CN113757305A - Multidimensional earthquake combined shock insulation support - Google Patents
Multidimensional earthquake combined shock insulation support Download PDFInfo
- Publication number
- CN113757305A CN113757305A CN202111042620.8A CN202111042620A CN113757305A CN 113757305 A CN113757305 A CN 113757305A CN 202111042620 A CN202111042620 A CN 202111042620A CN 113757305 A CN113757305 A CN 113757305A
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- mounting plate
- wire rope
- panel
- damper
- top mounting
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- 230000035939 shock Effects 0.000 title abstract description 11
- 238000009413 insulation Methods 0.000 title abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000000178 monomer Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 11
- 230000009467 reduction Effects 0.000 abstract description 11
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a multidimensional earthquake combined shock insulation support which comprises a support panel 1, wherein the support panel 1 is fixedly supported by at least four single vibration isolators 2, the support panel 1 is used for mounting post type electrical equipment 3, and the center position of the support panel 1 is used for mounting the post type electrical equipment 3. The single vibration isolator 2 comprises a bottom mounting plate 21, rubber steel wire rope dampers 22, a top mounting plate 23 and a viscous damper 24, wherein the middle of the bottom mounting plate 21 is provided with at least two rubber steel wire rope dampers 22 which are overlapped, the axial lead of each rubber steel wire rope damper 22 is coincided with the symmetry axis of the bottom mounting plate 21, the top mounting plate 23 is arranged above the uppermost rubber steel wire rope damper 22, and the viscous damper 24 is further connected between the top mounting plate 23 and the bottom mounting plate 21. The invention can meet the multidimensional seismic isolation and reduction requirements of ground input, solve the rotation effect of equipment under the action of earthquake, meet the requirement of equipment spacing and provide good multidimensional seismic isolation and reduction efficiency.
Description
Technical Field
The invention belongs to the technical field of seismic isolation and reduction of electrical equipment, and particularly relates to a multi-dimensional seismic combined seismic isolation support.
Background
As an important infrastructure related to national security and national economic life lines, an electric power system is required to perform reliable operation in a normal environment and maintain necessary functions when extreme disasters such as earthquakes occur. Therefore, the construction of resilient flexible power grids is becoming a national strategy for the development of governments.
In recent earthquake disasters, the pillar type electrical equipment in the transformer substation and the converter station has high earthquake vulnerability due to large height, high gravity center and low strength. From the perspective of electric power, a typical transformer substation includes a whole set of interconnected devices, such as transformers, circuit breakers, disconnectors, lightning arresters, current transformers, etc., and the pillar devices are the most common electrical devices of the transformer substation and are also the most common constituent parts of the transformer substation, and the safety and reliability of the pillar devices ensure the stable operation of the transformer substation. Electrical equipment in a transformer substation is generally connected with each other by adopting flexible buses, the equipment on two sides connected with the buses has different structural characteristics in an earthquake, so that the buses can be stretched or compressed, if the flexible buses among the equipment are not enough in looseness, the equipment on two sides can generate strong interaction due to the traction of the buses under the action of a strong earthquake, and the equipment can be damaged by the traction force of the buses on the equipment.
The traditional improvement of the earthquake resistance of the post equipment mainly focuses on strengthening the strength and rigidity of the structural components of the equipment, such as post insulators, so as to resist the earthquake action, and the earthquake resistance method also really obtains certain safety guarantee and certain results in past earthquake disasters, but for the post electrical equipment suffering from strong earthquakes, the equipment itself may not collapse, but the safety of other important and precise electrical elements in the equipment is difficult to guarantee, so that the equipment itself becomes a structural trunk shell losing basic functions. Compared with the method of directly increasing the section area or the material strength, the seismic isolation and reduction measures are effective methods for reducing the seismic action of the pillar type electrical equipment and improving the seismic performance of the equipment, and the seismic isolation and reduction device is arranged to firstly dissipate energy or consume energy under the seismic action and consume a large amount of seismic energy, so that the important main body electrical equipment only inputs a small amount of seismic energy, thereby not only avoiding the damage of the pillar type electrical equipment, but also protecting the normal operation of the basic functions of the electrical equipment under strong earthquakes.
In engineering practice, the rubber shock-isolation support is widely applied to equipment such as building bridges, and the equipment has strong normal section pressure on the shock-isolation support and allows the rubber shock-isolation support to have larger displacement deformation. Although these engineering experiences have proven the effectiveness of the rubber mount, it is not suitable for high-rise pillar-type electrical equipment and cannot meet the displacement distance requirements of the electrical equipment. In the field of electrical equipment, the friction pendulum support can be applied to the seismic isolation and reduction field of a large transformer, but the actual dynamic friction coefficient selection and the slip conditions lead the friction pendulum seismic isolation support to be difficult to meet the requirements of a small transformer or a strut type electrical equipment with light weight.
Above-mentioned, the wire rope attenuator, the spring damper, viscous damper, rubber shock insulation support and sliding friction pendulum shock insulation support these have all can't satisfy the shock insulation requirement that subtracts of pillar class electrical equipment, consequently, need research and development a neotype shock insulation support control top displacement response when alleviateing electrical equipment root stress response under the earthquake effect.
Disclosure of Invention
The invention aims to overcome the defect that the existing seismic isolation and reduction support cannot meet the seismic isolation and reduction requirements of pillar type electrical equipment, and provides a multi-dimensional seismic combination seismic isolation support.
The invention adopts the following technical scheme:
the utility model provides a multidimension earthquake combination isolation bearing which the key lies in: the support panel is fixedly supported by at least four single vibration isolators and is used for mounting post electrical equipment;
monomer isolator includes bottom mounting panel, rubber wire rope attenuator, top mounting panel, viscous damper, and wherein bottom mounting panel mid-mounting has two at least overlapping settings rubber wire rope attenuator, the axial lead of rubber wire rope attenuator with the dead in of the symmetry axis of bottom mounting panel sets up, the superiors install rubber wire rope attenuator top the top mounting panel, top mounting panel area is less than the bottom mounting panel, still be connected with the viscous damper between top mounting panel and the bottom mounting panel, viscous damper one end is connected on the lateral wall of top mounting panel, the other end is installed on the bottom mounting panel.
The effect of this scheme is: the rubber steel wire rope damper and the viscous damper are combined, so that the seismic isolation and reduction requirements of a multidimensional earthquake input from the ground can be met, the rotating effect of the strut equipment under the action of the earthquake can be solved, the displacement response of the equipment at the top of the structure is reduced, and the normal use interval requirement of the electrical equipment is met.
Preferably, the top mounting plate is of a polygonal plate structure, and at least 2 viscous dampers can be arranged on any side wall of the top mounting plate. The effect of this scheme is: the polygonal structure can meet the installation requirement of the bottom of equipment, and viscous dampers can be arranged in multiple directions, so that good anti-seismic performance is ensured.
As preferred scheme, the top mounting panel is the strip shaped plate, the top mounting panel is located be equipped with 3 on the lateral wall of rubber wire rope attenuator both sides respectively viscous damper, viscous damper upper end with the distance of rubber wire rope attenuator is less than viscous damper lower extreme with the distance of rubber wire rope attenuator. The effect of this scheme is: viscous dampers are symmetrically arranged, so that the anti-seismic performance is more stable.
Preferably, the support panel is of a circular plate structure, the support panel is fixedly supported by six annular and uniformly distributed single vibration isolators, and the center of the support panel is used for mounting the pillar type electrical equipment. The effect of this scheme is: a plurality of monomer isolator that the annular distributes fix the support panel jointly, and install pillar class electrical equipment in central point, can keep multidimension degree anti-seismic performance better.
As preferred scheme, the top mounting panel lateral wall with the bottom mounting panel corresponds respectively the viscous damper is equipped with the connection otic placode, the viscous damper both ends are installed respectively on the connection otic placode that corresponds. The effect of this scheme is: the deformation coordination of the steel wire rope damper and the viscous damper is ensured, the viscous damper is convenient to mount, and a good fixing effect is kept.
Has the advantages that: the multidimensional earthquake combined shock insulation support realizes the combination of the rubber steel wire rope damper and the viscous damper, can meet the shock insulation and reduction requirements of multidimensional earthquakes input on the ground, and can solve the problem of rotation effect of strut equipment under the action of earthquakes, so that the displacement response of equipment at the top of a structure is reduced, and the normal use interval requirement of electrical equipment is further met. When the earthquake on ground acts on a novel shock isolation support, the rubber steel wire rope damper and the viscous damper act together to reduce earthquake response, wherein the rubber steel wire rope damper has good nonlinear hysteretic characteristics and can reduce two horizontal directions and vertical earthquake action, and the existence of the viscous damper limits the relative motion of the upper plate and the lower plate of the support, so that the rotation of the upper structure along the support is reduced, the displacement of the top of the structure is finally reduced, and good multidimensional shock absorption and isolation efficiency is provided for pillar type electrical equipment.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment of the present invention;
fig. 2 is a simplified structural view of the one-piece vibration isolator 2.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
example (b): the utility model provides a multidimension earthquake combination isolation bearing, includes support panel 1, and this support panel 1 is by 2 fixed stay of at least four monomer isolator, and support panel 1 is used for erection column class electrical equipment 3, and the preferred support panel 1 of this embodiment is circular plate structure, and this support panel 1 is by 2 fixed stay of six annular evenly distributed's monomer isolator, and 1 central point of support panel puts and is used for erection column class electrical equipment 3.
As shown in fig. 2, the single vibration isolator 2 includes a bottom mounting plate 21, a rubber wire rope damper 22, a top mounting plate 23, and a viscous damper 24, wherein the middle of the bottom mounting plate 21 is provided with at least two rubber wire rope dampers 22 overlapped and set, the axis of the rubber wire rope damper 22 is overlapped and set with the symmetry axis of the bottom mounting plate 21, the top mounting plate 23 is installed above the uppermost rubber wire rope damper 22, the area of the top mounting plate 23 is smaller than that of the bottom mounting plate 21, the viscous damper 24 is further connected between the top mounting plate 23 and the bottom mounting plate 21, one end of the viscous damper 24 is connected to the side wall of the top mounting plate 23, and the other end of the viscous damper is installed on the bottom mounting plate 21.
In specific implementation, the top mounting plate 23 is a polygonal plate structure, and any side wall of the top mounting plate can be provided with at least 2 viscous dampers 24. In this embodiment, the top mounting plate 23 is taken as a strip-shaped plate as an example, the side walls of the top mounting plate 23 located at two sides of the rubber wire rope damper 22 are respectively provided with 3 viscous dampers 24, the distance between the upper end of each viscous damper 24 and the rubber wire rope damper 22 is smaller than the distance between the lower end of each viscous damper 24 and the rubber wire rope damper 22, the side walls of the top mounting plate 23 and the panel of the bottom mounting plate 21 are respectively provided with connecting ear plates 25 corresponding to the viscous dampers 24, and two ends of each viscous damper 24 are respectively mounted on the corresponding connecting ear plates. In addition, the plane arrangement mode of the rubber steel wire rope damper 22 can be arranged in the direction with the most adverse earthquake action according to the structural basic characteristics of the pillar type electric power equipment 3 so as to achieve the optimal earthquake reduction and isolation effect.
The installation steps of the multidimensional earthquake combined isolation bearing of the embodiment are as follows:
s1, carrying out leveling treatment on a concrete base for mounting the pillar type power equipment 3, selecting different numbers of bottom mounting plates 21 according to the characteristics of the pillar type power equipment 3 and the weak direction of earthquake action, and fixing the bottom mounting plates on the concrete base through bolts;
s2, respectively installing a specific number of rubber steel wire rope dampers 22 on each fixed bottom installation plate 21, and leveling in the horizontal direction;
and S3, arranging the top mounting plate 23 above the rubber steel wire rope damper 22, and adjusting the direction of the top mounting plate 23 according to different upper structures. Leveling the top mounting plate 23 after the mounting is finished;
s4, connecting the top mounting plate 23 with the bottom mounting plate 21 through the viscous damper 24, and adjusting the mounting angle of the viscous damper 24 according to different devices.
And S5, installing the support panel 1, leveling, and installing the support type electrical equipment 3.
When an earthquake occurs, the support panel 1 slides in the horizontal direction, the single vibration isolator 2 moves correspondingly to adapt to the displacement of the support panel 1 in the horizontal direction, and the rubber steel wire rope damper 22 and the viscous damper 24 are driven to move in the horizontal direction, so that the energy is consumed, and the earthquake action is reduced. When the pillar type power equipment 3 is bent and twisted, the top mounting plate 23 of each single vibration isolator 2 rotates, so that the single vibration isolators 2 at different positions are in a pulled or pressed state, the rubber wire rope dampers 22 connected in series can consume energy in the vertical direction, the effect of reducing vertical earthquakes is achieved, and the whole device achieves a multi-dimensional damping anti-seismic effect.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (5)
1. A multidimensional earthquake combined isolation bearing is characterized in that: the support structure comprises a support panel (1), wherein the support panel (1) is fixedly supported by at least four monomer vibration isolators (2), and the support panel (1) is used for mounting post electrical equipment (3);
the single vibration isolator (2) comprises a bottom mounting plate (21), a rubber steel wire rope damper (22), a top mounting plate (23) and a viscous damper (24), wherein the middle part of the bottom mounting plate (21) is provided with at least two rubber wire rope dampers (22) which are arranged in an overlapping way, the axis of the rubber steel wire rope damper (22) is coincident with the symmetry axis of the bottom mounting plate (21), the top mounting plate (23) is arranged above the rubber steel wire rope damper (22) on the uppermost layer, the top mounting plate (23) is smaller in area than the bottom mounting plate (21), a viscous damper (24) is also connected between the top mounting plate (23) and the bottom mounting plate (21), viscous damper (24) one end is connected on the lateral wall of top mounting panel (23), and the other end is installed on bottom mounting panel (21) panel.
2. The multi-dimensional seismic combined seismic isolation bearing of claim 1, wherein: the top mounting plate (23) is of a polygonal plate structure, and at least 2 viscous dampers (24) can be arranged on any side wall of the top mounting plate.
3. The multi-dimensional seismic combined isolation bearing of claim 2, wherein: top mounting panel (23) are the strip shaped plate, top mounting panel (23) are located be equipped with 3 on the lateral wall of rubber wire rope attenuator (22) both sides respectively viscous damper (24), viscous damper (24) upper end with the distance of rubber wire rope attenuator (22) is less than viscous damper (24) lower extreme with the distance of rubber wire rope attenuator (22).
4. A multi-dimensional seismic combination seismic isolation mount as claimed in any one of claims 1, 2 and 3, wherein: the support panel (1) is a circular plate structure, the support panel (1) is fixedly supported by six annular uniformly distributed single vibration isolators (2), and the center of the support panel (1) is used for mounting the pillar type electrical equipment (3).
5. The multi-dimensional seismic combined seismic isolation bearing of claim 4, wherein: top mounting panel (23) lateral wall with bottom mounting panel (21) panel corresponds respectively viscous damper (24) are equipped with connection otic placode (25), install respectively at viscous damper (24) both ends on the connection otic placode that corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042620.8A CN113757305A (en) | 2021-09-07 | 2021-09-07 | Multidimensional earthquake combined shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042620.8A CN113757305A (en) | 2021-09-07 | 2021-09-07 | Multidimensional earthquake combined shock insulation support |
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| Publication Number | Publication Date |
|---|---|
| CN113757305A true CN113757305A (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111042620.8A Pending CN113757305A (en) | 2021-09-07 | 2021-09-07 | Multidimensional earthquake combined shock insulation support |
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| CN (1) | CN113757305A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206189255U (en) * | 2016-10-18 | 2017-05-24 | 武汉东九永环工程技术有限公司 | Stacked hoop wire rope composite damping support |
| JP2017186860A (en) * | 2016-04-04 | 2017-10-12 | 大亦 絢一郎 | Long-period earthquake coping base-isolation building |
| CN107401313A (en) * | 2017-09-14 | 2017-11-28 | 华北理工大学 | Three-dimensional isolation resistance to deformation device and construction method |
| CN210739244U (en) * | 2019-10-30 | 2020-06-12 | 江苏力科丹普机械技术有限公司 | Combined type vibration isolation platform |
| CN112681862A (en) * | 2020-12-16 | 2021-04-20 | 国网甘肃省电力公司经济技术研究院 | Shock isolation device for power transmission tower base and mounting method thereof |
-
2021
- 2021-09-07 CN CN202111042620.8A patent/CN113757305A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017186860A (en) * | 2016-04-04 | 2017-10-12 | 大亦 絢一郎 | Long-period earthquake coping base-isolation building |
| CN206189255U (en) * | 2016-10-18 | 2017-05-24 | 武汉东九永环工程技术有限公司 | Stacked hoop wire rope composite damping support |
| CN107401313A (en) * | 2017-09-14 | 2017-11-28 | 华北理工大学 | Three-dimensional isolation resistance to deformation device and construction method |
| CN210739244U (en) * | 2019-10-30 | 2020-06-12 | 江苏力科丹普机械技术有限公司 | Combined type vibration isolation platform |
| CN112681862A (en) * | 2020-12-16 | 2021-04-20 | 国网甘肃省电力公司经济技术研究院 | Shock isolation device for power transmission tower base and mounting method thereof |
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Application publication date: 20211207 |
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| RJ01 | Rejection of invention patent application after publication |