CN112195764A - Self-resetting sliding rotary friction energy dissipation and shock absorption support - Google Patents
Self-resetting sliding rotary friction energy dissipation and shock absorption support Download PDFInfo
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- CN112195764A CN112195764A CN202011058959.2A CN202011058959A CN112195764A CN 112195764 A CN112195764 A CN 112195764A CN 202011058959 A CN202011058959 A CN 202011058959A CN 112195764 A CN112195764 A CN 112195764A
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- 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
- E01D19/041—Elastomeric bearings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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Abstract
The invention discloses a self-resetting sliding rotating type friction energy dissipation and shock absorption support which comprises an upper base, a lower base, an I-shaped steel plate, a first steel spring, a second steel spring, a friction cylinder ring, a friction layer, an annular sliding block, a wedge block, a movable plate and a cylindrical limiting block. When an earthquake occurs, the base can slide relatively in the circular groove inside the base, energy is consumed through sliding friction, and meanwhile, the structure can generate damping vibration to ensure that the structure is safer; the circular sliding block moves inwards to compress the movable plate when sliding, and the movable plate acts on the circular sliding block in turn to rotate and extend a relative sliding path, so that damping is increased, and energy consumption is better; the energy dissipation and shock absorption effects are good, the symmetrical structure is simple and reasonable, and the manufacture is convenient.
Description
Technical Field
The invention relates to the technical field of bridge seismic resistance, in particular to a self-resetting sliding rotating type friction energy dissipation and shock absorption support.
Background
With the rapid economic development of China, the infrastructure is developed rapidly, and more bridges are built. The bridge is easy to be damaged by earthquake due to the characteristic of large structural span, so that anti-seismic measures are very necessary to be taken for the bridge. The damping support is one of the most common measures in the existing anti-seismic method. At present, the common damping support is of two types, one is a rubber damping support, and the other is a friction damping support. The rubber shock insulation support has good shock insulation effect but low bearing capacity; the friction type shock insulation support has strong bearing capacity, but under the condition of high earthquake intensity, the situations of overlarge slippage and small friction area and energy consumption capacity easily occur.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention designs and develops a self-resetting sliding rotary type friction energy-consuming and damping support, which can provide a plurality of sliding friction surfaces and effectively increase the friction area through the rotation of the sliding block, so as to achieve further energy-consuming and damping in the event of an earthquake; meanwhile, the elastic force of the spring can achieve the effect of resetting after the spring slides and rotates.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a self-resetting sliding rotary type friction energy dissipation and shock absorption support comprises an upper base, a lower base, an I-shaped steel plate, a first steel spring, a second steel spring, a friction cylinder ring, a friction layer, an annular sliding block, a wedge block, a movable plate and a cylindrical limiting block;
the upper base is composed of a first bottom plate and first supports on two sides, the whole structure is square, and a first circular groove is formed in the lower portion of the first bottom plate; the lower base is composed of a second bottom plate and second supports on two sides, the whole structure is square, a second circular groove is formed in the lower portion of the second bottom plate, and a cylindrical limiting block is arranged at the circle center of the second circular groove; one side of the I-shaped steel plate is fixedly bolted on the first support of the upper base, and the other side of the I-shaped steel plate is fixedly bolted on the second support of the lower base so as to connect the upper base and the lower base;
one end of the first steel spring is fixedly connected to the inner wall of the first circular groove or the second circular groove, and the other end of the first steel spring is fixedly connected with the friction cylinder ring; the number of the first steel springs is 4, and the first steel springs are respectively arranged at 4 equal division points of a circle where the second circular groove is located; the circular sliding block is arranged in the friction cylinder ring, and wedge blocks are fixedly arranged at the top and the bottom of the inner surface of the circular sliding block;
and one end of the movable plate is fixedly hinged to the top and the bottom of the cylindrical limiting block, and the movable plate is connected with the cylindrical limiting block through a second steel spring.
The first bottom plate and the second bottom plate extend towards two sides to protrude out of the first support and the second support and are provided with bolt holes, and the bottom surfaces of the first support and the second support are provided with bolt holes for connecting I-shaped steel plates; the heights of the first circular groove and the second circular groove are not higher than the heights of the first support and the second support.
The height of the friction cylinder ring is consistent with the height of the first circular groove and the second circular groove.
The upper surface and the lower surface of the circular sliding block are provided with friction layers.
The length of the movable plate is such that the free end of the movable plate just contacts with the middle part of the plane of the wedge block; the top and the bottom of the movable plate and the second steel spring combined structure of the cylindrical limiting block are respectively provided with 4, and the positions of the movable plate and the second steel spring combined structure are uniformly distributed at 4 equal points of a circle where the cylindrical limiting block is located.
The top and the bottom of the inner wall of the circular sliding block are respectively provided with 8 wedges, and the positions of the wedges are uniformly distributed at 8 equal points of a circular ring in the circular sliding block; the plane of the wedge block is perpendicular to the inner wall of the circular sliding block, and the other surface of the wedge block is an arc-shaped curved surface.
The invention has the beneficial effects that:
1. the invention can realize the buffer effect on multi-directional impact force during earthquake, and reduce bridge damage; the first circular groove and the second circular groove are arranged at the first bottom plate and the second bottom plate, the first steel springs are arranged at 4 equal points on the inner walls of the two grooves, the first steel springs are connected with a friction cylinder ring, and a circular ring-shaped sliding block is arranged in the first steel springs;
2. the invention can effectively reduce and consume earthquake energy and reduce bridge damage; the circular sliding block is contacted with the friction cylinder ring to form a large-area friction surface, and the upper surface and the lower surface of the circular sliding block are respectively contacted with the upper base and the lower base to form a large-area friction surface, so that 4 friction surfaces are formed, and the multiple friction surfaces can effectively consume the seismic energy;
3. the invention can realize the rotation of the circular slider and further fully dissipate the seismic energy; the movable plates are arranged at the top and the bottom of the cylindrical limiting block, the second steel spring and the wedges at the top and the bottom of the circular sliding block jointly form a rotating mechanism, the circular sliding block moves inwards during sliding to compress the movable plates during earthquake, the movable plates act on the circular sliding block through the wedges in turn to enable the circular sliding block to rotate, the friction area of the circular sliding block is effectively increased, earthquake energy is further fully dissipated, damage is reduced, and the multidirectional wedges and the multidirectional movable plates are arranged to ensure that the circular sliding block can smoothly slide;
4. the invention can realize the self-resetting of the circular sliding block and the movable plate and consume energy; the first steel springs arranged in the circular groove in 4 directions can enable the circular sliding block to recover to an initial state after an earthquake, so that the circular sliding block is always kept at the center of the circular groove; the second steel spring below the movable plate can enable the movable plate to be restored to the initial state after the circular sliding block is reset; the first steel spring and the second steel spring can convert seismic energy into elastic potential energy, and further consume energy;
5. the invention has the structure of up-down symmetry, reasonable and simple structure and convenient manufacture;
6. the invention has the characteristics of low material price, convenient construction, energy saving, environmental protection, multiple functions and the like.
Drawings
FIG. 1 is a cross-sectional view showing the overall structure of a self-resetting sliding rotary type friction energy-consuming shock-absorbing support according to the present invention;
FIG. 2 is a top view of the main structure of the present invention with the upper base removed;
FIG. 3 is a schematic view of the internal structure of the second base plate according to the present invention;
FIG. 4 is a schematic structural diagram of a friction energy dissipation part according to the present invention;
FIG. 5 is a schematic view of the internal structure of the circular slider according to the present invention;
FIG. 6 is a schematic structural view of the upper base of the present invention;
FIG. 7 is a schematic view of the structure of the lower base of the present invention;
FIG. 8 is a schematic view of the wedge of the present invention;
FIG. 9 is a schematic structural view of the cylindrical limiting block, the bottom movable plate and the second steel spring according to the present invention;
fig. 10 is a schematic view of the overall three-dimensional structure of a self-resetting sliding rotary type friction energy-consuming damping support according to the present invention.
In the figure: 1. an upper base; 2. a lower base; 3. a first steel spring; 4. a friction cylinder ring; 5. a friction layer; 6. a circular slider; 7. a cylindrical limiting block; 8. a first circular groove; 9. a second circular groove; 10. an I-shaped steel plate; 11. a bolt; 12. a first base plate; 13. a second base plate; 14. a first support; 15. a second support; 16. a wedge block; 17. a movable plate; 18. a second steel spring.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example (b): see fig. 1-10.
A self-resetting sliding rotary type friction energy dissipation and shock absorption support comprises an upper base 1, a lower base 2, an I-shaped steel plate 10, a first steel spring 3, a second steel spring 18, a friction cylinder ring 4, a friction layer 5, an annular sliding block 6, a wedge block 16, a movable plate 17 and a cylindrical limiting block 7;
the upper base 1 consists of a first bottom plate 12 and first supports 14 on two sides, the whole structure is square, and a first circular groove 8 is formed in the lower part of the first bottom plate 12; the lower base 2 consists of a second bottom plate 13 and second supports 15 at two sides, the whole structure is square, a second circular groove 9 is arranged at the lower part of the second bottom plate 13, and a cylindrical limiting block 7 is arranged at the circle center of the second circular groove 9; one side of the I-shaped steel plate 10 is fixedly bolted on a first support 14 of the upper base 1, and the other side of the I-shaped steel plate is fixedly bolted on a second support 15 of the lower base 2 so as to connect the upper base 1 and the lower base 2;
one end of the first steel spring 3 is fixedly connected to the inner wall of the first circular groove 8 or the second circular groove 9, and the other end of the first steel spring is fixedly connected with the friction cylinder ring 4; the number of the first steel springs 3 is 4, and the first steel springs are respectively arranged at 4 equal division points of a circle where the second circular groove 9 is located; the circular ring-shaped sliding block 6 is arranged in the friction cylinder ring 4, and wedge blocks 16 are fixedly arranged at the top and the bottom of the inner surface of the circular ring-shaped sliding block;
one end of the movable plate 17 is fixedly hinged to the top and the bottom of the cylindrical limiting block 7, and the movable plate 17 is connected with the cylindrical limiting block 7 through a second steel spring 18.
The first base plate 12 and the second base plate 13 extend towards two sides to protrude a first support 14 and a second support 15 and are provided with bolt holes, and the bottom surfaces of the first support 14 and the second support 15 are provided with bolt holes for connecting the I-shaped steel plate 10; the heights of the first circular groove 8 and the second circular groove 9 are not higher than the heights of the first support 14 and the second support 15.
The height of the friction cylinder ring 4 is consistent with the height of the first circular groove 8 and the second circular groove 9.
The upper surface and the lower surface of the circular sliding block 6 are provided with friction layers 5.
The length of the movable plate 17 is such that the free end of the movable plate just contacts with the middle of the plane of the wedge block 16; the combined structure of the movable plate 17 and the second steel spring 18 is provided with 4 at the top and the bottom of the cylindrical limiting block 7 respectively, and the positions of the two are uniformly distributed at 4 equal division points of a circle where the cylindrical limiting block 7 is located.
The number of the wedge blocks 16 is 8 respectively arranged at the top and the bottom of the inner wall of the annular sliding block 6, and the positions of the wedge blocks are uniformly distributed at 8 equal division points of a circular ring in the annular sliding block 6; the plane of the wedge block 16 is perpendicular to the inner wall of the circular sliding block 6, and the other surface of the wedge block 16 is an arc-shaped curved surface.
The working principle of the self-resetting sliding rotary friction energy dissipation and shock absorption support is as follows: when no earthquake occurs, the first steel spring 3 and the second steel spring 18 are in an initial state without deformation, the circle centers of the friction cylinder ring 4 and the circular slider 6 are superposed with the circle centers of the circular grooves 8 and 9, the movable plate 17 is in an initial state, and the free end of the plate is positioned in the middle of the plane of the wedge block 16; when earthquake happens, the circular sliding block 6 slides under the impact from all directions, the impact force is decomposed by the stretching and the compression of the first steel springs 3 arranged on the walls of the first circular groove 8 and the second circular groove 9 in 4 directions, the impact force is buffered, the collision is effectively reduced, the bridge damage is reduced, the friction layers 5 on the upper surface and the lower surface of the circular sliding block 6 rub with the surfaces of the first circular groove 8 and the second circular groove 9 in the relative sliding process, the energy is consumed through the sliding friction, meanwhile, the circular sliding block 6 moves inwards to compress the movable plate 17, the movable plate 17 in turn acts on the circular sliding block 6 through the wedge block 16, the force couple is rotated, the sliding block 6 and the friction cylinder ring 4 generate the sliding friction, and the friction area of the circular sliding block 6 is effectively increased, the structure can generate damping vibration by further consuming energy, the amplitude near a resonance area is greatly reduced, the structure is safer, meanwhile, the first steel spring 3 and the second steel spring 18 in a tension and compression state can convert seismic energy into elastic potential energy, the energy is further consumed, the upper base 1 and the lower base 2 can be connected by the I-shaped steel plate 10, the upper base 1 and the lower base 2 are prevented from being separated during an earthquake, and the sliding block is prevented from falling; after an earthquake, the first steel springs 3 arranged in the circular grooves 8 and 9 in 4 directions can enable the circular sliding block 6 to be restored to an initial state, so that the circular sliding block is always kept at the centers of the circular grooves 8 and 9; the second steel spring 18 below the movable plate 17 can restore the movable plate 17 to the initial state after the circular sliding block 6 is reset.
It should be noted that: in the above description, the terms "left", "right", "front", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only. The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the contents of the present specification and the drawings, or applied to the related technical fields directly or indirectly, should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a slide rotary-type friction power consumption shock mount from restoring to throne which characterized in that: the device comprises an upper base (1), a lower base (2), an I-shaped steel plate (10), a first steel spring (3), a second steel spring (18), a friction cylinder ring (4), a friction layer (5), an annular sliding block (6), a wedge block (16), a movable plate (17) and a cylindrical limiting block (7);
the upper base (1) is composed of a first bottom plate (12) and first supports (14) on two sides, the whole structure is square, and a first circular groove (8) is formed in the lower portion of the first bottom plate (12); the lower base (2) is composed of a second bottom plate (13) and second supports (15) on two sides, the whole structure is square, a second circular groove (9) is formed in the lower portion of the second bottom plate (13), and a cylindrical limiting block (7) is arranged at the circle center of the second circular groove (9); one side of the I-shaped steel plate (10) is fixedly bolted to a first support (14) of the upper base (1), and the other side of the I-shaped steel plate is fixedly bolted to a second support (15) of the lower base (2) so as to connect the upper base (1) with the lower base (2);
one end of the first steel spring (3) is fixedly connected to the inner wall of the first circular groove (8) or the second circular groove (9), and the other end of the first steel spring is fixedly connected with the friction cylinder ring (4); the number of the first steel springs (3) is 4, and the first steel springs are respectively arranged at 4 equal division points of a circle where the second circular grooves (9) are located; the circular ring-shaped sliding block (6) is arranged in the friction cylinder ring (4), and wedge blocks (16) are fixedly arranged at the top and the bottom of the inner surface of the circular ring-shaped sliding block;
one end of the movable plate (17) is fixedly hinged to the top and the bottom of the cylindrical limiting block (7), and the movable plate (17) is connected with the cylindrical limiting block (7) through a second steel spring (18).
2. A self-resetting sliding rotary-type friction dissipative vibration damping mount as claimed in claim 1, wherein: the first base plate (12) and the second base plate (13) extend towards two sides to protrude out of the first support (14) and the second support (15) and are provided with bolt holes, and the bottom surfaces of the first support (14) and the second support (15) are provided with bolt holes for connecting the I-shaped steel plate (10); the heights of the first circular groove (8) and the second circular groove (9) are not higher than the heights of the first support (14) and the second support (15).
3. A self-resetting sliding rotary-type friction dissipative vibration damping mount as claimed in claim 1, wherein: the height of the friction cylinder ring (4) is consistent with the height of the first circular groove (8) and the second circular groove (9).
4. A self-resetting sliding rotary-type friction dissipative vibration damping mount as claimed in claim 1, wherein: the upper surface and the lower surface of the circular sliding block (6) are provided with friction layers (5).
5. A self-resetting sliding rotary-type friction dissipative vibration damping mount as claimed in claim 1, wherein: the length of the movable plate (17) is such that the free end of the movable plate just contacts with the middle part of the plane of the wedge block (16); the top and the bottom of the combined structure of the movable plate (17) and the second steel spring (18) are respectively provided with 4, and the positions of the combined structure are uniformly distributed at 4 equal points of a circle where the cylindrical limiting block (7) is located.
6. A self-resetting sliding rotary-type friction dissipative vibration damping mount as claimed in claim 1, wherein: the number of the wedges (16) is 8 respectively at the top and the bottom of the inner wall of the circular sliding block (6), and the positions of the wedges are uniformly distributed at 8 equal points of a circular ring in the circular sliding block (6); the plane of the wedge block (16) is perpendicular to the inner wall of the circular sliding block (6), and the other surface of the wedge block (16) is an arc-shaped curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058959.2A CN112195764A (en) | 2020-09-30 | 2020-09-30 | Self-resetting sliding rotary friction energy dissipation and shock absorption support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058959.2A CN112195764A (en) | 2020-09-30 | 2020-09-30 | Self-resetting sliding rotary friction energy dissipation and shock absorption support |
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| Publication Number | Publication Date |
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| CN112195764A true CN112195764A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011058959.2A Pending CN112195764A (en) | 2020-09-30 | 2020-09-30 | Self-resetting sliding rotary friction energy dissipation and shock absorption support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813811A (en) * | 2021-03-29 | 2021-05-18 | 江南大学 | Energy-consumption self-resetting bridge vibration isolation support with large-displacement rotating shaft |
| CN113062209A (en) * | 2021-03-29 | 2021-07-02 | 江南大学 | Prestressing force buffering power consumption bridge vibration isolation support |
-
2020
- 2020-09-30 CN CN202011058959.2A patent/CN112195764A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813811A (en) * | 2021-03-29 | 2021-05-18 | 江南大学 | Energy-consumption self-resetting bridge vibration isolation support with large-displacement rotating shaft |
| CN113062209A (en) * | 2021-03-29 | 2021-07-02 | 江南大学 | Prestressing force buffering power consumption bridge vibration isolation support |
| CN113062209B (en) * | 2021-03-29 | 2022-03-15 | 江南大学 | Prestressing force buffering power consumption bridge vibration isolation support |
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