CN212001610U - Three-dimensional shock insulation support of area friction pendulum-type - Google Patents
Three-dimensional shock insulation support of area friction pendulum-type Download PDFInfo
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- CN212001610U CN212001610U CN202020070802.0U CN202020070802U CN212001610U CN 212001610 U CN212001610 U CN 212001610U CN 202020070802 U CN202020070802 U CN 202020070802U CN 212001610 U CN212001610 U CN 212001610U
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Abstract
The utility model belongs to building antidetonation, shock attenuation field, concretely relates to three-dimensional isolation bearing of area friction pendulum-type. This take three-dimensional isolation bearing of friction pendulum formula includes: the device comprises a vertical shock insulation mechanism and a friction pendulum support mechanism fixed on the vertical shock insulation mechanism. According to the friction pendulum type three-dimensional shock insulation support with the technical scheme, the vertical shock insulation mechanism can perform vertical shock absorption, and the friction pendulum support mechanism can isolate vertical seismic oscillation, so that the multi-stage horizontal shock insulation capacity can be improved, and vertical seismic oscillation can be isolated.
Description
Technical Field
The utility model belongs to building antidetonation, shock attenuation field, concretely relates to three-dimensional isolation bearing of area friction pendulum-type.
Background
China is a multi-earthquake country, and when an earthquake occurs, a shock insulation support is needed to protect buildings, cultural relics and the like. The shock insulation support is the most widely used shock insulation technology at present, and divides a building into an upper structure and a lower structure, and the upper structure and the lower structure are respectively connected with the shock insulation support to form a shock insulation layer so as to prevent the earthquake capability from directly acting on the upper structure of the building to damage the service performance of the building. The existing seismic isolation bearing with mature technology comprises a natural rubber bearing, a lead rubber bearing and a high-damping rubber bearing, wherein the lead rubber bearing is commonly used, but the influence of a lead material on soil and a foundation structure is unknown, and other novel environment-friendly materials are required to replace the lead material. Although modern seismic isolation technology has a history of nearly 60 years, most of domestic and foreign research results show that the seismic isolation elements commonly used at present can only isolate horizontal earthquakes and have no isolation effect on vertical earthquakes.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a three-dimensional isolation bearing of area friction pendulum-type. The utility model provides a three-dimensional isolation bearing of area friction pendulum-type can have good shock insulation effect to vertical earthquake and horizontal earthquake etc.. The multi-stage horizontal shock insulation capability can be improved, vertical seismic motion can be isolated, and the multi-stage horizontal shock insulation support is improved compared with a traditional shock insulation support.
The utility model provides a technical scheme as follows:
a three-dimensional isolation bearing of area friction pendulum-type includes:
a vertical shock isolation mechanism;
and the friction pendulum support mechanism is fixed on the vertical shock insulation mechanism.
According to the friction pendulum type three-dimensional shock insulation support with the technical scheme, the vertical shock insulation mechanism can perform vertical shock absorption, and the friction pendulum support mechanism can isolate vertical seismic oscillation, so that the multi-stage horizontal shock insulation capacity can be improved, and vertical seismic oscillation can be isolated.
Specifically, the friction pendulum support mechanism includes:
the top of the lower concave plate is provided with a downward concave surface which is concave downwards, and a friction layer is arranged on the surface of the lower concave surface;
the upper concave plate is arranged above the lower concave plate, an upper concave surface which is concave upwards is arranged at the bottom of the upper concave plate, and a friction layer is arranged on the surface of the upper concave surface;
the crimping is in go up the concave surface with the clutch blocks between the concave surface down, the clutch blocks be provided with go up concave surface complex epirelief, and be provided with concave surface complex convexity down, go up the convex surface with the convex surface all is provided with friction disc, one down the friction lining crimping one correspond the friction disc.
Based on the technical scheme, when the lower friction pendulum support is used as a shock isolation device in an earthquake, the shock isolation device has a good shock isolation effect, and simultaneously has certain functions of self-resetting, energy consumption, torsion resistance and the like. Through swing, the self-vibration period of the structure is prolonged, the damping ratio is increased, the shock insulation function is realized, and a part of horizontal earthquake action energy is consumed.
Specifically, vertical shock isolation mechanism includes:
the lower connecting plate is horizontally arranged below the lower concave plate;
the lower end face of the spring damping structure is in press connection with the lower connecting plate;
the lower end surface of the lower concave plate is fixedly connected with the upper end surface of the pressure plate;
and the vertical setting is in viscous damper or guide arm in the spring shock-absorbing structure, the lower extreme fixed connection of viscous damper link the board down, the upper end of viscous damper runs through the middle part space and the fixed connection of clamp plate concave plate down, perhaps, the lower extreme fixed connection of guide arm link the board down, the upper end orientation of guide arm the middle part space setting of clamp plate.
Specifically, the spring damping structure is a plurality of disc springs which are vertically stacked together.
Based on the technical scheme, under the action of a vertical earthquake, the disc spring on the lower portion of the support is vertically deformed, the guide rod enters the reserved groove, the top of the guide rod is in contact with the bottom of the groove, and vertical force can be transmitted. The rigidity of the disc spring set is far smaller than the structural rigidity, vertical deformation occurs, vertical earthquake motion is isolated and transmitted to an upper structure, and a part of vertical earthquake action energy is consumed. The groove formed in the middle of the pressure plate, the guide rod can slide in the groove, the friction material is arranged on the two sliding contact surfaces, and the friction material is arranged between the disc spring and the guide rod to reduce friction.
Based on the technical scheme, under the action of a vertical earthquake, the disc spring on the lower portion of the support is vertically deformed, the viscous damper enters the reserved groove, the self-vibration period of the structure can be prolonged, damping of a shock insulation layer is increased, and vibration energy of the structure is dissipated through hysteretic energy dissipation of the viscoelastic material so as to achieve the purpose of reducing structural power reaction. The rigidity of the disc spring set is far smaller than the structural rigidity, vertical deformation occurs, vertical earthquake motion is isolated and transmitted to an upper structure, and a part of vertical earthquake action energy is consumed. A groove is formed in the middle of the pressure plate, the cylindrical viscous damper can slide in the groove to play roles of energy consumption and limiting, and the disc spring group is arranged outside the viscous damper.
Further, the inner periphery of the spring shock absorption structure is provided with an anti-friction layer, and correspondingly, the outer periphery of the viscous damper is provided with the anti-friction layer.
Furthermore, the inner periphery of the spring damping structure is provided with an anti-friction layer, and correspondingly, the outer periphery of the guide rod is provided with an anti-friction layer.
Based on the technical scheme, the resistance can be reduced.
Specifically, the lower concave plate is horizontally arranged.
Specifically, the upper concave plate is horizontally arranged.
Furthermore, the upper concave plate and the lower connecting plate are provided with bolt holes for connection, and are respectively connected with the upper structure and the lower structure. The lower concave plate and the pressure plate are welded and fixed.
Compared with the prior art, the utility model, have following obvious outstanding substantive characteristics and showing the advantage:
1. the upper friction pendulum support has the advantages of low manufacturing cost, simple construction, strong bearing capacity, good stability, resetting function and flat torsion resistance besides the characteristics of a common plane sliding shock insulation system. When earthquake occurs, the special arc sliding surface isolates the structure from the ground, so as to prolong the vibration period of the structure and stagger the excellent period of earthquake waves, thereby greatly reducing the amplification effect of the structure caused by the action of earthquake, and having the function of shock isolation. In addition, the friction between the sliding surface of the friction pendulum support and the sliding block can be used for greatly consuming earthquake energy and reducing the energy input by earthquake, so that the energy-consuming function is realized.
2. The structure of the lower part consisting of the guide rod and the disc spring is more environment-friendly compared with a lead core rubber support. Whereas the belleville springs are subjected to an extremely large load in a small space. The deformation energy per unit volume of the disc spring is larger than that of other types of springs. Has good buffering and shock absorbing capacity, and particularly has more remarkable effects of absorbing impact and dissipating energy due to the surface friction resistance when the overlapping combination is adopted.
3. The structure of lower part by viscous damper and belleville spring is more environmental protection than lead core rubber support. Whereas the belleville springs are subjected to an extremely large load in a small space. The deformation energy per unit volume of the disc spring is larger than that of other types of springs. Has good buffering and shock absorbing capacity, and particularly has more remarkable effects of absorbing impact and dissipating energy due to the surface friction resistance when the overlapping combination is adopted. When the viscous damper deforms under the action of alternating stress, one part of energy is stored like potential energy, the other part of energy is converted into heat energy to be dissipated, and the effect of reducing the loss of seismic energy is well achieved.
The utility model discloses can realize three-dimensional shock insulation, its long service life, environmental protection, design are simple, easily installation, can the volume production, and low in cost.
Drawings
Fig. 1 is a structural sectional view of an embodiment of the three-dimensional seismic isolation bearing with a friction pendulum provided by the present invention.
Fig. 2 is a structural sectional view of another embodiment of the three-dimensional seismic isolation bearing with a friction pendulum provided by the present invention.
In fig. 1 and 2, the structures represented by the reference numerals are listed as follows:
1. the device comprises an upper concave plate, 2, a friction block, 3, a lower concave plate, 4, a pressure plate, 5, a disc spring, 6, a viscous damper, 7, a lower connecting plate, 8, a friction layer, 9, a friction plate, 10 and a guide rod.
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 and 2, a three-dimensional seismic isolation bearing with a friction pendulum type comprises a vertical seismic isolation mechanism and a friction pendulum bearing mechanism fixed on the vertical seismic isolation mechanism. According to the friction pendulum type three-dimensional shock insulation support with the technical scheme, the vertical shock insulation mechanism can perform vertical shock absorption, and the friction pendulum support mechanism can isolate vertical seismic oscillation, so that the multi-stage horizontal shock insulation capacity can be improved, and vertical seismic oscillation can be isolated.
In one embodiment, a friction pendulum support mechanism comprises: the friction block comprises a lower concave plate 3 with an upward concave surface, an upper concave plate 1 with a downward concave surface and arranged above the lower concave plate 3, and a friction block 2 pressed between the upper concave surface and the lower concave surface. The lower concave plate 3 has a lower concave surface provided with a friction layer 8. The upper concave plate 1 has an upper concave surface provided with a friction layer 8. The friction block 2 is provided with an upper convex surface matched with the upper concave surface and a lower convex surface matched with the lower concave surface, the upper convex surface and the lower convex surface are both provided with friction plates 9, and one friction layer 8 is in pressure joint with one corresponding friction plate 9. The lower concave plate 3 is horizontally arranged. The upper concave plate 1 is horizontally arranged. Based on the technical scheme, the friction pendulum support has good shock insulation effect as a shock insulation device under the action of a horizontal earthquake, and simultaneously has certain functions of self-resetting, energy consumption, torsion resistance and the like. Through swing, the self-vibration period of the structure is prolonged, the damping ratio is increased, the shock insulation function is realized, and a part of horizontal earthquake action energy is consumed.
In one embodiment, as shown in fig. 1, the vertical seismic isolation mechanism includes a lower link plate 7 horizontally disposed below the lower concave plate 3, a tubular spring shock absorbing structure vertically disposed on the lower link plate 7, an annular pressure plate 4 coaxially press-fitted on an upper end surface of the spring shock absorbing structure, and a viscous damper 6 vertically disposed in the spring shock absorbing structure. The lower end face of the spring shock absorption structure is in press connection with the lower connecting plate 7, and the spring shock absorption structure is a plurality of vertically stacked disc-shaped bullets. The lower end surface of the lower concave plate 3 is fixedly connected with the upper end surface of the pressing plate 4. The lower end of the viscous damper 6 is fixedly connected with a lower connecting plate 7, and the upper end of the viscous damper 6 penetrates through the middle space of the pressing plate 4 and is fixedly connected with the lower concave plate 3. The inner periphery of the spring shock absorption structure is provided with an anti-friction layer 8, and correspondingly, the outer periphery of the viscous damper 6 is provided with the anti-friction layer 8. Based on the technical scheme, under the action of a vertical earthquake, the disc spring 5 on the lower portion of the support is vertically deformed, the guide rod enters the reserved groove, the top of the guide rod is in contact with the bottom of the groove, and vertical force can be transmitted. The rigidity of the disc spring 5 group is far less than the structural rigidity, vertical deformation occurs, vertical earthquake motion is isolated and transmitted to an upper structure, and a part of vertical earthquake action energy is consumed. The groove formed in the middle of the pressure plate, the guide rod can slide in the groove, friction materials are arranged on the two sliding contact surfaces, and the friction materials are arranged between the disc spring 5 and the guide rod to reduce friction.
In one embodiment, as shown in fig. 2, the vertical seismic isolation mechanism includes a lower link plate 7 horizontally disposed below the lower concave plate 3, a tubular spring damping structure vertically disposed on the lower link plate 7, an annular pressure plate 4 coaxially pressed against an upper end surface of the spring damping structure, and a guide rod 10 vertically disposed in the spring damping structure. The lower end surface of the spring shock absorption structure is pressed on the lower connecting plate 7. The lower end surface of the lower concave plate 3 is fixedly connected with the upper end surface of the pressing plate 4. The lower end of the guide rod 10 is fixedly connected with the lower connecting plate 7, and the upper end of the guide rod 10 faces to the middle space of the pressing plate 4. The inner circumference of the spring shock absorption structure is provided with an anti-friction layer 8, and correspondingly, the outer circumference of the guide rod 10 is provided with the anti-friction layer 8. Based on the technical scheme, under the action of a vertical earthquake, the disc spring 5 at the lower part of the support is vertically deformed, the viscous damper enters the reserved groove, the natural vibration period of the structure can be prolonged, the damping of a shock insulation layer is increased, and the vibration energy of the structure is dissipated through the hysteresis energy consumption of the viscoelastic material so as to achieve the purpose of reducing the dynamic reaction of the structure. The rigidity of the disc spring 5 group is far less than the structural rigidity, vertical deformation occurs, vertical earthquake motion is isolated and transmitted to an upper structure, and a part of vertical earthquake action energy is consumed. A groove is formed in the middle of the pressure plate, the cylindrical viscous damper can slide in the groove to play roles of energy consumption and limiting, and a disc spring 5 group is arranged outside the viscous damper.
In one embodiment, the upper concave plate 1 and the lower connecting plate 7 are provided with connecting bolt holes for connecting with the upper structure and the lower structure respectively. The upper connecting plate is provided with four bolt holes with the diameter of 12mm and is connected with the upper structure. The lower connecting plate is provided with four bolt holes with the diameter of 12mm and is connected with the lower foundation. The lower concave plate 3 and the pressure plate 4 are welded and fixed.
Based on the utility model provides a three-dimensional isolation bearing of area friction pendulum-type, support are when static and motion state, and belleville spring and viscous damper bear the structure on support upper portion jointly. When a horizontal earthquake occurs, the lower friction pendulum support can extend the self-vibration period of the structure, increase the damping ratio, realize the shock insulation function and consume a part of horizontal earthquake action energy through swinging. Under the action of a vertical earthquake, the disc spring on the lower portion of the support is vertically deformed, the guide rod enters the reserved groove, the top of the guide rod is in contact with the bottom of the groove, and vertical force can be transmitted. Based on the technical scheme, under the action of a vertical earthquake, the disc spring on the lower portion of the support is vertically deformed, the viscous damper enters the reserved groove, the self-vibration period of the structure can be prolonged, damping of a shock insulation layer is increased, and vibration energy of the structure is dissipated through hysteretic energy dissipation of the viscoelastic material so as to achieve the purpose of reducing structural power reaction.
The utility model provides a shock insulation support can be applied to bridge structures, building structure in, can provide three-dimensional shock insulation ability well. The friction pendulum support at the upper part is formed by combining two concave discs and a sliding block, has the advantages of good stability, reset function, flat torsion resistance and the like, and can realize multi-stage shock insulation capability through reasonable design. The vertical disc spring provides smaller vertical rigidity, and meanwhile, the guide rod achieves a limiting function, consumes part of seismic energy and can isolate vertical seismic oscillation. Therefore, the invention has the functions of self-resetting, reducing vertical and horizontal earthquake action and the like, and reduces structural damage and earthquake reconstruction cost.
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 area friction pendulum-type which characterized in that includes:
a vertical shock isolation mechanism;
and the friction pendulum support mechanism is fixed on the vertical shock insulation mechanism.
2. The three-dimensional seismic isolation bearing with a friction pendulum of claim 1, wherein the friction pendulum bearing mechanism comprises:
the top of the lower concave plate (3) is provided with a downward concave surface which is concave downwards, and a friction layer (8) is arranged on the surface of the lower concave surface;
the upper concave plate (1) is arranged above the lower concave plate (3), the bottom of the upper concave plate (1) is provided with an upper concave surface which is concave upwards, and the surface of the upper concave surface is provided with a friction layer (8);
the crimping is in go up the concave surface with clutch blocks (2) between the concave surface down, clutch blocks (2) be provided with go up concave surface complex epirelief to be provided with concave surface complex convexity down, go up the convex surface with all be provided with friction disc (9), one on the convex surface down friction disc (9) that correspond of frictional layer (8) crimping.
3. The three-dimensional seismic isolation bearing with friction pendulum of claim 2, wherein the vertical seismic isolation mechanism comprises:
a lower connecting plate (7) horizontally arranged below the lower concave plate (3);
the lower end face of the spring shock absorption structure is in pressure joint with the lower connecting plate (7);
the lower end face of the lower concave plate (3) is fixedly connected with the upper end face of the pressure plate (4);
and vertical setting is in viscous damper (6) or guide arm (10) in the spring shock-absorbing structure, the lower extreme fixed connection of viscous damper (6) link board (7) down, the upper end of viscous damper (6) runs through the middle part space and the fixed connection of clamp plate (4) lower concave plate (3), perhaps, the lower extreme fixed connection of guide arm (10) link board (7) down, the upper end orientation of guide arm (10) the middle part space setting of clamp plate (4).
4. The three-dimensional seismic isolation bearing with the friction pendulum of claim 3, wherein: the inner periphery of the spring damping structure is provided with an anti-friction layer (8), correspondingly, the outer periphery of the viscous damper (6) is provided with the anti-friction layer (8), or the outer periphery of the guide rod (10) is provided with the anti-friction layer (8).
5. The three-dimensional seismic isolation bearing with the friction pendulum of claim 4, wherein: the spring damping structure is a plurality of disc springs (5) which are vertically stacked together.
6. The three-dimensional seismic isolation bearing with the friction pendulum of any one of claims 2 to 5, wherein: the lower concave plate (3) is horizontally arranged; the upper concave plate (1) is horizontally arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020070802.0U CN212001610U (en) | 2020-01-14 | 2020-01-14 | Three-dimensional shock insulation support of area friction pendulum-type |
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| CN202020070802.0U CN212001610U (en) | 2020-01-14 | 2020-01-14 | Three-dimensional shock insulation support of area friction pendulum-type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681854A (en) * | 2020-12-10 | 2021-04-20 | 清华大学 | Double-friction pendulum three-dimensional vibration isolation support |
| CN112682457A (en) * | 2021-01-07 | 2021-04-20 | 天津城建大学 | Vibration isolation/vibration support |
| CN113202204A (en) * | 2021-06-07 | 2021-08-03 | 范雷彪 | Pendulum type support with longitudinal buffering function |
-
2020
- 2020-01-14 CN CN202020070802.0U patent/CN212001610U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681854A (en) * | 2020-12-10 | 2021-04-20 | 清华大学 | Double-friction pendulum three-dimensional vibration isolation support |
| CN112682457A (en) * | 2021-01-07 | 2021-04-20 | 天津城建大学 | Vibration isolation/vibration support |
| CN113202204A (en) * | 2021-06-07 | 2021-08-03 | 范雷彪 | Pendulum type support with longitudinal buffering function |
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