CN108844809A - A kind of concrete biaxial compression test specimen about beam processing apparatus - Google Patents
A kind of concrete biaxial compression test specimen about beam processing apparatus Download PDFInfo
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- CN108844809A CN108844809A CN201810705666.5A CN201810705666A CN108844809A CN 108844809 A CN108844809 A CN 108844809A CN 201810705666 A CN201810705666 A CN 201810705666A CN 108844809 A CN108844809 A CN 108844809A
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- 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
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Abstract
The invention discloses a kind of concrete biaxial compression test specimen about beam processing apparatus, including two first structure unit pieces, two the second structural unit pieces and a third structural unit piece, third structural unit piece is horizontally disposed, bottom structure as device, middle part is provided with the reserved test specimen position line, places concrete sample for positioning；First structure unit piece, the second structural unit piece bottom side portion be provided with the buckle connecting with for third structural unit piece；The two sides of first structure unit piece are removably connect with a side of two the second structural unit pieces respectively, are formed square border structure, are sticky gypsum casting space between concrete sample and first structure unit piece, the second structural unit piece.Adhere to a protective layer in concrete sample tension, compression face by the present apparatus, load plate can be effectively improved to the anti-attrition effect of contraction of concrete, improve the accuracy of experimental test.
Description
Technical field
The present invention relates to concrete test technical fields, and in particular to a kind of concrete biaxial compression test specimen constraint processing dress
It sets.
Background technique
It is well known that concrete be prepared by a certain percentage by cementitious material, fine aggregate, coarse aggregate, water and additive and
At composite material.Compared with other construction materials, concrete is convenient with materials, easily pour, fire resistance is good, anti-cyclic load
The advantages such as performance is good, economical and practical, maintenance requirement is low.Therefore, just favored extensively since its appearance, be widely used in
In the buildings and structures such as industry and civil buildings, bridge tunnel, concrete dam, coastal engineering and Nuclear containment.Make
With in the phase, concrete structure is other than bearing static load, it is also possible to by dynamic load, for example earthquake load, explosion lotus
Load, impact load, wave load and vehicular load etc..
Concrete is in practical applications often in complicated tension and compression stress state, the static test result of study table that oneself has
Bright, under tension and compression stress assembled state, resistance to compression direction stress and tension direction stress are respectively lower than uniaxial anti-when concrete destruction
Compressive Strength and uniaxial tensile strength, and resistance to compression direction stress reduces clearly with tensile stress.By tension and compression stress structure
It is unsafe using concrete in uniaxial tensile strength or uniaxial compressive strength as design considerations in design.In researcher to mixed
In the research achievement that solidifying soil dynamic characteristic carries out, the research achievement of dynamic uniaxial compressive and uniaxial tension characteristic is relatively more, tension and compression
The research achievement of concrete property under stress state is fewer.So concrete dynamic characteristic under tension and compression stress state
Research is of great significance.As theoretical deepens continuously, meeting affixing steel plate in concrete sample surface in biaxial tension test test, from
And steel plate can generate frictional constraint effect to concrete.In concrete biaxial tensile compression test research at home and abroad, there is scholar to exist
Prism test specimen tension face is connected with, but the bolt area reserved in test specimen stress easy to form is concentrated, and compression face places one layer
Plastic film, but the protecting effect of film is unsatisfactory, to influence experimental result.
Specimen Shape is reasonably selected, how in surface of test piece to plate layer protecting film, what is selected as protective film, to prevent
Only testing machine load steel plate then becomes the premise that test guarantees to the effect of contraction of concrete sample.In Southeast China University in 2015
Doctor Zhou Jiajia's《Mechanical property test and theoretical research under high-strength high-performance concrete multi-axis stress state》In, carry out
When biaxial tension test is tested, using the prism test specimen of 150mm ' 150mm ' 50mm, using construction structure glue by test specimen and load transfer plate
(aluminium block) is bonded, and maintenance obtains for 24 hours uses adhesion strength, and is loaded using the connection type of outer patch bloom, still
In the tension direction of test specimen, surface of test piece out-of-flatness, and compression face load plate can generate rubbing action to test specimen, will affect experiment
As a result.What Chen Renjin was delivered in 2015《Big aggregate concrete dynamic biaxial tension test performance test research》In, the test specimen of use
For 250mm ' 250mm ' 400mm prism, it is attached in test specimen tension face prepared screw-bolt hole with load plate, compression face paste one
Layer plastic film and glycerol carry out anti-attrition constraint processing, but tension face prepared screw-bolt hole, this region stress easy to form in test
It concentrates, influences test result, compression face paste thin film and glycerol, only serve lubricating action, load plate can't be reduced to examination
The effect of contraction of the Free Transform of part.
Summary of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of concrete biaxial compression test specimen about
Beam processing apparatus, the device is easy to operate, making expense, lower, moulded dimension can be adjusted design with sample dimensions, conveniently not
With the needs of test.By the way that in the prefabricated one layer of bonding gypsum protective layer of test specimen tension and compression face, bonding gypsum has condensation hard
Change that fast, surface is smooth, fine and smooth, accurate size, nontoxic, the features such as having no irritating odor.On axis hand-pulled noodles, tension face can with add
Support plate comes into full contact with, and prevents constraint of the load steel plate to concrete；On axis pressure surface, sticky gypsum forms a protective layer, and
Glycerol is smeared on the gypsum on axis pressure surface before experiment, load steel plate can be effectively improved in this way, the anti-attrition of concrete is constrained
Effect, while load plate is reduced to the effect of contraction of the Free Transform of test specimen, the accuracy of experimental test is improved, can satisfy existing
Technical conditions as defined in row geotechnique's laboratory test regulation.
Technical solution：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Including two first structure unit pieces, two
Second structural unit piece and a third structural unit piece,
The third structural unit piece is horizontally disposed, as the bottom structure of device, setting in the middle part of the third structural unit piece
There is the reserved test specimen position line, places concrete sample for positioning；
The first structure unit piece, the second structural unit piece bottom side portion be provided with and connect for third structural unit piece
Buckle；Two first structure unit pieces are opposite to be arranged in parallel, and two the second structural unit pieces are opposite to be arranged in parallel, first structure list
The two sides of first piece are removably connect with a side of two the second structural unit pieces respectively, form square border structure；
First structure unit piece, the second structural unit piece are vertically set on third structural unit on piece,
Third structural unit on piece certain distance outside the reserved test specimen position line is provided with and first structure unit piece, the second structure
Unit on piece buckles the buckle fixed piece matched；Between concrete sample and first structure unit piece, the second structural unit piece
For sticky gypsum casting space.
Further, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：The third structure
Unit on piece is additionally provided with the mounting hole for connecting with testing stand.
Preferably, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Described first
Structural unit piece, the second structural unit piece and a third structural unit piece are transparent plastic sheet.
Preferably, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Described first
It is separately connected on two sides of structural unit piece and is provided with articulation piece, hinge jack is provided on the articulation piece.
Further, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Second structure
Corresponding position is provided with the plug matched with hinge jack on unit piece side.
Preferably, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Described first
There are two articulation piece, two of them articulation piece is located at away from 30mm at the top of first structure unit piece the every side setting of structural unit piece
At 120mm.
Preferably, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Described first
Two side edge of structural unit piece offer tongue-and-groove；The second structural unit piece, two side edge opposite positions are set
It is equipped with the tenon matched with tongue-and-groove.
Further, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：The tongue-and-groove is square
Shape hole, tenon are " convex " shape structure.
Preferably, the concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Described first
Structural unit piece, the second structural unit piece are respectively apart from corresponding reserved test specimen position line 5mm.
The present invention also provides the application method of above-mentioned concrete biaxial compression test specimen about beam processing apparatus, feature exists
In including the following steps：
（1）Third unit structure piece is fixed on testing stand, the concrete sample made is placed on third unit structure piece
On test specimen reserved location line in；
（2）First structure unit piece, the second structural unit piece are passed through buckle respectively to connect with third structural unit piece, according still further to
Sequence connects first structure unit piece, the hinge jack of the second structural unit piece, plug, and tongue-and-groove, tenon connection realize keeper
The combination connection of formula interlocking；
（3）Start to pour prefabricated sticky stone between concrete sample and first structure unit piece, the second structural unit piece
Cream；
（4）After the completion of sticky gypsum pours, the hinge on opening first structure unit piece, the second structural unit piece side is inserted
Hole, plug connection are connected with tongue-and-groove, tenon, conveniently stripped taking-up test specimen.
Beneficial effect：A kind of concrete biaxial compression test specimen provided by the invention about beam processing apparatus, using high-intensitive saturating
Bright plastic plate material is highly-safe, strong operability, and the effect of each unit structure is comprehensively and the division of labor is clear, guarantees surface of test piece note
The planarization of slurry, hinge jack and hinge jack match the plug used, realize the detachability of mold, can carry out outside
The connection of frame.The buckle of the buckle fixed piece and first structure unit piece, the second structural unit piece lower part of third structural unit piece
Close connection, stands the first, second structural unit piece firmly around concrete sample, and prevent grout material from leaking outside.Slip casting
Using sticky gypsum, in test specimen axis hand-pulled noodles, sticky gypsum can be preferably bonded together material with load plate, reduce load plate
Effect of contraction；In test specimen axis pressure surface, sticky gypsum forms a protective layer, can be effectively improved steel plate to the anti-attrition of concrete about
Shu Zuoyong improves the accuracy of experimental test.It is cheap to test material therefor, it is easy to operate, it is easy for installation, it can be realized material
Expect recycling, it is practical.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of first structure unit piece；
Fig. 3 is the structural schematic diagram of the second structural unit piece；
Fig. 4 is the structural schematic diagram of third structural unit piece；
In figure：1, first structure unit piece；2, hinge jack；3, tongue-and-groove；4, it buckles；5, the second structural unit piece；6, plug；7；
Tenon；8, it buckles；9, third structural unit piece；10, bolt；11, fixed piece is buckled；12, test specimen reserved location line.
Specific embodiment
The present invention will be further explained combined with specific embodiments below.
As shown in Figures 1 to 4, a kind of concrete biaxial compression test specimen about beam processing apparatus, here with common 150mm '
It is illustrated for 150mm ' 150mm cube concrete sample.Package unit includes the first structure list of two relative positions
First piece 1 and two the second structural unit pieces 5 and a third structural unit piece 9 of bottom, a total of five unit piece surround one
Concrete sample is trapped among and wherein carries out pouring sticky gypsum, to form a protective layer, subtracts by the rectangle outer rim of a roof system
Few axis pulls to the effect of contraction for pressing to load plate to concrete with axis, improves the reliability of experimental result.The first structure list
First piece 1, the second structural unit piece 5 and third result unit piece 9 are transparent plastic sheet structure, the first structure unit piece 1
Two side edge offer tongue-and-groove 3, and two sides of first structure unit piece 1 are respectively provided with two flexible plastic sheet articulation pieces, from
Upper and lower position is respectively to locate away from top 30mm and 120mm, equipped with hinge jack 2 in flexible plastic sheet, in the second structural unit
The outer surface of piece 5, which is equipped with, matches the plug 6 used with hinge jack 2, realizes the combination connection of keeper formula interlocking, institute by plug 6
The both ends for stating the second structural unit piece 5, which are equipped with, matches the tenon 7 used with tongue-and-groove 3, realizes the combination connection of keeper formula interlocking, the
One structural unit piece, the second structural unit piece bottom be provided with buckle 4,8, two groups of first structure unit pieces, second structures
Unit piece is buckled with reserved buckle fixed piece 11, is fixed on third structural unit on piece, then by third unit structure piece
It is fixed on testing stand with bolt 10.The concrete sample position line, first structure unit piece, the are reserved in third structural unit
Two structural unit pieces pour the sticky gypsum protective layer for building up 5mm from position line 5mm, finally to test specimen coagulation forming, by
The hinge opening of one structural unit piece, the second structural unit piece, it is conveniently stripped, it finally takes out model and is tested.
The specific preparation manipulation method of test specimen protective layer is as follows：
（1）Third unit structure piece is fixed on testing stand, the concrete sample made is placed on third unit structure piece
On test specimen reserved location；
（2）First structure unit piece, the second structural unit piece are connect by buckle with third structural unit piece, according still further to sequence
First structure unit piece, the second structural unit piece hinge jack are connected with tongue-and-groove tenon, and check fixing situation；
（3）Start to pour prefabricated sticky gypsum between test specimen and first structure unit piece, the second structural unit piece；
（4）Hinge jack and tenon after sticky gypsum pours, on opening first structure unit piece, the second structural unit piece side
Head, make its it is smooth sprawl, facilitate taking-up test specimen；
（5）This concrete sample is placed on biaxial tension test testing machine, tension face is allowed to be bonded with load, and compression face is not done
Bonding；
（6）After sticky gypsum final set, one layer of glycerol is smeared on compression face, then sufficient lubrication is tested.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of concrete biaxial compression test specimen about beam processing apparatus, it is characterised in that：Including two first structure unit pieces, two
A second structural unit piece and a third structural unit piece,
The third structural unit piece is horizontally disposed, as the bottom structure of device, setting in the middle part of the third structural unit piece
There is the reserved test specimen position line, places concrete sample for positioning；
The first structure unit piece, the second structural unit piece bottom side portion be provided with and connect for third structural unit piece
Buckle；Two first structure unit pieces are opposite to be arranged in parallel, and two the second structural unit pieces are opposite to be arranged in parallel, first structure list
The two sides of first piece are removably connect with a side of two the second structural unit pieces respectively, form square border structure；
First structure unit piece, the second structural unit piece are vertically set on third structural unit on piece,
Third structural unit on piece is provided with the buckle matched with first structure unit piece, the second structural unit on piece buckle and prohibits
Plug with molten metal part；It is sticky gypsum casting space between concrete sample and first structure unit piece, the second structural unit piece.
2. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：The third knot
Structure unit on piece is additionally provided with the mounting hole for connecting with testing stand.
3. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：First knot
Structure unit piece, the second structural unit piece and a third structural unit piece are transparent plastic sheet.
4. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：First knot
It is separately connected on two sides of structure unit piece and is provided with articulation piece, hinge jack is provided on the articulation piece.
5. concrete biaxial compression test specimen according to claim 4 about beam processing apparatus, it is characterised in that：Second knot
Corresponding position is provided with the plug matched with hinge jack on structure unit piece side.
6. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：First knot
The setting of structure unit piece every side there are two articulation piece, two of them articulation piece be located at away from 30mm at the top of first structure unit piece and
At 120mm.
7. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：First knot
Two side edge of structure unit piece offer tongue-and-groove；The second structural unit piece, two side edge opposite position settings
There is the tenon matched with tongue-and-groove.
8. concrete biaxial compression test specimen according to claim 7 about beam processing apparatus, it is characterised in that：The tongue-and-groove is
Rectangular opening, tenon are " convex " shape structure.
9. concrete biaxial compression test specimen according to claim 1 about beam processing apparatus, it is characterised in that：First knot
Structure unit piece, the second structural unit piece are respectively apart from corresponding reserved test specimen position line 5mm.
10. the application method of -9 described in any item concrete biaxial compression test specimens about beam processing apparatus according to claim 1,
It is characterized in that, includes the following steps：
（1）Third unit structure piece is fixed on testing stand, the concrete sample made is placed on third unit structure piece
On test specimen reserved location line in；
（2）First structure unit piece, the second structural unit piece are passed through buckle respectively to connect with third structural unit piece, according still further to
Sequence connects first structure unit piece, the hinge jack of the second structural unit piece, plug, and tongue-and-groove, tenon connection realize keeper
The combination connection of formula interlocking；
（3）Start to pour prefabricated sticky stone between concrete sample and first structure unit piece, the second structural unit piece
Cream；
（4）After the completion of sticky gypsum pours, the hinge on opening first structure unit piece, the second structural unit piece side is inserted
Hole, plug connection are connected with tongue-and-groove, tenon, conveniently stripped taking-up test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810705666.5A CN108844809A (en) | 2018-07-02 | 2018-07-02 | A kind of concrete biaxial compression test specimen about beam processing apparatus |
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| CN201810705666.5A CN108844809A (en) | 2018-07-02 | 2018-07-02 | A kind of concrete biaxial compression test specimen about beam processing apparatus |
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| CN108844809A true CN108844809A (en) | 2018-11-20 |
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| CN201810705666.5A Pending CN108844809A (en) | 2018-07-02 | 2018-07-02 | A kind of concrete biaxial compression test specimen about beam processing apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975120A (en) * | 2019-04-18 | 2019-07-05 | 中国建筑材料科学研究总院有限公司 | Concrete restraint stress and deformational stress measuring device and measuring method |
| CN113092247A (en) * | 2021-03-03 | 2021-07-09 | 南京理工大学 | Ceramic prestress loading device and mounting method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936939A (en) * | 2012-11-16 | 2013-02-20 | 马鞍山十七冶工程科技有限责任公司 | Composite light wall board and production method thereof |
| CN103015619A (en) * | 2012-12-27 | 2013-04-03 | 南京工业大学 | Novel composite partition wall batten and production process thereof |
| CN104493955A (en) * | 2014-12-02 | 2015-04-08 | 段志祥 | Method for molding self-heat-preservation shale brick |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN105108888A (en) * | 2015-02-11 | 2015-12-02 | 武夷学院 | Overall type test sample mold locked through magnetic force |
| CN106501070A (en) * | 2016-11-15 | 2017-03-15 | 河海大学 | A kind of observation of rock Freezing-Melting Condition lower axle pressure process of the test and preventer |
| CN106965297A (en) * | 2017-04-27 | 2017-07-21 | 福州大学 | Easy mold release assembling concrete reference block mould and its method of work |
-
2018
- 2018-07-02 CN CN201810705666.5A patent/CN108844809A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936939A (en) * | 2012-11-16 | 2013-02-20 | 马鞍山十七冶工程科技有限责任公司 | Composite light wall board and production method thereof |
| CN103015619A (en) * | 2012-12-27 | 2013-04-03 | 南京工业大学 | Novel composite partition wall batten and production process thereof |
| CN104493955A (en) * | 2014-12-02 | 2015-04-08 | 段志祥 | Method for molding self-heat-preservation shale brick |
| CN105108888A (en) * | 2015-02-11 | 2015-12-02 | 武夷学院 | Overall type test sample mold locked through magnetic force |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN106501070A (en) * | 2016-11-15 | 2017-03-15 | 河海大学 | A kind of observation of rock Freezing-Melting Condition lower axle pressure process of the test and preventer |
| CN106965297A (en) * | 2017-04-27 | 2017-07-21 | 福州大学 | Easy mold release assembling concrete reference block mould and its method of work |
Non-Patent Citations (1)
| Title |
|---|
| 台湾仲辉实业股份有限公司: "混凝土块体抗压强度检测的石膏浆抹面法", 《建筑砌块与砌块建筑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975120A (en) * | 2019-04-18 | 2019-07-05 | 中国建筑材料科学研究总院有限公司 | Concrete restraint stress and deformational stress measuring device and measuring method |
| CN109975120B (en) * | 2019-04-18 | 2021-07-20 | 中国建筑材料科学研究总院有限公司 | Concrete constraint stress and deformation stress measuring device and measuring method |
| CN113092247A (en) * | 2021-03-03 | 2021-07-09 | 南京理工大学 | Ceramic prestress loading device and mounting method thereof |
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Application publication date: 20181120 |
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