CN114108449A - Friction sliding energy consumption type bridge damping device for high-speed rail - Google Patents
Friction sliding energy consumption type bridge damping device for high-speed rail Download PDFInfo
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- CN114108449A CN114108449A CN202111400961.8A CN202111400961A CN114108449A CN 114108449 A CN114108449 A CN 114108449A CN 202111400961 A CN202111400961 A CN 202111400961A CN 114108449 A CN114108449 A CN 114108449A
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- 238000013016 damping Methods 0.000 title claims abstract description 130
- 238000005265 energy consumption Methods 0.000 title claims abstract description 24
- 230000035939 shock Effects 0.000 claims abstract description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 8
- 241000883990 Flabellum Species 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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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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- 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
- E01D19/04—Bearings; Hinges
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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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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Abstract
The invention relates to a friction sliding energy-consumption type bridge damping device for a high-speed rail, wherein the top of a pier is fixedly connected with a base, the inner wall of one side of the base, which is rotatably connected with a rotating sleeve, is fixedly connected with a first damping damper, the rotating sleeve is slidably connected with a circular sliding plate, one end of the first damping damper, which is far away from the base, is fixedly connected with the circular sliding plate, one side of the circular sliding plate, which is far away from the first damping damper, is fixedly connected with a lead screw, one end of the rotating sleeve, which is far away from the base, is rotatably connected with a lead screw nut, one end of the lead screw penetrates through the lead screw nut, the bottom of a top plate is fixedly connected with a fixed seat, one end of the lead screw, which is far away from the rotating sleeve, extends into the fixed seat and is rotatably connected with the fixed seat, a first energy-consumption assembly for consuming transverse seismic energy is arranged in a bottom plate, and a second energy-consumption assembly for consuming longitudinal seismic energy is arranged in the pier; the existing high-speed railway bridge can only absorb shock in the vertical direction of the bridge, and can not effectively absorb shock in the transverse direction and the longitudinal direction of the bridge, so that the use safety of the bridge is affected.
Description
Technical Field
The invention belongs to the technical field of bridge damping and energy dissipation devices, and relates to a friction sliding energy dissipation type bridge damping device for a high-speed rail.
Background
For a high-speed railway, the proportion of the bridge on the whole line is large, the train departure interval time is short, and the probability that a train runs on the bridge when an earthquake occurs is very high. And because the pier can transmit the earthquake to the bridge during the earthquake, the bridge can take place relative displacement at the in-process of vibrations relative to the pier, and damping device among the prior art often only can carry out the shock attenuation in vertical direction, can't transversely and vertically carry out effectual shock attenuation, and then lead to high-speed railway and rail derail to cause the traffic accident easily. Therefore, the protection of trains from serious safety accidents during earthquake becomes a performance requirement that must be considered in the design of high-speed railway bridges. And the deformation and dynamic response of the rail are directly related to the train running safety.
The high-speed railway bridge is quite different from a common highway bridge, and the requirement on the overall rigidity of the bridge is quite high in order to ensure the safety and comfort of a train in normal operation, which is just unfavorable for shock resistance. When the high-speed railway bridge is designed for earthquake resistance, the rigidity requirement of normal operation and the driving safety of a train running at a high speed when an earthquake occurs are considered. Therefore, in view of the strict requirement of the high-speed rail bridge on the transverse displacement, it is imperative to develop a bridge damping device which has high energy consumption capability and can strictly control the transverse displacement to prevent the occurrence of train track break angles on the high-speed rail bridge.
Disclosure of Invention
In view of the above, the invention provides a friction sliding energy-consumption type bridge damping device for a high-speed rail, which aims to solve the problem that the use safety of the existing high-speed rail bridge is affected because the existing high-speed rail bridge can only damp in the vertical direction of the bridge and cannot effectively damp in the transverse direction and the longitudinal direction of the bridge.
In order to achieve the purpose, the invention provides the following technical scheme:
a friction sliding energy-consumption type bridge damping device for a high-speed rail comprises a bridge pier, wherein a bottom plate is arranged at the top of the bridge pier, a top plate is arranged above the bottom plate, a base is fixedly connected to the top of the bottom plate, a rotating sleeve is rotatably connected to the base, a first damping damper is fixedly connected to the inner wall of one side of the rotating sleeve, a circular sliding plate is slidably connected to the rotating sleeve, one end, away from the base, of the first damping damper is fixedly connected with the circular sliding plate, a lead screw is fixedly connected to one side, away from the first damping damper, of the circular sliding plate, one end, away from the base, of the rotating sleeve is rotatably connected with a lead screw nut, a thread at one end of the lead screw penetrates through the lead screw nut, a fixing seat is fixedly connected to the bottom of the top plate, one end, away from the rotating sleeve, of the lead screw extends into the fixing seat and is rotatably connected with the fixing seat, and a first energy-consumption assembly for consuming transverse seismic energy is arranged in the bottom plate, and a second energy dissipation assembly used for dissipating longitudinal seismic energy is arranged in the bridge pier.
Further, the first energy dissipation assembly comprises a rectangular groove arranged at the top of the bottom plate, a groove is formed in the inner wall of the bottom of the rectangular groove, a first rack is fixedly connected to the inner wall of the bottom of the groove, a rectangular sliding block is slidably connected to the inner wall of the bottom of the rectangular groove, a rectangular rod is slidably connected to the rectangular sliding block, a strip-shaped plate is fixedly connected to the top end of the rectangular rod and fixedly connected with the fixing base, a second damping damper is fixedly connected to the bottom end of the rectangular rod, a sliding groove is formed in the bottom end of the rectangular sliding block, a first sliding plate is slidably connected to the sliding groove, a connecting rod is fixedly connected to the top of the first sliding plate, the top end of the connecting rod slidably extends into the rectangular sliding block and is fixedly connected with the second damping damper, a plurality of first damping springs are fixedly connected to the bottom of the first sliding plate, and the same second rack is fixedly connected to the bottoms of the plurality of first damping springs, and the second rack is meshed with the first rack.
Further, top one side of pier is equipped with the sliding tray, sliding tray sliding connection has two symmetrical sliding columns, two the same second damping spring of one side fixedly connected with that the sliding column is close to each other, two the top of sliding column all rotates and is connected with the dwang, and one side fixedly connected with slide bar that the rectangle slider is close to the sliding tray, and the other end of slide bar slides and runs through the bottom plate and rotate with two dwangs and be connected.
Further, second power consumption subassembly is including setting up the cavity at the pier top, two symmetrical fixed plates of bottom inner wall fixedly connected with of cavity, two symmetrical first trapezoidal pieces of bottom inner wall sliding connection of cavity, a plurality of third damping spring of one side fixedly connected with that first trapezoidal piece and fixed plate are close to each other, it has the movable rod to slide to run through in the bottom plate, the bottom of movable rod extends to in the cavity and fixedly connected with second trapezoidal piece, and second trapezoidal piece is located between two first trapezoidal pieces, and second trapezoidal piece and the cooperation of first trapezoidal piece contact, the top of movable rod is equipped with the arc that touches mutually with the rotation sleeve.
Further, the top fixedly connected with rubber pad of arc, can avoid arc and the rigid collision of rotating the sleeve through the rubber pad.
Further, the top of movable rod rotates and is connected with the turning block, and the top and the arc fixed connection of turning block, when rotating sleeve appears rotating, can make the arc support rotating sleeve all the time through the turning block.
Further, the bottom fixedly connected with of bottom plate has two symmetrical rubber damping springs, and two rubber damping springs all extend to the cavity in, two one side that rubber damping spring kept away from each other bumps with the inner wall of cavity respectively and touches, when the displacement of certain distance appears in the effect that the bottom plate received seismic energy, can carry out the energy dissipation to the seismic energy of bottom plate through rubber damping spring.
Further, a plurality of guide bars of bottom fixedly connected with of first slide, and in the bottom slip of guide bar extended to the second rack, can avoid the second rack to appear rocking through the guide bar.
Further, the equal fixedly connected with telescopic link in top four corners of bottom plate, and the output shaft of telescopic link all with the bottom sliding connection of roof, not only can play the supporting role to the roof through the telescopic link, can also guide the roof to carry out the slip of certain distance.
Further, a plurality of flabellums of screw-nut's outer wall fixedly connected with, when the fixing base drives the lead screw and removes, screw-nut can drive the flabellum under the effect of lead screw and rotate, and then can produce wind energy along with the rotation of flabellum, can accelerate the circulation of air between bottom plate and the roof, avoid piling up a large amount of dusts between bottom plate and the roof and influence the shock attenuation power consumption effect, and the wind energy that the flabellum produced can also cool down the device, prevent that the device is interior high temperature, influence the device's life.
The invention has the beneficial effects that:
1. according to the friction sliding energy-consumption type bridge damping device for the high-speed rail, when the fixing seat moves obliquely downwards, the fixing seat drives the strip-shaped plate and the rectangular rod to move downwards, the second damping damper begins to compress, the vertical seismic energy is consumed through the second damping damper, the connecting rod and the first sliding plate are pushed to move downwards through the second damping damper, the second rack is meshed with the first rack, the transverse seismic energy can be further consumed through the action of the first rack, the first damping spring and the second rack, and the vertical seismic energy and the transverse seismic energy are further consumed simultaneously.
2. According to the friction sliding energy-consumption type bridge damping device for the high-speed rail, the top plate drives the fixing seat to move obliquely downwards, the fixing seat can drive the screw rod to move, the first damping begins to stretch, and the screw rod nut and the fan blade can rotate through the screw rod, so that not only can the seismic energy be primarily consumed through the first damping, but also the air circulation between the bottom plate and the top plate can be accelerated through the wind energy of the fan blade at the moment, the effect that a large amount of dust is accumulated between the bottom plate and the top plate to influence the damping energy consumption effect is avoided, the wind energy generated by the fan blade can cool the device, and the service life of the device is prevented from being influenced due to overhigh temperature in the device.
3. The friction sliding energy-consumption type bridge damping device for the high-speed rail disclosed by the invention has the advantages that the sliding rod can be pushed to move towards the right side when the rectangular sliding block slides towards the right side, the rotating rod drives the two rotating rods to rotate, the two sliding columns slide towards two sides along the sliding groove, the second damping spring begins to stretch, the seismic energy is consumed again, and the second damping spring, the first rack and the second rack can be used for performing seismic energy consumption twice while the rectangular sliding block slides.
4. According to the friction sliding energy-consumption type bridge damping device for the high-speed rail, through the matching of the second trapezoid blocks and the first trapezoid blocks, when the movable rod moves downwards, the second trapezoid blocks can push the two first trapezoid blocks to slide towards two sides, the third damping springs are compressed to consume vertical seismic energy, and when the bottom plate drives the second trapezoid blocks to move for a certain distance, the second trapezoid blocks and the first trapezoid blocks can also consume longitudinal seismic energy through the matching.
5. The friction sliding energy-consumption bridge damping device for the high-speed rail disclosed by the invention can simultaneously consume seismic energy in the vertical direction, the transverse direction and the longitudinal direction, can effectively consume the seismic energy by using step-by-step consumption in the process of seismic energy consumption, can increase the stability of the bridge, can drive the screw rod nut and the fan blade to rotate while consuming the seismic energy, accelerates the air circulation between the bottom plate and the top plate, avoids the phenomenon that a large amount of dust is accumulated between the bottom plate and the top plate to influence the damping energy-consumption effect, can cool the device by wind energy generated by the fan blade, and prevents the service life of the device from being influenced by overhigh temperature in the device.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is an overall three-dimensional view of a friction slip energy-consuming bridge damping device for a high-speed rail according to the invention;
FIG. 2 is a three-dimensional view of a rotating sleeve in the friction slip energy-consuming bridge damping device for the high-speed rail according to the present invention;
FIG. 3 is a front cross-sectional view of a friction slip energy-consuming bridge damping device for a high-speed rail according to the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is a three-dimensional view of a rectangular sliding block and a rectangular rod in the friction sliding energy-consuming bridge damping device for the high-speed rail according to the invention;
FIG. 6 is a front cross-sectional view of the rectangular slider block of FIG. 3;
FIG. 7 is a view of the present invention taken along line B of FIG. 3;
fig. 8 is a front cross-sectional view of a rotating sleeve in the friction slip energy dissipation type bridge damping device for the high-speed rail according to the present invention.
Reference numerals: 1. a bridge pier; 2. a base plate; 3. a top plate; 4. a base; 5. rotating the sleeve; 6. a first damping; 7. a circular slide plate; 8. a screw rod; 9. a feed screw nut; 10. a fixed seat; 11. a rectangular groove; 12. a groove; 13. a first rack; 14. a rectangular slider; 15. a rectangular bar; 16. a second damping; 17. a strip plate; 18. a chute; 19. a first slide plate; 20. a first damping spring; 21. a second rack; 22. a connecting rod; 23. a slide bar; 24. a sliding groove; 25. a sliding post; 26. a second damping spring; 27. rotating the rod; 28. a cavity; 29. a fixing plate; 30. a third damping spring; 31. a first trapezoidal block; 32. a movable rod; 33. a second trapezoidal block; 34. an arc-shaped plate; 35. a fan blade; 36. a rubber damping spring; 37. rotating the block; 38. a rubber pad; 39. a telescopic rod; 40. a guide rod.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example one
As shown in figures 1-7, a friction sliding energy-consuming bridge damping device for a high-speed rail is provided, wherein a bottom plate 2 is arranged at the top of a bridge pier 1, a top plate 3 is arranged above the bottom plate 2, the top of the bottom plate 2 is fixedly connected with a base 4 through a bolt, a rotating sleeve 5 is rotatably connected with the base 4, a first damping damper 6 is fixedly connected with the inner wall of one side of the rotating sleeve 5 through a bolt, a circular sliding plate 7 is slidably connected with the rotating sleeve 5, one end of the first damping damper 6, far away from the base 4, is fixedly connected with the circular sliding plate 7 through a bolt, one side of the circular sliding plate 7, far away from the first damping damper 6, is fixedly connected with a lead screw 8 through a bolt, one end of the rotating sleeve 5, far away from the base 4, is rotatably connected with a lead screw nut 9, one end of the lead screw 8 penetrates through the lead screw nut 9, the bottom of the top plate 3 is fixedly connected with a fixed seat 10 through a bolt, and one end of the lead screw 8, far away from the rotating sleeve 5, extends into the fixed seat 10 and is rotatably connected with the fixed seat 10, be equipped with in the bottom plate 2 and be used for consuming the first power consumption subassembly of horizontal seismic energy, be equipped with in the pier 1 and be used for consuming the second power consumption subassembly of vertical seismic energy, the top four corners of bottom plate 2 all is through bolt fixedly connected with telescopic link 39, and telescopic link 39's output shaft all with the bottom sliding connection of roof 3, not only can play the supporting role to roof 3 through telescopic link 39, can also guide roof 3 to carry out the slip of certain distance.
In the invention, the first energy dissipation assembly comprises a rectangular groove 11 arranged at the top of a bottom plate 2, a groove 12 is arranged on the inner wall of the bottom of the rectangular groove 11, a first rack 13 is fixedly connected to the inner wall of the bottom of the groove 12 through a bolt, a rectangular sliding block 14 is slidably connected to the inner wall of the bottom of the rectangular groove 11, a rectangular rod 15 is slidably connected to the rectangular sliding block 14, a strip-shaped plate 17 is fixedly connected to the top of the rectangular rod 15 through a bolt, the strip-shaped plate 17 is fixedly connected to a fixed seat 10 through a bolt, a second damping damper 16 is fixedly connected to the bottom of the rectangular rod 15 through a bolt, a sliding groove 18 is arranged at the bottom of the rectangular sliding block 14, a first sliding plate 19 is slidably connected to the sliding groove 18, a connecting rod 22 is fixedly connected to the top of the first sliding plate 19 through a bolt, the top of the connecting rod 22 slidably extends into the rectangular sliding block 14 and is fixedly connected to the second damping damper 16, a plurality of first damping springs 20 are fixedly connected to the bottom of the first sliding plate 19, the bottoms of the first damping springs 20 are fixedly connected with the same second rack 21, the second rack 21 is meshed with the first rack 13, one side of the top of the pier 1 is provided with a sliding groove 24, two symmetrical sliding columns 25 are slidably connected in the sliding groove 24, one side of the two sliding columns 25 close to each other is fixedly connected with the same second damping spring 26, the top ends of the two sliding columns 25 are rotatably connected with a rotating rod 27, one side of the rectangular sliding block 14 close to the sliding groove 24 is fixedly connected with a sliding rod 23, the other end of the sliding rod 23 slidably penetrates through the bottom plate 2 and is rotatably connected with the two rotating rods 27, when the fixing seat 10 obliquely moves downwards, the fixing seat 10 drives the strip-shaped plate 17 and the rectangular rod 15 to move downwards, the second damping 16 starts to be compressed, the vertical direction earthquake energy is consumed by the second damping 16, and the second damping 16 pushes the connecting rod 22 and the first sliding plate 19 to move downwards, the second rack 21 is engaged with the first rack 13, and further, the transverse seismic energy can be consumed under the action of the first rack 13, the first damping spring 20 and the second rack 21, and then the vertical and transverse seismic energy can be consumed at the same time.
In the present invention, when the rectangular slider 14 slides to the right, the sliding rod 23 can be pushed to move to the right, the rotating rod 27 drives the two rotating rods 27 to rotate, the two sliding columns 25 slide to both sides along the sliding groove 24, the second damping spring 26 starts to stretch, so that once more, the seismic energy is consumed, and while the rectangular slider 14 slides, the second damping spring 26, the first damping spring 20, the first rack 13, and the second rack 21 can consume the seismic energy twice.
In the invention, the second energy dissipation assembly comprises a cavity 28 arranged at the top of the pier 1, two symmetrical fixing plates 29 are fixedly connected to the inner wall of the bottom of the cavity 28 through bolts, two symmetrical first trapezoidal blocks 31 are slidably connected to the inner wall of the bottom of the cavity 28, a plurality of third damping springs 30 are fixedly connected to the sides, close to each other, of the first trapezoidal blocks 31 and the fixing plates 29, movable rods 32 penetrate through the bottom plate 2 in a sliding manner, the bottom ends of the movable rods 32 extend into the cavity 28 and are fixedly connected with second trapezoidal blocks 33 through bolts, the second trapezoidal blocks 33 are located between the two first trapezoidal blocks 31, the second trapezoidal blocks 33 are in contact fit with the first trapezoidal blocks 31, arc-shaped plates 34 in contact with the rotating sleeve 5 are arranged at the top ends of the movable rods 32, rubber pads 38 are fixedly connected to the tops of the arc-shaped plates 34 through bolts, and the rubber pads 38 can avoid the collision between the arc-shaped plates 34 and the rotating sleeve 5, through the cooperation of second trapezoidal piece 33 and first trapezoidal piece 31, when movable rod 32 moves down, second trapezoidal piece 33 can promote two first trapezoidal pieces 31 and slide to both sides, and third damping spring 30 compresses, consumes the seismic energy of vertical direction, and when bottom plate 2 drove second trapezoidal piece 33 and certain distance appears and removes, the cooperation of second trapezoidal piece 33 and first trapezoidal piece 31 can also consume fore-and-aft seismic energy moreover.
In the invention, the top end of the movable rod 32 is rotatably connected with the rotating block 37, the top end of the rotating block 37 is fixedly connected with the arc-shaped plate 34 through a bolt, and when the rotating sleeve 5 rotates, the rotating block 37 can enable the arc-shaped plate 34 to always support the rotating sleeve 5.
In the invention, the bottom of the bottom plate 2 is fixedly connected with two symmetrical rubber damping springs 36 through bolts, the two rubber damping springs 36 extend into the cavity 28, one sides of the two rubber damping springs 36, which are far away from each other, are respectively contacted with the inner wall of the cavity 28, and when the bottom plate 2 is displaced at a certain distance under the action of seismic energy, the seismic energy of the bottom plate 2 can be dissipated through the rubber damping springs 36.
In the invention, the bottom of the first sliding plate 19 is fixedly connected with a plurality of guide rods 40 through bolts, the bottom ends of the guide rods 40 extend into the second rack 21 in a sliding manner, and the guide rods 40 can prevent the second rack 21 from shaking.
Example two
As a further improvement of the previous embodiment, as shown in fig. 1-8, in the present embodiment, a friction slippage energy-consuming bridge damping device for a high-speed rail, a bottom plate 2 is disposed on the top of a bridge pier 1, a top plate 3 is disposed above the bottom plate 2, a base 4 is fixedly connected to the top of the bottom plate 2 through a bolt, a rotating sleeve 5 is rotatably connected to the base 4, a first damping damper 6 is fixedly connected to an inner wall of one side of the rotating sleeve 5 through a bolt, a circular sliding plate 7 is slidably connected to the rotating sleeve 5, an end of the first damping damper 6 away from the base 4 and the circular sliding plate 7 are fixedly connected through a bolt, a lead screw 8 is fixedly connected to one side of the circular sliding plate 7 away from the first damping damper 6 through a bolt, a lead screw nut 9 is rotatably connected to an end of the rotating sleeve 5 away from the base 4, a thread of the lead screw 8 penetrates through the lead screw nut 9, a fixing seat 10 is fixedly connected to the bottom of the top plate 3 through a bolt, and the one end that the rotating sleeve 5 was kept away from to lead screw 8 extends to in the fixing base 10 and is connected with the rotation of fixing base 10, be equipped with the first power consumption subassembly that is used for consuming horizontal seismic energy in the bottom plate 2, be equipped with the second power consumption subassembly that is used for consuming vertical seismic energy in the pier 1, the top four corners of bottom plate 2 all is through bolt fixedly connected with telescopic link 39, and the output shaft of telescopic link 39 all with the bottom sliding connection of roof 3, not only can play the supporting role to roof 3 through telescopic link 39, can also guide roof 3 to carry out the slip of certain distance.
In the invention, the first energy dissipation assembly comprises a rectangular groove 11 arranged at the top of a bottom plate 2, a groove 12 is arranged on the inner wall of the bottom of the rectangular groove 11, a first rack 13 is fixedly connected to the inner wall of the bottom of the groove 12 through a bolt, a rectangular sliding block 14 is slidably connected to the inner wall of the bottom of the rectangular groove 11, a rectangular rod 15 is slidably connected to the rectangular sliding block 14, a strip-shaped plate 17 is fixedly connected to the top of the rectangular rod 15 through a bolt, the strip-shaped plate 17 is fixedly connected to a fixed seat 10 through a bolt, a second damping damper 16 is fixedly connected to the bottom of the rectangular rod 15 through a bolt, a sliding groove 18 is arranged at the bottom of the rectangular sliding block 14, a first sliding plate 19 is slidably connected to the sliding groove 18, a connecting rod 22 is fixedly connected to the top of the first sliding plate 19 through a bolt, the top of the connecting rod 22 slidably extends into the rectangular sliding block 14 and is fixedly connected to the second damping damper 16, a plurality of first damping springs 20 are fixedly connected to the bottom of the first sliding plate 19, the bottoms of the first damping springs 20 are fixedly connected with the same second rack 21, the second rack 21 is meshed with the first rack 13, one side of the top of the pier 1 is provided with a sliding groove 24, two symmetrical sliding columns 25 are slidably connected in the sliding groove 24, one side of the two sliding columns 25 close to each other is fixedly connected with the same second damping spring 26, the top ends of the two sliding columns 25 are rotatably connected with a rotating rod 27, one side of the rectangular sliding block 14 close to the sliding groove 24 is fixedly connected with a sliding rod 23, the other end of the sliding rod 23 slidably penetrates through the bottom plate 2 and is rotatably connected with the two rotating rods 27, when the fixing seat 10 obliquely moves downwards, the fixing seat 10 drives the strip-shaped plate 17 and the rectangular rod 15 to move downwards, the second damping 16 starts to be compressed, the vertical direction earthquake energy is consumed by the second damping 16, and the second damping 16 pushes the connecting rod 22 and the first sliding plate 19 to move downwards, the second rack 21 is engaged with the first rack 13, and further, the transverse seismic energy can be consumed under the action of the first rack 13, the first damping spring 20 and the second rack 21, and then the vertical and transverse seismic energy can be consumed at the same time.
In the present invention, when the rectangular slider 14 slides to the right, the sliding rod 23 can be pushed to move to the right, the rotating rod 27 drives the two rotating rods 27 to rotate, the two sliding columns 25 slide to both sides along the sliding groove 24, the second damping spring 26 starts to stretch, so that once more, the seismic energy is consumed, and while the rectangular slider 14 slides, the second damping spring 26, the first damping spring 20, the first rack 13, and the second rack 21 can consume the seismic energy twice.
In the invention, the second energy dissipation assembly comprises a cavity 28 arranged at the top of the pier 1, two symmetrical fixing plates 29 are fixedly connected to the inner wall of the bottom of the cavity 28 through bolts, two symmetrical first trapezoidal blocks 31 are slidably connected to the inner wall of the bottom of the cavity 28, a plurality of third damping springs 30 are fixedly connected to the sides, close to each other, of the first trapezoidal blocks 31 and the fixing plates 29, movable rods 32 penetrate through the bottom plate 2 in a sliding manner, the bottom ends of the movable rods 32 extend into the cavity 28 and are fixedly connected with second trapezoidal blocks 33 through bolts, the second trapezoidal blocks 33 are located between the two first trapezoidal blocks 31, the second trapezoidal blocks 33 are in contact fit with the first trapezoidal blocks 31, arc-shaped plates 34 in contact with the rotating sleeve 5 are arranged at the top ends of the movable rods 32, rubber pads 38 are fixedly connected to the tops of the arc-shaped plates 34 through bolts, and the rubber pads 38 can avoid the collision between the arc-shaped plates 34 and the rotating sleeve 5, through the cooperation of second trapezoidal piece 33 and first trapezoidal piece 31, when movable rod 32 moves down, second trapezoidal piece 33 can promote two first trapezoidal pieces 31 and slide to both sides, and third damping spring 30 compresses, consumes the seismic energy of vertical direction, and when bottom plate 2 drove second trapezoidal piece 33 and certain distance appears and removes, the cooperation of second trapezoidal piece 33 and first trapezoidal piece 31 can also consume fore-and-aft seismic energy moreover.
In the invention, the top end of the movable rod 32 is rotatably connected with the rotating block 37, the top end of the rotating block 37 is fixedly connected with the arc-shaped plate 34 through a bolt, and when the rotating sleeve 5 rotates, the rotating block 37 can enable the arc-shaped plate 34 to always support the rotating sleeve 5.
In the invention, the bottom of the bottom plate 2 is fixedly connected with two symmetrical rubber damping springs 36 through bolts, the two rubber damping springs 36 extend into the cavity 28, one sides of the two rubber damping springs 36, which are far away from each other, are respectively contacted with the inner wall of the cavity 28, and when the bottom plate 2 is displaced at a certain distance under the action of seismic energy, the seismic energy of the bottom plate 2 can be dissipated through the rubber damping springs 36.
In the invention, the bottom of the first sliding plate 19 is fixedly connected with a plurality of guide rods 40 through bolts, the bottom ends of the guide rods 40 extend into the second rack 21 in a sliding manner, and the guide rods 40 can prevent the second rack 21 from shaking.
According to the invention, the outer wall of the screw rod nut 9 is fixedly connected with the plurality of fan blades 35, when the fixing seat 10 drives the screw rod 8 to move, the screw rod nut 9 can drive the fan blades 35 to rotate under the action of the screw rod 8, so that wind energy can be generated along with the rotation of the fan blades 35, the air circulation between the bottom plate 2 and the top plate 3 can be accelerated, the shock absorption and energy consumption effects caused by a large amount of dust accumulated between the bottom plate 2 and the top plate 3 are avoided, the wind energy generated by the fan blades 35 can also cool the device, and the service life of the device is prevented from being influenced by overhigh temperature in the device.
The advantages of the second embodiment over the first embodiment are: the outer wall of the feed screw nut 9 is fixedly connected with a plurality of fan blades 35.
Install the device between bridge and pier 1, the bridge takes place vibrations when the earthquake takes place, lateral displacement appears when the bridge appears rocking from top to bottom, roof 3 drives fixing base 10 and moves to the right side below, rotating sleeve 5 and lead screw 8 begin to rotate, fixing base 10 drives lead screw 8 and moves to the right side, because lead screw 8 and lead screw nut 9 threaded connection, lead screw 8 can drive lead screw nut 9 when removing and rotate, and first damping 6 begins to appear tensile under the effect of lead screw 8, the earthquake energy of preliminary consumption.
When the fixed seat 10 moves obliquely downwards, the fixed seat 10 drives the strip-shaped plate 17 and the rectangular rod 15 to move downwards, the second damping damper 16 starts to compress, the second damping damper 16 consumes seismic energy, the second damping damper 16 pushes the first sliding plate 19 and the second rack 21 to move downwards through the first damping spring 20, at this time, the first rack 13 and the second rack 21 are in primary clamping contact, as the rectangular sliding block 14 slides to the right side under the action of the fixed seat 10 and the screw rod 8, the second rack 21 moves upwards under the action of the first rack 13, the first damping spring 20 starts to compress, further seismic energy is consumed while the rectangular sliding block 14 slides under the cooperation of the second rack 21, the first rack 13 and the first damping spring 20, and the sliding rod 23 can be pushed to move to the right side when the rectangular sliding block 14 slides to the right side, and the rotating rod 23 drives the two rotating rods 27 to rotate, and the two sliding columns 25 slide to both sides along the sliding grooves 24, the second damping spring 26 starts to be stretched, and once again, the seismic energy is consumed.
In addition, when the rotating sleeve 5 rotates downwards, the screw rod 8 pushes the second trapezoidal block 33 to move downwards through the arc-shaped plate 34 and the rotating block 37, the inclined surface of the second trapezoidal block 33 is in contact fit with the inclined surfaces of the two first trapezoidal blocks 31, the second trapezoidal block 33 pushes the two first trapezoidal blocks 31 to slide towards two sides, the third damping spring 30 starts to compress, the vertical seismic energy is consumed through the third damping spring 30, when the bridge shakes up and down and simultaneously longitudinally displaces, the vertical seismic energy can be consumed through the cooperation of the second damping damper 16 and the rectangular rod 15, the bottom plate 2 generates certain displacement relative to the pier 1, at the moment, the second trapezoidal block 33 generates certain displacement under the action of the bottom plate 2, because the second trapezoidal block 33 is in contact fit with the first trapezoidal block 31, when the bottom plate 2 and the second trapezoidal block 33 generate displacement, the second trapezoidal block 33 pushes the first trapezoidal block 31 to move, the seismic energy can be primarily consumed by the third damping spring 30, and the second trapezoidal block 33 is upwardly moved by a certain distance under the slope of the first trapezoidal block 31, so that the seismic energy in the vertical direction can be offset.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The friction sliding energy-consumption type bridge damping device for the high-speed rail comprises a bridge pier (1) and is characterized in that a bottom plate (2) is arranged at the top of the bridge pier (1), a top plate (3) is arranged above the bottom plate (2), a base (4) is fixedly connected to the top of the bottom plate (2), a rotating sleeve (5) is rotatably connected to the base (4), a first damping (6) is fixedly connected to the inner wall of one side of the rotating sleeve (5), a circular sliding plate (7) is slidably connected to the rotating sleeve (5), one end, away from the base (4), of the first damping (6) is fixedly connected with a circular sliding plate (7), a lead screw (8) is fixedly connected to one side, away from the first damping (6), of the circular sliding plate (7), and one end, away from the base (4), of the rotating sleeve (5) is rotatably connected with a lead screw nut (9), and the one end screw thread of lead screw (8) runs through screw-nut (9), the bottom fixedly connected with fixing base (10) of roof (3), and lead screw (8) keep away from the one end of rotating sleeve (5) and extend to in fixing base (10) and rotate with fixing base (10) and be connected, be equipped with the first power consumption subassembly that is used for consuming horizontal seismic energy in bottom plate (2), be equipped with the second power consumption subassembly that is used for consuming vertical seismic energy in pier (1).
2. The friction sliding energy-consuming bridge damping device for the high-speed rail according to claim 1, wherein the first energy-consuming component comprises a rectangular groove (11) arranged at the top of the bottom plate (2), a groove (12) is formed in the inner bottom wall of the rectangular groove (11), a first rack (13) is fixedly connected to the inner bottom wall of the groove (12), a rectangular sliding block (14) is slidably connected to the inner bottom wall of the rectangular groove (11), a rectangular rod (15) is slidably connected to the rectangular sliding block (14), a strip-shaped plate (17) is fixedly connected to the top end of the rectangular rod (15), the strip-shaped plate (17) is fixedly connected to the fixed seat (10), a second damping damper (16) is fixedly connected to the bottom end of the rectangular rod (15), a sliding groove (18) is formed in the bottom end of the rectangular sliding block (14), a first sliding plate (19) is slidably connected to the sliding groove (18), the top fixedly connected with connecting rod (22) of first slide (19), and the top of connecting rod (22) slide extend to in rectangle slider (14) and with second shock attenuation damping (16) fixed connection, a plurality of first damping spring (20) of bottom fixedly connected with of first slide (19), it is a plurality of the same second rack (21) of bottom fixedly connected with of first damping spring (20), and second rack (21) and first rack (13) mesh mutually.
3. The friction sliding energy-consumption type bridge damping device for the high-speed rail according to claim 1, wherein a sliding groove (24) is formed in one side of the top of the bridge pier (1), two symmetrical sliding columns (25) are connected in the sliding groove (24), one side, close to each other, of each sliding column (25) is fixedly connected with a same second damping spring (26), the top ends of the two sliding columns (25) are rotatably connected with a rotating rod (27), one side, close to the sliding groove (24), of each rectangular sliding block (14) is fixedly connected with a sliding rod (23), and the other end of each sliding rod (23) penetrates through the bottom plate (2) in a sliding mode and is rotatably connected with the two rotating rods (27).
4. The friction sliding energy-consumption type bridge damping device for the high-speed rail according to claim 1, wherein the second energy-consumption assembly comprises a cavity (28) arranged at the top of a pier (1), two symmetrical fixing plates (29) are fixedly connected to the inner bottom wall of the cavity (28), two symmetrical first trapezoidal blocks (31) are slidably connected to the inner bottom wall of the cavity (28), a plurality of third damping springs (30) are fixedly connected to one side, close to each other, of the first trapezoidal blocks (31) and the fixing plates (29), a movable rod (32) penetrates through the bottom plate (2) in a sliding manner, the bottom end of the movable rod (32) extends into the cavity (28) and is fixedly connected with a second trapezoidal block (33), the second trapezoidal block (33) is located between the two first trapezoidal blocks (31), and the second trapezoidal block (33) is in contact fit with the first trapezoidal block (31), the top end of the movable rod (32) is provided with an arc-shaped plate (34) which is contacted with the rotary sleeve (5).
5. The friction sliding energy dissipation type bridge damping device for the high-speed rail according to claim 4, wherein a rubber pad (38) is fixedly connected to the top of the arc-shaped plate (34).
6. The friction sliding energy dissipation type bridge damping device for the high-speed rail according to claim 4, wherein a rotating block (37) is rotatably connected to the top end of the movable rod (32), and the top end of the rotating block (37) is fixedly connected with the arc-shaped plate (34).
7. The friction sliding energy dissipation type bridge damping device for the high-speed rail according to claim 4, wherein two symmetrical rubber damping springs (36) are fixedly connected to the bottom of the bottom plate (2), the two rubber damping springs (36) extend into the cavity (28), and the sides, away from each other, of the two rubber damping springs (36) respectively touch the inner wall of the cavity (28).
8. The friction sliding energy dissipation type bridge damping device for the high-speed rail according to claim 2, wherein a plurality of guide rods (40) are fixedly connected to the bottom of the first sliding plate (19), and the bottom ends of the guide rods (40) extend into the second rack (21) in a sliding manner.
9. The friction sliding energy-consumption type bridge damping device for the high-speed rail according to claim 1, wherein four corners of the top of the bottom plate (2) are fixedly connected with telescopic rods (39), and output shafts of the telescopic rods (39) are slidably connected with the bottom of the top plate (3).
10. The friction slip energy dissipation type bridge damping device for the high-speed rail according to claim 1, wherein a plurality of fan blades (35) are fixedly connected to the outer wall of the feed screw nut (9).
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| CN202111400961.8A CN114108449B (en) | 2021-11-24 | 2021-11-24 | Friction slip energy dissipation type bridge damping device for high-speed rail |
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