CN109235245B - Self-resetting lead core rubber shock insulation support - Google Patents
Self-resetting lead core rubber shock insulation support Download PDFInfo
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- CN109235245B CN109235245B CN201811266983.8A CN201811266983A CN109235245B CN 109235245 B CN109235245 B CN 109235245B CN 201811266983 A CN201811266983 A CN 201811266983A CN 109235245 B CN109235245 B CN 109235245B
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- connecting plate
- force transmission
- transmission ring
- horizontal force
- support
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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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
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a self-resetting lead rubber shock insulation support, which belongs to the technical field of shock insulation of buildings and bridges and comprises an upper connecting plate, a lower connecting plate, a sliding support cylinder and a lead rubber support; the lower surface of the upper connecting plate is fixedly provided with a sliding plate and is provided with a curved surface protruding downwards; the lower part of the sliding support cylinder is fixedly connected with the lower connecting plate, and the upper part of the sliding support cylinder is in sliding connection with the curved surface of the sliding plate; the lower part of the lead core rubber support is fixedly connected with the lower connecting plate, and the upper part of the lead core rubber support is fixedly provided with an upper connecting plate of the lead core rubber support; an inner horizontal force transmission ring is fixedly arranged on the sliding plate, an outer horizontal force transmission ring is fixedly arranged on the upper connecting plate of the lead core rubber support, the inner horizontal force transmission ring is nested inside the outer horizontal force transmission ring, and the inner horizontal force transmission ring and the outer horizontal force transmission ring can slide in the vertical direction relatively. The lead rubber is not influenced by vertical tension and compression loads, the stability is good, the horizontal energy consumption capability of the lead rubber is fully exerted, the shock insulation support has a good self-resetting function, and the safety performance and the shock resistance of the shock insulation support are integrally improved.
Description
Technical Field
The invention relates to the technical field of building and bridge shock insulation, in particular to a self-resetting lead core rubber shock insulation support.
Background
China is between the Pacific earthquake zone and the Eurasian earthquake zone in the Pacific ocean, and is one of the countries with multiple earthquakes. The strong shock effect can cause a large number of building structures and bridge structures to be damaged and even collapsed. The structure safety is difficult to guarantee only by the self-earthquake resistance of the structure in a high-intensity area. The advent of seismic isolation devices has provided a new approach to seismic design of building and bridge structures, the effectiveness of which has been tested by practical engineering. As a traditional shock isolation device, the lead rubber support is widely applied due to good stability and durability.
Although traditional lead core rubber support construction is simple, the shock insulation effect is better, it still has some not enoughly, mainly shows:
1. the lead core rubber bearing may be destabilized and damaged under the action of earthquake. Research shows that the vertical critical load of the lead core rubber support can be reduced along with the increase of horizontal displacement; in addition, considering the vertical seismic action, the pedestal may be subjected to vertical loads far exceeding the static state, and when the vertical loads borne by the pedestal exceed the vertically adjacent loads, the pedestal will be damaged by instability.
2. Rubber has good compression resistance but weak tensile strength. The lead rubber bearing can be under the action of tensile force under the action of vertical earthquake, so that the bearing is damaged in tension.
3. Under the action of a large pressure, the resetting capability of the lead rubber support can be insufficient, so that excessive residual deformation of the upper structure is generated.
4. The lead core rubber support in the prior art is exposed in various severe environments for a long time, is easy to generate natural damage such as collision, temperature difference, corrosion and the like, and has poor durability.
Disclosure of Invention
The invention aims to provide a self-resetting lead rubber shock insulation support to solve the problems in the prior art, so that the lead rubber is not influenced by vertical tension and compression loads, the stability is good, the horizontal energy consumption capability of the lead rubber is fully exerted, the shock insulation support has a good self-resetting function, the safety performance and the shock resistance of the self-resetting lead rubber shock insulation support are integrally improved, and the durability of the lead rubber shock insulation support is improved.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a self-resetting lead rubber shock insulation support which comprises an upper connecting plate, a lower connecting plate, a sliding supporting cylinder and a lead rubber support; a sliding plate is fixedly arranged on the lower surface of the upper connecting plate and is provided with a curved surface protruding downwards; the lower part of the sliding support cylinder is fixedly connected with the lower connecting plate, and the upper part of the sliding support cylinder is in contact with the curved surface of the sliding plate and can slide relatively; the lead core rubber support is arranged in the sliding support cylinder, the lower part of the lead core rubber support is fixedly connected with the lower connecting plate, and the upper part of the lead core rubber support is fixedly provided with an upper connecting plate of the lead core rubber support; the lead core rubber support is characterized in that an inner horizontal force transmission ring is fixedly arranged on the sliding plate, an outer horizontal force transmission ring is fixedly arranged on an upper connecting plate of the lead core rubber support, the inner horizontal force transmission ring is nested inside the outer horizontal force transmission ring, and the inner horizontal force transmission ring and the outer horizontal force transmission ring can slide in the vertical direction relatively.
Optionally, the curved surface of the sliding plate is a spherical surface.
Optionally, the sliding support cylinder is coated with a first lubricating material layer on the upper surface.
Optionally, the sliding support cylinder is a steel support cylinder, and the sliding plate is a steel plate.
Optionally, the inner surface of the outer horizontal force transfer ring is coated with a second layer of lubricating material.
Optionally, the inner horizontal force transmission ring and the outer horizontal force transmission ring are both steel rings.
Optionally, the lower end of the inner horizontal force transmission ring is provided with a first bending edge which is turned over outwards along the radial direction, the upper end of the outer horizontal force transmission ring is provided with a second bending edge which is turned over inwards along the radial direction, and the outer diameter of the first bending edge is larger than the inner diameter of the second bending edge.
Optionally, the outer side wall of the outer horizontal force transmission ring is glued with a high elastic cushion layer.
Optionally, the upper connecting plate, the lower connecting plate and the upper connecting plate of the lead core rubber support are all round steel plates.
Optionally, the first lubricating material layer and the second lubricating material layer are made of solid molybdenum disulfide, graphite fluoride, silicon nitride, niobium diselenide, or polytetrafluoroethylene.
Compared with the prior art, the invention has the following technical effects:
according to the self-resetting lead core rubber shock insulation support, the vertical load of the support is borne by the sliding support cylinder, so that the problem that the lead core rubber support is easy to lose stability due to the fact that the lead core rubber support directly bears the vertical load is solved; when the support is laterally moved, the sliding support cylinder and the curved surface of the sliding plate can slide relatively under the action of the gravity of the upper structure, so that the upper connecting plate automatically restores the original position, and the excessive dependence on the lead core is reduced; in addition, the inner horizontal force transmission ring and the outer horizontal force transmission ring of the lead core rubber support can slide vertically and relatively under the action of an earthquake and keep the same horizontal displacement, so that the lead core rubber support only bears the horizontal load action and does not bear vertical pressure or tensile force, and the instability damage and the tensile damage of the lead core rubber support can be avoided; meanwhile, the horizontal relative displacement of the upper connecting plate and the lower connecting plate is acted on the lead core rubber support by the inner horizontal force transmission ring and the outer horizontal force transmission ring, so that the horizontal energy consumption capability of the lead core rubber support is fully exerted. The structure improves the safety performance and the shock resistance of the shock insulation support integrally. The lead core rubber support of the support is positioned in a closed environment formed by the lower connecting plate, the sliding support cylinder and the sliding plate, and the sliding plate and the sliding support cylinder are temporarily contacted with the external environment only when the sliding plate and the sliding support cylinder slide relatively in the earthquake, so that the support has good durability and applicability.
Furthermore, the sliding contact surfaces such as the upper surface of the sliding support cylinder and the inner side wall of the outer horizontal force transmission circular ring are coated with lubricating materials such as solid molybdenum disulfide, graphite fluoride, silicon nitride, niobium diselenide or polytetrafluoroethylene, the friction coefficient of the contact surfaces is reduced, the resetting capability of the shock insulation support is effectively improved, and the function of preventing the lead core rubber support from being damaged by tension is improved.
Furthermore, the first bending edge on the inner horizontal transmission ring and the second bending edge on the outer horizontal transmission ring can play a limiting role when the upper connecting plate and the sliding plate generate larger vertical displacement relative to the upper connecting plate of the lead core rubber support, so that the upper connecting plate and the sliding plate are effectively prevented from being separated from the support body, and the support is ensured to keep normal work in an earthquake.
Furthermore, the outer horizontal force transmission ring is likely to be in contact with the inner wall of the sliding support cylinder under the action of horizontal load, so that the limiting effect is achieved on the lead core rubber support, the outer side wall of the outer horizontal force transmission ring is cemented with the high-elasticity cushion layer, the buffering effect is achieved when the outer horizontal force transmission ring is in contact with the sliding support cylinder, and the outer horizontal force transmission ring is prevented from being impacted and deformed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a self-resetting lead rubber seismic isolation bearing provided by the invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
fig. 4 is a cross-sectional view taken along line C-C in fig. 2.
In the figure: 1-an upper connecting plate; 2-a lower connecting plate; 3-sliding the supporting cylinder; 4-a sliding plate; 5-outer horizontal force transmission ring; 6-inner horizontal force transmission ring; 7-lead core rubber support upper connecting plate; 8-lead core rubber support.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a self-resetting lead rubber shock insulation support so as to solve the problems in the prior art, the lead rubber support is arranged in a closed space formed by a lower connecting plate, a sliding support cylinder and an upper connecting plate with a curved sliding plate, and is connected with the sliding plate through an inner horizontal transmission circular ring, an outer horizontal transmission circular ring and the upper connecting plate of the lead rubber support, so that the lead rubber support is prevented from being subjected to overlarge vertical tension and pressure, the horizontal energy consumption capability of the lead rubber support is fully exerted, and the shock resistance and the durability of the support are improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-4, the embodiment provides a self-resetting lead rubber vibration isolation support, which comprises an upper connecting plate 1, a lower connecting plate 2, a sliding support cylinder 3 and a lead rubber support 8; a sliding plate 4 is fixedly arranged on the lower surface of the upper connecting plate 1, and the sliding plate 4 is provided with a curved surface protruding downwards; the lower part of the sliding support cylinder 3 is fixedly connected with the lower connecting plate 2, and the upper part of the sliding support cylinder 3 is contacted with the curved surface of the sliding plate 4 and can slide relatively; the lead core rubber support 8 is arranged inside the sliding support cylinder 3, the lower part of the lead core rubber support 8 is fixedly connected with the lower connecting plate 2, and the upper part of the lead core rubber support 8 is fixedly provided with an upper connecting plate 7 of the lead core rubber support; an inner horizontal force transmission ring 6 is fixedly arranged on the sliding plate 4, an outer horizontal force transmission ring 5 is fixedly arranged on a lead core rubber support upper connecting plate 7, the inner horizontal force transmission ring 6 is nested inside the outer horizontal force transmission ring 5, and the inner horizontal force transmission ring and the outer horizontal force transmission ring can slide relatively in the vertical direction.
In the self-resetting lead rubber shock insulation support provided by the embodiment, in a static state, the load on the upper connecting plate 1 is transmitted to the sliding support cylinder 3 through the sliding plate 4 and then transmitted to the lower connecting plate 2 and the lower stress structure, and the lead rubber support 8 is positioned in the sliding support cylinder 3 and is not under the pressure action of a vertical load; when the building is subjected to earthquake action, the upper connecting plate 1 and the lower connecting plate 2 generate horizontal and vertical relative displacement, and when the support moves laterally, the sliding support cylinder 3 and the sliding plate 4 can slide relatively between the curved surfaces under the action of the gravity of the upper structure, so that the upper connecting plate 1 automatically restores the original position, the excessive dependence on the lead core is reduced, the horizontal relative displacement of the upper connecting plate 1 and the lower connecting plate 2 is acted on the lead core rubber support 8 by the inner horizontal force transmission ring 6 and the outer horizontal force transmission ring 5, and the horizontal energy consumption capability of the lead core rubber support 8 is fully exerted; when vertical displacement occurs, the inner horizontal force transmission circular ring 6 and the outer horizontal force transmission circular ring 5 can slide relatively in the vertical direction under the action of an earthquake, so that a vertical moving space is provided for the upper connecting plate 1 and the sliding plate 4, and the lead core rubber support 8 is prevented from being directly pulled; the lead rubber support 8 is in a closed environment formed by the lower connecting plate 2, the sliding support cylinder 3 and the sliding plate 4, and only when the sliding plate 4 and the sliding support cylinder 3 slide relatively when an earthquake occurs, the lead rubber support 8 is temporarily contacted with the external environment, so that the lead rubber support 8 is effectively protected.
Further, the curved surface of the sliding plate 4 is a spherical surface.
Further, the first lubricating material layer is coated on the upper surface of the sliding support cylinder 3, so that the friction coefficient of a contact surface between the sliding support cylinder 3 and the sliding plate 4 is effectively reduced, and the self-resetting capability of the support is improved.
Further, the sliding support cylinder 3 is a steel support cylinder, and the sliding plate 4 is a steel plate.
Furthermore, the inner surface of the outer horizontal force transmission ring 5 is coated with a second lubricating material layer, so that the friction coefficient of a contact surface between the inner horizontal force transmission ring 6 and the outer horizontal force transmission ring 5 is effectively reduced, the upper connecting plate 1 and the lower connecting plate 2 can smoothly slide when vertical relative displacement occurs, and the lead core rubber support 8 is ensured not to be damaged by tension.
Further, the inner horizontal force transmission ring 6 and the outer horizontal force transmission ring 5 are both steel rings.
Further, the lower end of the inner horizontal force transmission ring 6 is provided with a first bending edge which is turned outwards along the radial direction, the upper end of the outer horizontal force transmission ring 5 is provided with a second bending edge which is turned inwards along the radial direction, and the outer diameter of the first bending edge is larger than the inner diameter of the second bending edge; when the upper connecting plate 1 and the sliding plate 4 generate large vertical displacement relative to the upper connecting plate 7 of the lead core rubber support, the first bending edge moves to the lower part of the second bending edge, and the first bending edge and the second bending edge are contacted and abutted with each other, so that the displacement of the upper connecting plate 1 and the sliding plate 4 relative to the upper connecting plate 7 of the lead core rubber support is limited, the upper connecting plate 1 and the sliding plate 4 are effectively prevented from being separated from the support body, and the support is ensured to keep normal work in an earthquake.
Furthermore, the outer side wall of the outer horizontal transmission ring 5 is glued with a high-elasticity cushion layer, and when the outer horizontal transmission ring 5 is contacted with the sliding support cylinder, the high-elasticity cushion layer can play a role in buffering, so that the outer horizontal transmission ring 5 is prevented from being impacted and deformed.
Furthermore, the upper connecting plate 1, the lower connecting plate 2 and the upper connecting plate 7 of the lead core rubber support are all round steel plates.
Further, the first lubricating material layer and the second lubricating material layer are made of solid molybdenum disulfide, graphite fluoride, silicon nitride, niobium diselenide or polytetrafluoroethylene.
The principle and the implementation of the present invention are explained by applying specific examples in the embodiment, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (11)
1. The utility model provides a from plumbous core rubber shock insulation support that restores to throne which characterized in that: comprises an upper connecting plate, a lower connecting plate, a sliding supporting cylinder and a lead rubber support; a sliding plate is fixedly arranged on the lower surface of the upper connecting plate and is provided with a curved surface protruding downwards; the lower part of the sliding support cylinder is fixedly connected with the lower connecting plate, and the upper part of the sliding support cylinder is in contact with the curved surface of the sliding plate and can slide relatively; the lead core rubber support is arranged in the sliding support cylinder, the lower part of the lead core rubber support is fixedly connected with the lower connecting plate, and the upper part of the lead core rubber support is fixedly provided with an upper connecting plate of the lead core rubber support; the lead core rubber support is characterized in that an inner horizontal force transmission ring is fixedly arranged on the sliding plate, an outer horizontal force transmission ring is fixedly arranged on an upper connecting plate of the lead core rubber support, the inner horizontal force transmission ring is nested inside the outer horizontal force transmission ring, and the inner horizontal force transmission ring and the outer horizontal force transmission ring can slide in the vertical direction relatively.
2. The self-resetting lead rubber isolation bearing of claim 1, wherein: the curved surface of the sliding plate is a spherical surface.
3. The self-resetting lead rubber isolation bearing of claim 1, wherein: the upper surface of the sliding support cylinder is coated with a first lubricating material layer.
4. A self-resetting lead rubber seismic isolation bearing according to any one of claims 1 to 3, wherein: the sliding support cylinder is a steel support cylinder, and the sliding plate is a steel plate.
5. The self-resetting lead rubber isolation bearing of claim 1, wherein: the inner surface of the outer horizontal force transmission ring is coated with a second lubricating material layer.
6. The self-resetting lead rubber isolation bearing according to claim 1 or 5, wherein: the inner horizontal force transmission ring and the outer horizontal force transmission ring are both steel rings.
7. The self-resetting lead rubber isolation bearing according to claim 1 or 5, wherein: the lower end of the inner horizontal force transmission ring is provided with a first bending edge which is turned outwards along the radial direction, the upper end of the outer horizontal force transmission ring is provided with a second bending edge which is turned inwards along the radial direction, and the outer diameter of the first bending edge is larger than the inner diameter of the second bending edge.
8. The self-resetting lead rubber isolation bearing according to claim 1 or 5, wherein: the outer side wall of the outer horizontal force transmission ring is glued with a high-elasticity cushion layer.
9. The self-resetting lead rubber isolation bearing of claim 1, wherein: the upper connecting plate, the lower connecting plate and the upper connecting plate of the lead core rubber support are all round steel plates.
10. The self-resetting lead rubber isolation bearing of claim 3, wherein: the first lubricating material layer is made of solid molybdenum disulfide, graphite fluoride, silicon nitride, niobium diselenide or polytetrafluoroethylene.
11. The self-resetting lead rubber isolation bearing of claim 5, wherein: the second lubricating material layer is made of solid molybdenum disulfide, graphite fluoride, silicon nitride, niobium diselenide or polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266983.8A CN109235245B (en) | 2018-10-29 | 2018-10-29 | Self-resetting lead core rubber shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266983.8A CN109235245B (en) | 2018-10-29 | 2018-10-29 | Self-resetting lead core rubber shock insulation support |
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| Publication Number | Publication Date |
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| CN109235245A CN109235245A (en) | 2019-01-18 |
| CN109235245B true CN109235245B (en) | 2020-04-14 |
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| CN201811266983.8A Active CN109235245B (en) | 2018-10-29 | 2018-10-29 | Self-resetting lead core rubber shock insulation support |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952669B (en) * | 2019-11-22 | 2021-02-19 | 南京金海设计工程有限公司 | Assembled building with antidetonation function |
| CN111549817B (en) * | 2020-04-30 | 2022-02-22 | 上海二十冶建设有限公司 | Jacking construction method of large-scale damping module |
| CN112900250B (en) * | 2021-01-18 | 2022-02-18 | 招商局重庆交通科研设计院有限公司 | Bridge shock insulation support and mounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303497A (en) * | 2006-05-09 | 2007-11-22 | Toyo Tire & Rubber Co Ltd | Laminated rubber bearing device |
| KR100950257B1 (en) * | 2007-11-05 | 2010-03-31 | 대봉비엠텍 주식회사 | Elastomeric bearing allowable for the complex movement |
| CN102286917A (en) * | 2010-11-11 | 2011-12-21 | 东南大学 | Multifunctional isolation bridge bearing |
| CN202881846U (en) * | 2012-10-09 | 2013-04-17 | 同济大学 | Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring |
| CN102912857A (en) * | 2012-11-07 | 2013-02-06 | 沈阳建筑大学 | Inner round platform frictional sliding isolation bearing |
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