CN208520544U - Real-time bulk testing load counterforce device - Google Patents
Real-time bulk testing load counterforce device Download PDFInfo
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- CN208520544U CN208520544U CN201821181046.8U CN201821181046U CN208520544U CN 208520544 U CN208520544 U CN 208520544U CN 201821181046 U CN201821181046 U CN 201821181046U CN 208520544 U CN208520544 U CN 208520544U
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- actuator
- reaction frame
- steel
- steel reaction
- minor structure
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Abstract
The utility model discloses a kind of real-time bulk testing load counterforce devices, it include: bottom steel base seat, steel reaction frame, actuator support platform and actuator mounting base, wherein, steel reaction frame is connected at the upper side of the steel base seat of bottom, the other side connects actuator support platform above the steel base seat of bottom, is hingedly connected with actuator in actuator mounting base；Minor structure is tested in setting between steel reaction frame and actuator, and side and the test minor structure one end power transmission connection of actuator are closed on the steel reaction frame, and the driving part for testing the minor structure other end and actuator is rigidly connected；The coarse adjustment of the straight line spacing between steel reaction frame and actuator is realized by first position regulating mechanism in the bottom of the steel reaction frame；It is equipped with second position regulating mechanism between the steel reaction frame and test minor structure, fine-tuning for the straight line spacing between steel reaction frame and actuator is realized by second position regulating mechanism.
Description
Technical field
The utility model belongs to Construction Anti-earthquake test field more particularly to a kind of real-time bulk testing load counter-force
Device.
Background technique
Traditional earthquake-resistant structure test method creates repetition loading method from pseudo-static experimental, develops to pseudo
The shaking-table test method of comparative maturity by now again.Although earthquake simulation shaking table is the most frequently used at this stage most can
Reflect manual simulation's means of structure truth under geological process, but majority can only all carry out scale (model) test.So
And modern building fabric development trend is enlargement, complicates, and the test result that scaled model obtains is unable to entirely accurate
It calculates in actual experimental structure.And shake table and corollary equipment price and design-build somewhat expensive, cause shake table to try
Test costly, test process complexity.
Bulk testing is that the non-linear relatively strong or stress complex component for being not easy numerical simulation in structure is sub as test
Structure, the part of other easy simulations by host computer and actuator slave computer connection communication and are calculated as numerical value minor structure,
Realize dynamic response analysis of the full structure under geological process.
And existing bulk testing is all based on large-scale Hydrauservo System, scale, experimental facilities energy to laboratory
The outfit requirement of power, the number of units of host computer and performance and various aspects personnel amount is all very high, and whole system builds complexity, examination
It is high to test expense, hardly results in and really promotes and apply.
Therefore, reduce experimentation cost, reduce bulk testing research threshold, allow combined experiments platform really promoted and
Using as the matter of great urgency.
Utility model content
In view of the above technical problems, the utility model provides a kind of real-time bulk testing load counterforce device, this is in real time
It is easy to operate that bulk testing uses the installation of load counterforce device and work adjusting method to have, and adjustability is good, degree of regulation height etc.
Feature.
In order to achieve the above technical purposes, the utility model uses following specific technical solution:
A kind of real-time bulk testing load counterforce device, comprising:
Bottom steel base seat, steel reaction frame, actuator support platform and actuator mounting base, wherein in the steel base seat of bottom
Square side connects steel reaction frame, connection actuator support platform in the other side above the steel base seat of bottom, hinged in actuator mounting base
It is connected with actuator；
Minor structure is tested in setting between steel reaction frame and actuator, and side and the examination of actuator are closed on the steel reaction frame
Minor structure one end power transmission connection is tested, the driving part for testing the minor structure other end and actuator is rigidly connected；
The straight line between steel reaction frame and actuator is realized by first position regulating mechanism in the bottom of the steel reaction frame
The coarse adjustment of spacing；
It is equipped with second position regulating mechanism between the steel reaction frame and test minor structure, passes through second position regulating mechanism
Realize fine-tuning for the straight line spacing between steel reaction frame and actuator；
Temperature control box, the temperature control box is removably connected to outside test minor structure, for the test to test minor structure
Temperature is adjusted.
The first position regulating mechanism includes adjusting steel plate, adjusts the bottom that Interal fixation is connected to steel reaction frame, is adjusted
It saves bolt assembled between steel plate and bottom steel base seat to connect, the power transmission direction uniform intervals adjusted on steel plate along actuator
Arrange multiple bolt connecting holes；Realize that steel is anti-by adjusting adjusting bolt hole corresponding position between steel reaction frame and bottom steel base seat
The coarse adjustment of straight line spacing between power frame and actuator.
The first position regulating mechanism includes sliding block, and the sliding block is fixedly connected on the bottom of steel reaction frame, the bottom
It is equipped with elongated slot along actuator power transmission direction in portion's steel base seat, the bottom of steel reaction frame passes through sliding block company of sliding in the elongated slot
It connects, to adjust the straight line spacing between steel reaction frame and actuator, and is locked by locking system.
The second position regulating mechanism includes counter-force threaded rod, and the counter-force threaded rod is set to steel reaction frame and test
Between minor structure, between adjusting between steel reaction frame and counter-force threaded rod many threads realization steel reaction frame and test minor structure
Away from fine-tune.
Along several bolts hole of the power transmission direction uniform intervals of actuator, the actuator in the actuator support platform
Level tune is carried out by bolt hole between mounting base and actuator support platform, guarantees that actuator precisely connects with test minor structure
It connects.
The bolt is liftable bolt, according to actuator size, by adjusting the vertical position of liftable bolt,
Realize that actuator connecting rod, test minor structure are in same level straight line.
Bottom steel base bottom dress is equipped with levelling tube in bottom steel base platform, passes through tune there are four steel tray is gone up and down
The many threads and observation levelling tube of section lifting steel tray realize that entire bottom steel base seat is in level.
Compared with the prior art, technical solutions of the utility model have the beneficial effect that
The first, the real-time bulk testing load counterforce device of the utility model can be according to test of different sizes
Structure carries out structural adjustment, and degree of regulation is high.
The second, the real-time bulk testing load counterforce device of the utility model combines real-time mixed test system can be into
The real-time bulk testing of the large tonnage speed relationship type test minor structure of row, increases substantially its application range, Neng Gougeng
Add true progress bulk testing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the real-time bulk testing of the utility model loads counterforce device；
Fig. 2 is the real-time mixed test system structural schematic diagram of the utility model；
Tri- layers of viscoplasticity shock frame structure chart of Fig. 3；
Fig. 4 is the bottom displacement comparison figure that the utility model adds and do not add viscoplasticity damper；
Fig. 5 is the bottom velocity comparison diagram that the utility model adds and do not add viscoplasticity damper；
Fig. 6 is the bottom acceleration comparison diagram that the utility model adds and do not add viscoplasticity damper；
Wherein, 1 is host computer；2 be slave computer；3 be power amplifier；4 be sensor；4-1 is resistance strain gage tension and compression
Force snesor；4-2 is device for sensing linear displacement caused by magnetostriction；5 be actuator；6 be constant voltage source；7 be load counterforce device；7-
1 is actuator support platform；7-2 is actuator mounting base；7-3 is steel reaction frame；7-4 is counter-force threaded rod；7-5 is bottom
Steel base seat；7-6 is bolt；7-7 is liftable bolt；8 be temperature control box；9 be viscoplasticity damper；10 be steel tray；11 be water
Quasi- pipe.
Specific embodiment
According to following embodiments, the utility model may be better understood.However, those skilled in the art is easy reason
It solves, content described in embodiment is merely to illustrate the utility model, detailed without that should will not limit institute in claims
The utility model carefully described.
Embodiment
As shown in Figure 1, the structural schematic diagram of the utility model real-time bulk testing load counterforce device, comprising: bottom
Steel base seat 7-5, steel reaction frame 7-3, actuator support platform 7-1 and actuator mounting base 7-2, wherein bottom steel base seat 7-5
Upper side connects steel reaction frame 7-3, and the other side connects actuator support platform 7-1, actuator peace above the steel base seat 7-5 of bottom
Actuator 5 is hingedly connected on dress seat 7-2；Setting test minor structure, the steel counter-force between steel reaction frame 7-3 and actuator 5
Side and the test minor structure one end power transmission connection of actuator 5, the test minor structure other end and actuator 5 are closed on frame 7-3
Driving part rigid connection；The bottom of the steel reaction frame 7-3 steel reaction frame 7-3 and work are realized by first position regulating mechanism
The coarse adjustment of straight line spacing between dynamic device 5；The second position, which is equipped with, between the steel reaction frame 7-3 and test minor structure adjusts machine
Structure realizes fine-tuning for the straight line spacing between steel reaction frame 7-3 and actuator 5 by second position regulating mechanism；It is described
Temperature control box 8 is removably connected to outside test minor structure, is adjusted for the test temperature to test minor structure.
Fig. 2 is that the real-time bulk testing of the utility model loads the knot after counterforce device is connected with real-time mixed test system
Structure schematic diagram, including real-time bulk testing load counterforce device, host computer 1, slave computer 2, power amplifier 3, resistance-strain
Piece pull pressure sensor 4-1, device for sensing linear displacement caused by magnetostriction 4-2, actuator 5, constant voltage source 6, temperature control box 8.
Further, the first position regulating mechanism includes adjusting steel plate, adjusts Interal fixation and is connected to steel reaction frame
The bottom of 7-3 adjusts bolt assembled between steel plate and bottom steel base seat 7-5 and connects, along actuator 5 on the adjusting steel plate
Power transmission direction uniform intervals arrange multiple bolt connecting holes；It is adjusted between steel reaction frame 7-3 and bottom steel base seat 7-5 by adjusting
Save the coarse adjustment for the straight line spacing that bolt hole corresponding position is realized between steel reaction frame 7-3 and actuator 5.
Further, the first position regulating mechanism includes sliding block, and the sliding block is fixedly connected on steel reaction frame 7-3
Bottom, be equipped with elongated slot along 5 power transmission direction of actuator on the bottom steel base seat 7-5, the bottom of steel reaction frame 7-3 passes through cunning
Block is slidably connected in the elongated slot, to adjust the straight line spacing between steel reaction frame 7-3 and actuator 5, and is filled by locking
Set locking.
Further, the second position regulating mechanism includes counter-force threaded rod 7-4, the counter-force threaded rod 7-4 setting
Between steel reaction frame 7-3 and test minor structure, realized by adjusting steel reaction frame 7-3 and counter-force threaded rod 7-4 many threads
Spacing fine-tunes between 9 test specimen of steel reaction frame 7-3 and viscoplasticity damper.
Further, the vertical direction uniform intervals on the actuator support platform 7-1 along the power transmission of actuator 5 are several
A bolt hole carries out Level tune by bolt hole between the actuator mounting base 7-2 and actuator support platform 7-1, protects
Card actuator 5 is precisely connect with test minor structure.
Further, the bolt is liftable bolt 7-7, according to 5 size of actuator, by adjusting liftable spiral shell
The vertical position of bolt 7-7 realizes that 5 connecting rod of actuator, test minor structure are in same level straight line.
Further, the bottom bottom steel base seat 7-5 dress is there are four liftable steel tray 10, on the steel base seat 7-5 platform of bottom
Levelling tube is installed, realizes entire bottom steel base seat by many threads and observation levelling tube 11 that adjust liftable steel tray 10
7-5 is in level.Actuator support platform 7-1, steel reaction frame 7-3, bottom steel base seat 7-5, it is all made of I-steel, makes whole dress
Setting both has big rigidity, meets the stability of structure, effectively avoids resonating, and can save steel.
As shown in figure 3, being mixed by taking three layers of viscoplasticity shock frame structure as an example using above-mentioned real-time mixed test system
Close test.Structure is three story frame structures, and first layer is equipped with viscoplasticity damper.
It takes viscoplasticity damper for test minor structure in this bulk testing, is controlled temperature at 10 DEG C using temperature control box.
The stiffness matrix and damping matrix of numerical value minor structure are respectively KN、CN, the rigidity and damping for testing minor structure is respectively
KE、CE, the mass matrix of three story frame structures is M.
Wherein, design parameter value are as follows:
The seismic wave inputted when test is E1-Centro wave, acceleration peak value 15gal.Structural damping uses
Rayleigh damping, it is assumed that damping matrix C is the linear combination of mass matrix and stiffness matrix, i.e., system be proportional damping or
Rayleigh damping.Damping matrix is calculated
Three story frame structures added under geological process with do not add comparison of test results such as Fig. 4 of viscoplasticity damper~
Shown in Fig. 6.Adding the bottom of damper frame structure bulk testing under geological process to be displaced maximum value is 0.683mm, minimum value
For -0.548mm；Speed maximum value is 9.8mm/s, and minimum value is -11.1mm/s；Acceleration maximum value is 0.24m/s2, minimum
Value is -0.29m/s2；Not plus damper frame structure under geological process bottom displacement maximum value be 1.187mm, minimum value be-
1.24mm；Speed maximum value is 17.2mm/s, and minimum value is -20.7mm/s；Acceleration maximum value is 0.336m/s2, minimum value
For -0.328m/s2.Adding the bottom of damper afterframe structure to be displaced maximum value reduces 55.8%, and speed maximum value reduces
46.4%, acceleration maximum value reduces 28.6%.From the foregoing, it can be seen that frame structure bottom power after adding viscoplasticity damper
Response is obviously reduced, and illustrates that viscoplasticity damper damping effect is preferable.
Claims (7)
1. a kind of real-time bulk testing load counterforce device, it is characterised in that: include:
Bottom steel base seat, steel reaction frame, actuator support platform and actuator mounting base, wherein one above the steel base seat of bottom
Side connects steel reaction frame, and the other side connects actuator support platform above the steel base seat of bottom, is articulated and connected in actuator mounting base
There is actuator；
Minor structure is tested in setting between steel reaction frame and actuator, and side and test of actuator are closed on the steel reaction frame
Structure one end power transmission connection, the driving part for testing the minor structure other end and actuator are rigidly connected；
The straight line spacing between steel reaction frame and actuator is realized by first position regulating mechanism in the bottom of the steel reaction frame
Coarse adjustment；
It is equipped with second position regulating mechanism between the steel reaction frame and test minor structure, is realized by second position regulating mechanism
Straight line spacing between steel reaction frame and actuator fine-tunes；
Temperature control box, the temperature control box is removably connected to outside test minor structure, for the test temperature to test minor structure
It is adjusted.
2. real-time bulk testing according to claim 1 load counterforce device, which is characterized in that the first position tune
Saving mechanism includes adjusting steel plate, adjusts the bottom that Interal fixation is connected to steel reaction frame, is adjusted between steel plate and bottom steel base seat
The connection of bolt assembled, described adjust arrange multiple bolt connecting holes along the power transmission direction uniform intervals of actuator on steel plate；It is logical
It overregulates straight between adjusting bolt hole corresponding position realization steel reaction frame and actuator between steel reaction frame and bottom steel base seat
The coarse adjustment of line spacing.
3. real-time bulk testing according to claim 1 load counterforce device, it is characterised in that: the first position tune
Saving mechanism includes sliding block, and the sliding block is fixedly connected on the bottom of steel reaction frame, along actuator power transmission in the bottom steel base seat
Direction is equipped with elongated slot, and the bottom of steel reaction frame is slidably connected in the elongated slot by sliding block, to adjust steel reaction frame and actuation
Straight line spacing between device, and locked by locking system.
4. any real-time bulk testing load counterforce device according to claim 1~3, it is characterised in that: described
Second position regulating mechanism includes counter-force threaded rod, and the counter-force threaded rod is set between steel reaction frame and test minor structure,
The fine tune of spacing between steel reaction frame and test minor structure is realized by adjusting steel reaction frame and counter-force threaded rod many threads
Section.
5. real-time bulk testing according to claim 1 load counterforce device, which is characterized in that the actuator support
Along several bolts hole of the power transmission direction uniform intervals of actuator, the actuator mounting base and actuator support platform on platform
Between by bolt hole carry out Level tune, guarantee actuator with test minor structure precisely connect.
6. real-time bulk testing according to claim 2 load counterforce device, it is characterised in that: the bolt is that can rise
Bolt is dropped, actuator connecting rod, test are realized by adjusting the vertical position of liftable bolt according to actuator size
Minor structure is in same level straight line.
7. real-time bulk testing according to claim 1 load counterforce device, it is characterised in that: bottom steel base bottom
Dress is equipped with levelling tube in bottom steel base platform there are four steel tray is gone up and down, by many threads for adjusting lifting steel tray
Realize that entire bottom steel base seat is in level with observation levelling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181046.8U CN208520544U (en) | 2018-07-24 | 2018-07-24 | Real-time bulk testing load counterforce device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181046.8U CN208520544U (en) | 2018-07-24 | 2018-07-24 | Real-time bulk testing load counterforce device |
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| Publication Number | Publication Date |
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| CN208520544U true CN208520544U (en) | 2019-02-19 |
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ID=65334653
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| CN201821181046.8U Expired - Fee Related CN208520544U (en) | 2018-07-24 | 2018-07-24 | Real-time bulk testing load counterforce device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982039A (en) * | 2018-07-24 | 2018-12-11 | 东南大学 | Bulk testing load counterforce device, real-time mixed test system and its test method |
-
2018
- 2018-07-24 CN CN201821181046.8U patent/CN208520544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982039A (en) * | 2018-07-24 | 2018-12-11 | 东南大学 | Bulk testing load counterforce device, real-time mixed test system and its test method |
| CN108982039B (en) * | 2018-07-24 | 2023-09-22 | 东南大学 | Loading counterforce device for mixing test, real-time mixing test system and test method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20210724 |