CN109060511A - A kind of multifunction structure engineering load test system - Google Patents
A kind of multifunction structure engineering load test system Download PDFInfo
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- CN109060511A CN109060511A CN201810996507.5A CN201810996507A CN109060511A CN 109060511 A CN109060511 A CN 109060511A CN 201810996507 A CN201810996507 A CN 201810996507A CN 109060511 A CN109060511 A CN 109060511A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention proposes a kind of multifunction structure engineering load test systems, including reaction frame, horizontal actuator unit, loading beam, vertical actuator unit, first connecting portion, second connecting portion.Horizontal actuator unit one end is hinged with reaction frame, and the other end is hinged with loading beam；First connecting portion is installed, one end of vertical actuator unit connects second connecting portion, and second connecting portion is connect with first connecting portion, so that vertical actuator unit follows load(ing) point to do horizontal, vertical both direction matched curve campaign on loading beam.The other end of vertical actuator unit is connect with reaction frame；Space between loading beam and reaction frame is for placing test specimen.The present invention does not need special hunting gear, can realize well and vertical actuator load(ing) point be followed to do horizontal, vertical both direction matched curve track is servo-actuated, is conveniently used for structural member and a variety of compound type load tests such as is pressed, is curved, cut.
Description
Technical field
The invention belongs to technical field of civil engineering, are related to a kind of load test system, especially Structural Engineering load examination
Check system.
Background technique
Structural test is that the facilities such as building generate surprisingly when external force occurs in order to prevent, is caused casualties,
Numerous studies have been done to structural behaviour for this, and have carried out a large number of experiments verifying design theory, structural test is mainly with structure or structure
Part loads test specimen using load or shift value as control amount, is unloaded.
Currently, the earthquake-resistant structure that uses both at home and abroad, which tests vertical loading form, to be had: passive sliding, active tracing formula, on
Hold formula, pull-down, modularization rod-pulling type etc..These loading devices can be loaded with horizontal addload system common implementing and be controlled, also
It can individually load.
Passive sliding, active tracing formula, deck type, the vertical loading system of pull-down these types there are the problem of it is main
Have: (1) test piece deformation after loading was tested so that the cross component or lateral resistance that generate outside loaded planar are in upset condition
In order to guarantee axial load in plane in journey, while overcoming planar outboard to resistance, the output for constantly correcting actuator is needed to carry
Lotus largely increases test difficulty；(2) since the plane external applied load that test piece deformation generates cannot directly be surveyed by sensor
, the reliability of test result is reduced to a certain extent；(3) it in order to guarantee flat uniaxially load, needs to increase limiting device,
Structure is relative complex, and installation accuracy requires high；(4) loading device is connected with counter-force pedestal, to pedestal there may be tension or by
The flush shear force of pressure, all loads all pass through loading device and pass on counter-force pedestal, require pedestal bearing capacity high.On in addition,
Holding main problem existing for formula loading system further include: (1) coefficient of friction sliding support and test specimen between be in upset condition, because
Overall process is needed to demarcate during this test, if it is High speed load, difficulty can be higher；(2) as needed mistake entirely during test
Journey calibration, also has high requirements to acquisition system.
In modularization rod-pulling type loading system, horizontal actuator one end is connected on rigid structure/counter force wall, and one end passes through
Pull rod is connected in structural test piece, and vertical load is applied using hydraulic servo actuator, is fixed on test specimen two ends by tensioning
High-strength flexible rod piece is transferred to test specimen, and test specimen two ends can arrange more high-strength flexible rod pieces.The advantages of this loading system, has:
(1) test specimen can be guaranteed always by axial load；(2) installation of test test specimen is simple and convenient, highly-safe；(3) it can install
One group is arrived multiple groups vertical loading device, and modular operation is widely applicable；(4) device is constituted simple, and fitting limit is wide.Modularization
The shortcomings that rod-pulling type loading system is that pull rod can only bear pulling force, cannot bear pressure, can not carry out small axial compression ratio load test,
Also the more complicated composite testing such as Subjected To Compression, Bending, Shear can not be done.In addition, test piece base usually requires to do bigger, experiment input cost ratio
It is larger.
Summary of the invention
The purpose of the present invention is to provide a kind of multifunction structure engineering load test systems, not need hunting gear
In the case where, it realizes that vertical actuator follows load(ing) point to do horizontal, vertical both direction matched curve track and is servo-actuated, is conveniently used for
Structural member such as is pressed, is curved, being cut at a variety of compound type load tests.
In order to achieve the above object, solution of the invention is:
A kind of multifunction structure engineering load test system, including it is reaction frame, horizontal actuator unit, loading beam, perpendicular
To actuator unit, first connecting portion, second connecting portion；Described horizontal actuator unit one end and the reaction frame are hinged,
The other end and the loading beam are hinged；First connecting portion is installed, one end of the vertical actuator unit connects on the loading beam
Second connecting portion is connect, second connecting portion is connect with first connecting portion, so that the vertical actuator unit follows load(ing) point to do
Horizontal, vertical both direction matched curve campaign；The other end of the vertical actuator unit is connect with the reaction frame；Institute
The space between loading beam and the reaction frame is stated for placing test specimen.
First connecting portion includes horizontal axis and oscillating bearing；The oscillating bearing is embedded in the loading beam, described
Horizontal axis is connect by the oscillating bearing with the loading beam；Second connecting portion is screw rod；The screw rod passes through the water
The upper and lower end faces of flat axis, and locked by locking nut；Preferably, the both ends of the horizontal axis are respectively installed described in one
Oscillating bearing.
One end of the horizontal actuator unit is connect by flexural pivot with the reaction frame, and the other end passes through flexural pivot and institute
State loading beam connection.
The upper end of the vertical actuator unit is tailpiece of the piston rod, is connect by flange with second connecting portion.
The lower end of the vertical actuator unit is connect by flexural pivot with the reaction frame.
The reaction frame includes horizontal counter-force platform and vertical counter force wall；Preferably, the counter force wall with it is described
One end of horizontal actuator unit connects, and the counter-force platform is connect with the other end of the vertical actuator unit.
The horizontal actuator unit includes at least one horizontal actuator.
The vertical actuator unit includes at least one vertical actuator；Preferably, the vertical actuator unit packet
Include two vertical actuator.
By adopting the above scheme, the beneficial effects of the present invention are: multifunction structure engineering load test system of the present invention
Structure is simple, and cost is relatively low；The oscillating bearing of the vertical horizontal axis in actuator upper end and loading beam connects, while vertical actuator
Lower end is hinged with reaction frame, so that loading beam remains horizontal addload posture, does not need special hunting gear, no friction
Power influences, and can realize that vertical actuator follows load(ing) point to do horizontal, vertical both direction matched curve track and is servo-actuated well, protect
Demonstrate,prove the accuracy and real-time of load；Since the screw rod of vertical actuator upper end passes through horizontal axis, and upper-lower section is using lock
Tight nut is fixed, and structure is simple, is facilitated and is adjusted loading beam and reaction frame vertical distance, meets different tests requirement for height, side
Just a variety of compound type load tests such as pressed, be curved, being cut for structural member；It, can be preferably by multiple actuator coordinations
Power and displacement boundary conditions needed for simulation test are able to satisfy more complicated load test requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multifunction structure engineering load test system in one embodiment of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
A kind of multifunction structure engineering load test system, Fig. 1 show its structural schematic diagram.The multifunction structure engineering
Load test system include reaction frame 1, horizontal actuator unit, loading beam 3, vertical actuator unit, first connecting portion 5,
Second connecting portion.Horizontal actuator unit includes at least one horizontal actuator, and in the present embodiment, horizontal actuator unit includes
One horizontal actuator 2.Vertical actuator unit includes at least one vertical actuator；In the present embodiment, vertical actuator list
Member include two vertical actuator, respectively 401 and 402, thus in the present embodiment vertical actuator unit be by two vertically
The vertical actuator array of actuator composition.
Horizontal actuator unit one end (rear end) and reaction frame 1 are hinged, and the other end (front end) and loading beam 3 are hinged.This
In embodiment, one end of horizontal actuator 2 is connect by flexural pivot with reaction frame 1, and the other end is connected by flexural pivot and loading beam 3
It connects.In the present embodiment, reaction frame 1 includes horizontal counter-force platform 101 and vertical counter force wall 102.
First connecting portion 5 is installed on loading beam 3, one end (upper end) of vertical actuator unit connects second connecting portion, the
Two interconnecting pieces are connect with first connecting portion 5, to allow to adjust the height of loading beam 3, and allow loading beam 3 in reaction frame 1
The planar relative rotation with vertical actuator unit so as to follow load(ing) point to do horizontal, vertical for vertical actuator unit
Both direction matched curve campaign.
The other end (lower end) of vertical actuator unit is connect with reaction frame 1；In the present embodiment, vertical actuator unit
Lower end connect with counter-force platform 101 by flexural pivot.To which counter force wall 102 is connect with one end of horizontal actuator 2, and counter-force is flat
Platform 101 is connect with the lower end of vertical actuator unit.
Space between loading beam 3 and counter-force platform 101 is for placing test specimen 8.
First connecting portion 5 includes horizontal axis and oscillating bearing.Oscillating bearing is embedded in loading beam 3, and horizontal axis is logical
It crosses oscillating bearing to connect with loading beam 3, facilitates the pose adjustment of loading beam 3 in loading procedure.Second connecting portion is screw rod 6；Spiral shell
Bar 6 passes through the upper and lower end faces of horizontal axis, and is locked by locking nut (upper and lower two locking nuts 701 and 702)；This reality
It applies in example, an oscillating bearing is respectively installed at the both ends of horizontal axis.
The upper end of vertical actuator unit is tailpiece of the piston rod (the cylinder rod end of i.e. corresponding actuator), passes through flange and screw rod
6 connections.
, can be according to different 8 height of test specimen when test, loading beam 3 can be adjusted along about 6 screw rod, after determining position,
Horizontal axis upper and lower position, the i.e. height and position of loading beam 3 are locked by locking nut 701,702.
In the present embodiment, vertical actuator array and horizontal actuator coordination provide the load of test requirements document jointly,
Wherein vertical load is that these actuator are further applied load the vector sum on vertical, and horizontal loading is that these actuator are further applied load
Vector sum in horizontal direction.Each actuator during loading, is kept by controlling overhang and the payload values of piston rod
The posture of loading beam.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (8)
1. a kind of multifunction structure engineering load test system, it is characterised in that: including reaction frame, horizontal actuator unit,
Loading beam, vertical actuator unit, first connecting portion, second connecting portion；
Described horizontal actuator unit one end and the reaction frame are hinged, and the other end and the loading beam are hinged；
First connecting portion is installed, one end of the vertical actuator unit connects second connecting portion, and second connects on the loading beam
Socket part is connect with first connecting portion, is intended so that the vertical actuator unit follows load(ing) point to do horizontal, vertical both direction
Close curvilinear motion；
The other end of the vertical actuator unit is connect with the reaction frame；
Space between the loading beam and the reaction frame is for placing test specimen.
2. multifunction structure engineering load test system according to claim 1, it is characterised in that: first connecting portion includes
Horizontal axis and oscillating bearing；The oscillating bearing is embedded in the loading beam, and the horizontal axis passes through the joint shaft
It holds and is connect with the loading beam；
Second connecting portion is screw rod；The screw rod passes through the upper and lower end faces of the horizontal axis, and is locked by locking nut；
Preferably, the oscillating bearing is respectively installed at the both ends of the horizontal axis.
3. multifunction structure engineering load test system according to claim 1, it is characterised in that: the horizontal actuator
One end of unit is connect by flexural pivot with the reaction frame, and the other end is connect by flexural pivot with the loading beam.
4. multifunction structure engineering load test system according to claim 1, it is characterised in that: the vertical actuator
The upper end of unit is tailpiece of the piston rod, is connect by flange with second connecting portion.
5. multifunction structure engineering load test system according to claim 1, it is characterised in that: the vertical actuator
The lower end of unit is connect by flexural pivot with the reaction frame.
6. multifunction structure engineering load test system according to claim 1, it is characterised in that: the reaction frame packet
Include horizontal counter-force platform and vertical counter force wall；
Preferably, the counter force wall is connect with one end of the horizontal actuator unit, the counter-force platform and the vertical work
The other end connection of dynamic device unit.
7. multifunction structure engineering load test system according to claim 1, it is characterised in that: the horizontal actuator
Unit includes at least one horizontal actuator.
8. multifunction structure engineering load test system according to claim 1, it is characterised in that: the vertical actuator
Unit includes at least one vertical actuator；
Preferably, the vertical actuator unit includes two vertical actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996507.5A CN109060511A (en) | 2018-08-29 | 2018-08-29 | A kind of multifunction structure engineering load test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996507.5A CN109060511A (en) | 2018-08-29 | 2018-08-29 | A kind of multifunction structure engineering load test system |
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| Publication Number | Publication Date |
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| CN109060511A true CN109060511A (en) | 2018-12-21 |
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| CN201810996507.5A Pending CN109060511A (en) | 2018-08-29 | 2018-08-29 | A kind of multifunction structure engineering load test system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765020A (en) * | 2019-03-21 | 2019-05-17 | 哈尔滨工业大学 | Loading system and its loading control method |
| CN110657932A (en) * | 2019-08-22 | 2020-01-07 | 广西大学 | Loading device for anti-seismic performance test of vertical component with combined pulling and shearing effects |
| CN111103108A (en) * | 2020-01-10 | 2020-05-05 | 济南三越测试仪器有限公司 | Pseudo-static multifunctional test system |
| CN111272582A (en) * | 2019-12-09 | 2020-06-12 | 中国建筑股份有限公司 | System and method for testing structure one-way compression shear static force |
| CN111929013A (en) * | 2020-08-06 | 2020-11-13 | 太原理工大学 | Bending boundary condition experiment system under lateral impact effect |
| CN112051133A (en) * | 2020-09-03 | 2020-12-08 | 华北科技学院 | Loading system for mechanical simulation test |
-
2018
- 2018-08-29 CN CN201810996507.5A patent/CN109060511A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765020A (en) * | 2019-03-21 | 2019-05-17 | 哈尔滨工业大学 | Loading system and its loading control method |
| CN110657932A (en) * | 2019-08-22 | 2020-01-07 | 广西大学 | Loading device for anti-seismic performance test of vertical component with combined pulling and shearing effects |
| CN111272582A (en) * | 2019-12-09 | 2020-06-12 | 中国建筑股份有限公司 | System and method for testing structure one-way compression shear static force |
| CN111103108A (en) * | 2020-01-10 | 2020-05-05 | 济南三越测试仪器有限公司 | Pseudo-static multifunctional test system |
| CN111103108B (en) * | 2020-01-10 | 2021-12-31 | 济南三越测试仪器有限公司 | Pseudo-static multifunctional test system |
| CN111929013A (en) * | 2020-08-06 | 2020-11-13 | 太原理工大学 | Bending boundary condition experiment system under lateral impact effect |
| CN111929013B (en) * | 2020-08-06 | 2022-08-05 | 太原理工大学 | Bending boundary condition experiment system under lateral impact effect |
| CN112051133A (en) * | 2020-09-03 | 2020-12-08 | 华北科技学院 | Loading system for mechanical simulation test |
| CN112051133B (en) * | 2020-09-03 | 2024-04-05 | 华北科技学院 | Loading system for mechanical simulation test |
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