CN220266891U - Electromagnetic friction pendulum shock insulation support - Google Patents
Electromagnetic friction pendulum shock insulation support Download PDFInfo
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- CN220266891U CN220266891U CN202322073803.7U CN202322073803U CN220266891U CN 220266891 U CN220266891 U CN 220266891U CN 202322073803 U CN202322073803 U CN 202322073803U CN 220266891 U CN220266891 U CN 220266891U
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- 230000035939 shock Effects 0.000 title description 11
- 238000009413 insulation Methods 0.000 title description 8
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 238000013016 damping Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses an electromagnetic friction pendulum vibration isolation support, which belongs to the technical field of vibration isolation supports and comprises a support component and an electromagnetic component; the support assembly comprises a lower support plate, a sliding block and an upper support plate from bottom to top, and the upper support plate is used for connecting an upper structure of a building; the electromagnetic assembly comprises a lower armature, a lower electromagnet group, an upper electromagnet group and an upper armature from bottom to top, wherein the lower armature is horizontally arranged on the outer side of the lower support plate in an annular shape, the lower armature is fixed on a building foundation structure, and the upper armature is positioned above the upper support plate; the lower electromagnet is arranged between the lower armature and the upper support plate, and the upper electromagnet is arranged between the upper armature and the upper support plate; the lower electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the bottom surface of the upper support plate, and the lower ends of the electromagnets are abutted against the upper surface of the lower armature; the upper electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the top surface of the upper support plate, and the upper ends of the electromagnets are propped against the bottom surface of the upper armature.
Description
Technical Field
The utility model belongs to the technical field of shock insulation supports, and particularly relates to an electromagnetic friction pendulum shock insulation support.
Background
Earthquake is a natural disaster with extremely strong destructive power, a large number of buildings collapse due to high intensity earthquake, and in order to reduce the harm of the earthquake to the buildings, an earthquake reduction and isolation device is generally arranged on the buildings so as to reduce the influence of the earthquake.
Shock absorption refers to reducing or isolating the impact on a building from seismic action. Damping control is the dissipation of seismic energy that has been input into a structural system by configuring certain mechanical devices at specific locations of the building structure to alter the dynamic characteristics of the structure. The basic principle of the earthquake isolation is that an earthquake isolation layer is arranged between a base structure and an upper structure, the energy consumption capacity of the earthquake isolation device is utilized to consume the energy input by the earthquake, the earthquake reaction of the structure is reduced, and the safety of the upper structure is effectively ensured. The vibration isolation support which is applied more at present mainly comprises a laminated rubber support and a friction pendulum support.
The laminated rubber support is a vibration isolation device widely applied to engineering structures such as bridges, buildings and the like. The vibration transmission between the structure and the foundation is reduced by utilizing the elastic characteristic of rubber, so that the effects of shock absorption and shock isolation are achieved. The design principle of the laminated rubber support is to laminate multiple layers of rubber materials together to form an integral structure. The purpose of this structural design is to increase the vertical and horizontal stiffness of the support to accommodate the requirements of different engineering structures. The principle of the friction pendulum support is to utilize the interaction of friction force and inertia force to enable a building or equipment to relatively displace under the action of earthquake or other external force, so that the influence of vibration is reduced or eliminated. The vibration isolation technology mainly comprises a vibration isolation support and a friction pendulum. The shock insulation support is an elastic element made of rubber, metal, steel bars and other materials, can bear the weight of a building or equipment, and has certain deformability. The shock-insulating support can reduce or eliminate its effect on the building or equipment when an earthquake or other external force acts on the building or equipment, thereby protecting the building or equipment from damage.
In recent years, with the development of the civil engineering industry, many novel seismic isolation and reduction methods are derived. The main principle of the friction pendulum vibration isolation support is to utilize the design of the sliding surface to prolong the vibration period of the structure so as to greatly reduce the amplification effect of the structure caused by the earthquake.
In addition, the purposes of consuming the seismic energy and reducing the seismic input can be achieved by utilizing the friction between the sliding surface of the friction pendulum vibration isolation support and the concave column. At present, the friction pendulum shock insulation also has the following problems: when a vertical earthquake occurs or the vertical excitation of the structure is large, the building structure has a certain vertical upward pulling force relative to the ground, so that the building is overturned or even collapses.
Chinese patent CN114775822a discloses a compound damping friction pendulum support of multistage frequency conversion electric vortex, including support roof and support bottom plate, the top at the support bottom plate is installed to the support roof, the lower surface of support roof and the equal symmetry of upper surface of support bottom plate are provided with multistage frequency conversion sliding surface, multistage frequency conversion sliding surface central point puts the department and is the plane, the radius of curvature of multistage frequency conversion sliding surface is progressively decreased step by step outward from the center, all be provided with the conductor board on the multistage frequency conversion sliding surface of support roof and support bottom plate, be equipped with the cavity between support roof and the support bottom plate, be provided with the damping piece in the cavity, electric permanent magnet and electric permanent magnet bottom plate, damping piece sliding connection is in the cavity, electric permanent magnet is fixed in the circumference of damping piece through electric permanent magnet bottom plate. According to the scheme, the vibration isolation performance of the friction pendulum support is improved by increasing electromagnetic force, but a common magnet is adopted, and the magnet fixing mode is unreasonable.
Disclosure of Invention
The utility model provides an electromagnetic friction pendulum vibration isolation support, and aims to solve the problem that a building is easy to topple because vertical tension cannot be provided when the conventional friction pendulum vibration isolation support is subjected to vertical earthquake.
Therefore, the utility model adopts the following technical scheme:
an electromagnetic friction pendulum vibration isolation support comprises a support component and an electromagnetic component;
the support assembly comprises a lower support plate, a sliding block and an upper support plate from bottom to top, wherein the lower support plate is horizontally fixed on a building foundation structure, the sliding block is arranged at a sliding curved surface of the upper surface of the lower support plate, and the upper support plate is positioned right above the lower support; the center of the lower surface of the upper support is provided with a concave sliding concave surface which is buckled on the sliding block; the upper support plate is used for connecting with a building superstructure;
the electromagnetic assembly comprises a lower armature, a lower electromagnet group, an upper electromagnet group and an upper armature from bottom to top, wherein the lower armature is horizontally arranged on the outer side of the lower support plate in an annular shape, the lower armature is fixed on a building foundation structure, and the upper armature is positioned above the upper support plate; the lower electromagnet is arranged between the lower armature and the upper support plate, and the upper electromagnet is arranged between the upper armature and the upper support plate; the lower electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the bottom surface of the upper support plate, and the lower ends of the electromagnets are abutted against the upper surface of the lower armature; the upper electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the top surface of the upper support plate, and the upper ends of the electromagnets are propped against the bottom surface of the upper armature.
Further, a plurality of vertical support columns are fixed at the outer edge of the bottom surface of the upper armature in the circumferential direction, and the lower ends of the support columns are abutted against or fixed on a building foundation structure.
Further, the electromagnets of the lower electromagnet group and the upper electromagnet group are all U-shaped electromagnets, and each U-shaped electromagnet is fixedly connected with the upper support plate through bolts.
Further, the top of U type electro-magnet is equipped with the fixed block, thereby is equipped with the spacing groove that is used for embedding fixed block fixed U type electro-magnet on the upper bracket board.
Further, the upper armature is annular, and the central round hole is used for connecting with a building superstructure.
Further, the limit clamping block is integrally formed at the outer edge of the lower support plate, a limit clamping groove corresponding to the limit clamping block is formed in the inner surface of the lower armature, and the limit clamping block is arranged in the limit clamping groove and used for increasing the connection firmness of the lower support plate and the lower armature.
The utility model has the beneficial effects that:
the U-shaped electromagnet fixed on the upper surface and the lower surface of the upper support plate is contacted with the upper armature, and the U-shaped electromagnet fixed on the lower surface of the upper support plate is contacted with the lower armature; the vertical force of building when overcoming the earthquake through vertical upward and vertical decurrent electromagnetic force, and then go up between seat board and the lower armature and go up between seat board and the upper armature through electromagnetic force and original friction pendulum support synergism in order to slow down the harm that the building caused because of the earthquake, and upper seat board lower extreme position sliding concave surface passes through spherical hinge with the slider and is connected, and the sliding surface sets up frictional contact with the slider on the lower seat board for the earthquake takes place to slide in time, produces sliding friction force, makes the vibrations of building slow down through electromagnetic friction pendulum shock insulation support.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a semi-sectional structure of the present utility model;
FIG. 3 is a schematic view of the structure of the lower seat plate, upper seat plate, sliding concave surface and lower armature of the present utility model;
FIG. 4 is a schematic diagram of an exploded construction of the present utility model;
FIG. 5 is a schematic diagram of the structure of the upper support plate and the U-shaped electromagnet in the utility model;
in the figure: 1. a lower support plate; 2. an upper support plate; 3. a sliding concave surface; 4. a lower armature; 5. a limit groove; 6. a U-shaped electromagnet; 7. an upper armature; 8. a support column; 9. a limit clamping block; 10. a limit clamping groove; 11. a sliding block.
Detailed Description
The utility model is further described with reference to the drawings and the specific embodiments below:
an electromagnetic friction pendulum vibration isolation support comprises a support component and an electromagnetic component. The support assembly comprises a lower support plate 1, an upper support plate 2 is arranged right above the lower support plate 1, a sliding concave surface 3 is arranged at the lower end position of the upper support plate 2, and a sliding block 11 is arranged between the sliding concave surface 3 and the sliding surface of the upper surface of the lower support plate 1.
The outside of lower bedplate 1 is fixed with down armature 4, is provided with armature 7 directly over upper bracket board 2, is fixed with U type electro-magnet 6 through the high strength bolt in the spacing groove 5 that upper and lower surface offered of upper bracket board 2, and U type electro-magnet 6 and the upper armature 7 contact of upper bracket board 2 upper surface. The lower surface of the upper armature 7 is provided with a supporting upright post 8 for supporting, the U-shaped electromagnet 6 on the lower surface of the upper support plate 2 is contacted with the lower armature 4, the U-shaped electromagnet 6 is connected with an external control system, and a round hole is formed in the middle of the upper armature 7.
In this embodiment, through the fixed U type electro-magnet 6 of upper and lower surface of upper bracket board 2, the fixed U type electro-magnet 6 of upper bracket board 2 upper surface contacts with upper armature 7 simultaneously, upper bracket board 2 lower surface fixed U type electro-magnet 6 contacts with lower armature 4, overcome the vertical force of building when the earthquake through vertical upwards and vertical decurrent electromagnetic force, and then between upper bracket board 2 and lower armature 4 and between upper bracket board 2 and upper armature 7 through electromagnetic force and original friction pendulum support synergism in order to slow down the harm that the building caused because of the earthquake, and upper bracket board 2 lower extreme slip concave surface 3 passes through slider 11 and is connected with lower bracket board 1 upper sliding surface, the sliding surface of lower bracket board 1 upper surface passes through slider 11 and upper bracket board 2 lower extreme slip concave surface laminating simultaneously, make the earthquake slide in time, produce sliding friction force, make the vibrations of building slow down through electromagnetic friction pendulum shock insulation support.
Specifically, the upper and lower surface mounting's of upper bracket board 2U type electro-magnet 6 all is provided with eight, and U type electro-magnet 6 annular array distributes.
Specifically, the U-shaped electromagnet 6 has a "U" -shaped structure.
Specifically, the outer edge integrated into one piece of lower support plate 1 has spacing fixture block 9, and spacing draw-in groove 10 has been seted up to the internal surface of lower armature 4, and spacing fixture block 9 installs in the inside of spacing draw-in groove 10 for increase the firm nature of lower support plate 1 and lower armature 4 connection.
Specifically, six limit clamping blocks 9 integrally formed at the edge of the lower support plate 1 are distributed at equal intervals, and limit clamping grooves 10 formed in the inner surface of the lower armature 4 are distributed at equal intervals.
Specifically, twelve support columns 8 mounted on the lower surface of the upper armature 7 are distributed at equal intervals.
The working principle and the using flow of the utility model are as follows: during construction, the lower armature 4 is fixed outside the lower support plate 1, at this time, the limit clamping block 9 integrally formed at the outer edge of the lower support plate 1 is installed in the limit clamping groove 10 formed on the inner surface of the lower armature 4, the upper support plate 2 is arranged right above the lower support plate 1, meanwhile, the sliding concave surface 3 at the lower end of the upper support plate 2 is contacted with the upper sliding surface of the lower support plate 1 through the sliding block 11, the U-shaped electromagnet 6 is installed in the limit groove 5 formed on the surface of the upper support plate 2, the upper armature 7 is placed right above the upper support plate 2, meanwhile, the upper armature 7 is supported by the supporting upright post 8, the upper support plate 2 is fixed with the bottom of a building, when an earthquake happens, the sliding concave surface 3 at the lower end of the upper support plate 2 relatively rotates, the sliding surface of the lower support plate 1 slides, the U-shaped electromagnet 6 is connected with an external control system, when the sliding block overcomes the static friction force, the displacement sensor detects that the upper support plate 2 is displaced, the control system is activated, the upper or lower electromagnet is electrified, the input current is controlled by the set control program, the input current is adjusted in real time, the damping program is adjusted between the U-shaped electromagnet 6 and the upper armature 7 and the upper support seat 6 are adjusted, and the damping structure is changed, accordingly, and the damping program is improved, and the damping performance is improved.
Claims (6)
1. An electromagnetic friction pendulum vibration isolation support is characterized by comprising a support component and an electromagnetic component;
the support assembly comprises a lower support plate (1), a sliding block (11) and an upper support plate (2) from bottom to top, wherein the lower support plate (1) is horizontally fixed on a building foundation structure, and the sliding block (11) is placed at a sliding curved surface of the upper surface of the lower support plate (1); the upper support plate (2) is positioned right above the lower support, the center of the lower surface of the upper support is provided with a concave sliding concave surface (3), and the sliding concave surface (3) is buckled on the sliding block (11); the upper support plate (2) is used for connecting with the building superstructure;
the electromagnetic assembly comprises a lower armature (4), a lower electromagnet group, an upper electromagnet group and an upper armature (7) from bottom to top, wherein the lower armature (4) is horizontally arranged on the outer side of the lower support plate (1) in a ring shape, the lower armature (4) is fixed on a building foundation structure, and the upper armature (7) is positioned above the upper support plate (2); the lower electromagnet group is arranged between the lower armature (4) and the upper support plate (2), and the upper electromagnet group is arranged between the upper armature (7) and the upper support plate (2); the lower electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the bottom surface of the upper support plate (2), and the lower ends of the electromagnets are abutted against the upper surface of the lower armature (4); the upper electromagnet group comprises a plurality of electromagnets, the electromagnets are annularly fixed on the top surface of the upper support plate (2), and the upper ends of the electromagnets are propped against the bottom surface of the upper armature (7).
2. An electromagnetic friction pendulum vibration isolation support according to claim 1, wherein a plurality of vertical support columns (8) are fixed on the outer edge of the bottom surface of the upper armature (7) along the circumferential direction, and the lower ends of the support columns (8) are abutted or fixed on a building foundation structure.
3. The electromagnetic friction pendulum vibration isolation support according to claim 1, wherein the electromagnets of the lower electromagnet group and the upper electromagnet group are all U-shaped electromagnets (6), and each U-shaped electromagnet (6) is fixedly connected with the upper support plate (2) through bolts.
4. An electromagnetic friction pendulum vibration isolation support according to claim 3, wherein the top end of the U-shaped electromagnet (6) is provided with a fixed block, and the upper support plate (2) is provided with a limit groove (5) for embedding the fixed block to fix the U-shaped electromagnet (6).
5. An electromagnetic friction pendulum vibration isolation mount according to claim 1, wherein the upper armature (7) is annular and a central circular aperture is provided for attachment to a building superstructure.
6. The electromagnetic friction pendulum vibration isolation support according to claim 1, wherein the outer edge of the lower support plate (1) is integrally formed with a limit clamping block (9), a limit clamping groove (10) corresponding to the limit clamping block (9) is formed in the inner surface of the lower armature (4), and the limit clamping block (9) is installed in the limit clamping groove (10) and used for increasing the connection firmness of the lower support plate (1) and the lower armature (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073803.7U CN220266891U (en) | 2023-08-03 | 2023-08-03 | Electromagnetic friction pendulum shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073803.7U CN220266891U (en) | 2023-08-03 | 2023-08-03 | Electromagnetic friction pendulum shock insulation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220266891U true CN220266891U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322073803.7U Active CN220266891U (en) | 2023-08-03 | 2023-08-03 | Electromagnetic friction pendulum shock insulation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220266891U (en) |
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2023
- 2023-08-03 CN CN202322073803.7U patent/CN220266891U/en active Active
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