CN114990986B - Anti-seismic device for bridge - Google Patents
Anti-seismic device for bridge Download PDFInfo
- Publication number
- CN114990986B CN114990986B CN202210470541.5A CN202210470541A CN114990986B CN 114990986 B CN114990986 B CN 114990986B CN 202210470541 A CN202210470541 A CN 202210470541A CN 114990986 B CN114990986 B CN 114990986B
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- Prior art keywords
- seismic
- bridge
- fixedly connected
- bridge column
- buffer
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- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses an anti-seismic device for a bridge, which belongs to the technical field of bridges and comprises a fixed cylinder, wherein a bridge column is movably connected in the fixed cylinder, the outer part of the bridge column is sleeved with the anti-seismic device, a plurality of anti-seismic plates are arranged in the anti-seismic device, and a triggering structure is also arranged in the anti-seismic device. According to the invention, when the bridge column is stressed, the bridge column moves towards the inside of the fixed cylinder, the connecting rod is driven to move downwards through the fixed ring when the bridge column moves, the trigger block is driven to rotate on the sliding rod when the connecting rod moves downwards, the trigger block contacts with the limiting block when rotating, along with the mutual contact of the trigger block and the upper inclined surface of the limiting block, the two trigger blocks move towards the direction away from the limiting block, the trigger block pushes the plurality of anti-seismic plates to move when moving towards the direction away from the limiting block, the plurality of anti-seismic plates are gradually close in the process of being pushed by the trigger block, and the plurality of anti-seismic plates squeeze the buffer sleeve when being close to each other, so that the anti-seismic effect is achieved.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to an anti-seismic device for a bridge.
Background
The bridge is a structure which is erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like, and along with the development of transportation industry and the improvement of building engineering standards, the support not only plays a supporting role in the bridge and other engineering, but also has the functions of vibration reduction and earthquake resistance.
Chinese patent discloses a public road bridge anti-seismic device (grant bulletin number CN 214783205U), this patent is through the shock attenuation board bottom movable mounting in the loop bar inside, and the loop bar inside fixed mounting of interior pole bottom has first spring, play main cushioning effect to the stress that reduces bridge vibrations to the pier through shock attenuation rubber and second spring cooperation, thereby move about in the loop bar and assist the shock attenuation through first spring and interior pole cooperation, through loop board and third spring cooperation, move about in the inside of loop board, increase the shock attenuation effect, but this patent is only simple to utilize spring structure to cushion, and simple utilization spring structure is to the bridge shock attenuation far from enough, and the spring is too much can increase the vibration amplitude of bridge moreover, probably can play the reaction. Accordingly, the present invention provides an anti-seismic device for bridges to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an anti-seismic device for a bridge, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a bridge is with anti-seismic device, includes a fixed section of thick bamboo, swing joint has the bridge post in the fixed section of thick bamboo, the outside cover of bridge post is equipped with anti-seismic device, anti-seismic device's internally mounted has a plurality of shock-proof plates, still install trigger structure in the anti-seismic device, bridge post accessible trigger structure triggers the shock-proof plate to carry out the shock attenuation to the bridge post through the shock-proof plate.
As a further scheme of the invention, a plurality of limiting plates are fixedly connected to the outer wall of the bridge column, a plurality of limiting grooves are further formed in the inner wall of the fixed cylinder, and the limiting plates are in sliding connection with the fixed cylinder through the limiting grooves.
As a still further scheme of the invention, the anti-seismic device comprises two anti-seismic boxes, wherein the outer wall of the fixed cylinder is fixedly connected with a lower fixed plate, the anti-seismic boxes are connected with the lower fixed plate through bolts, an upper fixed plate is sleeved outside the bridge column, and the two anti-seismic boxes are connected with the upper fixed plate through bolts.
As a still further scheme of the invention, an installation bin is arranged in the earthquake resistant box, the earthquake resistant plate and the triggering structure are both positioned in the installation bin, two installation rods are movably connected in the earthquake resistant box, the earthquake resistant plate is sleeved on the installation rods, and a plurality of buffer sleeves are sleeved on the earthquake resistant plate.
As a still further scheme of the invention, the middle part of the installation rod is fixedly connected with a sliding rod, the triggering structure comprises two limiting blocks, the limiting blocks are fixed on the sliding rod, inclined surfaces are arranged at one ends of the two limiting blocks, which are far away from each other, of the two limiting blocks, two triggering blocks are also movably connected on the sliding rod, and inclined surfaces are arranged at one ends of the two triggering blocks, which are close to the limiting blocks.
As a still further scheme of the invention, the outer part of the trigger block is fixedly connected with a connecting ring, the outer part of the connecting ring is fixedly connected with a connecting rod, and one end of the connecting rod, which is far away from the trigger block, is movably connected with the bridge column.
As a still further scheme of the invention, the bridge column is externally sleeved with two fixing rings, a plurality of mounting ports are respectively formed in the two fixing rings, a rotating shaft is rotatably connected in the mounting ports, the connecting rod is sleeved on the rotating shaft, and the connecting rod is in sliding connection with the rotating shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. when the anti-seismic bridge is used, when the bridge column is subjected to longitudinal force, the bridge column moves towards the inside of the fixed cylinder, the connecting rod is driven to move downwards through the fixed ring when the bridge column moves, the trigger block is driven to rotate on the sliding rod when the connecting rod moves downwards, the trigger block contacts with the limiting block when the trigger block rotates, along with the mutual contact of the inclined surfaces on the trigger block and the limiting block, the two trigger blocks move towards the direction away from the limiting block, the trigger block pushes the plurality of anti-seismic plates to move towards the direction away from the limiting block, the plurality of anti-seismic plates are gradually close in the process that the anti-seismic plates are pushed by the trigger block, and the buffer sleeve is extruded when the plurality of anti-seismic plates are close to each other, so that the anti-seismic effect is achieved.
2. When the anti-seismic box is used, the connecting rod can push the mounting rod through the triggering block when the bridge column is subjected to transverse force, the mounting rod can drive the plurality of anti-seismic plates to move towards the inner wall of the anti-seismic box when being pushed, the buffer sleeve can be contacted with the inner wall of the anti-seismic box during the movement of the anti-seismic plates, and the buffer sleeve can be extruded when being contacted with the anti-seismic box, so that the anti-seismic buffer effect is achieved.
Drawings
Fig. 1 is a schematic structural view of an earthquake-resistant apparatus for a bridge.
Fig. 2 is a split view of an earthquake-resistant apparatus for a bridge.
Fig. 3 is a disassembled view of a buffer seat in the anti-seismic device for the bridge.
Fig. 4 is an internal structural view of an earthquake resistant housing in the earthquake resistant apparatus for a bridge.
Fig. 5 is an installation view of a seismic panel in a seismic apparatus for a bridge.
Fig. 6 is a disassembled view of the earthquake-resistant plate in the earthquake-resistant apparatus for the bridge.
Fig. 7 is a structural diagram of a trigger structure and a mounting rod in an earthquake-resistant apparatus for a bridge.
Fig. 8 is a disassembled view of a triggering structure in the anti-seismic device for the bridge.
In the figure: 1. a fixed cylinder; 2. a bridge column; 3. a limiting plate; 4. a limit groove; 5. a buffer seat; 6. a cushion pad; 7. a strong spring; 8. a sleeve; 9. a push rod; 10. a buffer spring; 11. a fixing ring; 12. a mounting port; 13. an anti-vibration device; 130. a lower fixing plate; 131. an upper fixing plate; 132. an earthquake-proof box; 133. a mounting bin; 134. a mounting rod; 135. an anti-vibration plate; 136. a buffer sleeve; 137. a slide bar; 138. a trigger block; 139. a limiting block; 140. a connecting ring; 141. a connecting rod; 142. and a mounting groove.
Detailed Description
Embodiment one:
referring to fig. 1-3, in the embodiment of the invention, an anti-seismic device for a bridge comprises a fixed cylinder 1, wherein a bridge column 2 is movably connected in the fixed cylinder 1, a plurality of limiting plates 3 are fixedly connected to the outer wall of the bridge column 2, a plurality of limiting grooves 4 are further formed in the inner wall of the fixed cylinder 1, the limiting grooves 4 correspond to the limiting plates 3, the limiting plates 3 are positioned in the limiting grooves 4, the limiting plates 3 are slidably connected with the fixed cylinder 1 through the limiting grooves 4, a buffer seat 5 is fixedly connected to the inner bottom end of the fixed cylinder 1, the buffer seat 5 comprises two buffer pads 6, a strong spring 7 is fixedly connected between the two buffer pads 6, a plurality of sleeves 8 are fixedly connected between the two buffer pads 6, a push rod 9 is slidably connected in the sleeves 8, a buffer spring 10 is fixedly connected to the inner bottom end of the sleeves 8, one end of each buffer spring 10 is fixedly connected with each push rod 9, one end of each push rod 9 positioned outside each sleeve 8 is fixedly connected with each buffer pad 6, a plurality of anti-seismic devices 13 are sleeved outside the bridge column 2, a plurality of shock-proof plates 135 are mounted in the anti-seismic device 13, a trigger structure is further mounted in each anti-seismic device 13, and the trigger structure 135 is further mounted in each anti-seismic device 13, and the trigger structure can trigger the bridge column 2 through the bridge column 2.
Embodiment two:
Referring to fig. 4-8, in combination with the foundation of embodiment 1, the anti-seismic device 13 includes two anti-seismic boxes 132, a lower fixing plate 130 is fixedly connected to the outer wall of the fixing barrel 1, the anti-seismic boxes 132 are connected with the lower fixing plate 130 through bolts, two mounting grooves 142 are formed in the lower fixing plate 130, the two mounting grooves 142 respectively correspond to the anti-seismic boxes 132, an upper fixing plate 131 is sleeved outside the bridge column 2, the upper fixing plate 131 includes two arc plates, the two arc plates are mutually matched and connected through steel plates and bolts, and the two anti-seismic boxes 132 are connected with the upper fixing plate 131 through bolts;
The inside of the anti-seismic box 132 is provided with a mounting bin 133, an anti-seismic plate 135 and a triggering structure are both positioned in the mounting bin 133, two mounting rods 134 are movably connected in the anti-seismic box 132, the two mounting rods 134 are both positioned in the mounting bin 133, the two mounting rods 134 are arranged in an arc shape, the inner wall of the anti-seismic box 132 is provided with a connecting port, the two ends of the mounting rods 134 are respectively positioned in the connecting port, the connecting port is rectangular, the caliber of the connecting port is larger than the outer diameter of the mounting rods 134, namely the mounting rods 134 can simply move in the connecting port, the anti-seismic plate 135 is sleeved on the mounting rods 134, two sliding windows are formed in the anti-seismic plate 135, the mounting rods 134 pass through the anti-seismic plate 135 through the sliding windows, the anti-seismic plate 135 is in sliding connection with the mounting rods 134, and a plurality of buffer sleeves 136 are sleeved on the anti-seismic plate 135;
The middle part of the mounting rod 134 is fixedly connected with a slide bar 137, the triggering structure comprises two limiting blocks 139, the limiting blocks 139 are fixed on the slide bar 137, inclined surfaces are arranged at the ends of the two limiting blocks 139, which are far away from each other, two triggering blocks 138 are movably connected to the slide bar 137, the two triggering blocks 138 are respectively positioned at the sides of the two limiting blocks 139, which are far away from each other, inclined surfaces are arranged at the ends of the two triggering blocks 138, which are close to the limiting blocks 139, the outer parts of the triggering blocks 138 are fixedly connected with connecting rings 140, connecting rods 141 are fixedly connected to the outer parts of the connecting rings 140, and one ends of the connecting rods 141, which are far away from the triggering blocks 138, are movably connected with bridge columns 2;
The outside cover of bridge column 2 is equipped with two solid fixed rings 11, has all seted up a plurality of installing ports 12 on two solid fixed rings 11, and the width of installing port 12 is greater than the thickness of connecting rod 141, and the inside rotation of installing port 12 is connected with the axis of rotation, and connecting rod 141 cover is established in the pivot, and connecting rod 141 and pivot sliding connection.
The working principle of the invention is as follows:
When the bridge column 2 is subjected to longitudinal force, the bridge column 2 moves towards the inside of the fixed cylinder 1, the connecting rod 141 is driven to move downwards through the fixed ring 11 when the bridge column 2 moves, the connecting rod 141 drives the trigger block 138 to rotate on the sliding rod 137 when moving downwards, the trigger block 138 contacts with the limiting block 139 when rotating, along with the mutual contact of the inclined surfaces on the trigger block 138 and the limiting block 139, the two trigger blocks 138 move away from the limiting block 139, the trigger block 138 pushes the plurality of shock-resistant plates 135 to move when moving away from the limiting block 139, the plurality of shock-resistant plates 135 gradually approach each other in the process of pushing the shock-resistant plates 135 by the trigger block 138, the plurality of shock-resistant plates 135 push the buffer sleeve 136 to play a role of shock resistance when approaching each other, and the connecting rod 141 pushes the mounting rod 134 through the trigger block 138 when the bridge column 2 is subjected to transverse force, the plurality of shock-resistant plates 135 are driven to move towards the inner wall of the shock-resistant box 132 when the mounting rod 134 is pushed, the buffer sleeve 136 contacts with the inner wall of the shock-resistant box 132 when the trigger block 135 moves, and the buffer sleeve 136 contacts with the inner wall of the shock-resistant box 132, and thus the shock-resistant sleeve is pressed.
Claims (2)
1. The utility model provides a bridge is with antidetonation device, includes fixed section of thick bamboo (1), its characterized in that, fixed section of thick bamboo (1) internal activity is connected with bridge column (2), the outside cover of bridge column (2) is equipped with antidetonation device (13), the internally mounted of antidetonation device (13) has a plurality of antidetonation boards (135), still install trigger structure in antidetonation device (13), bridge column (2) accessible trigger antidetonation board (135) to through antidetonation board (135) to bridge column (2) shock attenuation;
The inner bottom end of the fixed cylinder (1) is fixedly connected with a buffer seat (5), the buffer seat (5) comprises two buffer cushions (6), a powerful spring (7) is fixedly connected between the two buffer cushions (6), a plurality of sleeves (8) are fixedly connected between the two buffer cushions (6), a push rod (9) is slidably connected in the sleeves (8), a buffer spring (10) is fixedly connected at the inner bottom end of the sleeve (8), one end of the buffer spring (10) is fixedly connected with the push rod (9), and one end of the push rod (9) positioned outside the sleeve (8) is fixedly connected with the buffer cushions (6);
The anti-seismic device (13) comprises two anti-seismic boxes (132), wherein a lower fixing plate (130) is fixedly connected to the outer wall of the fixed cylinder (1), the anti-seismic boxes (132) are connected with the lower fixing plate (130) through bolts, an upper fixing plate (131) is sleeved outside the bridge column (2), and the two anti-seismic boxes (132) are connected with the upper fixing plate (131) through bolts;
The anti-seismic box is characterized in that an installation bin (133) is formed in the anti-seismic box (132), the anti-seismic plate (135) and the triggering structure are both located in the installation bin (133), two installation rods (134) are movably connected in the anti-seismic box (132), the anti-seismic plate (135) is sleeved on the installation rods (134), and a plurality of buffer sleeves (136) are sleeved on the anti-seismic plate (135);
The middle part of the installation rod (134) is fixedly connected with a sliding rod (137), the triggering structure comprises two limiting blocks (139), the limiting blocks (139) are fixed on the sliding rod (137), inclined surfaces are arranged at the ends, far away from each other, of the two limiting blocks (139), two triggering blocks (138) are further movably connected onto the sliding rod (137), and inclined surfaces are arranged at the ends, close to the limiting blocks (139), of the two triggering blocks (138);
The outer part of the trigger block (138) is fixedly connected with a connecting ring (140), a connecting rod (141) is fixed outside the connecting ring (140), and one end of the connecting rod (141) away from the trigger block (138) is movably connected with the bridge column (2);
The bridge column is characterized in that two fixing rings (11) are sleeved outside the bridge column (2), a plurality of mounting ports (12) are formed in the fixing rings (11), a rotating shaft is connected to the inside of each mounting port (12) in a rotating mode, a connecting rod (141) is sleeved on the rotating shaft, and the connecting rod (141) is connected with the rotating shaft in a sliding mode.
2. The anti-seismic device for the bridge according to claim 1, wherein a plurality of limiting plates (3) are fixedly connected to the outer wall of the bridge column (2), a plurality of limiting grooves (4) are further formed in the inner wall of the fixed cylinder (1), and the limiting plates (3) are slidably connected with the fixed cylinder (1) through the limiting grooves (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470541.5A CN114990986B (en) | 2022-04-28 | 2022-04-28 | Anti-seismic device for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470541.5A CN114990986B (en) | 2022-04-28 | 2022-04-28 | Anti-seismic device for bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114990986A CN114990986A (en) | 2022-09-02 |
| CN114990986B true CN114990986B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210470541.5A Active CN114990986B (en) | 2022-04-28 | 2022-04-28 | Anti-seismic device for bridge |
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| Country | Link |
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| CN (1) | CN114990986B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101575743B1 (en) * | 2014-06-20 | 2015-12-11 | 한국철도공사 | Vibration damper utilizing wedges |
| CN109024259A (en) * | 2018-09-27 | 2018-12-18 | 北方民族大学 | A kind of bridge girder anti-seismic bearing |
| CN109826087A (en) * | 2019-02-23 | 2019-05-31 | 赵树青 | A kind of bridge earthquake resistance device buffering energy dissipating |
| CN109914225A (en) * | 2018-12-19 | 2019-06-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Bridge anti-seismic device |
| CN113863120A (en) * | 2021-10-18 | 2021-12-31 | 重庆交通大学 | High-damping self-resetting energy dissipation type shock absorption support and shock absorption bridge |
| CN215976817U (en) * | 2021-11-01 | 2022-03-08 | 吕文博 | Damping device for bridge |
-
2022
- 2022-04-28 CN CN202210470541.5A patent/CN114990986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101575743B1 (en) * | 2014-06-20 | 2015-12-11 | 한국철도공사 | Vibration damper utilizing wedges |
| CN109024259A (en) * | 2018-09-27 | 2018-12-18 | 北方民族大学 | A kind of bridge girder anti-seismic bearing |
| CN109914225A (en) * | 2018-12-19 | 2019-06-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Bridge anti-seismic device |
| CN109826087A (en) * | 2019-02-23 | 2019-05-31 | 赵树青 | A kind of bridge earthquake resistance device buffering energy dissipating |
| CN113863120A (en) * | 2021-10-18 | 2021-12-31 | 重庆交通大学 | High-damping self-resetting energy dissipation type shock absorption support and shock absorption bridge |
| CN215976817U (en) * | 2021-11-01 | 2022-03-08 | 吕文博 | Damping device for bridge |
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| Publication number | Publication date |
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| CN114990986A (en) | 2022-09-02 |
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