CN205246459U - Electricity liquid servo control civil engineering array loading structural test system - Google Patents
Electricity liquid servo control civil engineering array loading structural test system Download PDFInfo
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- CN205246459U CN205246459U CN201520880972.4U CN201520880972U CN205246459U CN 205246459 U CN205246459 U CN 205246459U CN 201520880972 U CN201520880972 U CN 201520880972U CN 205246459 U CN205246459 U CN 205246459U
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Abstract
The utility model provides an electricity liquid servo control civil engineering array loading structural test system, is including experimental frame, loading beam, vertical force actuator and horizontal loading actuator, the one end of horizontal loading actuator is articulated with the side of loading beam, the other end of horizontal loading actuator is articulated with experimental frame, the lower extreme of vertical force actuator with the upper end of loading beam is articulated, experimental station for being used for placing the test piece between the lower part of loading beam and the experimental frame, testing system still includes slider, the upper end of vertical force actuator with slider connects, but install slider horizontal slip on the experimental frame. The utility model provides an effectively promote the electricity liquid servo control civil engineering array loading structural test system of loading precision.
Description
Technical field
The utility model relates to test apparatus equipment, especially relates to civil engineering structure test instrumentDevice, specifically refers to a kind of array loading structure pilot system.
Background technology
In the plan static(al) of civil engineering structure test, pseudo, be mainly used for structural seismicThe research of aspect, therefore loading scheme is generally vertical constant force loading, and horizontal reciprocating loads.
Prior art has three kinds: the first is the structural test system with carriage; SecondPlanting is the structural test system with carriage and employing bar linkage structure. These two kinds of methods are suitable forIn different structural test requirements. First method is applicable to the curved scissors examination in structural seismic testTest, when loading, allow sample top to rotate. Second method is applicable to structural seismic testIn pressure scissor test, when loading, do not allow sample top to rotate, test principle is shown in " JGJ101-96 building aseismicity test method codes ". The third method adopts at least two two ends hingedActuator applies vertical load to test specimen, and simultaneously level loads actuator that sample is carried out to level is pastBe added with and carry, by the mode of resolving, sample is applied vertical force and the horizontal force of requirement.
In first method, vertical employing jack loads and carries out dead load control, because test specimen is at waterOccurred level shift reciprocately under the effect of flat actuator, the rear end of Plumb load jack is by rollingMoving guide rail moves along the direction of motion of horizontal actuator, thereby ensures that vertical force is vertical all the time. ButChange because test specimen horizontal distortion causes the vertical position of Plumb load point, thereby cause hanging downChange to load, and jack can not be realized quick response, make vertical load keep permanentFixed, therefore the vertical load in whole experimentation fluctuates larger. Different sample fluctuationsScope difference, generally all more than 10%, cannot meet the requirement of loading accuracy.
In second method, Plumb load precision is not high, and for test specimen top is not rotatedAnd having adopted a set of linkage, the problem that this mechanism exists is structure heaviness, specimen heightRange limited.
The third method is to add according to Plumb load actuator and level by computer control systemCarry displacement output and the original length of actuator, calculate the space of load plate in process of the testPosition, by controlling the output of different actuator, makes load plate keep level, therebyComplete to press and cut or curved scissors test. But there is following shortcoming:
(1), while causing vertical actuator deflection due to test specimen horizontal distortion, Plumb load power can be producedRaw horizontal component, on sample, the actual vertical force bearing is the vertical component of actuator load, itsHorizontal component need to calculate acquisition, therefore the alignment error of vertical actuator, gap and frameworkBe out of shape larger on the impact of result of the test.
(2) level loads in actuator actual loaded process, because the sample that vertical load causesDistortion can make level loading actuator that deflection to a certain degree also occurs, and when calculating, must considerThe vertical component that deflection causes and the impact of horizontal component.
Therefore, the method needs vertical and horizontal direction power are decomposed and resolved simultaneously.
Summary of the invention
In order to overcome the lower deficiency of loading accuracy of existing loading structure pilot system, this practicalityThe novel electro-hydraulic servo control civil engineering array that a kind of effective lifting loading accuracy is provided loadsStructural test system.
The utility model solves the technical scheme that its technical problem adopts:
A kind of electro-hydraulic servo control civil engineering array loading structure pilot system, comprises test frameFrame, loading beam, Vertical loading actuator and level load actuator, and described level loads startOne end of device and the side of loading beam are hinged, and described level loads the other end and the test of actuatorFramework is hinged, and the lower end of described Vertical loading actuator and the upper end of described loading beam are hinged, instituteStating the bottom of loading beam and testing between framework is for placing the test station of test specimen, described examinationCheck system also comprises carriage, the upper end of described Vertical loading actuator and described carriageConnect, described carriage can be arranged on described test framework horizontally slidingly.
Further, the upper end of described Vertical loading actuator is connected with carriage by rear flange.
Further again, described carriage is low frictional resistance sliding panel, and described low frictional resistance sliding panel canBe arranged on horizontally slidingly on the girder of loading frame.
The lower end of described Vertical loading actuator is connected with loading beam by front ball pivot.
Described level loads actuator and adopts front and back hinge joints structure, and rear ball pivot and loading frame connectConnect, front ball pivot is connected with loading beam.
Described test framework comprises ground, counter force wall and girder, described carriage and described masterBeam connects, and the other end that described level loads actuator is connected with counter force wall, described loading beamIt between bottom and ground, is test station.
Described Vertical loading actuator has at least two to form above Vertical loading actuator array,Described level loads actuator has at least two above formation levels to load actuator array.
The beneficial effects of the utility model are mainly manifested in: do by computer control system controlThereby moving device array is exported same displacement and is ensured that load plate can keep level, eliminates deflection,Thereby ensure that sample receives pure horizontal shear force, promoted loading accuracy; Also can controlMaking each array actuator, to be output as power be constant, and sample top is issued in the effect of horizontal forceRaw rotation, thus realize curved scissors test.
Brief description of the drawings
Fig. 1 is a kind of signal of electro-hydraulic servo control civil engineering array loading structure pilot systemFigure.
Fig. 2 is showing of another kind of electro-hydraulic servo control civil engineering array loading structure pilot systemIntention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
See figures.1.and.2, a kind of electro-hydraulic servo control civil engineering array loading structure testSystem, comprises that test framework, loading beam 10, Vertical loading actuator 2 and level load startDevice 4, described level loading one end of actuator 4 and the side of loading beam 10 are hinged, described waterThe other end of flat loading actuator 4 is hinged with test framework, described Vertical loading actuator 2The upper end of lower end and described loading beam 10 is hinged, the bottom of described loading beam 10 and test frameworkBetween for for placing the test station of test specimen 9, described pilot system also comprises carriage 1,The upper end of described Vertical loading actuator 2 is connected with described carriage 1, described carriage1 can be arranged on described test framework horizontally slidingly.
Further, the upper end of described Vertical loading actuator 2 connects by rear flange and carriageConnect.
Further again, described carriage is low frictional resistance sliding panel, and described low frictional resistance sliding panel canBe arranged on horizontally slidingly on loading frame.
The lower end of described Vertical loading actuator 2 is connected with loading beam 10 by front ball pivot 3.
Described level loads actuator 2 and adopts front and back hinge joints structure, rear ball pivot 5 and loading frameFrame connects, and front ball pivot 6 is connected with loading beam 10.
Described test framework comprises ground 8, counter force wall 7 and girder 11, described carriage 1Be connected with described girder 11, the other end that described level loads actuator 4 is connected with counter force wall 7,It between the bottom of described loading beam 10 and ground 8, is test station.
Described Vertical loading actuator 2 has at least two to form above Vertical loading actuator battle arrayRow, described level loads actuator 4 has at least two above formation levels to load actuator array.
The test method that the loading structure pilot system of the present embodiment realizes is as follows:
The first, be arranged on the Vertical loading actuator of carriage by array, provide test to wantThe sample load of asking, the closing of the Plumb load power that this load provides for all Plumb load actuatorPower;
The second, Vertical loading actuator is in loading procedure, and control piston bar displacement, ensuresThe level of loading beam;
The 3rd, level loads actuator enough horizontal loading force is provided, and makes loading beam waterFlat motion, the horizontal displacement that its displacement is test requirements document;
The 4th, in the time that level loads, measure loading beam horizontal movement to test requirements document position processIn actuator loading force data, and consider the frictional force factor of carriage motion, reviseTo the horizontal load data of sample.
Claims (7)
1. an electro-hydraulic servo control civil engineering array loading structure pilot system, comprise test framework, loading beam, Vertical loading actuator and level load actuator, described level loading one end of actuator and the side of loading beam are hinged, described level loads the other end of actuator and tests framework hinged, the lower end of described Vertical loading actuator and the upper end of described loading beam are hinged, between the bottom of described loading beam and test framework, be for placing the test station of test specimen, be characterised in that: described pilot system also comprises carriage, the upper end of described Vertical loading actuator is connected with described carriage, described carriage can be arranged on described test framework horizontally slidingly.
2. electro-hydraulic servo control civil engineering array loading structure pilot system as claimed in claim 1, is characterized in that: the upper end of described Vertical loading actuator is connected with carriage by rear flange.
3. electro-hydraulic servo control civil engineering array loading structure pilot system as claimed in claim 2, is characterized in that: described carriage is sliding panel, and described sliding panel can be arranged on the girder of loading frame horizontally slidingly.
4. the electro-hydraulic servo control civil engineering array loading structure pilot system as described in one of claim 1 ~ 3, is characterized in that: the lower end of described Vertical loading actuator is connected with loading beam by front ball pivot.
5. the electro-hydraulic servo control civil engineering array loading structure pilot system as described in one of claim 1 ~ 3, is characterized in that: described level loads actuator and adopts front and back hinge joints structure, and rear ball pivot is connected with loading frame, and front ball pivot is connected with loading beam.
6. the electro-hydraulic servo control civil engineering array loading structure pilot system as described in one of claim 1 ~ 3, it is characterized in that: described test framework comprises ground, counter force wall and girder, described carriage is connected with described girder, the other end that described level loads actuator is connected with counter force wall, is test station between the bottom of described loading beam and ground.
7. the electro-hydraulic servo control civil engineering array loading structure pilot system as described in one of claim 1 ~ 3, it is characterized in that: described Vertical loading actuator has at least two to form above Vertical loading actuator array, described level loads actuator has at least two above formation levels to load actuator array.
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| CN201520880972.4U CN205246459U (en) | 2015-11-05 | 2015-11-05 | Electricity liquid servo control civil engineering array loading structural test system |
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| CN201520880972.4U CN205246459U (en) | 2015-11-05 | 2015-11-05 | Electricity liquid servo control civil engineering array loading structural test system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197981A (en) * | 2016-08-12 | 2016-12-07 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of electromotor auxiliary installs joint finite element analysis charger and method |
| CN106768960A (en) * | 2016-12-29 | 2017-05-31 | 北京金风科创风电设备有限公司 | Load loading device and load loading method |
| CN106802224A (en) * | 2017-03-20 | 2017-06-06 | 杭州邦威机电控制工程有限公司 | A kind of modularization electro-hydraulic servo vertical load loading device |
| CN108193722A (en) * | 2018-03-09 | 2018-06-22 | 河南理工大学 | Strip footing model test apparatus by the side slope of integrated micro stake supporting |
| CN109406300A (en) * | 2018-12-17 | 2019-03-01 | 大连理工大学 | A kind of experimental rig of achievable small span-depth ratio coupling beam pure shear load |
| CN109696305A (en) * | 2019-01-29 | 2019-04-30 | 杭州邦威机电控制工程有限公司 | A kind of electro-hydraulic servo control mild steel damper energy consumption pilot system |
| CN112964463A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨工业大学 | Parallel four-bar test loading device matched with reaction frame |
-
2015
- 2015-11-05 CN CN201520880972.4U patent/CN205246459U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197981A (en) * | 2016-08-12 | 2016-12-07 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of electromotor auxiliary installs joint finite element analysis charger and method |
| CN106768960A (en) * | 2016-12-29 | 2017-05-31 | 北京金风科创风电设备有限公司 | Load loading device and load loading method |
| CN106802224A (en) * | 2017-03-20 | 2017-06-06 | 杭州邦威机电控制工程有限公司 | A kind of modularization electro-hydraulic servo vertical load loading device |
| CN108193722A (en) * | 2018-03-09 | 2018-06-22 | 河南理工大学 | Strip footing model test apparatus by the side slope of integrated micro stake supporting |
| CN108193722B (en) * | 2018-03-09 | 2023-09-29 | 河南理工大学 | Side slope side strip foundation model test device for integrated miniature pile support |
| CN109406300A (en) * | 2018-12-17 | 2019-03-01 | 大连理工大学 | A kind of experimental rig of achievable small span-depth ratio coupling beam pure shear load |
| CN109696305A (en) * | 2019-01-29 | 2019-04-30 | 杭州邦威机电控制工程有限公司 | A kind of electro-hydraulic servo control mild steel damper energy consumption pilot system |
| CN112964463A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨工业大学 | Parallel four-bar test loading device matched with reaction frame |
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