CN217579738U - Hierarchical shock attenuation friction pendulum support that can restore fast - Google Patents
Hierarchical shock attenuation friction pendulum support that can restore fast Download PDFInfo
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- CN217579738U CN217579738U CN202221462687.7U CN202221462687U CN217579738U CN 217579738 U CN217579738 U CN 217579738U CN 202221462687 U CN202221462687 U CN 202221462687U CN 217579738 U CN217579738 U CN 217579738U
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- bedplate
- limiting block
- stopper
- friction pendulum
- pendulum support
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Abstract
The utility model discloses a hierarchical shock attenuation friction pendulum support that can restore fast, including last bedplate, lower bedplate, go up the bedplate and be equipped with the spherical crown welt down between the bedplate, wherein, the spherical crown welt is the curved surface with the contact surface of last bedplate, lower bedplate, it is equipped with the installation cavity to go up the bedplate bottom, can dismantle in the installation cavity to be connected with the second stopper that is located down the bedplate side, is connected with the first stopper that is used for restricting bedplate lateral displacement down on the second stopper, and second stopper side is equipped with the damping body that cushions that is located first stopper top. The utility model discloses can realize the quick restoration after the support shakes on the basis that increases damping, reduces the slip displacement and prevent falling the roof beam, avoid interrupting the influence that the traffic brought.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to hierarchical shock attenuation friction pendulum support that can restore fast.
Background
The bridge is used as a life line project, and has great significance in maintaining good earthquake resistance during earthquake and quick restoration capability after earthquake. Particularly in large earthquakes, traffic interruption is caused by the damage of the bridge in the earthquake, and the disaster relief work is seriously influenced. Then the structure subtracts the shock insulation, the bridge prevents that the roof beam that falls has obtained the key attention of engineering boundary, and subtracts shock insulation and prevent falling the roof beam support as a simple effectual equipment and be widely applied to in various infrastructure construction. The high-damping support, the lead core rubber support and the friction pendulum vibration reduction and isolation support are widely applied.
Among the conventional supports, the high-damping rubber support can limit the overlarge displacement of the structure, and the rubber has better resetting capability, but the energy consumption capability is limited, and the seismic mitigation and isolation effect on the structure is not obvious; the lead core rubber support has good durability, good low-cycle fatigue resistance, good acid resistance and water resistance, but the shearing performance of the support is greatly influenced by vertical load, and the restoring capability of the support is weakened along with the increase of the lead core, so that the support cannot effectively reduce and isolate shock in an earthquake with multi-spectrum effect; the friction pendulum seismic isolation support adopts a simple pendulum principle to carry out seismic isolation, has a good damping effect, but does not have the functions of preventing a beam from falling and quickly repairing after an earthquake. Hierarchical shock attenuation friction pendulum support has the effect that increases the damping, reduces sliding displacement and prevent falling the roof beam, nevertheless need change the support after the shake, need interrupt traffic, the construction degree of difficulty is big, with high costs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but quick prosthetic hierarchical shock attenuation friction pendulum support can realize the quick restoration after the support shakes on the basis that increases damping, reduces the slip displacement and prevent falling the roof beam, avoids interrupting the influence that the traffic brought.
In order to solve the technical problem, the utility model adopts the following scheme:
the utility model provides a hierarchical shock attenuation friction pendulum support that can restore fast, includes bedplate, lower bedplate, goes up the bedplate and is equipped with the spherical crown welt down between the bedplate, wherein, the spherical crown welt is the curved surface with the contact surface of last bedplate, lower bedplate, it is equipped with the installation cavity to go up the bedplate bottom, can dismantle in the installation cavity and be connected with the second stopper that is located bedplate side down, is connected with the first stopper that is used for restricting bedplate lateral displacement down on the second stopper, and second stopper side is equipped with the damping body that cushions that is located first stopper top.
Optionally, the first limiting block is transversely fixed at the lower end of the second limiting block, and one end of the first limiting block is close to the lower seat plate and is not in contact with the lower seat plate.
Optionally, the first limiting block and the second limiting block form an L-shaped mounting groove for mounting the damping buffer body, and the damping buffer body is fixed on the side wall of the second limiting block through a bolt or a pin.
Optionally, the plane of the lower end of the buffering damping body and the plane of the lower end of the second limiting block is lower than the plane of the top surface of the lower seat plate.
Optionally, the buffering damping body is a rubber pad or a spring or a polyurethane pad.
Optionally, the installation cavity and the second limiting block are both in an inverted L shape, and the second limiting block is connected with the inner wall of the installation cavity through a bolt.
Optionally, the top surface and the bottom surface of the spherical crown lining plate are both convex spherical surfaces, and the bottom surface of the upper seat plate and the top surface of the lower seat plate are provided with concave spherical surfaces matched with the convex spherical surfaces.
Optionally, a first wear-resistant layer matched with the convex spherical surface is embedded in the bottom surface of the spherical cap lining plate, and a second wear-resistant layer matched with the concave spherical surface is embedded in the top surface of the lower base plate.
The utility model discloses beneficial effect who has:
1. in the utility model, the normal use state of the support is ensured through the constraint of the first limiting block on the lower seat plate, and the support has the bearing and rotating capacity through the action of the spherical crown lining plate and is adapted to the displacement change of the bridge under the normal working condition; when an earthquake occurs, the first limiting block is cut off, and the support starts to rub and consume energy through the upper curved surface and the lower curved surface of the spherical cap lining plate; when the set displacement is reached, the buffer damping body prevents the structure from rigidly contacting and further consumes energy; and then the second limiting block plays a role in preventing the beam from falling.
After the earthquake state, the self-resetting function of the friction pendulum is utilized to restore the support to the original position, and the first limiting block connected with the bolt of the upper seat plate can ensure the quick repair of the support after the earthquake.
Drawings
FIG. 1 is a schematic view of a half-section structure of the present invention;
FIG. 2 is a schematic structural view of FIG. 1 without a second stopper mounted on one side thereof;
fig. 3 is a schematic structural view of fig. 1 without a cushion damper attached to one side thereof.
Reference numerals: 1-upper seat plate, 2-lower seat plate, 3-spherical crown lining plate, 4-first limiting block, 41-horizontal section, 42-vertical section, 5-second limiting block, 6-buffer damping body, 7-first wear-resistant layer, 8-second wear-resistant layer, 9-bolt, 10-installation cavity and 11-installation groove.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
The utility model provides a hierarchical shock attenuation friction pendulum support that can restore fast, includes bedplate 1, lower bedplate 2, is equipped with spherical crown welt 3 between bedplate 1 and the lower bedplate 2, wherein, spherical crown welt 3 and last bedplate 1, lower bedplate 2's contact surface are the curved surface, and it is shown to combine figure 2, 1 bottom surface of last bedplate is equipped with installation cavity 10, can dismantle in installation cavity 10 to be connected with the second stopper 4 that is located bedplate 2 side down, is connected with on the second stopper 4 to be used for restricting the first stopper 5 of bedplate 2 lateral displacement down, and 4 sides of second stopper are equipped with the damping body 6 that cushions that is located first stopper 5 top.
The first limiting block 5 is transversely fixed at the lower end of the second limiting block 4, and one end of the first limiting block 5 is close to the lower seat plate 2 and is not contacted with the lower seat plate.
Referring to fig. 3, the second limiting block 4 and the first limiting block 5 form an L-shaped mounting groove 11 for mounting the damping body 6, and the damping body 6 is fixed on the side wall of the second limiting block 4 through a bolt 9 or a pin.
The plane of the lower end of the buffering damping body 6 and the lower end of the second limiting block 4 is lower than the plane of the top surface of the lower seat plate 2. In practice, the buffering damping body 6 is a rubber pad which is in a rectangular block structure, the lower end of the second limiting block 4 is flush with the lower end face of the buffering damping body 6 and is positioned below the top face of the lower support plate but does not exceed the bottom face of the lower support plate, so that when the first limiting block 5 is sheared off, the buffering damping body 6 can be in contact with the lower support plate 2 during an earthquake, and rigid contact is avoided; after reaching the design displacement, second stopper 4 can ensure to play limit function to lower bedplate 2, avoids taking place the risk of falling the roof beam.
In the embodiment, as shown in fig. 1, the first limiting block 5 is transversely fixed at the lower end of the vertical section 42 of the second limiting block 4 through a bolt 9, the right end of the first limiting block 5 is close to and does not contact with the side wall of the lower seat plate 2, the damping buffer body 6 is fixed on the vertical section 42 of the second limiting block 4 through a bolt 9 or a pin, and the second limiting block 4 is fixed on the inner wall of the installation cavity 10 through a transverse and vertical bolt 9, so that the second limiting block 4, the first limiting block 5 and the damping buffer body 6 are connected with the upper seat plate 1 into a whole, and the bearing and rotation performance of a common support is exerted under a normal state, the first limiting block 5 is cut off under the action of an earthquake, and the support generates friction energy consumption; after the set positioning movement is achieved, the lower seat plate 2 is contacted with the buffering damping body 6, the lower seat plate 2 is prevented from being in rigid contact with the second limiting block 4, and the buffering damping body 6 also has certain energy consumption capacity; the limiting capacity of the second limiting block 4 is determined through design calculation, and when the earthquake stroke reaches a design value, the second limiting block 4 plays a limiting function and plays a role in preventing the beam from falling. When the full-bridge support all reaches maximum displacement, each mound undertakes earthquake action jointly, avoids the not enough of traditional anchor block hard resistance, realizes the theory of antidetonation in coordination.
The top surface and the bottom surface of the spherical crown lining plate 3 are both convex spherical surfaces, and the bottom surface of the upper seat plate 1 and the top surface of the lower seat plate 2 are provided with concave spherical surfaces matched with the convex spherical surfaces.
The bottom surface of the spherical crown lining plate 3 is embedded with a first wear-resistant layer 7 matched with the convex spherical surface, and the top surface of the lower seat plate 2 is embedded with a second wear-resistant layer 8 matched with the concave spherical surface. First wearing layer 7 is ascending convex spherical surface column structure, with 3 top surface phase-matchs of spherical crown welt, the embedding is at 3 top surfaces of spherical crown welt, second wearing layer 8 is decurrent convex spherical surface structure, with the concave spherical surface phase-match of 2 top surfaces of lower bedplate, the embedding is on the concave spherical surface of bedplate 2 down, two wearing layers all adopt polytetrafluoroethylene to make, have good wear resistance for between spherical crown welt 3 and the upper and lower bedplate contact surface at long-term rotation in-process difficult wearing and tearing, the life of support has been prolonged.
The principle of the utility model is as follows: under the normal working state, the first limiting block 5 resists horizontal load hard;
under the earthquake state, the connecting bolt 9 of the second limiting block 4 and the first limiting block 5 is sheared, the support releases a displacement space, single pendulum motion is generated under the action of the spherical crown lining plate 3, when the spherical crown lining plate swings to the maximum stroke, the lower seat plate 2 is contacted with the buffer damping body 6, the rigid contact of the first limiting block and the lower seat plate 2 is avoided, partial energy is absorbed, and then the second limiting block 4 plays a role of anti-falling Liang Gongneng;
after the earthquake state, the connecting bolt 9 of the first limit and the upper seat plate 1 is removed, and the second limit block 4 (comprising the buffer damping body 6 and the second limit block 4) is replaced. The support is restored to the original position, so that the support is ensured to be quickly repaired, and the influence caused by traffic interruption is avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a hierarchical shock attenuation friction pendulum support that can restore fast, includes bedplate (1), lower bedplate (2), is equipped with spherical crown welt (3) between bedplate (1) and lower bedplate (2), wherein, the contact surface of spherical crown welt (3) and last bedplate (1), lower bedplate (2) is the curved surface, its characterized in that, it is equipped with installation cavity (10) to go up bedplate (1) bottom surface, can dismantle in installation cavity (10) and be connected with second stopper (4) that are located bedplate (2) side down, is connected with first stopper (5) that are used for restricting bedplate (2) lateral displacement down on second stopper (4), and second stopper (4) side is equipped with the buffering damping body (6) that are located first stopper (5) top.
2. The stepped damping friction pendulum support capable of being rapidly repaired according to claim 1, wherein the first limiting block (5) is transversely fixed at the lower end of the second limiting block (4), and one end of the first limiting block (5) is close to and does not contact the lower seat plate (2).
3. The stepped damping friction pendulum support capable of being rapidly repaired according to claim 1, wherein the second limiting block (4) and the first limiting block (5) form an L-shaped mounting groove (11) for mounting the buffering damping body (6), and the buffering damping body (6) is fixed on the side wall of the second limiting block (4) through a bolt (9) or a pin.
4. The rapidly-repaired graded damping friction pendulum support according to claim 3, wherein the plane of the lower end of the damping body (6) and the lower end of the second limiting block (4) is lower than the plane of the top surface of the lower seat plate (2).
5. A rapidly repairable stepped damping friction pendulum support according to claim 4, characterized in that said damping body (6) is a rubber pad or a spring or a polyurethane pad.
6. The rapidly-repairable graded damping friction pendulum support according to claim 1, wherein the mounting cavity (10) and the second limiting block (4) are both in an inverted L shape, and the second limiting block (4) is connected with the inner wall of the mounting cavity (10) through a bolt (9).
7. The rapidly-repairable graded damping friction pendulum support according to claim 1, wherein the top and bottom surfaces of the spherical cap liner plate (3) are both convex spherical surfaces, and the bottom surface of the upper seat plate (1) and the top surface of the lower seat plate (2) are provided with concave spherical surfaces adapted to the convex spherical surfaces.
8. The stepped shock-absorbing friction pendulum support capable of being repaired quickly as claimed in claim 7, wherein the bottom surface of the spherical cap lining plate (3) is embedded with a first wear-resistant layer (7) matched with the convex spherical surface, and the top surface of the lower seat plate (2) is embedded with a second wear-resistant layer (8) matched with the concave spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221462687.7U CN217579738U (en) | 2022-06-13 | 2022-06-13 | Hierarchical shock attenuation friction pendulum support that can restore fast |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221462687.7U CN217579738U (en) | 2022-06-13 | 2022-06-13 | Hierarchical shock attenuation friction pendulum support that can restore fast |
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| CN217579738U true CN217579738U (en) | 2022-10-14 |
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| CN202221462687.7U Active CN217579738U (en) | 2022-06-13 | 2022-06-13 | Hierarchical shock attenuation friction pendulum support that can restore fast |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117488967A (en) * | 2023-09-27 | 2024-02-02 | 中国建筑第八工程局有限公司 | Building anti-seismic base structure |
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2022
- 2022-06-13 CN CN202221462687.7U patent/CN217579738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117488967A (en) * | 2023-09-27 | 2024-02-02 | 中国建筑第八工程局有限公司 | Building anti-seismic base structure |
| CN117488967B (en) * | 2023-09-27 | 2024-04-30 | 中国建筑第八工程局有限公司 | Building anti-seismic base structure |
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Address after: Unit M, Floor 11, Building 1, Wuyuanwan Operation Center, Huli District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen Road and Bridge Construction Group Engineering Co.,Ltd. Patentee after: Jitong Intelligent Equipment Co.,Ltd. Patentee after: Xiamen Gleason Road & Bridge Technology Co.,Ltd. Address before: Unit M, Floor 11, Building 1, Wuyuanwan Operation Center, Huli District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen Road and Bridge Construction Group Engineering Co.,Ltd. Patentee before: CHENGDU JITONG ROAD AND BRIDGE TECHNOLOGY CO.,LTD. Patentee before: Xiamen Gleason Road & Bridge Technology Co.,Ltd. |