CN211690796U - Plate type rubber self-adaptive decoupling three-dimensional isolation bearing - Google Patents
Plate type rubber self-adaptive decoupling three-dimensional isolation bearing Download PDFInfo
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- CN211690796U CN211690796U CN202020071174.8U CN202020071174U CN211690796U CN 211690796 U CN211690796 U CN 211690796U CN 202020071174 U CN202020071174 U CN 202020071174U CN 211690796 U CN211690796 U CN 211690796U
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Abstract
The utility model belongs to the technical field of seismic mitigation and isolation of engineering structures, in particular to a plate type rubber self-adaptive decoupling three-dimensional seismic isolation support which comprises a lower connecting plate horizontally arranged; the plate type rubber support is vertically arranged on the lower connecting plate; the viscous dampers are vertically arranged on the lower connecting plate; the middle lower seat plate is horizontally arranged above the lower connecting plate; and the horizontal shock insulation mechanism is fixed on the upper end surface of the middle lower seat plate. The utility model discloses in order to realize the motion decoupling zero. On the one hand, the vertical shock isolation system and the horizontal shock isolation system can work relatively independently, on the other hand, the support is enabled to be under the action of an earthquake, no relative vertical displacement exists between the vertical shock isolation mechanism and the horizontal shock isolation mechanism, and the overlarge swinging effect of the support is avoided.
Description
Technical Field
The utility model belongs to the technical field of the engineering structure subtracts the shock insulation, concretely relates to three-dimensional isolation bearing of board-like rubber self-adaptation decoupling zero formula.
Background
The basic seismic isolation technology is regarded as one of the most important technical advances in the field of seismic engineering in the 20 th century, and is widely applied worldwide. The basic principle of the seismic isolation technology is that a seismic isolation layer with low horizontal rigidity is obtained by arranging a seismic isolation support at the bottom of a building, and seismic acceleration response of an upper structure is reduced through a filtering effect. And the earthquake motion energy is absorbed and consumed by arranging an energy consumption device on the earthquake isolation layer. Modern seismic isolation technology has a history of nearly 60 years and belongs to passive vibration control technology.
However, the existing traditional building seismic isolation support has the following defects: one is the inability to isolate vertical seismic oscillations from horizontal micro-vibrations. A large number of earthquake damage observations and finite element analyses indicate that the vertical earthquake action can cause the structure vertical pressure-bearing member to be damaged under pressure. Along with the development of urban rail transit, the vertical component of environmental vibrations such as subway, especially micro-vibration can produce comparatively serious influence to people's comfort level of living. And secondly, the traditional shock insulation support has the contradiction of obtaining better shock insulation effect and controlling the ultimate displacement of a shock insulation layer in the horizontal direction. Generally speaking, a seismic isolation layer with smaller horizontal rigidity is arranged, and a better seismic isolation effect can be obtained. However, too small horizontal stiffness may cause too large displacement of the seismic isolation layer, and the safety of the structure under the action of large earthquake is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a three-dimensional isolation bearing of board-like rubber self-adaptation decoupling zero formula. The earthquake isolation structure can be used for buildings affected by environmental vibration, has the effect of isolating earthquake motion while isolating the environmental vibration, and can have good earthquake isolation effects on vertical earthquake, environmental micro-vibration, horizontal earthquake motion and the like.
The utility model provides a technical scheme as follows:
a three-dimensional isolation bearing of slab rubber self-adaptation decoupling type includes:
a lower connecting plate arranged horizontally;
the plate type rubber support is vertically arranged on the lower connecting plate, and the lower end face of the plate type rubber support is in press connection with the lower connecting plate;
the lower end of each viscous damper is fixed on the lower connecting plate, and each viscous damper is arranged around the plate type rubber support;
the middle lower seat plate is horizontally arranged above the lower connecting plate, is pressed on the upper end surface of the plate type rubber support and is fixedly connected with the upper end of each viscous damper;
and the horizontal shock insulation mechanism is fixed on the upper end surface of the middle lower seat plate.
In the technical scheme, the plate type rubber support is a bridge support product formed by inlaying, bonding and vulcanizing a plurality of layers of natural rubber and thin steel plates. This type of rubber mount has sufficient vertical stiffness to withstand vertical loads and can reliably transmit the pressure of the superstructure to the abutments; the elastic beam has good elasticity to adapt to the rotation of the beam end; there is a large shear deformation to meet the horizontal displacement of the superstructure.
Among the above-mentioned technical scheme, the viscous damper is vertical to be arranged, lower seat board and lower connecting plate in the connection, can dissipate vertical motion's energy to can play certain guide effect.
Among the above-mentioned technical scheme, viscous damper stop device can well resist the horizontal micro vibration of lower part support, prevents that the lower part support guide arm from not bearing the destruction that the horizontal force took place because of rigidity is too big.
The self-adaptive decoupling type three-dimensional isolation bearing provided by the technical scheme can realize motion decoupling. On the one hand, the vertical shock isolation system and the horizontal shock isolation system can work relatively independently, on the other hand, the support is enabled to be under the action of an earthquake, no relative vertical displacement exists between the vertical shock isolation mechanism and the horizontal shock isolation mechanism, and the overlarge swinging effect of the support is avoided.
Specifically, the method comprises the following steps:
the lower end face of the middle lower seat plate is provided with a first groove, and the upper part of the plate type rubber support extends into the first groove;
the lower end face of the middle lower seat plate is provided with a plurality of second grooves, and the upper part of each viscous damper extends into one corresponding second groove;
a third groove is formed in the upper end face of the lower connecting plate, and the lower portion of the plate type rubber support extends into the third groove;
the upper end face of the lower connecting plate is provided with a plurality of fourth grooves, and the lower portion of each viscous damper extends into one corresponding fourth groove.
Based on above-mentioned technical scheme, each part stretches into in the recess that corresponds, can play spacing effect.
Further:
the upper part of the plate type rubber support is embedded into the first groove;
the lower part of the plate type rubber support is embedded into the third groove;
the upper part of each viscous damper is embedded into the second groove;
a lower portion of each of the viscous dampers is fitted into the fourth groove.
Based on the technical scheme, the limiting and fixing of the end parts of the plate type rubber support and the viscous damper are realized, and unnecessary structural arrangement is reduced.
Specifically, horizontal shock isolation mechanism includes:
the middle and upper seat plates are horizontally fixed on the middle and lower seat plates;
the thick-meat rubber support is arranged on the middle upper seat plate and is in compression joint with the middle of the upper end face of the middle upper seat plate;
the energy dissipation plates are vertically fixed on the middle-upper seat plate and are arranged around the thick-meat rubber support;
and the upper connecting plate is arranged above the middle upper seat plate, the lower end face of the upper connecting plate is in press connection with the upper end face of the thick-meat rubber support, and the lower end face of the upper connecting plate is fixedly connected with the upper end face of each energy dissipation plate.
Based on the technical scheme, the upper connecting plate and the middle-upper seat plate are connected through the energy dissipation plate in a welding mode, the vertical displacement of the upper structure is locked, only horizontal displacement is generated, and the vertical movement and the horizontal movement of the support are decoupled. The aim of realizing motion decoupling is to enable the vertical shock isolation system and the horizontal shock isolation system to work relatively independently, and on the other hand, the support is enabled to have no relative vertical displacement between the upper connecting plate and the middle lower base plate under the action of an earthquake, so that the overlarge swinging action of the support is avoided.
The effect of isolating the transverse vibration of the thick-flesh rubber support is obvious. The lead core of the lead core laminated rubber causes pollution to the environment, and the later replacement process of the lead core is complicated and fussy. Therefore, the three-dimensional shock insulation support formed by combining the thick-flesh rubber support and the disc spring has a good effect of isolating three-dimensional shock.
Based on above-mentioned technical scheme, when the support was static and motion state, thick flesh rubber support and viscid attenuator carried superstructure jointly.
Furthermore, the thick-flesh rubber support comprises a rubber body and a plurality of steel plates which are horizontally arranged in the rubber body and are mutually spaced.
Specifically, the method comprises the following steps:
the upper end surface of the middle upper seat plate is provided with a fifth groove, and the lower part of the thick-meat rubber support extends into the fifth groove;
and a sixth groove is formed in the lower end face of the upper connecting plate, and the upper part of the thick-meat rubber support extends into the sixth groove.
Based on above-mentioned technical scheme, each part stretches into in the recess that corresponds, can play spacing effect.
Based on above-mentioned technical scheme, solved the not enough of traditional lead core rubber support through the energy dissipation board. The energy dissipation plate can effectively solve the difficult problems of lead pollution and lead corrosion difficult replacement.
Further:
the lower part of the thick-meat rubber support is embedded into the fifth groove;
the upper part of the thick-flesh rubber support is embedded into the sixth groove.
Based on the technical scheme, the end part of the thick-meat rubber support is limited and fixed, and unnecessary structural arrangement is reduced.
The utility model provides a three-dimensional isolation bearing of board-like rubber decoupling zero formula compares with traditional support, and the advantage is:
1) viscous dampers can dissipate seismic input energy.
2) The energy dissipation plate is used for replacing the lead core, so that the problem of pollution of the lead core to the environment in the later period can be effectively solved, and the lead core is difficult to replace when exceeding the service period during use.
The utility model provides a three-dimensional isolation bearing of decoupling zero formula compares with traditional building structure shock insulation measure, and the advantage is:
1) the utility model discloses vertical and level to, can keep apart three-dimensional ambient vibration more effectively.
2) The viscous dampers and energy dissipating plates may dissipate the vibration input energy.
Drawings
Fig. 1 is the utility model provides a three-dimensional isolation bearing's of board-like rubber self-adaptation decoupling type owner looks the structure sketch map.
In fig. 1, the structure represented by each reference numeral is listed as follows:
1. the energy dissipation device comprises an upper connecting plate, 2 an energy dissipation plate, 3 a thick-meat rubber support, 4 a middle and lower seat plate, 5 a viscous damper, 6 a lower connecting plate, 7 a plate type rubber support, 8 a middle and upper seat plate.
Detailed Description
The following description is made for the purpose of illustrating the principles and features of the present invention, and is not intended to limit the scope of the invention. The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
In one embodiment, as shown in fig. 1, the plate-type rubber adaptive decoupling three-dimensional seismic isolation bearing comprises: the lower connecting plate 6 that the level set up, vertical setting are at the plate rubber support 7 on connecting plate 6 down, and vertical setting is at a plurality of viscous dampers 5 on connecting plate 6 down, and the level sets up seat 4 down in 6 tops of connecting plate down to and fix the horizontal shock insulation mechanism on seat 4 up end down in. The lower end face of the plate type rubber support 7 is in press connection with the lower connecting plate 6. The lower end of each viscous damper 5 is fixed on the lower connecting plate 6, and each viscous damper 5 is arranged around the plate-type rubber support 7. The middle and lower seat plates 4 are pressed on the upper end surface of the plate type rubber support 7 and are fixedly connected with the upper ends of the viscous dampers 5.
In the technical scheme, the plate type rubber support is a bridge support product formed by inlaying, bonding and vulcanizing a plurality of layers of natural rubber and thin steel plates. This type of rubber mount has sufficient vertical stiffness to withstand vertical loads and can reliably transmit the pressure of the superstructure to the abutments; the elastic beam has good elasticity to adapt to the rotation of the beam end; large shear deformation to meet the horizontal displacement of the superstructure; the viscous damper is vertically arranged and connected with the middle lower seat plate and the lower connecting plate, can dissipate energy of vertical movement and can play a certain guiding role; the viscous damper limiting device can well resist the horizontal micro-vibration of the lower support, and prevent the lower support guide rod from being damaged due to the fact that the lower support guide rod cannot bear horizontal force due to too high rigidity. The self-adaptive decoupling three-dimensional isolation bearing based on the technical scheme can realize motion decoupling. On the one hand, the vertical shock isolation system and the horizontal shock isolation system can work relatively independently, on the other hand, the support is enabled to be under the action of an earthquake, no relative vertical displacement exists between the vertical shock isolation mechanism and the horizontal shock isolation mechanism, and the overlarge swinging effect of the support is avoided.
In one embodiment, the lower end surface of the middle lower seat plate 4 is provided with a groove, and the upper part of the plate type rubber support 7 is embedded into the groove. The lower end face of the middle lower seat plate 4 is provided with a plurality of grooves, and the upper part of each viscous damper 5 is embedded into a corresponding groove. The upper end face of the lower connecting plate 6 is provided with a groove, and the lower part of the plate type rubber support 7 is embedded into the groove. The upper end face of the lower connecting plate 6 is provided with a plurality of grooves, and the lower part of each viscous damper 5 is embedded into a corresponding groove. Based on the technical scheme, the limiting and fixing effects on the plate type rubber support and the end part of the viscous damper are achieved, and unnecessary structural arrangement is reduced.
In one implementation, a horizontal seismic isolation mechanism includes: an upper middle seat plate 8 horizontally fixed on the lower middle seat plate 4; the energy dissipation device comprises a thick-meat rubber support 3 arranged on an upper middle seat plate 8, a plurality of energy dissipation plates 2 vertically fixed on the upper middle seat plate 8, and an upper connecting plate 1 arranged above the upper middle seat plate 8. The thick rubber support 3 is pressed in the middle of the upper end surface of the middle upper seat plate 8. Each energy dissipation plate 2 is arranged around the thick-flesh rubber support 3. The lower end surface of the upper connecting plate 1 is in pressure joint with the upper end surface of the thick meat rubber support 3, and the lower end surface of the upper connecting plate 1 is fixedly connected with the upper end surface of each energy dissipation plate 2. Based on the technical scheme, the upper connecting plate and the middle-upper seat plate are connected through the energy dissipation plate in a welding mode, the vertical displacement of the upper structure is locked, only horizontal displacement is generated, and the vertical movement and the horizontal movement of the support are decoupled. The aim of realizing motion decoupling is to enable the vertical shock isolation system and the horizontal shock isolation system to work relatively independently, and on the other hand, the support is enabled to have no relative vertical displacement between the upper connecting plate and the middle lower base plate under the action of an earthquake, so that the overlarge swinging action of the support is avoided. The effect of isolating the transverse vibration of the thick-flesh rubber support is obvious. The lead core of the lead core laminated rubber causes pollution to the environment, and the later replacement process of the lead core is complicated and fussy. Therefore, the three-dimensional shock insulation support formed by combining the thick-flesh rubber support and the disc spring has a good effect of isolating three-dimensional shock. When the support is in a static state and a moving state, the thick-flesh rubber support and the viscous damper jointly bear the upper structure. The thick-flesh rubber support comprises a rubber body and a plurality of steel plates which are horizontally arranged in the rubber body and are mutually spaced. The defects of the traditional lead core rubber support are overcome through the energy dissipation plate. The energy dissipation plate can effectively solve the difficult problems of lead pollution and lead corrosion difficult replacement.
In one embodiment, the upper end surface of the upper middle seat plate 8 is provided with a groove into which the lower portion of the heavy rubber mount 3 is inserted. The lower end face of the upper connecting plate 1 is provided with a groove, and the upper part of the thick meat rubber support 3 is embedded into the groove. Based on the technical scheme, the end part of the thick-meat rubber support is limited and fixed, and unnecessary structural arrangement is reduced.
Based on the utility model provides a three-dimensional isolation bearing of slab rubber self-adaptation decoupling zero formula, the support is when static and motion state, and thick flesh rubber support bears the structure on support upper portion with the viscidity attenuator jointly. When an earthquake occurs, the upper connecting plate and the middle upper base plate are connected through the energy dissipation plate in a welding mode, the vertical displacement of the upper structure is locked, only horizontal displacement is generated, the vertical movement and the horizontal movement of the support are decoupled, and therefore the overlarge swinging effect of the support is avoided.
Generally, the utility model provides a three-dimensional isolation bearing of board-like rubber self-adaptation decoupling zero formula can realize the motion decoupling zero. On the one hand, the vertical shock isolation system and the horizontal shock isolation system can work relatively independently, on the other hand, the support is enabled to be under the action of an earthquake, no relative vertical displacement exists between the vertical shock isolation mechanism and the horizontal shock isolation mechanism, and the overlarge swinging effect of the support is avoided. Particularly, the upper connecting plate and the middle-upper base plate are connected through the energy dissipation plate in a welding mode, the vertical displacement of the upper structure is locked, only horizontal displacement is generated, and the vertical movement and the horizontal movement of the support are decoupled. The aim of realizing motion decoupling is to enable the vertical shock isolation system and the horizontal shock isolation system to work relatively independently, and on the other hand, the support is enabled to have no relative vertical displacement between the upper connecting plate and the middle lower base plate under the action of an earthquake, so that the overlarge swinging action of the support is avoided.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a three-dimensional isolation bearing of board-like rubber self-adaptation decoupling zero formula which characterized in that includes:
a lower connecting plate (6) arranged horizontally;
the plate type rubber support (7) is vertically arranged on the lower connecting plate (6), and the lower end face of the plate type rubber support (7) is in press connection with the lower connecting plate (6);
the lower end of each viscous damper (5) is fixed on the lower connecting plate (6), and each viscous damper (5) surrounds the plate-type rubber support (7);
the middle lower seat plate (4) is horizontally arranged above the lower connecting plate (6), and the middle lower seat plate (4) is pressed on the upper end surface of the plate-type rubber support (7) and is fixedly connected with the upper end of each viscous damper (5);
and a horizontal shock insulation mechanism fixed on the upper end surface of the middle lower seat plate (4).
2. The plate-type rubber self-adaptive decoupling three-dimensional seismic isolation bearing according to claim 1, characterized in that:
the lower end face of the middle lower seat plate (4) is provided with a first groove, and the upper part of the plate type rubber support (7) extends into the first groove;
the lower end face of the middle lower seat plate (4) is provided with a plurality of second grooves, and the upper part of each viscous damper (5) extends into one corresponding second groove;
a third groove is formed in the upper end face of the lower connecting plate (6), and the lower portion of the plate type rubber support (7) extends into the third groove;
the upper end face of the lower connecting plate (6) is provided with a plurality of fourth grooves, and the lower part of each viscous damper (5) extends into one corresponding fourth groove.
3. The plate-type rubber self-adaptive decoupling three-dimensional seismic isolation bearing according to claim 2, characterized in that:
the upper part of the plate type rubber support (7) is embedded into the first groove;
the lower part of the plate type rubber support (7) is embedded into the third groove;
the upper part of each viscous damper (5) is embedded into the second groove;
the lower part of each viscous damper (5) is embedded into the fourth groove.
4. The plate-type rubber self-adaptive decoupling three-dimensional seismic isolation bearing according to any one of claims 1 to 3, wherein the horizontal seismic isolation mechanism comprises:
the middle and upper seat plate (8) is horizontally fixed on the middle and lower seat plate (4);
the thick-meat rubber support (3) is arranged on the middle upper seat plate (8), and the thick-meat rubber support (3) is pressed in the middle of the upper end face of the middle upper seat plate (8);
the energy dissipation plates (2) are vertically fixed on the middle upper seat plate (8), and each energy dissipation plate (2) surrounds the thick-flesh rubber support (3);
and the upper connecting plate (1) is arranged above the middle upper seat plate (8), the lower end face of the upper connecting plate (1) is in press connection with the upper end face of the thick-meat rubber support (3), and the lower end face of the upper connecting plate (1) is fixedly connected with the upper end face of each energy dissipation plate (2).
5. The plate-type rubber self-adaptive decoupling three-dimensional seismic isolation bearing according to claim 4, characterized in that:
a fifth groove is formed in the upper end face of the middle upper seat plate (8), and the lower portion of the thick-meat rubber support (3) extends into the fifth groove;
the lower end face of the upper connecting plate (1) is provided with a sixth groove, and the upper portion of the thick meat rubber support (3) extends into the sixth groove.
6. The plate-type rubber self-adaptive decoupling three-dimensional seismic isolation bearing according to claim 5, characterized in that:
the lower part of the thick-meat rubber support (3) is embedded into the fifth groove;
the upper part of the thick-meat rubber support (3) is embedded into the sixth groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020071174.8U CN211690796U (en) | 2020-01-14 | 2020-01-14 | Plate type rubber self-adaptive decoupling three-dimensional isolation bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020071174.8U CN211690796U (en) | 2020-01-14 | 2020-01-14 | Plate type rubber self-adaptive decoupling three-dimensional isolation bearing |
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| CN211690796U true CN211690796U (en) | 2020-10-16 |
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| CN202020071174.8U Active CN211690796U (en) | 2020-01-14 | 2020-01-14 | Plate type rubber self-adaptive decoupling three-dimensional isolation bearing |
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