CN203191259U - Concrete axial tension test device - Google Patents
Concrete axial tension test device Download PDFInfo
- Publication number
- CN203191259U CN203191259U CN 201320185453 CN201320185453U CN203191259U CN 203191259 U CN203191259 U CN 203191259U CN 201320185453 CN201320185453 CN 201320185453 CN 201320185453 U CN201320185453 U CN 201320185453U CN 203191259 U CN203191259 U CN 203191259U
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- CN
- China
- Prior art keywords
- pulling force
- test
- concrete
- tension
- spherical
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a concrete axial tension test device which comprises a pull ring (2) arranged on a test piece (1) and a spherical tension joint (3) arranged on a tester, and is characterized in that a flexible tension rope (4) is connected between the pull ring (2) on the test piece (1) and the spherical tension joint (3) and consists of a plurality of closed circular rings (5) which are connected in series with one another; and two ends of the flexible tension rope (4) are respectively connected with an upper pull hook (6) and a lower pull hook (7) which are used for connecting the pull ring (2) on the test piece (1) and the spherical tension joint (3). Compared with an existing concrete tension test, the concrete axial tension test device has the advantages that the eccentricity of concrete in a test process is obviously improved, the discreteness of a tension test result of the concrete is reduced, and the test result is more accurate.
Description
Technical field
The utility model belongs to the testing concrete performance equipment technical field, especially a kind of concrete axial tension experiment test device.
Background technology
The test of concrete axial tension is to measure concrete axial tensile-strength, limit stretch value and tensile modulus of elasticity.The testing machine of test concrete axial tension test at present should have sphere pulling force joint, and the draw ring on the test specimen is connected with the pulling force joint.Sphere pulling force joint is in order to adjust the off-centre that test specimen and testing machine application of force axis produce.Even so, the discreteness as a result of experimental test is bigger, and is about 20% ~ 50%, had a strong impact on concrete stretching experimental test result.
Summary of the invention
The purpose of this utility model provides a kind of off-centre that can effectively improve test specimen and the generation of testing machine application of force axis, improves concrete stretching experimental test result's concrete axial tension experiment test device.Technical solution adopted in the utility model is: between the draw ring on the test specimen and testing machine upper pulling force joint, easily produce eccentric axis and the improvement carried out.This concrete axial tension experiment test device includes spherical pulling force joint on draw ring on the test specimen and the testing machine, on the draw ring on the test specimen and testing machine, be connected flexible pulling force rope between the spherical pulling force joint, flexible pulling force rope is cascaded by a plurality of closed circles, flexible pulling force rope two ends connect drag hook and following drag hook respectively, are used for connecting draw ring and spherical pulling force joint on the test specimen.By mutually adjusting axis between the series connection annulus in the flexible pulling force rope, reduce the off-centre that test specimen and testing machine application of force axis produce, realize that the accuracy of concrete stretching test findings improves.
The utility model is compared with present concrete stretching test, obviously improves concrete eccentric degree in the test process, and concrete tension test test result discreteness reduces, and test result is more accurate.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, test specimen, 2, draw ring, 3, spherical pulling force joint, 4, flexible pulling force rope, 5, closed circle, 6, go up drag hook, 7, drag hook down.
Embodiment
With reference to accompanying drawing, this concrete axial tension experiment test device includes spherical pulling force joint 3 on draw ring 2 on the test specimen 1 and the testing machine, between the draw ring 2 on the test specimen 1 and spherical pulling force joint 3, be connected flexible pulling force rope 4, flexible pulling force rope 4 is cascaded by a plurality of closed circles 5, flexible pulling force rope 4 two ends connect drag hook 6 and following drag hook 7 respectively, are used for connecting draw ring 2 and spherical pulling force joint 3 on the test specimen 1.By mutually adjusting axis between the series connection annulus in the flexible pulling force rope, reduce the off-centre that test specimen and testing machine application of force axis produce, realize that the accuracy of concrete stretching test findings improves.The quantity of series connection annulus determines according to distance between the draw ring on sample dimensions size and the test specimen and the spherical pulling force joint in the flexible pulling force rope.
Using method of the present invention is as follows: last drag hook 6 and the following drag hook 7 at flexible pulling force rope 4 two ends is connected draw ring 2 and spherical pulling force joint 3 on the test specimen 1 respectively, after all joints are linked together, slowly start testing machine, draw ring 2 to the concrete sample 1 and the closed circle 5 between the spherical pulling force joint 3 on the testing machine no longer slide and adjust, linearly, begin to carry out concrete stretching test.
Claims (1)
1. concrete axial tension experiment test device, include draw ring (2) on the test specimen (1) and the spherical pulling force joint (3) on the testing machine, it is characterized in that: between the draw ring (2) on the test specimen (1) and spherical pulling force joint (3), be connected flexible pulling force rope (4), flexible pulling force rope (4) is cascaded by a plurality of closed circles (5), flexible pulling force rope (4) two ends connect drag hook (6) and following drag hook (7) respectively, are used for connecting draw ring (2) and spherical pulling force joint (3) on the test specimen (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185453 CN203191259U (en) | 2013-04-13 | 2013-04-13 | Concrete axial tension test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185453 CN203191259U (en) | 2013-04-13 | 2013-04-13 | Concrete axial tension test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191259U true CN203191259U (en) | 2013-09-11 |
Family
ID=49108112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320185453 Expired - Fee Related CN203191259U (en) | 2013-04-13 | 2013-04-13 | Concrete axial tension test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546487A (en) * | 2016-10-24 | 2017-03-29 | 河海大学 | Avoid the concrete material direct tensile test device and test method of eccentric tension |
| CN108562491A (en) * | 2018-04-24 | 2018-09-21 | 钦州学院 | Automatic centering type rocks in direct tension experimental rig |
-
2013
- 2013-04-13 CN CN 201320185453 patent/CN203191259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546487A (en) * | 2016-10-24 | 2017-03-29 | 河海大学 | Avoid the concrete material direct tensile test device and test method of eccentric tension |
| CN108562491A (en) * | 2018-04-24 | 2018-09-21 | 钦州学院 | Automatic centering type rocks in direct tension experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140413 |