CN214459591U - Damper type friction pendulum vibration reduction and isolation support - Google Patents
Damper type friction pendulum vibration reduction and isolation support Download PDFInfo
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- CN214459591U CN214459591U CN202120056316.8U CN202120056316U CN214459591U CN 214459591 U CN214459591 U CN 214459591U CN 202120056316 U CN202120056316 U CN 202120056316U CN 214459591 U CN214459591 U CN 214459591U
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Abstract
The utility model discloses a attenuator formula friction pendulum subtracts isolation bearing, including the last bedplate of vibration damping bed board with be located the vibration damping bed board top, go up the bedplate lower extreme and be provided with the spherical crown welt that can slide, the vibration damping bed board upper end is provided with the combination ball pendulum that can slide, and combination ball pendulum upper end and spherical crown welt lower extreme contact slip, combination ball pendulum outer wall department are provided with damping connection structure, and damping connection structure is destroyed the back, forms interior spigot surface in the combination ball pendulum. The utility model discloses well attenuator is as last shock attenuation ball pendulum, the connection basis of lower shock attenuation ball pendulum, goes up the screw rod and combines through perforation or fluting pivoted mode and with the nut, after reacing certain vibration level, damping connection structure will go up shock attenuation ball pendulum, lower shock attenuation ball pendulum release, obtains bigger displacement volume and corner volume, guarantees the safety of bridge, adjusts through the attenuator, the utility model discloses it is convenient to change, the maintenance of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering, concretely relates to attenuator formula friction pendulum subtracts isolation bearing.
Background
At present, a friction pendulum vibration reduction and isolation support in a highway bridge reduces the response of a structure under the action of earthquake, wind and the like and improves the safety of the structure by arranging a vibration reduction or isolation device in the structure. The friction pendulum seismic mitigation and isolation support in the highway bridge plays a positive role in solving the design problem of the construction engineering in the high-intensity area, saving construction cost and construction land and improving the seismic and disaster prevention capability of the engineering and the city.
The friction pendulum vibration reduction and isolation support commonly used at home and abroad can be divided into a double sliding surface and a three sliding surface according to the arrangement mode of the sliding surfaces, the sliding support is influenced by the space of the sliding support, and the sliding displacement and the rotating angle of the sliding support are restricted.
The conventional double-sliding-surface and three-sliding-surface support has the same sliding surface rotational friction coefficient, seismic energy is consumed through sliding interface friction to achieve the shock absorption function under the action of an earthquake, and meanwhile, an earthquake-resistant bolt is stressed and damaged in the earthquake process, so that the support integrally participates in earthquake resistance, but a damaged bolt residual component is left in the support, and the support is inconvenient to replace and difficult to maintain.
Disclosure of Invention
The utility model discloses a solve the problem that prior art exists and propose, its purpose provides a attenuator formula friction pendulum subtracts isolation bearing.
The technical scheme of the utility model is that: the utility model provides a attenuator formula friction pendulum subtracts isolation bearing, includes the last bedplate of vibration damping mount board and position in vibration damping mount board top, it is provided with the spherical crown welt that can slide to go up the bedplate lower extreme, vibration damping mount board upper end is provided with the combination spherical pendulum that can slide, combination spherical pendulum upper end and spherical crown welt lower extreme contact slip, combination spherical pendulum outer wall department is provided with carries out the damping connection structure who fixes to it, the damping connection structure is destroyed the back, forms interior spigot surface in the combination spherical pendulum.
Furthermore, the combined spherical pendulum comprises an upper damping spherical pendulum matched with the spherical cap lining plate and a lower damping spherical pendulum matched with the damping base plate, and the damping connecting structure fixes the upper damping spherical pendulum and the lower damping spherical pendulum into a whole.
Furthermore, the damping connection structure comprises a damper, an upper screw is arranged on one side of the damper, and the upper screw is fixed with the upper damping ball pendulum.
Further, a through hole is formed in the lower damping pendulum, and a lower bolt is screwed into the damper through the through hole.
Furthermore, an installation table is formed at the outer ring of the upper damping ball pendulum, and the upper screw penetrates through the installation table and then is screwed with a nut for limiting and fixing.
Furthermore, an inclined assembly part is formed at the outer ring of the lower damping ball pendulum, the lower bolt penetrates through the inclined assembly part, and the nut of the lower bolt is in contact with the lower plane of the inclined assembly part for limiting.
Furthermore, the damping connecting structure is arranged in an inclined mode, and an included angle between the axis of the damping connecting structure and the horizontal plane is an acute angle.
Furthermore, the damping connecting structures are uniformly distributed in the circumferential direction of the combined pendulum.
Furthermore, the upper damping ball pendulum and the lower damping ball pendulum are in upper arc surface contact, and a middle damping sliding plate is arranged between the upper damping ball pendulum and the lower damping ball pendulum.
Furthermore, an installation groove is formed in the side wall of the upper damping ball pendulum, the cross section of the upper screw rod is strip-shaped, and the narrow part of the upper screw rod is rotationally clamped after passing through the installation groove.
The utility model discloses well attenuator is as last shock attenuation pendulum, the connection basis of lower shock attenuation pendulum, goes up the screw rod and combines through perforation or fluting pivoted mode and with the nut to assemble with last shock attenuation pendulum, the bolt is through the mode of twisting down, carries out the regulation of damping volume, after reacing certain vibration level, damping connection structure will go up shock attenuation pendulum, lower shock attenuation pendulum release, thereby obtain bigger displacement volume and corner volume, guarantee the safety of bridge, adjust fixedly through the attenuator, the utility model discloses it is convenient to change, the maintenance of being convenient for.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial structural schematic diagram of the present invention;
FIG. 3 is an assembly view of the damping connection structure of the present invention;
FIG. 4 is a schematic cross-sectional view of the upper screw of the present invention;
FIG. 5 is a cross-sectional view of section A-A of FIG. 2;
wherein:
1 upper seat board 2 plane slide board
3 spherical cap lining plate 4 dustproof ring
5 spherical surface slide 6 combined pendulum
Damping connecting structure of 7-middle damping sliding plate 8
Lower 9 damping slide plate and 10 damping base plate
6.1 Upper damping pendulum 6.2 lower damping pendulum
6.3 mounting groove
8.1 damper 8.2 lower bolt
8.3 nut 8.4 upper screw
8.5 nuts.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1-5, a damper type friction pendulum vibration reduction and isolation support comprises a damping base plate 10 and an upper base plate 1 located above the damping base plate 10, wherein a spherical crown lining plate 3 capable of sliding is arranged at the lower end of the upper base plate 1, a combined spherical pendulum 6 capable of sliding is arranged at the upper end of the damping base plate 10, the upper end of the combined spherical pendulum 6 slides in contact with the lower end of the spherical crown lining plate 3, a damping connecting structure 8 for fixing the combined spherical pendulum is arranged on the outer wall of the combined spherical pendulum 6, and an inner sliding surface is formed in the combined spherical pendulum 6 after the damping connecting structure 8 is damaged.
The combined pendulum 6 comprises an upper damping pendulum 6.1 matched with the spherical crown lining plate 3 and a lower damping pendulum 6.2 matched with the damping base plate 10, and the damping connecting structure 8 fixes the upper damping pendulum 6.1 and the lower damping pendulum 6.2 into a whole.
The damping connecting structure 8 comprises a damper 8.1, an upper screw 8.4 is arranged on one side of the damper 8.1, and the upper screw 8.4 is fixed with an upper damping pendulum 6.1.
A through hole is formed in the lower damping pendulum 6.2, through which a lower bolt 8.2 is screwed into the damper 8.1.
An installation platform is formed at the outer ring of the upper damping ball pendulum 6.1, and the upper screw 8.4 penetrates through the installation platform and then is screwed with a nut 8.5 for limiting and fixing.
An inclined assembly part is formed at the outer ring of the lower damping ball pendulum 6.2, the lower bolt 8.2 penetrates through the inclined assembly part, and the nut 8.3 of the lower bolt 8.2 is in contact with the lower plane of the inclined assembly part for limiting.
The damping connecting structures 8 are uniformly distributed in the circumferential direction of the combined spherical pendulum 6.
The upper damping pendulum 6.1 and the lower damping pendulum 6.2 are in upper arc surface contact, and a middle damping sliding plate 7 is arranged between the upper damping pendulum 6.1 and the lower damping pendulum 6.2.
The upper end of the spherical crown lining plate 3 is provided with a plane sliding plate 2, and the plane sliding plate 2 is contacted with the lower end of the upper seat plate 1.
The holding tank is formed on the top end of the spherical crown lining plate 3, the plane sliding plate 2 is arranged in the holding tank, and the thickness of the plane sliding plate 2 is larger than the depth of the holding tank, so that the upper end of the plane sliding plate 2 can be ensured to be capable of extending out of the upper surface of the spherical crown lining plate 3.
The lower end of the spherical cap liner plate 3 forms a lower arc-shaped surface, the top of the upper damping spherical pendulum 6.1 forms a lower arc-shaped surface matched with the upper damping spherical pendulum, a spherical sliding plate 5 is arranged between the spherical cap liner plate 3 and the upper damping spherical pendulum 6.1, and the shape of the spherical sliding plate 5 is matched with the spherical cap liner plate 3 and the upper damping spherical pendulum 6.1.
The lower end of the lower damping pendulum 6.2 forms an accommodating groove, a lower damping sliding plate 9 is arranged in the accommodating groove, the lower damping sliding plate 9 extends out of the lower end face of the lower damping pendulum 6.2, and the lower damping sliding plate 9 is in contact with a damping base plate 10.
Preferably, the lower damping ball pendulum 6.2 and the damping base plate 10 are in arc surface contact, and the arc surface is a lower arc surface.
Correspondingly, the lower damping sliding plate 9 is a lower arc-surface damping sliding plate.
And a middle damping sliding plate 7 is arranged between the upper damping ball pendulum 6.1 and the lower damping ball pendulum 6.2.
A through hole is formed in the mounting table of the upper damping pendulum 6.1, and the upper screw 8.4 is inserted through the through hole and then fixed by a nut 8.5.
Yet another embodiment
The utility model provides a shock insulation support is subtracted to attenuator formula friction pendulum, includes vibration damping base plate 10 and the last bedplate 1 that is located vibration damping base plate 10 top, go up 1 lower extreme of bedplate and be provided with gliding spherical crown welt 3, vibration damping base plate 10 upper end is provided with gliding combination pendulum 6, the contact of 6 upper ends of combination pendulum and 3 lower extremes of spherical crown welt slides, 6 outer wall departments of combination pendulum are provided with carries out fixed damping connection structure 8 to it, damping connection structure 8 is destroyed the back, forms interior slip surface in the combination pendulum 6.
The combined pendulum 6 comprises an upper damping pendulum 6.1 matched with the spherical crown lining plate 3 and a lower damping pendulum 6.2 matched with the damping base plate 10, and the damping connecting structure 8 fixes the upper damping pendulum 6.1 and the lower damping pendulum 6.2 into a whole.
The damping connecting structure 8 comprises a damper 8.1, an upper screw 8.4 is arranged on one side of the damper 8.1, and the upper screw 8.4 is fixed with an upper damping pendulum 6.1.
A through hole is formed in the lower damping pendulum 6.2, through which a lower bolt 8.2 is screwed into the damper 8.1.
An installation platform is formed at the outer ring of the upper damping ball pendulum 6.1, and the upper screw 8.4 penetrates through the installation platform and then is screwed with a nut 8.5 for limiting and fixing.
An inclined assembly part is formed at the outer ring of the lower damping ball pendulum 6.2, the lower bolt 8.2 penetrates through the inclined assembly part, and the nut 8.3 of the lower bolt 8.2 is in contact with the lower plane of the inclined assembly part for limiting.
The damping connecting structures 8 are uniformly distributed in the circumferential direction of the combined spherical pendulum 6.
The upper damping pendulum 6.1 and the lower damping pendulum 6.2 are in upper arc surface contact, and a middle damping sliding plate 7 is arranged between the upper damping pendulum 6.1 and the lower damping pendulum 6.2.
The upper damping pendulum 6.1 and the lower damping pendulum 6.2 are in upper arc surface contact, and a middle damping sliding plate 7 is arranged between the upper damping pendulum 6.1 and the lower damping pendulum 6.2.
The upper end of the spherical crown lining plate 3 is provided with a plane sliding plate 2, and the plane sliding plate 2 is contacted with the lower end of the upper seat plate 1.
The holding tank is formed on the top end of the spherical crown lining plate 3, the plane sliding plate 2 is arranged in the holding tank, and the thickness of the plane sliding plate 2 is larger than the depth of the holding tank, so that the upper end of the plane sliding plate 2 can be ensured to be capable of extending out of the upper surface of the spherical crown lining plate 3.
The lower end of the spherical cap liner plate 3 forms a lower arc-shaped surface, the top of the upper damping spherical pendulum 6.1 forms a lower arc-shaped surface matched with the upper damping spherical pendulum, a spherical sliding plate 5 is arranged between the spherical cap liner plate 3 and the upper damping spherical pendulum 6.1, and the shape of the spherical sliding plate 5 is matched with the spherical cap liner plate 3 and the upper damping spherical pendulum 6.1.
The lower end of the lower damping pendulum 6.2 forms an accommodating groove, a lower damping sliding plate 9 is arranged in the accommodating groove, the lower damping sliding plate 9 extends out of the lower end face of the lower damping pendulum 6.2, and the lower damping sliding plate 9 is in contact with a damping base plate 10.
Preferably, the lower damping ball pendulum 6.2 and the damping base plate 10 are in arc surface contact, and the arc surface is a lower arc surface.
Correspondingly, the lower damping sliding plate 9 is a lower arc-surface damping sliding plate.
And a middle damping sliding plate 7 is arranged between the upper damping ball pendulum 6.1 and the lower damping ball pendulum 6.2.
The side wall of the upper damping pendulum 6.1 is provided with an installation groove 6.3, the section of the upper screw 8.4 is strip-shaped, and the narrow part of the upper screw 8.4 is rotationally clamped after passing through the installation groove 6.3.
The groove width of the mounting groove 6.3 corresponds to the narrow part of the upper screw 8.4, the narrow part of the upper screw 8.4 can pass through the mounting groove 6.3, an arc-shaped rotating part is formed at the position of the mounting groove 6.3, and the upper screw 8.4 can rotate in the arc-shaped rotating part after being inserted, so that clamping is realized.
Further, an external thread is formed on the outer wall of the wide part of the upper screw 8.4, a nut 8.5 is screwed on the external thread, and the nut 8.5 and the wide and narrow part of the upper screw 8.4 are combined to fix and limit.
Correspondingly, the lower screw 8.3 can also be mounted in a slotted manner.
And a sliding limiting structure is formed in the upper seat plate 1, the spherical crown lining plate 3 and the damping base plate 10.
Correspondingly, the lower end of the upper seat plate 1 forms a lower baffle body which limits the sliding of the spherical crown lining plate 3.
Correspondingly, two sides of the spherical crown lining plate 3 form retaining rings, and the retaining rings limit the sliding of the combined spherical pendulum 6.
Correspondingly, the upper part of the damping base plate 10 forms an upper baffle which limits the sliding of the combined pendulum 6.
Preferably, at least four damping connecting structures 8 are circumferentially and uniformly distributed.
The working process of the utility model is as follows:
under the condition of a large earthquake, the damping connection structure 8 is damaged, so that the upper damping pendulum 6.1, the lower damping pendulum 6.2 and the middle damping sliding plate 7 are released, and after the damping connection structure 8 is damaged, the upper damping pendulum 6.1 and the lower damping pendulum 6.2 can further absorb energy through sliding, and further damping of the structure is realized.
The utility model discloses well attenuator is as last shock attenuation pendulum, the connection basis of lower shock attenuation pendulum, goes up the screw rod and combines through perforation or fluting pivoted mode and with the nut to assemble with last shock attenuation pendulum, the bolt is through the mode of twisting down, carries out the regulation of damping volume, after reacing certain vibration level, damping connection structure will go up shock attenuation pendulum, lower shock attenuation pendulum release, thereby obtain bigger displacement volume and corner volume, guarantee the safety of bridge, adjust fixedly through the attenuator, the utility model discloses it is convenient to change, the maintenance of being convenient for.
Claims (10)
1. The utility model provides a shock insulation support is subtracted to attenuator formula friction pendulum, includes shock attenuation bed plate (10) and is located last bedplate (1) of shock attenuation bed plate (10) top, its characterized in that: go up bedplate (1) lower extreme and be provided with gliding spherical crown welt (3), vibration damping mount plate (10) upper end is provided with gliding combination pendulum (6), combination pendulum (6) upper end slides with spherical crown welt (3) lower extreme contact, combination pendulum (6) outer wall department is provided with carries out fixed damping connection structure (8) to it, damping connection structure (8) are destroyed the back, form interior sliding surface in combination pendulum (6).
2. The damper type friction pendulum seismic mitigation and isolation bearing of claim 1, wherein: the combined spherical pendulum (6) comprises an upper damping spherical pendulum (6.1) matched with the spherical crown lining plate (3) and a lower damping spherical pendulum (6.2) matched with the damping base plate (10), and the damping connecting structure (8) fixes the upper damping spherical pendulum (6.1) and the lower damping spherical pendulum (6.2) as a whole.
3. The damper type friction pendulum seismic mitigation and isolation bearing of claim 2, wherein: the damping connecting structure (8) comprises a damper (8.1), an upper screw rod (8.4) is arranged on one side of the damper (8.1), and the upper screw rod (8.4) is fixed with an upper damping pendulum (6.1).
4. The damper type friction pendulum seismic mitigation and isolation bearing of claim 3, wherein: a through hole is formed in the lower damping pendulum (6.2), and a lower bolt (8.2) penetrates through the through hole and is screwed into the damper (8.1).
5. The damper type friction pendulum seismic mitigation and isolation bearing of claim 4, wherein: an installation platform is formed at the outer ring of the upper damping ball pendulum (6.1), and the upper screw (8.4) penetrates through the installation platform and then is screwed with a nut (8.5) for limiting and fixing.
6. The damper type friction pendulum seismic mitigation and isolation bearing of claim 5, wherein: an inclined assembly part is formed at the outer ring of the lower damping ball pendulum (6.2), the lower bolt (8.2) penetrates through the inclined assembly part, and a nut (8.3) of the lower bolt (8.2) is in contact with the lower plane of the inclined assembly part for limiting.
7. The damper type friction pendulum seismic mitigation and isolation bearing of claim 6, wherein: the damping connecting structure (8) is arranged obliquely, and the included angle between the axis of the damping connecting structure (8) and the horizontal plane is an acute angle.
8. The damper type friction pendulum seismic mitigation and isolation bearing of claim 7, wherein: the damping connecting structures (8) are uniformly distributed in the circumferential direction of the combined spherical pendulum (6).
9. The damper type friction pendulum seismic mitigation and isolation bearing of claim 8, wherein: the upper damping pendulum (6.1) and the lower damping pendulum (6.2) are in upper arc surface contact, and a middle damping sliding plate (7) is arranged between the upper damping pendulum (6.1) and the lower damping pendulum (6.2).
10. The damper type friction pendulum seismic mitigation and isolation bearing of claim 9, wherein: go up shock attenuation pendulum (6.1) lateral wall department and form mounting groove (6.3), the cross-section of going up screw rod (8.4) is the strip, goes up the narrow part of screw rod (8.4) and rotates the chucking after through mounting groove (6.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120056316.8U CN214459591U (en) | 2021-01-11 | 2021-01-11 | Damper type friction pendulum vibration reduction and isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120056316.8U CN214459591U (en) | 2021-01-11 | 2021-01-11 | Damper type friction pendulum vibration reduction and isolation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214459591U true CN214459591U (en) | 2021-10-22 |
Family
ID=78138784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120056316.8U Active CN214459591U (en) | 2021-01-11 | 2021-01-11 | Damper type friction pendulum vibration reduction and isolation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214459591U (en) |
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2021
- 2021-01-11 CN CN202120056316.8U patent/CN214459591U/en active Active
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