CN113216432A - Combined three-dimensional shock insulation layer - Google Patents
Combined three-dimensional shock insulation layer Download PDFInfo
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- CN113216432A CN113216432A CN202110411131.9A CN202110411131A CN113216432A CN 113216432 A CN113216432 A CN 113216432A CN 202110411131 A CN202110411131 A CN 202110411131A CN 113216432 A CN113216432 A CN 113216432A
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- China
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- connecting plate
- sleeve
- seat plate
- seismic isolation
- upper connecting
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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
- 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
- E04B1/36—Bearings or like supports allowing movement
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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 utility model provides a modular three-dimensional shock insulation layer, includes pre-compaction spring support, and it includes: an upper connecting plate; the upper sleeve is positioned below the upper connecting plate and connected with the lower surface of the upper connecting plate; the lower connecting plate is arranged at an interval with the upper connecting plate and is positioned below the upper connecting plate; the lower sleeve is positioned above the lower connecting plate and connected with the upper surface of the lower connecting plate, the lower end of the upper sleeve is sleeved in the lower sleeve by the upper end of the lower sleeve, and the upper sleeve and the lower sleeve are concentrically arranged, so that an accommodating cavity is formed by the upper sleeve and the lower sleeve; the spiral spring is accommodated in the accommodating cavity, and two opposite ends of the spiral spring are respectively fixed on the upper connecting plate and the lower connecting plate; the anchorage device is positioned above the upper connecting plate; and the top end of the prestressed steel strand is locked and anchored by an anchorage device after the prestress applied to the spiral spring reaches a set value after the top end of the prestressed steel strand penetrates through the upper connecting plate.
Description
Technical Field
The application belongs to the technical field of seismic isolation and reduction of building structures, and particularly relates to a combined three-dimensional seismic isolation layer.
Background
The seismic isolation technology is a prominent research result in the field of structural seismic resistance for 50 years and is widely applied in China. The shock insulation measures can enable the upper structure to be in an elastic or weak nonlinear state under the action of large shock, and the seismic response of the upper structure is reduced. However, in the vertical seismic isolation design of a building structure, a contradiction between stable vertical bearing capacity and good seismic isolation effect always exists. To current vertical shock insulation structure, the majority can't reach effectual vertical shock insulation cycle, obtains good shock insulation effect, or because vertical dead load is great, can't satisfy the requirement of displacement under quiet power and the earthquake effect. Therefore, how to obtain a seismic isolation layer with good performances is a technical problem to be solved urgently.
Content of application
In view of the above, an object of the present invention is to provide a combined three-dimensional seismic isolation layer with good performance.
The application provides a modular three-dimensional shock insulation layer, including the pre-compaction spring support that has vertical shock insulation effect, its characterized in that: the pre-pressing spring support comprises:
an upper connecting plate;
the upper sleeve is positioned below the upper connecting plate and connected with the lower surface of the upper connecting plate;
the lower connecting plate is arranged at an interval with the upper connecting plate and is positioned below the upper connecting plate;
the lower sleeve is positioned above the lower connecting plate and is connected with the upper surface of the lower connecting plate facing the upper connecting plate, the lower end of the upper sleeve is sleeved in the lower sleeve by the upper end of the lower sleeve, and the upper sleeve and the lower sleeve are concentrically arranged, so that an accommodating cavity is formed by the upper sleeve and the lower sleeve;
the spiral spring is accommodated in the accommodating cavity, and two opposite ends of the spiral spring are respectively fixed on the upper connecting plate and the lower connecting plate;
the anchorage device is positioned above the upper connecting plate;
and the prestressed steel strand penetrates through the upper sleeve and the upper connecting plate from the lower sleeve, the bottom end of the prestressed steel strand is fixed on the lower connecting plate, and after the top end of the prestressed steel strand penetrates through the upper connecting plate and the prestress applied to the spiral spring reaches a set value, the top end of the prestressed steel strand is fixedly connected with the anchorage device.
In some embodiments, the prestressed steel strand is located at the vertical center of the accommodating cavity, passes through the coil spring and is arranged at a distance from the coil spring.
In some embodiments, the device further comprises a monitoring device arranged on the upper sleeve, and the monitoring device is used for monitoring the degree of compression of the helical spring during the preloading process and the descending degree of the upper sleeve relative to the lower sleeve.
In some embodiments, the rubber gasket is adhered to the inner side of the top of the lower sleeve to reduce collision and sliding with the upper sleeve.
In some embodiments, the middle portion of the upper connecting plate protrudes toward the lower connecting plate to form an upper fixing portion, and the top end of the coil spring is sleeved on the periphery of the upper fixing portion and abuts against the upper connecting plate.
Furthermore, the middle part of the lower connecting plate protrudes towards the upper connecting plate to form a lower fixing part, and the bottom end of the spiral spring is sleeved on the periphery of the lower fixing part and abuts against the lower connecting plate.
In some embodiments, further comprising a sliding friction pendulum comprising:
the lower connecting plate is fixed on the upper seat plate;
the lower seat plate is positioned below the upper seat plate and is arranged at an interval with the upper seat plate;
the spherical crown body is positioned between the upper seat plate and the lower seat plate, and the opposite top surface and bottom surface respectively support against the upper seat plate and the lower seat plate and can slide relative to the upper seat plate and the lower seat plate.
In some embodiments, the top surface and the bottom surface of the spherical crown body are both arc surfaces, and the lower surface and the upper surface of the upper seat plate and the lower seat plate connected with the spherical pipe body are both adaptive arc surfaces.
Furthermore, the top surface and the bottom surface of the spherical crown body are respectively provided with a wear-resisting plate.
In some embodiments, a limiting ring is disposed at an edge of an upper surface of the lower seat plate and a limiting ring is disposed at an edge of a lower surface of the upper seat plate to limit horizontal displacement of the spherical cap body.
In the application, the requirement of the combined three-dimensional shock insulation layer on vertical allowable deformation is met based on the design of the pre-pressed spiral spring, the upper sleeve and the lower sleeve; the displacement of the pre-pressing spring support from the mounting height to the static balance position can be effectively reduced by pre-pressing the spiral spring before mounting, and the fact that the whole device has enough vertical bearing capacity in the vertical direction can be guaranteed; by designing related parameters of the spiral spring, the vertical rigidity and frequency of the prepressing spring support can be adjusted, and a good shock insulation effect is achieved; the cooperation of the spiral spring with the upper sleeve and the lower sleeve can prevent the spiral spring from being subjected to the horizontal vibration transmitted from the bottom to the upper part.
Drawings
Fig. 1 is a schematic cross-sectional view of a three-dimensional seismic isolation layer according to an embodiment of the present disclosure.
Fig. 2 is a plan view of the assembled three-dimensional seismic isolation layer shown in fig. 1.
Fig. 3 is a schematic perspective view of the combined three-dimensional seismic isolation layer pre-stressed spring support shown in fig. 1.
Fig. 4 is a schematic perspective view of the combined three-dimensional seismic isolation layer sliding friction pendulum support shown in fig. 1.
Fig. 5 is a perspective view of the spherical cap body of the sliding friction pendulum support shown in fig. 4.
Detailed Description
The present application will be described in detail with reference to the drawings and specific embodiments, so that the technical solutions and advantages thereof will be more clearly understood. It is to be understood that the drawings are provided solely for purposes of illustration and not limitation, and that the dimensions shown in the drawings are for clarity of description and are not to be taken as limiting the scale.
Referring to fig. 1 to 3, a combined three-dimensional seismic isolation layer according to an embodiment of the present application includes a pre-pressed spring support having a vertical seismic isolation function, where the pre-pressed spring support includes:
an upper connecting plate 2;
the upper sleeve 3 is positioned below the upper connecting plate 2 and connected with the lower surface of the upper connecting plate 2;
the lower connecting plate 9 is arranged at an interval with the upper connecting plate 2 and is positioned below the upper connecting plate 2;
the lower sleeve 7 is positioned above the lower connecting plate 9 and is connected with the upper surface of the lower connecting plate 9 facing the upper connecting plate 2, the lower end of the upper sleeve 3 is sleeved in the upper sleeve 7 at the upper end of the lower sleeve 7 and is concentrically arranged with the upper sleeve 3, and therefore the upper sleeve 3 and the lower sleeve 7 form a containing cavity 20 together;
the spiral spring 6 is accommodated in the accommodating cavity 20, and two opposite ends of the spiral spring are respectively fixed on the upper connecting plate 2 and the lower connecting plate 9;
the anchorage device 1 is positioned above the upper connecting plate 2;
and the prestressed steel strand 5 penetrates through the upper sleeve 3 and the upper connecting plate 2 from the lower sleeve 7, the bottom end of the prestressed steel strand 5 is fixed on the lower connecting plate 9, and after the top end of the prestressed steel strand 5 penetrates through the upper connecting plate 2 and the prestress applied to the spiral spring 6 reaches a set value, the top end of the prestressed steel strand 5 is locked and anchored by the anchorage device 1.
The prestress steel strand 5 is located the vertical center of accepting chamber 20, pass coil spring 6 and with coil spring 6 interval sets up.
The prepressing spring support also comprises a monitoring device 21 arranged on the upper sleeve 3, and the monitoring device 21 is used for monitoring the degree of compression in the prepressing process of the spiral spring 6 and the descending degree of the upper sleeve 3 relative to the lower sleeve 7.
The pre-pressing spring support further comprises a rubber gasket 4, and the rubber gasket 4 is adhered to the inner side of the top of the lower sleeve 7 so as to reduce collision and sliding with the upper sleeve 3.
The middle part of the upper connecting plate 2 protrudes towards the lower connecting plate 9 to form an upper fixing part 22, and the top end of the spiral spring 6 is sleeved on the periphery of the upper fixing part 22 and abuts against the upper connecting plate 2.
The middle part of the lower connecting plate 9 extends towards the upper connecting plate 2 to form a lower fixing part 23, and the bottom end of the spiral spring 6 is sleeved on the periphery of the lower fixing part 23 and abuts against the lower connecting plate 9.
The pre-pressing spring support is used for being connected with an upper structure and used for isolating the vibration in the vertical direction. The top of prestressing force steel strand wires 5 is before fixed, connects tensioning equipment usually, treats that tensioning equipment presses 2 pairs of 6 pre-compaction of helical spring of upper junction plate to set for the degree just go up sleeve 3 and down to setting for the position for lower sleeve 7, monitoring device 21 gives out the instruction, tensioning equipment stops exerting pressure, cuts prestressing force steel strand wires 5 uses 1 locking anchor of ground tackle. So, pre-stressed spring support is under normal use state, and prestressing steel strand wires 5 are in the relaxed state, and when producing upward displacement, prestressing steel strand wires 5 can restrict pre-stressed spring support and produce the excessive displacement. Therefore, the prepressing spring support has stable vertical bearing capacity, and relatively small vertical displacement can be generated when vertical static load is added, so that the upper construction is facilitated; the upper sleeve 3 and the lower sleeve 7 on the outside prevent the spiral spring 6 from bending in the horizontal direction, keep the stability of the prepressing spring support, make the vertical direction of the prepressing spring support be linear rigidity, and the shock insulation period is clear.
In the application, the requirement of the combined three-dimensional shock insulation layer on vertical allowable deformation is met based on the design of the pre-pressed spiral spring 6, the upper sleeve 3 and the lower sleeve 7; the displacement of the pre-pressing spring support from the mounting height to the static balance position can be effectively reduced by pre-pressing the spiral spring 6 before mounting, and the fact that the whole device has enough vertical bearing capacity in the vertical direction can be guaranteed; by designing relevant parameters of the spiral spring 6, the vertical rigidity and frequency of the prepressing spring support can be adjusted, and a good shock insulation effect is achieved; the cooperation of the coil spring 6 with the upper sleeve 3 and the lower sleeve 7 prevents the coil spring 6 from being subjected to horizontal vibrations transmitted from the bottom to the upper part.
Referring to fig. 4 and 5, the combined three-dimensional seismic isolation layer further includes a sliding friction pendulum connected to the base, including:
the upper seat plate 10, the lower connecting plate 9 is fixed on the upper surface of the upper seat plate 10;
the lower seat plate 13 is connected with the foundation, and the lower seat plate 13 is positioned below the upper seat plate 10 and is arranged at an interval with the upper seat plate 10;
and the spherical crown body 11 is positioned between the upper seat plate 10 and the lower seat plate 13, and the opposite top surface and bottom surface respectively abut against the upper seat plate 10 and the lower seat plate 13 and can slide relative to the upper seat plate 10 and the lower seat plate 13.
The lower connecting plate 9 is fixedly connected with the upper seat plate 10 through a connecting bolt 8.
The top surface and the bottom surface of the spherical crown body 11 are both arc surfaces, and the lower surface and the upper surface of the upper seat plate 10, the lower seat plate 13 and the spherical crown body 11 are both adaptive arc surfaces. The top surface and the bottom surface of the spherical crown body 11 are both convex arc surfaces, and the corresponding lower surfaces and upper surfaces of the upper seat plate 10 and the lower seat plate 13 which are matched with the spherical crown body are concave arc surfaces. The top surface and the bottom surface of the spherical crown body 11 have the same radian as the corresponding arc surfaces of the upper seat plate 10 and the lower seat plate 13, and the centers of the arc surfaces are overlapped.
The top surface and the bottom surface of the spherical crown body 11 are respectively provided with a wear-resisting plate 12. The surface of the wear plate 12 is coated with low friction materials such as teflon to reduce sliding resistance.
And a limiting ring 14 is arranged at the edge of the upper surface of the lower seat plate 13 to limit the horizontal displacement of the spherical crown body 11.
The limiting ring 14 protrudes from the upper surface edge of the lower seat plate 13 toward the upper seat plate 10, and may be a continuous circular ring or may be composed of a plurality of spaced arc-shaped pieces, as long as it can limit the horizontal displacement of the spherical crown body 11.
Furthermore, the edge of the lower surface of the upper base is also provided with a limit ring 14 for further limiting the horizontal displacement of the spherical crown body 11. a is
It will be appreciated that the number of said spherical cap bodies 11 can be set according to the needs. In this embodiment, the number of the spherical cap bodies 11 is four. The upper seat plate 10 and the lower seat plate 13 are respectively provided with an arc surface matched with each spherical crown body 11.
In the application, the problem that the allowable deformation of the combined three-dimensional shock insulation layer is difficult to meet the requirement of ultra-large shock is solved based on the design of the sliding friction pendulum; by designing parameters of each arc surface, the rigidity of the combined three-dimensional shock insulation layer and the natural vibration frequency of the structure can be adjusted to be far less than the natural vibration frequency of the traditional shock insulation structure; the earthquake action is obviously reduced, and the high-rise seismic isolation structure is beneficial to resisting overturning; the arc surface has a small friction coefficient, can effectively isolate the horizontal vibration of the bottom, and the upper part of the combined three-dimensional shock insulation layer always keeps translation in the process of dislocation under the earthquake.
The above description is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-listed embodiments, and any simple changes or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present disclosure fall within the protection scope of the present application.
Claims (10)
1. The utility model provides a modular three-dimensional shock insulation layer, includes the pre-compaction spring support that has vertical shock insulation effect, its characterized in that: the pre-pressing spring support comprises:
an upper connecting plate;
the upper sleeve is positioned below the upper connecting plate and connected with the lower surface of the upper connecting plate;
the lower connecting plate is arranged at an interval with the upper connecting plate and is positioned below the upper connecting plate;
the lower sleeve is positioned above the lower connecting plate and is connected with the upper surface of the lower connecting plate facing the upper connecting plate, the lower end of the upper sleeve is sleeved in the lower sleeve by the upper end of the lower sleeve, and the upper sleeve and the lower sleeve are concentrically arranged, so that an accommodating cavity is formed by the upper sleeve and the lower sleeve;
the spiral spring is accommodated in the accommodating cavity, and two opposite ends of the spiral spring are respectively fixed on the upper connecting plate and the lower connecting plate;
the anchorage device is positioned above the upper connecting plate;
and the prestressed steel strand penetrates through the upper sleeve and the upper connecting plate from the lower sleeve, the bottom end of the prestressed steel strand is fixed on the lower connecting plate, and after the top end of the prestressed steel strand penetrates through the upper connecting plate and the prestress applied to the spiral spring reaches a set value, the top end of the prestressed steel strand is locked and anchored by the anchorage device.
2. The combined three-dimensional seismic isolation layer according to claim 1, wherein the prestressed steel strand is located at the vertical center of the accommodating cavity, passes through the coil spring and is arranged at an interval with the coil spring.
3. The three-dimensional seismic isolation layer as claimed in claim 1, further comprising a monitoring device disposed on the upper sleeve, wherein the monitoring device is configured to monitor the degree of compression during the pre-pressing process of the coil spring and the degree of downward movement of the upper sleeve relative to the lower sleeve.
4. The three-dimensional seismic isolation layer as claimed in claim 1, further comprising a rubber gasket adhered to the inside of the top of the lower sleeve to reduce collision and sliding with the upper sleeve.
5. The assembled three-dimensional seismic isolation layer as claimed in claim 1, wherein an upper fixing portion protrudes from the middle of the upper connecting plate toward the lower connecting plate, and the top end of the coil spring is sleeved on the periphery of the upper fixing portion and abuts against the upper connecting plate.
6. The assembled three-dimensional seismic isolation layer as claimed in claim 5, wherein a lower fixing portion protrudes from the middle of the lower connecting plate toward the upper connecting plate, and the bottom end of the coil spring is sleeved on the periphery of the lower fixing portion and abuts against the lower connecting plate.
7. The modular three-dimensional seismic isolation layer of claim 1, further comprising a sliding friction pendulum comprising:
the lower connecting plate is fixed on the upper seat plate;
the lower seat plate is positioned below the upper seat plate and is arranged at an interval with the upper seat plate;
the spherical crown body is positioned between the upper seat plate and the lower seat plate, and the opposite top surface and bottom surface respectively support against the upper seat plate and the lower seat plate and can slide relative to the upper seat plate and the lower seat plate.
8. The combined three-dimensional seismic isolation layer as claimed in claim 1, wherein the top and bottom surfaces of the spherical crown body are both arc surfaces, and the lower and upper surfaces of the upper and lower seat plates, which are in contact with the spherical crown body, are both adaptive arc surfaces.
9. The modular three-dimensional seismic isolation layer as claimed in claim 7, wherein the top and bottom surfaces of the spherical cap body are respectively provided with wear-resistant plates.
10. The three-dimensional seismic isolation layer as claimed in claim 7, wherein a limiting ring is provided at the edge of the upper surface of the lower seat plate and at the edge of the lower surface of the upper seat plate for limiting the horizontal displacement of the spherical cap body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110411131.9A CN113216432B (en) | 2021-04-16 | 2021-04-16 | Combined three-dimensional shock insulation layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110411131.9A CN113216432B (en) | 2021-04-16 | 2021-04-16 | Combined three-dimensional shock insulation layer |
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| Publication Number | Publication Date |
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| CN113216432A true CN113216432A (en) | 2021-08-06 |
| CN113216432B CN113216432B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110411131.9A Active CN113216432B (en) | 2021-04-16 | 2021-04-16 | Combined three-dimensional shock insulation layer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03186602A (en) * | 1989-03-03 | 1991-08-14 | Kajima Corp | Cylinder lock device |
| CN104652640A (en) * | 2014-12-24 | 2015-05-27 | 北京工业大学 | Anti-pulling, limiting and earthquake-insulating device integrated by guide rails and vertical ropes |
| CN205421588U (en) * | 2016-03-16 | 2016-08-03 | 程明喆 | Three -dimensional damping platform |
| CN106401000A (en) * | 2016-10-17 | 2017-02-15 | 南京大德减震科技有限公司 | Vertical initial rigidity adjustable three-dimensional shock insulation device |
| CN106639456A (en) * | 2016-10-17 | 2017-05-10 | 南京大德减震科技有限公司 | Back pressure disc-shaped spring damper with adjustable rigidity |
| CN109098305A (en) * | 2018-09-28 | 2018-12-28 | 武汉理工大学 | A kind of Self-resetting support construction |
| CN109267809A (en) * | 2018-11-11 | 2019-01-25 | 同济大学 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
-
2021
- 2021-04-16 CN CN202110411131.9A patent/CN113216432B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03186602A (en) * | 1989-03-03 | 1991-08-14 | Kajima Corp | Cylinder lock device |
| CN104652640A (en) * | 2014-12-24 | 2015-05-27 | 北京工业大学 | Anti-pulling, limiting and earthquake-insulating device integrated by guide rails and vertical ropes |
| CN205421588U (en) * | 2016-03-16 | 2016-08-03 | 程明喆 | Three -dimensional damping platform |
| CN106401000A (en) * | 2016-10-17 | 2017-02-15 | 南京大德减震科技有限公司 | Vertical initial rigidity adjustable three-dimensional shock insulation device |
| CN106639456A (en) * | 2016-10-17 | 2017-05-10 | 南京大德减震科技有限公司 | Back pressure disc-shaped spring damper with adjustable rigidity |
| CN109098305A (en) * | 2018-09-28 | 2018-12-28 | 武汉理工大学 | A kind of Self-resetting support construction |
| CN109267809A (en) * | 2018-11-11 | 2019-01-25 | 同济大学 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
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| CN113216432B (en) | 2022-09-02 |
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