CN202133588U - Concrete axial tension testing clamp - Google Patents
Concrete axial tension testing clamp Download PDFInfo
- Publication number
- CN202133588U CN202133588U CN201120214519U CN201120214519U CN202133588U CN 202133588 U CN202133588 U CN 202133588U CN 201120214519 U CN201120214519 U CN 201120214519U CN 201120214519 U CN201120214519 U CN 201120214519U CN 202133588 U CN202133588 U CN 202133588U
- Authority
- CN
- China
- Prior art keywords
- test block
- test
- smooth
- block
- bloom
- Prior art date
- 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
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a concrete axial tension testing clamp, comprising a tester clamp splice, a hinge drag hook and a test block adhesive steel block; the tester clamp splice is a cylindrical steel block with two flat and smooth ends, in which one end is welded with a hexagonal nut at the central place; the hinge drag hook is a reinforcing steel bar which is smooth at the turning place of both ends; the test block adhesive steel block is a square steel block whose both ends are flat and smooth, end size is the same as the test block, and the central place at one end is welded with one hexagonal nut; and the tester clamp splicer is connected with the test block adhesive steel block by the hinge drag hook. The concrete axial tension testing clamp is accurate and rational in force transferring, simple in manufacturing, low in cost, meets the demand of engineering test in precision, and can be reused. The concrete axial tension testing clamp provided by the utility model can be widely applicable to the tension failure test of quasi brittle materials with relatively small section.
Description
Technical field
The utility model relates to a kind of test fixture that is applied to concrete axial tension test on the servo universal tester.
Background technology
For a long time; In concrete research work; Concrete tensile properties does not obtain enough attention, does not on the one hand very stress concrete tensile property because practical project design is calculated, another very important reasons be exactly also not have a kind of reliable test method to carry out concrete tensile test at present; Most of test figure all is to obtain from the test of concrete indirect tension, can not truly reflect concrete tensile property.In the last few years, along with the appearance of shell structure buildingss such as high arch dam, concrete stretch behavior was more and more paid attention to by people, because concrete tensile property plays important dominating role to the safety of this class formation.And the test of concrete axial tension is to measure concrete tensile strength and stretcher strain ability with the method for direct tensile test specimen, it be mensuration concrete stretching stress-strain full curve the most directly, the most objective, the most effective a kind of method.But because the difficulty problem of concrete axis pulling experiment makes the research of concrete stretching curve start late, data is also rare.
It is exactly the centering problem (guaranteeing that real axle draws) that solves test specimen that the concrete axle draws a difficult point in the experiment, and the current experiments device construction is complicated, and trouble is installed, and experimental procedure is loaded down with trivial details, is unfavorable for promoting.In the concrete test block axis pulling experiment, owing to the existence of reasons such as error is made in anchor clamps location, test block, make stretching experiment begin before when fixing test block, testing machine just fractures test block.Even install accurately, chuck place concrete is under the three-dimensional stress effect in the experiment, has a strong impact on experimental precision.
Summary of the invention
The utility model is will solve being connected with the concrete test block axle between concrete test block and chuck to draw eccentric technical matters; And provide a kind of concrete axle to draw the experiment anchor clamps; These anchor clamps can guarantee that through being articulated and connected the test block axle draws centering, makes servo universal tester can directly apply to the concrete axis pulling experiment.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of concrete axle draws the experiment anchor clamps; Comprise the testing machine fixture block, hinged drag hook, test block bonding bloom; Be characterized in: the testing machine fixture block is the smooth smooth cylindrical blooms in two ends, wherein hexagonal nut of end face centre of form place's vertical position welding; Hinged drag hook is that the smooth reinforcing bar in crook is played at two ends; Test block bonding bloom is that two ends are smooth smooth, and the face size square bloom identical with the bar shaped test block, wherein hexagonal nut of end face centre of form place's vertical position welding; The testing machine fixture block bonds with test block and is connected through hinged drag hook between the bloom.
Test block bonding bloom is connected with the bar shaped test block with epoxide-resin glue.The testing machine fixture block is fixed on the omnipotent experiment chuck.
The beneficial effect of the utility model is: the utility model utilizes two testing machine fixture blocks that concrete test block and testing machine chuck are separated, the clasp joint through drag hook and hexagonal nut make form between concrete test block and the testing machine hinged.Can know that by structural mechanics the hinged rod member in two ends only can carry axial tension.Under tension, hinged can the adjusting automatically between nut and drag hook receives force direction, to reach the purpose of pulling force centering.Solve the universal testing machine axle and drawn the centering problem, guaranteed the smooth completion that concrete stretches and tests.
The utility model power transmission is clear and definite and rationally, precision can meet the engineering test requirement.Make simple, with low cost, can recycle.Can extensively be extended in the fail in tension test of the less accurate hard brittle material in various cross sections.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is along the A-A sectional view among Fig. 1;
Fig. 3 is along the B-B sectional view among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1, the concrete axle of the utility model draws the experiment anchor clamps, comprises testing machine fixture block 1, hinged drag hook 2, test block bonding bloom 3.
As shown in Figure 2, testing machine fixture block 1 is columniform bloom, and two ends polish flat smooth, wherein hexagonal nut 4 of end face centre of form place's vertical position welding;
The reinforcing bar that hinged drag hook 2 has been bent for two ends plays the crook and polishes smooth, and bar diameter is looked the test block size and decided;
As shown in Figure 3, the test block bonding bloom 3 square bloom identical that be face size with bar shaped test block 5, two ends polish flat smooth, wherein hexagonal nut 4 of end face centre of form place's vertical position welding.
The step that the utility model is applied to test is following:
(1) surperficial screed is removed in bar shaped concrete test block two ends that maintenance is good polishing, until exposing coarse aggregate, and guarantees that end surfaces is smooth.With being connected with bonding bloom 3 with the two ends of epoxide-resin glue with the bar shaped test block behind the anhydrous alcohol cleaning end surfaces, epoxide-resin glue should infiltrate test block termination hole, does not destroy at cement plane to guarantee that test block is drawn in the experiment at axle.
(2) regulate universal testing machine chuck height, and, testing machine fixture block 1 is fixed in (upward lower chuck is each one) on the universal testing machine chuck through adjusting the degree of tightness of chuck.
(3) utilize hinged drag hook 2 that testing machine fixture block 1, test block bonding bloom 3 are connected, and in drag hook and hexagonal nut surface of contact coating lubricating oil, to reduce friction between the two, tie point freely rotate under the assurance tension.
(4) the starting characteristics test machine applies pulling force, and this device can be regulated the test block angle automatically, bears axial tension to guarantee test block, until the destruction of test block.Testing machine can be gathered experimental data automatically.
After single experiment finishes, can the adhesive glue that test block bonds on the bloom 3 be ground off, repeating step 1, experimental provision can be re-used in experiment.
Claims (3)
1. a concrete axle draws the experiment anchor clamps; Comprise testing machine fixture block (1), hinged drag hook (2), test block bonding bloom (3); It is characterized in that: said testing machine fixture block (1) is the smooth smooth cylindrical bloom in two ends, wherein a hexagonal nut of end face centre of form place's vertical position welding (4); Hinged drag hook (2) plays the smooth reinforcing bar in crook for two ends; Test block bonding bloom (3) is that two ends are smooth smooth, and the face size square bloom identical with bar shaped test block (5), wherein a hexagonal nut of end face centre of form place's vertical position welding (4); Testing machine fixture block (1) bonds with test block and is connected through hinged drag hook (2) between the bloom (3).
2. concrete axle according to claim 1 draws the experiment anchor clamps, it is characterized in that: said testing machine fixture block (1) is fixed on the universal testing machine chuck.
3. concrete axle according to claim 1 draws the experiment anchor clamps, it is characterized in that: said test block bonding bloom (3) is connected with bar shaped test block (5) with epoxide-resin glue (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214519U CN202133588U (en) | 2011-06-23 | 2011-06-23 | Concrete axial tension testing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214519U CN202133588U (en) | 2011-06-23 | 2011-06-23 | Concrete axial tension testing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133588U true CN202133588U (en) | 2012-02-01 |
Family
ID=45522354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120214519U Expired - Fee Related CN202133588U (en) | 2011-06-23 | 2011-06-23 | Concrete axial tension testing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202133588U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234825A (en) * | 2013-04-12 | 2013-08-07 | 长安大学 | Pavement material direct tensile test apparatus with eccentric tension avoided and method thereof |
| CN104964875A (en) * | 2015-06-08 | 2015-10-07 | 中国建筑第八工程局有限公司 | Testing structure and testing method for interlayer bonding strength of 3D-printed member |
| CN106482994A (en) * | 2016-10-12 | 2017-03-08 | 中国水利水电科学研究院 | Concrete axial draws test specimen method of attachment |
| 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 |
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN109406270A (en) * | 2018-10-08 | 2019-03-01 | 上海海洋大学 | The device and its test method of the non-homogeneous multi-direction tensile strength test of eva foam |
| CN109470578A (en) * | 2018-12-28 | 2019-03-15 | 内蒙古工业大学 | A kind of regulation low temperature environment testing apparatus and test method |
| CN109632491A (en) * | 2019-01-24 | 2019-04-16 | 湖南科技大学 | It is a kind of for testing the device and its application method of test specimen tensile strength |
| CN110220791A (en) * | 2019-05-30 | 2019-09-10 | 浙江工业大学 | A kind of cylindrical concrete component axial direction tensile test apparatus |
-
2011
- 2011-06-23 CN CN201120214519U patent/CN202133588U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234825A (en) * | 2013-04-12 | 2013-08-07 | 长安大学 | Pavement material direct tensile test apparatus with eccentric tension avoided and method thereof |
| CN103234825B (en) * | 2013-04-12 | 2016-04-13 | 长安大学 | Avoid the ground surface material direct tensile test devices and methods therefor of eccentric tension |
| CN104964875A (en) * | 2015-06-08 | 2015-10-07 | 中国建筑第八工程局有限公司 | Testing structure and testing method for interlayer bonding strength of 3D-printed member |
| CN104964875B (en) * | 2015-06-08 | 2017-09-29 | 中国建筑第八工程局有限公司 | The test structure and method of testing of 3D printing component bond strength between layers |
| CN106482994A (en) * | 2016-10-12 | 2017-03-08 | 中国水利水电科学研究院 | Concrete axial draws test specimen method of attachment |
| 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 |
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN109406270A (en) * | 2018-10-08 | 2019-03-01 | 上海海洋大学 | The device and its test method of the non-homogeneous multi-direction tensile strength test of eva foam |
| CN109470578A (en) * | 2018-12-28 | 2019-03-15 | 内蒙古工业大学 | A kind of regulation low temperature environment testing apparatus and test method |
| CN109470578B (en) * | 2018-12-28 | 2024-02-27 | 内蒙古工业大学 | Test device and test method for regulating low-temperature environment |
| CN109632491A (en) * | 2019-01-24 | 2019-04-16 | 湖南科技大学 | It is a kind of for testing the device and its application method of test specimen tensile strength |
| CN110220791A (en) * | 2019-05-30 | 2019-09-10 | 浙江工业大学 | A kind of cylindrical concrete component axial direction tensile test apparatus |
| CN110220791B (en) * | 2019-05-30 | 2024-03-22 | 浙江工业大学 | Axial tensile test device for cylindrical concrete member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202133588U (en) | Concrete axial tension testing clamp | |
| CN106525717B (en) | Consider the FRP tendons bias pull-out test device and method of curved scissors stress influence | |
| CN101851985B (en) | Articulated anchor and prestress tensioning method of high strength fibre composite sheet | |
| CN206591448U (en) | Novel bridge widens bracing means | |
| CN102425311B (en) | Concrete structure reinforcing method based on near surface mounted prestressed FRP (Fiber Reinforced Polymer) | |
| CN103983525A (en) | Testing device and method for testing fiber reinforce plastic (FRP)-concrete single shear performance | |
| CN102928287B (en) | Tensile clamp for tensile property test of non-metal materials | |
| CN204491425U (en) | A kind of external prestressing strengthening structure of T-shaped bridge diaphragm | |
| CN102261166A (en) | Fiber reinforced polymer (FRP) sheet anchor device and anchoring method thereof | |
| CN105888277A (en) | Pre-stressing carbon fiber cloth reinforcement reinforced concrete column construction method | |
| CN202064523U (en) | Self-steering prestressed sheet clamping and stretching anchorage device | |
| CN108760495A (en) | The two-way tension adhesion test device of weak separation muscle material and test method | |
| CN107268459B (en) | Construction method for prestressed fiber cloth reinforced concrete pier column | |
| CN102323157B (en) | Concrete multi-shaft tension compression stress combination testing method | |
| CN202582993U (en) | Bonding auxiliary clamping tool for detecting tension and compression performance of composite material laminated thick plate | |
| CN109444030A (en) | FRP plate material/sheet material the corrosion testing apparatus and method of self-correction prestressing force angle | |
| CN203007855U (en) | Stretch-draw anchoring system of pre-stress fiber composite plate | |
| CN205955228U (en) | Prestressing force stretch -draw and anchor of carbon cloth | |
| CN204475190U (en) | A kind of low retraction ground tackle tensioning equipment | |
| CN103850175A (en) | Prestress tension and anchor device for aramid fiber cloth sheets | |
| CN113404303B (en) | Quick prestressed beam tensioning structure and construction method thereof | |
| CN207092104U (en) | A kind of steel-pipe pile attachment structure | |
| CN208043551U (en) | Adhesive stretches shear strength test attachment device | |
| CN204188461U (en) | A kind of screw measurer for pulling force | |
| CN110565547B (en) | Inclined leg steel bridge supporting and jacking reinforcing device and method |
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: 20120201 Termination date: 20120623 |