CN110984392A - Nested multifunctional shock insulation rubber support - Google Patents
Nested multifunctional shock insulation rubber support Download PDFInfo
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- CN110984392A CN110984392A CN201911171159.9A CN201911171159A CN110984392A CN 110984392 A CN110984392 A CN 110984392A CN 201911171159 A CN201911171159 A CN 201911171159A CN 110984392 A CN110984392 A CN 110984392A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
Abstract
The invention discloses a nested multifunctional shock insulation rubber support which comprises a vertical shock insulation assembly and a horizontal shock insulation assembly embedded into the vertical shock insulation assembly; the vertical vibration isolation assembly adopts thick laminated rubber, directly bears the vertical load of the upper structure and provides vertical low rigidity required for isolating environmental vibration; the horizontal shock insulation assembly adopts thin laminated rubber, can generate horizontal shearing deformation in cooperation with the vertical shock insulation assembly, and provides horizontal restoring force and damping required by earthquake isolation; the horizontal shock insulation assembly does not directly bear the vertical load of the upper part, buckling restrained constraint is provided for the vertical shock insulation assembly with high flexibility, and rollover or buckling instability of the shock insulation support with high flexibility is avoided. The nested multifunctional shock insulation rubber support can play a role in isolating environmental vibration and earthquake and has higher deformation stability.
Description
Technical Field
The invention relates to a support, in particular to a nested multifunctional shock insulation rubber support.
Background
With the rapid development of the urbanization process and the modern industry, various rail and road traffic is more and more intensive, various production activities with the excitation effect are more and more, the generated environmental vibration not only can reduce the comfort level of adjacent civil engineering facilities, but also can cause long-term accumulated damage or fatigue of old structures, historical buildings and valuables or influence the normal use of instruments and equipment, and meanwhile, the potential earthquake risk also threatens the safety of the facilities and the equipment. The adopted seismic isolation technology is an effective way for solving the problems, the seismic isolation support is a necessary part for implementing the seismic isolation technology, and the used seismic isolation support needs to have high bearing capacity, high vibration isolation flexibility, high stability and large deformation function under the action of an earthquake to comprehensively solve the problems.
However, it is difficult for the conventional single seismic isolation bearing to have the above functions at the same time. Firstly, the vertical vibration isolation function must be considered for isolating environmental vibration, the vertical vibration isolation support with high flexibility has low vertical rigidity and low horizontal rigidity, and lateral buckling instability is easy to occur under the action of a larger vertical load.
The three-dimensional vibration isolation support can achieve vertical vibration isolation (shock) and horizontal vibration isolation (shock), and is characterized in that a single horizontal vibration isolation support and a single vertical vibration isolation support are vertically connected in series and stacked, for example, the invention patent with the application publication number of CN108842919A discloses a three-dimensional vibration isolation support which comprises a horizontal vibration isolation part and a vertical vibration isolation part which are vertically connected in series and stacked together, wherein the horizontal vibration isolation part comprises lead core laminated rubber, a rubber protective layer which is coated and attached around the lead core laminated rubber, and an upper connecting layer I and a lower connecting layer I which are respectively and fixedly connected to the top surface and the bottom surface of the lead core laminated rubber; the vertical shock insulation part comprises a thick meat rubber support, an upper connecting layer II and a lower connecting layer II, wherein the upper connecting layer II and the lower connecting layer II are fixedly connected to the top surface and the bottom surface of the thick meat rubber support respectively. The effect of isolating transverse vibration of the lead core laminated rubber is self-evident, the thick meat rubber is suitable for being made into a vertical shock isolation support, a vertical through hole is formed in the center of the thick meat rubber support, and a vertical damping structure is arranged in the vertical through hole to assist in absorbing energy. Vertical shock insulation and horizontal shock insulation can be realized through vertical shock insulation portion and horizontal shock insulation portion, make three-dimensional isolation bearing has the effect of keeping apart three-dimensional vibrations. However, such three-dimensional seismic isolation mounts have the following disadvantages:
(1) the vertical shock insulation part and the horizontal shock insulation part in the three-dimensional shock insulation support are vertically stacked in series, so that the vertical shock insulation part and the horizontal shock insulation part bear the same upper structure load, the allowable surface pressure of the vertical shock insulation part and the horizontal shock insulation part is different, for example, the allowable surface pressure of thick rubber is much smaller than that of traditional thin laminated rubber, so that the designed shock insulation support is designed according to small surface pressure, the material waste is caused, the horizontal shock insulation effect is sacrificed, or the large support part is adopted to be connected with the small support part in series, and a strong punching effect is formed on the large support part.
(2) Because the vertical shock insulation parts in the three-dimensional shock insulation support are independent, a horizontal direction rigid limiting device is required to be additionally arranged to completely limit the horizontal shearing deformation of the three-dimensional shock insulation support, the vertical static friction force caused by rigid limiting contact cannot be completely avoided, and the support only generates shock insulation movement on the premise of overcoming the vertical static friction force, so that the micro environmental vibration is propagated through the rigid contact part, and the shock insulation effect of the support on the environmental vibration is obviously reduced or even fails.
(3) Because the vertical shock insulation part and the horizontal shock insulation part in the three-dimensional shock insulation support adopt a vertical series stacking mode, the height of the support is greatly increased, and the integral stability of the support under the action of a use load, particularly a horizontal seismic load is obviously reduced compared with that of the traditional support (P- △ effect).
(4) Because the vertical shock insulation part and the horizontal shock insulation part in the three-dimensional shock insulation support adopt a vertical series connection stacking mode, the size and the installation space of the support are obviously increased, and higher requirements are provided for the height and the space of a shock insulation layer to be reserved for civil engineering facilities or equipment.
Disclosure of Invention
The invention aims to better overcome the defects and provide a nested multifunctional shock insulation rubber support which can play a role in environmental shock insulation and a role in earthquake shock insulation and can still keep the overall stability under the actions of high bearing capacity and large earthquake deformation. In addition, the multifunctional shock insulation rubber support also has the advantages of relatively small size and integration.
The technical scheme for solving the technical problems is as follows:
a nested multifunctional shock insulation rubber support comprises a vertical shock insulation assembly and a plurality of horizontal shock insulation assemblies embedded into the vertical shock insulation assembly, wherein the upper end of the vertical shock insulation assembly is connected with an upper structure, and the lower end of the vertical shock insulation assembly is connected with a lower structure; one end of the horizontal shock insulation assembly is a fixed end, the fixed end is connected with the upper structure or the lower structure, and the other end of the horizontal shock insulation assembly is a free end; the vertical vibration isolation assembly is provided with a middle hole matched with the horizontal vibration isolation assembly at the position embedded into the horizontal vibration isolation assembly; wherein the vertical vibration isolation assembly comprises a first rubber mount body; the horizontal shock insulation assembly comprises a second rubber support body and a damping member vertically embedded in the second rubber support body, wherein the thickness of laminated rubber in the first rubber support body is larger than that of laminated rubber in the second rubber support body.
Preferably, the first rubber support body comprises a first upper sealing steel plate, a first lower sealing steel plate and a plurality of layers of first laminated rubbers arranged between the first upper sealing steel plate and the first lower sealing steel plate, wherein a first inner steel plate is arranged between two adjacent layers of the first laminated rubbers.
Preferably, the second rubber support body comprises a second upper sealing steel plate, a second lower sealing steel plate and a plurality of layers of second laminated rubbers arranged between the second upper sealing steel plate and the second lower sealing steel plate, wherein a second inner steel plate is arranged between two adjacent layers of the second laminated rubbers; the damping member is vertically embedded into the horizontal shock insulation assembly and sequentially penetrates through a second upper seal steel plate, a second laminated rubber and a second lower seal steel plate of the horizontal shock insulation assembly from top to bottom.
Preferably, the damping member can be made of lead material, and other damping materials can also be adopted.
Preferably, the first laminated rubber and the second laminated rubber can adopt natural rubber, high-damping rubber and other artificially synthesized flexible materials.
Preferably, the fixed ends of the vertical vibration isolation assembly and the horizontal vibration isolation assembly share an upper connecting plate or a lower connecting plate and are connected with the upper structure through the upper connecting plate or connected with the lower structure through the lower connecting plate; the first upper seal steel plate and the upper connecting plate and the first lower seal steel plate and the lower connecting plate of the vertical vibration isolation assembly are connected or welded through bolts; the fixed end of the horizontal shock insulation assembly is connected with the connecting plate through a bolt or welded, and a vertical telescopic deformation gap is reserved between the free end and the corresponding connecting plate.
Preferably, the fixed ends of the vertical vibration isolation assembly and the horizontal vibration isolation assembly are directly connected with the connecting structure. The first upper sealing layer steel plate in the vertical vibration isolation assembly is connected with the upper structure, and the first lower sealing layer steel plate is connected with the lower structure; a fixed end in the horizontal shock insulation assembly is connected with the connecting structure, and a vertical telescopic deformation gap is reserved between the free end and the connecting structure.
Preferably, the first rubber mount body and the second rubber mount body are integrally vulcanized and molded at the same time, or are prepared after being vulcanized and molded separately.
Preferably, the cross section of the first rubber support body and the cross section of the second rubber support body are circular, rectangular or other shapes.
Preferably, the horizontal vibration isolation assembly is single, and the single horizontal vibration isolation assembly is arranged at the axis position of the vertical vibration isolation assembly.
Preferably, the number of the horizontal vibration isolation assemblies is multiple, and the multiple horizontal vibration isolation assemblies are distributed at multiple different positions of the vertical vibration isolation assembly.
The nested multifunctional shock insulation rubber support has the working principle that:
when the vertical vibration isolation assembly in the multifunctional vibration isolation rubber support works, the upper end of the vertical vibration isolation assembly is connected with an upper structure (such as a building structure), the lower end of the vertical vibration isolation assembly is connected with a lower structure (such as the ground), the vertical vibration isolation assembly is compressed and deformed under the vertical load action of the upper structure, and because sufficient telescopic clearance is arranged between the free end of the horizontal vibration isolation assembly and the upper structure or the lower structure, the free end of the horizontal vibration isolation assembly is prevented from contacting with the upper structure or the lower structure after the vertical compression deformation of the support, so that the horizontal vibration isolation assembly does not bear the vertical load, and the vertical rigidity of the horizontal vibration isolation assembly does not influence the vertical flexibility and the low-frequency vibration isolation performance of the nested multifunctional vibration isolation rubber support, therefore, the horizontal vibration isolation assembly can adopt a thin laminated rubber structure with high vertical rigidity but good. The horizontal shock insulation assembly is embedded into the vertical shock insulation assembly, so that a lateral buckling restrained effect is formed on the vertical shock insulation assembly with high flexibility and low stability, the support is enabled to deform uniformly under the vertical load and horizontal shock insulation deformation effect, integral buckling is not generated, and higher bearing capacity, deformation capacity and stability are maintained.
As the lateral buckling prevention measure is adopted, the first laminated rubber of the vertical vibration isolation assembly can adopt thick laminated rubber with low vertical rigidity, the rubber layer is uniformly deformed under the action of vertical load, and the thickness of the rubber layer is large, so that the vertical vibration isolation frequency of the vertical vibration isolation assembly is greatly reduced compared with that of the existing laminated rubber support, and most of environmental vibration transmitted from a lower structure to an upper structure is isolated. In addition, because the vertical vibration isolation assembly is not required to be provided with any contact type rigid limiting device, the propagation of environmental vibration to an upper structure through the contact part of the rigid limiting device is completely avoided, and the effect of isolating the environmental vibration is improved.
When an earthquake occurs, the horizontal shock isolation assembly and the vertical shock isolation assembly cooperate to generate horizontal shearing deformation, and the buckling-restrained action of the horizontal shock isolation assembly enables the nested multifunctional shock isolation rubber support to be uniformly deformed and not easy to buckle, so that the overall working appearance of the nested multifunctional shock isolation rubber support is basically consistent with that of the traditional laminated rubber shock isolation support for isolating the earthquake, and the shock isolation effect is achieved. And because the thin laminated rubber is adopted, damping materials such as lead cores and the like can be embedded into the horizontal shock insulation assembly as required, so that the nested multifunctional shock insulation rubber support has the energy consumption function like the traditional lead core rubber support. In addition, the vertical vibration isolation assembly has the characteristic of low vertical rigidity, so that the nested multifunctional vibration isolation rubber support also has a certain vibration isolation effect on vertical earthquakes, the multifunctional vibration isolation rubber support can be used as a reliable vibration isolation device to bear the earthquake load effect, and the support function is maintenance-free after the earthquake.
In addition, because the horizontal vibration isolation assembly is embedded into the vertical vibration isolation assembly, the whole size of the support can be reduced, the height of the support can be reduced, the whole stability of the support is improved, the allowable surface pressure of the laminated rubber is reasonably used, the material of the support is saved, and the whole height and the manufacturing cost of a vibration isolation layer are reduced.
Compared with the prior art, the invention has the following beneficial effects:
1. compared with the existing thick-laminated or thick-flesh type laminated rubber support, the nested multifunctional shock-isolating rubber support is a horizontal shock-isolating component embedded in thick-laminated rubber (namely the first laminated rubber in the first rubber support body), and forms lateral buckling-restrained constraint on the thick-laminated rubber, so that the thick-laminated rubber deforms uniformly under the action of load, the stability and the bearing capacity of the vertical shock-isolating component are obviously improved, the thickness of the first laminated rubber of the vertical shock-isolating component is thicker than that of the existing thick-laminated or thick-flesh type laminated rubber support, the vertical rigidity is lower, and the environmental shock-isolating effect is improved.
2. In order to avoid buckling instability of the existing thick-laminated or thick-meat-type laminated rubber support under the action of large vertical load and horizontal earthquake deformation, a horizontal rigid limiting device is additionally arranged to completely limit horizontal shearing deformation of the existing thick-laminated or thick-meat-type laminated rubber support, so that not only is the horizontal shock insulation function sacrificed, but also small environmental vibration can be transmitted to an upper structure through a rigid contact part of the rigid limiting device, and the shock insulation effect of the existing thick-laminated or thick-meat-type laminated rubber support on the environmental vibration is obviously reduced and even fails. The nested multifunctional shock-insulation rubber support provided by the invention adopts the embedded thin laminated rubber (namely the second laminated rubber in the second rubber support body) to play a role in preventing buckling of the thick laminated rubber, and a rigid limiting device is not required to be added, so that the horizontal shock-insulation deformation is not influenced, any rigid limiting contact is avoided, the path of propagation of environmental vibration through the contact part of the rigid limiting device is completely isolated, and the shock-insulation effect is improved.
3. The conventional thick-laminated or thick-flesh type laminated rubber support cannot form uniform deformation restraint on damping materials such as a lead core and the like embedded in the support when the support is horizontally sheared and deformed due to overlarge interval of the inner steel plates, so that the damping shearing behavior of the damping materials is unstable. According to the nested multifunctional shock insulation rubber support, the damping material is still embedded in the thin laminated rubber (namely the second laminated rubber of the second rubber support), so that uniform deformation constraint is obtained, and the damping effect can be stably exerted.
4. The existing three-dimensional rubber shock insulation support adopting a vertical series stacking mode has large difference of allowable surface pressure of a vertical shock insulation part and a horizontal shock insulation part, the allowable surface pressure of the used thick rubber is much smaller than that of the thin laminated rubber, so that the designed shock insulation support is designed according to small surface pressure to cause material waste and sacrifice horizontal shock insulation effect, or a large support part is adopted to be connected with a small support part in series to form strong punching effect on the large support part, and the stability is poor. The nested multifunctional shock insulation rubber support adopts a structural form that the horizontal shock insulation assembly is embedded into the vertical shock insulation assembly, so that the thin laminated rubber (namely the second laminated rubber of the second rubber support) does not directly bear the load of an upper structure, the material waste caused by the design of the thin laminated rubber according to small surface pressure is avoided, and the adverse support punching effect is also avoided.
5. Compared with the existing three-dimensional shock insulation rubber support adopting a vertical series stacking mode, the nested multifunctional shock insulation rubber support not only can reduce the overall volume of the support, but also can reduce the height of the support, improve the overall stability of the support, reasonably use the allowable surface pressure of laminated rubber, reduce the material of the support and reduce the overall height and cost of a shock insulation layer due to the adoption of the structural mode of embedding the horizontal shock insulation assembly into the vertical shock insulation assembly.
6. The nested multifunctional shock insulation rubber support can realize the shock insulation function to the environmental vibration and the shock insulation function to the earthquake action under the condition of keeping the integral stability, has high bearing capacity and strong anti-buckling stability, and has good application prospect.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the nested multifunctional seismic isolation rubber support.
FIG. 2 is a schematic structural diagram of a second embodiment of the nested multifunctional seismic isolation rubber support.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1, the nested multifunctional vibration isolation rubber support comprises a vertical vibration isolation assembly 1 and a plurality of horizontal vibration isolation assemblies 2 embedded into the vertical vibration isolation assembly 1, wherein the horizontal vibration isolation assemblies 2 are single, and the single horizontal vibration isolation assembly 2 is embedded in the axis position of the vertical vibration isolation assembly 1; the upper end of the vertical vibration isolation assembly 1 is connected with the upper structure through an upper connecting plate, the lower end of the vertical vibration isolation assembly 1 is connected with the lower structure through a lower connecting plate, and the height of the vertical vibration isolation assembly 1 is greater than that of the horizontal vibration isolation assembly 2; the lower end of the horizontal shock insulation component 2 is a fixed end, the upper end of the horizontal shock insulation component is a free end, and a gap is reserved between the free end and the upper connecting plate; a middle hole matched with the horizontal vibration isolation assembly 2 is formed in the position, in contact with the horizontal vibration isolation assembly 2, of the vertical vibration isolation assembly 1; wherein, the vertical vibration isolation assembly 1 comprises a first rubber support body; horizontal shock insulation subassembly 2 includes the second rubber support body, and along vertical embedding this internal lead 3 of second rubber support. The thickness of the laminated rubber in the first rubber mount body is significantly greater than the thickness of the laminated rubber in the second rubber mount body.
Referring to fig. 1, the first rubber support body comprises a first upper sealing layer steel plate 1-1, a first lower sealing layer steel plate 1-2 and a plurality of layers of first laminated rubbers 1-3 arranged between the first upper sealing layer steel plate 1-1 and the first lower sealing layer steel plate 1-2, wherein a first inner layer steel plate 1-4 is arranged between two adjacent layers of the first laminated rubbers 1-3.
In the embodiment, the first laminated rubber 1-3 of the first rubber support body can adopt a thick layer of rubber, the first shape coefficient of the first laminated rubber 1-3 can be significantly lower than 15, the second shape coefficient of the first laminated rubber can be significantly lower than 5, and the thickness of the rubber layer can reach more than 20mm according to the definition of the existing national standard GB20688, so that the vertical rigidity of the first laminated rubber 1-3 can be significantly lower than that of the traditional laminated rubber vibration isolation support.
Referring to fig. 1, the second rubber support body comprises a second upper sealing layer steel plate 2-1, a second lower sealing layer steel plate 2-2 and a plurality of second laminated rubbers 2-3 arranged between the second upper sealing layer steel plate 2-1 and the second lower sealing layer steel plate 2-2, wherein a second inner layer steel plate 2-4 is arranged between two adjacent second laminated rubbers 2-3; the limiting piece 3 is vertically embedded into the horizontal shock insulation assembly 2 and sequentially penetrates through a second upper seal layer steel plate 2-1, a second laminated rubber 2-3 and a second lower seal layer steel plate 2-2 of the horizontal shock insulation assembly 2 from top to bottom.
The second rubber support body in the embodiment can adopt thin laminated rubber, and the damping member embedded in the second rubber support body can be a lead core or other damping materials so as to provide the yield force and the damping force of the nested multifunctional shock-insulation rubber support for generating the integral horizontal shear deformation.
In addition, the first laminated rubber 1-3 and the second laminated rubber 2-3 in the embodiment can adopt high-damping rubber, so that the damping force of the nested multifunctional vibration-isolating rubber support can be provided during vertical vibration isolation and horizontal vibration isolation.
Referring to fig. 1, the fixed ends of the vertical vibration isolation assembly 1 and the horizontal vibration isolation assembly 2 share an upper connecting plate 4 or a lower connecting plate 5, and are connected with an upper structure through the upper connecting plate 4 or connected with a lower structure through the lower connecting plate 5; the vertical vibration isolation assembly 1 is characterized in that a first upper seal layer steel plate 1-1 and an upper connecting plate 4 and a first lower seal layer steel plate 1-2 and a lower connecting plate 5 are connected or welded through bolts; the second lower seal layer steel plate 2-2 of the horizontal shock isolation assembly 2 is connected with the lower connecting plate 5, the second upper seal layer steel plate 2-1 is a non-fixed end, and a vertical telescopic deformation gap 6 is reserved between the second upper seal layer steel plate 2-1 and the additional upper connecting plate 4.
In addition to the above embodiments, the vertical vibration isolation assembly 1 and the horizontal vibration isolation assembly 2 are directly connected to an upper structure and a lower structure, wherein a first upper seal layer steel plate 1-1 in the vertical vibration isolation assembly 1 is connected to the upper structure, and a first lower seal layer steel plate 1-2 is connected to the lower structure; and a second lower seal layer steel plate 2-2 in the horizontal shock isolation assembly 2 is connected with a lower structure, a second upper seal layer steel plate 2-1 is a free end, and a vertical telescopic deformation gap 6 is reserved between the second upper seal layer steel plate 2-1 and an upper structure.
In the two modes, when an earthquake occurs, the vertical vibration isolation assembly 1 and the horizontal vibration isolation assembly 2 can transmit horizontal force through the engagement between the first lower seal layer steel plate 1-2 and the second lower seal layer steel plate 2-2, so that the vertical vibration isolation assembly 1 and the horizontal vibration isolation assembly 2 cooperatively generate horizontal shearing deformation, and the support realizes the vibration isolation effect.
Referring to fig. 1, the first rubber mount body and the second rubber mount body are integrally formed by vulcanization at the same time, or are separately formed by vulcanization and post-assembly.
Besides the embodiment of the embodiment, other flexible materials can be used to replace the rubber materials in the first rubber support body and the second rubber support body, other rigid materials can be used to replace the steel materials in the nested multifunctional shock-insulation rubber support, and other fixing or bonding processes can be used to replace the vulcanization molding process.
Referring to fig. 1, the nested multifunctional shock-insulation rubber support has the working principle that:
when the multifunctional vibration isolation rubber support is in operation, the upper end of the vertical vibration isolation component 1 in the multifunctional vibration isolation rubber support is connected with an upper structure (such as an upper structure of a building), the lower end of the vertical vibration isolation component 1 is connected with a lower structure (such as a foundation of the building), the vertical vibration isolation component 1 is compressed and deformed under the vertical load action of the upper structure, because the height of the horizontal vibration isolation component 2 is smaller than that of the vertical vibration isolation component 1, a gap exists between the horizontal vibration isolation component 2 and the vertical vibration isolation component 1 and is not in direct contact with the upper structure, the vertical rigidity of the support is not increased by the high-rigidity thin laminated rubber (namely, the second laminated rubber 2-3 of the second rubber support body), and because the horizontal vibration isolation component 2 is embedded in the vertical vibration isolation component 1, under the lateral buckling prevention constraint of the horizontal vibration isolation component 2, the vertical vibration isolation component 1 deforms uniformly under, the multifunctional shock insulation rubber support disclosed by the invention has higher bearing capacity and stability because buckling is not generated. Because according to reasonable calculation design, the vertical compression deformation of the vertical vibration isolation assembly 1 can be smaller than the clearance between the free end of the horizontal vibration isolation assembly 2 and the upper connecting plate, so that the environmental vibration is prevented from being transmitted to the upper structure through the horizontal vibration isolation assembly 2 with high vertical rigidity, and the vibration isolation effect of the environmental vibration is ensured.
When an earthquake occurs, the horizontal shock insulation component 2 in the vertical shock insulation component 1 adopts thin laminated rubber to form a lateral buckling prevention effect on the vertical shock insulation component 1, so that the vertical shock insulation component has higher stability under the vertical load effect and the horizontal shearing deformation, and the lead core 3 can be embedded in the second rubber support body in the horizontal shock insulation component 2, so that the yield force and the damping of the whole horizontal shearing deformation of the support can be provided, the multifunctional shock insulation rubber support has higher stability in service and in the coming of the earthquake, can be used as a reliable shock insulation support to provide the shock insulation effect and the damping effect, and realizes the maintenance-free function of the support after the earthquake. And because thick laminated rubber is adopted in the vertical vibration isolation component 1, the vertical rigidity is low, and therefore the vertical vibration isolation component has a certain vertical vibration isolation effect, and the whole support has a three-dimensional vibration isolation function.
In addition, because horizontal shock insulation subassembly 2 imbeds in vertical shock insulation subassembly 1, compact structure not only can reduce the whole volume of support, but also can reduce the height of support, improves the overall stability of support, rationally uses the allowable face pressure of stromatolite rubber, practices thrift support materials, reduces shock insulation layer overall height and cost.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that a plurality of horizontal seismic isolation assemblies 2 are provided, the embedded positions of the plurality of horizontal seismic isolation assemblies 2 may be located at any position in the vertical seismic isolation assembly 1 according to design requirements, different horizontal seismic isolation assemblies 2 may be provided in different or same sizes and damping materials, and in the present embodiment, the plurality of horizontal seismic isolation assemblies 2 are uniformly distributed along the circumferential direction of the vertical seismic isolation assembly 1.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. A nested multifunctional shock insulation rubber support is characterized by comprising a vertical shock insulation assembly and a plurality of horizontal shock insulation assemblies embedded into the vertical shock insulation assembly, wherein the upper end of the vertical shock insulation assembly is connected with an upper structure, and the lower end of the vertical shock insulation assembly is connected with a lower structure; one end of the horizontal shock insulation assembly is a fixed end, the fixed end is connected with the upper structure or the lower structure, and the other end of the horizontal shock insulation assembly is a free end; the vertical vibration isolation assembly is provided with a middle hole matched with the horizontal vibration isolation assembly at the position embedded into the horizontal vibration isolation assembly; wherein the vertical vibration isolation assembly comprises a first rubber mount body; the horizontal shock insulation assembly comprises a second rubber support body and a damping member vertically embedded in the second rubber support body, wherein the thickness of laminated rubber in the first rubber support body is larger than that of laminated rubber in the second rubber support body.
2. The nested multifunctional vibration-isolating rubber support according to claim 1, wherein the first rubber support body comprises a first upper sealing steel plate, a first lower sealing steel plate and a plurality of first laminated rubbers arranged between the first upper sealing steel plate and the first lower sealing steel plate, wherein a first inner steel plate is arranged between two adjacent first laminated rubbers.
3. The nested multifunctional vibration-isolating rubber support according to claim 1, wherein the second rubber support body comprises a second upper sealing steel plate, a second lower sealing steel plate and a plurality of second laminated rubbers arranged between the second upper sealing steel plate and the second lower sealing steel plate, wherein a second inner steel plate is arranged between two adjacent second laminated rubbers; the damping member is vertically embedded into the horizontal shock insulation assembly and sequentially penetrates through a second upper seal steel plate, a second laminated rubber and a second lower seal steel plate of the horizontal shock insulation assembly from top to bottom.
4. The nested multifunctional vibration-isolating rubber bearing according to claim 3, wherein the material of the damping member is lead.
5. The nested multifunctional seismic isolation rubber mount according to any one of claims 1 to 4, wherein the first laminated rubber and the second laminated rubber are made of natural rubber or high damping rubber.
6. The nested multifunctional vibration-isolating rubber support according to claim 2, wherein the fixed ends of the vertical vibration-isolating assembly and the horizontal vibration-isolating assembly share an upper connecting plate or a lower connecting plate and are connected with an upper structure through the upper connecting plate or connected with a lower structure through the lower connecting plate; the first upper seal steel plate and the upper connecting plate and the first lower seal steel plate and the lower connecting plate of the vertical vibration isolation assembly are connected or welded through bolts; the fixed end of the horizontal shock insulation assembly is connected with the connecting plate through a bolt or welded, and a vertical telescopic deformation gap is reserved between the free end and the corresponding connecting plate.
7. The nested multifunctional vibration isolation rubber support according to claim 2, wherein fixed ends of the vertical vibration isolation assembly and the horizontal vibration isolation assembly are directly connected with a connecting structure, wherein a first upper sealing steel plate in the vertical vibration isolation assembly is connected with an upper structure, and a first lower sealing steel plate in the vertical vibration isolation assembly is connected with a lower structure; a fixed end in the horizontal shock insulation assembly is connected with the connecting structure, and a vertical telescopic deformation gap is reserved between the free end and the connecting structure.
8. The nested multifunctional vibration-isolating rubber support according to claim 1, wherein the first rubber support body and the second rubber support body are integrally formed by vulcanization at the same time or are formed after vulcanization and molding separately.
9. The nested multifunctional seismic isolation rubber mount according to claim 2 or 3, wherein the cross section of the first rubber mount body and the cross section of the second rubber mount body are circular or rectangular.
10. The nested multifunctional vibration isolation rubber support according to claim 1, wherein the horizontal vibration isolation assembly is single, and the single horizontal vibration isolation assembly is arranged at the axial center of the vertical vibration isolation assembly; or the horizontal shock insulation assemblies are distributed at a plurality of positions of the vertical shock insulation assembly.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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