CN114875773B - Viscous damper fixed mounting structure for bridge seismic resistance - Google Patents
Viscous damper fixed mounting structure for bridge seismic resistance Download PDFInfo
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- CN114875773B CN114875773B CN202210555472.8A CN202210555472A CN114875773B CN 114875773 B CN114875773 B CN 114875773B CN 202210555472 A CN202210555472 A CN 202210555472A CN 114875773 B CN114875773 B CN 114875773B
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- reinforcing
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a fixed mounting structure of a viscous damper for bridge earthquake resistance, which belongs to the field of bridge safety and comprises 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, round grooves are formed in the side walls of the reinforcing ribs, the round grooves penetrate through the embedded connecting pieces, a partition plate is fixedly connected to the side walls of the round grooves, one side of the partition plate is provided with a filling cavity, one side of the partition plate is provided with an extrusion component, the other side of the partition plate is provided with a reinforcing cavity, and the other side of the partition plate is provided with a reinforcing component.
Description
Technical Field
The invention relates to the field of bridge safety, in particular to a fixed mounting structure of a viscous damper for bridge earthquake resistance.
Background
Along with the continuous perfection of the basic construction facilities in China, the engineering quantity is larger and larger, particularly in bridge engineering, the service life is guaranteed for guaranteeing the service quality, the anti-seismic performance of the bridge engineering structure is generally improved for avoiding the influence of earthquakes on the bridge, and the viscous damper is adopted for anti-seismic buffering, so that the installation of the viscous damper is also important.
Patent search finds that, publication number: CN103806369B discloses a connection mode of a viscous damper for vibration-proof of a large span bridge, which can effectively install the viscous damper, but the viscous damper is inconvenient to carry out re-reinforcing operation on an embedded part when installed, the embedded part is easily subjected to the gravity influence of the viscous damper and gaps are easily generated between concrete, shaking and even falling phenomena are caused for a long time, when one end of the viscous damper is installed, the other end of the viscous damper needs to be supported by means of equipment such as a jack, if the installation site is higher, the viscous damper may need to be assisted by means of large machinery, thereby delaying the installation process and wasting a large amount of resources.
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 seismic resistance, which can realize reinforcement treatment on an embedded part during mounting of the viscous damper, increase the supporting strength of the viscous damper, and can support and level the viscous damper during mounting.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides a viscous damper fixed mounting structure for bridge antidetonation, includes the stand, stand top surface fixedly connected with bridge frame, the stand is all pre-buried with bridge frame lateral wall has pre-buried connecting piece, the equal fixedly connected with of pre-buried connecting piece lateral wall a plurality of strengthening rib, strengthening rib lateral wall fixedly connected with anti-drop barb, the circular slot has all been seted up to the inside strengthening rib lateral wall, the circular slot runs through pre-buried connecting piece, circular slot lateral wall fixedly connected with baffle, baffle one side is the filling chamber, baffle one side is provided with extrusion subassembly, the baffle opposite side is the reinforcement chamber, the baffle opposite side is provided with reinforcement subassembly, the bridge frame downside is provided with the attenuator body, swing joint has the connecting plate respectively in attenuator body both ends, the left side pre-buried connecting piece fixed connection on connecting plate and the stand, the right side connecting plate top surface fixedly connected with increases the connecting block, increase pre-buried connecting piece fixed connection on connecting piece and the bridge frame, the left side the connecting plate top surface is provided with hoisting assembly.
Further, the extrusion assembly comprises a reinforcing bolt, first internal threads are formed in the position, close to the damper body, of the side wall of the circular groove, the reinforcing bolt and the first internal threads are arranged in a matched mode, and a plurality of first through holes are formed in the position, close to the reinforcing bolt, of the side wall of the circular groove.
Further, the reinforcement assembly includes the movable rod, movable rod one end runs through the baffle and rather than swing joint, movable rod lateral wall fixedly connected with a plurality of fixed block, the fixed block is the round platform shape setting, round groove lateral wall is close to fixed block department and has all offered a plurality of second through-hole, 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 hoist and mount subassembly includes the drum, the drum is provided with two, the drum all is connected with left side connecting plate fixed connection, equal swing joint has the round bar in the drum, the same extension board of round bar top fixedly connected with, the extension board is L shape setting, extension board contained angle department fixedly connected with triangle reinforcing rib, the round hole has been seted up to the extension board top surface, swing joint has the screw rod in the round hole, the screw rod bottom is provided with the clamping component, the long limit bottom of extension board is located round hole department swing joint has the annular plate, the second internal thread has been seted up to the annular plate inner wall, screw rod and second internal thread mutual match set up.
Further, the clamping assembly comprises a rectangular block, the rectangular block is movably connected with the bottom end of the screw rod, arc plates are movably connected to the front side wall and the rear side wall of the rectangular block respectively, the damper body is located between the two arc plates, threaded holes are formed in the positions, close to the lower sides, of the side walls of the arc plates, and the same locking screw is movably connected to the threaded holes.
Further, perpendicular groove has all been seted up to pre-buried connecting piece lateral wall, reinforcing bolt is located perpendicular inslot, the equal fixedly connected with a plurality of lead screw of pre-buried connecting piece lateral wall, the equal swing joint of lead screw lateral wall has the nut, the connecting plate all with lead screw fixed connection.
Further, annular sliding blocks are fixedly connected to the top surface of the annular plate, annular sliding grooves are formed in the bottom surface of the long side of the support plate, and the annular sliding blocks are movably connected with the annular sliding grooves.
Furthermore, shielding films are fixedly connected to the side walls of the first through holes and the second through holes close to the edges of the reinforcing ribs.
Furthermore, the cross section of the heightening connecting block is in a T-shaped structure, and a plurality of anti-loosening bolts are movably connected between the heightening connecting block and the right 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 embedded connecting piece, the reinforcing rib, the extrusion assembly, the reinforcing assembly and the like, when the viscous damper is installed, the caulking agent can be injected into the circular groove first, the reinforcing bolt is screwed to extrude the caulking agent from the first through hole for caulking and reinforcing, and meanwhile, the reinforcing bolt can drive the conical block to move outwards to push against the concrete, so that the supporting strength of the embedded connecting piece is increased.
(2) According to the invention, through the mutual matching among the connecting plate, the hoisting assembly, the clamping assembly and the like, after one end of the viscous damper is installed, the clamping assembly can be used for supporting and clamping the viscous damper, the problems of inconvenient traditional supporting and the like are effectively solved, and the hoisting assembly can be used by colleagues for adjusting the horizontal inclination of the viscous damper, so that the other end of the viscous damper is conveniently installed and fixed, and the use stability of the viscous damper can be effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a hoisting assembly according to the present invention;
FIG. 3 is a schematic view of the structure of the embedded connector of the present invention;
FIG. 4 is a schematic view of the construction of the heightened connection of the present invention;
FIG. 5 is an enlarged view of the portion A of FIG. 1 in accordance with the present invention;
fig. 6 is an enlarged view of the point B in fig. 1 in the present invention.
The reference numerals in the figures illustrate:
1. a column; 2. a bridge frame; 3. embedding a connecting piece; 4. a circular groove; 5. reinforcing bolts; 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 push rod; 14. a damper body; 15. a connecting plate; 16. a screw rod; 17. heightening the connecting blocks; 18. a cylinder; 19. a support plate; 20. a round hole; 21. a screw; 22. an annular plate; 23. a second internal thread; 24. rectangular blocks; 25. an arc-shaped plate; 26. a locking screw; 27. triangular reinforcing ribs; 28. a round bar; 29. reinforcing ribs; 30. an anti-falling barb; 31. a vertical groove; 32. an annular slide block; 33. an annular chute; 34. and a shielding film.
Detailed Description
The technical solutions 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 apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Example 1:
referring to fig. 1-6, a viscous damper fixed mounting structure for bridge anti-seismic comprises a vertical column 1, wherein the top surface of the vertical column 1 is fixedly connected with a bridge frame 2, embedded connecting pieces 3 are respectively embedded in the side walls of the vertical column 1 and the bridge frame 2, a plurality of reinforcing ribs 29 are respectively fixedly connected to the side walls of the embedded connecting pieces 3, anti-falling barbs 30 are fixedly connected to the side walls of the reinforcing ribs 29, round grooves 4 are respectively formed in the side walls of the reinforcing ribs 29, the round grooves 4 penetrate through the embedded connecting pieces 3, a partition 7 is fixedly connected to the side walls of the round grooves 4, one side of the partition 7 is a filling cavity, an extrusion component is arranged on one side of the partition 7, a reinforcing cavity is arranged on the other side of the partition 7, a reinforcing component is arranged on 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 respectively movably connected to two ends of the damper body 14, a right connecting plate 15 is fixedly connected to the embedded connecting pieces 3 on the vertical column 1, a right connecting plate 15 is fixedly connected to an heightening connecting block 17, and the heightening connecting blocks 17 are fixedly connected to the embedded connecting pieces 3 on the bridge frame 2, and a left connecting plate 15 is provided with a hoisting component.
Referring to fig. 5, the extrusion assembly includes a reinforcing bolt 5, a first internal thread 6 is formed on a side wall of the circular groove 4 near the damper body 14, the reinforcing bolt 5 and the first internal thread 6 are matched with each other, and a plurality of first through holes 10 are formed on a side wall of the circular groove 4 near the reinforcing bolt 5.
Referring to fig. 5, the reinforcing component comprises a movable rod 8, one end of the movable rod 8 penetrates through a partition 7 and is movably connected with the partition, a plurality of fixed blocks 9 are fixedly connected to the side wall of the movable rod 8, the fixed blocks 9 are arranged in a circular table shape, a plurality of second through holes 11 are formed in the positions, close to the fixed blocks 9, of the side wall of the circular groove 4, conical blocks 12 are movably connected in the second through holes 11, ejector rods 13 are fixedly connected to one ends, close to the movable rod 8, of the conical blocks 12, the other ends of the ejector rods 13 are obliquely arranged, and the inclination angles of the other ends of the ejector rods 13 are consistent with those of the fixed blocks 9;
through the mutual cooperation 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 caulking compound into circular slot 4 earlier and screw up reinforcement bolt 5 and extrude the caulking compound from first through-hole 10 and carry out the caulking reinforcement, reinforcement bolt 5 can drive the toper piece 12 outside and move the tight concrete of top again simultaneously, increases the support strength of pre-buried connecting piece 3.
Wherein, in the stiffening bolt 5 screwed in the circular slot 4, can play the effect of caulking and reinforcement on the one hand, on the other hand increases the intensity of pre-buried connecting piece 3, pre-buried connecting piece 3 can not take place deformation because of the circular slot 4.
Referring to fig. 2, the hoisting assembly comprises cylinders 18, two cylinders 18 are arranged, the cylinders 18 are fixedly connected with a left connecting plate 15, round rods 28 are movably connected in the cylinders 18, the top ends of the round rods 28 are fixedly connected with the same support plates 19, the support plates 19 are in L-shaped arrangement, triangular reinforcing ribs 27 are fixedly connected at the included angles of the support plates 19, round holes 20 are formed in the top surfaces of the support plates 19, screw rods 21 are movably connected in the round holes 20, clamping assemblies are arranged at the bottom ends of the screw rods 21, annular plates 22 are movably connected at the bottom surfaces of the long sides of the support plates 19 at the round holes 20, annular sliding blocks 32 are fixedly connected with the top surfaces of the annular plates 22, annular sliding grooves 33 are formed in the bottom surfaces of the long sides of the support plates 19, the annular sliding blocks 32 are movably connected with the annular sliding grooves 33, second internal threads 23 are formed in the inner walls of the annular plates 22, and the screw rods 21 and the second internal threads 23 are mutually matched.
The cylinder 18 can be fixed on the left connecting plate 15 through components such as an elastic screw, so that the damper body 14 can be conveniently detached after being installed, the recycling frequency of the cylinder 18 is increased, the inner diameter of the cylinder 18 is matched with the diameter of the round rod 28, and the round rod 28 can be inserted into the cylinder 18 to achieve the effect of stable support.
Referring to fig. 2, the clamping assembly includes a rectangular block 24, the rectangular block 24 is movably connected with the bottom end of the screw 21, the front and rear side walls of the rectangular block 24 are respectively movably connected with an arc plate 25, the damper body 14 is located between the two arc plates 25, the side walls of the two arc plates 25 are provided with threaded holes near the lower side, and the threaded holes are movably connected with the same locking screw 26;
through mutually supporting between connecting plate 15, hoist and mount subassembly and the clamping assembly etc., after finishing the installation of viscous damper body 14 one end, the clamping assembly is supported and is centre gripping to viscous damper body 14, has effectively solved traditional inconvenient scheduling problem of supporting, and the colleague can utilize hoist and mount subassembly to adjust the horizontal gradient of viscous damper body 14, is convenient for install the viscous damper body 14 other end fixedly to can effectually improve its stability in use.
Referring to fig. 3, vertical grooves 31 are all provided on the side walls of the embedded connecting pieces 3, reinforcing bolts 5 are located in the vertical grooves 31, a plurality of screw rods 16 are fixedly connected to the side walls of the embedded connecting pieces 3, nuts are movably connected to the side walls of the screw rods 16, connecting plates 15 are fixedly connected with the screw rods 16, on one hand, the reinforcing bolts 5 can be stored, on the other hand, the connecting plates 15 and the embedded connecting pieces 3 are convenient to install, and the problem that on-site welding is needed in the prior art is solved.
Referring to fig. 5, the side walls of the first through hole 10 and the second through hole 11 are fixedly connected with shielding films 34 near the edges of the reinforcing ribs 29, and the shielding films 34 can prevent concrete from leaking into the circular groove 4 when the embedded connecting piece 3 is embedded in the concrete.
Referring to fig. 4, the cross section of the heightening connection block 17 is in a T-shape, a plurality of anti-loosening bolts are movably connected between the heightening connection block 17 and the right connection plate 15, and the heightening connection block 17 can be selectively used according to the field installation requirement, so that the application range of the damper body 14 is increased.
When in use: when the damper body 14 is required to be installed, the pre-buried connecting piece 3 on the upright post 1 and the bridge frame 2 is reinforced, a caulking agent can be injected into the circular groove 4, then the reinforcing bolt 5 is subjected to drawing with liquid glue, the reinforcing bolt 5 is screwed into the first internal thread 6, the reinforcing bolt 5 extrudes the caulking agent, the caulking agent breaks the shielding film 34 from the first through hole 10, enters a gap between the reinforcing rib 29 and concrete to be filled, meanwhile, the reinforcing bolt 5 is propped against the movable rod 8 to move, the movable rod 8 drives the fixed block 9 to move, when the fixed block 9 is contacted with the ejector rod 13, the inclined surface of the fixed block 9 is utilized to extrude the ejector rod 13, the tapered block 12 is driven to move outwards, and the tapered block 12 breaks the shielding film 34 to prop up the concrete, so that the pre-buried connecting piece 3 is reinforced, and the supporting strength and the firmness of the damper body 14 are improved;
the left connecting plate 15 and the screw rod 16 are fixed firstly, the round rod 28 on the hoisting assembly is inserted into the cylinder 18, the arc plates 25 are opened to two sides to wrap the damper body 14, the locking screw 26 is screwed for fixing, the damper body 14 can be supported, the problems that the traditional damper body 14 is inconvenient to mount and support are solved, the connecting block 17 is increased or 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 at the moment, the annular plate 22 is rotated firstly, 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, after the damper body 14 is horizontally adjusted to a specified position, the right connecting plate 15 and the increased connecting block 17 are fixed, and therefore the installation operation of the damper body 14 is completed, and the use efficiency of the damper is further improved.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a viscous damper fixed mounting structure for bridge antidetonation, includes stand (1), its characterized in that: the novel bridge is characterized in that the top surface of the upright post (1) is fixedly connected with the bridge frame (2), the upright post (1) and the side wall of the bridge frame (2) are both pre-buried with a pre-buried connecting piece (3), the side wall of the pre-buried connecting piece (3) is fixedly connected with a plurality of reinforcing ribs (29), the side wall of the reinforcing ribs (29) is fixedly connected with anti-falling barbs (30), round grooves (4) are formed in the side wall of the reinforcing ribs (29), the round grooves (4) penetrate through the pre-buried connecting piece (3), a partition plate (7) is fixedly connected with the side wall of the round grooves (4), 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 frame (2) is provided with a damper body (14), two ends of the damper body (14) are respectively and movably connected with a connecting plate (15), the left side of the connecting plate (15) is fixedly connected with the pre-buried connecting piece (3) on the upright post (1), one side of the partition plate is provided with a lifting assembly (17), and the top surface of the partition plate (7) is fixedly connected with the lifting assembly (17) on the lifting assembly, and the lifting assembly (17) is fixedly connected with the lifting assembly on the top surface of the bridge (17).
The extrusion assembly comprises a reinforcing bolt (5), first internal threads (6) are formed in the side wall of the circular groove (4) close to the damper body (14), the reinforcing bolt (5) and the first internal threads (6) are arranged in a matched mode, and a plurality of first through holes (10) are formed in the side wall of the circular groove (4) close to the reinforcing bolt (5);
the reinforcing component comprises a movable rod (8), one end of the movable rod (8) penetrates through a partition plate (7) and is movably connected with the partition plate, a plurality of fixed blocks (9) are fixedly connected to the side wall of the movable rod (8), the fixed blocks (9) are arranged in a round table shape, a plurality of second through holes (11) are formed in the side wall of the round groove (4) close to the fixed blocks (9), conical blocks (12) are movably connected in the second through holes (11), ejector rods (13) are fixedly connected to one ends of the conical blocks (12) close to the movable rod (8), the other ends of the ejector rods (13) are obliquely arranged, and the inclination angle of the other ends of the ejector rods (13) is consistent with that of the fixed blocks (9);
the hoisting assembly comprises cylinders (18), the cylinders (18) are provided with two cylinders (18), the cylinders (18) are fixedly connected with left connecting plates (15), round rods (28) are movably connected in the cylinders (18), the same support plate (19) is fixedly connected to the top ends of the round rods (28), the support plates (19) are arranged in an L shape, triangular reinforcing ribs (27) are fixedly connected to the included angles of the support plates (19), round holes (20) are formed in the top surfaces of the support plates (19), screw rods (21) are movably connected in the round holes (20), clamping assemblies are arranged at the bottom ends of the screw rods (21), annular plates (22) are movably connected to the bottom surfaces of the long sides of the support plates (19), second inner threads (23) are formed in the inner walls of the annular plates (22), and the screw rods (21) and the second inner threads (23) are mutually matched.
2. The bridge vibration-resistant viscous damper fixing and mounting structure according to claim 1, wherein: the clamping assembly comprises rectangular blocks (24), the rectangular blocks (24) are movably connected with the bottom ends of the screws (21), arc plates (25) are movably connected to the front side wall and the rear side wall of each rectangular block (24), the damper body (14) is located between the two arc plates (25), threaded holes are formed in the positions, close to the lower sides, of the side walls of the arc plates (25), and the same locking screw (26) is movably connected to the threaded holes.
3. The bridge vibration-resistant viscous damper fixing and mounting structure according to claim 1, wherein: vertical grooves (31) are formed in the side walls of the embedded connecting pieces (3), the reinforcing bolts (5) are located in the vertical grooves (31), a plurality of screw rods (16) are fixedly connected to the side walls of the embedded connecting pieces (3), nuts are movably connected to the side walls of the screw rods (16), and the connecting plates (15) are fixedly connected with the screw rods (16).
4. The bridge vibration-resistant viscous damper fixing and mounting structure according to claim 1, wherein: the top surface of the annular plate (22) is fixedly connected with an annular sliding block (32), an annular sliding groove (33) is formed in the bottom surface of the long side of the support plate (19), and the annular sliding block (32) is movably connected with the annular sliding groove (33).
5. The bridge vibration-resistant viscous damper fixing and mounting structure according to claim 1, wherein: and shielding films (34) are fixedly connected to the side walls of the first through holes (10) and the second through holes (11) close to the edges of the reinforcing ribs (29).
6. The bridge vibration-resistant viscous damper fixing and mounting structure according to claim 1, wherein: the section of the heightening connecting block (17) is in a T-shaped structure, and a plurality of anti-loosening bolts are movably connected between the heightening connecting block (17) and the right connecting plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555472.8A CN114875773B (en) | 2022-05-20 | 2022-05-20 | Viscous damper fixed mounting structure for bridge seismic resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555472.8A CN114875773B (en) | 2022-05-20 | 2022-05-20 | Viscous damper fixed mounting structure for bridge seismic resistance |
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| CN114875773A CN114875773A (en) | 2022-08-09 |
| CN114875773B true CN114875773B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210555472.8A Active CN114875773B (en) | 2022-05-20 | 2022-05-20 | Viscous damper fixed mounting structure for bridge seismic resistance |
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| CN111794078A (en) * | 2020-07-30 | 2020-10-20 | 中铁第五勘察设计院集团有限公司 | Steel truss girder cable-stayed bridge and bracket connecting device of damper of steel truss girder cable-stayed bridge |
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| JP2615397B2 (en) * | 1991-11-07 | 1997-05-28 | 建設省土木研究所長 | Variable damper device for bridges |
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