CN112145619B - Bridge lead core shock insulation rubber support - Google Patents
Bridge lead core shock insulation rubber support Download PDFInfo
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- CN112145619B CN112145619B CN202010990320.1A CN202010990320A CN112145619B CN 112145619 B CN112145619 B CN 112145619B CN 202010990320 A CN202010990320 A CN 202010990320A CN 112145619 B CN112145619 B CN 112145619B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
- F16F1/3735—Multi-part grommet-type resilient mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/3737—Planar, e.g. in sheet form
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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- Acoustics & Sound (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a bridge lead core shock insulation rubber support, it includes the last shrouding that top-down set gradually, lead core and lower shrouding, go up the shrouding and be provided with the horizontally steel sheet of a plurality of down between the shrouding, the steel sheet encloses the outside of establishing at the lead core, be provided with rubber layer and lower rubber layer between the adjacent steel sheet, go up the top on rubber layer position down, go up rubber layer and lower rubber layer and all be provided with a plurality ofly in the horizontal direction, the bottom surface on going up the rubber layer is the arc surface of upper concave, the top surface on lower rubber layer is recessed arc surface, the adjacent one side of going up the rubber layer and being close to each other is located the both sides on rubber layer top surface down respectively. This application has the atress situation of improving the support along vertical direction, improves the tensile properties's of support effect.
Description
Technical Field
The application relates to the field of bridge engineering, in particular to a lead core shock insulation rubber support for a bridge.
Background
Earthquake disasters are unpredictable and destructive compared with other natural disasters, and the earthquake often causes bridge collapse and buries people in bridge ruins. Therefore, all countries in the world are dedicated to well-done anti-seismic engineering of bridges, and lead core rubber supports are often adopted in the bridge engineering to improve the anti-seismic capacity of the bridges at present.
The existing lead core anti-seismic support comprises an upper sealing plate, a lead core and a lower sealing plate which are sequentially arranged from top to bottom, and a plurality of horizontal steel plates and rubber layers are arranged between the upper sealing plate and the lower sealing plate in a staggered mode.
Aiming at the related technologies, the inventor thinks that the existing lead core anti-seismic support has obvious shock absorption effect on the seismic action force in the horizontal direction, but has small shock absorption and isolation effect on the vertical seismic action force, and the rubber has better compression resistance and weak tensile resistance, so that the lead core rubber support is often subjected to tensile damage under the action of a vertical earthquake.
Disclosure of Invention
In order to improve the atress situation of support along vertical direction, improve the tensile property of support, this application provides a bridge lead core shock insulation rubber support.
The application provides a bridge lead core shock insulation rubber support adopts following technical scheme:
the utility model provides a bridge lead core shock insulation rubber support, last shrouding including top-down sets gradually, lead core and lower shrouding, go up the shrouding and be provided with the horizontally steel sheet of a plurality of down between the shrouding, the steel sheet encloses the outside of establishing at the lead core, be provided with rubber layer and lower rubber layer between the adjacent steel sheet, it is located the top on rubber layer down to go up the rubber layer, it all is provided with a plurality ofly with lower rubber layer in the horizontal direction to go up rubber layer, the bottom surface on going up the rubber layer is the arc surface of going up the concavity, the top surface on lower rubber layer is recessed arc surface, the adjacent both sides that go up one side that the rubber layer is close to each other and be located down on the rubber layer top surface respectively.
By adopting the technical scheme, because the bottom surface of the upper rubber layer is the concave arc surface, and the top surface of the lower rubber layer is the concave arc surface, a certain gap exists between the bottom surface of the upper rubber layer and the top surface of the lower rubber layer, so that a certain deformation allowance exists between the upper rubber layer and the lower rubber layer, the elastic force of the upper rubber layer and the lower rubber layer in the vertical direction is improved, the support can generate larger elastic deformation in the vertical direction, the stress condition of the support in the vertical direction is improved, and the tensile property of the support is improved.
Preferably, a plurality of upper rubber strips are fixedly arranged between the adjacent upper rubber layers, and a plurality of lower rubber strips are fixedly arranged between the adjacent lower rubber layers.
By adopting the technical scheme, the upper rubber strips are arranged between the adjacent upper rubber layers to fix the adjacent upper rubber layers, so that the upper rubber layers can be ensured to have good elastic deformation capacity along the horizontal direction, the connection strength between the adjacent upper rubber layers can be enhanced, and the upper rubber layers are prevented from being dislocated after being stressed; set up down the rubber strip between adjacent lower rubber layer, fix adjacent lower rubber layer, not only can guarantee down to have good elastic deformation ability along the horizontal direction between the rubber layer, can also play the strengthening effect to the joint strength between the adjacent lower rubber layer, avoid taking place the dislocation after the lower rubber layer atress to the bulk strength and the deformability of support have been improved.
Preferably, a plurality of vertical deformation holes are formed in the upper rubber layer and the lower rubber layer.
Through adopting above-mentioned technical scheme, all set up the deformation hole on last rubber layer and lower rubber layer for go up the rubber layer and all have certain deformation space in the rubber layer down, thereby make go up rubber layer and lower rubber layer can take place bigger elastic deformation when receiving the power of vertical direction, further improved the atress situation of support along vertical direction, improved the tensile strength of support.
Preferably, the top surface of the upper rubber layer and the bottom surface of the lower rubber layer are both horizontal surfaces.
By adopting the technical scheme, the top surface of the upper rubber layer and the bottom surface of the lower rubber layer are both set to be horizontal planes, so that the contact area between the upper rubber layer and the steel plate and the contact area between the lower rubber layer and the steel plate are increased, the possibility of deviation of the upper rubber layer and the lower rubber layer is reduced, and the compressive strength of the upper rubber layer and the lower rubber layer in the vertical direction is improved, so that the rigidity of the whole support in the vertical direction is improved, the stress condition of the support in the vertical direction is improved, and the possibility of instability of the support is reduced.
Preferably, the top surface of the upper rubber layer is a concave arc surface, and the bottom surface of the lower rubber layer is a concave arc surface.
Through adopting above-mentioned technical scheme, the top surface that will go up the rubber layer sets up to recessed arc surface, the bottom surface on lower rubber layer sets up to recessed arc surface, the thickness that makes in the middle of going up rubber layer and lower rubber layer all is less than the thickness of both sides, and go up rubber layer and lower rubber layer whole equal longitudinal symmetry, when going up rubber layer and lower rubber layer and receiving the power of vertical direction, go up the rubber layer, the top surface and the bottom surface on lower rubber layer are the one side and receive the pulling force, the another side receives pressure, make go up rubber layer and lower rubber layer have good resilience ability, can make go up rubber layer and lower rubber layer and resume natural state, thereby make the support have good reset ability, avoid the support to produce great residual deformation.
Preferably, the top surface of the upper rubber layer is an upward convex arc surface, and the bottom surface of the lower rubber layer is a downward convex arc surface.
Through adopting above-mentioned technical scheme, the top surface that will go up the rubber layer sets up to the arc surface of epirelief, the bottom surface on lower rubber layer sets up to the arc surface of epirelief, it is circular-arc to make go up the whole upward bending of rubber layer, lower rubber layer is whole circular-arc to be the downwarping, thereby make the top surface on last rubber layer and the bottom surface on lower rubber layer play the reinforcing action to the elastic deformation ability between last rubber layer and the lower rubber layer, the deformation allowance between rubber layer and the lower rubber layer has further been increased, the atress situation of support along vertical direction has been improved, the tensile strength of support has been improved.
Preferably, both sides of the bottom surface of the upper rubber layer are fixedly provided with upper fixing strips, and both sides of the bottom surface of the lower rubber layer are fixedly provided with lower fixing strips.
Through adopting above-mentioned technical scheme, all set up the fixed strip in the both sides on last rubber layer to the both sides on rubber layer all set up down the fixed strip down, not only can play the stiffening action to the rigidity on last rubber layer and lower rubber layer, can also play limiting displacement between last rubber layer and the lower rubber layer, avoid going up rubber layer and lower rubber layer and take place the dislocation, also avoid going up the both sides on rubber layer and lower rubber layer simultaneously and receive the damage easily, make the production and processing process on rubber layer and lower rubber layer more convenient moreover.
Preferably, be provided with spacing section of thick bamboo between shrouding and the last shrouding down, spacing section of thick bamboo encloses and establishes in the outside on steel sheet, last rubber layer and lower rubber layer, and spacing section of thick bamboo's bottom and shrouding fixed connection down leave the distance between spacing section of thick bamboo's top and the last shrouding.
Through adopting above-mentioned technical scheme, set up spacing section of thick bamboo in the outside on last rubber layer and lower rubber layer, can play limiting displacement to last rubber layer and lower rubber layer, avoid going up rubber layer and lower rubber layer and take place great deformation and dislocation, can also play the guard action to last rubber layer and lower rubber layer simultaneously, avoid going up rubber layer and lower rubber layer and exposing in the environment and receive destruction such as collision or corruption, prolonged the life of support. Leave the distance between the top of a spacing section of thick bamboo and the last shrouding, can be to leaving certain deformation allowance between a spacing section of thick bamboo and last shrouding, avoid a spacing section of thick bamboo to support along the deformation production influence of vertical direction.
Preferably, the deformation joint is formed in the limiting cylinder and penetrates through the height of the limiting cylinder.
Through adopting above-mentioned technical scheme, set up the movement joint on spacing section of thick bamboo, can make spacing section of thick bamboo leave the deformation allowance to the atress of support along the horizontal direction, avoid spacing section of thick bamboo to produce the influence to the deformation of support along the horizontal direction, also avoid spacing section of thick bamboo to receive great power along the horizontal direction.
Preferably, the deformation joint is spirally arranged on the limiting cylinder.
Through adopting above-mentioned technical scheme, set up the movement joint into the heliciform for spacing section of thick bamboo itself also has along the deformation allowance of vertical direction, has improved the deformability of spacing section of thick bamboo along vertical direction, further reduces the influence that the support produced to the deformation process of going up rubber layer, lower rubber layer along vertical direction, has improved the stress situation of support along vertical direction.
In summary, the present application includes at least one of the following beneficial technical effects:
the upper rubber layer and the lower rubber layer are arranged on the adjacent steel plates, so that the support can generate larger elastic deformation along the vertical direction, the stress condition of the support along the vertical direction is improved, and the tensile property of the support is improved;
by arranging the deformation holes, certain deformation spaces are formed in the upper rubber layer and the lower rubber layer, the stress condition of the support along the vertical direction is further improved, and the tensile property of the support is improved;
through setting up spacing section of thick bamboo, not only play limiting displacement to last rubber layer and lower rubber layer, can also play the guard action to last rubber layer and lower rubber layer, prolonged the life of support.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present application;
FIG. 2 is a cross-sectional view of embodiment 1 of the present application;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial sectional view of embodiment 2 of the present application;
fig. 5 is a partial sectional view of embodiment 3 of the present application.
Description of reference numerals: 1. an upper sealing plate; 2. a lead core; 3. a steel plate; 4. an upper rubber layer; 41. feeding a rubber strip; 42. an upper fixing strip; 43. a deformation hole; 5. a lower rubber layer; 51. a lower rubber strip; 52. a lower fixing strip; 6. a lower sealing plate; 7. a limiting cylinder; 71. and (4) deforming the joints.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a bridge lead core shock insulation rubber support.
Example 1:
referring to fig. 1 and 2, the bridge lead core 2 shock insulation rubber support package comprises an upper seal plate 1, a lead core 2 and a lower seal plate 6 which are sequentially arranged from top to bottom, a plurality of horizontal steel plates 3 are arranged between the upper seal plate 1 and the lower seal plate 6, an upper rubber layer 4 and a lower rubber layer 5 are arranged between the adjacent steel plates 3, and the upper rubber layer 4 is positioned at the top of the lower rubber layer 5.
Referring to fig. 2, the steel plate 3 is annular, and the steel plate 3 is fitted around the lead core 2 and abuts against the steel plate 3. Go up rubber layer 4 and lower rubber layer 5 and all be the ring form, go up rubber layer 4 and lower rubber layer 5 and all be provided with a plurality ofly on same horizontal plane, go up a plurality of rubber layer 4 and down rubber layer 5 on same horizontal plane and all overlap the cover with one heart and establish the outside of lead 2, and the internal diameter increases in proper order from inside to outside, all leaves the clearance between adjacent upper rubber layer 4 and adjacent lower rubber layer 5. A plurality of horizontal upper rubber strips 41 are uniformly fixed between the adjacent upper rubber layers 4, and a plurality of horizontal lower rubber strips 51 are uniformly fixed between the adjacent lower rubber layers 5.
When the support receives along the horizontal direction power, go up rubber layer 4 and lower rubber layer 5 and receive the shearing force effect, go up rubber strip 41 and play the connection effect to adjacent going up between the rubber layer 4, and make and have good elastic deformation ability along the horizontal direction between the rubber layer 4, lower rubber strip 51 guarantees the joint strength between the adjacent lower rubber layer 5, and make and have good elastic deformation ability along the horizontal direction between the lower rubber layer 5, avoid going up rubber layer 4 and lower rubber layer 5 and take place the dislocation, the bulk strength and the deformability of support have been improved.
Referring to fig. 3, the top surface of the upper rubber layer 4 is a horizontal surface and is abutted and fixed with the bottom surface of the steel plate 3, the longitudinal section of the bottom surface of the upper rubber layer 4 is an upwardly concave arc surface, the two sides of the bottom surface of the upper rubber layer 4 are both fixedly provided with an upper fixing strip 42, the upper fixing strip 42 is in a circular ring shape, and the two upper fixing strips 42 are respectively flush with the inner side surface and the outer side surface of the upper rubber layer 4. The bottom surface of the lower rubber layer 5 is a horizontal plane and is abutted and fixed with the top surface of the steel plate 3, the longitudinal section of the top surface of the lower rubber layer 5 is a concave arc surface, the two sides of the bottom surface of the lower rubber layer 5 are both fixedly provided with lower fixing strips 52, the lower fixing strips 52 are circular, and the two lower fixing strips 52 are respectively flush with the inner side surface and the outer side surface of the lower rubber layer 5. The upper rubber layers 4 and the lower rubber layers 5 are arranged in a staggered mode, and the sides, close to each other, of the adjacent upper rubber layers 4 are located on the inner side and the outer side of the top face of the lower rubber layer 5 respectively.
When the support receives force along the vertical direction, the upper rubber layer 4 and the lower rubber layer 5 receive tensile force or pressure, the arc surface of the bottom surface of the upper rubber layer 4 and the arc surface of the top surface of the lower rubber layer 5 enable a certain deformation allowance to exist between the upper rubber layer 4 and the lower rubber layer 5, and the elastic force of the upper rubber layer 4 and the lower rubber layer 5 along the vertical direction is improved, so that the stress condition of the support along the vertical direction is improved, and the tensile property and the compressive property of the support are improved.
Referring to fig. 2, a plurality of vertical deformation holes 43 are formed in the arc surfaces of the upper rubber layer 4 and the lower rubber layer 5, and the deformation holes 43 respectively penetrate through the thicknesses of the upper rubber layer 4 and the lower rubber layer 5. When the upper rubber layer 4 and the lower rubber layer 5 are subjected to vertical tensile force or pressure, the deformation holes 43 enable certain deformation spaces to be formed in the upper rubber layer 4 and the lower rubber layer 5, so that the upper rubber layer 4 and the lower rubber layer 5 can generate larger elastic deformation when receiving the vertical force, the stress condition of the support along the vertical direction is further improved, and the tensile property and the pressure resistance of the support are improved.
Referring to fig. 1, be provided with spacing section of thick bamboo 7 between lower shrouding 6 and the last shrouding 1, spacing section of thick bamboo 7 is cylindricly to enclose and establish in steel sheet 3, the outside on rubber layer 4 and lower rubber layer 5, the bottom of spacing section of thick bamboo 7 and 6 butts of shrouding down and fix, leaves the distance between the top of spacing section of thick bamboo 7 and the last shrouding 1. The deformation joint 71 is formed in the limiting barrel 7, the deformation joint 71 penetrates through the height of the limiting barrel 7, the deformation joint 71 is spiral, and the extension angle of the deformation joint 71 on the limiting barrel 7 is smaller than 90 degrees.
When the support receives along the power of horizontal direction, go up rubber layer 4 and lower rubber layer 5 atress and can take place certain deformation, spacing section of thick bamboo 7 plays limiting displacement to going up rubber layer 4 and lower rubber layer 5, avoids going up rubber layer 4 and lower rubber layer 5 and takes place the dislocation, and movement joint 71 makes spacing section of thick bamboo 7 leave along the horizontal direction and warp the surplus simultaneously, avoids spacing section of thick bamboo 7 to go up rubber layer 4 and lower rubber layer 5 along the deformation process production influence of horizontal direction.
When the support receives the power along vertical direction, go up rubber layer 4 and take place certain deformation along vertical direction with lower rubber layer 5, go up the shrouding 1 and change with the distance between the shrouding 6 down, go up the interval on shrouding 1 and spacing section of thick bamboo 7 top this moment and change, after last shrouding 1 and spacing section of thick bamboo 7 butt, movement joint 71 also makes spacing section of thick bamboo 7 leave along vertical direction and warp the surplus, avoids spacing section of thick bamboo 7 to go up rubber layer 4 and lower rubber layer 5 to produce the influence along vertical direction's deformation process.
The implementation principle of the embodiment 1 is as follows: when the support receives the force along the vertical direction, the upper rubber layer 4 and the lower rubber layer 5 receive the tensile force or the pressure, the arc surface of the bottom surface of the upper rubber layer 4 and the arc surface of the top surface of the lower rubber layer 5 enable a certain deformation allowance to exist between the upper rubber layer 4 and the lower rubber layer 5, and the deformation hole 43 enables the upper rubber layer 4 and the lower rubber layer 5 to have a certain deformation space, so that the elastic force of the upper rubber layer 4 and the lower rubber layer 5 along the vertical direction is greatly improved, the stress condition of the support along the vertical direction is improved, and the tensile strength and the compression resistance of the support are improved.
Example 2:
referring to fig. 4, the difference between this embodiment and embodiment 1 is that the longitudinal section of the top surface of the upper rubber layer 4 is a concave arc surface, two sides of the top surface of the upper rubber layer 4 are also fixedly provided with annular upper fixing strips 42, the two upper fixing strips 42 on the top surface of the upper rubber layer 4 are respectively flush with the inner side surface and the outer side surface of the upper rubber layer 4, and the two upper fixing strips 42 on the top surface of the upper rubber layer 4 are both abutted and fixed with the bottom surface of the steel plate 3; the longitudinal section of the bottom surface of the lower rubber layer 5 is an upwardly concave arc surface, the two sides of the bottom surface of the lower rubber layer 5 are also fixedly provided with annular lower fixing strips 52, the two lower fixing strips 52 on the bottom surface of the lower rubber layer 5 are respectively flush with the inner side surface and the outer side surface of the lower rubber layer 5, and the two lower fixing strips 52 on the bottom surface of the lower rubber layer 5 are both abutted and fixed with the top surface of the steel plate 3.
The implementation principle of the embodiment 2 is as follows: when the support receives the force along the vertical direction, the arc surface of the bottom surface of the upper rubber layer 4 and the arc surface of the top surface of the lower rubber layer 5 enable a certain deformation allowance to exist between the upper rubber layer 4 and the lower rubber layer 5, and the deformation hole 43 enables the upper rubber layer 4 and the lower rubber layer 5 to have a certain deformation space, so that the elastic force of the upper rubber layer 4 and the lower rubber layer 5 along the vertical direction is greatly improved, the stress condition of the support along the vertical direction is improved, the tensile strength and the compressive strength of the support are improved, meanwhile, the upper rubber layer 4, the top surface and the bottom surface of the lower rubber layer 5 are both subjected to tensile force, the other surface is subjected to pressure, the upper rubber layer 4 and the lower rubber layer 5 have good resilience, the upper rubber layer 4 and the lower rubber layer 5 can be restored to a natural state after being deformed, and the support has good resetting capability.
Example 3:
referring to fig. 5, the difference between this embodiment and embodiment 1 is that the longitudinal section of the top surface of the upper rubber layer 4 is an arc surface protruding upwards, two sides of the top surface of the upper rubber layer 4 are also fixedly provided with annular upper fixing strips 42, the two upper fixing strips 42 on the top surface of the upper rubber layer 4 are respectively flush with the inner side surface and the outer side surface of the upper rubber layer 4, the top surfaces of the two upper fixing strips 42 on the top surface of the upper rubber layer 4 are not lower than the top surface of the upper rubber layer 4, and the two upper fixing strips 42 on the top surface of the upper rubber layer 4 are both fixed to the bottom surface of the steel plate 3 in an abutting manner; the longitudinal section of the bottom surface of the lower rubber layer 5 is a downward convex arc surface, the two sides of the bottom surface of the lower rubber layer 5 are also fixedly provided with annular lower fixing strips 52, the two lower fixing strips 52 on the bottom surface of the lower rubber layer 5 are respectively flush with the inner side surface and the outer side surface of the lower rubber layer 5, the bottom surfaces of the two lower fixing strips 52 on the bottom surface of the lower rubber layer 5 are not higher than the bottom surface of the lower rubber layer 5, and the two lower fixing strips 52 on the bottom surface of the lower rubber layer 5 are both fixedly abutted to the top surface of the steel plate 3.
The implementation principle of the embodiment 3 is as follows: when the support receives the power along vertical direction, go up rubber layer 4 and lower rubber layer 5 and receive pulling force or pressure, go up rubber layer 4 and wholly be the circular-arc of kickup, lower rubber layer 5 wholly is the circular-arc of kickdown, make go up rubber layer 4 and lower rubber layer 5 have good elastic deformation ability, and go up and have certain deformation allowance between rubber layer 4 and the lower rubber layer 5 top, deformation hole 43 makes and all have certain deformation space in going up rubber layer 4 and the lower rubber layer 5, thereby greatly improved the elastic force along vertical direction of going up rubber layer 4 and lower rubber layer 5, the stress situation of support along vertical direction has been improved, the tensile and the compressive property of support have been improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a bridge lead core shock insulation rubber support, includes last shrouding (1), lead core (2) and lower shrouding (6) that top-down set gradually, its characterized in that: a plurality of horizontal steel plates (3) are arranged between the upper sealing plate (1) and the lower sealing plate (6), the steel plates (3) are arranged on the outer side of the lead core (2) in a surrounding manner, an upper rubber layer (4) and a lower rubber layer (5) are arranged between the adjacent steel plates (3), the upper rubber layer (4) is positioned at the top of the lower rubber layer (5), the upper rubber layer (4) and the lower rubber layer (5) are both arranged in a plurality of horizontal directions, the bottom surface of the upper rubber layer (4) is an upper concave arc surface, the top surface of the lower rubber layer (5) is a concave arc surface, the upper rubber layer (4) and the lower rubber layer (5) are both in a ring shape, the upper rubber layer (4) and the lower rubber layer (5) are both arranged in a plurality on the same horizontal plane, the upper rubber layer (4) and the lower rubber layer (5) on the same horizontal plane are both concentrically sleeved on the outer side of the lead core (2) and the inner diameter is sequentially increased from inside to outside, gaps are reserved between every two adjacent upper rubber layers (4) and between every two adjacent lower rubber layers (5), one side, close to each other, of each two adjacent upper rubber layers (4) is located on two sides of the top surface of the lower rubber layer (5), a plurality of horizontal upper rubber strips (41) are uniformly fixed between every two adjacent upper rubber layers (4), and a plurality of horizontal lower rubber strips (51) are uniformly fixed between every two adjacent lower rubber layers (5); both sides of the bottom surface of the upper rubber layer (4) are fixedly provided with upper fixing strips (42), and both sides of the bottom surface of the lower rubber layer (5) are fixedly provided with lower fixing strips (52); a plurality of vertical deformation holes (43) are formed in the upper rubber layer (4) and the lower rubber layer (5).
2. The bridge lead core vibration isolation rubber support according to claim 1, characterized in that: the top surface of the upper rubber layer (4) and the bottom surface of the lower rubber layer (5) are both horizontal surfaces.
3. The bridge lead core vibration isolation rubber support according to claim 1, characterized in that: the top surface of the upper rubber layer (4) is a concave arc surface, and the bottom surface of the lower rubber layer (5) is a concave arc surface.
4. The bridge lead core vibration isolation rubber support according to claim 1, characterized in that: the top surface of the upper rubber layer (4) is an upward convex arc surface, and the bottom surface of the lower rubber layer (5) is a downward convex arc surface.
5. The bridge lead core vibration isolation rubber support according to claim 1, characterized in that: be provided with spacing section of thick bamboo (7) down between shrouding (6) and last shrouding (1), the outside of establishing in steel sheet (3), last rubber layer (4) and lower rubber layer (5) is enclosed to spacing section of thick bamboo (7), the bottom and shrouding (6) fixed connection down of spacing section of thick bamboo (7), leaves the distance between the top of spacing section of thick bamboo (7) and last shrouding (1).
6. The bridge lead core vibration isolation rubber support according to claim 5, characterized in that: a deformation joint (71) is formed in the limiting barrel (7), and the deformation joint (71) penetrates through the height of the limiting barrel (7).
7. The bridge lead core vibration isolation rubber support saddle according to claim 6, wherein: the deformation joint (71) is spirally arranged on the limiting cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990320.1A CN112145619B (en) | 2020-09-18 | 2020-09-18 | Bridge lead core shock insulation rubber support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990320.1A CN112145619B (en) | 2020-09-18 | 2020-09-18 | Bridge lead core shock insulation rubber support |
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| Publication Number | Publication Date |
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| CN112145619A CN112145619A (en) | 2020-12-29 |
| CN112145619B true CN112145619B (en) | 2022-03-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8650808B2 (en) * | 2010-01-22 | 2014-02-18 | Percy Hooper | Curved surface building modules |
| CN204738222U (en) * | 2015-06-03 | 2015-11-04 | 王敏 | Bridge mobile support |
| CN205152782U (en) * | 2015-12-03 | 2016-04-13 | 核工业西南勘察设计研究院有限公司 | High -damp rubber support |
| CN208718138U (en) * | 2018-07-17 | 2019-04-09 | 中铁第一勘察设计院集团有限公司 | A kind of spacing-type tin core rubber earthquake isolation support |
| CN109162362A (en) * | 2018-10-25 | 2019-01-08 | 安徽建筑大学 | Elastic tensile rubber shock insulation support |
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2020
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