CN108896393A - The assembly type bias loading device and working method of eccentricity can arbitrarily be adjusted - Google Patents
The assembly type bias loading device and working method of eccentricity can arbitrarily be adjusted Download PDFInfo
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- CN108896393A CN108896393A CN201810751783.5A CN201810751783A CN108896393A CN 108896393 A CN108896393 A CN 108896393A CN 201810751783 A CN201810751783 A CN 201810751783A CN 108896393 A CN108896393 A CN 108896393A
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
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Abstract
The present invention relates to one kind can arbitrarily adjust the assembly type bias loading device and working method of eccentricity, wherein the assembly type bias loading device of eccentricity can be adjusted arbitrarily, it is characterised in that：Including load end plate and edge of a knife hinge, elongated cutter groove is offered in the middle part of the load end plate for placing edge of a knife hinge, the multiple rows of oblong screw hole passed through with sharp bolt is being offered perpendicular to cutter groove direction, end plate will be loaded by bolt on multiple rows of oblong screw hole connect with test model upper end, by position of the adjusting bolt in oblong screw hole for realizing random eccentric away from bias load.The configuration of the present invention is simple, it is easy to operate, suitability it is strong, it can be achieved that random eccentric away from bias load, and loading unit plate can be assembled according to the big freedom in minor affairs of test model, loading unit plate is reusable, economical and efficient, is suitable for promoting.
Description
Technical field：
The present invention relates to assembly type bias loading devices and working method that one kind can arbitrarily adjust eccentricity, belong to engineering structure
Test technology investigation field.
Background technique：
Structure static test is structural clays most basic in engineering structure test, is mainly used for model configuration and bears quiet lotus
Working condition under load effect.It can be observed by slow test strong under dead weight with research engineering structure or component
Degree, rigidity and stress, deformation distribution situation, are the important means for verifying structural strength and static analysis correctness.Along with
China's rapid development of economy, the very fast progress of science and technology, various new materials, new construction, new process continue to bring out, Structural Static
Carrying test is the important means that research and development calculates analysis and design theory, and solves the scientific research of engineering structure field and design
In indispensable means when a new problem arose, engineering structure scientific research and in terms of play an important role.
Pier stud is building construction, all kinds of bridges as the main supporting member for being used to carry superstructure in engineering structure
The important component of the engineerings such as beam, Compressive Performance are directly related to the bearing capacity of structure and using safe, and pier stud
Pressurized tests are to study the main method of pier stud intensity and service performance.However, currently used pier stud pressurized tests device exists
There is test model size adaptability in use process, and single, eccentricity loads the problems such as series is limited：
On the one hand, it in order to guarantee the uniform stressed of pier stud test model in loading procedure, local failure not occur, generally requires just
It spends load plate larger, that size is roomy to be connected with test model, and one piece of complete load plate is commonly used in testing at present,
And the screw hole spacing in load plate is fixed, not only due to the heaviness of load plate itself causes inconvenient for use, and is often only applicable in
In a kind of test model of size, the model test of other sizes can not be suitable for, cause load plate that can not reuse, utilized
Rate is low；
On the other hand, several to meet if usually opening up arterial highway cutter groove in load plate when carrying out bias load test
The loading condition demand of kind eccentricity.It is different to carry out since cutter groove size needs to adapt to the placement and load of knife hinge
Bias load under eccentricity, or the quantity for opening up cutter groove is become more, but the overall stiffness of load plate can be declined, shadow
It rings bias test and loads effect, or several pieces of the processing load plates using different eccentricity cutter grooves, in turn result in load plate
Utilization rate it is low, experimentation cost is higher.
Therefore, to improve the test efficiency of research pier stud Compressive Performance, reducing experimentation cost, seek one kind not by reduced scale mould
Molded dimension and eccentricity limitation, assembly type bias loading device that is reusable, can arbitrarily adjusting eccentricity and its work side
Method is very necessary.
Summary of the invention：
The purpose of the present invention is place against the above deficiency, provides a kind of assembly type bias load that can arbitrarily adjust eccentricity
Device and working method.
The solution adopted by the present invention to solve the technical problem is that：
The present invention can arbitrarily adjust the assembly type bias loading device of eccentricity, it is characterised in that：Including load end plate and the edge of a knife
Hinge offers elongated cutter groove in the middle part of the load end plate and cuts with scissors for placing the edge of a knife, perpendicular to cutter groove direction offer with
Multiple rows of oblong screw hole that sharp bolt passes through will load end plate and test model upper end by bolt on multiple rows of oblong screw hole
Connection, by adjust position of the bolt in oblong screw hole for realizing random eccentric away from bias load.
Further, above-mentioned load end plate is formed by the adjacent assembly of the identical loading unit plate of size, the loading unit
The both sides of plate are respectively provided with there are two joint lug plate, and the joint lug plate of adjacent load cell board is mutually close to the joint lug plate
On offer the screw hole passed through with sharp bolt, convenient for the joint lug plate of adjacent load cell board being connected and assembling shape by bolt
End plate is suitably loaded at size.
It further, further include that can apply stressed pressure charging apparatus, the pressure charging apparatus includes for installing
Test model mounting platform is used to install the lower platen that the edge of a knife is cut with scissors with test model mounting platform top is located at.
Further, above-mentioned lower platen is bolted down by hydraulic cylinder or pneumatic cylinder driving lifting, the edge of a knife hinge
Pressing plate.
Further, the above-mentioned edge of a knife cuts with scissors the push type broach matched with cutter groove for including link block and being located at link block lower surface,
Lower platen is bolted in the link block.
Further, the upper end of above-mentioned test model has plate, has bolt hole on the plate, is used for and installation
It is connected in oblong screw hole inner bolt.
The present invention can arbitrarily adjust the working method of the assembly type bias loading device of eccentricity, include the following steps：
（1）Assembling load end plate：According to the size of test model, the loading unit plate of quantity abundance, adjacent load unit are selected
Plate close to joint lug plate by being bolted, assembling forms size and suitably loads end plate；
（2）Test model is installed：After end plate assembling to be loaded, end plate will be loaded by bolt and be connected with test model,
And test model is mounted on the test model mounting platform of loading equipemtn；
（3）Adjust eccentricity：Model to be tested after the installation is completed, adjusts position of the bolt on load end plate in oblong screw hole
It sets, after reaching the scheduled eccentricity of bias test, bolt is tightened into fixation；
（4）Edge of a knife hinge is installed：After being adjusted to eccentricity, edge of a knife hinge is placed in the cutter groove of load end plate, edge of a knife hinge is remote
It is connected by bolt with the lower platen of loading equipemtn from edge of a knife one end, and then is applied on test model by edge of a knife hinge and pressed
Power.
Compared with prior art, the invention has the advantages that：Structure is simple, easy to operate, and suitability is strong, test
It is preceding to assemble loading unit plate according to the big freedom in minor affairs of test model, when test can realize random eccentric away from bias load, and
Loading unit plate is reusable, economical and efficient, is suitable for promoting.
Detailed description of the invention：
The invention patent is further illustrated with reference to the accompanying drawing.
Fig. 1 is that the bias test in the embodiment of the present invention loads elevational schematic view；
Fig. 2 is the loading unit plate main view in the embodiment of the present invention；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 2 top view；
Fig. 5 is the loading unit plate assembling schematic diagram in the embodiment of the present invention；
In figure：
1- edge of a knife hinge, 2- load end plate, and 3- joint lug plate, 4- otic placode screw hole, 5- load end plate is connect with test specimen uses bolt, 6- examination
Test model, 7- test model mounting platform, 8- loading unit plate；Spiral shell is used in 9- cutter groove, 10- oblong screw hole, the connection of 11- otic placode
Bolt, 12- pressure charging apparatus, 13- lower platen, 14- plate, 101- link block, 102- push type broach, A- test model center line, B-
Load center line.
Specific embodiment：
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1 ~ Fig. 5, the assembly type bias loading device that the present invention can arbitrarily adjust eccentricity includes that the edge of a knife cuts with scissors 1 He
Load end plate 2；The middle part of the load end plate 2 offers elongated cutter groove 9 for placing edge of a knife hinge 1, perpendicular to cutter groove side
To the multiple rows of oblong screw hole 10 passed through with sharp bolt is offered, end plate will be loaded by bolt on multiple rows of oblong screw hole 10
Connect with 6 upper end of test model, by adjust position of the bolt in oblong screw hole for realizing random eccentric away from bias
Load.
In the present embodiment, the load end plate 2 is formed by the adjacent assembly of the identical loading unit plate 8 of size, described to add
The two sides of carrier unit plate 8 are provided with joint lug plate 3, and the joint lug plate 3 of adjacent load cell board is mutually close to the joint lug plate
The screw hole 4 passed through with sharp bolt 11 is offered on 3, convenient for connecting the joint lug plate of adjacent load cell board simultaneously by bolt 11
Assembling forms size and suitably loads end plate 2.
It in the present embodiment, further include that can apply stressed loading equipemtn 12, the pressure charging apparatus 12 includes being used for
Installation test model mounting platform 7 is used to install the lower platen 13 that the edge of a knife is cut with scissors with test model mounting platform top is located at, and pushes
Lower platen 13 can be bolted by hydraulic cylinder or pneumatic cylinder driving lifting, the edge of a knife hinge 2 in plate.Wherein edge of a knife hinge includes
Link block 101 and the push type broach 102 matched with cutter groove for being located at link block lower surface, the link block 101 are bolted
Lower platen 13.
In order to which function and effect are good, active force is stablized, and the upper end of the test model has plate 14, has on the plate
Have bolt hole, for be mounted on oblong screw hole inner bolt and connect, which can make to load the effect of end plate 2 to test model
Power is more uniform, and stability is high.
The present invention can arbitrarily adjust the working method of the assembly type bias loading device of eccentricity, include the following steps：
（1）Assembling load end plate 2：According to the size of test model 6, the loading unit plate 8 of quantity abundance is selected, by adjacent
The bolt 11 of joint lug plate 3 connects on loading unit plate 8, and assembling forms size and suitably loads end plate 2；
（2）Test model 6 is installed：After end plate 2 to be loaded assembles, test model is fixed on for end plate 2 is loaded by bolt 5
6, and test model 6 is mounted on the platform 7 of loading equipemtn；
（3）Adjust eccentric distance e：After the installation is completed, adjusting bolt 5 is on load end plate in oblong screw hole 10 for model 6 to be tested
Position, to reach the scheduled eccentric distance e of bias test；
（4）Edge of a knife hinge 1 is installed：After being adjusted to eccentric distance e, edge of a knife hinge 1 is placed in the cutter groove 9 of load end plate 2, the edge of a knife
Hinge 1 is connected by bolt with loading equipemtn 12 far from edge of a knife one end, and then is applied on test model 6 by edge of a knife hinge 1 and pressed
Power.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. the assembly type bias loading device that one kind can arbitrarily adjust eccentricity, it is characterised in that：Including load end plate and the edge of a knife
Hinge offers elongated cutter groove in the middle part of the load end plate and cuts with scissors for placing the edge of a knife, perpendicular to cutter groove direction offer with
Multiple rows of oblong screw hole that sharp bolt passes through will load end plate and test model upper end by bolt on multiple rows of oblong screw hole
Connection, by adjust position of the bolt in oblong screw hole for realizing random eccentric away from bias load.
2. the assembly type bias loading device according to claim 1 that can arbitrarily adjust eccentricity, it is characterised in that：It is described
Load end plate is formed by the adjacent assembly of the identical loading unit plate of size, there are two the both sides of the loading unit plate are respectively provided with
Joint lug plate, the joint lug plate of adjacent load cell board on the joint lug plate mutually close to offering and passed through with sharp bolt
Screw hole to form size and suitably load end plate convenient for connecting and assembling by the joint lug plate of adjacent load cell board by bolt.
3. the assembly type bias loading device according to claim 1 or 2 that can arbitrarily adjust eccentricity, it is characterised in that：
Further include that can apply stressed pressure charging apparatus, the pressure charging apparatus include for install test model mounting platform and
It is located above test model mounting platform for installing the lower platen of edge of a knife hinge.
4. the assembly type bias loading device according to claim 3 that can arbitrarily adjust eccentricity, it is characterised in that：It is described
Lower platen is bolted by hydraulic cylinder or pneumatic cylinder driving lifting, the edge of a knife hinge in lower platen.
5. the assembly type bias loading device according to claim 4 that can arbitrarily adjust eccentricity, it is characterised in that：It is described
The edge of a knife cuts with scissors the push type broach matched with cutter groove for including link block and being located at link block lower surface, and the link block is bolted
Lower platen.
6. the assembly type bias loading device according to claim 1 that can arbitrarily adjust eccentricity, it is characterised in that：It is described
The upper end of test model has plate, has bolt hole on the plate, for be mounted on oblong screw hole inner bolt and connect
It connects.
7. one kind can arbitrarily adjust the working method of the assembly type bias loading device of eccentricity, using such as claim 1 ~ 6 institute
The assembly type bias loading device that can arbitrarily adjust eccentricity stated, which is characterized in that include the following steps：
（1）Assembling load end plate：According to the size of test model, the loading unit plate of quantity abundance, adjacent load unit are selected
Plate close to joint lug plate by being bolted, assembling forms size and suitably loads end plate；
（2）Test model is installed：After end plate assembling to be loaded, end plate will be loaded by bolt and be connected with test model,
And test model is mounted on the test model mounting platform of loading equipemtn；
（3）Adjust eccentricity：Model to be tested after the installation is completed, adjusts position of the bolt on load end plate in oblong screw hole
It sets, after reaching the scheduled eccentricity of bias test, bolt is tightened into fixation；
（4）Edge of a knife hinge is installed：After being adjusted to eccentricity, edge of a knife hinge is placed in the cutter groove of load end plate, edge of a knife hinge is remote
It is connected by bolt with the lower platen of loading equipemtn from edge of a knife one end, and then is applied on test model by edge of a knife hinge and pressed
Power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751783.5A CN108896393A (en) | 2018-07-10 | 2018-07-10 | The assembly type bias loading device and working method of eccentricity can arbitrarily be adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751783.5A CN108896393A (en) | 2018-07-10 | 2018-07-10 | The assembly type bias loading device and working method of eccentricity can arbitrarily be adjusted |
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| Publication Number | Publication Date |
|---|---|
| CN108896393A true CN108896393A (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810751783.5A Pending CN108896393A (en) | 2018-07-10 | 2018-07-10 | The assembly type bias loading device and working method of eccentricity can arbitrarily be adjusted |
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| CN (1) | CN108896393A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068501A (en) * | 2019-05-27 | 2019-07-30 | 西南科技大学 | Eccentric loading device |
| CN112067454A (en) * | 2019-06-10 | 2020-12-11 | 中国航发商用航空发动机有限责任公司 | Extensometer anti-slip device in high-temperature extensometer and high-temperature quasi-static loading test |
| CN116840059A (en) * | 2023-06-30 | 2023-10-03 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
| CN117288578A (en) * | 2023-09-21 | 2023-12-26 | 四川路桥建设集团股份有限公司 | Eccentric compression component loading device with fine adjustment of eccentricity |
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| CN103217514A (en) * | 2013-03-21 | 2013-07-24 | 河海大学 | Eccentricity vertical loading device acting on column |
| CN103454400A (en) * | 2013-07-11 | 2013-12-18 | 北京工业大学 | Model box applied to large stereoscopic synthesis simulation test bench in geotechnical engineering |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068501A (en) * | 2019-05-27 | 2019-07-30 | 西南科技大学 | Eccentric loading device |
| CN112067454A (en) * | 2019-06-10 | 2020-12-11 | 中国航发商用航空发动机有限责任公司 | Extensometer anti-slip device in high-temperature extensometer and high-temperature quasi-static loading test |
| CN112067454B (en) * | 2019-06-10 | 2023-07-25 | 中国航发商用航空发动机有限责任公司 | Extensometer anti-slip device in high-temperature extensometer Gao Wenzhun static loading test |
| CN116840059A (en) * | 2023-06-30 | 2023-10-03 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
| CN116840059B (en) * | 2023-06-30 | 2023-12-12 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
| CN117288578A (en) * | 2023-09-21 | 2023-12-26 | 四川路桥建设集团股份有限公司 | Eccentric compression component loading device with fine adjustment of eccentricity |
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