CN106930589B - Three-way shock insulation device with vertical large displacement shock insulation - Google Patents
Three-way shock insulation device with vertical large displacement shock insulation Download PDFInfo
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- CN106930589B CN106930589B CN201610811172.6A CN201610811172A CN106930589B CN 106930589 B CN106930589 B CN 106930589B CN 201610811172 A CN201610811172 A CN 201610811172A CN 106930589 B CN106930589 B CN 106930589B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention relates to a three-dimensional vibration isolation device with a vertical large-displacement vibration isolation function, which comprises a horizontal vibration isolation device and a vertical vibration isolation device, wherein the horizontal vibration isolation device is fixed on the ground, and two ends of the vertical vibration isolation device are respectively connected with the horizontal vibration isolation device and a top plate for placing objects. The invention provides the capability of enabling the shock insulation support to have vertical large displacement deformation through the deformation amplification effect of the mechanism structure, so as to meet the requirement of avoiding the vertical earthquake period to the greatest extent in sequence of large deformation and low rigidity required by vertical shock insulation; in addition, the structural form of the mechanism enables the vertical shock insulation layer to only generate the capacity of vertical deformation, so that the problems of collision and the like caused by other constraint modes are avoided, and the precision is greatly improved. The invention solves the problem of horizontal shock isolation and has good shock isolation performance on vertical earthquake sensitive structures, equipment and cultural relics.
Description
Technical Field
The invention relates to a structure, equipment and a collection cultural relic, in particular to a three-way shock insulation device with a vertical large-displacement shock insulation function.
Background
The space between the two main seismic zones at China, the European and Pacific seismic zones, is one of the most serious countries in the world suffering from earthquake hazards. Historically, strong earthquakes of more than 6 levels have occurred many times in Yangtze river delta and Zhujiang delta, and in the Jinjin ring Bohai sea region, more than 7 levels of major earthquakes have occurred on average every 44 years in nearly 300 years. Along with the acceleration of the urban process, a great number of national wealths are rapidly concentrated to cities and urban cluster areas. And more than one third of established or planned urban clusters in China are located in areas where more than 7 grades of major earthquakes may occur. The space grid structure is used as a marked building of a city and an area, a material collecting place after earthquake and a disaster refuge place, and economic loss and casualties caused by the damage of the space grid structure can cause great impact on national safety and social stability. The earthquake is that the stratum is in a complex stress state, when the earth stress exceeds the limit strength of the stratum at a certain place along with the continuous change of the earth crust, the stratum is suddenly broken and dislocated, so that vibration is caused, the vibration is transmitted to the ground surface in the form of elastic waves, an object with certain mass near the ground surface is caused to generate inertia force, and when the earthquake resistance of the object against the inertia effect is insufficient, the object is damaged. The damage to the object is more serious when the excellent period of the local vibration is relatively close to the self-vibration period of the object. The self-vibration period of the object can be obviously changed by arranging a certain vibration isolation device on the object, so that the excellent period of the earthquake is avoided, the inertia force acting on the object is obviously reduced, the damage of the object under the action of the earthquake is reduced, and the safety of the object under the earthquake is improved.
Conventional seismic isolation and reduction techniques are generally divided into two main categories: the self-vibration period of the structure is prolonged through the arrangement of the vibration isolation device, and the earthquake response of the upper structure is reduced; the other type is that energy input of the earthquake to the structure is consumed by arranging an energy consumption device at the joint of the structure and the foundation, so that the earthquake energy input into the structure is reduced, and the damage of the earthquake effect is reduced. At present, the two seismic reduction and isolation technologies are well applied, but the two technologies aim at reducing the horizontal seismic action, so that the two technologies are only applicable to structures insensitive to the vertical direction or structures which do not need to perform vertical seismic isolation, and the technologies can only meet the requirement of horizontal seismic isolation and have larger defects and hidden dangers. However, the investigation and analysis after the past earthquake show that the influence and the harm of the vertical earthquake to the structure are not neglected, in certain cases, the vertical earthquake effect even plays a role in control, and the traditional earthquake reduction and isolation technology generally aims at the horizontal direction to reduce and isolate the earthquake, so that the requirement of the vertical earthquake is not met, even under certain conditions, the earthquake isolation technology is small, the earthquake isolation technology can also amplify the vertical earthquake, and huge threat and hidden danger are brought to the safety of the structure under the earthquake.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a three-way shock insulation device with a vertical large displacement shock insulation function. The method is realized by the following technical scheme:
the utility model provides a three-dimensional shock insulation device with vertical large displacement shock insulation, its includes horizontal shock insulation device and vertical shock insulation device, wherein, horizontal shock insulation device includes at least three loading board and is located the horizontal shock insulation spring device between the loading board, horizontal shock insulation spring device includes two risers, is located and rather than fixed spring guide arm who connects between these two risers, passes spring assembly and the dolly of this spring guide arm, the riser is fixed with the loading board of below, the dolly is fixed with the loading board of its top and its wheel contacts with the loading board of below, and the both ends of spring assembly are connected with riser and dolly respectively, and the symmetry sets up in the both sides of dolly, in addition, the direction of the wheel of dolly is unanimous with spring assembly's elasticity direction; the vertical shock insulation device comprises a plurality of vertical shock insulation spring devices, each vertical shock insulation spring device comprises two groups of hinged spring assemblies and two groups of hinged auxiliary supports, the hinged positions of the spring assemblies and the auxiliary supports are connected together through connecting rods, the top ends of the spring assemblies and the auxiliary supports are hinged, the hinged points of the spring assemblies and the auxiliary supports are hinged to a top plate for placing objects, the bottom ends of the spring assemblies and the auxiliary supports are hinged, and the hinged points of the spring assemblies and the auxiliary supports are hinged to a top bearing plate of the horizontal shock insulation device.
Preferably, a plurality of horizontal shock insulation spring devices are arranged between the bearing plates of the horizontal shock insulation device.
Preferably, the horizontal shock insulation device consists of two layers, namely three layers of bearing plates and horizontal shock insulation spring devices positioned between two adjacent layers.
Preferably, the horizontal shock insulation spring devices on the two layers are arranged in an orthogonal mode.
Preferably, the horizontal shock insulation spring devices on the bearing plate of the horizontal shock insulation device are symmetrically arranged.
Preferably, 4 horizontal shock insulation spring devices are symmetrically arranged on each layer of bearing plate.
Preferably, each group of spring assemblies of the vertical shock insulation spring device is identical, and each group of auxiliary supports is identical.
Preferably, the plurality of vertical shock insulation spring devices are symmetrically arranged. More preferably, 4 groups of vertical shock insulation spring devices are symmetrically arranged, each group comprises two vertical shock insulation spring devices, and the two vertical shock insulation spring devices are vertical in the horizontal direction.
Compared with the prior art, the invention adopting the technical scheme has the advantages that: the invention greatly increases the vertical deformation capacity of the vibration isolation device, and reduces the vertical earthquake action to the maximum extent while realizing horizontal vibration isolation for structures or equipment sensitive to the vertical earthquake and the cultural relics collected in the collection.
Drawings
FIG. 1 is an overall isometric view of the present invention;
FIG. 2 is an overall elevation view of the present invention;
FIG. 3 is a top view of a horizontal seismic isolation apparatus;
FIG. 4 is a front view of a vertical seismic isolation apparatus;
fig. 5 is a view of an orthogonal arrangement of vertical seismic isolation apparatus.
The figure indicates: 1-a bottom carrier plate; 2-a middle bearing plate; 3-top carrier plate; 4-vertical plates; 5-spring assemblies of the horizontal shock isolation device; 6-a spring guide rod; 7-a trolley; 8-externally connecting a vertical shock insulation device with a hinge; 9-spring assemblies of the vertical shock insulation device; 10-auxiliary support; the 11-pair support is hinged with the spring assembly; 12-a connecting rod of the secondary support and spring assembly; 13-roof.
Description of the embodiments
The following description is provided in further detail with reference to the accompanying drawings and specific embodiments, wherein the three-dimensional vibration isolation mechanical device has a vertical large displacement vibration isolation function.
As shown in fig. 1 to 5, the three-way vibration isolation device with vertical large displacement vibration isolation according to an embodiment includes a horizontal vibration isolation device at the bottom and a vertical large displacement vibration isolation device at the upper part (vertical vibration isolation device for short).
In the illustrated embodiment, the bottom horizontal shock isolation device comprises three layers of bearing plates (1, 2, 3) and horizontal shock isolation spring devices positioned between the bearing plates. Specifically, horizontal shock insulation spring devices are arranged on the bottom bearing plate 1 and the middle bearing plate 2, 4 horizontal shock insulation spring devices are symmetrically arranged on each layer, and meanwhile, the horizontal shock insulation spring devices on the two layers are orthogonally arranged.
The horizontal shock insulation spring device comprises a vertical plate 4, a spring assembly 5, a spring guide rod 6 and a trolley 7, wherein the trolley 7 is fixed with a bearing plate above the vertical plate, and wheels of the trolley 7 are in contact with a bearing plate below the vertical plate to provide vertical bearing capacity for the bearing plate above; the two vertical plates 4 are fixed on the bearing plate below the vertical plates, the spring guide rods 6 are positioned between the two vertical plates 4 and are arranged on the vertical plates 4, the spring assemblies 5 of the horizontal shock insulation devices and the trolley 7 penetrate through the spring guide rods 6, and the spring assemblies 5 of the horizontal shock insulation devices are symmetrically arranged at two ends of the trolley. The two ends of the spring assembly 5 are respectively connected with the vertical plate 4 and the trolley 7, and the direction of the wheels of the trolley 7 is consistent with the elastic direction of the spring assembly, and the spring assembly 5 of the horizontal shock insulation device has horizontal shock insulation capacity along the axial direction of the spring. Because two layers of horizontal shock insulation spring devices are orthogonally arranged, the device has independent shock insulation capacity in two horizontal directions. The upper vertical vibration isolation device is connected to the top bearing plate 3 of the horizontal vibration isolation device; the vertical shock insulation device comprises a vertical shock insulation spring device, wherein the vertical shock insulation spring device comprises two groups of hinged spring assemblies 9 and two groups of hinged auxiliary supports 10, the respective hinged positions of the two groups of hinged auxiliary supports are connected together by a connecting rod 12, and a connecting hinge 11 between the auxiliary supports and the spring assemblies in the figure is formed at the hinged positions; and the two ends of the hinged spring assembly 9 and the auxiliary support 10 are respectively hinged with a top plate 13 for placing objects and a top bearing plate 3 of the horizontal shock insulation device, and the hinged position forms an external hinge 8 of the vertical shock insulation device in the figure.
The structural form of the upper vertical vibration isolation device enables the two ends of the vertical vibration isolation device to deform greatly when the 2 spring assemblies 9 deform slightly symmetrically.
The spring assembly 9 of the vertical seismic isolation apparatus is a conventional spring sleeve having tension and compression and energy dissipation capabilities.
The upper vertical large-displacement shock insulation device comprises 4 groups of vertical shock insulation spring devices which are symmetrically arranged, each group comprises two vertical shock insulation spring devices, and the two vertical shock insulation spring devices are orthogonally arranged, as shown in fig. 5. Because the auxiliary supports 10 of the vertical shock-insulation spring devices can limit the movement and torsion in the plane, after the auxiliary supports 10 of each group of vertical shock-insulation spring devices are arranged in a mutually orthogonal manner, the vertical shock-insulation device at the upper part can only move vertically, and the horizontal movement and torsion do not occur.
The structure, equipment and the cultural relics which need to meet the large deformation effect in the vibration isolation process can be directly and fixedly connected with the top plate 13, the vertical load such as dead weight and the like can enable the vertical vibration isolation device to generate vertical deformation in a non-seismic state, and the vertical seismic effect enables the vibration isolation device to reciprocate at a balance position; the horizontal spring generates expansion deformation under the action of horizontal earthquake; the vertical vibration isolation device and the horizontal vibration isolation device work independently, and the vertical vibration isolation device and the horizontal vibration isolation device do not produce coupling effect. The characteristics of large deformation and small rigidity of the vertical vibration isolation device greatly prolong the vertical self-vibration period of the structure, the equipment and the cultural relics in the collection, so that the vertical self-vibration period of the structure, the equipment and the cultural relics in the collection is far away from the excellent period of the earthquake, and the vertical earthquake effect is greatly reduced; the pressure that the amplitude that horizontal to the earthquake vibrations produced constantly changes weakens through horizontal spring's reciprocal vibration to horizontal spring has changed the horizontal to self-oscillation cycle of structure and equipment and collection of cultural relics, makes the horizontal to self-oscillation cycle of structure and equipment and collection of cultural relics keep away from the excellent cycle of earthquake vibrations, thereby reduces the horizontal to seismic action.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. A three-way vibration isolation device with vertical large displacement vibration isolation is characterized by comprising a horizontal vibration isolation device and a vertical vibration isolation device,
the horizontal shock insulation device comprises at least three bearing plates and horizontal shock insulation spring devices positioned among the bearing plates, wherein each horizontal shock insulation spring device comprises two vertical plates, a spring guide rod positioned between the two vertical plates and fixedly connected with the two vertical plates, a spring assembly penetrating through the spring guide rod and a trolley, the vertical plates are fixed with the bearing plates below the vertical plates, the trolley is fixed with the bearing plates above the vertical plates and the wheels of the trolley are contacted with the bearing plates below the trolley, the two ends of the spring assembly are respectively connected with the vertical plates and the trolley and are symmetrically arranged at the two sides of the trolley, and in addition, the directions of the wheels of the trolley are consistent with the directions of the elastic forces of the spring assembly;
the vertical shock insulation device comprises a plurality of vertical shock insulation spring devices, each vertical shock insulation spring device comprises two groups of hinged spring assemblies and two groups of hinged auxiliary supports, the hinged positions of the spring assemblies and the auxiliary supports are connected together through connecting rods, the top ends of the spring assemblies and the auxiliary supports are hinged, the hinged points of the spring assemblies and the top plates for placing objects are hinged, the bottom ends of the spring assemblies and the auxiliary supports are hinged, and the hinged points of the spring assemblies and the bottom ends of the auxiliary supports are hinged to top bearing plates of the horizontal shock insulation device.
2. The three-way vibration isolation device with vertical large displacement vibration isolation according to claim 1, wherein a plurality of horizontal vibration isolation spring devices are arranged between the bearing plates of the horizontal vibration isolation device.
3. The three-way vibration isolation device with vertical large displacement vibration isolation according to claim 1 or 2, wherein the horizontal vibration isolation device consists of two layers, namely three layers of bearing plates and horizontal vibration isolation spring devices positioned between two adjacent layers.
4. A three-way seismic isolation apparatus having a vertically large displacement seismic isolation according to claim 3, wherein the horizontal seismic isolation spring arrangements on the two layers are arranged orthogonally.
5. The three-way vibration isolation device with vertical large displacement vibration isolation according to claim 4, wherein the horizontal vibration isolation spring devices on the bearing plate of the horizontal vibration isolation device are symmetrically arranged.
6. The three-way vibration isolation device with vertical large displacement vibration isolation according to claim 4, wherein 4 horizontal vibration isolation spring devices are symmetrically arranged on each layer.
7. The three-way seismic isolation apparatus with vertical large displacement seismic isolation according to claim 1, wherein each set of spring assemblies of the vertical seismic isolation spring apparatus is identical and each set of secondary supports is identical.
8. The three-way seismic isolation apparatus having vertical large displacement seismic isolation according to claim 7, wherein the plurality of vertical seismic isolation spring devices are symmetrically arranged.
9. The three-way vibration isolation device with vertical large displacement vibration isolation according to claim 7, wherein 4 groups of vertical vibration isolation spring devices are symmetrically arranged, each group comprises two vertical vibration isolation spring devices, and the two vertical vibration isolation spring devices are vertical in the horizontal direction.
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| CN201610811172.6A CN106930589B (en) | 2016-09-08 | 2016-09-08 | Three-way shock insulation device with vertical large displacement shock insulation |
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| CN201610811172.6A CN106930589B (en) | 2016-09-08 | 2016-09-08 | Three-way shock insulation device with vertical large displacement shock insulation |
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| CN107687282B (en) * | 2017-09-04 | 2019-06-07 | 北京工业大学 | A kind of assembling type steel structure Self-resetting energy dissipation brace device |
| CN109518816A (en) * | 2018-11-21 | 2019-03-26 | 大连大学 | The shock isolation method of comprehensive shock isolating pedestal |
| CN110670726B (en) * | 2019-09-25 | 2020-10-02 | 融兴建设集团有限公司 | Steel structure earthquake-resistant structure for building |
| CN111288117B (en) * | 2020-02-12 | 2020-09-22 | 中国地震局工程力学研究所 | A three-dimensional shock insulation showcase of pendulum-type for floating object antidetonation protection |
| CN113622729A (en) * | 2021-08-09 | 2021-11-09 | 东南大学 | Three-dimensional shock insulation energy consumption device |
| CN113883215B (en) * | 2021-08-24 | 2023-01-31 | 故宫博物院 | Combined three-dimensional shock isolation device suitable for floating object protection |
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| JPH11125028A (en) * | 1997-10-22 | 1999-05-11 | Tatsuji Ishimaru | Damper |
| CN102401080A (en) * | 2011-11-17 | 2012-04-04 | 故宫博物院 | Three-dimensional antique vibration isolation device with limit protection system |
| CN104315079A (en) * | 2014-09-18 | 2015-01-28 | 中国地震局工程力学研究所 | Three-way shock insulation pedestal with spring damp guide rod device |
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