CN213896726U - Self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption - Google Patents
Self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption Download PDFInfo
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- CN213896726U CN213896726U CN202022208333.7U CN202022208333U CN213896726U CN 213896726 U CN213896726 U CN 213896726U CN 202022208333 U CN202022208333 U CN 202022208333U CN 213896726 U CN213896726 U CN 213896726U
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Abstract
The utility model discloses a self-locking type resettable energy-dissipation multidirectional limiting bridge anti-seismic device, which comprises a steel corbel, a friction limiting top plate, a transmission limiting steel column, a transmission slider, a friction limiting slider, a support stop block, a transmission plate, a first steel spring and a second steel spring; the steel bracket is fixed on the side wall of the pier through a bolt; the friction limiting top plate is fixed at the bottom of the bridge girder through a bolt, one end of the transmission limiting steel column is connected with the bottom of the friction limiting top plate through a spherical hinge support, and the other end of the transmission limiting steel column is connected to a first protruding block of the transmission sliding block through the spherical hinge support; the transmission slide block is connected to the bottom of the bracket stop block through a first steel spring; the friction limiting sliding block is connected to the upper part of the bracket stop block through a first steel spring; and the two ends of the driving plate are fixedly connected with the second steel springs and are connected with the support stop block through the hinged support. The utility model discloses when carrying out spacingly to the bridge, can realize the auto-lock, the whole power consumption shock attenuation of device is effectual, and simple structure is reasonable, the preparation of being convenient for.
Description
Technical Field
The utility model relates to a bridge antidetonation technical field specifically is a self-locking type can reset spacing bridge antidetonation device of power consumption multidirectional.
Background
With the rapid development of economic science and technology in China, the development of economy drives the rapid development of infrastructure and road and bridge construction more and more. The bridge has large span and high height, most of the bridges in service in China can generate certain longitudinal and transverse displacement under the action of various power such as earthquake, vehicle and ship collision and the like, and can generate displacement in any direction under the action of static force such as dead blocking of an expansion joint, temperature action and the like, and the bridges with beam body deviation seriously threaten the safety of road operation, so that anti-seismic measures are very necessary to be taken for the bridges.
At present, in order to limit the generation of relatively large displacement between the upper beam bodies, a common method is to arrange a stop block at the top of the bridge body beam, but large stress can be generated in the beam body, so that the bottom of the beam body, the pier top or the cover beam top is damaged, and the displacement of the beam body cannot be well limited. Secondly, the stop is deformed to consume seismic energy, the consumed seismic energy is low, and the stop is not easy to recover after deformation. Moreover, the current bridge anti-seismic limiting device can only realize the limiting in one direction, and cannot realize the limiting in any direction.
Aiming at the defects, a novel bridge anti-seismic limiting device needs to be designed and developed, can better realize the restraint of any direction of a bridge body, limit the displacement of the bridge body in multiple directions, release and dissipate restraint stress, buffer impact force and consume seismic energy.
SUMMERY OF THE UTILITY MODEL
In view of the above defects in the prior art, the utility model designs and develops a self-locking type resettable energy-consuming multidirectional limiting anti-seismic device for a bridge, which can limit the displacement of the bridge body in multiple directions and effectively prevent the bridge body from falling off due to the influence of an earthquake; the effects of buffering and resetting can be realized, and damage caused by collision is prevented; furthermore, the displacement of the bridge body can be limited by the displacement of the bridge body, the self-locking effect is achieved, the displacement of the bridge body is effectively limited, and seismic energy is consumed; meanwhile, the self-locking effect is realized, and meanwhile, the displacement kinetic energy of the bridge body can be converted into collision, friction and spring energy for consumption, so that the dissipation of seismic energy is further realized.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device comprises a steel corbel, a friction limiting top plate, a transmission limiting steel column, a transmission sliding block, a friction limiting sliding block, a support stop block, a transmission plate, a first steel spring and a second steel spring; the steel bracket is fixed on the side wall of the pier through a bolt; the friction limiting top plate is fixed at the bottom of the bridge girder through a bolt, one end of the transmission limiting steel column is connected with the bottom of the friction limiting top plate through a spherical hinge support, and the other end of the transmission limiting steel column is connected to a first protruding block of the transmission sliding block through the spherical hinge support; the support stop block is fixedly connected to the steel bracket platform, and the transmission slide block is connected to the bottom of the support stop block through a first steel spring; the friction limiting sliding block is connected to the upper part of the bracket stop block through a first steel spring; and the two ends of the driving plate are fixedly connected with second steel springs which are connected with the support stop block through hinged supports.
The friction limiting top plate is composed of a square annular limiting block and a bottom plate, a square groove is formed in the square annular limiting block, and the inner wall of the square groove is an inclined plane.
The friction limiting slide block is composed of a lower-layer square slide block and an upper-layer quadrangular frustum pyramid slide block, and the top and 4 side surfaces of the upper-layer quadrangular frustum pyramid slide block are provided with friction layers.
The bracket baffle block consists of an upper baffle, a lower baffle and a middle plate, wherein the middle plate is respectively provided with the upper baffle at the end parts of two sides along the bridge direction, the middle part of two sides along the bridge direction is respectively provided with the upper baffle, and the lower baffle and the upper baffle are in an upper and lower symmetrical structure according to the plane of the middle plate; the middle plate is composed of a square plate and protruding blocks of the second, the protruding blocks of the second are arranged in the middle of two sides of the square plate in the transverse bridge direction and one side of the square plate in the transverse bridge direction, and the middle plate is integrally in a shape like a Chinese character 'tu'.
The transmission slider comprises square slider and first protruding piece, first protruding piece is located square slider both sides, and first protruding piece height is less than square slider.
The transmission limiting steel column is made of low-yield-strength steel.
The driving plates are arranged on the middle parts of the two sides of the transverse bridge and the free side of the transverse bridge and are connected with the support stop blocks through hinged supports on the second protruding blocks.
The number of the first steel springs is 12, and the first steel springs are respectively arranged between the friction limiting slide block and the upper baffle plate and between the friction limiting slide block and the lower baffle plate.
The utility model has the advantages that:
1. the utility model discloses can realize preventing that the roof beam body from falling the roof beam and damaging the effective restriction of the multi-direction displacement of pontic when the earthquake to strike and cushion the pontic displacement. The transmission limiting steel column is connected with the friction limiting top plate and the transmission sliding block, the limitation on the vertical displacement of the bridge body can be realized, the transmission limiting steel column is connected with the friction limiting top plate and the transmission sliding block through the spherical hinge support, and the displacement of the bridge body in the forward bridge direction and the transverse bridge direction can be limited. Vertical, in the same direction as the bridge to with horizontal bridge to the restriction, realized the multidirectional restriction to the pontic displacement, and just realize multidirectional limit structure simply through the spacing steel column of transmission, the setting up of first steel spring also makes the impact of pontic displacement obtain alleviating simultaneously, prevents the collision damage.
2. The utility model can effectively reduce and consume earthquake energy, and reduce bridge damage; the transmission limiting steel column limits the multidirectional displacement of the bridge body and achieves the first dissipation of seismic energy through the elastic-plastic deformation of the transmission limiting steel column; the first steel spring can convert seismic energy into elastic potential energy, further consumes energy, and achieves double dissipation of the seismic energy; the friction limiting slide block is provided with a plurality of friction layers on the top surface and the side surface, and the friction limiting slide block can provide pressure by the displacement of the bridge body while limiting, so that the friction force is greatly increased, the seismic energy is more effectively consumed, and the triple dissipation of the seismic energy is realized; furthermore, when the device works, the kinetic energy of the bridge body is transmitted to the transmission slide block and the friction limiting slide block through the transmission limiting steel column to be dissipated, friction and collision among all parts enable seismic energy to be dissipated more fully, and quadruple dissipation of seismic energy is achieved;
3. the utility model can limit the displacement of the bridge body through friction and collision, realize self-locking limit of the bridge body through the transmission mechanism, further limit the displacement of the bridge body and fully dissipate the seismic energy; the transmission slide block is arranged at the lower part of the middle plate of the bracket stop block, and the friction limit slide block at the upper part of the middle plate and the transmission plate for connecting the friction limit slide block, the friction limit slide block and the transmission plate form a transmission self-locking limit mechanism together. During earthquake, the displacement of the transmission slide block caused by the displacement of the bridge body is transmitted to the transmission plate, and the transmission slide block is reversely transmitted to the friction limiting slide block by matching with the hinged support arranged at the position of the middle plate protruding plate, so that the displacement of the friction limiting slide block resists and limits the displacement of the friction limiting top plate, thereby achieving the double limiting effect and realizing self-locking; the friction limiting sliding block and the friction limiting top plate move relatively to generate friction to further consume energy, and meanwhile, the arrangement of the first steel spring can achieve buffering and further energy consumption effects;
4. the utility model can realize the self-reset of the transmission slide block and the movable plate and consume energy; the first steel spring arranged in the bracket stop block can enable the transmission slide block to be restored to an initial state after an earthquake, so that the transmission slide block is always kept at the center; the first steel spring arranged between the friction limiting slide block and the upper baffle of the bracket baffle block can enable the friction limiting slide block to be restored to an initial state; the first steel spring and the second steel spring can convert seismic energy into elastic potential energy, and further consume energy;
5. the utility model discloses wholly be bilateral symmetry formula structure, rational in infrastructure simple, the preparation of being convenient for, the material price is low, construction convenience, and is energy-concerving and environment-protective, multi-functional.
Drawings
Fig. 1 is a sectional view of a main structure of a self-locking resettable energy-consuming multidirectional spacing bridge anti-seismic device of the utility model;
fig. 2 is a top view of the main structure of the utility model after the friction limiting top plate is removed;
FIG. 3 is a top view of the structure of the lower portion of the middle plate according to the present invention;
fig. 4 is a left side view of the main structure of the present invention;
fig. 5 is a schematic structural view of the transmission slide block of the present invention;
fig. 6 is a schematic structural view of the bracket stopper of the present invention;
fig. 7 is a schematic structural view of the friction limiting slider according to the present invention;
fig. 8 is a schematic structural view of the friction limiting top plate of the present invention;
fig. 9 is the utility model relates to a whole three-dimensional structure schematic diagram of the multidirectional spacing bridge anti-seismic device of self-locking type power consumption that can reset.
In the figure: 1. steel corbels; 2. a friction limit top plate; 3. a friction limiting slide block; 4. a bracket stop block; 5. a transmission slide block; 6. a transmission limiting steel column; 7. a drive plate; 8. a spherical hinge support; 9. a hinged support; 10. a second steel spring; 11. a first steel spring; 12. a square slider; 13. a first protruding block; 14. a lower baffle plate; 15. a middle plate; 16. an upper baffle plate; 17. a lower square slider; 18. an upper layer quadrangular frustum pyramid sliding block; 19. a square annular limiting block; 20. a base plate; 21. a square groove; 22. a second protruding block; 23. and (4) a friction layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Example (b): see fig. 1-9.
A self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device comprises a steel corbel 1, a friction limiting top plate 2, a transmission limiting steel column 6, a transmission sliding block 5, a friction limiting sliding block 3, a support stop 4, a transmission plate 7, a first steel spring 11 and a second steel spring 10; the steel bracket 1 is fixed on the side wall of the pier through a bolt; the friction limiting top plate 2 is fixed at the bottom of the bridge girder through a bolt, one end of the transmission limiting steel column 6 is connected with the bottom of the friction limiting top plate 2 through a spherical hinge support 8, and the other end of the transmission limiting steel column is connected to a first protruding block 13 of the transmission sliding block 5 through the spherical hinge support 8; the support stop block 4 is fixedly connected to the platform of the steel bracket 1, and the transmission slide block 5 is connected to the bottom of the support stop block 4 through a first steel spring 11; the friction limiting slide block 3 is connected to the upper part of the bracket stop block 4 through a first steel spring 11; and the two ends of the driving plate 7 are fixedly connected with second steel springs 10 which are connected with the support stop block 4 through hinged supports 9.
Spacing roof 2 of friction comprises square annular stopper 19 and bottom plate 20, square annular stopper 19 is inside to be provided with square groove 21, square groove 21 inner wall is the slope plane.
The friction limiting slide block 3 is composed of a lower-layer square slide block 17 and an upper-layer quadrangular frustum pyramid slide block 18, and the top and 4 side surfaces of the upper-layer quadrangular frustum pyramid slide block 18 are provided with friction layers 23.
The support stop block 4 consists of an upper baffle 16, a lower baffle 14 and a middle plate 15, the middle plate 15 is respectively provided with an upper baffle 16 at the two side ends along the bridge direction, the two sides along the bridge direction are respectively provided with an upper baffle 16 at the middle part, and the lower baffle 14 and the upper baffle 16 are in an up-and-down symmetrical structure according to the plane of the middle plate 15; the middle plate 15 is composed of a square plate and second protruding blocks 22, and the second protruding blocks 22 are arranged in the middle of two sides of the square plate in the transverse bridge direction and one side of the square plate in the forward bridge direction and are integrally in a shape of a Chinese character 'tu'.
The transmission slide block 5 is composed of a square slide block 12 and first protruding blocks 13, the first protruding blocks 13 are located on two sides of the square slide block 12, and the height of the first protruding blocks 13 is lower than that of the square slide block 12.
The transmission limiting steel column 6 is made of low-yield-strength steel.
The driving plates 7 are arranged on the two sides of the transverse bridge direction and in the middle of the free edge of the transverse bridge direction and are connected with the support stop block 4 through the hinged supports 9 on the second protruding block 22.
The number of the first steel springs 11 is 12, and the first steel springs are respectively arranged between the friction limiting slide block 3 and the upper baffle 16 and between the transmission slide block 5 and the lower baffle 14.
The utility model relates to a self-locking type can reset spacing bridge antidetonation device of power consumption multidirectional's theory of operation does: when no earthquake occurs, the transmission limiting steel column 6 is in a vertical position and is not deformed, the transmission plate 7 is in the vertical position, the first steel spring 11 and the second steel spring 10 are in an initial state without deformation, the transmission slide block 5 and the friction limiting slide block 3 are both in initial positions, the friction limiting top plate 2 is located in the initial positions, and the centers of the friction limiting slide blocks 3 coincide. When a minor earthquake occurs, relative displacement occurs between the bridge girder and the bridge pier, firstly, the friction limiting top plate 2 is driven, the friction limiting top plate 2 drives the transmission limiting steel column 6, force is transmitted to the transmission slide block 5 and drives the transmission slide block to slide, the first steel spring 11 is compressed and stretched to consume energy, the displacement of the bridge body is limited, and at the moment, the transmission limiting steel column 6 serves as a transmission structure and only generates micro deformation; when the earthquake intensity is high, the transmission limiting steel column 6 deforms under the action of the tensile force of the friction limiting top plate 2 to limit the displacement of the bridge body, and the earthquake energy is consumed through elastic-plastic deformation to further limit the displacement of the bridge body; the connecting piece is a spherical hinge support 8, so that the displacement of the bridge body along the bridge direction, the transverse bridge direction and the vertical direction is limited, and the multi-directional limiting effect is realized; the bridge body displacement drives the transmission slide block 5 to slide and drives one end of the transmission plate 7, the transmission plate 7 is matched with the hinged support 9 arranged at the middle plate 15 to reversely push the friction limiting slide block 3, so that the displacement of the transmission slide block 5 is reversely transmitted to the friction limiting slide block 3, and the displacement of the friction limiting slide block 3 resists and limits the displacement of the friction limiting top plate 2, thereby achieving the effect of double limiting and realizing self-locking; the spacing roof 2 displacements of friction are resisted to the spacing slide block 3 of friction, and relative displacement takes place with the spacing roof 2 of friction, borrows by the 2 pressure of the spacing roof of friction and the frictional layer 23 that sets up on the spacing slide block 3 of friction and produces huge frictional force, and the kinetic energy and the seismic energy of very big consumption pontic restrict the pontic displacement. After the earthquake is ended, the transmission slide block 5 and the friction limiting slide block 3 can be restored to the initial positions through the restoring force action of the first steel spring 11 and the second steel spring 10, and the restoring action is realized, so that the device can be used next time.
It should be noted that: in the above description, the terms "left", "right", "front", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only. The above mentioned embodiments are only embodiments of the present invention, not to limit the scope of the present invention, and all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical fields should be included in the protection scope of the present invention.
Claims (8)
1. A self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption is characterized by comprising a steel corbel (1), a friction limiting top plate (2), a transmission limiting steel column (6), a transmission sliding block (5), a friction limiting sliding block (3), a support stop block (4), a transmission plate (7), a first steel spring (11) and a second steel spring (10); the steel corbel (1) is fixed on the side wall of the pier through a bolt; the friction limiting top plate (2) is fixed at the bottom of the bridge girder through a bolt, one end of the transmission limiting steel column (6) is connected with the bottom of the friction limiting top plate (2) through a spherical hinge support (8), and the other end of the transmission limiting steel column is connected to a first protruding block (13) of the transmission sliding block (5) through the spherical hinge support (8); the support stop block (4) is fixedly connected to a platform of the steel bracket (1), and the transmission slide block (5) is connected to the bottom of the support stop block (4) through a first steel spring (11); the friction limiting sliding block (3) is connected to the upper part of the bracket stop block (4) through a first steel spring (11); and the two ends of the transmission plate (7) are fixedly connected with second steel springs (10) which are connected with the support stop block (4) through hinged supports (9).
2. The self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device according to claim 1, wherein the friction limiting top plate (2) is composed of a square annular limiting block (19) and a bottom plate (20), a square groove (21) is formed in the square annular limiting block (19), and the inner wall of the square groove (21) is an inclined plane.
3. The self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device according to claim 1, wherein the friction limiting slide block (3) is composed of a lower square slide block (17) and an upper quadrangular frustum pyramid slide block (18), and friction layers (23) are arranged on the top and 4 side surfaces of the upper quadrangular frustum slide block (18).
4. The self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device according to claim 1, wherein the support stop (4) is composed of an upper baffle (16), a lower baffle (14) and a middle plate (15), the middle plate (15) is respectively provided with an upper baffle (16) at the two lateral ends along the bridge direction, the two lateral sides of the bridge are respectively provided with an upper baffle (16) at the middle part, and the lower baffle (14) and the upper baffle (16) are in an upper and lower symmetrical structure according to the plane of the middle plate (15); the middle plate (15) is composed of a square plate and second protruding blocks (22), the second protruding blocks (22) are arranged in the middle of two sides of the square plate in the transverse bridge direction and one side of the square plate in the forward bridge direction, and the whole square plate is in a shape like a Chinese character 'tu'.
5. The self-locking type resettable energy-consuming multidirectional limiting bridge anti-seismic device according to claim 1, wherein the transmission sliding block (5) is composed of a square sliding block (12) and first protruding blocks (13), the first protruding blocks (13) are positioned on two sides of the square sliding block (12), and the height of the first protruding blocks (13) is lower than that of the square sliding block (12).
6. The self-locking resettable energy-dissipating multidirectional limiting bridge earthquake-proof device according to claim 1, wherein the transmission limiting steel column (6) is made of low-yield-strength steel.
7. The self-locking type resettable energy-consuming multidirectional limiting bridge anti-seismic device according to claim 1, wherein the driving plates (7) are arranged on two sides in the transverse bridge direction and in the middle of the free side in the forward bridge direction and are connected with the bracket stop blocks (4) through hinged supports (9) on the second protruding blocks (22).
8. The self-locking type resettable energy-consumption multidirectional limiting bridge anti-seismic device according to claim 1, wherein the number of the first steel springs (11) is 12, and the first steel springs are respectively arranged between the friction limiting slide block (3) and the upper baffle (16) and between the transmission slide block (5) and the lower baffle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022208333.7U CN213896726U (en) | 2020-09-30 | 2020-09-30 | Self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022208333.7U CN213896726U (en) | 2020-09-30 | 2020-09-30 | Self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption |
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| Publication Number | Publication Date |
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| CN213896726U true CN213896726U (en) | 2021-08-06 |
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| CN202022208333.7U Expired - Fee Related CN213896726U (en) | 2020-09-30 | 2020-09-30 | Self-locking type multi-directional limiting bridge anti-seismic device capable of resetting energy consumption |
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Granted publication date: 20210806 |