CN105780930B - A kind of STF highly energy-consumings slip support abutment - Google Patents
A kind of STF highly energy-consumings slip support abutment Download PDFInfo
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- CN105780930B CN105780930B CN201610086440.2A CN201610086440A CN105780930B CN 105780930 B CN105780930 B CN 105780930B CN 201610086440 A CN201610086440 A CN 201610086440A CN 105780930 B CN105780930 B CN 105780930B
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- stf
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- steel plate
- upper junction
- hollow cylinder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a kind of STF highly energy-consumings slip support abutment, it includes upper junction plate, laminated steel plate post component, lower connecting plate and hollow cylinder, the upper junction plate is connected to form upper component with laminated steel plate post component, and the end face of the lower connecting plate and hollow cylinder connects to form lower member；The upper component cooperates with lower member, the laminated steel plate post component is located at the inside of the hollow cylinder；STF is filled with the space that the upper junction plate, hollow cylinder, lower connecting plate are formed with the laminated steel plate post component；Sliding friction material layer is provided between the hollow cylinder and upper junction plate.Using technical scheme; fully utilize the characteristic of friction material and STF shear thickening behavior; without outside energy input equipment, the advantages that simple in construction, small volume, lighter weight, cost are cheap and easy for construction, protected engineering structure is set to realize more preferable isolating affection.
Description
Technical field
The invention belongs to Civil Structrual Isolation technical field, more particularly to a kind of STF highly energy-consumings slip support abutment.
Background technology
Earthquake is one of major natural disasters of facing mankind, and by taking Wenchuan earthquake as an example, earthquake causes 69197 chances altogether
Difficulty, be missing 18209 people, 845,100,000,000 yuans of direct economic loss.Therefore, the seismic isolation technology of research engineering structure is that extremely have
It is necessary.
Shock isolating pedestal system is commonly divided into three classes：The first kind is laminated rubber bases vibration-isolating system, including rubber support
With lead core rubber support etc..This kind of bearing is to realize shock insulation by extending structure fundamental natural period of vibration, but is grown by earthquake
Resonance can not but avoid completely caused by periodic component, and the cost of this kind of bearing Seismic Isolation of Isolation Layer is higher.Second class is friction
Slip support abutment vibration-isolating system.The shock insulation ability and isolating affection of this kind of bearing depend on coefficient of friction, but due to sliding friction layer
Contact area is larger, and whole slide surface is it is difficult to ensure that level, so as to cause the discreteness of coefficient of friction larger.Simultaneously the system with
The difference of static and dynamic friction coefficient is relevant, when vibration velocity is continuously increased and frictional resistance reduces larger, it is possible to occurs negative firm
The phenomenon of degree, so as to not only cause Seismic Isolation of Isolation Layer slippage excessive, and it there may come a time when sliding unstability occur.3rd class is composite shock insulation
Support system, this kind of bearing are mainly the composition composite shock isolation system in parallel or series using rubber support and slip support abutment, should
System has played the advantages of two kinds of shock insulations.But this composite shock isolation system mechanical model is complicated, and the damping force provided has
Limit, especially near earthquake place long period and dfisplacement pulse effect under, engineering structure due to Seismic Isolation of Isolation Layer displacement it is larger and by
Destroy.
For traditional shock isolating pedestal to being asked by the seismic engineering structure control effect of nearly tomography long period is undesirable
Topic, many scholars propose that the rigidity of shock isolating pedestal and damping is adjusted using intellectual material, such as electrorheological elastomer, magnetic current
Become liquid, magnetic rheology elastic body and marmem etc..The characteristics of these intellectual materials one are common is exactly to need the external world
The input of energy can just cause the change of material property, and this change process needs the regular hour, even Millisecond rings
Should, geological process just causes serious damage to isolation structure.In addition, in order to ensure to provide foot to these intellectual materials
Enough outside energies, or produce enough induced conditions, this general volume of rubber earthquake isolation support being made up of a little intellectual materials
Larger, heavier mass, costly, complicated and radiating difficulty etc..
The content of the invention
For above technical problem, the invention discloses a kind of STF (Shear Thickening Fluid, shear thickening
Liquid) highly energy-consuming slip support abutment, the shear thickening behavior of the characteristic of friction material and STF is combined, it is defeated without outside energy
Enter equipment, the advantages that simple in construction, small volume, lighter weight, cost are cheap and easy for construction, make protected engineering knot
Structure realizes more preferable isolating affection.
On the other hand, the technical solution adopted by the present invention is：
A kind of STF highly energy-consumings slip support abutment, it includes upper junction plate, laminated steel plate post component, lower connecting plate and open tubular column
Body, the upper junction plate are connected to form upper component with laminated steel plate post component, the end face of the lower connecting plate and hollow cylinder
Connection forms lower member；The upper component cooperates with lower member, makes the laminated steel plate post component positioned at described
The inside of hollow cylinder；In the space that the upper junction plate, hollow cylinder, lower connecting plate are formed with the laminated steel plate post component
Filled with STF；Sliding friction material layer is provided between the hollow cylinder and upper junction plate.
STF is a kind of intellectual material of function admirable, and STF characteristics depend on its shear strain rate, bearing high strain-rate
During load, great variety occurs for the apparent viscosity of contact interface, or even by liquid phase be solid phase, i.e. generation shear thickening row
For now STF modulus of shearing is much larger than its initial modulus of shearing, and is in non-linear formula leaping development.When load cancels,
STF instantaneously can be changed into liquid phase by solid phase, i.e., this change is reversible.Therefore, using bearing made of STF without extraneous
In the case of energy input, just energy instantaneous nonlinearity increases its damping force to the vibration velocity according to bearing, so that protected
Engineering structure realizes isolating affection.In view of above-mentioned reason, the present inventor have made intensive studies to STF and slip support abutment, this case
Thus produce.
Using this technical scheme, the STF highly energy-consumings slip support abutment makes full use of the spy of sliding friction material and STF materials
Property, when seismic energy is little, is consumed energy by sliding friction material and reduce the energy that earthquake inputs to superstructure；In seismic energy
When measuring larger, such as near-fault ground motion, STF liquid is forced to be pressed through steel plate gap and produce sufficiently large damping force, so as to disappear
The energy of earthquake is consumed, reduces the energy of earthquake to the input of superstructure.The STF highly energy-consumings slip support abutment is without outside energy
Input, speed according to its vibration makes STF that shear thickening behavior occur, so as to for bearing provide enough dampings to consume ground
The energy of shake, while the column structure of bearing also limit the slide displacement of Seismic Isolation of Isolation Layer.Under severe earthquake action, upper junction plate passes through
Sliding friction material layer is slided, and then is driven connected laminated steel plate rod structure mobile and extruded STF and force its hair
Give birth to shear thickening behavior and produce huge damping force, so as to absorb the energy of earthquake.The lower connecting plate and hollow cylinder
The lower member that end face connects the protrusion rod structure to be formed limits superstructure on ground by lower connecting plate and basic fixation
The problem of earthquake centre slippage is excessive.
Preferably, the sliding friction material layer is stretched out in outside the hollow cylinder and upper junction plate.Using this technology
Scheme, the friction material layer for ensureing to fill between the hollow cylinder and upper junction plate cover all hollow cylinders and upper junction plate
Junction, realize more preferable isolating affection.
As a further improvement on the present invention, the junction of the upper junction plate and hollow cylinder is provided with STF seals.
As a further improvement on the present invention, the upper junction plate is fixedly connected with laminated steel plate post component and is integrated into one
Body.
As a further improvement on the present invention, the lower connecting plate is fixedly connected with cylinder becomes one.
As a further improvement on the present invention, the laminated steel plate post component includes multilayer steel plates and cylinder, the multilayer
Steel plate layer stackup adduction forms an entirety centered on cylinder, forms the laminated steel plate post component.
Wherein, spacing, steel plate and the lower connecting plate between the spacing between its steel plate of the multilayer, steel plate and upper junction plate
Between spacing it is equal or, the energy size of Main Basiss earthquake and design.
As a further improvement on the present invention, between the spacing between its steel plate of the multilayer, steel plate and upper junction plate
Spacing between spacing, steel plate and lower connecting plate is equal.
As a further improvement on the present invention, the laminated steel plate post component forms one by cylinder and the upper junction plate
Individual entirety.
As a further improvement on the present invention, between the multilayer steel plates, between steel plate and upper junction plate, steel plate and lower company
STF is filled between fishplate bar.That is STF wraps up whole laminated steel plate rod structure and riddled between steel plate and steel plate with connecting up and down
Between fishplate bar.
As a further improvement on the present invention, it is provided between the inwall of the hollow cylinder, the STF and upper junction plate
STF seals.
Compared with prior art, the invention has the advantages that：
First, compared with traditional shock isolating pedestal, technical scheme fully utilizes friction material and STF shearing
Thickening characteristic, protected engineering structure is set to realize isolating affection, its principle is to reduce earthquake motion spy using sliding friction material
Property to superstructure transmission, such as seismic shear and seismic acceleration, friction material coefficient selection should ensure that seismic energy compared with
Hour can fully absorb seismic energy；And larger Seismic Isolation of Isolation Layer horizontal displacement and structure lateral displacement then pass through the folded of upper junction plate
Layer pole structure extruding STF forces it to be flowed from the gap h between steel plate and between steel plate and upper and lower connecting plate, according to upper and lower
Relative velocity v between connecting plate, STF shear rate isWhen shear rate reaches, and shear thickening behavior condition occurs,
STF absorbs the energy of earthquake by shear thickening behavior, so that Seismic Isolation of Isolation Layer horizontal displacement and structure lateral displacement are limited.
Second, using technical scheme, the STF highly energy-consumings slip support abutment be beneficial to the lower connecting plate with it is hollow
The lower member that the end face of cylinder connects the protrusion rod structure to be formed is fixed by lower connecting plate and basis, there is provided support top
The vertical rigidity of component and the horizontal safety measure to slip, when seismic energy exceeds sliding friction material and STF absorbabilities
When, the level interval of lower member limits the overall movement of upper component, so as to ensure the STF highly energy-consumings slip support abutment
Horizontal displacement ensure that engineering structure safety in the range of related specifications permission.Therefore, present invention may apply to any
The geological process of situation, including nearly tomography long period earthquake and dfisplacement pulse etc..
3rd, compared with the intelligent shock-isolation bearing of active control, the STF in the present invention is also a kind of intellectual material, but only
Relevant with shear strain rate, under earthquake shock effect, STF can be thickened and increase its damping force and consumed energy moment, and be slid
Bearing is that coefficient of friction is smaller, and it is slided, and ability is stronger, and therefore, both can be very good to combine.
4th, the technical scheme is that a kind of passive control slip support abutment of highly energy-consuming, in the moment of geological process,
Bearing will produce corresponding response, in the absence of the intellectual material response time problem of active control, can more effectively protect master
Body structure.Furthermore the present invention is controlled controlling mechanism, therefore, without outside energy input equipment, also regardless of various correlations
The problem of equipment is present, such as leakage field, electric leakage, temperature sink etc..
5th, bearing of the invention has simple in construction, small volume, lighter weight, cost cheap and easy for construction
The advantages that.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is Fig. 1 A-A profile structure diagram.
Fig. 3 is Fig. 1 B-B cross-section structure diagram.
Embodiment
Below in conjunction with the accompanying drawings, the preferably embodiment of the present invention is described in further detail.
As shown in FIG. 1 to 3, a kind of STF highly energy-consumings slip support abutment, it includes upper junction plate 11, laminated steel plate post component
12nd, lower connecting plate 21 and hollow cylinder 22, the upper junction plate 11 is fixedly connected with laminated steel plate post component 12 to become one
Upper component 1 is formed, the lower connecting plate 21 is fixedly connected to become one to form protrusion post knot with the end face of hollow cylinder 22
The lower member 2 of structure；The upper component 1 cooperates with lower member 2, makes the laminated steel plate post component 12 positioned at described
The inside of hollow cylinder 22；The upper junction plate 11, hollow cylinder 22, lower connecting plate 21 and the laminated steel plate post component 12 it
Between be filled with STF 3 in the space that is formed；Sliding friction material layer 4 is provided between the hollow cylinder 22 and upper junction plate 11.
The upper junction plate 11 and the junction of hollow cylinder 22, the inwall of the hollow cylinder 22, the STF 3 and upper junction plate 11
Between be provided with STF seals 5.The laminated steel plate post component 12 includes multilayer steel plates 121 and cylinder 122, the multilayer steel plates
121 layer stackup adductions form an entirety centered on cylinder 122, form the laminated steel plate post component 12.The lamination steel
Sheet-pile component 12 is fixedly connected to form an entirety by cylinder 122 and the upper junction plate 11.Between the multilayer steel plates 121
Spacing, the spacing between steel plate 121 and upper junction plate 11, steel plate 121 it is equal with the spacing between lower connecting plate 21.It is described more
STF 3 is filled between layer steel plate 121, between steel plate 121 and upper junction plate 11, between steel plate 121 and lower connecting plate 21.
Under geological process, upper junction plate 11 is slided by sliding friction material layer 4, and then is driven and be connected thereto
Laminated steel plate post component 12 move and extrude STF 3, compel to bring it about shear thickening behavior and produce huge damping force, enter
And consume the energy of earthquake.On the other hand, described lower member 2 limits bearing by lower connecting plate 21 and basic fixation
The problem of slippage is excessive in earthquake；The slippage is set by lower member 2 and the distance of laminated steel plate rod structure 12
In the range of structure lateral displacement permission.In order to prevent the remaining slippage problems of too of structure after shaking, the energy of earthquake leads to
The damping force for crossing STF 3 is consumed, the big I of its damping force by set gap between steel plate 121, steel plate 121 with
The area in gap between gap, steel plate 121 and lower connecting plate 21 and steel plate 121 between upper junction plate 11 and obtain.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (7)
1. a kind of STF highly energy-consumings slip support abutment, STF are STF, it is characterised in that：Including upper junction plate, lamination steel
Sheet-pile component, lower connecting plate and hollow cylinder, the upper junction plate and laminated steel plate post component are connected the shape that becomes one
Into upper component, the end face of the lower connecting plate and hollow cylinder connects to form lower member；The upper component and bottom structure
Part cooperates, and the laminated steel plate post component is located at the inside of the hollow cylinder；The laminated steel plate post component includes
Multilayer steel plates and cylinder, the multilayer steel plates layer stackup adduction form an entirety centered on cylinder；The upper junction plate, sky
STF is filled with the space that stem body, lower connecting plate are formed with the laminated steel plate post component；The hollow cylinder and upper connection
Sliding friction material layer is provided between plate；When seismic energy is little, being consumed energy by sliding friction material layer, it is upward to reduce earthquake
The energy of portion's structure input；Under severe earthquake action, upper junction plate is slided by sliding friction material layer, so drive and its
The laminated steel plate rod structure of connection is mobile and extrudes STF and compels to bring it about shear thickening behavior and produce huge damping force, from
And absorb the energy of earthquake.
2. STF highly energy-consumings slip support abutment according to claim 1, it is characterised in that：The upper junction plate and hollow cylinder
Junction be provided with STF seals.
3. STF highly energy-consumings slip support abutment according to claim 2, it is characterised in that：The lower connecting plate and hollow cylinder
It is fixedly connected and becomes one.
4. STF highly energy-consumings slip support abutment according to claim 1, it is characterised in that：The laminated steel plate post component passes through
Cylinder forms an entirety with the upper junction plate.
5. STF highly energy-consumings slip support abutment according to claim 1, it is characterised in that：Between its steel plate of the multilayer steel plates
Spacing, the spacing between steel plate and upper junction plate, the spacing between steel plate and lower connecting plate it is equal.
6. STF highly energy-consumings slip support abutment according to claim 4, it is characterised in that：Between the multilayer steel plates, steel plate with
STF is filled between upper junction plate, between steel plate and lower connecting plate.
7. STF highly energy-consumings slip support abutment according to claim 4, it is characterised in that：It is the inwall of the hollow cylinder, described
STF seals are provided between STF and upper junction plate.
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| CN201610086440.2A CN105780930B (en) | 2016-02-15 | 2016-02-15 | A kind of STF highly energy-consumings slip support abutment |
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| CN201610086440.2A CN105780930B (en) | 2016-02-15 | 2016-02-15 | A kind of STF highly energy-consumings slip support abutment |
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| CN105780930A CN105780930A (en) | 2016-07-20 |
| CN105780930B true CN105780930B (en) | 2018-03-23 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677367B (en) * | 2017-01-17 | 2019-10-25 | 沈阳建筑大学 | A kind of three-dimensional highly energy-consuming shock mount based on shear thickening liquid |
| CN107013073B (en) * | 2017-03-24 | 2019-05-31 | 南京理工大学 | Composite-structure magnetorheological elastomer isolator |
| CN107217752B (en) * | 2017-07-17 | 2019-01-29 | 盛年科技有限公司 | A kind of method and antidetonation isolation mounting of the vibration isolation of electromechanical equipment antidetonation |
| CN108049518A (en) * | 2018-01-18 | 2018-05-18 | 华侨大学 | A kind of Self-resetting shock isolating pedestal based on STF |
| CN108385845A (en) * | 2018-02-26 | 2018-08-10 | 江苏大学 | A kind of Novel high-damping variation rigidity extrusion pressing type earthquake isolating equipment |
| CN108843724B (en) * | 2018-07-16 | 2020-02-21 | 河海大学 | Variable-rigidity variable-damping shock isolation device based on STF |
| CN113737959A (en) * | 2021-09-17 | 2021-12-03 | 沈阳建筑大学 | Laminated rubber support based on shear thickening fluid |
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| JP2816344B2 (en) * | 1987-05-26 | 1998-10-27 | 株式会社ブリヂストン | Laminated rubber bearing |
| JPH11270622A (en) * | 1998-03-23 | 1999-10-05 | Daiwa House Ind Co Ltd | Attenuation type layered rubber isolator |
| JP2000199541A (en) * | 1999-01-05 | 2000-07-18 | Nippon Steel Corp | Vibration suspension device |
| JP2002130370A (en) * | 2000-10-19 | 2002-05-09 | Taisei Corp | Seismic isolator |
| CN102561173A (en) * | 2011-12-19 | 2012-07-11 | 北京工业大学 | Speed type structure connecting and locking device containing shear thickening liquid |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2816344B2 (en) * | 1987-05-26 | 1998-10-27 | 株式会社ブリヂストン | Laminated rubber bearing |
| JPH11270622A (en) * | 1998-03-23 | 1999-10-05 | Daiwa House Ind Co Ltd | Attenuation type layered rubber isolator |
| JP2000199541A (en) * | 1999-01-05 | 2000-07-18 | Nippon Steel Corp | Vibration suspension device |
| JP2002130370A (en) * | 2000-10-19 | 2002-05-09 | Taisei Corp | Seismic isolator |
| CN102561173A (en) * | 2011-12-19 | 2012-07-11 | 北京工业大学 | Speed type structure connecting and locking device containing shear thickening liquid |
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| CN105780930A (en) | 2016-07-20 |
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