CN109914225B - Bridge anti-seismic device - Google Patents
Bridge anti-seismic device Download PDFInfo
- Publication number
- CN109914225B CN109914225B CN201811558136.9A CN201811558136A CN109914225B CN 109914225 B CN109914225 B CN 109914225B CN 201811558136 A CN201811558136 A CN 201811558136A CN 109914225 B CN109914225 B CN 109914225B
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- bridge
- plate
- sliding
- movable plate
- damping
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- 238000013016 damping Methods 0.000 claims abstract description 32
- 230000035939 shock Effects 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005381 potential energy Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge anti-seismic device, which comprises a bridge plate (1), wherein the bottom surface of the bridge plate is connected with a movable plate (3) through a group of damping pads (2); two sides of the movable plate are connected with the shock absorption component (6) through a group of connecting columns (4) uniformly distributed along the length direction of the bridge plate; the bottom surface of the movable plate is connected with a pair of symmetrically arranged buffer components (7); the bottom surface of the damping component (and the bottom surface of the damping component (7) are connected with the bottom plate (5), the pressure spring can offset transverse micro-vibration, the condition that a bridge is transversely shifted due to earthquake is avoided, the stability of the bridge anti-seismic support is improved, the bridge pier body is uniformly stressed, the service life of the bridge anti-seismic support is prolonged, when the movable plate is stressed, the telescopic column is retracted by pushing down the top seat, the two connecting rods are driven to push the two sliding blocks to do separation movement, and therefore the sliding blocks compress the springs on the guide shafts to convert the vertical kinetic energy of the telescopic column into potential energy, so that the anti-seismic effect is achieved, and the stability of the bridge plate is comprehensively and effectively ensured.
Description
Technical Field
The invention relates to a bridge anti-seismic device, and belongs to the technical field of bridge anti-seismic.
Background
With the development of transportation industry and the improvement of building engineering standards, the support not only plays a role in supporting in bridges and other engineering, but also has the functions of vibration reduction, pulling resistance, bending moment release and displacement resistance. At present, the condition that prefabricated bridge slab falls from the pier frequently appears in the earthquake, and the reason that the bridge slab falls from the pier lies in: when an earthquake occurs, a large horizontal force and a large vertical force are generated, so that the prefabricated bridge plate is horizontally displaced and vertically displaced, and when the displacement exceeds the laying width of the prefabricated bridge plate on the bent cap or the table cap, the bridge plate falls, at the moment, the bridge is damaged, and safety accidents can occur to pedestrians and vehicles on and under the bridge.
When the bridge is subjected to multidirectional vibration, the bridge plate cannot correspondingly move, so that the bridge is easy to damage, the multidirectional vibration resistance of the bridge is poor, the service life of the bridge is relatively short, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a bridge anti-seismic device, when a bridge is subjected to multidirectional vibration, a bridge plate can correspondingly move, so that the bridge is prevented from being damaged, the multidirectional vibration resistance of the bridge is improved, the service life of the bridge is prolonged, the potential safety hazard of the bridge is reduced to the minimum, and the defects of the prior art are overcome.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a bridge anti-seismic device, which comprises a bridge plate, wherein the bottom surface of the bridge plate is connected with a movable plate through a group of damping pads; two sides of the movable plate are connected with the shock absorption component through a group of connecting columns uniformly distributed along the length direction of the bridge plate; the bottom surface of the movable plate is connected with a pair of symmetrically arranged buffer components; the damping component and the bottom surface of the damping component are connected with the bottom plate.
In the bridge anti-seismic device, the top surfaces of the damping pads are provided with glue rods uniformly distributed, and the damping pads are connected with the bottom surfaces of the bridge plates through the glue rods.
In the bridge anti-seismic device, the connecting column is of an inverted L structure, the horizontal end of the inverted L structure is connected with the side edge of the movable plate, and the vertical end of the inverted L structure is connected with the damping component.
In the bridge anti-seismic device, the damping component comprises a U-shaped steel plate, an opening of the U-shaped steel plate is upward, and the bottom surface of the U-shaped steel plate is connected with the bottom plate through bolts; the inner walls of the two sides of the U-shaped steel plate are respectively provided with a sliding groove, a sliding plate is arranged in each sliding groove, and the sliding plates are in sliding connection with the sliding grooves; the opposite surfaces of the two sliding plates are provided with bolt grooves; the bolt grooves of the two sliding plates are connected through a stud, a movable cylinder is sleeved on the stud, and the top of the movable cylinder is connected with the connecting column; a hexagonal flat nut is arranged at the position of the stud close to the sliding plate; the stud is sleeved with a pressure spring, and two ends of the pressure spring are provided with limiting rings.
In the bridge anti-seismic device, the buffer assembly comprises a footstock, wherein the top of the footstock is connected with the movable plate; the bottom of the top seat is connected with the bottom plate through a telescopic column; two ends of the top seat are hinged with the sliding block through a connecting rod, and one side of the sliding block is connected with the fixed block through a spring; the guide hole on the slide block is connected with the guide shaft in a sliding way.
Due to the adoption of the technical scheme, compared with the prior art, the pressure spring can counteract transverse micro-vibration, so that the situation of transverse displacement of a bridge caused by an earthquake is avoided, the stability of the bridge anti-seismic support is improved, the bridge pier body is uniformly stressed, and the service life of the bridge anti-seismic support is prolonged; when the movable plate is stressed, the footstock is pressed down to enable the telescopic column to retract, and the two connecting rods are driven to push the two sliding blocks to do separation movement, so that the vertical kinetic energy of the telescopic column is converted into potential energy by the springs on the sliding block compression guide shafts, the anti-seismic effect is achieved, and the stability of the bridge plate is comprehensively and effectively guaranteed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a shock absorbing assembly;
fig. 3 is an enlarged view of a portion of the ellipse of fig. 1.
The reference numerals in the drawings are: the novel damping device comprises a 1-bridge plate, a 2-damping pad, a 3-movable plate, a 4-connecting column, a 5-bottom plate, a 6-damping component, a 61-U-shaped steel plate, a 62-sliding groove, a 63-sliding plate, a 64-bolt groove, a 65-stud, a 66-movable cylinder, a 67-hexagonal flat nut, a 68-pressure spring, a 69-limiting ring, a 7-damping component, a 71-fixed block, a 72-spring, a 73-sliding block, a 74-guiding shaft, a 75-telescopic column, a 76-footstock and a 77-connecting rod.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The invention relates to a bridge anti-seismic device, which is shown in figure 1, and comprises a bridge plate 1, wherein the bottom surface of the bridge plate 1 is connected with a movable plate 3 through a group of damping pads 2; two sides of the movable plate 3 are connected with the shock absorption component 6 through a group of connecting columns 4 uniformly distributed along the length direction of the bridge plate 1; the bottom surface of the movable plate 3 is connected with a pair of symmetrically arranged buffer components 7; the bottom surfaces of the damping component 6 and the buffering component 7 are connected with the bottom plate 5. The top surface of the damping pad 2 is provided with uniformly distributed rubber rods, and the damping pad 2 is connected with the bottom surface of the bridge plate 1 through the rubber rods. The connecting column 4 is of an inverted L structure, the horizontal end of the inverted L structure is connected with the side edge of the movable plate 3, and the vertical end of the inverted L structure is connected with the damping component 6.
As shown in fig. 2, the damping component 6 comprises a U-shaped steel plate 61, wherein the opening of the U-shaped steel plate 61 is upward, and the bottom surface of the U-shaped steel plate 61 is connected with the bottom plate 5 through bolts; the inner walls of the two sides of the U-shaped steel plate 61 are respectively provided with a sliding groove 62, a sliding plate 63 is arranged in each sliding groove 62, and the sliding plates 63 are in sliding connection with the sliding grooves 62; the opposite surfaces of the two sliding plates are provided with bolt grooves 64; the bolt grooves 64 of the two sliding plates are connected through a stud 65, a movable cylinder 66 is sleeved on the stud 65, and the top of the movable cylinder 66 is connected with the connecting column 4; a hexagonal flat nut 67 is arranged at the position of the stud 65 close to the sliding plate 63; the stud 65 is sleeved with a compression spring 68, and two ends of the compression spring 68 are provided with limiting rings 69.
As shown in fig. 3, the buffer assembly 7 includes a top base 76 whose top is connected to the movable plate 3; the bottom of the top seat 76 is connected with the bottom plate 5 through a telescopic column 75; two ends of the top seat 76 are hinged with the sliding block 73 through a connecting rod 77, and one side of the sliding block 73 is connected with the fixed block 71 through a spring 72; the guide hole of the slider 73 is slidably connected to the guide shaft 74.
Examples
The bridge anti-seismic device of the example, as shown in figure 1, comprises a bridge plate 1, a damping pad 2, a movable plate 3, a connecting column 4, a bottom plate 5, a damping component 6 and a buffer component 7. The upper surface fixedly connected with a plurality of damping pads 2 of fly leaf 3, be equipped with the stick between damping pad 2 upper surface and the lower surface of bridge board 1, damping pad 2 glues through the stick with bridge board 1, and damping pad 2 can play preliminary buffering's effect when bridge vibration. The two sides of the movable plate 3 are symmetrically connected with a plurality of connecting columns 4. The connecting column 4 is in an inverted L shape, the horizontal end of the connecting column 4 is connected with the side edge of the movable plate 3, and the vertical end of the connecting column 4 is welded with the upper surface of the movable cylinder 66 on the shock absorption component 6.
The shock absorbing assembly 6 is shown in fig. 2 and comprises a movable cylinder 66, and the movable cylinder 66 is sleeved on the stud 65 in a sliding manner. The U-shaped steel plate 61 is opened upward and its bottom wall is fixedly connected to both sides of the upper surface of the bottom plate 5 by bolts. The two inner side walls of the U-shaped steel plate 61 are respectively provided with a sliding groove 62, two sliding plates 63 are respectively and slidably connected in the sliding grooves 62, and the middle parts of the opposite surfaces of the two sliding plates 63 are provided with bolt grooves 64. The stud 65 is slidably connected at both ends to the stud grooves 64. Meanwhile, hexagonal flat nuts 67 are arranged on threads at two ends of the stud 65, limiting rings 69 are welded at two ends of the movable barrel 66, limiting rings 69 are also arranged on one side, facing the surface of the movable barrel 66, of the hexagonal flat nuts 67, a pressure spring 68 is sleeved on the stud 65 between the two limiting rings 69 at two sides of the movable barrel 66, and two ends of the pressure spring 68 are abutted against the surfaces of the corresponding limiting rings 69. When the movable plate 3 moves downwards under vibration, the connecting column 4 pushes the movable cylinder 66 to move downwards, and the sliding plate 63 can move downwards by virtue of the sliding groove 62 on the inner side wall of the U-shaped steel plate 61 until the energy of the vertical vibration is buffered by the buffer component 8. And the pressure spring 68 can offset transverse micro-vibration, so that the condition of transverse displacement of the bridge caused by earthquake is avoided, the stability of the bridge anti-seismic support is improved, the bridge pier body is uniformly stressed, and the service life of the bridge anti-seismic support is prolonged.
As shown in fig. 3, the lower surface of the movable plate 3 is connected with the upper surface of the bottom plate 5 by a plurality of identical buffer assemblies, and the buffer assembly 7 is composed of a fixed block 71, a spring 72, a slide block 73, a guide shaft 74, a telescopic column 75, a top seat 76 and a connecting rod 77. The top surface of telescopic column 75 and the lower fixed surface of fly leaf 3 are connected, the bottom surface of telescopic column 75 and the upper fixed surface of bottom plate 5 are connected, and fixedly connected with two symmetrical fixed blocks 71 on the bottom plate 5 of telescopic column 75 both sides respectively, and be connected with guiding axle 74 between two fixed blocks 71, be equipped with slider 73 on the guiding axle 74, slider 73 lower surface and the spout sliding connection of bottom plate 5 upper surface, and the cover has spring 72 on the guiding axle 4 between the fixed block 71 that keeps away from telescopic column 75 and slider 73, the surface welding that telescopic column 75 is close to the top has footstock 76, footstock 76 both ends respectively with the one end fixed connection of connecting rod 77, the other end of connecting rod 77 articulates with the top of adjacent slider 73, when fly leaf 3 atress, push down footstock 76 makes telescopic column 75 retract, drive two connecting rods 77 and promote two slider 73 to do the motion that leaves, thereby slider 73 compresses the spring 72 on the guiding axle 74, spring 72 converts the vertical kinetic energy of telescopic column 75 into the potential energy of spring 72, thereby reach the effect of shock-resistant, thereby the stability of bridge plate 1 has been ensured effectively comprehensively.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly and include, for example, "connected," either permanently connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (3)
1. The utility model provides a bridge anti-seismic device, includes bridge board (1), its characterized in that: the bottom surface of the bridge plate (1) is connected with the movable plate (3) through a group of damping pads (2); two sides of the movable plate (3) are connected with the shock absorption component (6) through a group of connecting columns (4) uniformly distributed along the length direction of the bridge plate (1); the bottom surface of the movable plate (3) is connected with a pair of symmetrically arranged buffer components (7); the bottom surface of the damping component (6) and the damping component (7) are connected with the bottom plate (5); the damping component (6) comprises a U-shaped steel plate (61), the opening of the U-shaped steel plate (61) is upward, and the bottom surface of the U-shaped steel plate (61) is connected with the bottom plate (5) through bolts; sliding grooves (62) are formed in the inner walls of the two sides of the U-shaped steel plate (61), sliding plates (63) are arranged in the sliding grooves (62), and the sliding plates (63) are in sliding connection with the sliding grooves (62); the opposite surfaces of the two sliding plates are provided with bolt grooves (64); the bolt grooves (64) of the two sliding plates are connected through a stud (65), a movable cylinder (66) is sleeved on the stud (65), and the top of the movable cylinder (66) is connected with the connecting column (4); a hexagonal flat nut (67) is arranged at the position of the stud (65) close to the sliding plate (63); a compression spring (68) is sleeved on the stud (65), and limiting rings (69) are arranged at two ends of the compression spring (68); the buffer component (7) comprises a top seat (76) with the top connected with the movable plate (3); the bottom of the top seat (76) is connected with the bottom plate (5) through a telescopic column (75); two ends of the top seat (76) are hinged with the sliding block (73) through a connecting rod (77), and one side of the sliding block (73) is connected with the fixed block (71) through a spring (72); the guide hole on the slide block (73) is connected with the guide shaft (74) in a sliding way.
2. The bridge seismic apparatus of claim 1, wherein: the top surface of the damping pad (2) is provided with glue bars which are uniformly distributed, and the damping pad (2) is connected with the bottom surface of the bridge plate (1) through the glue bars.
3. The bridge seismic apparatus of claim 1, wherein: the connecting column (4) is of an inverted L structure, the horizontal end of the inverted L structure is connected with the side edge of the movable plate (3), and the vertical end of the inverted L structure is connected with the shock absorption component (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558136.9A CN109914225B (en) | 2018-12-19 | 2018-12-19 | Bridge anti-seismic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558136.9A CN109914225B (en) | 2018-12-19 | 2018-12-19 | Bridge anti-seismic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109914225A CN109914225A (en) | 2019-06-21 |
| CN109914225B true CN109914225B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558136.9A Active CN109914225B (en) | 2018-12-19 | 2018-12-19 | Bridge anti-seismic device |
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| CN (1) | CN109914225B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392907A (en) * | 2019-08-12 | 2021-02-23 | 华龙国际核电技术有限公司 | Anti-seismic support |
| CN110608262B (en) * | 2019-10-14 | 2024-03-12 | 无锡能电动力科技有限公司 | Damping base of generator set |
| CN113969541A (en) * | 2020-07-24 | 2022-01-25 | 上海通亿橡塑制品有限公司 | Damping support for road and bridge |
| CN112695611A (en) * | 2020-12-30 | 2021-04-23 | 朱锋 | Bridge ductile earthquake-resistant structure easy to replace after earthquake |
| CN113623358B (en) * | 2021-10-12 | 2021-12-10 | 睿丰自动化科技海门有限公司 | Mechanical equipment antidetonation frame of high stability |
| CN114016396B (en) * | 2021-11-30 | 2023-05-12 | 重庆交通职业学院 | Combined supporting structure for transverse earthquake resistance of three-span bridge |
| CN114990986B (en) * | 2022-04-28 | 2024-05-07 | 徐亚飞 | Anti-seismic device for bridge |
| CN114622479B (en) * | 2022-04-28 | 2023-11-24 | 中筑(深圳)设计院有限公司 | Anti-seismic beam group based on ultra-high performance concrete UHPC and design method |
| CN114855595B (en) * | 2022-05-24 | 2024-05-14 | 北京博知川科技服务有限公司 | Steel bridge structure with multiple buffering and damping mechanisms |
| CN114893002A (en) * | 2022-06-22 | 2022-08-12 | 中国建筑第二工程局有限公司 | Recyclable construction channel structure for lined villas and construction method thereof |
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| JP2016118008A (en) * | 2014-12-19 | 2016-06-30 | 西日本高速道路株式会社 | Structural vibration control device, method for removing residual displacement of superstructure using the same and bridge reinforcement method |
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| CN207727418U (en) * | 2018-01-16 | 2018-08-14 | 毛芳山 | A kind of bridge girder anti-seismic bearing |
| CN108468269A (en) * | 2018-04-12 | 2018-08-31 | 淄博正邦知识产权企划有限公司 | A kind of bridge antidetonation pedestal and its anti-shock methods |
| CN209397478U (en) * | 2018-12-19 | 2019-09-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Bridge anti-seismic device |
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2018
- 2018-12-19 CN CN201811558136.9A patent/CN109914225B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016118008A (en) * | 2014-12-19 | 2016-06-30 | 西日本高速道路株式会社 | Structural vibration control device, method for removing residual displacement of superstructure using the same and bridge reinforcement method |
| CN206873279U (en) * | 2017-05-11 | 2018-01-12 | 张莉 | A kind of bridge girder anti-seismic bearing |
| CN207727418U (en) * | 2018-01-16 | 2018-08-14 | 毛芳山 | A kind of bridge girder anti-seismic bearing |
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| CN109914225A (en) | 2019-06-21 |
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