CN110863423B - Bridge butt joint anti-seismic device - Google Patents
Bridge butt joint anti-seismic device Download PDFInfo
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- CN110863423B CN110863423B CN201911186756.9A CN201911186756A CN110863423B CN 110863423 B CN110863423 B CN 110863423B CN 201911186756 A CN201911186756 A CN 201911186756A CN 110863423 B CN110863423 B CN 110863423B
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- sliding
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- seismic
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- 210000001503 joint Anatomy 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 230000003139 buffering effect Effects 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000703 anti-shock Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a bridge butt joint anti-seismic device, and belongs to the technical field of bridge anti-seismic. A bridge butt joint anti-seismic device, comprising: bridge, bridge base, blotter, bridge pillar still include: the first anti-seismic mechanism, the second anti-seismic mechanism and the third anti-seismic mechanism are arranged between the bridge base and the cushion pad and used for buffering the displacement of the bridge and reducing the vibration of the bridge, a plurality of first anti-seismic mechanisms, a plurality of second anti-seismic mechanisms and a plurality of third anti-seismic mechanisms are uniformly arranged at intervals, and the first anti-seismic mechanisms comprise third slide blocks arranged on the top surface of the cushion pad.
Description
Technical Field
The invention belongs to the technical field of bridge seismic resistance, and particularly relates to a bridge butt joint seismic resistance device.
Background
Earthquake can produce destruction to the bridge, so current bridge is combatted earthquake through additional strengthening intensity, some bridges though can bear the vibration that the earthquake brought on structural strength, but because bridge upper portion, substructure connection are not firm, cause the wholeness poor, often can cause and produce too big relative displacement between bridge upper portion and substructure, thereby produce destruction to the bridge, the damping device of present bridge lacks the wholeness, make bridge beam supports not good with the wholeness of bridge, the performance shock-absorbing function that can not be fine.
Disclosure of Invention
The invention aims to solve the problem of poor anti-seismic performance of a bridge, and provides a bridge butt joint anti-seismic device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bridge butt joint anti-seismic device, comprising: bridge, bridge base, blotter, bridge pillar still include: set up first antidetonation mechanism, second antidetonation mechanism, third antidetonation mechanism between bridge base and blotter, first antidetonation mechanism, second antidetonation mechanism and third antidetonation mechanism be used for the displacement of buffering bridge and reduce the vibrations of bridge, first antidetonation mechanism, second antidetonation mechanism and third antidetonation mechanism even interval be provided with a plurality of.
Preferably, the first anti-seismic mechanism comprises a third slide block arranged on the top surface of the buffer cushion, the top surface of the third slide block is provided with a plurality of first T-shaped blocks which are parallel to each other and are uniformly arranged at intervals, the first T-shaped blocks and the third slide block are fixed into a whole, each first T-shaped block comprises a first vertical plate which is perpendicular to the third slide block and is connected with the top surface of the third slide block, and a first horizontal plate which is arranged on the top surface of the first vertical plate and is parallel to the third slide block, one side of the first horizontal plate in the width direction is provided with a through hole which penetrates through the wall thickness of the first horizontal plate, a first damping column is arranged in the through hole in a matching manner, the top surface of the third slide block is connected with a second slide block in a sliding manner, the bottom surface of the second slide block is provided with a T-shaped chute which is matched with the first T-shaped block, the first T-shaped block can slide along the guide direction of the T-shaped chute, the top surface of the second slide block is movably connected with the first slide block, the bottom surface of the first slide block is provided with a plurality of the second T-shaped blocks which are parallel to each other, the extension direction of the second T-shaped block is perpendicular to the length direction of the first T-shaped block, the top surface of the second sliding block is provided with a T-shaped guide groove matched with the second T-shaped block, the second T-shaped block is provided with a second damping column, the connection relation between the second damping column and the second T-shaped block is consistent with the connection relation between the first damping column and the first T-shaped block, the bottom surface of the third sliding block is welded with the top surface of the cushion pad, and the top surface of the first sliding block is welded with the bottom surface of the bridge base.
Preferably, the second anti-seismic mechanism comprises a bottom plate in threaded connection with the top surface of the cushion pad and a top plate in threaded connection with the bottom surface of the bridge base, the top plate and the bottom plate are horizontally arranged, the area of the bottom plate is larger than that of the top plate, the top plate is located right above the bottom plate, four compression springs are arranged between the top plate and the bottom plate, the top ends of the four compression springs are connected with the center of the bottom surface of the top plate, and the bottom ends of the four compression springs are connected with the top surface of the bottom plate and are respectively arranged on four sides of the top surface of the bottom plate.
Preferably, the third anti-seismic mechanism comprises a connecting plate which is horizontally arranged and is in threaded connection with the bottom surface of the bridge base, a vertical rod which vertically extends downwards is arranged at the center of the bottom surface of the connecting plate, four slide rods which radially extend along the vertical rod are uniformly arranged at intervals along the circumferential direction at the bottom of the circumferential surface of the vertical rod, a fixed sleeve ring is coaxially sleeved at the suspension end of each slide rod, the fixed sleeve ring is fixedly connected with the slide rods, a slide sleeve ring is coaxially sleeved at one end, close to the vertical rod, of each slide rod, the slide sleeve ring is movably connected with the slide rod, a fixed seat which is in sliding connection with the top surface of the buffer cushion is arranged at the bottom of the slide sleeve ring, the axial direction of each slide rod, perpendicular to the extending direction of the fixed seat, a guide chute matched with the fixed seat is arranged on the top surface of the buffer cushion, the guide direction of the guide chute is parallel to the extending direction of the fixed seat, a spiral spring is coaxially sleeved outside the slide rod, and the spiral spring is arranged between the slide sleeve ring and the fixed sleeve ring, one end of the spiral spring is connected with the fixed lantern ring, and the other end of the spiral spring is connected with the sliding lantern ring.
Preferably, the cushion pad is composed of a steel plate and rubber, and the top surface of the cushion pad is the steel plate.
Compared with the prior art, the invention provides a bridge butt joint anti-seismic device, which has the following beneficial effects:
1. when an earthquake occurs, the bridge and the buffer pad shake, the bridge drives the first sliding block to shake, the first sliding block slides along the guide direction of the T-shaped guide groove or drives the second sliding block to slide along the guide direction of the T-shaped sliding groove, the first damping column performs friction buffering on the motion of the second sliding block and the second damping column performs friction buffering on the motion of the first sliding block in the sliding process of the first sliding block and the second sliding block, so that the aim of buffering the shake of the bridge is fulfilled, the integrity of the bridge and a bridge strut is improved, and the integrity of the bridge is favorably kept.
2. When an earthquake occurs, the vibration of the bridge is transmitted to the compression springs through the top plate, no matter which side of the bridge is in the shaking direction, the bridge can be buffered by the at least three compression springs, and the shaking in the vertical direction can be buffered by the four compression springs, so that the buffering of multidirectional vibration is improved.
3. When an earthquake occurs, the shaking of the bridge is transmitted to the connecting plate through the bridge base, the connecting plate transmits the shaking to the sliding rod through the vertical rod, the sliding rod moves back and forth along the axial direction of the sliding rod, the sliding rod extrudes the spiral spring or stretches the spiral spring through the fixing lantern ring to achieve the purpose of buffering vibration, the stability of the bridge is improved, and when the sliding rod slides, the fixing seat parallel to the sliding rod slides along the guide direction of the guide sliding groove.
Drawings
FIG. 1 is a schematic diagram of an application scenario of the present invention;
FIG. 2 is a schematic diagram of an application scenario of the present invention;
FIG. 3 is a schematic structural view of a first anti-seismic mechanism of the present invention;
FIG. 4 is a schematic structural view of a first anti-seismic mechanism of the present invention;
FIG. 5 is a schematic structural view of a first anti-seismic mechanism of the present invention;
FIG. 6 is a schematic structural view of a first anti-seismic mechanism of the present invention;
FIG. 7 is a schematic structural diagram of a second anti-vibration mechanism according to the present invention;
fig. 8 is a schematic structural view of a third anti-seismic mechanism of the present invention.
The reference numbers in the figures illustrate:
10. a first anti-seismic mechanism; 110. a first slider; 111. a second T-shaped block; 112. a second damping column; 120. a second slider; 121. a T-shaped guide groove; 122. a T-shaped chute; 130. a third slider; 131. a first T-shaped block; 132. a first damping column; 20. a second anti-seismic mechanism; 210. a top plate; 220. a base plate; 230. a compression spring; 30. a third anti-seismic mechanism; 310. a connecting plate; 320. a vertical rod; 330. a slide bar; 340. a fixed collar; 350. a coil spring; 360. a slip collar; 370. a fixed seat; 40. a bridge foundation; 50. a bridge; 60. a cushion pad; 70. provided is a bridge strut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 8, a bridge butt joint anti-seismic device includes: bridge 50, bridge foundation 40, blotter 60, bridge strut 70, still include: the first anti-seismic mechanism 10, the second anti-seismic mechanism 20 and the third anti-seismic mechanism 30 are arranged between the bridge base 40 and the cushion 60, the first anti-seismic mechanism 10, the second anti-seismic mechanism 20 and the third anti-seismic mechanism 30 are used for buffering the displacement of the bridge 50 and reducing the vibration of the bridge 50, and the first anti-seismic mechanism 10, the second anti-seismic mechanism 20 and the third anti-seismic mechanism 30 are uniformly arranged at intervals and are provided with a plurality of parts.
The first anti-seismic mechanism 10 comprises a third sliding block 130 arranged on the top surface of the buffer pad 60, the top surface of the third sliding block 130 is provided with a plurality of first T-shaped blocks 131 which are parallel to each other and are uniformly arranged at intervals, the first T-shaped blocks 131 and the third sliding block 130 are fixed into a whole, each first T-shaped block 131 comprises a first vertical plate which is perpendicular to the third sliding block 130 and is connected with the top surface of the third sliding block 130, a first horizontal plate which is arranged on the top surface of the first vertical plate and is parallel to the third sliding block 130, one side of the first horizontal plate in the width direction is provided with a through hole which penetrates through the wall thickness of the first horizontal plate, a first damping column 132 is arranged in the through hole in a matching manner, the top surface of the third sliding block 130 is connected with a second sliding block 120 in a sliding manner, the bottom surface of the second sliding block 120 is provided with a T-shaped sliding groove 122 which is matched with the first T-shaped block 131, the first T-shaped block 131 can slide along the guiding direction of the T-shaped sliding groove 122, the top surface of the second sliding block 120 is movably connected with the first sliding block 110, the bottom surface of the first slider 110 is provided with a plurality of second T-shaped blocks 111 which are parallel to each other, the extending direction of the second T-shaped blocks 111 is vertical to the length direction of the first T-shaped blocks 131, the top surface of the second slider 120 is provided with T-shaped guide grooves 121 matched with the second T-shaped blocks 111, the second T-shaped blocks 111 are provided with second damping columns 112, the connection relationship between the second damping columns 112 and the second T-shaped blocks 111 is consistent with the connection relationship between the first damping columns 132 and the first T-shaped blocks 131, the bottom surface of the third slider 130 is welded with the top surface of the cushion 60, and the top surface of the first slider 110 is welded with the bottom surface of the bridge base 40; during an earthquake, the bridge 50 and the buffer pad 60 shake, the bridge 50 drives the first slider 110 to shake, the first slider 110 slides along the guide direction of the T-shaped guide groove 121 or the first slider 110 drives the second slider 120 to slide along the guide direction of the T-shaped sliding groove 122, in the sliding process of the first slider 110 and the second slider 120, the first damping column 132 performs friction buffering on the movement of the second slider 120, and the second damping column 112 performs friction buffering on the movement of the first slider 110, so that the aim of buffering the shake of the bridge 50 is fulfilled.
The second anti-shock mechanism 20 comprises a bottom plate 220 in threaded connection with the top surface of the cushion pad 60 and a top plate 210 in threaded connection with the bottom surface of the bridge pedestal 40, the top plate 210 and the bottom plate 220 are both horizontally arranged, the area of the bottom plate 220 is larger than that of the top plate 210, the top plate 210 is positioned right above the bottom plate 220, four compression springs 230 are arranged between the top plate 210 and the bottom plate 220, the top ends of the four compression springs 230 are connected with the center of the bottom surface of the top plate 210, and the bottom ends of the four compression springs 230 are connected with the top surface of the bottom plate 220 and are respectively arranged on the four sides of the top surface of the bottom plate 220; during the earthquake, the vibration of bridge 50 passes through roof 210 and transmits to compression spring 230, no matter which side of the direction of rocking of bridge 50 can both receive the buffering of at least three compression spring 230, the buffering that can receive four compression spring 230 of rocking of vertical direction helps improving the buffering to diversified vibrations.
The third anti-seismic mechanism 30 comprises a connecting plate 310 which is horizontally arranged and is in threaded connection with the bottom surface of the bridge pedestal 40, a vertical rod 320 which vertically extends downwards is arranged at the center of the bottom surface of the connecting plate 310, four sliding rods 330 which radially extend along the vertical rod 320 are uniformly arranged at intervals at the bottom of the circumferential surface of the vertical rod 320 along the circumferential direction, a fixing sleeve ring 340 is coaxially sleeved at the suspension end of each sliding rod 330, the fixing sleeve ring 340 is fixedly connected with the corresponding sliding rod 330, a sliding sleeve ring 360 is coaxially sleeved at one end, close to the corresponding vertical rod 320, of each sliding rod 330, the sliding sleeve ring 360 is movably connected with the corresponding sliding rod 330, a fixing seat 370 which is in sliding connection with the top surface of the cushion 60 is arranged at the bottom of the sliding sleeve ring 360, the axial direction of the corresponding sliding rod 330, which is vertically close to the extending direction of the fixing seat 370, a spiral spring 350 is coaxially sleeved outside the corresponding to the corresponding sliding rod 330, and the spiral spring 350 is arranged between the corresponding sliding sleeve ring 360 and the fixing seat 370 Between the lantern rings 340, one end of a spiral spring 350 is connected with the fixed lantern ring 340, and the other end of the spiral spring 350 is connected with a sliding lantern ring 360; during earthquake, the shaking of the bridge 50 is transmitted to the connecting plate 310 through the bridge base 40, the connecting plate 310 transmits the shaking to the sliding rod 330 through the vertical rod 320, the sliding rod 330 moves back and forth along the axial direction of the sliding rod 330, the sliding rod 330 extrudes the spiral spring 350 or stretches the spiral spring 350 through the fixing lantern ring 340 to achieve the purpose of buffering vibration, the stability of the bridge 50 is improved, and when the sliding rod 330 slides, the fixing seat 370 parallel to the sliding rod 330 slides along the guide direction of the guide sliding chute.
The buffer pad 60 is composed of a steel plate and rubber, and the top surface of the buffer pad 60 is the steel plate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A bridge butt joint anti-seismic device, comprising: bridge (50), bridge base (40), blotter (60), bridge pillar (70), its characterized in that still includes: the first anti-seismic mechanism (10), the second anti-seismic mechanism (20) and the third anti-seismic mechanism (30) are arranged between the bridge base (40) and the cushion pad (60), the first anti-seismic mechanism (10), the second anti-seismic mechanism (20) and the third anti-seismic mechanism (30) are used for buffering the displacement of the bridge (50) and reducing the vibration of the bridge (50), and a plurality of first anti-seismic mechanisms (10), second anti-seismic mechanisms (20) and third anti-seismic mechanisms (30) are uniformly arranged at intervals;
the first anti-seismic mechanism (10) comprises a third sliding block (130) arranged on the top surface of the cushion pad (60), the top surface of the third sliding block (130) is provided with a plurality of first T-shaped blocks (131) which are parallel to each other and are uniformly arranged at intervals, the first T-shaped blocks (131) and the third sliding block (130) are fixed into a whole, each first T-shaped block (131) comprises a first vertical plate which is perpendicular to the third sliding block (130) and is connected with the top surface of the third sliding block (130), and a first horizontal plate which is arranged on the top surface of the first vertical plate and is parallel to the third sliding block (130), one side of the first horizontal plate in the width direction is provided with a through hole which penetrates through the wall thickness of the first horizontal plate, a first damping column (132) is arranged in the through hole in a matching manner, the top surface of the third sliding block (130) is connected with a second sliding block (120) in a sliding manner, the bottom surface of the second sliding block (120) is provided with a T-shaped sliding chute (122) which is matched with the first T-shaped block (131), the first T-shaped block (131) can slide along the guiding direction of the T-shaped sliding groove (122), the top surface of the second sliding block (120) is movably connected with a first sliding block (110), a plurality of second T-shaped blocks (111) which are parallel to each other are arranged on the bottom surface of the first sliding block (110), the extending direction of the second T-shaped block (111) is vertical to the length direction of the first T-shaped block (131), the top surface of the second sliding block (120) is provided with a T-shaped guide groove (121) matched with the second T-shaped block (111), the second T-shaped block (111) is provided with a second damping column (112), the connection relationship between the second damping column (112) and the second T-shaped block (111) is consistent with the connection relationship between the first damping column (132) and the first T-shaped block (131), the bottom surface of the third sliding block (130) is welded with the top surface of the cushion pad (60), and the top surface of the first sliding block (110) is welded with the bottom surface of the bridge base (40);
the second anti-seismic mechanism (20) comprises a bottom plate (220) in threaded connection with the top surface of the cushion pad (60) and a top plate (210) in threaded connection with the bottom surface of the bridge base (40), the top plate (210) and the bottom plate (220) are both horizontally arranged, the area of the bottom plate (220) is larger than that of the top plate (210), the top plate (210) is located right above the bottom plate (220), four compression springs (230) are arranged between the top plate (210) and the bottom plate (220), the top ends of the four compression springs (230) are connected with the center of the bottom surface of the top plate (210), and the bottom ends of the four compression springs (230) are connected with the top surface of the bottom plate (220) and are respectively arranged on the four sides of the top surface of the bottom plate (220);
the third anti-seismic mechanism (30) comprises a connecting plate (310) which is horizontally arranged and is in threaded connection with the bottom surface of the bridge base (40), a vertical rod (320) which vertically extends downwards is arranged at the center of the bottom surface of the connecting plate (310), four sliding rods (330) which radially extend along the vertical rod (320) are uniformly arranged at intervals at the bottom of the circumferential surface of the vertical rod (320) along the circumferential direction, a fixed lantern ring (340) is coaxially sleeved at the suspension end of each sliding rod (330), the fixed lantern ring (340) is fixedly connected with the corresponding sliding rod (330), a sliding lantern ring (360) is coaxially sleeved at one end, close to the vertical rod (320), of each sliding rod (330), the sliding lantern ring (360) is movably connected with the corresponding sliding rod (330), a fixed seat (370) which is in sliding connection with the top surface of the cushion (60) is arranged at the bottom of the sliding lantern ring (360), the sliding rod (330) which is vertically adjacent to the extending direction of the fixed seat (370) is in the axial direction, a guide chute which is matched with the fixed seat (370) is arranged on the top surface of the cushion (60), the direction of guidance of guide spout is parallel to fixing base (370) extending direction, outside coaxial cover of slide bar (330) be equipped with coil spring (350) and coil spring (350) between slip lantern ring (360) and fixed lantern ring (340), coil spring (350) one end is connected with fixed lantern ring (340), the other end of coil spring (350) is connected with slip lantern ring (360).
2. The bridge butt joint anti-seismic device according to claim 1, characterized in that: the buffer pad (60) is composed of a steel plate and rubber, and the top surface of the buffer pad (60) is the steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186756.9A CN110863423B (en) | 2019-11-28 | 2019-11-28 | Bridge butt joint anti-seismic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186756.9A CN110863423B (en) | 2019-11-28 | 2019-11-28 | Bridge butt joint anti-seismic device |
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| Publication Number | Publication Date |
|---|---|
| CN110863423A CN110863423A (en) | 2020-03-06 |
| CN110863423B true CN110863423B (en) | 2021-12-14 |
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| CN201911186756.9A Expired - Fee Related CN110863423B (en) | 2019-11-28 | 2019-11-28 | Bridge butt joint anti-seismic device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411575B (en) * | 2020-03-16 | 2021-07-02 | 邢台路桥建设总公司 | Road and bridge shock-absorbing support and mounting method thereof |
| CN113718649A (en) * | 2021-08-21 | 2021-11-30 | 宁波金地建设有限公司 | Bridge damping support |
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| CN208563095U (en) * | 2018-07-21 | 2019-03-01 | 林鸿春 | Friction type high-damping rubber bridge damping support |
| CN209099162U (en) * | 2018-10-18 | 2019-07-12 | 卢家骥 | Multiaspect drag-resisting based on TMD pulls out Self-resetting friction support |
| CN109778722A (en) * | 2019-04-01 | 2019-05-21 | 重庆交通大学 | A kind of T-type Bridge Seismic method |
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