CN209923761U - Composite damping friction pendulum vibration reduction and isolation support - Google Patents
Composite damping friction pendulum vibration reduction and isolation support Download PDFInfo
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- CN209923761U CN209923761U CN201920552062.1U CN201920552062U CN209923761U CN 209923761 U CN209923761 U CN 209923761U CN 201920552062 U CN201920552062 U CN 201920552062U CN 209923761 U CN209923761 U CN 209923761U
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Abstract
The utility model provides a composite damping friction pendulum subtracts isolation bearing, should subtract isolation bearing include: an upper support plate; a lower support plate; the rubber damping piece sets up between last bedplate and lower bearing plate, and the lateral wall that the rubber damping piece closes on the upper bracket board sets up with the lateral wall of lower bearing plate. Compound damping friction pendulum subtract isolation bearing be that rigidity is bigger and fine avoid resonance and class resonance phenomenon's compound damping subtracts isolation bearing, better reply earthquake operating mode realizes the more stable shock insulation of bridge and shock-absorbing function.
Description
Technical Field
The utility model relates to an subtract isolation bearing technical field, and in particular to compound damping friction pendulum subtracts isolation bearing.
Background
Since the great earthquake of Wenchuan, China deeply studies and applies bridge shock absorption for ten years, and the earthquake-proof design concept adopted by people at present adopts a shock absorption and isolation technology. The basic principle of bridge seismic isolation design is to prolong the vibration period of the structure to isolate seismic energy, and to increase damping to absorb part of the input seismic energy through a damping device to reduce the seismic reaction of the structure and reduce the seismic damage. When the self-vibration period of the bridge is prolonged, the component with a more obvious amplitude value in the earthquake can be avoided, the resonance and the like can be avoided, and the earthquake reaction of the structure is reduced. But the extension structure cycle can increase the displacement reaction of structure, makes the appearance of support also corresponding enlargies, brings the trouble to bridge design and installation, and some structure self horizontal rigidity of subtracting the isolation bearing is less in addition, leads to the shock attenuation effect of bridge relatively poor.
Therefore, how to better realize seismic isolation and reduction while prolonging the natural vibration period of the structure and increasing the rigidity becomes a technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
In order to solve at least part above-mentioned technical problem, the utility model provides a compound damping friction pendulum subtracts isolation bearing, wherein, should subtract isolation bearing includes: an upper support plate; a lower support plate; the rubber damping piece is arranged between the upper support plate and the lower support plate, and the outer side wall of the rubber damping piece is arranged close to the side wall of the upper support plate and the side wall of the lower support plate; wherein, the below of upper bracket board has first boss, the lateral wall of first boss with the inside wall of rubber damping piece becomes first contained angle setting, the top of bottom suspension bedplate has the second boss, the lateral wall of second boss with the inside wall of rubber damping piece becomes second contained angle setting.
In some embodiments, in the composite damping friction pendulum seismic isolation and reduction bearing, the rubber damping piece is a cylinder with a hollow structure.
In some embodiments, in the composite damped friction pendulum seismic isolation bearing, the rubber damping member comprises a plurality of bulk rubber damping sub-members.
In some embodiments, in the composite damping friction pendulum seismic isolation and reduction bearing, the upper part of the rubber damping piece is fixed to the upper bearing plate through a fixing piece, and the lower part of the rubber damping piece is fixed to the lower bearing plate through a fixing piece.
In some embodiments, in the composite damping friction pendulum seismic isolation bearing, the rubber damping member comprises a plurality of rubber layers and a steel plate disposed between two of the rubber layers.
In some embodiments, in the composite damping friction pendulum seismic mitigation and isolation bearing, the seismic mitigation and isolation bearing further comprises a first spherical sliding plate and a second spherical sliding plate; the lower end surface of the first boss is a first concave spherical surface, and the first spherical sliding plate is arranged on the first concave spherical surface; the upper end face of the second boss is provided with a second concave spherical surface, and the second spherical surface sliding plate is arranged on the second concave spherical surface.
In some embodiments, in the composite damping friction pendulum seismic isolation and reduction support, the seismic isolation and reduction support further comprises a spherical crown plate, and the spherical crown plate is arranged between the first spherical sliding plate and the second spherical sliding plate.
In some embodiments, in the composite damping friction pendulum seismic mitigation and isolation bearing, the upper end surface of the spherical crown plate is a first convex spherical surface matched with the first spherical sliding plate; the lower end surface of the spherical sliding plate is a second convex spherical surface matched with the second spherical sliding plate.
In some embodiments, in the composite damping friction pendulum seismic isolation and reduction bearing, the lower end surface of the first spherical sliding plate and the upper end surface of the second spherical sliding plate are subjected to chrome plating treatment or polishing treatment.
In some embodiments, in the composite damping friction pendulum seismic mitigation and isolation bearing, the first convex spherical surface and the second convex spherical surface are coated with a stainless steel plate.
Has the advantages that:
in the compound damping friction pendulum subtract isolation bearing, with different rigidity, the structural design of different isolation principles is mixed in a support, develops a rigidity bigger and fine compound damping who avoids resonance and class resonance phenomenon subtracts isolation bearing, better reply earthquake operating mode realizes more stable shock insulation of bridge and shock-absorbing function.
Drawings
FIG. 1 is a schematic structural view of a composite damping friction pendulum seismic mitigation and isolation bearing according to an embodiment of the present invention;
FIG. 2 is a first plan view of a rubber damper in the composite damping friction pendulum seismic isolation and reduction support according to one embodiment of the present invention;
FIG. 3 is a second plan view of a rubber damper in the composite damping friction pendulum seismic mitigation and isolation bearing according to one embodiment of the present invention;
fig. 4 is a third plan view of a rubber damping member in the composite damping friction pendulum seismic isolation and reduction support according to one embodiment of the present invention.
Reference numerals:
1 represents an upper seat plate, 2 represents a first spherical sliding plate, 3 represents a lower seat plate, 4 represents a spherical crown plate, 5 represents a rubber damping member, 51 represents a rubber layer, 52 represents a steel plate, 53 represents a rubber damping member, and 6 represents a second spherical sliding plate.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, which should not be considered limiting of the invention, but rather should be understood to be a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, to the extent that numerical ranges are recited in the present disclosure, it is understood that the upper and lower limits of the range, and each intervening value therebetween, is specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only the preferred methods and materials are described in this disclosure, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present disclosure without departing from the scope or spirit of the disclosure. The specification and examples are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the stated items.
The present invention will be further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1 to 4, the utility model provides a compound damping friction pendulum subtracts isolation bearing, should subtract isolation bearing includes: an upper support plate 1; a lower support plate 3; the rubber damping piece 5 is arranged between the upper support plate 1 and the lower support plate 3, and the outer side wall of the rubber damping piece 5 is arranged close to the side wall of the upper support plate 1 and the side wall of the lower support plate 3; wherein, the below of upper bracket board 1 has first boss, the lateral wall of first boss with the inside wall of rubber damping piece 5 becomes first contained angle setting, the top of lower saddle board 3 has the second boss, the lateral wall of second boss with the inside wall of rubber damping piece 5 becomes second contained angle setting.
The utility model discloses set up rubber damping spare 5 between last bedplate 1 and bottom suspension bedplate 3, when vibrations take place, the rigidity that upper bracket board 1 and 3 frictions of bottom suspension bedplate produced, with the rigidity stack that rubber damping spare 5 produced, the compound rigidity of production is bigger to be favorable to avoiding resonance and class resonance phenomenon, reply earthquake operating mode that can be better realizes more stable shock insulation and shock-absorbing function of bridge.
The lateral wall and the rubber damping piece 5 of first boss, the lateral wall and the rubber damping piece 5 of second boss all are the contained angle setting. The first included angle and the second included angle can be equal or unequal, and the inner wall of the rubber damping piece 5 is not in contact with the side wall of the first boss and the side wall of the second boss, so that the rubber damping piece 5 is prevented from colliding with the first boss and the second boss, and the rubber damping piece 5 is protected. The second boss and the second boss are cone frustum bodies. The first and second included angles are 10 to 90 degrees, preferably 10 to 70 degrees, more preferably 15 to 60 degrees, for example 15, 20, 30, 35, 40, 45, 50, 55 or 60 degrees. In the above solution, the rubber damping member 5 is a cylinder with a hollow structure, as shown in fig. 2; the cross sections of the upper support plate 1 and the lower support plate 3 are squares with equal side length; the outer circle of the cylinder is inscribed in the square.
In the above solution, the rubber damping member 5 includes a plurality of block-shaped rubber damping sub-members 53; the cross sections of the upper support plate 1 and the lower support plate 3 are squares with equal side length; a plurality of the rubber damping components 53 are arranged on the side of the square at equal intervals, as shown in fig. 3; alternatively, a plurality of the rubber damping members 53 are uniformly arranged at the top corners of the square, as shown in fig. 4.
A plurality of rubber damping subelements 53 with annular or even respectively at upper saddle board 1 and lower support plate 3 within a definite time, in the vertical direction, each rubber damping subelement 53 is the same to upper saddle board 1, lower support plate 3's rigidity stack effect, plays the shock attenuation and isolation effect better.
In the above solution, the upper part of the rubber damper 5 is fixed to the upper support plate 1 by a fixing member, and the lower part of the rubber damper 5 is fixed to the lower support plate 3 by a fixing member.
For example, the mounting is the bolt, utilizes the bolt to fix rubber damping piece 5 at last support board 1 and undersetting, avoids rubber damping piece 5 to take place relative displacement, guarantees that rubber damping piece 5 plays the shock attenuation and isolation effect better.
In the above solution, the rubber damper 5 includes a plurality of rubber layers 51 and a steel plate 52 disposed between two of the rubber layers 51.
The mixed arrangement of the rubber layer 51 and the steel plate 52 improves the shock resistance of the damping rubber layer 51. The rubber layer 51 comprises 3-7 layers. For example, the rubber layer 51 is 3, 5 or 7 layers.
In the scheme, the seismic isolation and reduction support further comprises a first spherical sliding plate 2 and a second spherical sliding plate 6; the lower end surface of the first boss is a first concave spherical surface, and the first spherical sliding plate 2 is arranged on the first concave spherical surface; and a second concave spherical surface is arranged on the upper end surface of the second boss, and the second spherical surface sliding plate 6 is arranged on the second concave spherical surface.
The seismic isolation and reduction support further comprises a spherical crown plate 4, wherein the spherical crown plate 4 is arranged between the first spherical sliding plate 2 and the second spherical sliding plate 6. The upper end surface of the spherical crown plate 4 is a first convex spherical surface matched with the first spherical sliding plate 2; the lower end surface of the spherical sliding plate is a second convex spherical surface matched with the second spherical sliding plate 6.
When an earthquake occurs, the damping rubber block of the composite damping friction pendulum seismic isolation support provides extra damping rigidity for the support, and plays a role in seismic buffering for the bridge, namely, the rigidity generated by the upper and lower convex spherical surfaces of the spherical crown plate 4 and the concave spherical surface friction spherical pendulum surfaces of the upper and lower support plates 3 is superposed with the rigidity generated by the damping rubber block (ring) comprising the rubber layer 51, the generated composite rigidity is larger, resonance and quasi-resonance phenomena are avoided, the seismic isolation and shock absorption functions of the bridge can be better handled under the earthquake working condition, and the more stable seismic isolation and shock absorption functions of the bridge are realized.
In the above scheme, the lower end surface of the first spherical sliding plate 2 and the upper end surface of the second spherical sliding plate 6 are subjected to chrome plating treatment or polishing treatment.
In the above scheme, the first convex spherical surface and the second convex spherical surface are coated with a stainless steel plate.
A sliding friction pair is formed among the first spherical sliding plate 2, the spherical crown plate 4 and the second spherical sliding plate 6 by utilizing a stainless steel plate and/or a chromium-plated polished surface, so that the damping effect is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
Claims (10)
1. The utility model provides a compound damping friction pendulum subtracts isolation bearing, wherein, should subtract isolation bearing includes:
an upper support plate (1);
a lower support plate (3);
the rubber damping piece (5) is arranged between the upper support plate (1) and the lower support plate (3), and the outer side wall of the rubber damping piece (5) is arranged close to the side wall of the upper support plate (1) and the side wall of the lower support plate (3);
wherein, the below of upper bracket board (1) has first boss, the lateral wall of first boss with the inside wall of rubber damping piece (5) becomes first contained angle setting, the top of bottom suspension bedplate (3) has the second boss, the lateral wall of second boss with the inside wall of rubber damping piece (5) becomes second contained angle setting.
2. The composite damping friction pendulum seismic mitigation and isolation bearing according to claim 1, wherein said rubber damping member (5) is a cylinder with a hollow structure.
3. The compound damped friction pendulum seismic isolation bearing of claim 1, wherein said rubber damping member (5) comprises a plurality of massive rubber damping sub-members (53).
4. The compound damping friction pendulum seismic mitigation and isolation bearing according to claim 1, wherein the upper part of the rubber damping piece (5) is fixed to the upper bearing plate (1) by a fixing piece, and the lower part of the rubber damping piece (5) is fixed to the lower bearing plate (3) by a fixing piece.
5. The composite damped friction pendulum seismic isolation bearing of claim 1, wherein said rubber damping member (5) comprises a plurality of rubber layers (51) and a steel plate (52) disposed between two of said rubber layers (51).
6. The composite damping friction pendulum seismic isolation bearing of claim 1, wherein the seismic isolation bearing further comprises a first spherical sliding plate (2) and a second spherical sliding plate (6);
the lower end surface of the first boss is a first concave spherical surface, and the first spherical sliding plate (2) is arranged on the first concave spherical surface;
the upper end face of the second boss is provided with a second concave spherical surface, and the second spherical surface sliding plate (6) is arranged on the second concave spherical surface.
7. The composite damping friction pendulum seismic isolation bearing according to claim 6, further comprising a spherical cap plate (4), wherein the spherical cap plate (4) is disposed between the first spherical sliding plate (2) and the second spherical sliding plate (6).
8. The composite damping friction pendulum seismic mitigation and isolation bearing according to claim 7, wherein the upper end surface of said spherical crown plate (4) is a first convex spherical surface matching said first spherical sliding plate (2); the lower end surface of the spherical sliding plate is a second convex spherical surface matched with the second spherical sliding plate (6).
9. The composite damping friction pendulum seismic mitigation and isolation bearing according to claim 8, wherein the lower end face of the first spherical sliding plate (2) and the upper end face of the second spherical sliding plate (6) are chrome plated or polished.
10. The composite damping friction pendulum seismic mitigation and isolation bearing of claim 8, wherein the first convex spherical surface and the second convex spherical surface are coated with stainless steel plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920552062.1U CN209923761U (en) | 2019-04-22 | 2019-04-22 | Composite damping friction pendulum vibration reduction and isolation support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920552062.1U CN209923761U (en) | 2019-04-22 | 2019-04-22 | Composite damping friction pendulum vibration reduction and isolation support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472267A (en) * | 2020-04-18 | 2020-07-31 | 北京国道通公路设计研究院股份有限公司 | Elastic spherical support for bridge |
| CN112160237A (en) * | 2020-10-16 | 2021-01-01 | 同济大学 | Compound friction pendulum isolation bearing based on high damping rubber |
| CN114837318A (en) * | 2022-06-10 | 2022-08-02 | 苏州科裕减震科技有限公司 | Friction damping shock insulation rubber support and integrated vulcanization production method |
| CN116556529A (en) * | 2023-05-30 | 2023-08-08 | 中国地震局工程力学研究所 | Three-dimensional shock insulation support |
-
2019
- 2019-04-22 CN CN201920552062.1U patent/CN209923761U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472267A (en) * | 2020-04-18 | 2020-07-31 | 北京国道通公路设计研究院股份有限公司 | Elastic spherical support for bridge |
| CN112160237A (en) * | 2020-10-16 | 2021-01-01 | 同济大学 | Compound friction pendulum isolation bearing based on high damping rubber |
| CN114837318A (en) * | 2022-06-10 | 2022-08-02 | 苏州科裕减震科技有限公司 | Friction damping shock insulation rubber support and integrated vulcanization production method |
| CN116556529A (en) * | 2023-05-30 | 2023-08-08 | 中国地震局工程力学研究所 | Three-dimensional shock insulation support |
| CN116556529B (en) * | 2023-05-30 | 2023-09-29 | 中国地震局工程力学研究所 | Three-dimensional shock insulation support |
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