CN116927078A - Self-resetting high-strength high-damping rubber support - Google Patents
Self-resetting high-strength high-damping rubber support Download PDFInfo
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- CN116927078A CN116927078A CN202311048050.2A CN202311048050A CN116927078A CN 116927078 A CN116927078 A CN 116927078A CN 202311048050 A CN202311048050 A CN 202311048050A CN 116927078 A CN116927078 A CN 116927078A
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- 238000013016 damping Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 138
- 239000010959 steel Substances 0.000 claims abstract description 138
- 238000007789 sealing Methods 0.000 claims description 49
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 43
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a from high damping rubber support that restores to throne, includes upper bracket steel sheet (1) and lower support steel sheet (2), its characterized in that: the steel plate is characterized in that an upper support seal plate (3) is arranged at the bottom of the upper support steel plate (1), the bottom surface of the upper support seal plate (3) is provided with an upper seal plate convex surface (4), the upper surface of the lower support steel plate (2) is provided with a lower support seal plate (5), the upper surface of the lower support seal plate (5) is provided with a lower seal plate concave surface (6), a plurality of curved surface steel plates (7) are arranged between the upper support seal plate (3) and the lower support seal plate (5), and the steel plate structure is reasonable.
Description
Technical Field
The application relates to a bridge rubber support, in particular to a self-resetting high-strength high-damping rubber support, and belongs to the technical field of bridge shock absorption and isolation.
Background
Earthquake is one of frequent natural disasters, and people are unable to meet the natural disasters for a long time. The immediate cause of life and property loss from earthquakes is the violent vibration, destruction and collapse of the building. Since the twentieth century, human beings have continuously researched and explored the structure control technology of earthquake resistance, energy dissipation and vibration absorption of buildings, and have invented and created corresponding products and technologies.
The bridge support has great significance on the shock absorption and insulation of bridges, the bridge shock absorption and insulation rubber support is widely applied, and the existing bridge rubber support mainly comprises: shock-insulating (lead core) rubber support, high damping rubber support, etc. The rubber support adopts a structure of a planar steel plate and a rubber interlayer, and the planar steel plate has limited constraint on the rubber layer, so that the horizontal rigidity is weak, the damping is insufficient, and the energy consumption and shock absorption effects are not ideal. And the rubber support has poor capability of adapting to rotational deformation, and has insufficient resetting capability when deviating from an initial balance position.
For a long time, how to improve the mechanical properties of the shock insulation rubber support, such as energy consumption capability, horizontal rigidity, strength, resetting performance and the like, has been a general concern in the engineering world.
Disclosure of Invention
The application aims to overcome the defects that the existing various rubber supports are limited in horizontal rigidity, insufficient in rigidity and damping, poor in energy dissipation and shock absorption effect, poor in capability of adapting to rotational deformation in a vertical plane, insufficient in resetting capability after deviating from an initial balance position under the action of external force and the like, and provides a self-resetting high-strength high-damping rubber support.
In order to achieve the purpose of the application, the technical solution of the application is as follows: the utility model provides a from high-strength high damping rubber support of restoring to throne, includes upper bracket steel sheet and lower support steel sheet, the bottom of upper bracket steel sheet is provided with the support upper seal plate, and the bottom surface of support upper seal plate sets up to the upper seal plate convex surface, the upper surface of lower support steel sheet is provided with the support lower seal plate, and the upper surface of support lower seal plate sets up to the lower seal plate concave surface, is provided with a plurality of curved surface steel sheets between support upper seal plate and the support lower seal plate, and the curved surface opening of curved surface steel sheet up, is provided with the curved surface rubber layer between two adjacent parts in upper seal plate convex surface, a plurality of curved surface steel sheets and the lower seal plate concave surface, and be located between upper seal plate and the lower support steel sheet, the periphery of support upper seal plate, curved surface steel sheet and support lower seal plate is provided with the rubber protection layer.
Further, the bottom of the upper support steel plate is provided with a support upper sealing plate through a fixing bolt; the upper surface of the lower support steel plate is provided with a support lower sealing plate through a fixing bolt.
Further, the upper sealing plate of the support, the lower sealing plate of the support, the curved steel plate, the curved rubber layer and the rubber protection layer are vulcanized and arranged to be of an integral structure.
Further, the convex shape of the upper sealing plate is consistent with the upper surface shape of the curved steel plate, and the upper and lower surface shapes of the curved steel plate are consistent with the concave shape of the lower sealing plate.
Further, the curved steel plate is of a spherical steel plate structure, and the upper surface and the lower surface of the curved steel plate are spherical surfaces with identical shapes.
Further, the curved steel plate is composed of a central plane round steel plate and a peripheral conical surface steel plate, and the upper surface and the lower surface of the curved steel plate are identical in shape.
Further, the curved rubber layer is mixed among the upper sealing plate of the support, the plurality of curved steel plates and the lower sealing plate of the support, and the shape of the upper surface and the lower surface of the curved rubber layer is the same as the shape of the surface of the adjacent steel plate.
The beneficial effects of the application are as follows:
1. the middle steel plate adopts a curved surface structure with an upward opening, and simultaneously adopts an upper support sealing plate with a convex bottom surface and a lower support sealing plate with a concave upper surface, adjacent components form a convex-concave matched contact surface, and the upper support sealing plate, the alternately stacked curved steel plate layers, the rubber layers and the lower support sealing plate are vulcanized into an integral support at high temperature and high pressure. The curved surface steel plate is adopted, so that the contact area of the steel plate layer and the rubber layer is increased, the constraint force of the steel plate layer on the rubber layer is increased, meanwhile, the curved surface opening of the steel plate is upward, so that positive pressure between the steel plate layer and the rubber layer points to the curved surface center, and therefore, the support needs larger acting force for generating unit displacement, namely, the horizontal rigidity or the shear rigidity of the support is increased, the compressive strength and the shear strength of the support are also increased, and the damping ratio of the support is also improved.
2. Due to the adoption of the curved surface steel plate structure with the upward opening, under the action of vertical load, the reaction force between the steel plate layer and the rubber layer always points to the center of the curved surface, and the mutually overlapped steel plate layers and the rubber layer form stable balance, namely the resetting capability of the rubber support is enhanced.
3. The curved surface steel plate structure is adopted, so that the rotation capability of the rubber support around the horizontal shaft is enhanced, namely, the rubber support can rotate in a vertical plane more than a common support, the rubber support can adapt to the rotation deformation of the beam body more, and the additional internal force generated by the transition constraint of the support to the beam body is reduced.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the present application.
Fig. 2 is a schematic structural view of the components of fig. 1.
Fig. 3 is a schematic structural view of a second embodiment of the present application.
Fig. 4 is a schematic structural view of the components of fig. 3.
Fig. 5 is a plan view of the curved steel plate of fig. 3.
In the figure: the steel plate comprises an upper support steel plate 1, a lower support steel plate 2, an upper support sealing plate 3, an upper sealing plate convex surface 4, a lower support sealing plate 5, a lower sealing plate concave surface 6, a curved steel plate 7, a curved rubber layer 8, a rubber protection layer 9, a central plane 10 and fixing bolts 11.
Description of the embodiments
The application is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 5, the self-resetting high-strength high-damping rubber bearing of the present application comprises an upper bearing steel plate 1 and a lower bearing steel plate 2, and is characterized in that: the bottom of upper bracket steel sheet 1 is provided with shrouding 3 on the support, and the bottom surface of shrouding 3 sets up to shrouding convex surface 4 on the support, the upper surface of lower bracket steel sheet 2 is provided with shrouding 5 under the support, and shrouding 5's upper surface sets up to shrouding concave surface 6 under the support, is provided with a plurality of curved surface steel sheets 7 between shrouding 3 under the support and the shrouding 5 under the support, and curved surface opening of curved surface steel sheet 7 up, is provided with curved surface rubber layer 8 between two adjacent parts in upper shrouding convex surface 4, curved surface steel sheet 7 and the shrouding concave surface 6 down, and the periphery that just is located shrouding 3 on the support, curved surface steel sheet 7 and shrouding 5 under the support is provided with rubber protection layer 9 between upper bracket steel sheet 1 and the lower bracket steel sheet 2.
The bottom of the upper support steel plate 1 is provided with a support upper sealing plate 3 through a fixing bolt 11; the upper surface of the lower support steel plate 2 is provided with a support lower sealing plate 5 through a fixing bolt 11.
The upper sealing plate 3, the lower sealing plate 5, the curved steel plate 7, the curved rubber layer 8 and the rubber protection layer 9 are vulcanized and arranged to be of an integral structure.
The convex shape of the upper sealing plate convex surface 4 is consistent with the upper surface shape of the curved surface steel plate 7, the lower surface shape of the curved surface steel plate 7 is consistent with the concave shape of the lower sealing plate concave surface 6, and the upper surface shape and the lower surface shape of the curved surface steel plate 7 are consistent.
The curved steel plate 7 is of a spherical steel plate structure, and the upper surface and the lower surface of the curved steel plate 7 are spherical surfaces with identical shapes.
The curved steel plate 7 is composed of a central plane round steel plate 10 and a peripheral conical surface steel plate, and the upper surface and the lower surface of the curved steel plate 7 are identical in shape.
The curved surface rubber layer 8 is mixed among the support upper sealing plate 3, the plurality of curved surface steel plates 7 and the support lower sealing plate 5, and the shape of the upper surface and the lower surface of the curved surface rubber layer 8 is the same as the shape of the surface of the adjacent steel plate.
As shown in figures 1 and 2, the upper support steel plate 1 and the lower support steel plate 2 adopted by the application have the same structure as the prior art, and are different from the prior art, the application creatively improves on the basis of the prior common rubber support, adopts a curved steel plate structure with an upward opening, adopts a support upper sealing plate with a convex bottom surface and a support lower sealing plate with a concave upper surface, adjacent components form a convex-concave matched contact surface, and the curved steel plate layers and the rubber layers are alternately stacked, so that the self-resetting high-strength high-damping rubber support can provide rigidity and damping which are much higher than those of the common rubber support. Meanwhile, the curved surface steel plate 7 adopted by the application improves the rotation capacity of the support, effectively solves the problem of transition constraint of the common rubber support on the rotation of the beam body in the vertical plane, can better adapt to the rotation deformation requirement of the beam body, has good self-resetting capacity, and can enable the bridge support to be easier to automatically reset when deviating from the balance position by virtue of the unique structural form of the application. The specific structure and principle are as follows:
the bottom of upper bracket steel sheet 1 passes through fixing bolt 11 and installs shrouding 3 on the support, and shrouding 5 under the support is installed through fixing bolt 11 to the upper surface of lower bracket steel sheet 2, and the bottom surface of shrouding 3 sets up to shrouding convex surface 4 on the support, and shrouding 5's upper surface sets up to shrouding concave surface 6 under the support, and shrouding 3 and shrouding 5 are the metal sheet under the support on the support.
The multi-layer curved surface steel plates 7 are arranged between the upper support sealing plate 3 and the lower support sealing plate 5, the multi-layer curved surface steel plates 7 and the curved surface rubber layers 8 are alternately stacked, the curved surface rubber layers 8 are arranged between the upper sealing plate convex surface 4 and the curved surface steel plates 7 and between the curved surface steel plates 7 and the lower sealing plate concave surface 5, and the curved surface rubber layers 8 have good elasticity and damping performance. In addition, rubber protection layers 9 are arranged between the upper support steel plate 1 and the lower support steel plate 2 and positioned on the peripheries of the support upper sealing plate 3, the curved surface steel plate 7 and the support lower sealing plate 5, and the rubber protection layers 9 wrap and protect the support upper sealing plate 3, the curved surface steel plates 7 and the curved surface rubber layers 8 which are alternately stacked and the support lower sealing plate 5 from the periphery. The upper sealing plate 3 of the support, the lower sealing plate 5 of the support, the curved steel plate 7, the curved rubber layer 8 and the rubber protection layer 9 are vulcanized into an integral structure.
The structural forms of the curved surface steel plates 7 are various, correspondingly, the contact surfaces of the curved surface steel plates 7, the curved surface rubber layers 8 and the support lower sealing plates 5 which are alternately stacked on the support upper sealing plates 3 are also various corresponding shapes, and the curved surface steel plates 7 mainly adopt the following two structural forms:
example 1: the curved surface steel plate 7 is of a spherical surface steel plate structure, the upper surface and the lower surface of the curved surface steel plate 7 are spherical surfaces with identical shapes, and the lowest point of the curved surface steel plate 7 is located on the axis of the rubber support, so that the support can be quickly and automatically reset after being stressed and deviated from the balance position.
Example 2: the curved surface steel plate 7 is in a structure of a central plane round steel plate 10+ and a peripheral conical surface steel plate, the upper surface and the lower surface of the curved surface steel plate 7 are completely identical in shape, the central plane round steel plate 10 is located at the lowest position of the curved surface steel plate 7, and the center of the round steel plate 10 is located on the axis of the rubber support.
In the above embodiment and other embodiments, the convex shape of the upper sealing plate convex surface 4 corresponds to the upper surface shape of the curved surface steel plate 7, and the upper and lower surface shapes of the curved surface steel plate 7 correspond to the concave shape of the lower sealing plate concave surface 6. In the vulcanization process, the surface shape of the curved rubber layer 8 interposed between the steel plates becomes identical to the shape of the adjacent steel plates, so that the compressive stress of the support of the present application when pressed in the vertical direction is ensured to be approximately the same. The rigidity, the strength, the damping and the rotation capacity of the support can be adjusted by adjusting the curvature of the curved steel plate 7.
The working principle and the process of the application are as follows: under the action of external force such as earthquake, the rubber support generates shear deformation, the upper support steel plate 1 and the lower support steel plate 2 generate relative displacement, at the moment, the curved steel plates 7 deviate and rotate to a certain extent, the curved steel plates 7 deviate from the balance positions to different extents, at the moment, the curved rubber layer 8 and the rubber protection layer 9 generate elastic deformation or plastic deformation to a certain extent, after the action of external force such as earthquake is finished, under the action of upper load, the upper support plate, the upper support sealing plate and the curved steel plates which are displaced automatically move to the initial balance positions due to the upward curved structure of the opening of the application, and the automatic reset is realized, and the shock absorption and energy consumption are realized in the process.
The foregoing is a further detailed description of the present application in connection with the specific embodiments, and it is not intended to limit the practice of the application to such descriptions, but rather it is intended to cover all such alternatives, modifications, and variations as may be included within the spirit and scope of the application.
Claims (7)
1. The utility model provides a from high damping rubber support that restores to throne, includes upper bracket steel sheet (1) and lower support steel sheet (2), its characterized in that: the bottom of upper bracket steel sheet (1) is provided with shrouding (3) on the support, and the bottom surface of shrouding (3) sets up to shrouding convex surface (4) on the support, the upper surface of lower support steel sheet (2) is provided with shrouding (5) under the support, and the upper surface of shrouding (5) is provided with shrouding concave surface (6) under the support, is provided with a plurality of curved surface steel sheets (7) between shrouding (3) under the support and support, and the curved surface opening of curved surface steel sheet (7) up, is provided with curved surface rubber layer (8) between adjacent two parts in upper shrouding convex surface (4), curved surface steel sheet (7) and lower shrouding concave surface (6), and be located between upper bracket steel sheet (1) and the lower support steel sheet (2) and be provided with rubber protection layer (9) in the periphery of shrouding (5) under curved surface steel sheet (7) and the support.
2. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the bottom of the upper support steel plate (1) is provided with a support upper sealing plate (3) through a fixing bolt (11); the upper surface of the lower support steel plate (2) is provided with a support lower sealing plate (5) through a fixing bolt (11).
3. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the upper sealing plate (3), the lower sealing plate (5), the curved steel plate (7), the curved rubber layer (8) and the rubber protection layer (9) are vulcanized and arranged to be of an integral structure.
4. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the convex shape of the upper sealing plate convex surface (4) is consistent with the upper surface shape of the curved surface steel plate (7), the lower surface shape of the curved surface steel plate (7) is consistent with the concave shape of the lower sealing plate concave surface (6), and the upper surface shape and the lower surface shape of the curved surface steel plate (7) are consistent.
5. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the curved surface steel plate (7) is of a spherical surface steel plate structure, and the upper surface and the lower surface of the curved surface steel plate (7) are spherical surfaces with identical shapes.
6. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the curved steel plate (7) is composed of a central plane round steel plate (10) and a peripheral conical surface steel plate, and the upper surface and the lower surface of the curved steel plate (7) are identical in shape.
7. The self-resetting high-strength high-damping rubber support according to claim 1, wherein: the curved surface rubber layer (8) is mixed among the upper sealing plate (3) of the support, the plurality of curved surface steel plates (7) and the lower sealing plate (5) of the support, and the shape of the upper surface and the lower surface of the curved surface rubber layer (8) is the same as the shape of the surface of the adjacent steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311048050.2A CN116927078A (en) | 2023-08-21 | 2023-08-21 | Self-resetting high-strength high-damping rubber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311048050.2A CN116927078A (en) | 2023-08-21 | 2023-08-21 | Self-resetting high-strength high-damping rubber support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116927078A true CN116927078A (en) | 2023-10-24 |
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ID=88389808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311048050.2A Pending CN116927078A (en) | 2023-08-21 | 2023-08-21 | Self-resetting high-strength high-damping rubber support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116927078A (en) |
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2023
- 2023-08-21 CN CN202311048050.2A patent/CN116927078A/en active Pending
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