CN112411762B - Rubber shock absorption and isolation system for high-rise building - Google Patents
Rubber shock absorption and isolation system for high-rise building Download PDFInfo
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- CN112411762B CN112411762B CN202011233985.4A CN202011233985A CN112411762B CN 112411762 B CN112411762 B CN 112411762B CN 202011233985 A CN202011233985 A CN 202011233985A CN 112411762 B CN112411762 B CN 112411762B
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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
Abstract
The invention discloses a rubber shock absorption and isolation system for high-rise buildings; comprises a main damping body, an upper connecting plate and a lower connecting plate; a rubber layer and a steel plate layer are arranged inside the main damping body and are sequentially overlapped with each other; a lead core penetrates through the middle position between the rubber layer and the steel plate layer; the top and the bottom of the main shock absorber are both connected with sealing plates, and the top and the bottom of the lead core are both connected with the sealing plates; a plurality of auxiliary shock absorbers are uniformly arranged on the outer peripheral side of the shock absorption main body; by arranging the main damping body and the rubber layer and the steel plate layer which are bent and overlapped, when the rubber sheet is deformed transversely or longitudinally, the rubber sheet is deformed and sheared, and certain damping and rigidity are provided; by arranging the auxiliary shock insulation body, the pressure sensor receives a pressure signal and transmits the signal to the control unit to change the strength of the magnetic field, so that the damping of the electromagnetic liquid is changed along with the strength change of the magnetic field; better play the shock attenuation effect.
Description
Technical Field
The invention belongs to the technical field of building shock insulation, and particularly relates to a rubber shock absorption and isolation system for a high-rise building.
Background
The seismic isolation technology is newly developed in recent years, and the core device of the seismic isolation technology is a building seismic isolation rubber support, and the purpose is to prolong the service cycle of a building structure. When an earthquake occurs, the shock-insulation rubber support bears the deformation of the main structure of the building, the upward energy transfer rate is reduced, the earthquake acceleration response of the upper structure is reduced to 1/4-1/8 when the earthquake is not isolated, the building structure is close to the whole horizontal movement, and the effect of isolating the earthquake is achieved; according to the basic structure of the building shock insulation rubber support, aiming at the current development situation of the current building shock insulation technology in China, the law and regulation and the technical standard issued and implemented by the country are combined, and the building shock insulation operation mode is standardized, so that the optimization and the industrial upgrading of the building shock insulation structure are facilitated, the development space of the building shock insulation market is further widened, and more sustainable development opportunities are won for building shock insulation.
The ordinary shock insulation rubber support that adopts at present can only separate horizontal amplitude effect, and the shock insulation to vertical amplitude effect is very little, and its corresponding excellent cycle is also different in different earthquake wave and place, consequently, shock insulation structure must be according to earthquake wave and the reasonable design rigidity of topography of difference and structure, makes the vertical natural vibration cycle of shock insulation back construction avoid the excellent cycle of earthquake wave and topography, improves the shock insulation effect.
Chinese patent application No. 201620351265.0 discloses a modularized buried piezoelectric power generation device, which comprises a box body, a transmission device and an equal stress piezoelectric power generation module, wherein the box body consists of a base body, a box body upper cover plate, a supporting limit strip, a transmission rod supporting seat, a spring and a connecting piece, wherein the box body upper cover plate, the supporting limit strip, the transmission rod supporting seat, the spring and the connecting piece are arranged on the base body; the transmission device consists of a pedal and a transmission rod connected to the pedal; the equal stress piezoelectric power generation module is composed of a substrate, an upper pressing plate, a limiting connecting piece and a piezoelectric power generation unit, wherein the upper pressing plate, the limiting connecting piece and the piezoelectric power generation unit are installed on the substrate.
Chinese patent application No. 201720899236.2 has opened a connecting device of wedge device and isolation bearing, including wedge device and isolation bearing, the wedge device rigid coupling is in isolation bearing's top, the wedge device is by one end to the gradually increasing slide wedge device of other one end, contained angle between wedge device's upper surface and the lower surface of wedge device is an, 0 < a < 30 degrees, wedge device's upper surface still is equipped with the last connecting bolt who is used for being connected with upper portion building, the isolation bearing includes a plurality of intermediate layer rubber and the intermediate layer steel sheet that the interval set up, the top of isolation bearing is equipped with the support upper junction plate, be used for being connected with the wedge device, the bottom of isolation bearing still is equipped with the basic connecting plate that is used for with basic connection, the basic connecting plate is equipped with the basic bolt that is used for being connected with lower part building.
The shock insulation device of above-mentioned technical scheme design through the wedge design, can offset vibration in-process part turning force, but to the effort of vertical amplitude, play the effect of shock insulation not, because wedge-shaped setting, still can aggravate the amount problem of landing at the in-process of vibrations.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a rubber shock absorption and isolation system for a high-rise building, wherein a main shock absorption body is arranged, and a rubber layer and a steel plate layer which are bent and overlapped are arranged, so that when the rubber sheet is deformed and sheared transversely or longitudinally, certain damping and rigidity are provided; the longitudinal shock insulation effect is increased; by arranging the auxiliary shock insulation body, the pressure sensor receives a pressure signal and transmits the signal to the control unit to change the strength of the magnetic field, so that the damping of the electromagnetic liquid is changed along with the strength change of the magnetic field; better play the shock attenuation effect.
The invention provides the following technical scheme:
a rubber shock absorption and isolation system for high-rise buildings; comprises a main damping body, an upper connecting plate and a lower connecting plate; a rubber layer and a steel plate layer are arranged inside the main damping body and are sequentially overlapped with each other; a lead core penetrates through the middle position between the rubber layer and the steel plate layer; the top and the bottom of the main shock absorber are both connected with sealing plates, and the top and the bottom of the lead core are both connected with the sealing plates; the periphery of the main shock absorber is wrapped with a protective layer which is made of rubber; a plurality of reinforcing ribs are arranged in the damping main body and penetrate through the rubber layer and the steel plate layer; the top of the main damping body is connected with an upper connecting plate, and the bottom of the main damping body is connected with a lower connecting plate; a plurality of auxiliary shock absorbers are uniformly arranged on the outer peripheral side of the shock absorption main body; the auxiliary damping body comprises a sleeve body, a supporting column is arranged in the cylinder body, the supporting column is connected with a telescopic cylinder, and the supporting column is connected with the cylinder body in a sliding mode through the telescopic cylinder.
Preferably, an upper embedded plate is connected above the upper connecting plate, and a plurality of embedded ribs are arranged above the upper embedded plate; the lower part of the lower connecting plate is connected with a lower embedded plate, and the bottom of the lower embedded plate is provided with a plurality of embedded ribs.
Preferably, the periphery of the main damping body is at least provided with four auxiliary damping bodies, and the four auxiliary damping bodies are uniformly distributed on the periphery of the main damping body; the bottom of the cylinder body of the auxiliary damping body is connected with the lower connecting plate, the other end of the cylinder body is provided with a support column, and the support column is connected with the cylinder body in a sliding manner; the cylinder body is of a sealing structure; one end of the support column in the cylinder body is connected with a telescopic cylinder; electromagnetic liquid is arranged in the cylinder body; the telescopic cylinder and the inner wall of the cylinder body form sliding connection.
Preferably, two groups of electromagnetic coils are symmetrically arranged inside the telescopic cylinder, and the electromagnetic coils are connected with a conducting wire for electrifying; magnetic field lines are formed around the electromagnetic coil after the current is applied.
Preferably, the electromagnetic coil is connected with a controller, the controller is connected with a pressure sensor, and the pressure sensor is arranged at the top of the strut.
Preferably, the main shock absorber is in a columnar or rectangular structure; the rubber layer and the steel plate layer are arranged in a wave-shaped structure in an overlapped mode.
Preferably, the outer side of the main damping body is provided with a plurality of groups of ropes, and the ropes are arranged between the upper connecting plate and the lower connecting plate.
Preferably, the rope is a shape memory alloy rope; the U-shaped hoops are correspondingly arranged at four corners of the upper connecting plate and the lower connecting plate, the shape memory alloy cable forms an annular structure at the periphery of the main shock absorber through the U-shaped hoops, and the upper connecting plate and the lower connecting plate are connected in a reinforcing mode through the shape memory alloy cable.
Preferably, a plurality of spherical hinges are arranged on the peripheral sides of the upper connecting plate and the lower connecting plate, the shape memory alloy cables form an X-shaped structure through the spherical hinges, and the upper connecting plate and the lower connecting plate are reinforced through the shape memory alloy cables of the X-shaped structure; the shape memory alloy cable of the arc-shaped structure is arranged on the periphery of the main shock absorber and is connected with the upper connecting plate and the lower connecting plate through the spherical hinge.
Preferably, the spherical hinge comprises an upper top plate and a lower fixed plate, the upper top plate and the lower fixed plate are movably connected, cavities are formed in the upper top plate and the lower fixed plate, and ball heads are arranged in the cavities and form rotary connection in the cavities; a ball rod is connected above the ball head and is connected with a shape memory alloy cable.
Preferably, the U-shaped hoop comprises a U-shaped buckle, the U-shaped buckle is provided with a base plate in a matching mode, and the U-shaped buckle is inserted into the base plate and connected through a screw cap.
Preferably, when the shape memory alloy cable with the annular structure is connected, the U-shaped hoop penetrates through the U-shaped base plate, then penetrates through the upper connecting plate and the lower connecting plate, and is fixedly connected through the screw cap; after the shape memory alloy cable with the annular structure passes through the U-shaped hoop, the end head of the shape memory alloy cable is fixed behind the inner sleeve of the shape memory alloy cable and is annularly connected with the outer sleeve of the shape memory alloy cable; the X-shaped structure and the arc-shaped structure penetrate through the upper top plates of the two spherical hinges through the shape memory alloy cables, and the upper top plates of the two spherical hinges are fixed with the lower seeking education plate through bolts respectively; other shape memory alloy cables are also arranged in sequence.
The shape memory alloy cable is composed of a plurality of strands of shape memory alloy wires with smaller diameters, and the alloy wires with larger diameters are high in manufacturing cost and difficult to synthesize; to increase the ultimate strain of the shape memory alloy wire, sufficient restoring force is provided at larger deformations; the number of strands of the shape memory alloy cable is n, the diameter of the alloy wire is d, the radius of the shape memory alloy cable is R, and the elastic force f of the shape memory alloy cable satisfies the relation. K (nR/d); k is the elastic coefficient, and the value range of n is 3-22; f unit N/m; r, d units cm; when n is greater than 22, the ultimate strain of the shape memory alloy wire is gradually reduced.
Preferably, the rubber layer is made of natural rubber and is vulcanized to form high-damping rubber; the Shore hardness Y of the high-damping rubber is 25-95, and the rebound rate eta is 15-75%; furthermore, eta between the Shore hardness Y and the resilience eta of the rubber layer is delta-Y2/3, wherein delta is a resilience coefficient and is in a value range of 0.06-0.24.
In the vibration process, the main damping body, the auxiliary damping body and the shape memory alloy cable jointly act to form a damping system, and the rigidity and the structure are reasonably designed according to seismic waves and different terrains through the mutual synergistic action of the main damping body, the auxiliary damping body and the shape memory alloy cable, so that the vertical natural vibration period of the structure after shock insulation avoids the excellent period of the seismic waves and the terrains; the shock-proof structure has good shock-proof effect, and can buffer the transverse and longitudinal vibration force and prevent the fracture caused by overlarge transverse or longitudinal received shearing force; the elasticity f of the shape memory alloy cable and the Shore hardness Y and the rebound rate eta of the rubber layer satisfy the following relations: f · Y ═ Φ (n + R)/d η; phi is a relation coefficient and the value range is 4.36-26.3.
When the pressure sensor in the auxiliary shock absorber senses different pressures and the electromagnetic coil is not electrified, the magnetic particles are not changed, and the main shock absorber mainly acts at the moment; when the pressure sensor is subjected to pressure, a pressure signal is transmitted to the controller, and after the controller controls the current to be switched on, the magnetic particles which are originally in a dispersion state are rearranged, so that the liquid form in the cylinder body is changed, and the damping in the cylinder body is changed; the damping of the shock absorber changes along with the strength of the magnetic field.
When the technical scheme is used, the prefabricated main damping body is connected with the embedded plate through the embedded ribs and is prefabricated in a concrete structure and fixed through the shape memory alloy cable, and when transverse or longitudinal tensile force occurs, the shape memory alloy cable deforms, so that the upper connecting plate and the lower connecting plate cannot be broken or separated, and can bear larger tensile force; under the condition of higher pressure, a compression-resistant system is formed by the main shock absorber and the auxiliary shock absorber, so that the bearing has higher vertical bearing capacity, and meanwhile, the shape memory alloy cable and the auxiliary shock absorber provide a rigid limit function of a horizontal position for the bearing to limit the toppling or collapsing of the bearing; when the shape memory alloy cable is within the limit strain value, the auxiliary shock absorber and the main shock absorber are arranged, and the lead core is used for rigidly constraining the support through a composite structure formed by the bent multi-layer rubber layer and the steel plate layer in the main shock absorber, so that the support only provides a tension and compression effect in the vertical direction; the support is flexibly constrained through the multi-structure arrangement of the shape memory alloy cable; the support is allowed to deform in a small amplitude when violent vibration is generated, so that the transverse or longitudinal shearing force can be effectively reduced, and the bearing capacity and the ultimate stress value of the support are greatly improved; the shock absorption effect is improved.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the rubber shock absorption and isolation system for the high-rise building, the main shock absorption body is arranged, the rubber layer and the steel plate layer which are bent and overlapped are arranged, and when the rubber sheet is subjected to transverse or longitudinal deformation, the rubber sheet is deformed and sheared, certain damping and rigidity are provided, and the longitudinal shock isolation effect is improved.
(2) The invention relates to a rubber shock absorption and isolation system for a high-rise building, which is characterized in that a secondary shock isolation body is arranged, a pressure sensor is used for receiving a pressure signal and transmitting the signal to a control unit to change the strength of a magnetic field, so that the damping of electromagnetic liquid is changed along with the strength change of the magnetic field; better play the shock attenuation effect.
(3) The rubber shock absorption and isolation system for the high-rise building is fixed through the shape memory alloy cable, and when a transverse or longitudinal tensile force occurs, the shape memory alloy cable deforms, so that the upper connecting plate and the lower connecting plate cannot be broken or separated, and can bear larger tensile force; under the condition of higher pressure, a compression-resistant system is formed by the main shock absorber and the auxiliary shock absorber, so that the bearing has higher vertical bearing capacity, and meanwhile, the shape memory alloy cable and the auxiliary shock absorber provide a rigid limit function of a horizontal position for the bearing to limit the toppling or collapsing of the bearing.
(4) The invention relates to a rubber shock absorption and isolation system for a high-rise building, which is characterized in that an auxiliary shock absorption body and a main shock absorption body are arranged, and a composite structure formed by bent multilayer rubber layers and steel plate layers is rigidly restrained on a support in the main shock absorption body through a lead core, so that the support only provides a tension and compression effect in the vertical direction; the support is flexibly constrained through the multi-structure arrangement of the shape memory alloy cable; the support is allowed to deform in a small amplitude when violent vibration is generated, so that the transverse or longitudinal shearing force can be effectively reduced, and the bearing capacity and the ultimate stress value of the support are greatly improved; the shock absorption effect is improved.
(5) According to the rubber shock absorption and isolation system for the high-rise building, the limit strain of the shape memory alloy cable is improved through the relation between the elastic forces of the shape memory alloy cable by limiting the number of strands of the shape memory alloy cable, the diameter of the alloy wire and the radius of the shape memory alloy cable, and sufficient restoring force is provided for large deformation.
(6) According to the rubber shock absorption and isolation system for the high-rise building, the relation between the Shore hardness and the rebound rate of the rubber layer is limited, so that the rubber layer can reach the optimal use condition, the shock absorption effect of the rubber layer is further improved, and the vertical bearing capacity of the support is increased.
(7) According to the rubber shock absorption and isolation system for the high-rise building, the relationship between the elasticity of the shape memory alloy cable and the Shore hardness and the rebound rate of the rubber layer is limited, so that the elasticity of the shape memory alloy cable and the Shore hardness and the rebound rate of the rubber layer are mutually promoted to have a synergistic effect, a good shock isolation effect is achieved together, transverse and longitudinal vibration forces are buffered, and fracture caused by overlarge transverse or longitudinal received shearing force is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the structure of a main shock absorber according to the present invention.
Fig. 2 is a schematic diagram of the overall structure of the implementation of the invention.
FIG. 3 is a schematic diagram of the rubber layer structure of the present invention.
Fig. 4 is a schematic structural view of the sub-damper of the present invention.
Fig. 5 is a schematic diagram of the current supply of the electromagnetic coil of the telescopic cylinder.
Fig. 6 is a schematic diagram of the electromagnetic coil of the telescopic cylinder without being electrified.
FIG. 7 is a schematic view of the shape memory alloy cord structure of the present invention.
Fig. 8 is a schematic view of the U-shaped hoop structure of the present invention.
Fig. 9 is a schematic view of the spherical hinge structure of the present invention.
In the figure: 1. a housing; 2. pressing a plate; 3. a fixed block; 4. a connecting rod; 5. a connecting member; 6. a rack; 7. a threaded rod; 8. a gear; 9. a moving block; 10. a bearing; 11. a support bar; 12. a flange; 13. connecting blocks; 14. a sleeve; 15. a telescopic rod; 16. a spring; 101. an electric energy collector; 102. a piezoelectric plate; 103. a base; 1031. a substrate; 1032. a piezoelectric crystal; 1033. a wire guide hole; 141. a rectifier; 142. an energy storage device; 143. a housing; 131. pressing a plate; 132. a fixed block; 133. a connecting rod; 134. a connecting member.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-3, a rubber shock absorption and isolation system for high-rise buildings; comprises a main damping body 1, an upper connecting plate 2 and a lower connecting plate 3; a rubber layer 15 and a steel plate layer 11 are arranged inside the main shock absorber 1, and the rubber layer 15 and the steel plate layer 11 are sequentially overlapped; the lead core 7 penetrates through the middle position between the rubber layer 15 and the steel plate layer 11; the top and the bottom of the main shock absorber 1 are both connected with a sealing plate 8, and the top and the bottom of the lead 7 are both connected with the sealing plate 8; the periphery of the main shock absorber 1 is wrapped with a protective layer 16, and the protective layer 16 is made of rubber; a plurality of reinforcing ribs 9 are arranged in the damping main body, and the plurality of reinforcing ribs 9 penetrate through the rubber layer 15 and the steel plate layer 11; the top of the main damping body 1 is connected with an upper connecting plate 2, and the bottom of the main damping body 1 is connected with a lower connecting plate 3; a plurality of auxiliary shock absorbers 10 are uniformly arranged on the outer peripheral side of the shock absorption main body; the auxiliary damper 10 includes a sleeve body, a support rod 102 inside the cylinder 101, a telescopic cylinder 103 connected to the support rod 102, and the support rod 102 slidably connected to the cylinder 101 through the telescopic cylinder 103.
An upper embedded plate 4 is connected above the upper connecting plate 2, and a plurality of embedded ribs 6 are arranged above the upper embedded plate 4; the lower part of the lower connecting plate 3 is connected with a lower embedded plate 5, and the bottom of the lower embedded plate 5 is provided with a plurality of embedded ribs 6.
Example two:
on the basis of the first embodiment, as shown in fig. 4 to 6, at least four auxiliary shock absorbers 10 are arranged on the periphery of the main shock absorber 1, and the four auxiliary shock absorbers 10 are uniformly distributed on the periphery of the main shock absorber 1; the bottom of a cylinder 101 of the auxiliary shock absorber 10 is connected with the lower connecting plate 3, a strut 102 is arranged at the other end of the cylinder 101, and the strut 102 is connected with the cylinder 101 in a sliding manner; the cylinder 101 is in a sealing structure; one end of the support column 102 in the cylinder 101 is connected with a telescopic cylinder 103; the electromagnetic liquid 1032 is arranged in the barrel body 101; the telescopic cylinder 103 and the inner wall of the cylinder body 101 form sliding connection.
Two groups of electromagnetic coils 1031 are symmetrically arranged in the telescopic cylinder 103, and the electromagnetic coils 1031 are connected with conducting wires for electrifying; magnetic field lines 1033 are formed around the electromagnetic coil 1031 after energization; the electromagnetic coil 1031 is connected with a controller, the controller is connected with a pressure sensor, and the pressure sensor is arranged at the top of the strut 102.
When the pressure sensor inside the sub-damper 10 senses different pressures and the electromagnetic coil 1031 is not energized, the magnetic particles are not changed, and the main function of the main damper 1 is achieved; when the pressure sensor is subjected to pressure, a pressure signal is transmitted to the controller, and after the controller controls the current to be switched on, the magnetic particles which are originally in a dispersed state are rearranged, so that the liquid form in the cylinder 101 is changed, and the damping in the cylinder 101 is changed; the damping of the shock absorber changes along with the strength of the magnetic field.
The rubber layer 15 is made of natural rubber and is vulcanized to form high-damping rubber; the Shore hardness Y of the high-damping rubber is 25-95, and the rebound rate eta is 15-75%; furthermore, η ═ δ · Y2/3 is satisfied between the shore hardness Y and the springback η of the rubber layer 15, where δ is a coefficient of springback, and ranges from 0.06 to 0.24.
In the vibration process, the main damping body 1, the auxiliary damping body 10 and the shape memory alloy cable jointly act to form a damping system, and the rigidity and the structure are reasonably designed according to earthquake waves and different terrains through the mutual synergistic action of the main damping body, the auxiliary damping body and the shape memory alloy cable, so that the vertical natural vibration period of the structure after shock insulation avoids the excellent period of the earthquake waves and the terrains; the shock-proof structure has good shock-proof effect, and can buffer the transverse and longitudinal vibration force and prevent the fracture caused by overlarge transverse or longitudinal received shearing force; the elasticity f of the shape memory alloy cable and the Shore hardness Y and the rebound rate eta of the rubber layer 15 satisfy the following relations: f · Y ═ Φ (n + R)/d η; phi is a relation coefficient and the value range is 4.36-26.3.
Example three:
as shown in fig. 7-9, on the basis of the first embodiment, the main damper 1 has a columnar or rectangular parallelepiped structure; the rubber layer 15 and the steel plate layer 11 are arranged in a wave-shaped structure in a mutual overlapping mode.
A plurality of groups of ropes 12 are arranged on the outer side of the main damping body 1, and the ropes 12 are arranged between the upper connecting plate 2 and the lower connecting plate 3; the rope 12 is a shape memory alloy rope; u-shaped hoops 14 are correspondingly arranged at four corners of the upper connecting plate 2 and the lower connecting plate 3, the shape memory alloy cable forms an annular structure at the periphery of the main shock absorber 1 through the U-shaped hoops 14, and the upper connecting plate 2 and the lower connecting plate 3 are connected in a reinforcing mode through the shape memory alloy cable.
A plurality of spherical hinges 13 are arranged on the peripheral sides of the upper connecting plate 2 and the lower connecting plate 3, the shape memory alloy cables form an X-shaped structure through the spherical hinges 13, and the upper connecting plate 2 and the lower connecting plate 3 are reinforced through the shape memory alloy cables of the X-shaped structure; the shape memory alloy cable forms an arc-shaped structure through a connecting spherical hinge 13, is arranged on the periphery of the main shock absorber 1 and is connected with the upper connecting plate 2 and the lower connecting plate 3 through the spherical hinge 13.
The spherical hinge 13 comprises an upper top plate 133 and a lower fixed plate 134, the upper top plate 133 is movably connected with the lower fixed plate 134, cavities are formed in the upper top plate 133 and the lower fixed plate 134, a ball head 132 is arranged in each cavity, and the ball heads 132 form rotating connection in the cavities; a ball rod 131 is connected above the ball head 132, and the ball rod 131 is connected with a shape memory alloy cable; the U-shaped hoop 14 comprises a U-shaped buckle 141, the U-shaped buckle 141 is provided with a backing plate 142 in a matching way, and the U-shaped buckle 141 is inserted into the backing plate 142 and connected through a screw cap 143.
When the shape memory alloy cable with the annular structure is connected, the U-shaped hoop 14 passes through the U-shaped backing plate 142, then passes through the upper connecting plate 2 and the lower connecting plate 3, and is fixedly connected through the nut 143; after the shape memory alloy cable with the annular structure passes through the U-shaped hoop 14, the end head of the shape memory alloy cable is fixed behind the inner sleeve of the shape memory alloy cable and is connected in an annular mode through the outer sleeve of the shape memory alloy cable; the X-shaped structure and the arc-shaped structure penetrate through the upper top plates 133 of the two spherical hinges 13 through the shape memory alloy cables, and the upper top plates 133 of the two spherical hinges 13 are fixed with the lower teaching bottom plate through bolts; other shape memory alloy cables are also arranged in sequence.
The shape memory alloy cable is composed of a plurality of strands of shape memory alloy wires with smaller diameters, and the alloy wires with larger diameters are high in manufacturing cost and difficult to synthesize; to increase the ultimate strain of the shape memory alloy wire, sufficient restoring force is provided at larger deformations; the number of strands of the shape memory alloy cable is n, the diameter of the alloy wire is d, the radius of the shape memory alloy cable is R, and the elastic force f of the shape memory alloy cable satisfies the relation. K (nR/d); k is the elastic coefficient, and the value range of n is 3-22; f unit N/m; r, d units cm; when n is greater than 22, the ultimate strain of the shape memory alloy wire is gradually reduced.
Example four
On the basis of the first embodiment, when the technical scheme is used, the prefabricated main damping body 1 is connected with the embedded plate through the embedded ribs 6 and is prefabricated in a concrete structure and fixed through the shape memory alloy cables, and when transverse or longitudinal tensile force occurs, the shape memory alloy cables deform, so that the upper connecting plate 2 and the lower connecting plate 3 cannot break or separate and can bear large tensile force; under the condition of higher pressure, a compression-resistant system is formed by the main shock absorber 1 and the auxiliary shock absorber 10, so that the bearing has higher vertical bearing capacity, and meanwhile, the shape memory alloy cable and the auxiliary shock absorber 10 provide a rigid horizontal position limiting function for the bearing to limit the toppling or collapsing of the bearing; when the shape memory alloy cable is within the limit strain value, the auxiliary shock absorber 10 and the main shock absorber 1 are arranged, and the lead core 7 is used for rigidly constraining the support through a composite structure formed by the bent multi-layer rubber layer 15 and the steel plate layer 11 in the main shock absorber 1, so that the support only provides a tension and compression effect in the vertical direction; the support is flexibly constrained through the multi-structure arrangement of the shape memory alloy cable; the support is allowed to deform in a small amplitude when violent vibration is generated, so that the transverse or longitudinal shearing force can be effectively reduced, and the bearing capacity and the ultimate stress value of the support are greatly improved; the shock absorption effect is improved.
The device obtained by the technical scheme is a rubber shock absorption and isolation system for high-rise buildings, and by arranging the main shock absorption body 1 and the bent and overlapped rubber layer 15 and the steel plate layer 11, when the rubber sheet is deformed transversely or longitudinally, the rubber sheet is deformed and sheared, certain damping and rigidity are provided, and the longitudinal shock isolation effect is improved; by arranging the auxiliary shock insulation body, a pressure sensor receives a pressure signal and transmits the signal to the control unit to change the strength of the magnetic field, so that the damping of the electromagnetic liquid 1032 is changed along with the strength change of the magnetic field; the shock absorption effect is better played; the shape memory alloy cable is used for fixing, and when a transverse or longitudinal pulling force occurs, the shape memory alloy cable deforms, so that the upper connecting plate 2 and the lower connecting plate 3 cannot be broken or separated, and can bear a large pulling force; under the condition of higher pressure, a compression-resistant system is formed by the main shock absorber 1 and the auxiliary shock absorber 10, so that the bearing has higher vertical bearing capacity, and meanwhile, the shape memory alloy cable and the auxiliary shock absorber 10 provide a rigid horizontal position limiting function for the bearing to limit the toppling or collapsing of the bearing; through the arrangement of the auxiliary shock absorber 10 and the main shock absorber 1, and the rigid constraint of a composite structure formed by the bent multilayer rubber layer 15 and the steel plate layer 11 in the main shock absorber 1 through the lead core 7, the support is only subjected to tension and compression action in the vertical direction; the support is flexibly constrained through the multi-structure arrangement of the shape memory alloy cable; the support is allowed to deform in a small amplitude when violent vibration is generated, so that the transverse or longitudinal shearing force can be effectively reduced, and the bearing capacity and the ultimate stress value of the support are greatly improved; the damping effect is improved; the limit strain of the shape memory alloy cable is improved through the relationship between the elastic force of the shape memory alloy cable and the large deformation of the shape memory alloy cable, wherein the number of strands of the shape memory alloy cable is limited, the diameter of the alloy wire is the same, and the radius of the shape memory alloy cable is the same; the relation between the Shore hardness and the rebound rate of the rubber layer 15 is limited, so that the optimal use condition is achieved, the damping effect of the rubber layer 15 is further improved, and the vertical bearing capacity of the support is increased; the elastic force of the shape memory alloy cable and the Shore hardness and the rebound rate of the rubber layer 15 are limited, so that the elastic force and the Shore hardness and the rebound rate of the rubber layer are mutually promoted to have a synergistic effect, a good shock insulation effect is achieved, transverse and longitudinal vibration forces are buffered, and fracture caused by overlarge transverse or longitudinal received shearing force is prevented.
Other technical solutions not described in detail in the present invention are prior art in the field, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A rubber shock absorption and isolation system for high-rise buildings; comprises a main damping body (1), an upper connecting plate (2) and a lower connecting plate (3); the damping device is characterized in that a rubber layer (15) and a steel plate layer (11) are arranged inside the main damping body (1), and the rubber layer (15) and the steel plate layer (11) are sequentially overlapped; a lead core (7) penetrates through the middle position between the rubber layer (15) and the steel plate layer (11); the top and the bottom of the main shock absorber (1) are both connected with a sealing plate (8), and the top and the bottom of the lead core (7) are both connected with the sealing plate (8); the periphery of the main shock absorber (1) is wrapped with a protective layer (16), and the protective layer (16) is made of rubber; a plurality of reinforcing ribs (9) are arranged in the damping main body, and the plurality of reinforcing ribs (9) penetrate through the rubber layer (15) and the steel plate layer (11); the top of the main shock absorber (1) is connected with an upper connecting plate (2), and the bottom of the main shock absorber (1) is connected with a lower connecting plate (3); a plurality of auxiliary shock absorbers (10) are uniformly arranged on the outer peripheral side of the shock absorption main body; the auxiliary shock absorption body (10) comprises a sleeve body, a support column (102) is arranged in the cylinder body (101), the support column (102) is connected with a telescopic cylinder (103), and the support column (102) is connected with the cylinder body (101) in a sliding mode through the telescopic cylinder (103);
the periphery of the main damping body (1) is at least provided with four auxiliary damping bodies (10), and the four auxiliary damping bodies (10) are uniformly distributed on the periphery of the main damping body (1); the bottom of a cylinder (101) of the auxiliary shock absorber (10) is connected with the lower connecting plate (3), a strut (102) is arranged at the other end of the cylinder (101), and the strut (102) is connected with the cylinder (101) in a sliding manner; the cylinder (101) is in a sealing structure; one end of the support column (102) in the cylinder body (101) is connected with a telescopic cylinder (103); the barrel (101) is internally provided with electromagnetic liquid (1032); the telescopic cylinder (103) is in sliding connection with the inner wall of the cylinder body (101); two groups of electromagnetic coils (1031) are symmetrically arranged in the telescopic cylinder (103), and the electromagnetic coils (1031) are connected with conducting wires for electrifying; forming magnetic field lines (1033) around the electromagnetic coil (1031) after energization; the rubber layer is made of natural rubber and is vulcanized to form high-damping rubber; the Shore hardness Y of the high-damping rubber is 25-95, and the rebound rate eta is 15-75%.
2. The rubber shock absorption and isolation system for the high-rise building according to claim 1, wherein an upper pre-embedded plate (4) is connected above the upper connecting plate (2), and a plurality of pre-embedded ribs (6) are arranged above the upper pre-embedded plate (4); the lower part of the lower connecting plate (3) is connected with a lower embedded plate (5), and the bottom of the lower embedded plate (5) is provided with a plurality of embedded ribs (6).
3. The rubber shock absorption system for high-rise buildings according to claim 1, wherein the electromagnetic coil (1031) is connected with a controller, and the controller is connected with a pressure sensor, and the pressure sensor is arranged on the top of the strut (102).
4. The rubber shock absorption and isolation system for the high-rise building according to claim 1, wherein the main shock absorption body (1) is in a columnar or rectangular structure; the rubber layer (15) and the steel plate layer (11) are arranged in a mutual overlapping mode in a wave-shaped structure.
5. The rubber shock absorption and isolation system for the high-rise building as claimed in claim 1, wherein a plurality of groups of locking ropes (12) are arranged on the outer side of the main shock absorption body (1), and the locking ropes (12) are arranged between the upper connecting plate (2) and the lower connecting plate (3).
6. The rubber shock absorption and isolation system for high-rise buildings according to claim 5, wherein the lock rope (12) is a shape memory alloy rope; u-shaped hoops (14) are correspondingly arranged at four corners of the upper connecting plate (2) and the lower connecting plate (3), the shape memory alloy cable forms an annular structure at the periphery of the main damping body (1) through the U-shaped hoops (14), and the upper connecting plate (2) and the lower connecting plate (3) are connected in a reinforcing mode through the shape memory alloy cable.
7. The rubber shock absorption and isolation system for the high-rise building is characterized in that a plurality of spherical hinges (13) are arranged on the peripheral sides of the upper connecting plate (2) and the lower connecting plate (3), the shape memory alloy cables form an X-shaped structure through the spherical hinges (13), and the upper connecting plate (2) and the lower connecting plate (3) are reinforced through the shape memory alloy cables of the X-shaped structure; the shape memory alloy cable forms an arc-shaped structure through a connecting spherical hinge (13), is arranged on the peripheral side of the main shock absorber (1), and is connected with the upper connecting plate (2) and the lower connecting plate (3) through the spherical hinge (13).
8. The rubber shock absorption and isolation system for the high-rise building according to claim 7, wherein the spherical hinge (13) comprises an upper top plate (133) and a lower fixed plate (134), the upper top plate (133) is movably connected with the lower fixed plate (134), cavities are formed in the upper top plate (133) and the lower fixed plate (134), a ball head (132) is arranged in each cavity, and the ball head (132) is rotatably connected in each cavity; a ball rod (131) is connected above the ball head (132), and the ball rod (131) is connected with the shape memory alloy cable.
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| CN113089388A (en) * | 2021-04-15 | 2021-07-09 | 周鑫 | Track fastening structure for subway vibration reduction |
| CN113216434A (en) * | 2021-04-27 | 2021-08-06 | 广州大学 | Decoupling type vibration control device |
| CN113502935B (en) * | 2021-08-18 | 2022-06-24 | 东晟兴诚集团有限公司 | Shock insulation rubber support and construction method thereof |
| CN115387488B (en) * | 2022-08-25 | 2023-06-23 | 福建工程学院 | Novel combined shock insulation and absorption structure of high-rise building and shock absorption method thereof |
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