CN114045951A - Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber - Google Patents
Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber Download PDFInfo
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- CN114045951A CN114045951A CN202111181245.5A CN202111181245A CN114045951A CN 114045951 A CN114045951 A CN 114045951A CN 202111181245 A CN202111181245 A CN 202111181245A CN 114045951 A CN114045951 A CN 114045951A
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- 230000035939 shock Effects 0.000 title claims abstract description 77
- 238000009413 insulation Methods 0.000 title claims abstract description 72
- 238000002955 isolation Methods 0.000 title claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 238000013016 damping Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 22
- 239000002783 friction material Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 235000013372 meat Nutrition 0.000 claims description 9
- 238000002788 crimping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 28
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- 238000006073 displacement reaction Methods 0.000 abstract description 16
- 230000009467 reduction Effects 0.000 abstract description 8
- 230000006870 function Effects 0.000 description 16
- 230000007613 environmental effect Effects 0.000 description 14
- 238000005265 energy consumption Methods 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
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- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
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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
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Abstract
The invention belongs to the technical field of seismic isolation and reduction of engineering structures, and particularly relates to a combined three-dimensional seismic isolation or vibration isolation support of an anti-pulling friction pendulum and thick-flesh rubber, which comprises the following components: an anti-pulling friction pendulum type shock isolation or vibration isolation mechanism; the thick-meat rubber support mechanism is fixed at the lower part of the anti-pull friction pendulum type shock insulation or vibration isolation mechanism; and the sleeve type connecting structure is used for reducing the swing amplitude of the thick-meat rubber support mechanism and preventing the thick-meat rubber support mechanism from overturning, and the thick-meat rubber support mechanism is arranged in the sleeve type connecting structure. The technical scheme avoids lifting damage, overlarge swinging and overturning effects of the support, and has enough swinging space to meet the requirement of horizontal displacement, thereby realizing good horizontal shock insulation/vibration function.
Description
Technical Field
The invention belongs to the technical field of seismic isolation and reduction of engineering structures, and particularly relates to a combined three-dimensional seismic isolation or vibration isolation support for an anti-pulling friction pendulum and thick-flesh rubber.
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 rubber shock-insulation support and friction pendulum support for buildings have the following defects: firstly, vertical earthquake motion and horizontal micro-vibration cannot be effectively isolated. 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, environmental vibrations such as subways and high-speed rails, in particular the vertical component of micro-vibration can have a relatively serious influence on the living comfort of people. 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, and is easy to be pulled or overturned to be damaged. Generally speaking, set up the shock insulation layer that horizontal rigidity is littleer, can obtain better shock insulation effect, but simultaneously, too big shock insulation displacement of layer can be led to the horizontal rigidity of undersize, and the structure takes place the destruction of different grade type easily under big shake or other external factors effect, and its security is difficult to the guarantee.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a combined three-dimensional shock insulation or vibration isolation support for an anti-pulling friction pendulum and thick rubber. The vibration isolation support can be used for buildings affected by environmental vibration, has the effect of isolating earthquake motion while isolating the environmental vibration, has good shock isolation effects on vertical earthquake, environmental micro-vibration, horizontal earthquake motion and the like, and can effectively avoid the lifting damage, overlarge swinging and overturning effects of the support.
The technical scheme provided by the invention is as follows:
a combined three-dimensional shock insulation or vibration isolation support for an anti-pulling friction pendulum and thick-flesh rubber comprises:
an anti-pulling friction pendulum type shock isolation or vibration isolation mechanism;
the thick-meat rubber support mechanism is fixed at the lower part of the anti-pull friction pendulum type shock insulation or vibration isolation mechanism;
and the sleeve type connecting structure is used for reducing the swing amplitude of the thick-meat rubber support mechanism and preventing the thick-meat rubber support mechanism from overturning, and the thick-meat rubber support mechanism is arranged in the sleeve type connecting structure.
Although the technical scheme of the sliding shock insulation of the friction pendulum is quite good in shock insulation effect, the friction pendulum type support does not have the anti-pulling capacity in the vertical direction, when the support is pulled, the cover plate is easily separated from the sliding block, and theoretically, a large corner can be generated in the vertical direction. The technical scheme avoids lifting damage, overlarge swinging and overturning effects of the support, and has enough swinging space to meet the requirement of horizontal displacement, thereby realizing good horizontal shock insulation/vibration function.
In the technical scheme, the vertical vibration isolation system of the support is mainly used for isolating vertical seismic oscillation, environmental vibration and the like by the existing thick-flesh rubber support. The thick-layer rubber support has good vertical shock insulation/vibration performance, is widely applied to shock insulation/vibration of a base of a building, but has great limitation on the shock insulation/vibration performance because the problem of small vertical rigidity easily causes the swinging effect or overturning damage of an upper structure, and is more beneficial to the exertion of good vertical shock insulation/vibration function of the thick-layer rubber support.
Among the above-mentioned technical scheme, utilize the design of annular sleeve to fix and restrain vertical shock insulation/mechanism that shakes, played effects such as location and protection to inside thick flesh rubber support, restricted its swing that probably appears, topple or produce too big corner scheduling problem, guaranteed that the destruction of horizontal shear form can not appear in interior outer structure. The presence of the sleeve also facilitates the manufacture and connection of the modular unit, providing a significant improvement in both safety and performance.
Specifically, the anti-pulling friction pendulum type vibration isolation or isolation mechanism includes:
the friction pendulum lower seat plate is horizontally arranged;
the friction sliding block is in pressure joint with the upper end face of the friction pendulum lower seat plate;
the friction pendulum upper seat plate is in press-connection with the friction slider and horizontally arranged, a cylindrical structure is arranged on the lower end face of the friction pendulum upper seat plate, the cylindrical structure is provided with an annular bottom plate, the upper portion of the friction pendulum lower seat plate and the friction slider extend into the cylindrical structure, and the inner diameter of the bottom plate is smaller than the outer diameter of the upper portion of the friction pendulum upper seat plate.
Furthermore, a first friction material layer is arranged on the contact surface of the friction sliding block and the upper seat plate or the lower seat plate of the friction pendulum.
The technical scheme is matched with and additionally provided with the friction material to avoid lifting damage, overlarge swinging and overturning effects of the support to the maximum extent, and enough swinging space can meet the displacement requirement in the horizontal direction, so that a good horizontal shock insulation/vibration function is realized.
Furthermore, the surface of the upper seat plate of the friction pendulum, which corresponds to the bottom plate, is provided with an anti-collision material layer.
The technical scheme is matched with an anti-collision material to avoid lifting damage, overlarge swinging and overturning effects of the support to the maximum extent, and an enough swinging space can meet the displacement requirement in the horizontal direction, so that a good horizontal shock insulation/vibration function is realized.
Specifically, the sleeve type connecting structure includes:
the bottom surface of the annular inner sleeve is fixedly provided with a damping slide block, and the thick-meat rubber support mechanism is fixed in the annular inner sleeve;
the annular inner sleeve is arranged in the outer sleeve cylinder, and the damping slide block is pressed on the inner bottom surface of the annular inner sleeve;
and a plurality of horizontal return springs fixed between the outer wall of the annular inner sleeve and the inner wall of the peripheral sleeve cylinder.
In the technical scheme, the damping slide block is designed to play a role in connecting the lower part of the annular sleeve with the outer sleeve cylinder, so that the annular sleeve mechanism limited by the horizontal return spring can stably slide in the peripheral sleeve cylinder in a manner of clinging to the bottom, and the integral stability of a combined structure of the annular sleeve mechanism is ensured; secondly, friction force is generated at the bottom of the internal mechanism when the internal mechanism moves in the horizontal direction through the friction material on the contact surface of the damping slide block and the peripheral sleeve cylinder, and a certain degree of friction energy dissipation effect in the horizontal direction is achieved; and thirdly, the damping slide block can fully utilize the damping characteristic of the damping slide block in the vertical design, and effectively help the vertical seismic oscillation and the vibration reduction and isolation/vibration and energy dissipation of environmental vibration, so that the vertical integral design function is more complete.
In the technical scheme, the existence of the peripheral sleeve cylinder is equivalent to a storage space for the whole combined device, the improved anti-pulling friction pendulum support is used as an upper cover on the sleeve cylinder, the vertical shock insulation/vibration isolation mechanism and some auxiliary mechanisms of the device are completely contained in the sleeve cylinder, and on the basis of ensuring the integrity of the device, the guiding element that all shock insulation/vibration isolation elements in the sleeve cylinder can well play the effect is considered. From the outside, the sleeve cylinder can ensure that the device has enough horizontal rigidity and vertical rigidity, avoids possible material damage and structural damage in the practical application process, and is difficult to swing, turn or overturn the whole device; from the inside, the combined structure design of horizontal direction shock insulation/vibration and vertical shock insulation/vibration in the sleeve cylinder realizes horizontal direction and vertical direction motion decoupling while ensuring the horizontal position limitation of the internal mechanism, so that the vertical shock insulation/vibration system and the horizontal direction shock insulation/vibration system work relatively independently, small displacement or deformation is generated only in a single direction on one side, and adverse effects generated when the vertical direction shock insulation/vibration mechanism and the horizontal direction shock insulation/vibration mechanism respectively play functions are avoided.
Specifically, a second friction material layer is arranged on a contact surface of the damping slide block and the peripheral sleeve cylinder.
Specifically, the number of the horizontal return springs is three, and the horizontal return springs are uniformly arranged around the circumferential direction of the thick-meat rubber support mechanism.
Three groups of horizontal reset spiral springs are symmetrically arranged, and mainly play a role in resetting the lower vertical shock insulation/vibration mechanism after the lower vertical shock insulation/vibration mechanism slides horizontally, so that overlarge displacement of the device in the horizontal direction is avoided. When the springs in a certain direction are stretched or compressed, the corresponding springs can be compressed or stretched, and the annular sleeve is protected to the maximum extent to be always kept at the middle position of the whole combined device through the deformation and energy consumption hysteresis of the spiral springs. Meanwhile, the reset spring group can also assist in isolating horizontal earthquake motion and environmental vibration, and dissipating energy, absorbing vibration and/or damping vibration.
Specifically, a gap is arranged between the outer wall of the thick-meat rubber support mechanism and the inner wall of the sleeve type connecting structure.
The invention carries out design improvement of pulling resistance and limiting on the basis of horizontal shock insulation/vibration of the friction pendulum support, avoids the possible pulling damage, overlarge swinging and overturning effects of the original support to the maximum extent by additionally arranging the anti-collision material through the special structural shape design, ensures enough horizontal swinging space and effectively realizes the function of horizontal shock insulation/vibration.
In the invention, the size and performance parameters of the thick-meat rubber support, the damping slide block and the like in the vertical shock isolation/vibration system and the size and performance parameters of the friction pendulum support, the spiral spring and the like in the horizontal shock isolation/vibration system can be designed according to the actual engineering condition and different shock resistance fortification levels and vibration control requirements, and the method has stronger flexibility and engineering application prospect.
Compared with the traditional vibration isolation support (such as a lead core rubber vibration isolation support, a common friction pendulum vibration isolation support and the like), the vibration isolation support has the advantages that:
1) in the aspect of a vertical shock insulation/vibration system, the problem that the vertical rigidity of a common thick-meat rubber support is small, horizontal shearing damage is easy to occur or the upper structure is prone to swinging effect and overturning damage is solved, and the vertical shock insulation/vibration system is more beneficial to the exertion of good vertical shock insulation/vibration functions of the thick-meat rubber support.
2) In the aspect of a horizontal shock insulation/vibration system, through special shapes and structural design, friction materials and anti-collision materials are additionally arranged to avoid lifting damage, overlarge swinging and overturning effects of the support to the maximum extent, and the friction pendulum system can be better applied to a large-scale structure with a lighter upper cover, a space net-shaped structure, a large-span structure and a high-sedimentation-risk area structure.
3) The horizontal reset spring group can enable the mechanism in the device to reset in time after horizontal sliding, and can assist in isolating horizontal earthquake motion and environmental vibration and dissipating input energy.
4) The design of the damping slide block enables the internal mechanism of the device to be tightly attached to the bottom and stably slide in the peripheral sleeve cylinder, and the device can play an auxiliary role in horizontal and vertical shock absorption/vibration isolation and energy dissipation.
5) The combined design of multiple elements does not have the problem of high cost or environmental pollution, has the convenience of replacement for damaged elements, and has high engineering utilization value and wide application prospect in good seismic mitigation and isolation/vibration efficiency.
Compared with the traditional vibration isolation measures (such as vibration isolation barriers, vibration isolation ditches, filling ditches and the like) of the building structure, the invention has the advantages that:
1) the invention can more effectively isolate three-dimensional seismic oscillation and environmental vibration, not only vertical or horizontal one-way shock insulation/vibration, and realizes motion decoupling of horizontal and vertical shock insulation/vibration through structural design, and the two can not mutually influence when respectively isolating the one-way shock insulation/vibration, and the efficiency of the invention is greatly superior to that of the traditional linear shock insulation/vibration reduction measures.
2) The invention has higher safety when encountering strong earthquake/vibration (such as major earthquake, vehicle impact and the like). The concrete expression is as follows: when the system is subjected to a strong vibration effect, the displacement is large. Due to the self-adaptive rigidity characteristic, the system rigidity is high at the moment, and the structure can be limited from generating excessive displacement.
3) The system has clear elements, and the combination of a plurality of shock insulation, vibration reduction and energy consumption elements does not overlap simple functions, but jointly plays a better role, so that each part can fully play the respective shock insulation, vibration reduction or energy consumption efficiency through effective connection, the design and the installation are simple and convenient, and unnecessary structural arrangement is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the combined three-dimensional vibration isolating or isolating support for the anti-pull friction pendulum and the thick rubber provided by the invention.
In fig. 1, the structure represented by each reference numeral is listed as follows:
1. a seat board is arranged on the friction pendulum; 2. a friction slider; 3. the seat board is arranged under the friction pendulum; 4. a first friction material layer; 5. a layer of impact-resistant material; 6. a thick meat rubber support mechanism; 7. an annular inner sleeve; 8. a horizontal return spring; 9. a peripheral sleeve cylinder; 10. a damping slider; 11. a second friction material layer; 12. a base plate.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
In one embodiment, as shown in fig. 1, the combined three-dimensional vibration isolation or isolation support of the anti-pull friction pendulum and the thick rubber comprises: an anti-pulling friction pendulum type shock isolation or vibration isolation mechanism; a thick-meat rubber support mechanism 6 fixed at the lower part of the anti-pull friction pendulum type shock insulation or vibration isolation mechanism; and a sleeve type connecting structure for reducing the swing amplitude of the thick meat rubber support mechanism 6 and preventing the thick meat rubber support mechanism 6 from overturning, the thick meat rubber support mechanism 6 being provided inside thereof.
The technical scheme avoids lifting damage, overlarge swinging and overturning effects of the support, and has enough swinging space to meet the displacement requirement in the horizontal direction, thereby realizing good horizontal shock insulation/vibration function.
In the technical scheme, the vertical vibration isolation system of the support is mainly used for isolating vertical seismic oscillation, environmental vibration and the like by the existing thick-flesh rubber support. The thick-layer rubber support has good vertical shock insulation/vibration performance, is widely applied to shock insulation/vibration of a base of a building, but has great limitation on the shock insulation/vibration performance because the problem of small vertical rigidity easily causes the swinging effect or overturning damage of an upper structure, and is more beneficial to the exertion of good vertical shock insulation/vibration function of the thick-layer rubber support.
In the technical scheme, the vertical shock insulation/vibration mechanism is fixed and restrained by the design of the annular sleeve, the thick-meat rubber support inside is positioned and protected, the problems of swinging, overturning or overlarge rotation angle and the like which possibly occur are limited, and the inner structure and the outer structure are prevented from being damaged in a horizontal shearing mode. The presence of the sleeve also facilitates the manufacture and connection of the modular unit, providing a significant improvement in both safety and performance.
In one embodiment, as shown in fig. 1, the anti-pullout friction pendulum vibration isolation or isolation mechanism includes: a horizontally arranged friction pendulum lower seat plate 3; the friction sliding block 2 is in pressure joint with the upper end face of the friction pendulum lower seat plate 3; the friction pendulum upper seat plate is in pressure joint with a horizontally arranged friction pendulum upper seat plate 1 on a friction sliding block 2, a cylindrical structure is arranged on the lower end face of the friction pendulum upper seat plate, the cylindrical structure is provided with an annular bottom plate 12, the upper portion of the friction pendulum lower seat plate 3 and the friction sliding block 2 extend into the cylindrical structure, and the inner diameter of the bottom plate 12 is smaller than the outer diameter of the upper portion of the friction pendulum upper seat plate 1.
In one embodiment, as shown in fig. 1, the contact surface of the friction slider 2 and the friction pendulum upper seat plate 1 or the friction pendulum lower seat plate 3 is provided with a first friction material layer 4. The technical scheme is matched with and additionally provided with the friction material to avoid lifting damage, overlarge swinging and overturning effects of the support to the maximum extent, and enough swinging space can meet the displacement requirement in the horizontal direction, so that a good horizontal shock insulation/vibration function is realized.
In one embodiment, as shown in fig. 1, the surface of the friction pendulum upper seat plate 1 corresponding to the bottom plate 12 is provided with a layer of anti-collision material 5. The technical scheme is matched with an additional anti-collision material to avoid lifting damage, overlarge swinging and overturning effects of the support to the maximum extent, and an enough swinging space can meet the displacement requirement in the horizontal direction, so that a good horizontal shock insulation/vibration function is realized.
In one embodiment, as shown in fig. 1, the telescopic connection comprises: the annular inner sleeve 7 is fixed with a damping slide block 10 on the bottom surface, and the thick meat rubber support mechanism 6 is fixed in the annular inner sleeve; a peripheral sleeve cylinder 9, in which the annular inner sleeve 7 is arranged, and the damping slider 10 is pressed against the inner bottom surface thereof; and a plurality of horizontal return springs 8 fixed between the outer wall of the annular inner sleeve 7 and the inner wall of the peripheral sleeve 9.
In the technical scheme, the damping slide block is designed to play a role in connecting the lower part of the annular sleeve with the outer sleeve cylinder, so that the annular sleeve mechanism limited by the horizontal return spring can stably slide in the peripheral sleeve cylinder in a manner of clinging to the bottom, and the integral stability of a combined structure of the annular sleeve mechanism is ensured; and secondly, the damping slide block can fully utilize the damping characteristic of the damping slide block in the vertical design, and effectively help the vertical seismic oscillation and the vibration reduction and isolation/vibration and energy dissipation of environmental vibration, so that the vertical integral design function is more complete.
In the technical scheme, the existence of the peripheral sleeve cylinder is equivalent to a storage space for the whole combined device, the improved anti-pulling friction pendulum support is used as an upper cover on the sleeve cylinder, the vertical shock insulation/vibration isolation mechanism and some auxiliary mechanisms of the device are completely contained in the sleeve cylinder, and on the basis of ensuring the integrity of the device, the guiding element that all shock insulation/vibration isolation elements in the sleeve cylinder can well play the effect is considered. From the outside, the sleeve cylinder can ensure that the device has enough horizontal rigidity and vertical rigidity, avoids possible material damage and structural damage in the practical application process, and is difficult to swing, turn or overturn the whole device; from the inside, the combined structure design of horizontal direction shock insulation/vibration and vertical shock insulation/vibration in the sleeve cylinder realizes horizontal direction and vertical direction motion decoupling while ensuring the horizontal position limitation of the internal mechanism, so that the vertical shock insulation/vibration system and the horizontal direction shock insulation/vibration system work relatively independently, small displacement or deformation is generated only in a single direction on one side, and adverse effects generated when the vertical direction shock insulation/vibration mechanism and the horizontal direction shock insulation/vibration mechanism respectively play functions are avoided.
In one embodiment, as shown in FIG. 1, a second layer of friction material 11 is disposed on the interface of the dampening shoe 10 and the peripheral sleeve 9. In the technical scheme, the friction material on the contact surface of the damping slide block and the peripheral sleeve cylinder can enable the bottom of the internal mechanism to generate friction force when the internal mechanism moves in the horizontal direction, and plays a role in horizontal friction energy consumption to a certain extent.
In one embodiment, as shown in fig. 1, the number of the horizontal return springs 8 is three, and the horizontal return springs are uniformly arranged around the circumferential direction of the thick-flesh rubber seating mechanism 6. In the technical scheme, three groups of horizontal reset spiral springs are symmetrically arranged, and the three groups of horizontal reset spiral springs mainly play a role in resetting the lower vertical shock isolation/vibration mechanism after sliding horizontally, so that overlarge displacement of the device in the horizontal direction is avoided. When the springs in a certain direction are stretched or compressed, the corresponding springs can be compressed or stretched, and the annular sleeve is protected to the maximum extent to be always kept at the middle position of the whole combined device through the deformation and energy consumption hysteresis of the spiral springs. Meanwhile, the reset spring group can also assist in isolating horizontal earthquake motion and environmental vibration, and dissipating energy, absorbing vibration and/or damping vibration.
The invention adds the externally-enclosed annular sleeve on the basis of the thick-meat rubber support, plays the role of restraining and protecting the internal support, ensures horizontal spacing of an internal mechanism and realizes horizontal and vertical motion decoupling at the same time through the sliding between the damping slide block under the sleeve and the peripheral sleeve cylinder, ensures that the vertical and horizontal mechanisms work independently, generates small-amplitude displacement or deformation only in one direction at one side, and avoids adverse effects when the internal mechanism and the peripheral sleeve cylinder respectively play functions.
Three groups of horizontal reset springs are additionally arranged between the annular sleeve for fixing the vertical shock insulation system and the peripheral sleeve cylinder of the integral structure of the accommodating device, so that the internal mechanism can automatically reset after horizontally sliding under the influence of various shocks/vibrations, and the mechanism is effectively protected to be always kept at the middle position in the whole combined cylinder through the deformation and energy consumption hysteresis of the spiral springs. Meanwhile, the reset spring group can also assist in isolating horizontal earthquake motion and environmental vibration, and dissipating energy, absorbing vibration and/or damping vibration.
According to the invention, the damping slide block is additionally arranged at the bottom of the annular sleeve for fixing the vertical shock insulation system and the upper part of the peripheral sleeve cylinder of the integral structure of the accommodating device, so that an effective transition can be formed between the annular sleeve and the peripheral sleeve cylinder, and the annular sleeve mechanism limited by the horizontal return spring can stably slide in the peripheral sleeve cylinder in a manner of clinging to the bottom. Not only plays a certain degree of energy consumption role through friction, but also can play a role in the seismic isolation/vibration reduction and energy dissipation of vertical seismic oscillation and environmental vibration.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides an anti-drawing friction pendulum and three-dimensional shock insulation of combination formula or vibration isolation bearing of thick flesh rubber which characterized in that includes:
an anti-pulling friction pendulum type shock isolation or vibration isolation mechanism;
a thick-meat rubber support mechanism (6) fixed at the lower part of the anti-pull friction pendulum type shock insulation or vibration isolation mechanism;
and a sleeve type connecting structure for reducing the swing amplitude of the thick meat rubber support mechanism (6) and preventing the thick meat rubber support mechanism (6) from overturning, wherein the thick meat rubber support mechanism (6) is arranged in the sleeve type connecting structure.
2. The combined three-dimensional seismic or vibration isolation bearing of an anti-pull friction pendulum and a thick rubber according to claim 1, wherein the anti-pull friction pendulum type seismic or vibration isolation mechanism comprises:
a friction pendulum lower seat plate (3) which is horizontally arranged;
the friction sliding block (2) is in pressure joint with the upper end face of the friction pendulum lower seat plate (3);
the friction pendulum upper seat plate (1) is in crimping connection with the friction slider (2) and horizontally arranged, a cylindrical structure is arranged on the lower end face of the friction pendulum upper seat plate, the cylindrical structure is provided with an annular bottom plate (12), the upper portion of the friction pendulum lower seat plate (3) and the friction slider (2) stretch into the cylindrical structure, and the inner diameter of the bottom plate (12) is smaller than the outer diameter of the upper portion of the friction pendulum upper seat plate (1).
3. The combined three-dimensional shock-insulation or vibration-isolation support for the anti-pulling friction pendulum and the thick rubber as claimed in claim 2, wherein: the friction slider (2) and the friction pendulum upper seat plate (1) or the friction pendulum lower seat plate (3) are provided with a first friction material layer (4) on the contact surface.
4. The combined three-dimensional shock-insulation or vibration-isolation support for the anti-pulling friction pendulum and the thick rubber as claimed in claim 2, wherein: and an anti-collision material layer (5) is arranged on the surface of the upper seat plate (1) of the friction pendulum corresponding to the bottom plate (12).
5. The combined three-dimensional seismic or vibration isolation mount of an anti-pull friction pendulum and heavy rubber as claimed in claim 1, wherein said telescopic connection comprises:
the bottom surface of the annular inner sleeve (7) is fixedly provided with a damping slide block (10), and the thick meat rubber support mechanism (6) is fixed in the annular inner sleeve;
a peripheral sleeve cylinder (9) in which the annular inner sleeve (7) is disposed, the damping slider (10) being crimped on an inner bottom surface thereof;
and a plurality of horizontal return springs (8) fixed between the outer wall of the annular inner sleeve (7) and the inner wall of the peripheral sleeve cylinder (9).
6. The combined three-dimensional shock-insulation or vibration-isolation support for the anti-pulling friction pendulum and the thick rubber as claimed in claim 5, wherein: and a second friction material layer (11) is arranged on the contact surface of the damping slide block (10) and the peripheral sleeve cylinder (9).
7. The combined three-dimensional shock-insulation or vibration-isolation support for the anti-pulling friction pendulum and the thick rubber as claimed in claim 5, wherein: the number of the horizontal return springs (8) is three, and the horizontal return springs are uniformly arranged around the circumferential direction of the thick-meat rubber support mechanism (6).
8. The combined three-dimensional shock-insulation or vibration-isolation support for the anti-pulling friction pendulum and the thick rubber as claimed in any one of claims 1 to 4, wherein: a gap is arranged between the outer wall of the thick-meat rubber support mechanism (6) and the inner wall of the sleeve type connecting structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181245.5A CN114045951A (en) | 2021-10-11 | 2021-10-11 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181245.5A CN114045951A (en) | 2021-10-11 | 2021-10-11 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
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| CN114045951A true CN114045951A (en) | 2022-02-15 |
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| CN202111181245.5A Pending CN114045951A (en) | 2021-10-11 | 2021-10-11 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
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| CN (1) | CN114045951A (en) |
Cited By (2)
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| CN115467557A (en) * | 2022-09-22 | 2022-12-13 | 山东建筑大学工程鉴定加固研究院有限公司 | Building displacement vibration damping device and method |
| CN115749406A (en) * | 2022-10-03 | 2023-03-07 | 北京工业大学 | Self-resetting anti-swing three-dimensional shock-insulation friction pendulum support |
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