CN113308986B - Trigger type displacement locking friction pendulum support - Google Patents
Trigger type displacement locking friction pendulum support Download PDFInfo
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- CN113308986B CN113308986B CN202110646080.8A CN202110646080A CN113308986B CN 113308986 B CN113308986 B CN 113308986B CN 202110646080 A CN202110646080 A CN 202110646080A CN 113308986 B CN113308986 B CN 113308986B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000009471 action Effects 0.000 claims abstract description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- E01D19/042—Mechanical bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a trigger type displacement locking friction pendulum support, which comprises an upper ball panel, a double-spherical sliding block, a lower ball panel, a plane sliding plate, a limiting steel ring and a shear pin unit, wherein the upper ball panel is provided with a plurality of sliding blocks; an upper spherical friction pair is formed between the upper spherical panel and the double-spherical sliding block, a lower spherical friction pair is formed between the double-spherical sliding block and the lower spherical panel, and a plane friction pair is formed between the lower spherical panel and the plane sliding plate; the upper ball panel, the double-spherical sliding block and the lower spherical plate jointly form a friction pendulum unit, and a positioning module matched with the lower end of the shear pin unit is arranged on the plane sliding plate; the shear pin unit is sheared under the action of the earthquake, so that the shear pin unit falls down until the shear pin unit is limited in the positioning module. Compared with the prior art, the support is in plane sliding under the normal use condition, the shear pin is sheared under an earthquake, the plane friction pair is triggered to lock, the friction pendulum unit works, the structure is simple, the force transmission is reliable, the maintenance and the maintenance are convenient after the earthquake, and the device is suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a trigger type displacement locking friction pendulum support.
Background
The friction pendulum support has the advantages of high vertical bearing capacity, obvious energy consumption effect, strong self-resetting capability, adaptability to large displacement, large rotation angle and the like, and is widely applied to the seismic isolation and reduction design of highway bridges, railway bridges and urban rail transit bridges. In the bridge, in consideration of maintenance and driving comfort of the bridge, the bridge is often manufactured into an ultra-long continuous bridge by reducing the use of expansion joints in bridge design so as to improve bearing capacity and driving comfort and reduce bridge maintenance cost; for large-span arch bridges, cable-stayed bridges and suspension bridges, the span of the structure is larger. Under the action of temperature, the telescopic displacement of the beam body is larger, if a conventional friction pendulum support is adopted, the beam body at the support is lifted vertically to cause the bridge head to jump and even the train to derail, and the application of the friction pendulum support is challenged.
The existing industry standard JT/T852-2013 of highway bridge friction pendulum type seismic reduction and isolation support provides a friction pendulum support with three sliding surfaces, only the planar sliding surfaces slide under normal use conditions, the planar sliding surfaces and the spherical sliding surfaces work together, and although the overlarge vertical lifting of the support under the action of temperature is relieved, a section of idle stroke appears in the support structure, particularly in long-joint large-span bridges, the longitudinal idle stroke of the support is larger, so that the expected seismic reduction and isolation effect cannot be achieved.
In addition, in order to realize that the earthquake lower support is smoothly converted from planar sliding to single pendulum movement, a combined system of a speed locking device and a friction pendulum support is proposed, but the conventional fluid type speed locking device has a large size and is difficult to attach to the support; mechanical speed lock devices are complex in construction and long-term reliability is questionable.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the trigger type displacement locking friction pendulum support which is suitable for long-connected long-span bridges, has the advantages of simple structure, reliable force transmission and good damping effect, and is convenient for post-earthquake maintenance.
The aim of the invention can be achieved by the following technical scheme:
the technical scheme aims to provide the trigger type displacement locking friction pendulum support which comprises an upper ball panel, a double-spherical-surface sliding block, a lower ball panel, a plane sliding plate, a limiting steel ring and a shear pin unit;
An upper spherical friction pair is formed between the upper spherical panel and the double-spherical sliding block, a lower spherical friction pair is formed between the double-spherical sliding block and the lower spherical panel, and a plane friction pair is formed between the lower spherical panel and the plane sliding plate;
The upper spherical panel, the double-spherical sliding block and the lower spherical plate jointly form a friction pendulum unit, the limiting steel ring is fixed on the lower spherical panel through the shear pin unit, and the inner side of the limiting steel ring forms a limit on the annular side of the double-spherical sliding block, so that the horizontal displacement among the upper spherical plate, the double-spherical sliding block and the lower spherical plate is limited;
The positioning module matched with the lower end of the shear pin unit is arranged on the plane sliding plate, the shear pin unit is sheared under the action of an earthquake, the shear pin unit falls down until the shear pin unit is limited in the positioning module, and the friction pendulum unit is converted into single pendulum motion from plane sliding.
Further, mounting holes are formed in the lower ball panel in an array mode, and the shear pin units are arranged on the mounting holes.
Further, a cover plate mounting groove is formed above the mounting hole.
Further, the shear pin unit comprises a shear pin, a shear pin cover plate, a nut and a gasket;
The upper end of the shear pin is provided with threads;
the shear pin cover plate is arranged in the cover plate mounting groove;
the lower extreme of shear pin is limited to be located in the mounting hole, the upper end of shear pin runs through in proper order shear pin apron and spacing steel ring to realize spacing through nut, the gasket of spacing steel ring upper surface.
Further, the shear pin unit further comprises a spring, the shear pin comprises a rod body and a cylinder body, the diameter of the cylinder body is larger than that of the rod body, the spring is sleeved on the rod body in a penetrating mode, one end of the spring abuts against the end portion of the cylinder body, and the other end of the spring abuts against the lower surface of the shear pin cover plate.
Further, shear pin holes and bolt holes are formed in the shear pin cover plate in an array mode, the shear pin holes are matched with rod bodies of the shear pins, and the bolt holes are used for fastening limiting of the shear pin cover plate on the lower ball panel.
Further, an annular V-shaped groove is formed in the middle of the rod body of the shear pin, and the annular V-shaped groove is located at the junction of the limiting steel ring and the lower spherical plate.
Further, the positioning module comprises a transverse limiting groove formed in the planar sliding plate and a longitudinal limiting hole formed in the transverse limiting groove, and the longitudinal limiting hole can be in clearance fit with the column body of the shear pin.
As an implementation mode of the technical scheme, limit baffles are arranged on two sides of the planar sliding plate, and side friction pairs are formed by the side wall surfaces of the limit baffles and the side wall surfaces of the lower ball panel, so that the lower ball panel and the planar sliding plate form unidirectional horizontal sliding.
As another implementation mode of the technical scheme, limit baffles are arranged on two sides of the plane sliding plate, a certain movable gap is formed between the side wall surface of the limit baffle and the side wall surface of the lower ball panel, and the lower ball panel and the plane sliding plate form bidirectional horizontal sliding.
Compared with the prior art, the invention has the following technical advantages: through setting up the shear pin unit, realized under the normal service condition that the support is the plane slip, shear the pin under the earthquake and cut off, trigger the vice lock of plane friction and die, friction pendulum unit work, this technical scheme simple structure simultaneously, it is reliable to pass power, post-earthquake maintenance easy maintenance is fit for promoting and using.
Drawings
FIG. 1 is a cross-sectional view of a unidirectional cradle or holder in a fixed orientation in the present solution;
FIG. 2 is a cross-sectional view of the bidirectional movable support in the transverse bridge direction in the technical scheme;
FIG. 3 is an isometric view of a planar skateboard in the present embodiment;
FIG. 4 is an isometric view of a shear pin unit in the present technique;
FIG. 5 is an isometric view of a shear pin cover plate in the present technique;
fig. 6 is an isometric view of a limiting steel ring in the present solution.
Reference numerals in the drawings: the novel anti-shear device comprises a planar sliding plate 1, a planar friction pair 2, a lower spherical panel 3, a lower spherical friction pair 4, a bi-spherical sliding block 5, an upper spherical friction pair 6, an upper spherical panel 7, a limit baffle 8, a shear pin 9, a nut 10, a gasket 11, a limit steel ring 12, a spring 13, an annular V-shaped groove 14, a transverse limit groove 15, a longitudinal limit hole 16, a shear pin cover plate 17, a shear pin hole 18, a bolt hole 19 and a side friction pair 20.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
As shown in fig. 1, the triggered displacement locking friction pendulum support in this embodiment includes an upper ball panel 7, a bi-spherical slider 5, a lower ball panel 3, a planar slide plate 1, a spacing steel ring 12, and a shear pin unit.
An upper spherical friction pair 6 is formed between the upper spherical plate 7 and the double-spherical sliding block 5, a lower spherical friction pair 4 is formed between the double-spherical sliding block 5 and the lower spherical plate 3, and a plane friction pair 2 is formed between the lower spherical plate 3 and the plane sliding plate 1. The upper spherical plate 7, the double-spherical sliding block 5 and the lower spherical panel 3 jointly form a friction pendulum unit, the limiting steel ring 12 is fixed on the lower spherical panel 3 through a shear pin unit, and the inner side of the limiting steel ring 12 is limited to the annular side of the double-spherical sliding block 5, so that the horizontal displacement among the upper spherical plate 7, the double-spherical sliding block 5 and the lower spherical plate 3 is limited. The positioning module matched with the lower end of the shear pin unit is arranged on the plane sliding plate 1, the shear pin unit is sheared under the action of an earthquake, the shear pin unit falls down until being limited in the positioning module, and the friction pendulum unit is converted into single pendulum motion from plane sliding.
The lower spherical plate 3 is provided with mounting holes in an array manner, and the shear pin units are arranged on the mounting holes. A cover plate mounting groove is formed above the mounting hole.
In particular embodiments, the shear pin unit includes shear pins 9, shear pin cover plates 17, nuts 10, shims 11. The upper end of the shear pin 9 is provided with threads, the shear pin cover plate 17 is arranged in the cover plate mounting groove, the lower end of the shear pin 9 is limited in the mounting hole, the upper end of the shear pin 9 sequentially penetrates through the shear pin cover plate 17 and the limiting steel ring 12, see fig. 6, and limiting is achieved through a nut 10 and a gasket 11 on the upper surface of the limiting steel ring 12. The shear pin unit further comprises a spring 13, the shear pin 9 comprises a rod body and a cylinder body, the diameter of the cylinder body is larger than that of the rod body, the spring 13 is sleeved on the rod body in a penetrating mode, one end of the spring 13 abuts against the end portion of the cylinder body, and the other end of the spring 13 abuts against the lower surface of the shear pin cover plate 17. The shear pin cover plate 17 is provided with shear pin holes 18 and bolt holes 19 in an array manner, referring to fig. 5, the shear pin holes 18 are matched with the rod bodies of the shear pins 9, and the bolt holes 19 are used for fastening and limiting the shear pin cover plate 17 on the lower ball panel 3. The middle part of the rod body of the shear pin 9 is provided with an annular V-shaped groove 14, and referring to fig. 4, the annular V-shaped groove 14 is positioned at the junction of the limiting steel ring 12 and the lower spherical plate 3, so that the accurate control of the shearing breaking point is realized.
In specific implementation, the positioning module comprises a transverse limit groove 15 formed on the planar sliding plate 1 and a longitudinal limit hole 16 formed in the transverse limit groove 15, and referring to fig. 3, the longitudinal limit hole 16 can be in clearance fit with the column body of the shear pin 9.
In specific implementation, limit baffles 8 are arranged on two sides of the plane slide plate 1, and side friction pairs are formed by side wall surfaces of the limit baffles 8 and side wall surfaces of the lower spherical plate 3, so that the lower spherical plate 3 and the plane slide plate 1 form unidirectional horizontal sliding.
In particular embodiments, the spacing steel ring 12 is secured to the lower ball panel by a shear pin unit to limit the horizontal displacement of the friction pendulum unit during normal use. The plane slide plate 1 is provided with a transverse limit groove 15 and a longitudinal limit hole 16. The shear pin unit in the technical scheme comprises a shear pin 9, a shear pin cover plate 17, a spring 13, a nut 10 and a gasket 11.
In specific implementation, the shear pin 9 is a cylinder with a small diameter at the upper half section and a large diameter at the lower half section, the middle is provided with an annular V-shaped groove 14, the top end is provided with threads, and the upper half section is sleeved with a spring 13. The width of the transverse limit groove 15 is equal to the diameter of the longitudinal limit hole 16 and slightly larger than the diameter of the lower half of the shear pin 9. The diameter of the longitudinal limiting holes 16 is slightly larger than that of the lower half section of the shear pin 9, and the spacing of the longitudinal limiting holes 16 can be adjusted according to requirements. The upper half section of the shear pin 9 is a cylindrical rod body, and the lower half section can be a cylinder or a prism. The shear pins 9 are uniformly distributed on two sides of the support along the longitudinal direction of the bridge, and the diameter and the number of the shear pins can be selected according to the shearing force requirement of the support.
In the specific implementation, the friction coefficient and the curvature radius of the upper spherical friction pair and the lower spherical friction pair can be designed according to the needs.
In the implementation, the plane slide plate and shear pin unit is characterized in that the plane slide plate and shear pin unit can be arranged below the double-spherical-surface slide block, can be arranged above the double-spherical-surface slide block, and can be matched with the upper spherical surface plate 7 or the lower spherical surface plate 3.
During specific work, nuts are screwed under normal use conditions, springs are compressed, the lower section of the whole shear pin is arranged in the lower spherical panel, the annular V-shaped groove is positioned at the junction of the limiting steel ring and the lower spherical panel, the plane friction pair bears the displacement of the support caused by temperature action, concrete shrinkage creep and the like, and the friction pendulum unit bears the rotational deformation of the support. The shear force of the shear pin is achieved in the fixed direction of the unidirectional movable support or in the transverse bridge direction of the bidirectional movable support under the earthquake, the upper half section of the shear pin is sheared, the lower half section falls into the transverse limiting groove of the plane sliding plate under the action of the spring and the dead weight, and then slides into the longitudinal limiting hole along with longitudinal displacement, so that the sliding of the plane friction pair is limited, and the friction pendulum unit starts to work and bears the deformation of the earthquake lower support. In post-earthquake maintenance, only the shear pin cover plate is required to be opened, the lower half section of the shear pin is taken out, the shear pin is replaced again, and the beam body is pushed to the original position.
Example 2
In this embodiment, different from embodiment 1, two sides of the planar sliding plate 1 are provided with a limit baffle 8, and a certain movable gap is formed between the side wall surface of the limit baffle 8 and the side wall surface of the lower spherical plate 3, see fig. 2, so that the lower spherical plate 3 and the planar sliding plate 1 form bidirectional horizontal sliding.
Comparative example 1
In the prior art, CN203270446U discloses a friction pendulum damping and isolating support, which has the same function as a common support at ordinary times, namely, the load on the upper part of a bridge is uniformly transmitted to a lower structure, and the requirements of deformation of the upper structure caused by shrinkage creep, temperature change and the like can be met. The transverse plane friction pair between the upper support plate and the middle sliding block realizes the separation of temperature displacement and earthquake displacement, and avoids the problem that the traditional friction pendulum support generates larger secondary internal force inside the structure due to the lifting of the beam body caused by the temperature displacement, thereby reducing the damage to the bridge structure and prolonging the service life. Compared with the technical scheme, the technical scheme has the defects that the spherical friction pair fully plays a role only in the fixing direction of the plane friction pair, and a section of idle stroke exists in the moving direction of the plane friction pair, particularly in a long-joint large-span bridge, the longitudinal idle stroke of the support is larger, and the shock absorption and insulation effects of the support are affected.
Comparative example 2
CN212956112U discloses a conversion type friction pendulum vibration-damping and vibration-isolating support, which relates to the technical field of bridges, and comprises an upper support plate, a concave surface lining plate, a double-spherical surface body and a lower pendulum which are sequentially arranged from top to bottom, wherein plane sliding connection is arranged between the upper support plate and the concave surface lining plate, the upper spherical surface of the concave surface lining plate and the double-spherical surface body and between the lower spherical surface of the double-spherical surface body and the lower pendulum are respectively connected through spherical sliding connection, a shearing ring is sleeved below the concave surface lining plate, the shearing ring is connected to the lower pendulum through a shearing pin, and stop plates which are connected through a spring control mechanism and used for limiting the relative sliding of the upper support plate and the concave surface lining plate are respectively arranged on the left side and the right side of the upper side of the shearing ring. The technical scheme has the defects that when the displacement of the support under the action of shrinkage creep and temperature is large, the size of the stop plate is too large, so that the support is difficult to install and cannot be sprung normally in an earthquake, and therefore the support cannot be suitable for long-connected long-span bridges.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (5)
1. The triggering type displacement locking friction pendulum support is characterized by comprising an upper spherical plate (7), a double-spherical sliding block (5), a lower spherical plate (3), a plane sliding plate (1), a limiting steel ring (12) and a shear pin unit;
An upper spherical friction pair (6) is formed between the upper spherical plate (7) and the double-spherical sliding block (5), a lower spherical friction pair (4) is formed between the double-spherical sliding block (5) and the lower spherical plate (3), and a plane friction pair (2) is formed between the lower spherical plate (3) and the plane sliding plate (1);
The upper spherical plate (7), the double-spherical sliding block (5) and the lower spherical plate (3) jointly form a friction pendulum unit, the limiting steel ring (12) is fixed on the lower spherical plate (3) through the shear pin unit, and the inner side of the limiting steel ring (12) forms limiting on the annular side of the double-spherical sliding block (5), so that the horizontal displacement among the upper spherical plate (7), the double-spherical sliding block (5) and the lower spherical plate (3) is limited;
A positioning module matched with the lower end of the shear pin unit is arranged on the plane sliding plate (1), the shear pin unit is sheared under the action of an earthquake, so that the shear pin unit falls down until the shear pin unit is limited in the positioning module, and the friction pendulum unit is converted from plane sliding to single pendulum movement;
The lower ball panel (3) is provided with mounting holes in an array manner, and the shear pin units are arranged on the mounting holes;
a cover plate mounting groove is formed above the mounting hole;
The shear pin unit comprises a shear pin (9), a shear pin cover plate (17), a nut (10) and a gasket (11);
the upper end of the shear pin (9) is provided with threads;
The shear pin cover plate (17) is arranged in the cover plate mounting groove;
The lower end of the shear pin (9) is limited in the mounting hole, and the upper end of the shear pin (9) sequentially penetrates through the shear pin cover plate (17) and the limiting steel ring (12) and is mounted and fixed through a nut (10) and a gasket (11) on the upper surface of the limiting steel ring (12);
The shear pin unit further comprises a spring (13), the shear pin (9) comprises a rod body and a cylinder, the diameter of the cylinder is larger than that of the rod body, the spring (13) is sleeved on the rod body in a penetrating mode, one end of the spring (13) is abutted to the end portion of the cylinder, and the other end of the spring (13) is abutted to the lower surface of the shear pin cover plate (17);
The shear pin cover plate (17) is provided with shear pin holes (18) and bolt holes (19) in an array mode, the shear pin holes (18) are matched with rod bodies of the shear pins (9), and the bolt holes (19) are used for fastening limiting of the shear pin cover plate (17) on the lower ball panel (3).
2. The trigger type displacement locking friction pendulum support according to claim 1, wherein an annular V-shaped groove (14) is formed in the middle of the rod body of the shear pin (9), and the annular V-shaped groove (14) is located at the junction of the limiting steel ring (12) and the lower spherical plate (3).
3. The trigger type displacement locking friction pendulum support according to claim 1, wherein the positioning module comprises a transverse limiting groove (15) formed in the plane sliding plate (1) and a longitudinal limiting hole (16) formed in the transverse limiting groove (15), and the longitudinal limiting hole (16) can be in clearance fit with a column body of the shear pin (9).
4. The trigger type displacement locking friction pendulum support according to claim 1, wherein limit baffles (8) are arranged on two sides of the plane sliding plate (1), and side friction pairs are formed by side wall surfaces of the limit baffles (8) and side wall surfaces of the lower spherical plate (3) so that the lower spherical plate (3) and the plane sliding plate (1) form unidirectional horizontal sliding.
5. The trigger type displacement locking friction pendulum support according to claim 1, wherein limit baffles (8) are arranged on two sides of the plane sliding plate (1), and a certain movable gap is formed between the side wall surface of the limit baffles (8) and the side wall surface of the lower spherical plate (3), so that the lower spherical plate (3) and the plane sliding plate (1) form bidirectional horizontal sliding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646080.8A CN113308986B (en) | 2021-06-10 | 2021-06-10 | Trigger type displacement locking friction pendulum support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646080.8A CN113308986B (en) | 2021-06-10 | 2021-06-10 | Trigger type displacement locking friction pendulum support |
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| CN113308986A CN113308986A (en) | 2021-08-27 |
| CN113308986B true CN113308986B (en) | 2024-05-31 |
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| CN202110646080.8A Active CN113308986B (en) | 2021-06-10 | 2021-06-10 | Trigger type displacement locking friction pendulum support |
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| CN113981805B (en) * | 2021-11-08 | 2023-05-16 | 中铁二院工程集团有限责任公司 | Bridge end track slab transverse deformation resistant structure under earthquake action |
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| CN203782548U (en) * | 2014-01-26 | 2014-08-20 | 柳州东方工程橡胶制品有限公司 | Seismic mitigation and absorption spherical support of friction pendulum |
| CN106284061A (en) * | 2016-09-27 | 2017-01-04 | 成都市大通路桥机械有限公司 | A kind of change type friction pendulum damper bearing |
| CN210766362U (en) * | 2019-07-31 | 2020-06-16 | 成都市新筑路桥机械股份有限公司 | Novel friction pendulum support |
| CN212956112U (en) * | 2020-06-11 | 2021-04-13 | 成都市大通路桥机械有限公司 | Conversion type friction pendulum vibration reduction and isolation support |
| CN215482265U (en) * | 2021-06-10 | 2022-01-11 | 同济大学 | Trigger type displacement locking friction pendulum support |
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2021
- 2021-06-10 CN CN202110646080.8A patent/CN113308986B/en active Active
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| CN203782548U (en) * | 2014-01-26 | 2014-08-20 | 柳州东方工程橡胶制品有限公司 | Seismic mitigation and absorption spherical support of friction pendulum |
| CN106284061A (en) * | 2016-09-27 | 2017-01-04 | 成都市大通路桥机械有限公司 | A kind of change type friction pendulum damper bearing |
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