CN115949278B - Tensile shock insulation device based on high bearing capacity - Google Patents
Tensile shock insulation device based on high bearing capacity Download PDFInfo
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- CN115949278B CN115949278B CN202310224358.1A CN202310224358A CN115949278B CN 115949278 B CN115949278 B CN 115949278B CN 202310224358 A CN202310224358 A CN 202310224358A CN 115949278 B CN115949278 B CN 115949278B
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Abstract
The invention provides a high-bearing-capacity-based tensile vibration isolation device, which comprises an upper connecting plate and a lower connecting plate, wherein a curved surface center block is fixed at the center of the lower surface of the upper connecting plate, a curved surface center groove is fixed at the center of the upper surface of the lower connecting plate, and the curved surface center block is slidably limited in the curved surface center groove; the front end and the rear end between the upper connecting plate and the lower connecting plate are respectively provided with a first tensile assembly, and the left end and the right end between the upper connecting plate and the lower connecting plate are respectively provided with a second tensile assembly; damping vibration isolating components are arranged between the adjacent first tensile component and the second tensile component; through setting up the ball-type support structure in curved surface center piece and curved surface centre groove in order to guarantee sufficient bearing capacity and from reset effect, through setting up first tensile subassembly and second tensile subassembly in order to improve the tensile ability of device, through setting up damping vibration isolation subassembly in order to provide damping dissipation vibration energy, the bearing of device, shock insulation performance have effectively been improved in three combined action.
Description
Technical Field
The invention relates to the technical field of shock absorption supports, in particular to a high-bearing-capacity-based tensile shock insulation device.
Background
Three seismic zones are mainly arranged on the earth, and are respectively: the earthquake-resistant building is particularly important in earthquake-resistant design because most areas of the national soil in China are earthquake areas.
For bridges, the adoption of a shock isolation device is one of effective modes for reducing damage caused by earthquake, the existing shock absorption support is mainly divided into two types, namely a rubber support mainly comprising a lead rubber support, a high damping rubber support and the like, and a friction support mainly comprising a friction pendulum support, a plane sliding support and the like; these two types of shock mounts, although widely used, still have certain drawbacks: the bearing capacity of the rubber support is low, the rubber support is greatly influenced by the environment, is easy to age, has poor resetting capacity and is difficult to meet the tensile requirement; the friction support has high bearing capacity, good durability and certain self-resetting capacity, but has poor displacement capacity, and once failure occurs, the whole bridge is possibly damaged.
Therefore, a high-bearing-capacity-based tensile vibration isolation device is needed, which has high bearing capacity, good tensile effect, enough displacement amplitude in strong vibration and good self-resetting performance, so as to meet the requirement on the vibration resistance of the bridge.
Disclosure of Invention
The invention aims to provide a high-bearing-capacity-based tensile shock isolation device so as to solve the problems of poor bearing capacity and tensile capacity, insufficient displacement amplitude under strong shock and the like of the traditional bridge shock absorption support.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a high-bearing-capacity-based tensile vibration isolation device, which comprises an upper connecting plate and a lower connecting plate, wherein the upper connecting plate and the lower connecting plate are arranged in parallel, a curved surface center block is fixed at the center of the lower surface of the upper connecting plate, a curved surface center groove is fixed at the center of the upper surface of the lower connecting plate, and the curved surface center block is slidably limited in the curved surface center groove;
the front and rear ends between the upper connecting plate and the lower connecting plate are respectively provided with a first tensile assembly, and the left and right ends between the upper connecting plate and the lower connecting plate are respectively provided with a second tensile assembly;
damping vibration isolating components are arranged between the first tensile component and the second tensile component adjacently, and the damping vibration isolating components are positioned at four corners between the upper connecting plate and the lower connecting plate.
Through adopting above-mentioned technical scheme, curved surface center piece and curved surface centre groove contact with the form of friction, can satisfy the requirement of bearing capacity, first tensile subassembly and second tensile subassembly have guaranteed the displacement ability of horizontal direction, and damping shock insulation subassembly has certain horizontal displacement and vertical displacement performance concurrently, for the device provides good damping nature, improves the shock insulation effect, and the device wholly possesses from reset ability, can correspond stronger earthquake and not become invalid, has guaranteed shock insulation device's durability.
Preferably, the upper connecting plate and the lower connecting plate are both provided with mounting holes.
Through adopting above-mentioned technical scheme for upper connecting plate and lower connecting plate can conveniently install to bridge junction.
Preferably, the top edge of the curved surface center groove is provided with a limiting edge, and the inner side of the limiting edge is provided with an elastic gasket.
Through adopting above-mentioned technical scheme, spacing effect in curved surface center groove has been guaranteed to spacing edge, and the wearing and tearing between curved surface center piece and the curved surface center groove can be avoided to the elastic gasket.
Preferably, a polytetrafluoroethylene backing plate is arranged on the inner side of the curved surface central groove.
By adopting the technical scheme, the polytetrafluoroethylene backing plate can effectively reduce the friction coefficient, and the curved surface center block and the curved surface center groove slide under the strong shock effect, so that energy is consumed.
Preferably, the first tensile assembly comprises an upper chute, the upper chute is fixed at the lower part of the upper connecting plate, an upper sliding block is slidably limited in the upper chute, a lower anchoring plate is fixed at the upper part of the lower connecting plate, the lower anchoring plate is oppositely arranged at the position of the upper chute, and a first elastic piece is arranged between the upper sliding block and the lower anchoring plate.
Through adopting above-mentioned technical scheme, when strong shock makes upper connecting plate and lower connecting plate take place the horizontal displacement, the upper slider can slide in last spout, thereby cooperate first elastic component to offset vibration energy, and first elastic component has self-reset ability, can reset by oneself after making the displacement take place.
Preferably, the second tensile assembly comprises an upper anchoring plate, the upper anchoring plate is fixed on the lower portion of the upper connecting plate, a lower sliding groove is fixed on the upper portion of the lower connecting plate, the lower sliding groove is arranged opposite to the upper anchoring plate in position, a lower sliding block is slidably arranged in the lower sliding groove, and a second elastic piece is arranged between the lower sliding block and the upper anchoring plate.
Through adopting above-mentioned technical scheme, the same with first tensile subassembly's theory of operation, when upper connecting plate and lower connecting plate take place the fore-and-aft displacement, the slider slides in lower spout down, thereby the cooperation second elastic component resists vibration energy, and the second elastic component also can play the effect of self-resetting.
Preferably, polytetrafluoroethylene lining is arranged on the inner side of the upper chute and the inner side of the lower chute.
By adopting the technical scheme, the polytetrafluoroethylene lining and the polytetrafluoroethylene backing plate have the same effect, and the friction coefficient is reduced.
Preferably, universal joints are arranged at both ends of the first elastic piece and both ends of the second elastic piece.
Through adopting above-mentioned technical scheme for when last slider and lower slider slip, the junction of first elastic component and second elastic component is difficult for taking place to warp because of external force to damage, guarantees its life.
Preferably, the damping vibration isolation component comprises a barrel, the barrel is fixed on the upper surface of the lower connecting plate, an annular groove is formed in the inner side wall of the barrel, a pear-shaped rocking rod is arranged in the barrel, damping filler is filled between the pear-shaped rocking rod and the barrel, an elastic limiting plate is arranged at the opening of the barrel, and the pear-shaped rocking rod is connected with the lower surface of the upper connecting plate through a universal joint.
Through adopting above-mentioned technical scheme, the pear-shaped structure of pear-shaped rocking beam lower part can form powerful damping force with damping filler in the barrel to play the effect of power consumption, avoid the condition that the device that suddenly shakes to lead to destroys, the setting of ring channel makes damping filler can disperse fast under the effect of external force, and after the device resets, pear-shaped rocking beam also can reset thereupon, thereby resumes original damping performance.
Preferably, the damping filler is a mixture of lead powder and steel slag.
By adopting the technical scheme, the mixture of the lead powder and the steel slag can ensure friction force and damping property.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the high-bearing-capacity-based tensile vibration isolation device, the spherical support structures of the curved surface center block and the curved surface center groove are arranged to ensure enough bearing capacity and self-resetting effect, the first tensile component and the second tensile component are arranged to improve the tensile capacity of the device, the damping vibration isolation component is arranged to provide damping vibration dissipation energy, and the bearing and vibration isolation performances of the device are effectively improved through the combined action of the three components.
2. According to the high-bearing-capacity-based tensile vibration isolation device, the curved surface center block is in friction contact with the curved surface center groove, so that the requirement of bearing capacity can be met, and the original state of the device can be quickly recovered by utilizing potential energy under the action of gravity.
3. According to the high-bearing-capacity-based tensile vibration isolation device, the first tensile component and the second tensile component ensure the horizontal displacement capacity of the device in a friction mode, and the elastic component is matched to resist vibration energy, so that excessive displacement is avoided, and the elastic component can also achieve a self-resetting effect.
4. According to the high-bearing-capacity-based tensile vibration isolation device, the damping vibration isolation component can cope with vertical displacement and transverse displacement to a certain extent, and meanwhile, the energy consumption effect is achieved, so that vibration energy is dispersed rapidly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high-bearing-capacity-based tensile vibration isolation device according to the present invention;
FIG. 2 is a side cross-sectional view of a high-load-bearing-capacity-based tensile seismic isolation apparatus provided by the invention;
FIG. 3 is a front cross-sectional view of a high-load-bearing-capacity-based tensile seismic isolation apparatus provided by the invention;
FIG. 4 is a schematic diagram of a damping vibration isolation component in a high-bearing-capacity-based tensile vibration isolation device according to the present invention;
in the figure: 1: upper connecting plate, 2: lower connecting plate, 3: curved surface center piece, 4: curved surface center groove, 5: first tension member, 501: upper chute, 502: upper slider, 503: lower anchor plate, 504: first elastic member, 6: second tensile member, 601: upper anchor plate, 602: lower chute 603: lower slider, 604: second elastic member, 7: damping vibration isolation component, 701: barrel, 702: pear-shaped rocking bar, 703: damping filler, 704: limiting plate, 705: annular groove, 8: mounting holes, 9: limit edge, 10: elastic gasket, 11: a polytetrafluoroethylene backing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a high-bearing-capacity-based tensile vibration isolation device so as to solve the problems in the prior art.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Examples
The embodiment provides a tensile shock insulation device based on high bearing capacity, as shown in fig. 1-4, the device comprises an upper connecting plate 1 and a lower connecting plate 2, wherein the upper connecting plate 1 and the lower connecting plate 2 mainly play a role in mounting and bearing, the dimensions of the upper connecting plate 1 and the lower connecting plate are 100cm long, 100cm wide and 25cm thick, high-strength steel is adopted, the elastic modulus is 2.1 multiplied by 1011Pa, the Poisson ratio is 0.3, and the density is 7850kg/m3; the upper connecting plate 1 and the lower connecting plate 2 are arranged in parallel, the upper connecting plate 1 and the lower connecting plate 2 are provided with mounting holes 8, the mounting connection is convenient, the center of the lower surface of the upper connecting plate 1 is fixedly provided with a curved surface center block 3, the curved surface center block 3 can be integrally processed and formed with the upper connecting plate 1, the curved surface center block 3 can also be independently processed and formed and welded, the center of the upper surface of the lower connecting plate 2 is fixedly provided with a curved surface center groove 4, and likewise, the curved surface center groove 4 can be integrally processed with the lower connecting plate 2, the curved surface center block 3 can be independently processed and welded, and the curved surface center block 3 can be slidably limited in the curved surface center groove 4; it should be understood that the radius of curvature of the curved surface center groove 4 is necessarily larger than the radius of curvature of the curved surface center block 3, so that the curved surface center block 3 can slide in the curved surface center groove 4.
In other embodiments, as shown in fig. 3, the top edge of the curved central groove 4 is provided with a limiting edge 9, which can have a good limiting effect on the curved central block 3, and the inner side of the limiting edge 9 is provided with an elastic gasket 10, so as to reduce abrasion caused by contact during sliding.
In other embodiments, as shown in fig. 3, a polytetrafluoroethylene backing plate 11 is provided inside the curved central groove 4 to reduce the coefficient of friction.
Through setting up the spherical support structure of curved surface center piece 3 and curved surface center groove 4, curved surface center piece 3 and curved surface center groove 4 contact with the form of friction, can satisfy the requirement of bearing capacity, and can utilize the potential energy to resume its original state fast under the effect of gravity.
Further, as shown in fig. 1 and 2, the front and rear ends between the upper connecting plate 1 and the lower connecting plate 2 are respectively provided with a first tensile member 5, the first tensile member 5 includes an upper sliding groove 501, the upper sliding groove 501 is fixed on the lower portion of the upper connecting plate 1 by welding or a screw, an upper sliding block 502 is slidably limited in the upper sliding groove 501, in order to ensure that the two can slide relatively, the upper sliding groove 501 can adopt a T-shaped groove, the upper sliding block 502 can adopt a T-shaped sliding block, in order to reduce friction force, a polytetrafluoroethylene lining can be arranged in the T-shaped groove, the upper portion of the lower connecting plate 2 is fixed with a lower anchoring plate 503 by welding or a screw, the lower anchoring plate 503 is arranged opposite to the upper sliding groove 501, a first elastic member 504 is arranged between the upper sliding block 502 and the lower anchoring plate 503, the first elastic member 504 can adopt a high-strength spring, both ends of the first elastic member 504 are welded with universal joints, and the universal joints are welded on the lower anchoring plate 503 and the upper sliding block 502 respectively.
Through setting up first tensile component 5, when strong shock makes upper connecting plate 1 and lower connecting plate 2 take place the left and right sides displacement, upper slider 502 can slide in upper spout 501 for thereby upper connecting plate 1 has the displacement volume about with lower connecting plate 2 between, thereby cooperate first elastic component 504 to offset vibration energy, thereby first elastic component 504 has self-reset ability, can reset by oneself after making the displacement take place.
Further, as shown in fig. 3, the left and right ends between the upper connecting plate 1 and the lower connecting plate 2 are provided with second tensile members 6; the second tensile member 6 includes an upper anchor plate 601, the upper anchor plate 601 is fixed to the lower portion of the upper connecting plate 1 by welding or by screws, a lower sliding groove 602 is formed in the upper portion of the lower connecting plate 2 by welding or by screws, the position of the lower sliding groove 602 is opposite to that of the upper anchor plate 601, a lower sliding block 603 is slidably arranged in the lower sliding groove 602, similarly, the lower sliding groove 602 and the lower sliding block 603 can also adopt a T-shaped structure, friction between the lower sliding block 603 and the upper anchor plate 601 can be reduced by using polytetrafluoroethylene lining, a second elastic piece 604 is arranged between the lower sliding block 603 and the upper anchor plate 601, the second elastic piece 604 can adopt a high-strength spring, universal joints are welded at two ends of the second elastic piece 604, and the universal joints are welded on the upper anchor plate 601 and the lower sliding block 603 respectively.
Through setting up second tensile member 6, when upper connecting plate 1 and lower connecting plate 2 take place the back-and-forth displacement, lower slider 603 slides in lower spout 602 for thereby have the back-and-forth displacement volume between upper connecting plate 1 and the lower connecting plate 2, thereby cooperate second elastic component 604 to offset vibration energy, second elastic component 604 also can play the effect of self-resetting.
Further, as shown in fig. 4, a damping vibration isolation component 7 is disposed between the adjacent first tensile component 5 and the second tensile component 6, the damping vibration isolation component 7 is located at four corners between the upper connecting plate 1 and the lower connecting plate 2, and comprises a cylinder 701, the cylinder 701 is fixed on the upper surface of the lower connecting plate 2 through welding or screws, an annular groove 705 is formed in the inner side wall of the cylinder 701, the annular groove 705 can be directly machined on a lathe through a hook groove knife, it is understood that the cylinder 701 is necessarily required to have a certain thickness to meet the requirement of annular groove 705 forming, a pear-shaped swinging rod 702 is disposed in the cylinder 701, damping filler 703 is filled between the pear-shaped swinging rod 702 and the cylinder 701, the damping filler 703 is a mixture of lead powder and steel slag, the mixture of lead powder and steel slag can ensure friction force and damping performance, the lead powder and the steel slag are mixed according to a volume ratio of 1:1, an elastic limiting plate 704 is disposed at an opening of the cylinder 701, the pear-shaped swinging rod 702 can be ensured to have a certain transverse displacement after being forced to swing, and can automatically restore a vertical state, and the pear-shaped swinging rod 702 can be connected with the lower surface of the upper connecting plate 1 through a universal joint, and a welding mode can be adopted.
Through setting up damping shock insulation subassembly 7, the pear-shaped structure of its pear-shaped swinging rod 702 lower part can form powerful damping force with damping packing 703 in the barrel to play the effect of power consumption, avoid the device condition of destroying that suddenly shakes and lead to, the setting up of ring channel 705 makes damping packing 703 can disperse fast under the effect of external force, and after the device resets, pear-shaped swinging rod 702 also can reset thereupon, thereby resumes original damping performance.
The invention provides a high-bearing-capacity-based tensile shock insulation device, which has the following working principle: when the device is arranged in a bridge, such as the connection position of a bridge pier and a bearing platform, and a small vibration generated by running of a vehicle or wind is encountered in normal use, the curved surface center block 3 and the curved surface center groove 4 hardly slide relatively, the first tensile component 5 and the second tensile component 6 hardly deform, and the pear-shaped swinging rod 702 in the damping vibration isolation component 7 can consume and transmit energy generated by vibration into the bridge by utilizing damping force between the pear-shaped swinging rod 702 and the damping filler 703; when a larger earthquake occurs, the curved surface center block 3 and the curved surface center groove 4 slide relatively, and then the first tensile component 5 and the second tensile component 6 are driven to generate sliding deformation so as to cope with the required transverse displacement, meanwhile, the transverse acting force is dissipated, the damping vibration isolation component 7 also plays a role in dissipating energy, after the earthquake is over, the curved surface center block 3 and the curved surface center groove 4 can be reset rapidly under the action of gravitational potential energy, and the first tensile component 5, the second tensile component 6 and the damping vibration isolation component 7 are reset along with the action of gravitational potential energy, so that the bridge pier and the fingertips of the bearing platform are not subjected to large displacement, and the bearing and vibration isolation performances of the support device are effectively improved.
The principles and embodiments of the present invention have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (7)
1. A tensile shock insulation device based on high bearing capacity is characterized in that: the novel structure comprises an upper connecting plate (1) and a lower connecting plate (2), wherein the upper connecting plate (1) and the lower connecting plate (2) are arranged in parallel, a curved surface center block (3) is fixed at the center of the lower surface of the upper connecting plate (1), a curved surface center groove (4) is fixed at the center of the upper surface of the lower connecting plate (2), and the curved surface center block (3) is slidably limited in the curved surface center groove (4);
the front and rear ends between the upper connecting plate (1) and the lower connecting plate (2) are respectively provided with a first tensile assembly (5), and the left and right ends between the upper connecting plate (1) and the lower connecting plate (2) are respectively provided with a second tensile assembly (6);
damping vibration isolating components (7) are arranged between the first tensile component (5) and the second tensile component (6) adjacently, and the damping vibration isolating components (7) are positioned at four corners between the upper connecting plate (1) and the lower connecting plate (2);
the first tensile assembly (5) comprises an upper sliding groove (501), the upper sliding groove (501) is fixed at the lower part of the upper connecting plate (1), an upper sliding block (502) is slidably limited in the upper sliding groove (501), a lower anchoring plate (503) is fixed at the upper part of the lower connecting plate (2), the lower anchoring plate (503) is oppositely arranged at the position of the upper sliding groove (501), and a first elastic piece (504) is arranged between the upper sliding block (502) and the lower anchoring plate (503);
the second tensile assembly (6) comprises an upper anchoring plate (601), the upper anchoring plate (601) is fixed at the lower part of the upper connecting plate (1), a lower sliding groove (602) is fixed at the upper part of the lower connecting plate (2), the lower sliding groove (602) is opposite to the upper anchoring plate (601), a lower sliding block (603) is slidably arranged in the lower sliding groove (602), and a second elastic piece (604) is arranged between the lower sliding block (603) and the upper anchoring plate (601);
damping shock insulation subassembly (7) include barrel (701), barrel (701) are fixed in on the upper surface of lower connecting plate (2), the inside wall of barrel (701) is equipped with ring channel (705), be equipped with pear shape rocking rod (702) in barrel (701), pear shape rocking rod (702) with it has damping filler (703) to fill between barrel (701), the opening part of barrel (701) is equipped with elasticity limiting plate (704), pear shape rocking rod (702) through the universal joint with the lower surface connection of upper connecting plate (1).
2. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: the upper connecting plate (1) and the lower connecting plate (2) are both provided with mounting holes (8).
3. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: the top edge of curved surface centre groove (4) is equipped with spacing edge (9), the inboard of spacing edge (9) is equipped with elastic gasket (10).
4. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: and a polytetrafluoroethylene backing plate (11) is arranged on the inner side of the curved surface central groove (4).
5. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: and polytetrafluoroethylene lining is arranged on the inner side of the upper chute (501) and the inner side of the lower chute (602).
6. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: both ends of the first elastic piece (504) and both ends of the second elastic piece (604) are provided with universal joints.
7. The high-load-bearing-capacity-based tensile shock insulation device according to claim 1, wherein: the damping filler (703) is a mixture of lead powder and steel slag.
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| CN107761556A (en) * | 2017-11-16 | 2018-03-06 | 北京工业大学 | Consume energy spacing variable curvature sliding friction shock isolating pedestal |
| CN110258813A (en) * | 2019-06-30 | 2019-09-20 | 华中科技大学 | A kind of high-bearing capacity tensile shock isolation device with two-way sliding support |
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| JP2006514181A (en) * | 2003-02-06 | 2006-04-27 | ヘルツフェルド、ロジャー | A bearing structure to reduce the transmission of shock and / or vibration forces, especially in buildings exposed to earthquake loads |
| CN202298447U (en) * | 2011-09-06 | 2012-07-04 | 同济大学 | Micro particle damping support |
| CN203741993U (en) * | 2014-03-11 | 2014-07-30 | 株洲时代新材料科技股份有限公司 | Friction pendulum type seismic isolation support provided with anti-drawing devices |
| CN210067112U (en) * | 2019-03-29 | 2020-02-14 | 华中科技大学 | High-surface-pressure energy-consumption shock isolation device |
| CN109898681B (en) * | 2019-03-29 | 2024-03-19 | 华中科技大学 | High-bearing-capacity tensile energy-consumption shock insulation device |
| CN113882246A (en) * | 2021-11-22 | 2022-01-04 | 无锡圣丰建筑新材料有限公司 | Double-guide tensile anti-overturning shock insulation rubber support |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761556A (en) * | 2017-11-16 | 2018-03-06 | 北京工业大学 | Consume energy spacing variable curvature sliding friction shock isolating pedestal |
| CN110258813A (en) * | 2019-06-30 | 2019-09-20 | 华中科技大学 | A kind of high-bearing capacity tensile shock isolation device with two-way sliding support |
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