CN113236002A - Multi-stage vertical shock insulation energy dissipation system based on pre-pressed spiral spring and viscous damper - Google Patents
Multi-stage vertical shock insulation energy dissipation system based on pre-pressed spiral spring and viscous damper Download PDFInfo
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- CN113236002A CN113236002A CN202110333759.1A CN202110333759A CN113236002A CN 113236002 A CN113236002 A CN 113236002A CN 202110333759 A CN202110333759 A CN 202110333759A CN 113236002 A CN113236002 A CN 113236002A
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- viscous damper
- shock insulation
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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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- 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
Abstract
The invention relates to a multi-stage vertical shock insulation energy dissipation system based on a pre-pressed spiral spring and a viscous damper, which comprises a vertical shock insulation top plate (1), a pre-pressed spring column base (2), a pre-pressed spring column fixing connecting piece (3), a viscous damper base (4), a viscous damper fixing connecting piece (5), a pre-pressed spring column (6), a viscous damper (7), a limiting shaft (8), a limiting shaft connecting piece (9), a frame column (1-1) and a frame beam (1-2). The vertical deformation of the static force lower support can be effectively controlled, enough bearing capacity, multi-stage rigidity and enough deformability can be provided, and finally the shock absorption and isolation effect is achieved. The energy dissipation system can be combined with the existing horizontal shock isolation device to play a role in three-dimensional shock isolation and reduction, can also be used independently, and only plays a role in vertical shock isolation and reduction.
Description
Technical Field
The invention belongs to the technical field of engineering structure earthquake resistance, and particularly relates to a multi-stage vertical shock insulation energy dissipation system based on a pre-pressed spiral spring and a viscous damper.
Background
The earthquake activity frequency of China is high, the intensity is high, and the distribution area is wide. With the economic development, the number of various large-span building structures such as gymnasiums, waiting halls, museums and the like is increased, and the buildings become landmark public buildings, and are dense in population and large in mobility.
After years of systematic research on large-span structural systems, domestic scholars have proposed a complete anti-seismic design method for the structural systems and use the anti-seismic design method in engineering practice. However, the existing design methods mostly use the self seismic capacity of the large-span structure, the seismic damage on the joint of the large-span upper structure and the large-span lower structure is obvious in multiple strong earthquakes, and the influence of the vertical seismic action on the large-span structure system cannot be ignored. The existing rubber support and sliding support which are widely applied aim at realizing horizontal shock insulation, do not have vertical shock insulation capability, and cannot provide vertical shock insulation function for a large-span space structure. A small amount of vertical shock insulation supports capable of providing vertical shock insulation functions have a limited effect of prolonging the vertical period of the upper structure.
For example, the patent of the invention in china with the publication number CN 106835958B discloses a three-dimensional seismic isolation bearing, which comprises a middle supporting platform, an upper supporting platform and a critical unlocking vertical seismic isolation unit formed by structures between the middle supporting platform and the upper supporting platform, and can ensure the vertical bearing capacity and stability of the three-dimensional seismic isolation bearing while ensuring that the three-dimensional seismic isolation bearing has a strong vertical seismic isolation function. The horizontal shock insulation unit has the functions of a horizontal sliding plate support and a damper at the same time, so that the internal space of the supporting platform can be fully utilized; under the action of earthquake in any direction of the horizontal plane, the horizontal shock insulation unit can realize energy consumption and shock insulation; when the horizontal shock insulation unit is used for the comprehensive action of horizontal earthquakes and vertical earthquakes, the horizontal shock insulation unit has larger vertical bearing capacity and pulling resistance, and can resist swinging and overturn when being used for shock insulation of high-rise buildings. But the self-resetting capability of the horizontal seismic isolation unit in the invention is weak.
For another example, the chinese patent application with publication number CN108842919A discloses a three-dimensional seismic isolation bearing, which includes a horizontal seismic isolation portion and a vertical seismic isolation portion vertically stacked together, where the horizontal seismic isolation portion includes lead core laminated rubber, a rubber protection layer covering and attached around the lead core laminated rubber, and an upper connection layer and a lower connection layer respectively fixedly connected to the top surface and the bottom surface of the lead core laminated rubber; the vertical shock insulation part comprises a thick meat rubber support, and an upper connecting layer and a lower connecting layer which are respectively and fixedly connected to the top surface and the bottom surface of the thick meat rubber support. The effect of isolating lateral vibration of the lead core laminated rubber is self-evident, the thick flesh rubber is suitable for being made into a vertical through hole, and a vertical damping structure is arranged in the vertical through hole to assist in absorbing energy. However, when the thick-fleshed rubber support is adopted, the rigidity in the horizontal direction is small, and the anti-drawing capability is insufficient.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a multi-stage vertical shock insulation energy dissipation system based on a pre-pressed spiral spring and a viscous damper, wherein the pre-pressed spiral spring has extremely high initial rigidity and can effectively support the dead weight of an upper structure, when the system is subjected to vertical earthquake action, the shock insulation device can effectively prolong the vertical period of the structure with lower secondary rigidity so as to isolate the vertical earthquake action on the structure, and meanwhile, the viscous damper matched with the pre-pressed spiral spring can provide energy dissipation capability in the vertical direction so as to control the axial deformation of a pre-pressed spring column. The vertical shock insulation energy dissipation system can be combined with the existing horizontal shock insulation device for use, the three-dimensional shock insulation effect is achieved, the vertical shock insulation energy dissipation system can also be used independently, and the vertical shock insulation effect is only achieved. The horizontal shock insulation device and the vertical shock insulation top plate can be connected by adopting the forms of bolts, welding and the like.
The multi-stage vertical shock insulation energy dissipation system comprises a vertical shock insulation top plate, a pre-pressed spring column base, a pre-pressed spring column fixing connecting piece, a viscous damper base, a viscous damper fixing connecting piece, a pre-pressed spring column, a viscous damper, a limiting shaft and a limiting shaft connecting piece; the pre-pressing spring column comprises a connecting shaft, a top plate, an upper sleeve, a spiral spring, a shear bolt, a bottom sleeve, a bottom plate and a nut.
As shown in fig. 12, a cylindrical coil spring is used as a basic element of the vertical seismic isolation apparatus, a single coil spring is preliminarily positioned with a top plate, a bottom plate, a guide rod and an upper sleeve, then, a pre-stress is applied to the coil spring combination by a connecting shaft connected to the guide rod, and the pre-stressed coil spring is embedded in a closed space by fastening a nut at the bottom of the guide rod and installing a bottom sleeve, thereby generating an extremely large initial resistance and initial stiffness, both of which can be used for static support. When the vertical load transmitted to the pre-pressing spring column does not exceed the applied pre-pressing force, the axial deformation of the pre-pressing spring column is very small, and the pre-pressing spring column has very large initial rigidity; when the vertical load transmitted to the pre-pressing spring column exceeds the pre-pressing force, the axial stiffness of the pre-pressing spring column is the characteristic stiffness of the spiral spring, and the stiffness of the pre-pressing spring column can be used as the stiffness of a shock insulation stage; when the vertical load that transmits for the pre-compaction spring post lasts the increase, pre-compaction spring post axial deformation also is bigger and bigger, and spacing axle also can be more and more close to frame post top surface. When reaching axial design displacement, spacing axle and frame post top surface contact play the spacing guard action to the pre-compaction spring post. Therefore, the vertical shock isolation device is laterally restrained by the sleeve, so that the vertical shock isolation device is approximately embodied as rigidity, and meanwhile, the pre-pressing limiting spring in the sleeve can generate axial deformation so as to play a role in bearing and shock isolation.
When an earthquake occurs, the vertical shock insulation top plate moves axially to transmit load to the prepressing spring column, then the prepressing spring column enters a working state, and the vertical load is transmitted to the prepressing spring column base by the spring column and then is transmitted to the frame column by the prepressing spring column base after the spring column is combined with the prepressing spring column base; when vertical displacement is too big, spacing axle and frame post top surface contact prevent that vertical shock insulation subassembly from producing too big deformation. When the vertical shock insulation top plate moves in the vertical direction, the viscous damper can be driven to move together, and the effect of consuming earthquake kinetic energy is achieved.
Preferably, two ends of the vertical shock insulation top plate are fixedly connected with the prepressing spring column and the viscous damper; the lower part of the central part of the vertical shock insulation top plate is assembled with a limiting shaft connecting piece, and the limiting shaft can only move in the vertical direction due to the constraint action of the limiting shaft connecting piece; the limiting shaft can limit overlarge vertical displacement of the support, and the prepressing spring column is protected from being damaged.
In any of the above schemes, preferably, the pre-pressed spring column is fixedly connected with the frame column through a sleeve fixing connecting piece and a base; the top of the central part of the frame column is fixedly connected with a limiting shaft connecting piece.
The pre-pressed spring column has multi-stage rigidity, can resist support settlement under the action of gravity and can effectively isolate the vertical earthquake action.
In any of the above schemes, preferably, the pre-pressing spring column includes a connecting shaft, a top plate, a coil spring, an upper sleeve, a bottom sleeve and a bottom plate, wherein molybdenum disulfide is used as a lubricant between the top plate and the upper sleeve and between the bottom plate and the upper sleeve.
In any of the above aspects, preferably, the upper end of the coil spring abuts against the top of the upper sleeve through a top plate; the lower end of the spiral spring is abutted against the bottom plate of the upper sleeve, and a nut is arranged below the bottom plate.
In any of the above solutions, preferably, the upper sleeve is sleeved in the bottom sleeve, and a shear bolt is arranged between the upper sleeve and the bottom sleeve.
In any of the above schemes, preferably, the pre-pressure spring column is a coil spring or a disc spring. When different types of springs are adopted, the mechanical behavior and the space volume of the pre-pressing spring column are different.
Drawings
Fig. 1 is a schematic structural diagram of a multi-stage vertical shock insulation energy dissipation system based on a pre-pressed helical spring and a viscous damper according to the invention.
FIG. 2 is a front view of the multi-stage vertical seismic isolation energy dissipation system based on the pre-stressed coil spring and the viscous damper shown in FIG. 1 used in combination with a friction pendulum seismic isolation bearing according to the present invention.
FIG. 3 is a left side view of the multi-stage vertical seismic isolation energy dissipation system based on the pre-stressed coil spring and the viscous damper shown in FIG. 1 used in combination with a friction pendulum seismic isolation bearing according to the present invention.
FIG. 4 is a top view of the multi-stage vertical seismic isolation energy dissipation system based on the pre-stressed coil spring and the viscous damper shown in FIG. 1 used in combination with a friction pendulum seismic isolation bearing according to the present invention.
Fig. 5 is a schematic structural diagram of a pre-pressed spring column in the multi-stage vertical seismic isolation energy dissipation system based on the pre-pressed coil spring and the viscous damper shown in fig. 1, wherein the spring is a cylindrical coil compression spring made of a circular section material.
Fig. 6 is a schematic view of a combination mode of a limiting shaft and a limiting shaft connecting piece in the multi-stage vertical shock insulation energy dissipation system based on the pre-pressed helical spring and the viscous damper shown in fig. 1 according to the invention.
Fig. 7 is a schematic structural diagram of a pre-pressed spring column in the multi-stage vertical seismic isolation energy dissipation system based on the pre-pressed coil spring and the viscous damper shown in fig. 1, wherein the spring is a disc spring.
Fig. 8 is a working schematic diagram of a pre-pressed spring column of the vertical shock insulation assembly in the multi-stage vertical shock insulation energy dissipation system based on the pre-pressed helical spring and the viscous damper shown in fig. 1, wherein the spring is a cylindrical helical compression spring made of a circular section material.
Fig. 9 is a schematic view of the multi-stage vertical seismic isolation energy dissipation system based on the pre-pressed coil spring and the viscous damper shown in fig. 1 and a complex friction pendulum seismic isolation support used in combination according to the invention.
Fig. 10 is a schematic view of the multi-stage vertical seismic isolation energy dissipation system based on the pre-stressed coil spring and the viscous damper shown in fig. 1 and a triple-friction pendulum seismic isolation support in combination for use according to the invention.
Fig. 11 is a schematic view of the multi-stage vertical seismic isolation and energy dissipation system based on the pre-stressed coil spring and the viscous damper shown in fig. 1 used in combination with a lead core laminated rubber bearing according to the invention.
Fig. 12 is a schematic view illustrating the installation of pre-pressing limit coil springs in the multi-stage vertical seismic isolation energy dissipation system based on pre-pressing coil springs and viscous dampers shown in fig. 1 according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The first embodiment is as follows:
as shown in fig. 1-4, the invention provides a multi-stage vertical shock-insulation energy-consumption system based on a pre-pressed helical spring and a viscous damper, and the shock-insulation energy-consumption system is combined with a horizontal shock-insulation device for use, wherein the horizontal shock-insulation device is a friction pendulum shock-insulation support. In addition, the shock insulation energy dissipation system comprises a vertical shock insulation top plate 1, a prepressing spring column base 2, a prepressing spring column fixing connecting piece 3, a viscous damper base 4, a viscous damper fixing connecting piece 5, a prepressing spring column 6, a viscous damper 7, a limiting shaft 8, a limiting shaft connecting piece 9, a frame column 1-1 and a frame beam 1-2; the shock insulation energy dissipation system can effectively solve the problem of support settlement in the construction stage, can provide target rigidity, enough bearing capacity and deformation, and achieves the purpose of reducing the earthquake effect on the structure.
In this embodiment, as shown in fig. 4, the number of the pre-compression spring columns 6 is 4, and the number of the viscous dampers 7 is 2.
The friction pendulum vibration isolation support base plate is connected with the vertical vibration isolation top plate 1 through bolts or welding and the like.
In this embodiment, the pre-pressed spring column base 2, the pre-pressed spring column fixing connector 3, the viscous damper base 4, and the viscous damper fixing connector 5 are fixedly connected to the frame column 1-1.
In the embodiment, the pre-pressing spring column 6 is fixedly connected with the frame column 1-1 through the pre-pressing spring column base 2 and the pre-pressing spring column fixed connecting piece 3; the viscous damper 7 is fixedly connected with the frame column 1-1 through the viscous damper base 4 and the viscous damper fixed connecting piece 5; the top of the central part of the frame column 1-1 is fixedly connected with a limiting shaft connecting piece 9 (shown in figure 6).
In the embodiment, the vertical shock insulation top plate 1 is positioned below the friction pendulum bottom plate; two ends of the vertical shock insulation top plate 1 are fixedly connected with a prepressing spring column 6 and a viscous damper 7; the lower part of the vertical shock insulation top plate 1 is assembled with a limiting shaft 8 and a limiting shaft connecting piece 9 (shown in figure 6), and the limiting shaft 8 can only move in the vertical direction due to the constraint action of the limiting shaft connecting piece 9; the limiting shaft 8 can limit overlarge vertical displacement of the support, and the prepressing spring column is protected from being damaged.
The prepressing spring column 6 has rigidity in different stages, wherein higher initial rigidity can be used for supporting the dead weight of an upper structure, so that the prepressing spring column only generates tiny static compression deformation, and lower shock insulation rigidity can be used for playing an effective vertical shock insulation role.
As shown in fig. 5, according to the present invention, the structural diagram of the pre-pressed spring column in the multi-stage vertical seismic isolation energy dissipation system based on the pre-pressed coil spring and the viscous damper shown in fig. 1 is shown.
In the present embodiment, the pre-pressing spring column 6 includes a connecting shaft 10, a top plate 11, an upper sleeve 12, a coil spring 13, a shear bolt 14, a bottom sleeve 15, a bottom plate 16, and a nut 17; molybdenum disulfide is used as a lubricant between the top plate 11 and the upper sleeve 12, between the bottom plate 16 and the upper sleeve 12, between the connecting shaft 10 and the top plate 11, and between the connecting shaft 10 and the bottom plate 16.
In this embodiment, the upper end of the coil spring 13 abuts against the top of the upper sleeve 12 through the top plate 11; the lower end of the coil spring 13 abuts against a bottom plate 16 of the upper sleeve 12, and a nut 17 is provided below the bottom plate 16.
In this embodiment, the upper sleeve 12 is sleeved in the lower sleeve 15, and the shear bolts 14 are arranged between the upper sleeve and the lower sleeve.
In this embodiment, the pre-pressing spring column 6 is a spiral spring, and adopts spiral springs with different geometric sizes and spring materials, and the pre-pressing spring column has different mechanical behaviors and space volumes.
Finally, referring to fig. 8, the pre-pressed spring columns of the vertical shock-insulation assembly in the multi-stage vertical shock-insulation energy dissipation system based on the pre-pressed coil springs and the viscous dampers shown in fig. 1 can bear the axial tension and compression action according to the invention.
When an earthquake occurs, the friction pendulum vibration isolation support generates horizontal relative sliding, and simultaneously drives the vertical vibration isolation top plate 1 to generate vertical movement, and due to the constraint action of the limiting shaft 8 and the limiting shaft connecting piece 9 (shown in figure 6), the vertical vibration isolation top plate 1 does not generate horizontal relative displacement relative to the top of the frame column 1-1, but does not constrain vertical relative displacement; when the vertical shock insulation top plate 1 moves in the vertical direction, the load is transmitted to the pre-pressing spring column 6 and the viscous damper 7, then the pre-pressing spring column 6 and the viscous damper 7 enter a working state, wherein the schematic diagram of the working state of the pre-pressing spring column 6 is shown in figure 8, and the pre-pressing spring column 6 is combined with the pre-pressing spring column base 2, so that the vertical load is transmitted to the frame column 1-1 by the pre-pressing spring column base 2 after the vertical load is transmitted to the pre-pressing spring column base 2 by the pre-pressing spring column 6; when the vertical displacement is too large, the limiting shaft 8 is in contact with the top surface of the frame column 1-1, and a limiting protection effect is provided for the vertical shock insulation assembly.
Example two:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the horizontal vibration isolation device is a complex friction pendulum support (see fig. 9).
Example three:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the horizontal seismic isolation device is a triple-friction pendulum seismic isolation bearing (see fig. 10).
Example four:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the horizontal seismic isolation device is a lead-laminated rubber bearing (see fig. 11).
Example five:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the number of the pre-stressed spring columns 6 and the number of the viscous dampers 7 can be determined according to the actual engineering requirements.
Example six:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the kind of spring in the pre-compression spring column is a disc spring (see fig. 7).
Example seven:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the kind of the spring in the pre-pressing spring column is a cylindrical helical compression spring made of a rectangular section material.
Example eight:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the kind of the spring in the pre-pressing spring column is a cylindrical helical compression spring made of a flat section material.
Example nine:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the kind of the spring in the pre-pressing spring column is a cylindrical helical compression spring with unequal pitch.
Example ten:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the kind of the spring in the pre-pressing spring column is a multi-strand coil spring.
Example eleven:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the spring in the pre-pressing spring column is used by combining a coil spring and a coil spring nest.
Example twelve:
a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper is different from the first embodiment in that: in this embodiment, the spring in the pre-pressing spring column is a disc spring and a coil spring which are used in combination.
The multistage vertical shock insulation and energy dissipation system based on the pre-pressing spiral spring and the viscous damper comprises any combination of the parts in the specification. For the sake of brevity and conciseness, these combinations are not described in detail herein, but after reading this description, the scope of the present invention, which is constituted by any combination of parts constituted by this description, is self-explanatory and thus not described in detail.
Claims (7)
1. The utility model provides a vertical shock insulation energy consumption system of multistage based on pre-compaction coil spring and viscous damper which characterized in that: a multi-stage vertical shock insulation energy dissipation system based on a pre-pressing spiral spring and a viscous damper comprises a vertical shock insulation top plate (1), a pre-pressing spring column base (2), a pre-pressing spring column fixing connecting piece (3), a viscous damper base (4), a viscous damper fixing connecting piece (5), a pre-pressing spring column (6), a viscous damper (7), a limiting shaft (8), a limiting shaft connecting piece (9), a frame column (1-1) and a frame beam (1-2).
2. The multi-stage vertical seismic isolation and energy dissipation system based on pre-stressed coil springs and viscous dampers as claimed in claim 1, wherein: the pre-pressing spring column base (2), the pre-pressing spring column fixing connecting piece (3), the viscous damper base (4), the viscous damper fixing connecting piece (5) and the limiting shaft connecting piece (9) are fixedly connected with the frame column (1-1); the vertical shock insulation top plate (1) is fixedly connected with the limiting shaft (8).
3. The multi-stage vertical seismic isolation and energy dissipation system based on pre-stressed coil springs and viscous dampers as claimed in claim 1, wherein: the pre-pressing spring column (6) is assembled with the pre-pressing spring column base (2) and the pre-pressing spring column fixing connecting piece (3); the viscous damper (7) is assembled with the viscous damper base (4) and the viscous damper fixing connecting piece (5); the limiting shaft (8) is assembled with the limiting shaft connecting piece (9); the vertical shock insulation top plate (1) is fixedly connected with the prepressing spring column (6); the vertical shock insulation top plate (1) is fixedly connected with the viscous damper (7).
4. The multi-stage vertical seismic isolation and energy dissipation system based on the pre-stressed coil springs and the viscous dampers as claimed in claim 1 or 3, wherein: the pre-pressing spring column (6) comprises a connecting shaft (10), a top plate (11), an upper sleeve (12), a spiral spring (13), a shear bolt (14), a bottom sleeve (15), a bottom plate (16) and a nut (17); molybdenum disulfide is used as a lubricant between the top plate (11) and the upper sleeve (12), between the bottom plate (16) and the upper sleeve (12), between the connecting shaft (10) and the top plate (11) and between the connecting shaft (10) and the bottom plate (16).
5. The multi-stage vertical seismic isolation and energy dissipation system based on pre-stressed coil springs and viscous dampers as claimed in claim 4, wherein: the upper end of the spiral spring (13) is abutted against the top of the upper sleeve (12) through the top plate (11); the lower end of the spiral spring (13) is abutted against a bottom plate (16) of the upper sleeve (12), and a nut (17) is arranged below the bottom plate (16).
6. The multi-stage vertical seismic isolation and energy dissipation system based on pre-stressed coil springs and viscous dampers as claimed in claim 5, wherein: the upper sleeve (12) is sleeved in the bottom sleeve (15), and a shear bolt (14) is arranged between the upper sleeve and the bottom sleeve.
7. The multi-stage vertical seismic isolation and energy dissipation system based on the pre-stressed coil springs and the viscous dampers as claimed in claim 1 or 3, wherein: the pre-pressing spring column (9) is a spiral spring or a disc spring.
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| CN202110333759.1A CN113236002B (en) | 2021-03-29 | 2021-03-29 | Multi-stage vertical shock insulation and energy dissipation system based on pre-pressing spiral spring and viscous damper |
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| US20150048234A1 (en) * | 2012-02-29 | 2015-02-19 | Pontificia Universidad Catolica De Chile | Vibration-Insulating Device and System |
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| CN106968499A (en) * | 2017-03-09 | 2017-07-21 | 上海大学 | A kind of level of subsidiary vertical shock-absorbing function is to negative stiffness device |
| CN108425433A (en) * | 2018-02-05 | 2018-08-21 | 同济大学 | A kind of adaptive stiffness characteristics mobile decoupling formula three-dimensional isolation/shake bearing |
| CN111549927A (en) * | 2020-05-08 | 2020-08-18 | 南通大学 | Three-dimensional composite shock insulation support |
| CN212248754U (en) * | 2019-12-30 | 2020-12-29 | 上海蓝科建筑减震科技股份有限公司 | Composite self-resetting friction damper |
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2021
- 2021-03-29 CN CN202110333759.1A patent/CN113236002B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150048234A1 (en) * | 2012-02-29 | 2015-02-19 | Pontificia Universidad Catolica De Chile | Vibration-Insulating Device and System |
| CN106285150A (en) * | 2016-10-17 | 2017-01-04 | 安徽信泽科技有限公司 | A kind of energy presets the three-dimensional isolation device of vertical rigidity in early days |
| CN106499079A (en) * | 2016-10-17 | 2017-03-15 | 安徽信泽科技有限公司 | A kind of three-dimensional isolation device of adjustable vertical to early stage rigidity |
| CN106968499A (en) * | 2017-03-09 | 2017-07-21 | 上海大学 | A kind of level of subsidiary vertical shock-absorbing function is to negative stiffness device |
| CN108425433A (en) * | 2018-02-05 | 2018-08-21 | 同济大学 | A kind of adaptive stiffness characteristics mobile decoupling formula three-dimensional isolation/shake bearing |
| CN212248754U (en) * | 2019-12-30 | 2020-12-29 | 上海蓝科建筑减震科技股份有限公司 | Composite self-resetting friction damper |
| CN111549927A (en) * | 2020-05-08 | 2020-08-18 | 南通大学 | Three-dimensional composite shock insulation support |
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