CN203561550U - Concrete tensile strength test jig - Google Patents
Concrete tensile strength test jig Download PDFInfo
- Publication number
- CN203561550U CN203561550U CN201320668091.7U CN201320668091U CN203561550U CN 203561550 U CN203561550 U CN 203561550U CN 201320668091 U CN201320668091 U CN 201320668091U CN 203561550 U CN203561550 U CN 203561550U
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- concrete
- tensile strength
- strength test
- test jig
- tension test
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Abstract
The utility model discloses a concrete tensile strength test jig. The concrete tensile strength test jig comprises a connecting arm, a fixed frame, two clamping blocks and bolts, wherein the connecting arm is fixedly arranged at one side of the fixed frame, two fixed plates are arranged in parallel at the other side of the fixed frame, the two clamping blocks are movably arranged between the two fixed plates through the bolts, the clamping blocks are semi-cylindrical, and the bolts are vertical to semicircular faces of the clamping blocks. According to the concrete tensile strength test jig disclosed by the utility model, the load applied along an axis can be guaranteed, and the condition that a concrete sample and the concrete tensile strength test jig are in the same axis can be guaranteed; furthermore, the concrete tensile strength test jig can keep clamping force with the increase of an applied load, so that the generation of a concentrated load is avoided, and the stability and uniformity of the applied load are guaranteed; moreover, the concrete sample can be effectively fixed and can be prevented from generating sliding which affects a result.
Description
Technical field
The utility model relates to a kind of concrete tension test fixture, belongs to building materials performance test apparatus technical field.
Background technology
Tensile property is concrete important indicator performance, and common method of testing is first to prepare strip concrete sample, then, by using the two ends of fixture clamping strip concrete sample, applies power test with puller system or quantitative counterweight.In prior art, conventional concrete tension test fixture exists concrete sample and fixture not in the problem of same axis, makes the load of concrete sample fail along axis direction, to apply completely; In addition, also there is concrete tension fixture holding force deficiency, can not effectively fix concrete sample, the slip that affects result easily producing, and easily produce load, make applied load stable not and even.
Utility model content
The deficiency that the utility model exists for prior art just, provides a kind of concrete tension test fixture, can avoid concrete sample and fixture not in the problem of same axis, and the load of concrete sample is applied along axis direction; Can guarantee the holding force of concrete tension fixture, can effectively fix concrete sample, avoid the slip that affects result of generation, and avoid producing load, make applied load stable, even.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of concrete tension test fixture, comprise: linking arm, fixed mount, grip block, bolt, described fixed mount one side is fixedly arranged on described linking arm, described fixed mount opposite side is arranged with two fixed heads in parallel, described grip block is two and is movably set between two described fixed heads by described bolt, described grip block is half-cylindrical, and described bolt is perpendicular to the semi circular surface of described grip block.
As the improvement of technique scheme, described fixed head is fillet isosceles trapezoid, and described bolt is arranged at the place, two base angles of described fixed head.
As the improvement of technique scheme, described fixed head is middle engraved structure.Described structure can be saved making material, and reduces the weight of concrete tension test fixture, and does not affect physical strength and the gripping performance of concrete tension test fixture.
As the improvement of technique scheme, described grip block is provided with interval rib towards a side of cambered surface, and described interval rib is provided with through hole, and described bolt is through described through hole.Described structure can be saved making material, and reduces the weight of concrete tension test fixture, and does not affect physical strength and the gripping performance of concrete tension test fixture.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Concrete tension test fixture described in the utility model can guarantee along axis load application, can guarantee that concrete sample and concrete tension test fixture are on same axis; In addition, concrete tension test fixture can keep holding force along with the increase of added load, avoided generation load, guarantees that institute's load application is stable, even; And can be effectively fixing to concrete sample, can prevent the slip that affects result of its generation; And it is high to meet intensity, the distortion of the test that do not exert an influence within the scope of a constant load, temperature, humidity requirement are low, can meet the requirement of all kinds of experimental enviroments, through practice, confirm, have the ability of carrying out reliable test under multiple testing machine condition.
Accompanying drawing explanation
Fig. 1 is concrete tension test fixture plan structure schematic diagram described in the utility model;
Fig. 2 is concrete tension test fixture forward sight structural representation described in the utility model;
Fig. 3 is the right TV structure schematic diagram of concrete tension test fixture described in the utility model.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As Figure 1-3, be concrete tension test fixture structural representation described in the utility model.Concrete tension test fixture described in the utility model, comprise: linking arm 1, fixed mount 2, grip block 3, bolt 4, described fixed mount 2 one sides are fixedly arranged on described linking arm 1, described fixed mount 2 opposite sides are arranged with two fixed heads 21 in parallel, described grip block 3 is two and is movably set between two described fixed heads 21 by described bolt 4, described grip block 3 is half-cylindrical, and described bolt 4 is perpendicular to the semi circular surface of described grip block 3.Described bolt 4 two ends are respectively arranged with nut 41 and nut 42, and described nut 41 and described nut 42 lay respectively at the outside of two described fixed heads 21.Further, described fixed head 21 is fillet isosceles trapezoid, and described bolt 4 is arranged at the place, two base angles of described fixed head 21.Optimally, described fixed head 21 is middle engraved structure.Further optimally, described grip block 3 is provided with interval rib 31 towards a side of cambered surface, and described interval rib 31 is provided with through hole (do not give and illustrating in figure), and described bolt 4 is through described through hole.
Particularly, described linking arm 1 is that positive truncated rectangular pyramids shape and long limit are that 110 mm, height are that 80 mm, minor face are 80 mm, the trapezoidal long limit of described fixed head 21 is that 250 mm, minor face are that 100 mm, height are 20 mm, the length of described bolt 4 is 170 mm, diameter is 20 mm, and the diameter of described interval rib 31 is that 100 mm, thickness are 10 mm.Concrete tension test fixture is used steel plate integral body to process, and intensity is not less than Q345 steel; Each parts carry out machining above, possess enough rigidity, not yielding, and can well contact with test specimen and rotate without slippage, and each accessory all carries out antirust processing.
During test, the end of concrete sample is placed between two described grip blocks 3, by two described concrete tension test fixtures assembling chucks two ends of fixing concrete samples respectively, be then placed in puller system or other testing apparatus or device that applies pulling force carries out tension test.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (4)
1. a concrete tension test fixture, it is characterized in that, comprise: linking arm (1), fixed mount (2), grip block (3), bolt (4), described fixed mount (2) one sides are fixedly arranged on described linking arm (1), described fixed mount (2) opposite side is arranged with two fixed heads (21) in parallel, described grip block (3) is two and is movably set between two described fixed heads (21) by described bolt (4), described grip block (3) is half-cylindrical, and described bolt (4) is perpendicular to the semi circular surface of described grip block (3).
2. concrete tension test fixture as claimed in claim 1, is characterized in that, described fixed head (21) is fillet isosceles trapezoid, and described bolt (4) is arranged at the place, two base angles of described fixed head (21).
3. concrete tension test fixture as claimed in claim 2, is characterized in that, described fixed head (21) is middle engraved structure.
4. as the concrete tension test fixture as described in arbitrary in claim 1-3, it is characterized in that, described grip block (3) is provided with interval rib (31) towards a side of cambered surface, and described interval rib (31) is provided with through hole, and described bolt (4) is through described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668091.7U CN203561550U (en) | 2013-10-28 | 2013-10-28 | Concrete tensile strength test jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668091.7U CN203561550U (en) | 2013-10-28 | 2013-10-28 | Concrete tensile strength test jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561550U true CN203561550U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320668091.7U Expired - Fee Related CN203561550U (en) | 2013-10-28 | 2013-10-28 | Concrete tensile strength test jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289356A (en) * | 2020-03-06 | 2020-06-16 | 同济大学 | Test fixture for concrete axial tension force and use method thereof |
-
2013
- 2013-10-28 CN CN201320668091.7U patent/CN203561550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289356A (en) * | 2020-03-06 | 2020-06-16 | 同济大学 | Test fixture for concrete axial tension force and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |