CN110344320A - A kind of magnetic rheology elastic body bridge pad - Google Patents
A kind of magnetic rheology elastic body bridge pad Download PDFInfo
- Publication number
- CN110344320A CN110344320A CN201910629204.4A CN201910629204A CN110344320A CN 110344320 A CN110344320 A CN 110344320A CN 201910629204 A CN201910629204 A CN 201910629204A CN 110344320 A CN110344320 A CN 110344320A
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- CN
- China
- Prior art keywords
- elastic body
- rheology elastic
- magnetic rheology
- magnetic
- cover plate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of magnetic rheology elastic body bridge pad of the invention, comprising: support column and pedestal；Pedestal includes the magnetic rheology elastic body of steel cylinder, upper cover plate, lower cover plate and peripheral hardware electromagnetic coil, and lower cover plate is connect by bolt with bridge pier；Lower cover plate is equipped with multiple circular holes, is equipped with multiple cylinder grooves in magnetic rheology elastic body bottom, pier coping portion and circular hole corresponding position, sets spring stack in cylinder groove；Upper cover plate is equipped with through-hole, and the top opposing through-bores position of magnetic rheology elastic body is equipped with groove, and support column bottom is inserted into groove；Support column is equipped with acceleration transducer, control module and power module, bridge floor vibration acceleration, which is detected, by acceleration transducer feeds back to control module, when acceleration value is more than threshold value, control module controls power module to solenoid, applies magnetic field to magnetic rheology elastic body to adjust its damping and rigidity.Magnetic rheology elastic body is set in pedestal of the present invention, bridge pad is made to have sqouynd absorption lowering noise and vibration-damping function.The configuration of the present invention is simple, it is easy for construction.
Description
Technical field
The invention belongs to construction engineering technical fields, are related to a kind of magnetic rheology elastic body bridge pad.
Background technique
In the epoch of fast pace life, the trip of people is also developing progressively by pervious walking and is ridden instead of walk by the vehicles,
Such as automobile, train, aircraft, steamer.The a series of road such as corresponding highway, railway starts to occur, and is developing work
In journey gradually by land face development to aerial construction.In such a situa-tion, bridge beam action also all the more important, because
In the highway of long distance is built, often bridge is at this moment just needed to be connected to across places such as river, mountain valleys.It is built in bridge
If in, it is indispensable for the load-bearing of bridge that bridge pad, which is the important component of connection, constraint bridge up-down structure,
A part.Currently, railway, highway bridge support are usually fixed, because the support of fixed can bear horizontal loading
It is able to bear Vertical Load again.But since it is fixed form, for displacement, displacement is very small, and the bearing of beam
End can not be freely rotated, and be not allow for upwards any flexible putting vertically, and support is easy to that abrasion or cracking occurs,
It uses for a long time, support just has biggish damage.
Summary of the invention
The object of the present invention is to provide a kind of magnetic rheology elastic body bridge pads, to solve existing highway bridge support in vertical side
To cannot have it is flexible to achieve the purpose that vibration damping and be unable to sound-absorbing and noise-decreasing the problem of, once and support damage
Dismantle inconvenient problem.
The present invention provides a kind of magnetic rheology elastic body bridge pad, comprising: support column and pedestal, the pedestal include steel
Cylinder, upper cover plate, lower cover plate and the magnetic rheology elastic body being filled in steel cylinder for being sealed in the upper and lower tube port position of steel cylinder, it is described
Electromagnetic coil is arranged with outside magnetic rheology elastic body；The lower cover plate is fixedly connected by bolt with bridge pier, and lower cover plate is equipped with
Multiple circular holes are equipped with multiple cylinder grooves in the bottom of the magnetic rheology elastic body, the top of bridge pier and circular hole corresponding position, described
Spring stack is equipped in cylinder groove；The upper cover plate is equipped with through-hole, and the top of the magnetic rheology elastic body is set relative to lead to the hole site
Fluted, the support column bottom is inserted into the groove；The upper end of the support column is equipped with support plate, pacifies in the support plate
Equipped with acceleration transducer, control module and power module, bridge floor vibration acceleration is detected by acceleration transducer and is fed back to
Control module, when acceleration value is more than threshold value, control module controls power module to solenoid, to magnetorheological elasticity
Body applies magnetic field to adjust its damping and rigidity；
The magnetic rheology elastic body includes following components according to weight ratio: 100~150 parts of rubber matrix, magnetic-particle 600
~700 parts, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 120~180 parts of fill material, wherein fill material includes increasing
Mould 20~30 parts of agent, 30~50 parts of dispersing agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, 10~20 parts of cold-resistant agent；It is described
Binder is one of silicon carbide, graphene, carbon nanotube or silica；The reinforcing agent is fume colloidal silica.
In magnetic rheology elastic body bridge pad of the invention, the magnetic-particle selects micron order carbonyl iron dust and silicon steel
Powder, the two ratio are 25:1, select this magnetic-particle to improve magnetic permeability under the premise of guaranteeing saturation magnetization, reduce whirlpool
Stream loss.
In magnetic rheology elastic body bridge pad of the invention, the vulcanizing agent is selenium, tellurium, peroxide or sulphur；Sulphur
Change promotor is alkali metal oxide；The plasticizer is dimethicone；Dispersing agent is methyl anyl alcohol or polyurethane；Cold-resistant agent
For adipate ester.
In magnetic rheology elastic body bridge pad of the invention, the upper cover plate and lower cover plate are steel plate, and support column is
Steel column.
In magnetic rheology elastic body bridge pad of the invention, the spring stack is air rubber spring.
A kind of magnetic rheology elastic body bridge pad of the invention, at least has the advantages that
(1) bridge pad during installation, the only magnetic rheology elastic body that need to be prepared by mold, further around setting electromagnetic coil
After be placed in steel cylinder, by magnetic rheology elastic body apply magnetic field to adjust its rigidity and damping, make bridge pad have compared with
Good noise reduction and effectiveness in vibration suppression, so that the collapsing of bridge pad, splitting and the crack generated by uneven load action are reduced,
Damage when making up because of uneven settlement of foundation and larger bridge floor load to bridge pad.Furthermore overlapped using bolt for lower cover plate
Mode is connect with bridge pier, and the convenient disassembly among use process is conducive to the replacement of support and the maintenance of bridge pier.
(2) multiple air rubber springs are set between bridge pier and pedestal, and the vertical displacement of adjustment structure can effectively press down
The input of vertical motion wave processed is conducive to the non-retractable deficiency for making up hold-down support, reduces seat wear or cracking, and
And the vibration of bridge floor vehicle driving bring can be reduced.Bridge pad structure of the present invention is simple, convenient disassembly, and is added magnetorheological
Elastomer can be with sound-absorbing and noise-decreasing, and the effective vibration damping of energy avoids bridge pad and generates impaired phenomenon because of fatigue.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of magnetic rheology elastic body bridge pad of the invention.
Specific embodiment
As shown in Figure 1, a kind of magnetic rheology elastic body bridge pad of the invention, comprising: support column 1 and pedestal, the bottom
Seat includes steel cylinder 21, the upper cover plate 22 for being sealed in the upper and lower tube port position of steel cylinder 21, lower cover plate 23 and is filled in steel cylinder 21
Magnetic rheology elastic body 24.Electromagnetic coil 25 is arranged with outside the magnetic rheology elastic body 24.
The lower cover plate 23 is fixedly connected by bolt 3 with bridge pier 5, and lower cover plate 23 is equipped with multiple circular holes, in the magnetic
The bottom of magnetorheological elastomer 24, the top of bridge pier 5 and circular hole corresponding position are equipped with multiple cylinder grooves, are equipped with bullet in the cylinder groove
Spring column 4.
The upper cover plate 22 is equipped with through-hole, and the top of the magnetic rheology elastic body 24 is equipped with groove relative to lead to the hole site,
The bottom of the support column 1 is inserted into the groove.The upper end of the support column 1 is equipped with support plate 11, in the support plate 11
Acceleration transducer, control module and power module are installed, are not drawn into figure.Bridge floor vibration is detected by acceleration transducer
Accelerator feedback is to control module, and when acceleration value is more than threshold value, control module controls power module and supplies to electromagnetic coil 25
Electricity applies magnetic field to magnetic rheology elastic body 24 to adjust its damping and rigidity.
When it is implemented, the magnetic rheology elastic body includes following components according to weight ratio: 100~150 parts of rubber matrix,
600~700 parts of magnetic-particle, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 120~180 parts of fill material, wherein filling out
Filling material includes 20~30 parts of plasticizer, 30~50 parts of dispersing agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, cold-resistant agent
10~20 parts；The binder is one of silicon carbide, graphene, carbon nanotube or silica；The reinforcing agent is gas
Phase method white carbon black.
When it is implemented, the magnetic-particle selects micron order carbonyl iron dust and silicon-steel powder, the two ratio is 25:1, is selected
This magnetic-particle improves magnetic permeability under the premise of guaranteeing saturation magnetization, reduces eddy-current loss.
When it is implemented, the vulcanizing agent is selenium, tellurium, peroxide or sulphur；Vulcanization accelerator is alkali metal oxide；
The plasticizer is dimethicone；Dispersing agent is methyl anyl alcohol or polyurethane；Cold-resistant agent is adipate ester.
When it is implemented, the magnetic rheology elastic body is made of following method: by rubber matrix, magnetic-particle and institute
There is fill material to be put into rubber mixing machine, mechanical uniform stirs 20 minutes, then is placed in deaeration in vacuum barrel at 80 DEG C, then be injected into
Into aluminium-making mould；Vulcanizing agent and vulcanization accelerator are poured into mold and vulcanized 20 minutes or so at 150 DEG C, is applied at the same time
Adding magnetic induction intensity is that the magnetic field 0.4T prepares anisotropy magnetic rheology elastic body.
When it is implemented, the upper cover plate 22 and lower cover plate 23 are steel plate, support column 1 is steel column.The spring stack 4 is
Air rubber spring.Air rubber spring, which is made of rubber inside it, is filled with compressed air.When it is implemented, in the container of sealing
In be filled with compressed air, realize elastic reaction using gas compressibility, high-frequency vibration can be completely cut off and can sound insulation, noise reduction.
The magnetic rheology elastic body of setting peripheral hardware electromagnetic coil in the pedestal of bridge pad of the invention, can be by magnetorheological
Elastomer applies magnetic field to adjust its rigidity and damping, which has preferable noise reduction and effectiveness in vibration suppression.To reduce
Collapsing, splitting and the crack generated by uneven load action of bridge pad.Furthermore lower cover plate using bolt overlapped side
Formula is connect with bridge pier, and the convenient disassembly among use process is conducive to the replacement of support and the maintenance of bridge pier.
Multiple air rubber springs are set between bridge pier and pedestal, and the vertical displacement of adjustment structure can effectively inhibit
The input of vertical motion wave, and the vibration of bridge floor vehicle driving bring can be reduced.Bridge pad structure of the present invention is simple, tears open
It unloads conveniently, and magnetic rheology elastic body is added can be with sound-absorbing and noise-decreasing, the effective vibration damping of energy avoids bridge pad and generates because of fatigue
Impaired phenomenon.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of magnetic rheology elastic body bridge pad characterized by comprising support column and pedestal, the pedestal include steel cylinder,
It is sealed in the upper cover plate, lower cover plate and the magnetic rheology elastic body being filled in steel cylinder of the upper and lower tube port position of steel cylinder, the magnetic current
Become elastomeric outer and is arranged with electromagnetic coil；The lower cover plate is fixedly connected by bolt with bridge pier, and lower cover plate is equipped with multiple
Circular hole is equipped with multiple cylinder grooves, the cylinder in the bottom of the magnetic rheology elastic body, the top of bridge pier and circular hole corresponding position
Spring stack is equipped in slot；The upper cover plate is equipped with through-hole, and the top of the magnetic rheology elastic body is equipped with recessed relative to lead to the hole site
Slot, the support column bottom are inserted into the groove；The upper end of the support column is equipped with support plate, is equipped in the support plate
Acceleration transducer, control module and power module detect bridge floor vibration acceleration by acceleration transducer and feed back to control
Module, when acceleration value is more than threshold value, control module controls power module to solenoid, applies to magnetic rheology elastic body
Add magnetic field to adjust its damping and rigidity；
The magnetic rheology elastic body includes following components according to weight ratio: 100~150 parts of rubber matrix, magnetic-particle 600~
700 parts, 16~25 parts of vulcanizing agent, 4~5 parts of vulcanization accelerator, 120~180 parts of fill material, wherein fill material includes plasticising
20~30 parts of agent, 30~50 parts of dispersing agent, 50~60 parts of binder, 10~20 parts of reinforcing agent, 10~20 parts of cold-resistant agent；It is described viscous
Knot agent is one of silicon carbide, graphene, carbon nanotube or silica；The reinforcing agent is fume colloidal silica.
2. magnetic rheology elastic body bridge pad as described in claim 1, which is characterized in that the magnetic-particle selects micron order
Carbonyl iron dust and silicon-steel powder, the two ratio are 25:1, this magnetic-particle is selected to improve under the premise of guaranteeing saturation magnetization
Magnetic permeability reduces eddy-current loss.
3. magnetic rheology elastic body bridge pad as described in claim 1, which is characterized in that the vulcanizing agent is selenium, tellurium, peroxide
Compound or sulphur；Vulcanization accelerator is alkali metal oxide；The plasticizer is dimethicone；Dispersing agent be methyl anyl alcohol or
Polyurethane；Cold-resistant agent is adipate ester.
4. magnetic rheology elastic body bridge pad as described in claim 1, which is characterized in that the upper cover plate and lower cover plate are
Steel plate, support column are steel column.
5. magnetic rheology elastic body bridge pad as described in claim 1, which is characterized in that the spring stack is air rubber bullet
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629204.4A CN110344320B (en) | 2019-07-12 | 2019-07-12 | Magnetorheological elastomer bridge support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629204.4A CN110344320B (en) | 2019-07-12 | 2019-07-12 | Magnetorheological elastomer bridge support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110344320A true CN110344320A (en) | 2019-10-18 |
| CN110344320B CN110344320B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910629204.4A Active CN110344320B (en) | 2019-07-12 | 2019-07-12 | Magnetorheological elastomer bridge support |
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| Country | Link |
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| CN (1) | CN110344320B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761179A (en) * | 2019-11-15 | 2020-02-07 | 赵江涛 | Highway bridge pier anti-settlement device |
| CN111851280A (en) * | 2020-08-27 | 2020-10-30 | 张占群 | Shock absorption and isolation support for bridge |
| CN114196077A (en) * | 2021-12-28 | 2022-03-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Track pad raw material composition, track pad, manufacturing method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283230A (en) * | 1999-03-31 | 2000-10-13 | Kumagai Gumi Co Ltd | Base isolation device and base isolation structure |
| CN105485241A (en) * | 2015-12-31 | 2016-04-13 | 浙江科技学院 | Magnetorheological elastomer shock absorber |
| CN205576726U (en) * | 2016-04-26 | 2016-09-14 | 广东宇泰减震科技有限公司 | Steel bar reinforcing type damping rubber supporting seat |
| CN108727710A (en) * | 2018-06-05 | 2018-11-02 | 重庆大学 | Preparation method with high heat-resisting and tensile properties magnetic rheology elastic body |
| CN109899443A (en) * | 2019-04-15 | 2019-06-18 | 南京林业大学 | A kind of vibration absorber based on magnetic rheology elastic body |
| CN109972667A (en) * | 2019-03-20 | 2019-07-05 | 南京理工大学 | A kind of composite-structure magnetorheological elastomer negative stiffness isolator |
-
2019
- 2019-07-12 CN CN201910629204.4A patent/CN110344320B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283230A (en) * | 1999-03-31 | 2000-10-13 | Kumagai Gumi Co Ltd | Base isolation device and base isolation structure |
| CN105485241A (en) * | 2015-12-31 | 2016-04-13 | 浙江科技学院 | Magnetorheological elastomer shock absorber |
| CN205576726U (en) * | 2016-04-26 | 2016-09-14 | 广东宇泰减震科技有限公司 | Steel bar reinforcing type damping rubber supporting seat |
| CN108727710A (en) * | 2018-06-05 | 2018-11-02 | 重庆大学 | Preparation method with high heat-resisting and tensile properties magnetic rheology elastic body |
| CN109972667A (en) * | 2019-03-20 | 2019-07-05 | 南京理工大学 | A kind of composite-structure magnetorheological elastomer negative stiffness isolator |
| CN109899443A (en) * | 2019-04-15 | 2019-06-18 | 南京林业大学 | A kind of vibration absorber based on magnetic rheology elastic body |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761179A (en) * | 2019-11-15 | 2020-02-07 | 赵江涛 | Highway bridge pier anti-settlement device |
| CN111851280A (en) * | 2020-08-27 | 2020-10-30 | 张占群 | Shock absorption and isolation support for bridge |
| CN111851280B (en) * | 2020-08-27 | 2021-12-17 | 江苏润通工程设备有限公司 | Shock absorption and isolation support for bridge |
| CN114196077A (en) * | 2021-12-28 | 2022-03-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Track pad raw material composition, track pad, manufacturing method and application thereof |
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| CN110344320B (en) | 2021-09-03 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230404 Address after: 120-1 Hongrun Road, Yuhong District, Shenyang City, Liaoning Province, 110027 (1 gate) Patentee after: Liaoning Xinfu Siyuan Rubber and Plastic Products Co.,Ltd. Address before: 110168 No. 9 Hunnan East Road, Hunnan District, Shenyang City, Liaoning Province Patentee before: SHENYANG JIANZHU University |
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