CN108594292A - A kind of pilot system of ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field - Google Patents
A kind of pilot system of ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field Download PDFInfo
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Abstract
The present invention provides a kind of pilot system of the ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field, including：Including force application apparatus, foundation structure, power apparatus, ER fluid, rigidity controller, damping control apparatus, positive and negative pole plate, antiseepage tarpaulin and for connecting the connecting elements of force application apparatus and rigidity controller are led, foundation structure includes pedestal, table top and support column；It leads power apparatus to be placed on table top, force application apparatus is placed on the pedestal of foundation structure；It includes leading power device, contact cylinder, level to lead power plate and lead power plate vertically to lead power apparatus；Rigidity controller is tubular structure, including stiffness reliability device, sheet annular spring and disk spring；Being fixed in for antiseepage paulin closed type is led inside power apparatus lower part and stiffness reliability device；The force application apparatus includes the applicator of three different directions；Connecting elements top is fixedly connected with adjuster.The present invention can simultaneously adjustment spring multidirectional rigidity, can apply multi-point Ground Motion test carry out Artificial Boundaries simulation.
Description
Technical field
The present invention relates to structural earthquake simulator, refer in particular to be suitable for multiple spot based on visco-elastic artificial boundary theory
The simulation of earthquake dynamic test.
Background technology
In recent decades, with the development of engineering technology, more and more longspan structure buildings are built.It is this kind of to build
Building structure object often carries important economy, culture and social function etc., therefore when earthquake disaster occurs, ensures such knot
The safety and stability of structure have great importance.Wenchuan earthquake in 2008, Mianyang nine divisions of China in remote antiquity have just disposed tens thousand of names in gymnasium
Masses suffering from disaster, this more allow engineering staff recognize large-span structure Aseismic Design significance.
For the seismic response analysis of large-span structure, need to take into account row wave effect during seismic spread, coherent effect
With local site effect etc., so must take into consideration time and the spatial variations of earthquake motion, then large-span structure is multi-support and multi-dimension
Earthquake motion encourages, and existing structural earthquake simulator is mainly based on shake table, is a kind of comprehensive high-tech product,
It is expensive, and most of is the multidimensional consistent excitation for being directed to earthquake motion, cannot be satisfied the earthquake motion examination of large-span structure instantly
Test demand of the simulation for time and Spatial Difference.
Specifically, visco-elastic artificial boundary is theoretical, convert the input of earthquake motion to act on it is equivalent on Artificial Boundaries
Load realizes wave motion input, effectively absorbs the seismic wave that ground finite field is radiated to infinite field, and can be good at simulating
The elastic recovery properties of the outer semi-infinite foundation of Artificial Boundaries, are based on this, existing earthquake simulator can not carry out Artificial Boundaries
Simulation, and can not be carried out at the same time multi-point Ground Motion experiment simulation.Therefore for make one kind can ground foundation simulation it is artificial
Boundary, and multi-point Ground Motion experiment can be carried out, while low, the simple in structure device of manufacturing cost has greater significance.
Invention content
The present invention provides a kind of experimental rig of the ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field, the device energy
Stiffness and damping adjustable function is simultaneously realized in enough ground foundation simulation boundaries, while realizing and inputting equivalent load on Artificial Boundaries.The present invention
Take following technical scheme：
A kind of pilot system of ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field, including：Including force application apparatus,
Foundation structure is led power apparatus, ER fluid, rigidity controller, damping control apparatus, positive and negative pole plate, antiseepage tarpaulin and is used for
Connect the connecting elements of force application apparatus and rigidity controller, which is characterized in that
The foundation structure includes pedestal, table top and support column；The table top is fixed on the base by the support column
Seat top；And the table top, which is equipped with, can accommodate the round hole that rigidity controller lower part is pierced by, and lead power apparatus and be placed in table top
On, force application apparatus is placed on the pedestal of foundation structure；
The power apparatus of leading is the tubular structure of lower openings, including leads power device, contact cylinder, level and lead power plate and lead vertically
Power plate；It 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 to lead power device
Lead power plate and it is described it is vertical lead power plate 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 be tubular structure, include the control shaft positioned at middle part, top, side wall and positioned at lower part simultaneously
The adjuster being fixedly connected with control shaft offers outlet at the top of stiffness reliability device, also offers long and narrow to go out on side wall
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 outlet that the other end is opened up by the side wall and top of the stiffness reliability device respectively are pierced by, 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 the contact
Cylinder inner wall；The bottom of disk spring is fixedly connected with disk；By rotating the adjuster of stiffness reliability device bottom, by part
The sheet annular spring and the part disk spring are screwed in and are compressed in the stiffness reliability device, in the lower part of control shaft
It is provided with antiseepage bearing；
The antiseepage paulin closed type be fixed in it is described lead inside power apparatus 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 apparatus, and be immersed in electric current
Become in liquid, is pierced by by the power apparatus lower openings of leading positioned at antiseepage bearing low portion；
In the both 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 fills
It sets, the size for adjusting voltage of the load on positive and negative pole plate；
The force application apparatus includes that X lives to applicator, Y-direction applicator, Z-direction applicator, the first movable platform and second
Moving platform, the first movable platform are placed in second movable platform, and the second movable platform is placed on foundation structure pedestal；It is described
Z-direction applicator is fixed in first movable platform, and force application rod is fixedly connected with the lower part of connecting elements；The X is to applying
Power device is fixed in second movable platform, and force application rod is horizontally fixed on the lateral plate of first movable platform, is used
In to the first movable platform apply X to power；The Y-direction applicator is fixed on the pedestal, and force application rod is horizontally fixed on
On the lateral plate of second movable platform, the power for applying Y-direction to the second movable platform；Forces of the X to applicator
The rectangular relationship of the force application rod of bar and Y-direction applicator；
The connecting elements top is fixedly connected with adjuster.
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 vertical power plate of leading 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 round, and it is square to lead power device inner wall section.The applicator in three directions
Structure is identical, and each applicator includes force application rod and is connected to the sleeve of force application rod by bearing, and positioning is fixed on sleeve
Axis, by changing the orientation of force application rod to the positioning of locating shaft, the force application rod of Z-direction applicator is vertical direction, X to applicator and
Y-direction applicator force application rod is horizontal direction.
The connecting elements includes the barrel-type casing for offering gathering hole and being placed in the first movable platform, connecting elements
Be laterally equipped with two pieces of protruding portions, two pieces of protruding portions are respectively disposed with the idler wheel being in contact with the barrel-type casing inner wall.
The invention has the advantages and positive effects that：
One) by controlling the adjuster of 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) apparatus of the present invention design can adjust multidirectional rigidity and damping simultaneously, and realize apply at node it is multidirectional etc.
Load is imitated, multi-point Ground Motion experiment can be directly carried out.
Four) apparatus of the present invention design form is simple, and cost of manufacture is relatively low, and a large amount of manufactures can be convenient for be tested.
Description of the drawings
Fig. 1 is apparatus of the present invention front view.
Fig. 2 is apparatus of the present invention left view.
Fig. 3 is the vertical view of basic structure and force application apparatus.
Fig. 4 is table top superstructure front view.
Fig. 5 is table top superstructure vertical view.
Fig. 6 is Z-direction applicator schematic three dimensional views.
Fig. 7 is that table top superstructure decomposes schematic three dimensional views.
In figure：1, power apparatus is led；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；303a, hoop rigidity controller；
303b, longitudinal rigidity controller；303c, disk；304, antiseepage bearing；305, adjuster；306, controller closes capping；307, it controls
Axis processed；4, damping control apparatus；401, rectifier；402, power supply；403, pressure regulator；404, conducting wire；5, positive and negative pole plate；6, prevent
Ooze paulin；7, force application apparatus；701, X is to applicator；702, Y-direction applicator；703, Z-direction applicator；704, the first movable platform；
705, the second movable platform；706, connecting elements；7a, gathering hole；7b, idler wheel；7c, castor；7d, lateral plate；7e, force application rod；
7f, locating shaft；8, foundation structure；801, pedestal；802, support column；803, table top；
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached
Figure.
The experimental rig of the ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field of the present invention consists of the following parts：
Lead power apparatus 1, ER fluid 2, rigidity controller 3, damping control apparatus 4, positive and negative pole plate 5, antiseepage paulin 6, force application apparatus
7 and foundation structure 8.
Detailed description are as follows for each structure：
The generally tubular structure of power apparatus 1 of leading includes leading power device 103, contact cylinder 102, level to lead power plate 105 and erect
Directly lead power plate 104；It includes below leading power device lid 101, the columnar power of leading device outer wall 1032 and being secured within to lead power device 103
The square bodily form of opening leads power device inner wall 1031.The level lead power plate 105 and it is described it is vertical lead power plate 104 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 the leading device；Described to lead power device be 1032 section of outer wall is round, and 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 fully engaged；Simultaneously in 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 both sides in the power of the leading device 103
Fluid chamber；The tubular structure that the contact cylinder 102 is fully open for upper and lower end, and the 102 inside and outside wall surface of contact cylinder
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；Vertical 1032 walls outside the power of the leading device of power plate 104 of leading are in ten
Word is distributed, and 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
It is tubular structure to state stiffness reliability device 303, and the sheet annular spring 302 and 301 one end of the disk spring are placed in described rigid
It in degree controller 303 and is separately fixed in control shaft 307 and disk 303c, the other end is respectively by the stiffness reliability device 303
The reserved outlet of side wall and top be pierced by, around the stiffness reliability device 303 side wall and be placed in the stiffness reliability device
On 303 tops.
Wherein the stiffness reliability device 303 is：Longitudinal rigidity controller 303b is coaxially fixed in hoop rigidity controller
303a inner tips, 307 upper end of control shaft are mounted on the longitudinal rigidity controller 303b top centers, control by bearing
Device closes capping 306 and is tightened on 303 bottom end of stiffness reliability device across the control shaft 307；The hoop rigidity controller 303a is
The tubular structure of upper end closed, lower ending opening connects in the top surface of hoop rigidity controller 303a and longitudinal rigidity controller 303b
It is provided with the control mouth being pierced by for disk spring 301 at conjunction, there are screw thread at lower end outer wall, and hoop rigidity controller 303b
There are the rectangle being pierced by for sheet annular spring 302 controls to stitch for side wall；The longitudinal rigidity controller 303b opens for upper and lower end
The hoop structure of mouth, the top half of inner wall are equipped with the screw thread being fully engaged with disk spring 301, and lower half portion is smooth, and
The internal diameter of the lower half portion longitudinal rigidity controller 303b is slightly less than the internal diameter of top half；The generally cylinder of the control shaft 307
Body, it is in positive hexagonal column shape to be located at longitudinal rigidity controller 303b and controller to close 306 segment sections of capping, and 307 upper end of control shaft
Hexagon section is cased with disk 303c, and lower end is equipped with the antiseepage bearing 304 that Anti-seeping technology was done on surface；Disk 303c is stayed at center
Have a hexagonal hole being fully engaged against with 307 upper end hexagon section of control shaft, and disk 303c side walls there are with longitudinal rigidity control
The screw thread that the tops device 303b processed are fully engaged against；The controller close capping 306 and 305 center of adjuster all there are with the control
The hexagonal hole that 307 lower end hexagon section of axis is fully engaged against；The outer end of the sheet annular spring 302 is fixed in described connect
Touch 102 inner wall of cylinder；Controller in 303 bottom of stiffness reliability device closes 306 madial walls of capping, and there are screw threads, for connecting structure
Part is installed.
Thus the rotation of the adjuster 305 of 3 bottom of the rigidity controller, will drive the rotation of the control shaft 307
Turn, the control of the sheet annular spring 302 is driven with this, while the rotation of the control shaft 307 can also drive the disk
The rotation of 303c, the disk 303c move up and down along by the longitudinal rigidity controller 303b inner threads, drive dish-shaped bullet
The control of spring 301.
6 closed type of antiseepage paulin be fixed in it is described lead inside 1 lower part of power apparatus and stiffness reliability device 303, antiseepage
Paulin 6 and the outer periphery of antiseepage bearing 304 are tightly connected, and are 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.
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 rectifier 401, the pressure regulator 403 by the conducting wire 404.
The rigidity controller 3 be located at 304 upper part of antiseepage bearing be placed in it is described lead in power apparatus 1, and be immersed in
In ER fluid 2, it is pierced by by 1 lower openings of power apparatus of leading positioned at 304 low portion of antiseepage bearing, while described positive and negative
5 plate of pole is inserted and fixed in the accommodating space 106 for leading 1 both sides of power apparatus, and the damping control apparatus 4 be placed in it is described
It leads outside power apparatus 1 and is welded with the positive and negative pole plate 5；The adjuster 305 of 3 bottom of the rigidity controller is rotated at this time, and
With nut tightening in 305 side mounting hole of adjuster, part sheet annular spring 302 and part disk spring 301 are screwed in simultaneously
It is compressed in the stiffness reliability device 303, to change 303 external springs rigidity of the stiffness reliability device；It adjusts simultaneously external
Pressure regulator 403 changes the field strength between the positive and negative pole plate 5 and accordingly changes the viscosity of the ER fluid 2, to control resistance
Buddhist nun's coefficient.
The force application apparatus 7 includes X to applicator 701, Y-direction applicator 702, Z-direction applicator 703, connecting elements
706, the first movable platform 704 and the second movable platform 705；The Z-direction applicator 703 is fixed on first movable platform
On 704, force application rod 7e is vertically fixed on 706 lower part of the connecting elements by nut；The X is fixed on institute to applicator 701
It states in the second movable platform 705, and force application rod 7e is horizontally fixed on the lateral plate of first movable platform 704 by nut
7d；The Y-direction applicator 702 is fixed on the pedestal 801, and force application rod 7e is horizontally fixed on second activity by nut
The lateral plate 7d of platform 705；The X is at right angles closed to the force application rod 7e of applicator 701 and the force application rod 7e of Y-direction applicator 702
System, and；First movable platform 704 is placed in second movable platform 705 simultaneously.
The Z-direction applicator 703, the X are utilized respectively bolt by applying to applicator 701 and the Y-direction applicator 702
The screw hole of power device bottom is fixed on first movable platform 704, second movable platform 705 and the pedestal 801.
About the X to applicator 701 and the Y-direction applicator 702 be by the Z-direction applicator 703 around locating shaft 7f
It is rotated by 90 ° to obtain in vertical plane, blending bolt is lateralling secure, and the direction of the force of the force application rod 7e is in horizontal plane at this time
It is interior；Force application rod 7e is done the output of power by hydraulic power source or motor control.
There are two pieces of lateral plate 7d, the lateral plate 7d lower edges and described in wherein described first movable platform, 704 both sides
One movable platform, 704 lateral edge is affixed；First movable platform, 704 other both sides transverse horizontal arrangement idler wheel 7b simultaneously；
First movable platform, the 705 bottom end arrangement castor 7c.
Second movable platform, 705 both sides have two pieces of lateral plate 7d, the lateral plate 7d lower edges and described second to live
705 lateral edge of moving platform is affixed；Second movable platform, 705 other both sides transverse horizontal arrangement idler wheel 7b simultaneously；It is described
Castor 7c is arranged in second movable platform, 705 bottom end.
706 upper opening of connecting elements and cylinder, upper periphery wall has and the controller closes capping 306
The screw thread that madial wall is fully engaged, and be tightened on controller and close 306 madial walls of capping；Laterally have two in the connecting elements 706
Block protruding portion, in each vertical levels arrangement idler wheel 7b of two pieces of protruding portions；The connecting elements surface is equipped with a gathering hole 7a,
Adjuster 305 is convenient for by the gathering hole 7a to control.
The foundation structure 8 includes pedestal 801, table top 803, support column 802；The table top 803 passes through the support column
802 are fixed on 801 top of the pedestal；And 803 center of the table top, which has, can accommodate what 3 lower part of rigidity controller was pierced by
Round hole.
The force application apparatus 7 is to be respectively and fixedly installed to first movable platform 704, described second by applicator
In movable platform 705 and pedestal 801, the lateral plate 7d of first movable platform 704 and second movable platform 705 is utilized
The connecting elements 706 and the rigidity controller 3 are transferred the force to, and is filled via the stiffness reliability after adjusting
The comprehensive function for setting 3 and the damping control apparatus 4 converts earthquake motion wave source to work from the power apparatus 1 of leading to external diffusion
Equivalent load at node.
As a result, by the adjuster 305 of 303 bottom of rotational stiffness controller, change rigidity situation, while utilizing damping control
Pressure regulator 403 in device 4 processed adjusts the size of voltage of the load on positive and negative pole plate 5, changes damping situation, realizes experiment
The simulation of basic Artificial Boundaries situation, and acted on simulated person's work boundary by the equivalent load that force application apparatus 2 applies, after
It transmits and is ultimately applied on test structure outward successively, with the interaction of this model configuration-earthquake motive force.
Embodiment one：Based on visco-elastic artificial boundary theory, when carrying out the structurally simulation of vibrations consistent excitation, such as
Small-sized building structure entirely can lead the affixed one piece of stiffener plate in 1 upper surface of power apparatus in advance, and the building structure is being mounted on
In the stiffener plate or situation allows, and building structure can be directly mounted on to the upper surface of described apparatus of the present invention.
Embodiment two：Based on visco-elastic artificial boundary theory, carry out structure multi-point Ground Motion experiment when, such as greatly across
Bridge can be used multiple apparatus of the present invention, and the entire power apparatus 1 of leading in the present invention adjusted advance be imbedded in structure each
Inside support point, i.e., the bottom center of each bridge pier, then each bridge pier is mounted on table top.
It is as follows using the earthquake motion test procedure of apparatus of the present invention：
(1) be directed to it is different by experiment works, select corresponding testing program and install test model.
(2) rectifier 401, pressure regulator 403 are led to by conducting wire and positive and negative pole plate 5 is connected to become entirety, and force is filled
It sets 7 to power on, while being connected to control system.(system can calculate required input by inputting a series of parameter
Equivalent load simultaneously controls force application apparatus 7 as required)
(3) by the rotation of the adjuster 305 of 3 lower part of rigidity controller, regulate and control related stiffness parameters；Simultaneously using tune
Depressor 403 adjusts the field strength between positive and negative pole plate 5, regulates and controls related damping parameter.
(4) related seismic wave parameter is inputted in numerical control system, while controlling the active force of different force application apparatus 7
Degree and action time, the action time of earthquake motion and the variability of action space are embodied, carrys out the input of simulating seismic motion wave source.
(5) validation test starts.
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 apparatus
Inside stiffness reliability device 303.Specifically, it is in respectively annular shape that the antiseepage paulin 6, which has two, using the bonding of high intensity
Agent leads 103 inner bottom surface of power device while being bonded in the stiffness reliability device described in being bonded in an antiseepage paulin 6 just
303 lateral walls；Another antiseepage paulin 6 is bonded in 303 madial wall of stiffness reliability device while being bonded in described just
307 lower part antiseepage bearing of control shaft, 304 side wall, and fill permeability-reducing admixture in bonding place.
Preferably, the ER fluid 2 fills before described lead inside power apparatus 1, first to the entire rigidity
It control device 3 and leads 1 internal component surface of power apparatus and does anti-corrosion treatment.
Preferably, the positive and negative pole plate 5 is placed in the accommodating space 106 for leading 1 both sides of power apparatus, specifically,
Positive and negative pole plate 5 is first nested in rubber-covered bush inside and is placed in the accommodating space 106 again.
Preferably, the quantity of castor 7c and idler wheel 7b are according to the first movable platform 704 and the second activity in the present invention
The size of platform 705 is set, while before on-test, castor 7c and idler wheel 7b after surface addition lubricant lubrication again into
Row experiment.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited in upper
The specific implementation mode stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of, within these are all belonged to the scope of protection of the present invention.
Claims (5)
1. a kind of pilot system of ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field, including：Including force application apparatus, base
Plinth structure leads power apparatus, ER fluid, rigidity controller, damping control apparatus, positive and negative pole plate, antiseepage tarpaulin and for connecting
Connect the connecting elements of force application apparatus and rigidity controller, which is characterized in that
The foundation structure includes pedestal, table top and support column；The table top is fixed on by the support column on the pedestal
Side；And the table top, which is equipped with, can accommodate the round hole that rigidity controller lower part is pierced by, and lead power apparatus and be placed on table top, apply
Power apparatus is placed on the pedestal of foundation structure；
The power apparatus of leading is the tubular structure of lower openings, including leads power device, contact cylinder, level and lead power plate and lead power vertically
Plate；It includes leading power device lid, leading power device outer wall and what is be open below being secured within leads power device inner wall to lead power device, and the level is led
Power plate and it is described it is vertical lead power plate 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 be tubular structure, include the control shaft positioned at middle part, top, side wall and positioned 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 outlet that the other end is opened up by the side wall and top of the stiffness reliability device respectively are pierced by, 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
Wall；The bottom of disk spring is fixedly connected with disk；By rotating the adjuster of stiffness reliability device bottom, described in part
Sheet annular spring and the part disk spring are screwed in and are compressed in the stiffness reliability device, are arranged in the lower part of control shaft
There is antiseepage bearing；
The antiseepage paulin closed type be fixed in it is described lead inside power apparatus 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 apparatus, and be immersed in ER fluid
In, it is pierced by by the power apparatus lower openings of leading positioned at antiseepage bearing low portion；
In the both 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,
Size for adjusting voltage of the load on positive and negative pole plate；
The force application apparatus includes X flat to applicator, Y-direction applicator, Z-direction applicator, the first movable platform and the second activity
Platform, the first movable platform are placed in second movable platform, and the second movable platform is placed on foundation structure pedestal；The Z-direction
Applicator is fixed in first movable platform, and force application rod is fixedly connected with the lower part of connecting elements；The X is to applicator
Be fixed in second movable platform, force application rod is horizontally fixed on the lateral plate of first movable platform, for
First movable platform apply X to power；The Y-direction applicator is fixed on the pedestal, and force application rod is horizontally fixed on described
On the lateral plate of second movable platform, the power for applying Y-direction to the second movable platform；Force application rods and Y of the X to applicator
To the rectangular relationship of force application rod of applicator；
The connecting elements top is fixedly connected with adjuster.
2. pilot system according to claim 1, which is characterized in that the level leads power plate and leads power device longitudinal direction point described in
Cloth, horizontal nest are simultaneously fixed in and described lead power device outer wall；The vertical power plate of leading leads power device outer wall in cross distribution described in, erects
Power plate interlayer is led to being fitted into and being fixed in the level.
3. pilot system according to claim 1, which is characterized in that the power device outer wall section of leading is round, leads power
Device inner wall section is square.
4. pilot system according to claim 1, which is characterized in that the structure of the applicator in three directions is identical, each
Applicator includes force application rod and is connected to the sleeve of force application rod by bearing, and locating shaft is fixed on sleeve, by positioning
The positioning of axis changes the orientation of force application rod, and the force application rod of Z-direction applicator is vertical direction, and X exerts a force to applicator and Y-direction applicator
Bar is horizontal direction.
5. pilot system according to claim 1, which is characterized in that the connecting elements includes offering gathering hole simultaneously
The barrel-type casing being placed in the first movable platform, connecting elements are laterally equipped with two pieces of protruding portions, each cloth of two pieces of protruding portions
It is equipped with the idler wheel being in contact with the barrel-type casing inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540693.1A CN108594292B (en) | 2018-05-30 | 2018-05-30 | Test system suitable for simulating foundation artificial boundary of earthquake multi-point input |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512718A (en) * | 2013-10-09 | 2014-01-15 | 江苏交科工程检测技术有限公司 | Prediction-correction mixed testing method based on earthquake model |
| CN104749628A (en) * | 2015-03-30 | 2015-07-01 | 西安交通大学 | Absorbing boundary reflection method based on dispersal viscosity wave equation |
| CN104809356A (en) * | 2015-05-19 | 2015-07-29 | 河海大学 | Aqueduct fluid-solid coupling seismic response analysis method considering large-amplitude sloshing of water |
| DE102015000306A1 (en) * | 2015-06-29 | 2016-12-29 | Bernd Seidel | Method and apparatus for earthquake, monster wave ... |
| JP2017125737A (en) * | 2016-01-13 | 2017-07-20 | 株式会社Ihi | Vibration testing device, and vibration testing method |
| CN107907285A (en) * | 2017-12-13 | 2018-04-13 | 中南大学 | A kind of model casing and its bath scaled model experimental device and application method for large scale size shaketalle test |
| CN208459606U (en) * | 2018-05-30 | 2019-02-01 | 天津大学 | A kind of pilot system of the ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field |
-
2018
- 2018-05-30 CN CN201810540693.1A patent/CN108594292B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512718A (en) * | 2013-10-09 | 2014-01-15 | 江苏交科工程检测技术有限公司 | Prediction-correction mixed testing method based on earthquake model |
| CN104749628A (en) * | 2015-03-30 | 2015-07-01 | 西安交通大学 | Absorbing boundary reflection method based on dispersal viscosity wave equation |
| CN104809356A (en) * | 2015-05-19 | 2015-07-29 | 河海大学 | Aqueduct fluid-solid coupling seismic response analysis method considering large-amplitude sloshing of water |
| DE102015000306A1 (en) * | 2015-06-29 | 2016-12-29 | Bernd Seidel | Method and apparatus for earthquake, monster wave ... |
| JP2017125737A (en) * | 2016-01-13 | 2017-07-20 | 株式会社Ihi | Vibration testing device, and vibration testing method |
| CN107907285A (en) * | 2017-12-13 | 2018-04-13 | 中南大学 | A kind of model casing and its bath scaled model experimental device and application method for large scale size shaketalle test |
| CN208459606U (en) * | 2018-05-30 | 2019-02-01 | 天津大学 | A kind of pilot system of the ground foundation simulation Artificial Boundaries suitable for earthquake Random seismic field |
Non-Patent Citations (2)
| Title |
|---|
| 杨正权 等: "土石坝地震动输入机制研究综述", 《中国水利水电科学研究院学报》 * |
| 柳国环 等: "地震差动下边界-地基-斜拉桥体系破坏特征", 《土木工程与管理学报》 * |
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