CN201945499U - Submersible buried rod for concrete limit tension specimen - Google Patents
Submersible buried rod for concrete limit tension specimen Download PDFInfo
- Publication number
- CN201945499U CN201945499U CN2011200387764U CN201120038776U CN201945499U CN 201945499 U CN201945499 U CN 201945499U CN 2011200387764 U CN2011200387764 U CN 2011200387764U CN 201120038776 U CN201120038776 U CN 201120038776U CN 201945499 U CN201945499 U CN 201945499U
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- China
- Prior art keywords
- bar
- buried rod
- specimen
- screw
- submersible
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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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Abstract
A submersible buried rod for a concrete limit tension specimen comprises the buried rod, one end of the buried rod is provided with a screw hole along the axis, one end of a fixed screw is provided with an external thread matched with an inner thread of the screw hole, the other end of the fixed screw is provided with a screw cap, one end of the buried rod with the screw hole is thicker, the outer surface of the buried rod is full of threads which are coarse pitch threads, and the buried rod is made of steel and in a bar type. In the submersible buried rod for the concrete limit tension specimen provided by the utility model, an exposed section does not exist, the defect of the existing buried rod is overcome, obstruction can not be caused to the disassembly of a template, looseness and scrap of the specimen caused by collision caused on the buried rod due to exposure are avoided, and due to the arrangement of the inner thread of the screw hole, the damage to the threads during a maintenance and transportation process of the specimen is avoided. The submersible buried rod has a simple structure and is convenient to use, the adverse effect on the specimen brought by burying is avoided, and the consistency of the stretching force direction of the specimen and the axis of the specimen is strong, so that the testing result is more accurate.
Description
Technical field
The utility model relates to a kind of concrete ultimate elongation test specimen member, and especially a kind of concrete ultimate elongation test specimen buries bar with sunk.
Background technology
In the specimen molding link of concrete ultimate elongation test, present way normally respectively is embedded into one at the test specimen two ends and buries bar, is connected with testing machine when being used for stretched operation.That imbeds buries bar and can't sink to fully in the concrete sample, can be provided with external thread above one section of test piece end exposure, and this structure taking off in the template operation after the test specimen sclerosis penetrates template owing to bury the bar revealed section, is unfavorable for the dismounting of template end plate; Bury the external thread of bar revealed section,, be easy to touched in the handling process and damage, influence the use of screw thread in the test specimen maintenance; And cause easily that also to bury bar loosening because revealed section is touched, the test specimen concrete destruction, to bury bar ineffective thereby make, and causes test specimen to cancel.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of concrete ultimate elongation test specimen and buries bar with sunk, there is not revealed section, overcome existing defective of burying bar, be convenient to the template dismounting, avoided burying bar and cancelled because of exposing the loosening and test specimen that causes that collided with.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of concrete ultimate elongation test specimen buries bar with sunk, comprise and imbed bar, imbed bar one end and be provided with screw along axis, standing screw one end is provided with the external thread that matches with the screw internal thread, and the standing screw other end is provided with nut.
An end of imbedding bar band screw is thicker.
Imbed rod outer surface and be covered with screw thread.
Imbedding the rod outer surface screw thread is coarse thread.
Imbedding bar is the steel club.
The concrete ultimate elongation test specimen that the utility model provides buries bar with sunk, because imbedding bar one end is provided with screw along axis, standing screw one end is provided with the external thread that matches with the screw internal thread, when the concrete sample moulding, imbed bar is fixed on end template by standing screw center, imbed the big face of the axis normal of bar when guaranteeing specimen molding in end template, behind the specimen molding, standing screw withdraws from, form removable, imbedding bar stays in the concrete, connecting testing machine during for tension test uses, imbed bar and sink to fully in the concrete sample,, do not have revealed section at the no outshot in test specimen surface, overcome existing defective of burying bar, can not cause obstruction to form removable, avoid burying bar and cancelled because of exposing the loosening and test specimen that causes that collided with, the setting of screw internal thread has been avoided in the test specimen maintenance, the infringement of double thread in the handling process; An end of imbedding bar band screw is thicker, makes that its end cross-sectional is long-pending to be increased, and with end template bigger surface of contact is arranged, and the axis that has guaranteed to imbed bar is consistent with the test specimen axis; Imbed the design that rod outer surface is covered with screw thread, increased concrete, guaranteed concrete ultimate elongation accuracy of experimental results imbedding the bond stress of bar.The utility model is simple in structure, easy to use, has avoided the adverse effect to test specimen brought because of embedded part, and test specimen stretches and is subjected to force direction and its Axis Consistency strong, makes test findings more accurate.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises imbeds bar 1, imbeds bar 1 one ends and is provided with screw along axis, and standing screw 2 one ends are provided with the external thread that matches with the screw internal thread, and standing screw 2 other ends are provided with nut.
An end of imbedding bar 1 band screw is thicker.
Imbed bar 1 outside surface and be covered with screw thread.
Imbedding bar 1 outer surface thread is coarse thread.
Imbed bar 1 and be the steel club.
Use of the present utility model is as follows:
When the concrete sample moulding, at first clear up the center pit of end template 3, the butt end that to imbed bar 1 then clings to central hole from end template 3 inboards, again standing screw 2 is passed end template 3 and imbeds bar 1 by being threaded by center pit outward by end template 3, be fixed on the center of end template 3 after screwing.
Concrete sample withdraws from standing screw 2 after hardening in template, form removal is imbedded bar 1 and promptly stayed in the concrete sample, imbeds behind the bar 1 external suitable draw ring to connect testing machine can be for tension test the time and use.
The utility model needs symmetry respectively to bury 1 cover underground at the two ends of 1 concrete ultimate elongation test specimen, after test specimen is destroyed, breaks test piece end, takes out and imbeds bar 1, cleans out, and is coated with oil guard, for reusing.
Claims (5)
1. a concrete ultimate elongation test specimen buries bar with sunk, comprise and imbed bar (1), it is characterized in that: imbed bar (1) one end and be provided with screw along axis, standing screw (2) one ends are provided with the external thread that matches with the screw internal thread, and standing screw (2) other end is provided with nut.
2. concrete ultimate elongation test specimen according to claim 1 buries bar with sunk, it is characterized in that: an end of imbedding bar (1) band screw is thicker.
3. concrete ultimate elongation test specimen according to claim 1 and 2 buries bar with sunk, it is characterized in that: imbed bar (1) outside surface and be covered with screw thread.
4. concrete ultimate elongation test specimen according to claim 3 buries bar with sunk, it is characterized in that: imbedding bar (1) outer surface thread is coarse thread.
5. concrete ultimate elongation test specimen according to claim 1 and 2 buries bar with sunk, it is characterized in that: imbedding bar (1) is the steel club.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200387764U CN201945499U (en) | 2011-02-15 | 2011-02-15 | Submersible buried rod for concrete limit tension specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200387764U CN201945499U (en) | 2011-02-15 | 2011-02-15 | Submersible buried rod for concrete limit tension specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945499U true CN201945499U (en) | 2011-08-24 |
Family
ID=44472837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200387764U Expired - Fee Related CN201945499U (en) | 2011-02-15 | 2011-02-15 | Submersible buried rod for concrete limit tension specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236964A (en) * | 2013-06-08 | 2014-12-24 | 青岛理工大学 | Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold |
-
2011
- 2011-02-15 CN CN2011200387764U patent/CN201945499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236964A (en) * | 2013-06-08 | 2014-12-24 | 青岛理工大学 | Mold for concrete axial tension test piece and rod piece pre-embedding method by using the mold |
| CN104236964B (en) * | 2013-06-08 | 2016-08-17 | 青岛理工大学 | Concrete axial is to tensile test specimen mould and the rod member built-in process that uses this mould |
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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: 20110824 Termination date: 20140215 |