CN106768764A - A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal vibration load - Google Patents
A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal vibration load Download PDFInfo
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- CN106768764A CN106768764A CN201710030406.8A CN201710030406A CN106768764A CN 106768764 A CN106768764 A CN 106768764A CN 201710030406 A CN201710030406 A CN 201710030406A CN 106768764 A CN106768764 A CN 106768764A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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Abstract
The present invention relates to a kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal vibration load.By fixed system, 2 actuator systems and 2 vibration table surface system compositions, 2 actuator systems and 2 vibration table surface system architectures are identical, fixed system is by base, 2 actuator fixed supports and 2 shake table slide rail compositions, actuator system is by actuator, actuator expansion link bayonet apparatus, actuator expansion link and actuator acceleration transducer are constituted, vibration table surface system is by vibration table surface, shake table sliding block and vibration table surface connects bayonet socket device are constituted, the present invention needs to be fixedly secured two agent structures of subjects on 2 vibration table surfaces respectively, 2 actuator export setting exciting respectively, it is in the integrally-built structural response under two different earthquake horizontal vibrations are acted on respectively by synergy measurement two agent structures of subjects of device, mechanical characteristic and failure mode.
Description
Technical field
The invention belongs to Structural Engineering and earthquake engineering technical field, and in particular to one kind can separately provide single-degree-of-freedom level
The Double earthquakes model test apparatus of oscillatory load.
Background technology
Building structure can exist two or more in addition to it there is translational vibration, also because of some buildings under geological process
Agent structure, such as bridge, two tall buildings building, its different subjects structure present position motion of ground each point in earthquake are deposited
There is earthquake zone tomography in phase difference, or between two agent structures are in position, the earthquake response in earthquake is extremely complex,
Merit attention.At present, what is caused for there is phase difference due to ground motion has two earthquakes of the building of agent structure
The research of effect is still not mature enough, at present still can not be with theoretical explanation or this phenomenon of numerical simulation, it is necessary to be tested
Research, develops still insufficient with studying this mechanism ground experimental rig.Simulation earthquake vibration ground shaketalle test is based on to put down
Platform, by being designed to provide the Double earthquakes model test apparatus for separately providing single-degree-of-freedom horizontal vibration load, can make
This respect research is smoothed out.
The content of the invention
It is an object of the invention to provide a kind of Double earthquakes model that can separately provide single-degree-of-freedom horizontal vibration load
Experimental rig.
The Double earthquakes model test apparatus for separately providing single-degree-of-freedom horizontal vibration load proposed by the present invention, by fixing
System, the first actuator system, the first vibration table surface system, the second actuator system, the second vibration table surface system composition,
The structure of the first actuator system and the second actuator system is identical, the first vibration table surface system and the second vibration table surface system
The structure of system is identical, and the first actuator system and the second actuator system and the first vibration table surface system and second vibrate
Platform table system is symmetrically distributed on fixed system；Wherein：
Fixed system is by base, the first actuator fixed support, the first shake table slide rail, the second actuator fixed support, second
Shake table slide rail is constituted, and the first shake table slide rail and the second shake table slide rail are symmetrically welded on base, the first actuator
Fixed support and the second actuator fixed support are symmetrically welded on base；
First actuator system or the second actuator system are by actuator, shake table actuator expansion link bayonet apparatus, shake table
Actuator expansion link and shake table actuator acceleration transducer are constituted, and the actuator is welded on actuator fixed support,
One end is connected with shake table actuator acceleration transducer, shake table actuator expansion link one end and shake table actuator acceleration
Sensor is connected, and the other end passes through actuator, and shake table actuator expansion link bayonet apparatus are consolidated with shake table actuator expansion link
Fixed connection；
Table system is by vibration table surface, shake table sliding block and vibration table surface in first vibration table surface system or the second vibration
Connects bayonet socket device is constituted, and the shake table sliding block is welded in vibration table surface lower section, the weldering of vibration table surface connects bayonet socket device
Vibration table surface side is connected to, by inserting vibration table surface fixing threaded hole after vibration table surface fixing bolt joint test component
In be fixedly secured with vibration table surface；Structural model is fixed on vibration table surface by vibration table surface fixing bolt；
Shake table actuator expansion link bayonet apparatus and vibration table surface connects bayonet socket device are fixed by shake table bayonet apparatus
Bolted splice is connected, and shake table sliding block and shake table slide rail are slidably connected, and make actuator system, vibration table surface system and fixation
System forms independent single dof mobility system, and flexible by shake table actuator expansion link makes vibration table surface system edge
Shake table slide rail is slided.
In the present invention, the first shake table slide rail and the second shake table slide rail quantity are two, and specification complete
Sample, is respectively welded on base, and the shake table sliding block quantity of table system is each in the first vibration table surface system or the second vibration
It is 6, and specification is just the same, respectively according to the position uniform welding of the first shake table slide rail and the second shake table slide rail in phase
Below the vibration table surface answered.
In the present invention, the first vibration table surface system of the model and the first actuator system are stretched by shake table actuator
Contracting bar bayonet apparatus and vibration table surface connects bayonet socket device be articulated and connected by the first shake table bayonet apparatus fixing bolt and
It is not fixedly secured, is articulated and connected it is possible to prevente effectively from whole system is due to the actuator expansion link of the first actuator system and
Not parallel " stuck " for causing of one shake table slide rail, and smooth slip.
In the present invention, the second vibration table surface system of the model and the second actuator system are stretched by shake table actuator
Contracting bar bayonet apparatus and vibration table surface connects bayonet socket device are articulated and connected by the second shake table bayonet apparatus fixing bolt 19
Rather than being fixedly secured, it is articulated and connected it is possible to prevente effectively from whole system is due to the actuator expansion link 20 of the second actuator system
" stuck " for causing not parallel with the second shake table slide rail, and smooth slip.
In the present invention, two independent shaking table systems of the model are respectively by two independent actuator system controls
Two agent structures of subjects can accurately be exported the horizontal earthquake load being ignorant of by system respectively according to actual condition.
The course of work of the invention：
Say two agent structures of experiment test specimen respectively after vibration table surface fixing bolt 23 is connected through vibration table surface
Fixing threaded hole 22 be fixedly secured on the first vibration table surface 4 and the second vibration table surface 14 on.Pass through the first actuator 3 respectively
Effect to the first actuator expansion link 10 drives the first shake table actuator expansion link bayonet apparatus 8 to move forward and backward, and first shakes
Dynamic platform actuator expansion link bayonet apparatus 8 drive the first shake table by the connection of the first shake table bayonet apparatus fixing bolt 9
Table top connects bayonet socket device 7 is moved forward and backward and then drives whole first shaking table system to be moved forward and backward along the first shake table slide rail 5,
And by the control to the first actuator, based on the exciting input of different tests purpose setting shake table, carry out shaketalle test；
The setting of the second shaking table system and the course of work are with the first shaking table system.Two shaking table systems are separate, can basis
Test objective is respectively provided with two exciting inputs of shake table, and passes through the first actuator acceleration transducer 11 and second respectively
Two action responses of agent structure of the analysis experiment test specimen of actuator acceleration transducer 21, two agent structures of research are present
Phase difference, or two agent structures are between position the architectural characteristic that there are different vibration inputs in the case of earthquake zone tomography
And failure mode.
Beneficial effects of the present invention：
The great advantage of apparatus of the present invention makes to measure building in the presence of two agent structures and be in two respectively mutually solely
Overall structure action characteristic and failure mode under vertical effect output.Structural vibration table test can study test specimen in two independences
On shake table and the characteristics of motion occurred during different vibration inputs is set, filled up at present to double agent structure Antiseismic buildings
The blank of experimental study.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention.
Fig. 2 is front view of the invention.
Fig. 3 is left view of the invention.
Fig. 4 is right view of the invention.
Fig. 5 is top view of the invention.
Fig. 6 is rearview of the invention.
Fig. 7 is removal vibration table of the invention（4）、（14）Schematic diagram afterwards.
Fig. 8 is the schematic diagram of experimental example of the invention.
Label in figure：
1 is base, and 2 is the first actuator fixed support, and 3 is the first actuator, and 4 is the first vibration table surface, and 5 is the first vibration
Platform slide rail, 6 is the first shake table sliding block, and 7 is the first vibration table surface connects bayonet socket device, and 8 stretch for the first shake table actuator
Contracting bar bayonet apparatus, 9 is the first shake table bayonet apparatus fixing bolt, and 10 is the first shake table actuator expansion link, and 11 is the
One shake table actuator acceleration transducer, 12 is the second actuator fixed support, and 13 is the second actuator, and 14 is the second vibration
Platform table top, 15 is the second shake table slide rail, and 16 is the second shake table sliding block, and 17 is the second vibration table surface connects bayonet socket device,
18 is the second shake table actuator expansion link bayonet apparatus, and 19 is the second shake table bayonet apparatus fixing bolt, and 20 shake for second
Dynamic platform actuator expansion link, 21 is the second shake table actuator acceleration transducer, and 22 is vibration table surface fixing threaded hole, and 23 are
Vibration table surface fixing bolt, 24 is the "door" type board-like reduced scale frame models of three layers of post in embodiment.
Specific embodiment
The invention is further illustrated by the following examples.
Embodiment 1：
As Figure 1-Figure 8, experimental rig is made by fixed system, the first actuator system, the first vibration table surface system, second
Dynamic device system, the second vibration table surface system composition.Wherein：
Fixed system by base 1, the first actuator fixed support 2, the first shake table slide rail 5, the second actuator fixed support 12,
Second shake table slide rail 15 is constituted, and the first actuator fixed support 2, the first shake table slide rail 5, the second actuator fix branch
Frame 12, the second shake table slide rail 15 are respectively welded on base 1；
First actuator system vibrates decometer by the first actuator 3, the first shake table actuator expansion link bayonet apparatus 8, first
Mouth device fixing bolt 9, the first shake table actuator expansion link 10, the first shake table actuator acceleration transducer 11 are constituted,
First actuator system, first actuator 3 is welded on the first actuator fixed support 2, one end and the first shake table start
Device acceleration transducer 11 is connected, and the first shake table actuator expansion link 10 is stretched out from the other end, and the first shake table actuator is stretched
Contracting bar bayonet apparatus 8 are fixedly secured with the first shake table actuator expansion link 10；
First vibration table surface system is by the first vibration table surface 4, the first shake table sliding block 6, the first vibration table surface connection card
Mouth device 7, vibration table surface fixing threaded hole 22, vibration table surface fixing bolt 23 are constituted, and the first shake table sliding block 6 is distinguished
It is welded in below the first vibration table surface 4, the first vibration table surface connects bayonet socket device 7 is welded on the side of the first vibration table surface 4,
Vibration table surface fixing threaded hole 22 is evenly distributed on the first vibration table surface 4, is connected by vibration table surface fixing bolt 23
It is fixedly secured with vibration table surface 4 in insertion vibration table surface fixing threaded hole 22 after test component；
Second actuator system is by the second actuator 13, the second shake table actuator expansion link bayonet apparatus 18, the second shake table
Bayonet apparatus fixing bolt 19, the second shake table actuator expansion link 20, the second 21 groups of shake table actuator acceleration transducer
Into second actuator 13 is welded on the second actuator fixed support 12, one end and the second shake table actuator acceleration
Sensor 21 is connected, and the second shake table actuator expansion link 20 stretches out from the other end, the second shake table actuator expansion link bayonet socket
Device 18 is fixedly secured with the second shake table actuator expansion link 20；
Second vibration table surface system is connected by the second vibration table surface 14, the second shake table sliding block 16, the second vibration table surface
Bayonet apparatus 17, vibration table surface fixing threaded hole 22, vibration table surface fixing bolt 23 are constituted, the second shake table sliding block 16
It is welded in respectively below the second vibration table surface 14, the second vibration table surface connects bayonet socket device 17 is welded on the second vibration table surface
14 sides, vibration table surface fixing threaded hole 22 is evenly distributed on the second vibration table surface 14, and spiral shell is fixed by vibration table surface
It is fixedly secured with vibration table surface 14 in insertion vibration table surface fixing threaded hole 22 after the joint test component of bolt 23.
In the present invention, the shake table actuator expansion link bayonet apparatus 8 and first of the first actuator system of the model
The vibration table surface connects bayonet socket device 7 of vibration table surface system is articulated and connected by the first shake table bayonet apparatus fixing bolt 9,
The first shake table sliding block 6 of the first vibration table surface system and the first shake table slide rail 5 of fixed system are slidably connected simultaneously, make
First actuator system, the first vibration table surface system and fixed system form independent single dof mobility system, by
The flexible of shake table actuator expansion link 10 in one actuator system makes the first vibration table surface system be slided along the first shake table
Rail 5 is slided.
The shake table actuator expansion link bayonet apparatus 18 and the second shake table platform of the second actuator system of the model
The vibration table surface connects bayonet socket device 17 of plane system is articulated and connected by the second shake table bayonet apparatus fixing bolt 19, while the
Second shake table sliding block 16 of two vibration table surface systems and the second shake table slide rail 15 of fixed system are slidably connected, and make second
Actuator system, the second vibration table surface system and fixed system form independent single dof mobility system, make by second
The flexible of shake table actuator expansion link 20 in dynamic device system makes the second vibration table surface system along the second shake table slide rail 15
Slide.
The first shake table slide rail 5 and the quantity of the second shake table slide rail 15 of the shake table of the model are respectively two, and rule
Lattice are just the same, are respectively welded on base 1, and the first shake table sliding block 6 and the quantity of the second shake table sliding block 16 are respectively 6, and
Specification is just the same, is shaken first according to the position uniform welding of the first shake table slide rail 5 and the second shake table slide rail 15 respectively
Below dynamic platform table top 4 and the second vibration table surface 14.
The present embodiment is the setting of the prefabrication and assembly construction concrete board-like reduced scale structural model experimental rig of three layers of post, shake table platform
Face 4,14 is shaped as square, in the center of vibration table surface 4 according to being arranged symmetrically the "door" type board-like reduced scale framework knot of three layers of post
The left body portion of structure model, in the center of vibration table surface 14 according to being arranged symmetrically the "door" type board-like reduced scale frame structure mould of three layers of post
The right body portion of type, with 16 vibration table surface fixing bolts 23 by 4 support columns and shake table of the left body portion of structural model
Table top 4 is fixedly secured, same with 16 vibration table surface fixing bolts 23 are by 4 support columns of the left body portion of structural model and shake
Dynamic platform table top 14 is fixedly secured.Based on the exciting input of different tests purpose setting shake table, shaketalle test is carried out, in experiment
First shake table and the exciting situation of the second shake table input can be chosen according to requirement of experiment phase difference or completely inconsistent
Waveform, detects the torsion vibration response of structural model by acceleration transducer in experimentation, study "door" type prefabrication and assembly construction
Mechanical characteristic and brokenization form of the three layers of board-like reduced scale structural model of post of concrete in the case of different vibration inputs, reference picture 1 ~
8, those skilled in the art can smoothly implement.
Claims (3)
1. it is a kind of earthquake is provided to topple the shaking table model device of oscillatory load, by fixed system, the first actuator system,
First vibration table surface system, the second actuator system, the second vibration table surface system composition, it is characterised in that：
By fixed system, the first actuator system, the first vibration table surface system, the second actuator system, the second shake table platform
Plane system is constituted, and the structure of the first actuator system and the second actuator system is identical, the first vibration table surface system and second
The structure of vibration table surface system is identical, the first actuator system and the second actuator system and the first vibration table surface system
System and the second vibration table surface symmetry system having symmetry are distributed on fixed system；Wherein：
Fixed system is by base, the first actuator fixed support, the first shake table slide rail, the second actuator fixed support, second
Shake table slide rail is constituted, and the first shake table slide rail and the second shake table slide rail are symmetrically welded on base, the first actuator
Fixed support and the second actuator fixed support are symmetrically welded on base；
First actuator system or the second actuator system are by actuator, shake table actuator expansion link bayonet apparatus, shake table
Actuator expansion link and shake table actuator acceleration transducer are constituted, and the actuator is welded on actuator fixed support,
One end is connected with shake table actuator acceleration transducer, shake table actuator expansion link one end and shake table actuator acceleration
Sensor is connected, and the other end passes through actuator, and shake table actuator expansion link bayonet apparatus are consolidated with shake table actuator expansion link
Fixed connection；
Table system is by vibration table surface, shake table sliding block and vibration table surface in first vibration table surface system or the second vibration
Connects bayonet socket device is constituted, and the shake table sliding block is welded in vibration table surface lower section, the weldering of vibration table surface connects bayonet socket device
Vibration table surface side is connected to, by inserting vibration table surface fixing threaded hole after vibration table surface fixing bolt joint test component
In be fixedly secured with vibration table surface；Structural model is fixed on vibration table surface by vibration table surface fixing bolt；
Shake table actuator expansion link bayonet apparatus and vibration table surface connects bayonet socket device are fixed by shake table bayonet apparatus
Bolted splice is connected, and shake table sliding block and shake table slide rail are slidably connected, and make actuator system, vibration table surface system and fixation
System forms independent single dof mobility system, and flexible by shake table actuator expansion link makes vibration table surface system edge
Shake table slide rail is slided.
2. device according to claim 1, it is characterised in that the first shake table slide rail and the second shake table slide rail number
Amount is two, and specification is just the same, is respectively welded on base, table top in the first vibration table surface system or the second vibration
The shake table sliding block quantity of system is respectively 6, and specification is just the same, respectively according to the first shake table slide rail and the second shake table
The position uniform welding of slide rail is below corresponding vibration table surface.
3. device according to claim 1, it is characterised in that vibration table surface system and actuator system are made by shake table
Dynamic device expansion link bayonet apparatus and vibration table surface connects bayonet socket device are articulated and connected by shake table bayonet apparatus fixing bolt
Rather than being fixedly secured, it is articulated and connected it is possible to prevente effectively from actuator expansion link and vibration of the whole system due to actuator system
Not parallel " stuck " for causing of platform slide rail, and smooth slip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030406.8A CN106768764A (en) | 2017-01-17 | 2017-01-17 | A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal vibration load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030406.8A CN106768764A (en) | 2017-01-17 | 2017-01-17 | A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal vibration load |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036913A (en) * | 2017-11-27 | 2018-05-15 | 同济大学 | A kind of Double earthquakes model test apparatus that can separately provide the vertical twisting vibration load of single-degree-of-freedom |
| CN108051166A (en) * | 2017-11-27 | 2018-05-18 | 同济大学 | A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal torsion oscillatory load |
| CN108269462A (en) * | 2018-01-23 | 2018-07-10 | 北京科技大学 | A kind of small-sized fabricated construction dynamics teaching experimental base |
| CN108318201A (en) * | 2018-01-11 | 2018-07-24 | 中国工程物理研究院总体工程研究所 | A kind of super gravity field medium-high frequency high-thrust single degree of freedom horizontal vibration platform |
| CN108931348A (en) * | 2018-09-29 | 2018-12-04 | 鲁东大学 | A kind of efficient bridge structure fatigue experimental device |
| CN109323835A (en) * | 2018-11-16 | 2019-02-12 | 大连民族大学 | Single-degree of freedom vibration platform experimental rig |
| CN109827732A (en) * | 2019-02-20 | 2019-05-31 | 苏州旭博检测服务有限公司 | A kind of Double earthquakes model test apparatus |
| CN110057524A (en) * | 2019-05-27 | 2019-07-26 | 中国工程物理研究院总体工程研究所 | Broadband dual stage based on slide unit simultaneously pushes away pilot system |
| CN111521363A (en) * | 2020-05-13 | 2020-08-11 | 苏州苏试试验集团股份有限公司 | Horizontal direction parallel excitation vibration test device |
| CN112129480A (en) * | 2020-09-21 | 2020-12-25 | 中铁第五勘察设计院集团有限公司 | Roadbed vibration simulation device and method |
| CN112700706A (en) * | 2021-03-25 | 2021-04-23 | 西南交通大学 | Test device for simulating fault dislocation and seismic coupling effect |
| CN114088322A (en) * | 2021-11-18 | 2022-02-25 | 天元建设集团有限公司 | Experimental platform for simulating seismic force response numerical value of bridge connecting assembly |
| CN114152456A (en) * | 2021-10-28 | 2022-03-08 | 同济大学 | Continuous rigid frame bridge foundation horizontal ectopic load model device and test method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051166A (en) * | 2017-11-27 | 2018-05-18 | 同济大学 | A kind of Double earthquakes model test apparatus that can separately provide single-degree-of-freedom horizontal torsion oscillatory load |
| CN108036913A (en) * | 2017-11-27 | 2018-05-15 | 同济大学 | A kind of Double earthquakes model test apparatus that can separately provide the vertical twisting vibration load of single-degree-of-freedom |
| CN108318201A (en) * | 2018-01-11 | 2018-07-24 | 中国工程物理研究院总体工程研究所 | A kind of super gravity field medium-high frequency high-thrust single degree of freedom horizontal vibration platform |
| CN108269462A (en) * | 2018-01-23 | 2018-07-10 | 北京科技大学 | A kind of small-sized fabricated construction dynamics teaching experimental base |
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| CN108931348A (en) * | 2018-09-29 | 2018-12-04 | 鲁东大学 | A kind of efficient bridge structure fatigue experimental device |
| CN108931348B (en) * | 2018-09-29 | 2021-02-26 | 鲁东大学 | Efficient bridge structures fatigue test device |
| CN109323835A (en) * | 2018-11-16 | 2019-02-12 | 大连民族大学 | Single-degree of freedom vibration platform experimental rig |
| CN109827732A (en) * | 2019-02-20 | 2019-05-31 | 苏州旭博检测服务有限公司 | A kind of Double earthquakes model test apparatus |
| CN110057524B (en) * | 2019-05-27 | 2023-11-03 | 中国工程物理研究院总体工程研究所 | Broadband double-bench parallel pushing test system based on sliding table |
| CN110057524A (en) * | 2019-05-27 | 2019-07-26 | 中国工程物理研究院总体工程研究所 | Broadband dual stage based on slide unit simultaneously pushes away pilot system |
| CN111521363A (en) * | 2020-05-13 | 2020-08-11 | 苏州苏试试验集团股份有限公司 | Horizontal direction parallel excitation vibration test device |
| CN112129480A (en) * | 2020-09-21 | 2020-12-25 | 中铁第五勘察设计院集团有限公司 | Roadbed vibration simulation device and method |
| CN112700706A (en) * | 2021-03-25 | 2021-04-23 | 西南交通大学 | Test device for simulating fault dislocation and seismic coupling effect |
| CN114152456A (en) * | 2021-10-28 | 2022-03-08 | 同济大学 | Continuous rigid frame bridge foundation horizontal ectopic load model device and test method |
| CN114088322A (en) * | 2021-11-18 | 2022-02-25 | 天元建设集团有限公司 | Experimental platform for simulating seismic force response numerical value of bridge connecting assembly |
| CN114088322B (en) * | 2021-11-18 | 2023-04-28 | 天元建设集团有限公司 | Experimental platform for seismic force response numerical simulation of bridge connecting assembly |
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