CN106018068A - Test auxiliary device for detecting concrete splitting tensile strength - Google Patents
Test auxiliary device for detecting concrete splitting tensile strength Download PDFInfo
- Publication number
- CN106018068A CN106018068A CN201610454254.XA CN201610454254A CN106018068A CN 106018068 A CN106018068 A CN 106018068A CN 201610454254 A CN201610454254 A CN 201610454254A CN 106018068 A CN106018068 A CN 106018068A
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- Prior art keywords
- base plate
- tensile strength
- concrete
- test
- auxiliary device
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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
- G01N3/02—Details
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test auxiliary device for detecting concrete splitting tensile strength. The device comprises a bottom plate (1) and a cover plate (2). The bottom plate (1) is provided with a protruding lower cushion table (3) used for supporting a concrete sample (100), the lower cushion table (3) is provided with a circular arc surface, the cover plate (2) is provided with a protruding upper cushion table (4) used for pressing the concrete sample (100) downwards, and the upper cushion table (4) is provided with a circular arc surface. The test auxiliary device further comprises a positioning structure. The positioning structure can position the concrete sample (100) so as to ensure that the arc top of the lower cushion table (3) makes contact with the center line of the bottom face of the concrete sample (100) and the arc top of the upper cushion table (4) makes contact with the center line of the top face of the concrete sample (100). The test auxiliary device is simple in structure, convenient to operate and small in test error.
Description
[technical field]
The present invention relates to a kind of device detecting tensile strength, more specifically a kind of detection is mixed
The experiment auxiliary device of solidifying soil tensile splitting strength.
[background technology]
Concrete tensile property is one of its basic mechanical character, the most directly measures concrete axial
The test of heart tensile property has certain difficulty, and test data discreteness is relatively big, the most typically
Concrete test cube is split and draws test.
Current splitting draws that test is general to be used filler strip to carry out test cube to split and draw test.In test
Time, first to draw parallel lines to determine splitting surface at the end face of the concrete test block of molding and bottom surface
Position, had not only bothered in the line of test specimen enterprising pedestrian work but also had existed the impact of anthropic factor, and impact is drawn
The precision of line, and need manually to place filler strip during subsequent operation and with the line pair drawn
Standard, therefore, the position of splitting surface tends not to ensure the center at test specimen, thus affects
The accuracy of test.During it addition, concrete test block is cut by prior art, it is to put down at one piece
Two filler strips are placed on whole backing plate, concrete test block is clipped between two filler strips, by coagulation
When soil block cuts from centre, it may appear that the skew of filler strip, it is difficult to operation, has had a strong impact on splitting
The reliability of tensile strength values, reduces work efficiency and wastes the time.So, owing to lacking
The most special few splitting tensile test auxiliary device, the most tired when not only causing test implementation
Difficulty, and the error of its test result is the biggest.
Therefore, the present invention is based on above deficiency and produces.
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, it is provided that a kind of detection concrete splitting
The experiment auxiliary device of tensile strength, this device can quickly position concrete sample, meets examination
Standard inspection alignment request, and simple in construction, easy to operate.Effectively control the horizontal positioned shape of test specimen
State, reaches short form test operation sequence, reduces test error, uses more practical and convenient.
The present invention is achieved by the following technical solutions:
A kind of experiment auxiliary device for detecting concrete splitting tensile strength, its feature exists
In: include base plate 1 and cover plate 2, described base plate 1 be provided with protrusion for supporting coagulation
The lower pad 3 of soil test specimen 100, described lower pad 3 has arc-shaped surface, described cover plate
The 2 upper pad 4 for depressing concrete sample 100 being provided with protrusion, described upper pad
4 have arc-shaped surface, and described experiment auxiliary device also includes can be fixed to concrete sample 100
Position is so that it is guaranteed that arc top and the linear contact lay in the bottom surface of concrete sample 100 of lower pad 3 guarantee
The arc top of upper pad 4 and the location structure of linear contact lay in the end face of concrete sample 100.
Experiment auxiliary device for detecting concrete splitting tensile strength as above, it is special
Levy and be: described location structure includes the lower location division 51 being located on base plate 1 and is located at lid
Upper location division 52 on plate 2.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
Include in: described lower location division 51 protruding from base plate 1 and cross section L-shaped can
The first corner baffle 511 coordinated with the diagonal angle seamed edge of concrete sample 100 and the second turning gear
Plate 512.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
Include in: described upper location division 52 protruding from cover plate 2 and cross section L-shaped can
The 3rd corner baffle 521 coordinated with the diagonal angle seamed edge of concrete sample 100 and the 4th turning gear
Plate.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
In: described base plate 1 is provided with two can carry out diagonal brace to concrete sample 100 opposite flank
Diagonal brace assembly 6.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
In: each described diagonal brace assembly 6 includes the bracing frame 61 that one end and base plate 1 are rotationally connected,
Described bracing frame 61 other end is provided with the supporting part 62 being abutted against with concrete sample 100, institute
It is additionally provided with spring 63 between middle part and the base plate 1 of the bracing frame 61 stated.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
In: described base plate 1 is provided with hold-down support 64, is provided with spiral shell in described hold-down support 54
Bolt 65, one end of described bracing frame 61 is provided with the connection ring 66 being set on bolt 65,
Retainer ring 67, described spring 63 one end and retainer ring 67 it is additionally provided with on described base plate 1
Be connected, the other end is connected in the middle part of bracing frame 61.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
In: described base plate 1 and lower pad 3 are formed in one structure, described cover plate 2 and upper pad
Platform 4 is formed in one structure.
The experiment auxiliary device detecting concrete splitting tensile strength as above, its feature exists
In: described base plate 1, lower pad 3, cover plate 2 and upper pad 4 are alloy material and make.
Compared with prior art, the present invention has the following advantages:
1, lower pad and the upper pad of the present invention is respectively provided with arc-shaped surface, works as concrete sample
When being clipped in therebetween, the arc top of lower pad contacts with mattess, the arc top of upper pad is with mixed
The end face contact of solidifying soil test specimen.Owing to being arc-shaped surface, so when arc-shaped surface and plane contact
Time, the two position, joint presents linear contact lay, so by the cooperation of location structure, making underlay
The arc top of platform is directed at the bottom surface center line of concrete sample, and makes arc top and the concrete of pad
The end face center line alignment of test specimen, therefore, lower pad is just at the bottom surface midline position of concrete sample
Place is formed and supports, and upper pad is pressed under just being formed at the end face midline position of concrete sample,
So that it is guaranteed that the stress of concrete sample heart position wherein, improve the accuracy of test.And
And clamp concrete sample by the upper pad and lower pad with arc-shaped surface, it is not necessary to
Center line is drawn in the bottom surface of concrete sample and bottom surface, thus reduces test error, improves testing efficiency,
Can be widely used in normal concrete Split-tension of Rolled performance test, practicality is stronger.
2, the base plate of the present invention is provided with two and can carry out concrete sample opposite flank tiltedly
The diagonal brace assembly of support, each diagonal brace assembly includes the bracing frame that one end and base plate are rotationally connected,
The support other end is provided with the supporting part being abutted against with concrete sample, the middle part of bracing frame and base plate it
Between be additionally provided with spring, due to the bracing frame opposite flank skewed horizontal load to concrete sample, it is ensured that
The concrete sample stable and balance when pressurized, can ensure that the accuracy of result of the test.
3, present configuration is simple, easy to operate, is suitable for popularization and application.
[accompanying drawing explanation]
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is the schematic diagram after the present invention clamps concrete sample；
Fig. 3 is the axonometric chart of the parts of the present invention；
Fig. 4 is the schematic diagram of the parts of the present invention.
[detailed description of the invention]
The invention will be further described below in conjunction with the accompanying drawings:
A kind of experiment auxiliary device for detecting concrete splitting tensile strength, including base plate 1
With cover plate 2, described base plate 1 be provided with protrusion for supporting concrete sample 100 times
Pad 3, described lower pad 3 has arc-shaped surface, and described cover plate 2 is provided with protrusion
For depressing the upper pad 4 of concrete sample 100, described upper pad 4 has arc-shaped surface,
Described experiment auxiliary device also includes to position concrete sample 100 so that it is guaranteed that underlay
Linear contact lay guarantee the arc top of upper pad 4 in the arc top of platform 3 and the bottom surface of concrete sample 100
With the location structure of linear contact lay in the end face of concrete sample 100.
Described location structure includes the lower location division 51 being located on base plate 1 and is located at cover plate 2
On upper location division 52.
Described lower location division 51 include protruding from base plate 1 and cross section L-shaped can
The first corner baffle 511 coordinated with the diagonal angle seamed edge of concrete sample 100 and the second turning gear
Plate 512.
Described upper location division 52 include protruding from cover plate 2 and cross section L-shaped can
The 3rd corner baffle 521 coordinated with the diagonal angle seamed edge of concrete sample 100 and the 4th turning gear
At dotted line position in plate Fig. 1 cover plate 2.
Described base plate 1 is provided with two can carry out diagonal brace to concrete sample 100 opposite flank
Diagonal brace assembly 6.
Each described diagonal brace assembly 6 includes the bracing frame 61 that one end and base plate 1 are rotationally connected,
Described bracing frame 61 other end is provided with the supporting part 62 being abutted against with concrete sample 100, institute
It is additionally provided with spring 63 between middle part and the base plate 1 of the bracing frame 61 stated.
Described base plate 1 is provided with hold-down support 64, is provided with spiral shell in described hold-down support 54
Bolt 65, one end of described bracing frame 61 is provided with the connection ring 66 being set on bolt 65,
Retainer ring 67, described spring 63 one end and retainer ring 67 it is additionally provided with on described base plate 1
Be connected, the other end is connected in the middle part of bracing frame 61.
Described base plate 1 and lower pad 3 are formed in one structure, described cover plate 2 and upper pad
Platform 4 is formed in one structure.In order to alleviate the weight of apparatus of the present invention itself, cover plate 2 and the end
Plate 1 is respectively adopted absolute construction, without attachment structure between cover plate 2 and base plate 1, on base plate 1
Lower pad 3 be solid construction, and the upper pad 4 on cover plate 2 is also solid construction, the end
Other region on plate 1 is hollow-core construction or flake structure, and other region on cover plate 2 is
It is hollow-core construction or flake structure.
Described base plate 1, lower pad 3, cover plate 2 and upper pad 4 are alloy material and make.
It is accordingly possible to ensure while structural strength, it is ensured that device will not be because of impact test of getting rusty
Test result.
Operation principle:
When testing, first, apparatus of the present invention are placed on the center of testing machine work platforms
Position；Then, rotate and pull-up bracing frame 61, thus the concrete sample of test will be needed
100 are placed on described lower pad 3, at the first corner baffle 511 and the second corner baffle 512
Effect under, make the bottom of concrete sample 100 that significantly shifted laterally will not occur；Connect
Get off, cover plate 2 is placed on the top of concrete sample 100, the upper pad 4 on cover plate 2
Just contact with concrete sample 100 end face, the 3rd corner baffle 521 and the 4th corner baffle pair
Concrete sample 100 top positions.Owing to lower pad 3 and upper pad 4 have arc-shaped surface,
So lower pad 3 just forms linear contact lay with the bottom center of concrete sample 100, and upper pad
Platform 4 just forms linear contact lay with the end face center line of concrete sample 100.Due to base plate 1 and cover plate
Concrete sample 100 is placed, so resetting at spring 63 and pulling downward on bracing frame between 2
When 61, the supporting part 62 of bracing frame 61 end is just resisted against the side of concrete sample 100
On, owing to diagonal brace assembly 6 is two, and it is resisted against on the opposite flank of concrete sample 100,
So diagonal brace assembly 6 keeps the stable of concrete sample 100 and balance；Finally, test is started
Machine, carries out test and loads and make cover plate press for 2 times, until concrete sample 100 destroys, and record
Failing load, now completes the splitting tensile test of a concrete sample 100.Repeat above-mentioned
Process, can carry out the splitting tensile test of other concrete sample 100.
In whole process of the test, not only need not manually in the bottom surface of concrete sample 100 and
End face draws center line, and stablizing when ensure that concrete sample 100 pressurized in process of the test
With balance, it is to avoid the error of some anthropic factors, improve test efficiency, reduce test behaviour
Make difficulty, simultaneously apparatus of the present invention simple in construction, practical.
Claims (9)
1., for detecting an experiment auxiliary device for concrete splitting tensile strength, it is special
Levy and be: include that base plate (1) and cover plate (2), described base plate (1) are provided with protrusion
For supporting the lower pad (3) of concrete sample (100), described lower pad (3) has
Arc-shaped surface, described cover plate (2) be provided with protrusion for depressing concrete sample (100)
Upper pad (4), described upper pad (4) has an arc-shaped surface, described test auxiliary
Device also includes can be to concrete sample (100) location so that it is guaranteed that the arc top of lower pad (3)
With linear contact lay in the bottom surface of concrete sample (100) guarantee that the arc top of upper pad (4) is with mixed
The location structure of linear contact lay in the end face of solidifying soil test specimen (100).
Examination for detecting concrete splitting tensile strength the most according to claim 1
Test auxiliary device, it is characterised in that: described location structure includes being located on base plate (1)
Lower location division (51) and the upper location division (52) being located on cover plate (2).
The test of detection concrete splitting tensile strength the most according to claim 2 is auxiliary
Help device, it is characterised in that: described lower location division (51) includes protruding from base plate (1)
And that what cross section was L-shaped can coordinate with the diagonal angle seamed edge of concrete sample (100)
One corner baffle (511) and the second corner baffle (512).
4. according to the examination of the detection concrete splitting tensile strength described in Claims 2 or 3
Test auxiliary device, it is characterised in that: described upper location division (52) includes protruding from cover plate (2)
And that what cross section was L-shaped can coordinate with the diagonal angle seamed edge of concrete sample (100)
Three corner baffles (521) and the 4th corner baffle.
5. according to the detection concrete splitting tensile strength described in claim 1 or 2 or 3
Experiment auxiliary device, it is characterised in that: described base plate (1) is provided with two can be to mixed
Solidifying soil test specimen (100) opposite flank carries out the diagonal brace assembly (6) of diagonal brace.
The test of detection concrete splitting tensile strength the most according to claim 5 is auxiliary
Help device, it is characterised in that: each described diagonal brace assembly (6) includes one end and base plate (1)
The bracing frame (61) being rotationally connected, described bracing frame (61) other end is provided with and concrete
The supporting part (62) that test specimen (100) is abutted against, the middle part of described bracing frame (61) and base plate
(1) spring (63) it is additionally provided with between.
The test of detection concrete splitting tensile strength the most according to claim 6 is auxiliary
Help device, it is characterised in that: described base plate (1) is provided with hold-down support (64), described
Hold-down support (54) in be provided with bolt (65), one end of described bracing frame (61) sets
There is the connection ring (66) being set on bolt (65), described base plate (1) is additionally provided with solid
Determine ring (67), described spring (63) one end is connected with retainer ring (67), the other end with
Bracing frame (61) middle part is connected.
8. according to the detection concrete splitting tensile strength described in claim 1 or 2 or 3
Experiment auxiliary device, it is characterised in that: described base plate (1) and lower pad (3) are one
Forming structure, described cover plate (2) and upper pad (4) are formed in one structure.
9. according to the detection concrete splitting tensile strength described in claim 1 or 2 or 3
Experiment auxiliary device, it is characterised in that: described base plate (1), lower pad (3), cover plate
(2) it is alloy material makes with upper pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454254.XA CN106018068A (en) | 2016-06-20 | 2016-06-20 | Test auxiliary device for detecting concrete splitting tensile strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454254.XA CN106018068A (en) | 2016-06-20 | 2016-06-20 | Test auxiliary device for detecting concrete splitting tensile strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106018068A true CN106018068A (en) | 2016-10-12 |
Family
ID=57086247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610454254.XA Pending CN106018068A (en) | 2016-06-20 | 2016-06-20 | Test auxiliary device for detecting concrete splitting tensile strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106018068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644691A (en) * | 2016-12-09 | 2017-05-10 | 安徽省建筑工程质量监督检测站 | Support leveling device for testing of splitting tensile strength and clamp thereof |
| CN108709800A (en) * | 2018-08-31 | 2018-10-26 | 中国矿业大学 | A kind of centralising device for concrete sample spilt test |
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| JPH06241969A (en) * | 1993-02-12 | 1994-09-02 | Tekken Constr Co Ltd | Testing method for net tension of concrete and tester jig |
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| CN201859089U (en) * | 2010-08-03 | 2011-06-08 | 天津大学 | Test fixture for split tensile strength of concrete |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644691A (en) * | 2016-12-09 | 2017-05-10 | 安徽省建筑工程质量监督检测站 | Support leveling device for testing of splitting tensile strength and clamp thereof |
| CN108709800A (en) * | 2018-08-31 | 2018-10-26 | 中国矿业大学 | A kind of centralising device for concrete sample spilt test |
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Application publication date: 20161012 |
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