CN215668987U - One-way large-damping anti-falling beam friction pendulum support - Google Patents
One-way large-damping anti-falling beam friction pendulum support Download PDFInfo
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- CN215668987U CN215668987U CN202122258633.0U CN202122258633U CN215668987U CN 215668987 U CN215668987 U CN 215668987U CN 202122258633 U CN202122258633 U CN 202122258633U CN 215668987 U CN215668987 U CN 215668987U
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- upper bracket
- polyurethane spring
- outer fixing
- friction pendulum
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Abstract
The utility model belongs to the technical field of bridge supports and discloses a one-way large-damping anti-falling beam friction pendulum support. The main technical characteristics are as follows: including upper bracket board, sphere tetrafluoro board, ball core, plane tetrafluoro board and undersetting board, be provided with outer fixing base at the undersetting board upper surface in the upper bracket board outside, be provided with the polyurethane spring on outer fixing base, the medial extremity subsides in the upper bracket board outside of polyurethane spring. When upper bracket board horizontal migration takes place because of reasons such as earthquake, the polyurethane spring at moving direction one side receives the upper bracket board extrusion to warp gradually, because of self elasticity produces the effort opposite with moving direction, not only can consume seismic energy, after the external force cancellation, the effort that the polyurethane spring produced can also reset the upper bracket board that has deviate from the central point and put, it is effectual to reset, when displacement exceeded the limit that the support set for, outer fixing base can produce the resistance to the upper bracket board, prevent the emergence of roof beam accident.
Description
Technical Field
The utility model belongs to the technical field of bridge supports, and particularly relates to a one-way large-damping anti-falling beam friction pendulum support.
Background
The friction pendulum support can play a role in shock absorption and shock insulation through swinging energy consumption and is widely applied to bridges. Present friction pendulum support includes upper bracket board, sphere tetrafluoro board, ball core, plane tetrafluoro board and undersetting board, when taking place the earthquake, swings between upper bracket board, ball core and the undersetting board and realizes the power consumption, and above-mentioned friction pendulum support has following defect because the reason of structure: firstly, after the friction pendulum reciprocates for multiple times, residual displacement exists, and the residual displacement cannot be recovered to the original position, so that the energy consumption capacity during reciprocating circulation during earthquake again is reduced; secondly, when the magnitude of vibration is large, the swing amplitude of the friction pendulum is large, accidents such as beam falling and the like are easily caused, and the damage degree is large.
In order to solve the above problems, a viscous damper is arranged between the upper support plate and the lower support plate, so that the friction pendulum support can improve resistance when swinging, energy consumption is achieved, and when the upper support plate is deviated, the upper support plate can be reset by the damper, but the support has the following problems: firstly, the damper has high cost, poor weather-proof effect, short service life and easy oil leakage; secondly, when the earthquake direction is along the direction along the bridge direction or the transverse bridge direction, the resetting effect is obvious and has obvious directivity, but the earthquake direction is not strictly along the bridge direction or the transverse bridge direction under most conditions, so the resetting effect is not obvious.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a one-way large-damping anti-falling-beam friction pendulum support which has the advantages of simple structure, long service life and good weather-proof effect and can effectively prevent the occurrence of beam falling accidents.
In order to solve the problems, the technical scheme adopted by the one-way large-damping anti-falling beam friction pendulum support is as follows: including upper bracket board, sphere tetrafluoro board, ball core, plane tetrafluoro board and undersetting board the undersetting board upper surface in the upper bracket board outside is provided with outer fixing base be provided with the polyurethane spring on the outer fixing base, the medial extremity subsides of polyurethane spring is in the upper bracket board outside.
The additional technical characteristics are as follows:
the number of the polyurethane springs on each side surface of the upper support plate is two or more;
the outer fixing seat comprises a fixing bolt and an L-shaped fixing plate, the polyurethane spring is fixed on the side face of the L-shaped fixing plate, and oblique supporting plates are arranged at two ends of the L-shaped fixing plate.
Compared with the prior art, the one-way large-damping anti-falling beam friction pendulum support provided by the utility model has the following advantages: firstly, because the energy-saving device comprises an upper support plate, a spherical surface tetrafluoro plate, a spherical core, a plane tetrafluoro plate and a lower support plate, an outer fixing seat is arranged on the upper surface of the lower support plate outside the upper support plate, a polyurethane spring is arranged on the outer fixing seat, the end part of the inner side of the polyurethane spring is attached to the outer side of the upper support plate, when the upper support plate horizontally moves due to earthquakes and other reasons, the upper support plate is separated from the polyurethane spring on one side far away from the moving direction, the polyurethane spring on one side in the moving direction is gradually deformed by the extrusion of the upper support plate, acting force opposite to the moving direction is generated due to the elasticity of the polyurethane spring, so that not only can earthquake energy be consumed, after the external force is cancelled, the acting force generated by the polyurethane spring can reset the upper support plate which is deviated from the central position, the resetting effect is good, the energy-consuming capacity after the first energy-consuming cycle is increased, when the displacement exceeds the limit set by the support, the outer fixing seat can generate resistance to the upper support plate, so that the occurrence of beam falling accidents is prevented, good energy consumption and reset effects can be achieved in the bridge following direction, the transverse bridge direction or any other directions, and the polyurethane spring is good in corrosion resistance and weather resistance and long in service life; secondly, because the number of the polyurethane springs on each side surface of the upper support plate is two or more, the diameter of the polyurethane springs is effectively reduced under the condition of unchanging elastic deformation force due to the limited height of the upper support plate, the stress of the outer fixing seat is more uniform, and good energy consumption and reset effects can be achieved no matter in the direction along the bridge, the direction along the bridge or any other direction; thirdly, because outer fixing base includes fixing bolt and "L" type fixed plate, the polyurethane spring is fixed the side of "L" type fixed plate both ends are provided with the slant backup pad, and processing installation, debugging are more convenient, and anti extrusion, shock resistance further improve.
Drawings
FIG. 1 is a schematic structural view of a one-way large-damping anti-drop-beam friction pendulum support of the present invention;
fig. 2 is a schematic structural diagram of a one-way large-damping anti-falling beam friction pendulum support in a top view.
Detailed Description
The structure and the use principle of the one-way large-damping anti-falling beam friction pendulum support are further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, the structural schematic diagram of the one-way large-damping anti-falling beam friction pendulum support of the present invention includes an upper support plate 1, a spherical tetrafluoro plate 2, a spherical core 3, a planar tetrafluoro plate 4 and a lower support plate 5, wherein an outer fixing seat 6 is arranged on the upper surface of the lower support plate 5 outside the upper support plate 1, a polyurethane spring 7 is arranged on the outer fixing seat 6, and the end of the inner side of the polyurethane spring 7 is attached to the outer side of the upper support plate 1.
When upper bracket board horizontal migration takes place because of reasons such as earthquake, upper bracket board 1 leaves the polyurethane spring 7 who keeps away from moving direction one side, the polyurethane spring 7 at moving direction one side receives upper bracket board 1 extrusion gradual deformation, because of self elasticity produces the effort opposite with moving direction, not only can consume seismic energy, after the external force cancels, the effort that polyurethane spring 7 produced can also reset upper bracket board 1 that has deviate from the central point and put, it is effectual to reset, the power consumption ability once more after the first power consumption circulation has been increased. When the displacement exceeds the limit set by the support, the outer fixing seat 6 can generate resistance to the upper support plate 1 to prevent the occurrence of beam falling accidents, and the polyurethane spring has good corrosion resistance and weather resistance and long service life, and can play a good energy consumption and reset effect no matter in the direction along the bridge, the direction along the transverse bridge or any other directions.
The number of the polyurethane springs 7 on each side surface of the upper support plate 1 is two or more, the height of the upper support plate is limited, the diameter of the polyurethane springs is effectively reduced under the condition that the elastic deformation force is not changed, the stress of the outer fixing seat is more uniform, and good energy consumption and reset effects can be achieved in the bridge following direction, the transverse bridge direction or any other directions.
The outer fixing seat 6 comprises a fixing bolt 61 and an L-shaped fixing plate 62, the polyurethane spring 7 is fixed on the side face of the L-shaped fixing plate 62, oblique supporting plates 63 are arranged at two ends of the L-shaped fixing plate 62, machining, installation and debugging are more convenient, and the extrusion resistance and the impact resistance are further improved.
The protection scope of the present invention is not limited to the above embodiments, and it falls within the protection scope of the present invention as long as the structure is the same as or similar to the structure of the unidirectional large damping anti-falling beam friction pendulum support of the present invention.
Claims (3)
1. The utility model provides a friction pendulum support of roof beam that falls is prevented to one-way big damping, includes upper bracket board, sphere tetrafluoro board, ball core, plane tetrafluoro board and bottom suspension bedplate, its characterized in that: the upper surface of the lower support plate outside the upper support plate is provided with an outer fixing seat, a polyurethane spring is arranged on the outer fixing seat, and the end part of the inner side of the polyurethane spring is attached to the outside of the upper support plate.
2. The one-way large damping anti-falling beam friction pendulum support of claim 1, wherein: the number of the polyurethane springs on each side surface of the upper support plate is two or more.
3. The one-way large damping anti-falling beam friction pendulum support of claim 1, wherein: the outer fixing seat comprises a fixing bolt and an L-shaped fixing plate, the polyurethane spring is fixed on the side face of the L-shaped fixing plate, and oblique supporting plates are arranged at two ends of the L-shaped fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258633.0U CN215668987U (en) | 2021-09-17 | 2021-09-17 | One-way large-damping anti-falling beam friction pendulum support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258633.0U CN215668987U (en) | 2021-09-17 | 2021-09-17 | One-way large-damping anti-falling beam friction pendulum support |
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| CN215668987U true CN215668987U (en) | 2022-01-28 |
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| CN202122258633.0U Active CN215668987U (en) | 2021-09-17 | 2021-09-17 | One-way large-damping anti-falling beam friction pendulum support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808673A (en) * | 2022-03-31 | 2022-07-29 | 中铁第四勘察设计院集团有限公司 | Annular elastic shock absorption and isolation support |
| CN114991332A (en) * | 2022-06-02 | 2022-09-02 | 北京市科学技术研究院城市安全与环境科学研究所 | Vibration and shock double-control three-dimensional vibration isolation combined supporting member with negative Poisson ratio effect |
-
2021
- 2021-09-17 CN CN202122258633.0U patent/CN215668987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808673A (en) * | 2022-03-31 | 2022-07-29 | 中铁第四勘察设计院集团有限公司 | Annular elastic shock absorption and isolation support |
| CN114991332A (en) * | 2022-06-02 | 2022-09-02 | 北京市科学技术研究院城市安全与环境科学研究所 | Vibration and shock double-control three-dimensional vibration isolation combined supporting member with negative Poisson ratio effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A unidirectional large damping anti falling beam friction pendulum support Effective date of registration: 20230711 Granted publication date: 20220128 Pledgee: China Construction Bank Corporation Hengshui Housing and Urban Construction Sub-branch Pledgor: HENGSHUI RUBBER GENERAL PLANT Co.,Ltd. Registration number: Y2023980048118 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |