CN208348381U - Multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system - Google Patents
Multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system Download PDFInfo
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- CN208348381U CN208348381U CN201820483717.XU CN201820483717U CN208348381U CN 208348381 U CN208348381 U CN 208348381U CN 201820483717 U CN201820483717 U CN 201820483717U CN 208348381 U CN208348381 U CN 208348381U
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- 238000013016 damping Methods 0.000 title claims abstract description 23
- 230000033001 locomotion Effects 0.000 title claims abstract description 14
- 238000010617 multipoint ground Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model provides a kind of multi-point Ground Motion test stiffness and damping adjustable boundary system suitable for shake table, including leads power device, ER fluid, rigidity controller, damping control apparatus, positive and negative pole plate and antiseepage tarpaulin.It leads power device and is the tubular structure of lower openings, including lead power device, contact cylinder, level and lead power plate and lead power plate vertically；Leading power device includes leading power device lid, leading power device outer wall and what is be open below being secured within leads power device inner wall, and level, which leads power plate and leads power plate vertically and be all fixed in, leads power device outer wall；Contact cylinder, which is placed in, leads in power device inner wall；Rigidity controller is tubular structure, is placed in contact cylinder, including stiffness reliability device, sheet annular spring and disk spring；Being fixed in for antiseepage paulin closed type is led inside power device lower part and stiffness reliability device, and the outer periphery of antiseepage paulin and antiseepage bearing is tightly connected, and is tightly connected with the inner periphery for leading power device inner wall.The utility model can simultaneously adjustment spring multidirectional rigidity, can apply multi-point Ground Motion test carry out Artificial Boundaries simulation.
Description
Technical field
The utility model relates to seismic test engineering device technique fields, more specifically, being related to a kind of structural earthquake simulation vibration
The Artificial Boundaries device of dynamic platform.
Background technique
Earthquake vibration platform currently used for structural earthquake test generally uses mechanical, electromagnetic type and servo-fluid pressure type, but
It is the earthquake vibration simulation that these earthquake simulation platforms are often directed to small-scale structure.For the earthquake response point of large-span structure
Analysis, needs to take into account row wave effect, coherent effect and the local site effect etc. during seismic spread, so earthquake must be taken into consideration
The dynamic time and spatial variations, then large-span structure is the earthquake motion excitation of multi-support and multi-dimension.However in multi-point Ground Motion test,
Existing earthquake vibration platform is often multidimensional consistent excitation, it is impossible to be used in the earthquake vibration sunykatuib analysis of large-span structure, currently such as
What realize allow the earthquake synthesis of large-span structure closest to true seismic activity be problem to be solved.
Utility model content
The purpose of the utility model is to provide a kind of multi-point Ground Motions suitable for shake table to test the adjustable side of stiffness and damping
Boundary's system, which mainly realizes multidirectional rigidity and damps adjustable function, so that distributed Artificial Boundaries simulation is carried out,
Solve the multi-point Ground Motion test problem that shake table is suitable for large-span structure.Technical solution is as follows:
A kind of multi-point Ground Motion test stiffness and damping adjustable boundary system suitable for shake table, including lead power device, electricity
Rheology liquid, rigidity controller, damping control apparatus, positive and negative pole plate and antiseepage tarpaulin, which is characterized in that
The power of the leading device is the tubular structure of lower openings, including leads power device, contact cylinder, level and lead power plate and lead vertically
Power plate；Leading power device includes leading power device lid, leading power device outer wall and what is be open below being secured within leads power device inner wall, the level
Lead power plate and it is described lead power plate vertically and be all fixed in lead power device outer wall；The contact cylinder, which is placed in, leads in power device inner wall；
The rigidity controller is tubular structure, is placed in contact cylinder, including stiffness reliability device, sheet annular spring
And disk spring；Stiffness reliability device is tubular structure, including being located at the control shaft at middle part, top, side wall and being located at lower part simultaneously
The adjuster being fixedly connected with control shaft offers outlet at the top of stiffness reliability device, also offered on side wall it is long and narrow go out
Mouthful, the sheet annular spring and described disk spring one end are placed in the stiffness reliability device, are connected respectively to control shaft
Lateral and top, the other end are pierced by by the outlet that the side wall and top of the stiffness reliability device open up respectively, around described rigid
It spends the side wall of controller and is placed on stiffness reliability device top；The outer end of the sheet annular spring is fixed in described simultaneously
Contact cylinder inner wall；By rotating the adjuster of stiffness reliability device bottom, by the part sheet annular spring and part institute
It states disk spring to screw in and be compressed in the stiffness reliability device, the lower part of control shaft is provided with antiseepage bearing；
The antiseepage paulin closed type be fixed in it is described lead inside power device lower part and stiffness reliability device, antiseepage paulin with
The outer periphery of antiseepage bearing is tightly connected, and is tightly connected with the inner periphery for leading power device inner wall, and ER fluid is located at by leading power device
In the cavity that inner wall and antiseepage paulin surround；
The rigidity controller be located at antiseepage bearing upper part be placed in it is described lead in power device, and be immersed in electric current
Become in liquid, is pierced by positioned at antiseepage bearing low portion by the power of the leading device lower openings；
In the two sides of the power of the leading device inner wall, respectively there are one piece of accommodating spaces, for accommodating positive and negative pole plate；Damping control dress
It sets, for adjusting the size for loading the voltage on positive and negative pole plate.
Preferably, the level leads power plate and leads power device genesis analysis described in, and horizontal nest is simultaneously fixed in and described leads power device
Outer wall；
The power plate of leading vertically leads power device outer wall in cross distribution described in, is vertically fitted into and is fixed in the level and leads power
Plate interlayer.
The power device outer wall section of leading is circle, and leading power device inner wall section is square.
The utility model has the advantages and positive effects of:
One) by the adjuster of control rigidity controller bottom, part sheet annular spring and disk spring are screwed in
And be compressed in sheet stiffness reliability device and dish-shaped stiffness reliability device, change the length of external springs with this, realizes multidirectional rigid
Spend adjustable function.
Two) by adjusting pressure regulator, change the viscosity that electric field strength changes simultaneously ER fluid, be achieved in multidirectional damping
The controllable function of coefficient.
Three) device design can adjust multidirectional rigidity and damping simultaneously, and make simply, can apply in multiple spot
The simulation of vibratory test progress Artificial Boundaries.
Detailed description of the invention
Fig. 1 is that the present apparatus combines front view.
Fig. 2 is that the present apparatus combines top view.
Fig. 3 is that the present apparatus splits schematic three dimensional views.
In figure: 1, leading power device；101, power device lid is led；102, cylinder is contacted；103, power device is led；1031, power device inner wall is led；
1032, power device outer wall is led；104, power plate is led vertically；105, level leads power plate；106, accommodating space；2, ER fluid；3, rigidity
Control device；301, disk spring；302, sheet annular spring；303, stiffness reliability device；304, antiseepage bearing；305, it adjusts
Device；306, controller closes capping；307, control shaft；4, damping control apparatus；401, rectifier；402, power supply；403, pressure regulator；
404, conducting wire；5, positive and negative pole plate；6, antiseepage paulin.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
Cooperate attached drawing.
Detailed description are as follows: a kind of multi-point Ground Motion test stiffness and damping adjustable boundary system suitable for shake table, packet
It includes and leads power device 1, ER fluid 2, rigidity controller 3, damping control apparatus 4, positive and negative pole plate 5 and antiseepage paulin 6.
The power of the leading device 1 generally tubular structure includes leading power device 103, contact cylinder 102, level to lead power plate 105 and erect
Directly lead power plate 104；Leading power device 103 includes below leading power device lid 101, the columnar power of leading device outer wall 1032 and being secured within
The square bodily form of opening leads power device inner wall 1031.The level lead power plate 105 and it is described lead power plate 104 vertically and be all fixed in lead power
Device outer wall 1032, the contact cylinder 102 are nested in described lead in power device 103；101 inner surfaces of the power of the leading device lid are smooth and screw
In 103 top of the power of leading device；It is described lead power device be 1032 section of outer wall be it is round, 1031 section of inner wall is the cylinder of square
Shape structure, and 103 upper end opening of the power of leading device is covered with the power of the leading device 101 and is sufficiently engaged；Simultaneously at 103 liang of the power of the leading device
There are two pieces of accommodating spaces 106 for side；Two pieces of accommodating spaces 106 are the flat rectangular of the two sides in the power of the leading device 103
Fluid chamber；The tubular structure that the contact cylinder 102 is sufficiently open for upper and lower end, and the inside and outside wall surface of the contact cylinder 102
It is smooth, and just it is nested in described lead inside power device 103；The level leads power plate 105 along 103 genesis analysis of the power of leading device,
Horizontal nest is simultaneously fixed in and described leads power device outer wall 1032；1032 walls outside the power of the leading device of power plate 104 of leading vertically are in ten
Word distribution is vertically fitted into and is fixed in the level and leads 105 interlayer of power plate.
The rigidity controller 3 includes stiffness reliability device 303, sheet annular spring 302 and disk spring 301；Institute
Stating stiffness reliability device 303 is tubular structure, and the sheet annular spring 302 and 301 one end of the disk spring are placed in described rigid
It spends in controller 303, the other end is pierced by by the reserved outlet of the side wall of the stiffness reliability device 303 and top respectively, is surround
It the side wall of the stiffness reliability device 303 and is placed on the stiffness reliability device 303 top；The outer end of the sheet annular spring 302
Portion is fixed in 102 inner wall of contact cylinder；303 bottom of stiffness reliability device controller close capping 306 inner sidewalls there are
Screw thread, for external equipment installation；And the antiseepage bearing that Anti-seeping technology was done on surface is installed in the lower part of control shaft 307
304。
6 closed type of antiseepage paulin be fixed in it is described lead inside 1 lower part of power device and stiffness reliability device 303, antiseepage
The outer periphery of paulin 6 and antiseepage bearing 304 is tightly connected, and is tightly connected with the inner periphery for leading power device inner wall 1031, and electric current becomes
Liquid 2 is located at by leading in the cavity that power device inner wall 1031 and antiseepage paulin 6 surround.
Rigidity controller 3 be located at 304 upper part of antiseepage bearing be placed in it is described lead in power device 1, and be immersed in electric current
Become in liquid 2, is pierced by positioned at 304 low portion of antiseepage bearing by 1 lower openings of the power of leading device, while 5 plate of the positive and negative electrode
It is inserted and fixed in the accommodating space 106 of 1 two sides of the power of leading device, and the damping control apparatus 4 is placed in and described leads power
Device 1 is outer and welds with the positive and negative pole plate 5；The adjuster 305 for rotating 3 bottom of rigidity controller at this time, by part
Sheet annular spring 302 and part disk spring 301 are screwed in and are compressed in the stiffness reliability device 303, thus described in changing
303 external springs rigidity of stiffness reliability device；External pressure regulator 403 is adjusted simultaneously changes field strength between the positive and negative pole plate 5 simultaneously
The viscosity for accordingly changing the ER fluid 2, to control damped coefficient；The active force of external equipment passes through described after adjusting
Rigidity controller 3 and 4 comprehensive function of the damping control apparatus are transmitted to surrounding soil by the power of the leading device 1.
The damping control apparatus 4 includes power supply 402, rectifier 401, pressure regulator 403 and conducting wire 404；The power supply
402, the positive and negative pole plate 5 is connected to become entirety by the conducting wire 404 by the rectifier 401, the pressure regulator 403.
The utility model suitable for shake table multi-point Ground Motion test stiffness and damping adjustable boundary system can be used into
The processing of row Artificial Boundaries, the use of the device are entirely will to lead power device 1 and be imbedded in the soil body to play effectiveness, the mechanism of action
Be: external device (ED) (shake table) is mounted on the controller and closes 306 bottom ends of capping, and active force is directly conducted to the rigidity at this time
Control device 3 (leads power device 1 described in not being directly transferred to), while (utilizing institute by the damping action of the ER fluid 2
The viscosity for stating ER fluid 2 inhibits the vibration of spring), then active force is transmitted to and described lead power device inner wall 1031, described lead
Power device outer wall 1032, it is described lead power plate 104 and the level leads power plate 105 vertically, be finally uniformly diffused into the soil body.
In the preferred scheme of one of the application, being fixed in for 6 closed type of antiseepage paulin described leads 1 lower part of power device
Inside stiffness reliability device 303.Specifically, the antiseepage paulin 6 has two difference annular in shape, using high-intensitive bonding
One antiseepage paulin is bonded in just and described lead 103 inner bottom surface of power device while being bonded in the stiffness reliability device by agent
303 lateral walls；Another antiseepage paulin is bonded in 303 inner sidewall of stiffness reliability device just while being bonded in the control
307 lower part antiseepage bearing of axis, 304 side wall processed, and permeability-reducing admixture is filled in bonding place.
Preferably, the ER fluid 2 fills before 1 inside of the power of leading device, first to the entire rigidity
It control device 3 and leads 1 internal component surface of power device and does anti-corrosion treatment.
Preferably, the positive and negative pole plate 5 is placed in the accommodating space 106 for leading 1 two sides of power device, specifically,
Positive and negative pole plate 5 is first nested in rubber-covered bush inside and is placed in the accommodating space 106 again.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
Under ambit, many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (3)
1. a kind of multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system, including leads power device, electric current
Become liquid, rigidity controller, damping control apparatus, positive and negative pole plate and antiseepage paulin, which is characterized in that
The power of the leading device is the tubular structure of lower openings, including leads power device, contact cylinder, level and lead power plate and lead power vertically
Plate；Leading power device includes leading power device lid, leading power device outer wall and what is be open below being secured within leads power device inner wall, and the level is led
Power plate and it is described lead power plate vertically and be all fixed in lead power device outer wall；The contact cylinder, which is placed in, leads in power device inner wall；
The rigidity controller is tubular structure, is placed in contact cylinder, including stiffness reliability device, sheet annular spring and dish
Shape spring；Stiffness reliability device is tubular structure, including be located at the control shaft at middle part, top, side wall and be located at lower part and with control
The adjuster that axis processed is fixedly connected offers outlet at the top of stiffness reliability device, and long and narrow outlet, institute are also offered on side wall
State sheet annular spring and described disk spring one end be placed in the stiffness reliability device, be connected respectively to the lateral of control shaft and
Top, the other end are pierced by by the outlet that the side wall and top of the stiffness reliability device open up respectively, around the stiffness reliability
It the side wall of device and is placed on stiffness reliability device top；The outer end of the sheet annular spring is fixed in the contact cylinder simultaneously
Inner wall；By rotating the adjuster of stiffness reliability device bottom, by the part sheet annular spring and the part dish
Spring is screwed in and is compressed in the stiffness reliability device, and the lower part of control shaft is provided with antiseepage bearing；
The antiseepage paulin closed type be fixed in it is described lead inside power device lower part and stiffness reliability device, antiseepage paulin and antiseepage
The outer periphery of bearing is tightly connected, and is tightly connected with the inner periphery for leading power device inner wall, and ER fluid is located at by leading power device inner wall
In the cavity surrounded with antiseepage paulin；
The rigidity controller be located at antiseepage bearing upper part be placed in it is described lead in power device, and be immersed in ER fluid
In, it is pierced by positioned at antiseepage bearing low portion by the power of the leading device lower openings；
In the two sides of the power of the leading device inner wall, respectively there are one piece of accommodating spaces, for accommodating positive and negative pole plate；Damping control apparatus,
For adjusting the size for loading the voltage on positive and negative pole plate.
2. multi-point Ground Motion according to claim 1 tests stiffness and damping adjustable boundary system, which is characterized in that the water
Flat power plate of leading leads power device genesis analysis described in, and horizontal nest is simultaneously fixed in and described leads power device outer wall；It is described to lead power plate edge vertically
The power of the leading device outer wall is in cross distribution, is vertically fitted into and is fixed in the level and leads power plate interlayer.
3. multi-point Ground Motion according to claim 1 tests stiffness and damping adjustable boundary system, which is characterized in that described
Leading power device outer wall section is circle, and leading power device inner wall section is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483717.XU CN208348381U (en) | 2018-04-08 | 2018-04-08 | Multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483717.XU CN208348381U (en) | 2018-04-08 | 2018-04-08 | Multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348381U true CN208348381U (en) | 2019-01-08 |
Family
ID=64885733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820483717.XU Withdrawn - After Issue CN208348381U (en) | 2018-04-08 | 2018-04-08 | Multi-point Ground Motion suitable for shake table tests stiffness and damping adjustable boundary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348381U (en) |
-
2018
- 2018-04-08 CN CN201820483717.XU patent/CN208348381U/en not_active Withdrawn - After Issue
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240329 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240329 |