CN212506862U - Assembled composite friction lead viscoelastic damper - Google Patents
Assembled composite friction lead viscoelastic damper Download PDFInfo
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- CN212506862U CN212506862U CN202020836452.4U CN202020836452U CN212506862U CN 212506862 U CN212506862 U CN 212506862U CN 202020836452 U CN202020836452 U CN 202020836452U CN 212506862 U CN212506862 U CN 212506862U
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- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 53
- 238000005192 partition Methods 0.000 claims abstract description 49
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 21
- 238000001125 extrusion Methods 0.000 abstract description 16
- 230000007246 mechanism Effects 0.000 abstract description 10
- 239000013013 elastic material Substances 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses an assembled composite friction lead viscoelastic damper, which comprises an upper connecting plate, a lower connecting plate and an internal energy dissipation structure, wherein the internal energy dissipation structure comprises a friction plate, an inner partition plate, a disc spring, a viscoelastic material and a lead block, a cylindrical through hole I is arranged in the middle of the inner partition plate, the lower end of the inner partition plate is fixedly connected with the lower connecting plate, the friction plate is arranged on two sides of the inner partition plate, one side of the friction plate is tightly attached to the inner partition plate, the other side of the friction plate is tightly attached to the upper connecting plate, the viscoelastic material is embedded in the middle inner side surface of the upper connecting plate, a cylindrical through hole II is arranged in the middle of the upper connecting plate, a cylindrical through hole III is arranged in the middle of the viscoelastic material, the lead block is embedded in a cylindrical cavity formed by the cylindrical through hole I, the cylindrical through hole II, the mechanism comprises friction energy consumption, lead core extrusion energy consumption and viscous elastic material hysteresis energy consumption, and improves the reliability of energy consumption under the earthquake.
Description
Technical Field
The utility model relates to a steel construction technical field, in particular to compound friction lead viscoelastic damper of assembled.
Background
In recent years, the assembly type structure is widely applied to industrial development due to the advantages of high production efficiency, convenience in assembly, environmental friendliness and the like. The energy dissipation and vibration reduction structure (passive vibration reduction device) is characterized in that an energy dissipation element is arranged in an assembly type steel structure, and earthquake energy is mainly dissipated by the energy dissipation element under an earthquake so as to achieve the purpose of protecting a main body component of the structure. Therefore, the energy dissipation and vibration reduction structure is widely applied to domestic and foreign building structures due to low manufacturing cost and good vibration reduction effect. At present, the main energy dissipation elements mainly comprise a displacement-related damper, a speed-related damper, a mass tuning damper and the like, the friction damper and the lead extrusion damper belong to the displacement-related damper, the viscoelastic damper is a passive speed-related energy dissipation device which generates damping through the shear deformation of a viscoelastic material, and the three characteristics are as follows:
the friction damper is mainly composed of a friction plate, a disc spring and a high-strength bolt. The energy consumption mechanism of the friction damper is as follows: the two friction plates of the damper produce relative displacement under the load transmitted by the structure, and the damper dissipates seismic energy through sliding friction. When the sliding force between the friction plates does not exceed the friction force, the two friction plates do not generate displacement, so the elastic rigidity of the friction damper is very high, and the energy consumption can be started when the displacement between the structural layers is very small (under small shock).
The lead extrusion damper consists of three parts, namely lead, an extrusion shaft and an outer sleeve. The energy consumption mechanism of the lead extrusion damper is as follows: under the action of earthquake or wind, the structural vibration is transmitted to the lead damper to push the extrusion shaft to reciprocate, and the lead in the sleeve generates plastic flow deformation to generate damping force and absorb and consume the energy input from the outside. The lead extrusion damper does not degrade over long periods of use, and therefore has a long service life and can function throughout the life of the structure.
The viscoelastic damper is composed of an external steel plate, an internal partition plate and a viscoelastic material in a lamination bonding mode. The action mechanism of the viscoelastic damper is as follows: the steel plate and the viscoelastic material are integrated through a vulcanization method, under the action of earthquake or wind, structural vibration is transmitted to the lead damper, and under the action of repeated axial force, the steel plate and the central steel plate are restrained to move relatively, so that the viscoelastic material generates reciprocating shearing deformation, and motion energy is dissipated in a heat absorption mode.
The friction damper, the lead extrusion damper and the viscoelastic damper are developed to work cooperatively to realize the self-adaptive energy consumption composite damper from small vibration to large vibration (ultra-large vibration) by combining the performance characteristics of the friction damper, the lead extrusion damper and the viscoelastic damper, and have very important practical significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above technical problem, the invention aims at providing a plumbous viscoelastic damper of compound friction, realizes friction damper and plumbous extrusion attenuator and viscoelastic damper collaborative work, compromises the performance advantage of three kinds of attenuators, solves single attenuator and is difficult to satisfy simultaneously and shakes the problem of big shake (the super large shake) can both be fine dissipation seismic energy from the xiao. In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plumbous viscoelastic attenuator of compound friction of assembled, includes upper junction plate, lower connecting plate and inside power consumption structure, its characterized in that: the internal energy dissipation structure comprises friction plates, inner partition plates, disc springs, viscoelastic materials and lead blocks, the viscoelastic materials and the upper connecting plate are two in number, a first cylindrical through hole is formed in the middle of each inner partition plate, the lower end of each inner partition plate is fixedly connected with the lower connecting plate, the friction plates are arranged on two sides of each inner partition plate, one side of each friction plate is tightly attached to the inner partition plate, the other side of each friction plate is tightly attached to the upper connecting plate, the viscoelastic materials are embedded into the middle inner side face of the upper connecting plate, a second cylindrical through hole is formed in the middle of each upper connecting plate, a third cylindrical through hole is formed in the middle of each viscoelastic material, the lead blocks are embedded into cylindrical cavities formed by the first cylindrical through hole, the second cylindrical through hole and the third cylindrical through hole, and the upper connecting plates.
Preferably, the lower end of the inner partition plate is fixedly connected with the lower connecting plate through welding.
Preferably, the number of the friction plates is four, two friction plates are arranged on the same side face respectively, the two friction plates are tightly attached to the upper end face and the lower end face of the viscoelastic material respectively, and the side face, far away from the upper connecting plate, of the viscoelastic material is tightly attached to the inner partition plate.
Preferably, the bolts are arranged in a vertically symmetrical mode, the disc springs are arranged at one ends of the bolts, and the number of the bolts and the number of the disc springs are two.
Preferably, the friction plate and the viscoelastic material have the same length in the radial direction of the bolt.
Preferably, the cross-sectional area of the friction plate in the radial direction of the bolt is equal to that of the upper connecting plate.
Preferably, the middle part of the friction plate is provided with a through hole IV with a rectangular cross section, the viscoelastic material is embedded in the through hole IV, the side surface of the viscoelastic material, which is far away from the upper connecting plate, is tightly attached to the inner partition plate, and the number of the friction plates is two.
Preferably, the bolts are symmetrically arranged around the circumference, the disc springs are arranged at one ends of the bolts, and the number of the bolts and the number of the disc springs are four.
Preferably, the length of the viscoelastic material (502) in the horizontal radial direction of the bolt (302) is less than the length of the through hole four in the horizontal radial direction of the bolt (302), and the length in the vertical radial direction of the bolt (302) is equal to the length of the through hole four in the vertical radial direction of the bolt (302).
The utility model discloses a technological effect and advantage:
1. the bearing capacity of the conventional friction damper depends on the pre-pressure provided by the disc spring, and a lead block extrusion and viscoelastic material hysteresis energy consumption mechanism is added on the premise of not influencing a friction energy consumption mechanism, so that the bearing capacity and the energy consumption capacity of the damper can be improved on the premise of not increasing the size of a product;
2. the energy dissipation mechanism is diversified, and comprises a friction energy dissipation mechanism, a lead core extrusion energy dissipation mechanism and a visco-elastic material hysteresis energy dissipation mechanism, so that the energy dissipation reliability of the damper under the earthquake is improved.
Drawings
Fig. 1 is a front view of a first embodiment of the present invention.
Fig. 2 is a right sectional view of the internal energy dissipation structure according to the first embodiment of the present invention.
Fig. 3 is a plan view of the first embodiment of the present invention.
Fig. 4 is a front view of a second embodiment of the present invention.
Fig. 5 is a right sectional view of an internal energy dissipation structure according to a second embodiment of the present invention.
Fig. 6 is a plan view of a second embodiment of the present invention.
In the figure: 101, 102, a friction plate, 2, an inner partition plate, 301, 302 bolts, 401,402, a disc spring, 501,502, a viscoelastic material, 6, a lead block 7, a lower connecting steel plate, 8 and an upper connecting steel plate
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a compound plumbous glutinous bullet attenuator of friction of assembled, including upper junction plate 8, lower junction plate 7 and internal energy consumption structure, internal energy consumption structure includes friction plate 101, inner baffle 2, dish spring 401, glutinous elastic material 501 and lead block 6, the quantity of glutinous elastic material 501 and upper junction plate 8 is two, inner baffle 2 middle part is equipped with cylindrical through-hole one, inner baffle 2 lower extreme and lower junction plate 7 fixed connection, inner baffle 2 both sides are equipped with friction plate 101, friction plate 101 one side closely laminates inner baffle 2, the opposite side closely laminates with upper junction plate 8, glutinous elastic material 501 inlays in the middle part medial surface of upper junction plate 8, upper junction plate 8 middle part is equipped with cylindrical through-hole two, glutinous elastic material 501 middle part is equipped with cylindrical through-hole three, lead block 6 inlays in cylindrical through-hole one, disc spring 401, The lead block 6 is fixed through a cavity structure, and the lead block 6 absorbs and consumes energy input from the outside through the inner partition plate 2.
The upper connecting plate 8, the friction plate 101 and the inner partition plate 2 are fixedly connected through bolts 301. The lower end of the inner partition plate 2 is fixedly connected with the lower connecting plate 7 through welding, and the strength of the connecting part is ensured to meet the design requirement.
The number of the friction plates 101 is four, two friction plates 101 are arranged on the same side face respectively, the two friction plates 101 are tightly attached to the upper end face and the lower end face of the viscoelastic material 501 respectively, the side face, far away from the upper connecting plate 8, of the viscoelastic material 501 is tightly attached to the inner partition plate 2, and the viscoelastic material 502 plays a role in assisting the friction plates 102 in energy consumption and plays a role in wrapping the lead block 6.
The friction plate 101 and the viscoelastic material 501 have the same length in the radial direction of the bolt 301, and the viscoelastic material 501 completely adheres to the upper and lower surfaces of the friction plate 101.
The utility model provides a lead glutinous bullet attenuator of compound friction of assembled, including upper junction plate 8, lower junction plate 7 and inside power consumption structure, its characterized in that as shown in fig. 4-6: the internal energy dissipation structure comprises a friction plate 102, an inner partition plate 2, a disc spring 402, a viscoelastic material 502 and a lead block 6, the quantity of the viscoelastic material 502 and an upper connecting plate 8 is two, a first cylindrical through hole is formed in the middle of the inner partition plate 2, the lower end of the inner partition plate 2 is fixedly connected with a lower connecting plate 7, the friction plate 102 is arranged on two sides of the inner partition plate 2, the inner partition plate 2 tightly attached to one side of the friction plate 102 is tightly attached to the other side of the inner partition plate 8, the viscoelastic material 502 is embedded in the middle inner side face of the upper connecting plate 8, a second cylindrical through hole is formed in the middle of the upper connecting plate 8, a third cylindrical through hole is formed in the middle of the viscoelastic material 502, the lead block 6 is embedded in the first cylindrical through hole, the second cylindrical through hole and a cylindrical cavity formed by the third cylindrical through hole.
The upper connecting plate 8, the friction plate 102 and the inner partition plate 2 are fixedly connected through a bolt 302, the cross sectional area of the friction plate 102 in the radial direction of the bolt 302 is equal to that of the upper connecting plate 8, and the lower end of the inner partition plate 2 is fixedly connected with the lower connecting plate 7 through welding.
The middle part of the friction plate 102 is provided with a through hole IV with a rectangular cross section, the viscoelastic material 502 is embedded in the through hole IV, the side surface of the viscoelastic material 502 far away from the upper connecting plate 8 is tightly attached to the inner partition plate 2, the number of the friction plates (102) is two, and the viscoelastic material 502 plays a role in assisting the friction plate 102 in energy consumption and plays a role in wrapping the lead block 6.
The length of the viscoelastic material 502 in the horizontal radial direction of the bolt 302 is smaller than the length of the through hole four in the horizontal radial direction of the bolt 302, the length in the vertical radial direction of the bolt 302 is equal to the length of the through hole four in the vertical radial direction of the bolt 302, a certain distance is kept between the viscoelastic material 502 and the friction plate 102, and effective displacement of the friction plate 102 in a stressed state is guaranteed.
This practical theory of operation:
in the first embodiment shown in fig. 1-3, when a wind load or a seismic load acts on the fabricated building, the building is subjected to a horizontal acting force, vibration occurs, the structure deforms, and the lower floor space begins to displace. The external force transmits the force generated by deformation to the inner partition plate 2 through the lower connecting plate 7, the inner partition plate 2 and the friction plate 101 generate relative displacement, the friction plate 101 is connected with the upper connecting plate 8, and the friction plate 101 generates sliding friction heat so as to consume energy; meanwhile, the viscoelastic material 501 and the upper connecting plate 8 are connected into a whole, and the upper connecting plate 8 and the inner partition plate 2 generate relative motion, so that the viscoelastic material 501 generates reciprocating shear deformation and dissipates motion energy in a heat absorption mode; the lead block material 6 is connected with the upper connecting plate 8 and penetrates through the inner partition plate 2, the horizontal structure vibration is transmitted to the lead block 6 through the inner partition plate 2 to push the lead block 6 and the inner partition plate 2 to do extrusion reciprocating motion, the lead block 6 generates plastic flow deformation along with the extrusion reciprocating motion to generate damping force, and meanwhile, the energy input from the outside is absorbed and consumed, at the moment, the friction plate 101 serves as a main energy consumption material, the viscoelastic material 501 and the lead block 6 serve as auxiliary energy consumption materials, and meanwhile, the viscoelastic material 501 plays a role in wrapping the lead block 6; when the horizontal vibration is too large, the viscoelastic material 501 and the lead block 6 are used as energy dissipation devices with the same main force, so that the energy dissipation effect under the condition of large vibration or strong vibration is guaranteed; the energy is weakened by the shock attenuation by a wide margin to reach shock attenuation antidetonation effect, upper junction plate 8 covers the power consumption structure, ensures that inside whole power transmission structure does not receive external disturbance, has strengthened assembled building's anti-wind, anti-seismic performance, makes assembled building reduce the vibration range better more swiftly under strong wind, the strong circumstances of shaking.
In the second embodiment shown in fig. 4-6, when wind load or earthquake load acts on the fabricated building, the building is subjected to horizontal acting force, vibration occurs, the structure is deformed, and the lower interlayer begins to displace. The external force transmits the force generated by deformation to the inner partition plate 2 through the lower connecting plate 7, the inner partition plate 2 and the friction plate 102 generate relative displacement, the friction plate 102 is connected with the upper connecting plate 8, the friction plate 102 generates sliding friction heat to consume energy, the viscoelastic connecting material 502 and the friction plate 102 keep a certain distance, and the effective displacement of the friction plate 102 in a stressed state is guaranteed; meanwhile, the viscoelastic connecting material 502 is connected with the upper connecting plate 8, and the upper connecting plate 8 and the inner partition plate 2 generate relative motion, so that the viscoelastic material 502 generates reciprocating shear deformation and dissipates motion energy in a heat absorption mode; the lead block material 6 is connected with the upper connecting plate 8 and penetrates through the inner partition plate 2, the horizontal structure vibration is transmitted to the lead block 6 through the inner partition plate 2 to push the lead block 6 and the inner partition plate 2 to do extrusion reciprocating motion, the lead block 6 generates plastic flow deformation along with the extrusion reciprocating motion, damping force is generated, and meanwhile, externally input energy is absorbed and consumed, at the moment, the friction plate 102 serves as a main energy consumption material, the viscoelastic material 502 and the lead block 6 serve as auxiliary energy consumption materials, and meanwhile, the viscoelastic material 502 plays a role in wrapping the lead block 6; when the horizontal vibration is too large, the viscoelastic material 502 and the lead block 6 are used as energy consumption devices with the same main force, so that the energy consumption effect under the condition of large vibration or strong vibration is ensured; the energy is weakened by shock-absorbing structure by a wide margin to reach shock-absorbing and anti-seismic's effect, upper junction plate 8 covers the power consumption structure, ensures that inside whole power transmission structure does not receive external interference, has strengthened assembled building's anti-wind, anti-seismic performance, makes assembled building reduce the vibration range better more swiftly under strong wind, the strong earthquake condition.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (9)
1. The utility model provides a plumbous viscoelastic attenuator of compound friction of assembled, includes upper junction plate (8), lower connecting plate (7) and inside power consumption structure, its characterized in that: the internal energy dissipation structure comprises friction plates (101, 102), inner partition plates (2), disc springs (401, 402), viscoelastic materials (501, 502) and a lead block (6), the number of the viscoelastic materials (501, 502) and the upper connecting plate (8) is two, a first cylindrical through hole is formed in the middle of each inner partition plate (2), the lower end of each inner partition plate (2) is fixedly connected with a lower connecting plate (7), the friction plates (101, 102) are arranged on two sides of each inner partition plate (2), one side of each friction plate (101, 102) is tightly attached to the inner partition plate (2), the other side of each friction plate is tightly attached to the upper connecting plate (8), the viscoelastic materials (501, 502) are embedded in the inner side face of the middle of each upper connecting plate (8), a second cylindrical through hole is formed in the middle of each upper connecting plate (8), and a third cylindrical through hole is formed in the middle of each viscoelastic material (501, 502), the lead block (6) is embedded in a cylindrical cavity formed by the first cylindrical through hole, the second cylindrical through hole and the third cylindrical through hole, and the upper connecting plate (8), the friction plates (101 and 102) and the inner partition plate (2) are fixedly connected through bolts (301 and 302).
2. The assembled composite friction lead viscoelastic damper as claimed in claim 1, wherein: the lower end of the inner partition plate (2) is fixedly connected with the lower connecting plate (7) through welding.
3. The assembled composite friction lead viscoelastic damper as claimed in claim 1, wherein: the number of the friction plates (101) is four, two friction plates (101) are arranged on the same side face respectively, the two friction plates (101) are tightly attached to the upper end face and the lower end face of the viscoelastic material (501) respectively, and the side face, far away from the upper connecting plate (8), of the viscoelastic material (501) is tightly attached to the inner partition plate (2).
4. The assembled composite friction lead viscoelastic damper as claimed in claim 3, wherein: the bolts (301) are arranged in an up-down symmetrical mode, the disc springs (401) are arranged at one ends of the bolts (301), and the number of the bolts (301) and the number of the disc springs (401) are two.
5. The assembled composite friction lead viscoelastic damper as claimed in claim 3, wherein: the lengths of the friction plate (101) and the viscoelastic material (501) along the radial direction of the bolt (301) are the same.
6. The assembled composite friction lead viscoelastic damper as claimed in claim 1, wherein: the cross sectional area of the friction plate (102) along the radial direction of the bolt (302) is equal to that of the upper connecting plate (8).
7. The assembled composite friction lead viscoelastic damper as claimed in claim 6, wherein: the middle of the friction plate (102) is provided with a through hole IV with a rectangular cross section, the viscoelastic material (502) is embedded in the through hole IV, the side face, far away from the upper connecting plate (8), of the viscoelastic material (502) is tightly attached to the inner partition plate (2), and the number of the friction plates (102) is two.
8. The assembled composite friction lead viscoelastic damper as claimed in claim 6, wherein: the bolts (302) are symmetrically arranged around, the disc springs (402) are arranged at one ends of the bolts (302), and the number of the bolts (302) and the number of the disc springs (402) are four.
9. The assembled composite friction lead viscoelastic damper as claimed in claim 6, wherein: the length of the viscoelastic material (502) in the horizontal radial direction of the bolt (302) is smaller than the length of the through hole four in the horizontal radial direction of the bolt (302), and the length in the vertical radial direction of the bolt (302) is equal to the length of the through hole four in the vertical radial direction of the bolt (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020836452.4U CN212506862U (en) | 2020-05-19 | 2020-05-19 | Assembled composite friction lead viscoelastic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020836452.4U CN212506862U (en) | 2020-05-19 | 2020-05-19 | Assembled composite friction lead viscoelastic damper |
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| Publication Number | Publication Date |
|---|---|
| CN212506862U true CN212506862U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020836452.4U Withdrawn - After Issue CN212506862U (en) | 2020-05-19 | 2020-05-19 | Assembled composite friction lead viscoelastic damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN212506862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519783A (en) * | 2020-05-19 | 2020-08-11 | 山东天元建设机械有限公司 | Assembled composite friction lead viscoelastic damper |
| CN114293675A (en) * | 2022-02-23 | 2022-04-08 | 兰州理工大学 | Friction-metal yield composite type graded damper |
-
2020
- 2020-05-19 CN CN202020836452.4U patent/CN212506862U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519783A (en) * | 2020-05-19 | 2020-08-11 | 山东天元建设机械有限公司 | Assembled composite friction lead viscoelastic damper |
| CN111519783B (en) * | 2020-05-19 | 2024-08-27 | 山东天元建设机械有限公司 | Assembled composite friction lead viscoelastic damper |
| CN114293675A (en) * | 2022-02-23 | 2022-04-08 | 兰州理工大学 | Friction-metal yield composite type graded damper |
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