. 2 is a schematic structural view of a hoisting assembly according to the present invention;

FIG. 3 is a schematic structural view of a pre-buried connector according to the present invention;

FIG. 4 is a schematic view of the heightening connector of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of FIG. 1 taken at B.

The reference numbers in the figures illustrate:

1. a column; 2. a bridge frame; 3. pre-burying a connecting piece; 4. a circular groove; 5. reinforcing the bolt; 6. a first internal thread; 7. a partition plate; 8. a movable rod; 9. a fixed block; 10. a first through hole; 11. a second through hole; 12. a conical block; 13. a top rod; 14. a damper body; 15. a connecting plate; 16. a screw rod; 17. heightening connecting blocks; 18. a cylinder; 19. a support plate; 20. a circular hole; 21. a screw; 22. an annular plate; 23. a second internal thread; 24. a rectangular block; 25. an arc-shaped plate; 26. locking the screw; 27. triangular reinforcing ribs; 28. a round bar; 29. reinforcing ribs; 30. the anti-falling barb; 31. a vertical slot; 32. an annular slider; 33. an annular chute; 34. and (3) a shielding film.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example 1:

referring to fig. 1-6, a fixed mounting structure of a viscous damper for earthquake resistance of a bridge comprises a vertical column 1, a bridge frame 2 is fixedly connected to the top surface of the vertical column 1, pre-embedded connectors 3 are pre-embedded in the side walls of the vertical column 1 and the bridge frame 2, a plurality of reinforcing ribs 29 are fixedly connected to the side walls of the pre-embedded connectors 3, anti-falling barbs 30 are fixedly connected to the side walls of the reinforcing ribs 29, circular grooves 4 are formed in the side walls of the reinforcing ribs 29, the circular grooves 4 penetrate through the pre-embedded connectors 3, a partition 7 is fixedly connected to the side walls of the circular grooves 4, a filling cavity is formed in one side of the partition 7, an extrusion assembly is arranged in one side of the partition 7, a reinforcing assembly is arranged in the other side of the partition 7, a damper body 14 is arranged on the lower side of the bridge frame 2, connecting plates 15 are movably connected to two ends of the damper body 14, the connecting plate 15 on the left side is fixedly connected to the pre-embedded connectors 3 on the vertical column 1, the top surface of the right side connecting plate 15 is fixedly connected with a height increasing connecting block 17, the height increasing connecting block 17 is fixedly connected with the embedded connecting piece 3 on the bridge frame 2, and the top surface of the left side connecting plate 15 is provided with a hoisting assembly.

Referring to fig. 5, the extrusion assembly includes reinforcing bolt 5, and first internal thread 6 has all been seted up to circular slot 4 lateral wall near 14 departments of attenuator body, and reinforcing bolt 5 and first internal thread 6 match each other and set up, and circular slot 4 lateral wall is close to reinforcing bolt 5 department and has all seted up the first through-hole 10 of a plurality of.

Referring to fig. 5, the reinforcing assembly comprises a movable rod 8, one end of the movable rod 8 penetrates through the partition plate 7 and is movably connected with the partition plate, a plurality of fixed blocks 9 are fixedly connected with the side wall of the movable rod 8, the fixed blocks 9 are arranged in a circular truncated cone shape, a plurality of second through holes 11 are formed in the side wall of the circular groove 4 close to the fixed blocks 9, conical blocks 12 are movably connected in the second through holes 11, one ends of the conical blocks 12 close to the movable rod 8 are fixedly connected with ejector rods 13, the other ends of the ejector rods 13 are arranged in an inclined manner, and the inclined angle of the other ends of the ejector rods 13 is consistent with that of the fixed blocks 9;

through the mutually supporting between pre-buried connecting piece 3, strengthening rib 29, extrusion subassembly and the reinforcement subassembly etc. when installing viscous damper body 14, can pour into the gap filler into in the circular slot 4 earlier and screw up reinforcing bolt 5 and extrude the gap filler from first through-hole 10 and carry out the reinforcement of caulking, reinforcing bolt 5 can drive conical block 12 simultaneously again and push up tight concrete to the outside motion, increases pre-buried connecting piece 3's support intensity.

Wherein, in the reinforcing bolt 5 wrong income circular slot 4, can play the effect of caulking and strengthening on the one hand, on the other hand increases embedded connector 3's intensity, and embedded connector 3 can not take place deformation because of circular slot 4.

Referring to fig. 2, the hoisting assembly comprises a cylinder 18, the cylinder 18 is provided with two, the cylinder 18 is fixedly connected with the left side connecting plate 15, a round rod 28 is movably connected in the cylinder 18, the top end of the round rod 28 is fixedly connected with the same supporting plate 19, the supporting plate 19 is arranged in an L shape, a triangular reinforcing rib 27 is fixedly connected at the included angle of the supporting plate 19, a round hole 20 is formed in the top surface of the supporting plate 19, a screw rod 21 is movably connected in the round hole 20, the bottom end of the screw rod 21 is provided with a clamping assembly, the long-edge bottom surface of the supporting plate 19 is located at the round hole 20 and is movably connected with an annular plate 22, an annular sliding block 32 is fixedly connected to the top surface of the annular plate 22, an annular sliding groove 33 is formed in the long-edge bottom surface of the supporting plate 19, the annular sliding block 32 is movably connected with the annular sliding groove 33, a second internal thread 23 is formed in the inner wall of the annular plate 22, and the screw rod 21 and the second internal thread 23 are matched with each other.

Wherein, drum 18 accessible loose and tight parts such as screw fix on left side connecting plate 15, dismantle after the attenuator body 14 of being convenient for is installed, increase the cyclic utilization number of times of drum 18, and drum 18 internal diameter and round bar 28 diameter are mutually matchd, and round bar 28 inserts drum 18 and can play the effect of stable support.

Referring to fig. 2, the clamping assembly comprises a rectangular block 24, the rectangular block 24 is movably connected with the bottom end of the screw rod 21, the front side wall and the rear side wall of the rectangular block 24 are respectively movably connected with arc plates 25, the damper body 14 is positioned between the two arc plates 25, the side walls of the two arc plates 25 close to the lower sides are both provided with threaded holes, and the same locking screw 26 is movably connected in the threaded holes;

through connecting plate 15, mutually supporting between hoist and mount subassembly and the centre gripping subassembly etc, after finishing viscous damper body 14 one end installation, usable centre gripping subassembly supports the centre gripping to viscous damper body 14, has effectively solved the inconvenient scheduling problem of tradition support, and the horizontal gradient of the usable hoist and mount subassembly adjustment viscous damper body 14 of colleague is convenient for install viscous damper body 14 other end fixedly to can effectual improvement its stability in use.

Referring to fig. 3, 3 lateral walls of embedded connecting piece have all been seted up and have been erected groove 31, and reinforcing bolt 5 is located and erects the

groove

31, and 3 equal fixedly connected with a plurality of lead screws 16 of lateral wall of embedded connecting piece, the equal swing joint of 16 lateral walls of lead screw have the nut, and connecting plate 15 all with 16 fixed connection of lead screw can accomodate reinforcing bolt 5 on the one hand, and on the other hand is convenient for connecting plate 15 and embedded connecting piece 3 to install, has solved traditional needs at the welded-in-place problem.

Referring to fig. 5, the side walls of the first through hole 10 and the second through hole 11 are fixedly connected with the shielding films 34 at the edges close to the reinforcing ribs 29, and the shielding films 34 can prevent the concrete from leaking into the circular groove 4 when the embedded connector 3 is embedded in the concrete.

Referring to fig. 4, the section of the heightening connecting block 17 is in a T-shaped arrangement, a plurality of anti-loosening bolts are movably connected between the heightening connecting block 17 and the right connecting plate 15, and the heightening connecting block 17 can be selectively used according to the field installation requirement, so that the application range of the damper body 14 is enlarged.

When in use: when the damper body 14 needs to be installed, the pre-embedded connecting pieces 3 on the upright posts 1 and the bridge frame 2 are firstly reinforced, the caulking agent can be injected into the circular groove 4, then the liquid glue is applied on the upper drawing of the reinforcing bolt 5, the reinforcing bolt 5 is screwed into the first internal thread 6, so that the reinforcing bolt 5 extrudes the gap filler, the gap filler breaks the shielding film 34 from the first through hole 10, enters the gap between the reinforcing rib 29 and the concrete for filling, meanwhile, the reinforcing bolt 5 props against the movable rod 8 to move, the movable rod 8 drives the fixed block 9 to move, when the fixed block 9 contacts with the ejector rod 13, the ejector rod 13 is extruded by the inclined surface of the fixed block 9, the ejector rod 13 drives the conical block 12 to move outwards, the conical block 12 breaks the shielding film 34 to push against the concrete, therefore, the pre-buried connecting piece 3 is reinforced, and the supporting strength and firmness of the damper body 14 are improved;

then, the left connecting plate 15 and the screw rod 16 are fixed, the round rod 28 on the hoisting assembly is inserted into the cylinder 18, the arc plates 25 are opened towards two sides to wrap the damper body 14, and the locking screw 26 is screwed to fix, so that the damper body 14 can be supported, the problems that the damper body 14 is not convenient to support in the traditional installation are solved, the heightening connecting blocks 17 are increased and decreased according to requirements, the screw rod 16 and the embedded connecting piece 3 are fixed, the levelness of the damper body 14 is adjusted according to the horizontal state of the damper body, the annular plate 22 is rotated, the screw rod 21 is driven to move upwards or downwards through the second internal thread 23, the screw rod 21 drives the damper body 14 to change the angle through the clamping assembly, and after the damper body 14 is horizontally adjusted to the designated position, the right connecting plate 15 and the heightening connecting blocks 17 are fixed, so that the installation operation of the damper body 14 is completed, further improving the use efficiency.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a viscous damper fixed mounting structure is used to bridge antidetonation, includes stand (1), its characterized in that: the top surface of the upright post (1) is fixedly connected with a bridge beam frame (2), the side walls of the upright post (1) and the bridge beam frame (2) are pre-embedded with pre-embedded connecting pieces (3), the side wall of the pre-embedded connecting pieces (3) is fixedly connected with a plurality of reinforcing ribs (29), the side wall of each reinforcing rib (29) is fixedly connected with an anti-falling barb (30), circular grooves (4) are formed in the side walls of the reinforcing ribs (29), the circular grooves (4) penetrate through the pre-embedded connecting pieces (3), the side walls of the circular grooves (4) are fixedly connected with a partition plate (7), one side of the partition plate (7) is a filling cavity, one side of the partition plate (7) is provided with an extrusion assembly, the other side of the partition plate (7) is a reinforcing cavity, the other side of the partition plate (7) is provided with a reinforcing assembly, the lower side of the bridge beam frame (2) is provided with a damper body (14), and two ends of the damper body (14) are respectively and movably connected with a connecting plate (15), left side connecting plate (15) and pre-buried connecting piece (3) fixed connection on stand (1), right side connecting plate (15) top surface fixedly connected with increases connecting block (17), increase pre-buried connecting piece (3) fixed connection on connecting block (17) and bridge frame (2), the left side connecting plate (15) top surface is provided with hoist and mount subassembly.

2. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 1, characterized in that: the extrusion subassembly includes reinforcing bolt (5), first internal thread (6) have all been seted up to circular slot (4) lateral wall department of being close to attenuator body (14), reinforcing bolt (5) and first internal thread (6) match each other and set up, circular slot (4) lateral wall is close to reinforcing bolt (5) department and has all seted up the first through-hole of a plurality of (10).

3. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 1, characterized in that: consolidate the subassembly and include movable rod (8), movable rod (8) one end runs through baffle (7) and rather than swing joint, a plurality of fixed block (9) of movable rod (8) lateral wall fixedly connected with, fixed block (9) are round platform shape setting, a plurality of second through-hole (11) have all been seted up near fixed block (9) department to round groove (4) lateral wall, equal swing joint has toper piece (12) in second through-hole (11), toper piece (12) are close to the equal fixedly connected with ejector pin (13) of movable rod (8) one end, ejector pin (13) other end sets up for the slope, the inclination of the ejector pin (13) other end is unanimous with the inclination of fixed block (9).

4. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 1, characterized in that: the hoisting assembly comprises a cylinder (18), two cylinders (18) are arranged, the cylinders (18) are fixedly connected with the left connecting plate (15), round rods (28) are movably connected in the cylinders (18), the top end of the round rod (28) is fixedly connected with the same support plate (19), the support plate (19) is arranged in an L shape, a triangular reinforcing rib (27) is fixedly connected at the included angle of the support plate (19), a round hole (20) is formed in the top surface of the support plate (19), a screw rod (21) is movably connected in the round hole (20), a clamping component is arranged at the bottom end of the screw rod (21), the bottom surfaces of the long sides of the support plate (19) are movably connected with an annular plate (22) at the round hole (20), and a second internal thread (23) is formed in the inner wall of the annular plate (22), and the screw rod (21) and the second internal thread (23) are matched with each other.

5. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 4, characterized in that: the centre gripping subassembly includes rectangular block (24), rectangular block (24) and screw rod (21) bottom swing joint, lateral wall swing joint has arc (25) respectively around rectangular block (24), attenuator body (14) are located between two arcs (25), two arc (25) lateral wall is close to downside department and all sets up threaded hole, threaded hole swing joint has same locking screw (26).

6. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 1, characterized in that: the utility model discloses a reinforcing bolt, including pre-buried connecting piece (3), reinforcing bolt (5), connecting plate (15) and lead screw (16), pre-buried connecting piece (3) lateral wall has all been seted up and has been erected groove (31), reinforcing bolt (5) are located and erect groove (31), the equal fixedly connected with a plurality of lead screw (16) of pre-buried connecting piece (3) lateral wall, the equal swing joint of lead screw (16) lateral wall has the nut, connecting plate (15) all with lead screw (16) fixed connection.

7. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 4, characterized in that: annular slider (32) is fixedly connected with in annular plate (22) top surface, annular spout (33) have been seted up to extension board (19) long limit bottom surface, annular slider (32) and annular spout (33) swing joint.

8. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 2, characterized in that: the side walls of the first through hole (10) and the second through hole (11) are close to the edges of the reinforcing ribs (29) and are fixedly connected with shielding films (34).

9. The viscous damper fixed mounting structure for bridge earthquake resistance according to claim 1, characterized in that: the cross section of the heightening connecting block (17) is arranged in a T shape, and a plurality of anti-loosening bolts are movably connected between the heightening connecting block (17) and the right connecting plate (15).