CN207318214U - A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length - Google Patents
A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length Download PDFInfo
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- CN207318214U CN207318214U CN201621337547.1U CN201621337547U CN207318214U CN 207318214 U CN207318214 U CN 207318214U CN 201621337547 U CN201621337547 U CN 201621337547U CN 207318214 U CN207318214 U CN 207318214U
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Abstract
It the utility model is related to a kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length.Test device described in the utility model includes reinforcing bar, sleeve, upper and lower two U-shaped frames that can be fixed on reinforcing bar and extensometer, upper U-shaped frame is divided into symmetrical two parts, it can be fixed on by two set screws on reinforcing bar, two screw holes are respectively left in upper U-shaped frame bottom, are connected by screw with extensometer；Lower U-shaped frame is also classified into symmetrical two parts, it can be fixed on by two screws on reinforcing bar, lower two cross bar of U-shaped frame can move up and down in interior side chute, and end uses set screw fixed transverse rod, two screw holes are respectively left at the top of lower U-shaped frame, are connected by screw with extensometer.Test device described in the utility model can realize that extensometer consolidates in test process, it ensure that test result effectively, reliably, and left and right ends respectively connect an extensometer, make two extensometer change in displacement consistent by slightly loading before testing, it is ensured that measurement bay installs abswolute level.
Description
Technical field
It the utility model is related to a kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length.
Background technology
Prefabricated concrete structure is to be mixed by precast concrete by what various reliable connection modes were assembled
Xtah Crude Clay structure, compared with traditional construction mode, the product such as its inside and outside wall board carries out industrialization production in factory, and construction site is adopted
With mechanical erection, be greatly reduced the labor intensity and number of workers of field worker, and climate factor influence it is smaller, can be big
Width improves speed of application, shortens the construction period.
Reinforced bar sleeve grouting connection is a kind of new reinforcing steel bar connection side developed and produced by engineering practice needs and technology
Formula, the appearance of the connection mode compensate for the deficiency of traditional bar connecting mode (weld and be bolted).Reinforced bar sleeve fills
It is different to starch jointing product form, connects complicated mechanism, switching performance is influenced be subject to product parameters, and correlative study is seriously stagnant
Afterwards, especially reinforced bar sleeve grouting jointing deformation performance.
Reinforced bar sleeve grouting jointing deformation performance measurement gauge length is L+4d (L is length sleeve, and d is bar diameter),
The building of different structure is differed with sleeve and rebar sizes, and it is obvious that it measures gauge length difference.Sleeve grouting jointing
Deformation performance is generally tested using extensometer, but the gauge length of conventional extensometer is definite value, and lacks corresponding fixing device.
Patent CN201285275Y discloses a kind of overstrain test device of reinforced bar mechanical connector type inspection,
Measurement bay includes the U-shaped frame of upper and lower two same fixed steel bars, and having between the two-arm end of U-shaped frame can be in the two-arm of U-shaped frame body
The lateral connection block inside moved up and down, extensometer is installed on the edge of a knife of upper and lower gauge length screw rod end, but does not point out extensometer
By which kind of mode be installed on upper and lower gauge length screw rod end the edge of a knife on, if be only with edge of a knife nib contacts, by the edge of a knife apply one
Constant-pressure is fixed, then extensometer can not necessarily keep complete stability during load test, will seriously affect test knot
Fruit, particularly when straining the tension and compression test repeatedly of tension and compression repeatedly and high stress greatly, test error will accumulate, and overstrain is surveyed
Examination is high to required precision, such as centering simple tension overstrain requirement≤0.1mm (bar diameter d≤32mm), and experiment misses
Difference is possible to exceed actual numerical value；And this device is only capable of one extensometer of installation, it can not ensure abswolute level during measurement bay installation,
Even if extensometer with reinforcing bar is not parallel also can not effectively calibrate, and then can not ensure that extensometer deformation values connect with steel concrete supporting
Head deformation values are consistent, cause result of the test to deviate with actual conditions, when being particularly wall-mounted on screw-thread steel；In addition, U-shaped frame two-arm
It can be moved up and down in interior side chute, design slightly complicated, frame body unstable risk when virtually also increasing test, if
Two-arm upper and lower adjustment position during experiment every time, can not ensure that extensometer position is relatively fixed during each experimental test, certain journey
Test error can be caused on degree.Therefore there is an urgent need for develop a kind of reinforcing bar set for ensureing extensometer level easy to install and firm connection
Cylinder grouting jointing deformation performance test device.
Utility model content
The purpose of this utility model is to be directed to lack effective reinforced bar sleeve grouting jointing deformation performance test at present
The problem of device, propose a kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length, it is ensured that extend
Count installation level and consolidate and be connected in test device.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length, including reinforcing bar, sleeve, extend
Meter, upper and lower two U-shaped frames that can be fixed on reinforcing bar, the upper and lower end of the sleeve are connected with reinforcing bar；The lower U-shaped frame is equipped with
Cross bar and montant, the cross bar are directly connected with montant by the 4th set screw；
The upper U-shaped frame is divided into symmetrical two parts, can be fixed on by two the first set screws on reinforcing bar；On
Two screw holes are respectively left in U-shaped frame bottom, are connected by the second set screw with extensometer；
The lower U-shaped frame is also classified into symmetrical two parts, can be fixed on by two the 5th set screws on reinforcing bar；
The inside of cross bar of lower U-shaped frame is equipped with sliding slot, and the cross bar can move up and down in sliding slot, and end is fixed using the 4th set screw
Cross bar, lower U-shaped frame montant top are respectively left two screw holes, are connected by the 3rd set screw with extensometer.
The adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length, the U-shaped frame material is aluminium.
Beneficial effect：The utility model is connected with extensometer by upper and lower four set screws and realizes extensometer position and consolidate
Fixed, horizontal, extensometer consolidates in test process, while gauge length adjusts, and sleeve left and right ends respectively connect an extensometer,
Make two extensometer deformation values consistent by slightly loading before test, realize measurement bay installation abswolute level, ensure that test
As a result effective, reliable.
Brief description of the drawings
Fig. 1 is the front view of test device described in the utility model.
Fig. 2 is the top view of test device described in the utility model.
Fig. 3 is the bottom view of test device described in the utility model.
Specifically it is labeled as in Fig. 1 to Fig. 3：1.1st, the upper U-shaped frames of 1.2-, 2.1, the first set screws of 2.2-, 3.1,3.3-
Second set screw, 3.2, the 3rd set screws of 3.4-, 4.1,4.2- extensometers, 5.1, U-shaped frame under 5.2-, 5.1.1,
5.2.1- U-shaped frame montant is descended, U-shaped frame cross bar under 5.1.2,5.2.2-, 6.1, the 4th set screws of 6.2-, 7.1,7.2- reinforcing bars,
8- sleeves, 9.1,9.2,9.3, the 5th set screws of 9.4-, 10.1,10.2- sliding slots, 11.1,11.2- screw holes.
Embodiment
If Fig. 1,2,3 are a kind of structure of the adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length
Figure, the test device include reinforcing bar 7.1,7.2, sleeve 8, extensometer 4.1,4.2, the upper U-shaped frame that can be fixed on reinforcing bar
1.1,1.2 and lower U-shaped frame 5.1,5.2, the upper and lower end of the sleeve is connected with reinforcing bar；The lower U-shaped frame 5.1,5.2 is equipped with horizontal stroke
Bar 5.1.2,5.2.2 and montant 5.1.1,5.2.1, the cross bar directly pass through the 4th set screw 6.1,6.2 connections with montant；
The upper U-shaped frame is divided into symmetrical two parts, and steel can be fixed on by two the first set screws 2.1,2.2
On muscle；Two screw holes 11.1 are respectively left in upper U-shaped frame bottom, are connected by the second set screw 3.1,3.3 with extensometer；
The lower U-shaped frame is also classified into symmetrical two parts, can be fixed by two the 4th set screws 6.1,6.2
On reinforcing bar；The inside of cross bar of lower U-shaped frame is equipped with sliding slot 10.1,10.2, and the cross bar can move up and down in sliding slot, and end is adopted
With the 4th set screw 6.1,6.2 fixed transverse rods, two screw holes 11.2 are respectively left at lower U-shaped frame montant top, pass through the 3rd positioning
Screw 3.2,3.4 is connected with extensometer.
The U-shaped frame material of the test device is aluminium.
The step of when test device described in the utility model uses, is as follows：
1. connect 2 reinforcing bars 7.1 and 7.2 with sleeve 8 by Fig. 1, by the 5th set screw 9.1,9.2 by upper U-shaped
Frame 1.1 and 1.2 is locked on reinforcing bar 7.1.
2. extensometer 4.1 is connected to upper U shapes frame by the second set screw 3.1 and the 3rd set screw 3.2
On 1.1 and lower U-shaped frame montant 5.1.1；Extensometer 4.2 is connected respectively by the second set screw 3.3 and the 3rd set screw 3.4
It is connected in U-shaped frame 1.2 and lower U-shaped frame montant 5.2.1.
3. lower U-shaped frame cross bar 5.1.2 is inserted on lower U-shaped frame montant 5.1.1 and is adjusted to designated position, it is fixed by the 4th
Position screw 6.1 locks lower U-shaped frame cross bar 5.1.2 and lower U-shaped frame montant 5.1.1；Lower U shapes frame cross bar 5.2.2 is inserted in lower U
On shape frame montant 5.2.1 and adjust to designated position, by the 4th set screw 6.2 by lower U-shaped frame cross bar 5.2.2 and lower U-shaped
Frame montant 5.2.1 is locked.
4. lower U-shaped frame cross bar 5.1.2 and 5.2.2 are locked on reinforcing bar 7.2 by the 5th set screw 9.3 and 9.4.
Claims (2)
- A kind of 1. adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length, it is characterised in that：Including reinforcing bar (7.1,7.2), sleeve (8), extensometer (4.1,4.2), the upper U-shaped frame (1.1,1.2) that can be fixed on reinforcing bar and lower U-shaped frame (5.1,5.2), the upper and lower end of the sleeve (8) are connected with reinforcing bar；The lower U-shaped frame (5.1,5.2) be equipped with cross bar (5.1.2, 5.2.2) directly connected with montant (5.1.1,5.2.1), the cross bar with montant by the 4th set screw (6.1,6.2)；The upper U-shaped frame (1.1,1.2) is divided into symmetrical two parts, can by two the first set screws (2.1,2.2) It is fixed on reinforcing bar；Two screw holes (11.1) are respectively left in upper U-shaped frame bottom, by the second set screw (3.1,3.3) with extending Count (4.1,4.2) connection；The lower U-shaped frame (5.1,5.2) is also classified into symmetrical two parts, passes through two the 5th set screws (9.3,9.4) It can be fixed on reinforcing bar；The inside of cross bar of lower U-shaped frame is equipped with sliding slot (10.1,10.2), the cross bar can in sliding slot on move down Dynamic, end uses the 4th set screw (6.1,6.2) fixed transverse rod, and two screw holes (11.2) are respectively left at the top of lower U-shaped frame montant, Connected by the 3rd set screw (3.2,3.4) and extensometer (4.1,4.2).
- 2. the adjustable reinforced bar sleeve grouting jointing deformation performance test device of a kind of gauge length according to claim 1, It is characterized in that：The U-shaped frame material is aluminium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337547.1U CN207318214U (en) | 2016-12-08 | 2016-12-08 | A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337547.1U CN207318214U (en) | 2016-12-08 | 2016-12-08 | A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length |
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| CN207318214U true CN207318214U (en) | 2018-05-04 |
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| CN201621337547.1U Active CN207318214U (en) | 2016-12-08 | 2016-12-08 | A kind of adjustable reinforced bar sleeve grouting jointing deformation performance test device of gauge length |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374407A (en) * | 2018-08-23 | 2019-02-22 | 中国二十冶集团有限公司 | Production method for steel concrete supporting sliding test device |
| CN111854674A (en) * | 2020-07-06 | 2020-10-30 | 河海大学 | Extensometer test support with variable distance measurement function |
| CN111879611A (en) * | 2020-07-24 | 2020-11-03 | 武汉科技大学 | Fixing device of extensometer for measuring compression deformation of refractory material |
| CN112013809A (en) * | 2020-08-31 | 2020-12-01 | 山东兖州建设总公司 | Deformation measuring device for grouting connection joint of steel bar sleeve |
| CN112611553A (en) * | 2020-11-30 | 2021-04-06 | 山东省建筑科学研究院有限公司 | In-situ detection device and method for steel bar sleeve connecting piece |
| CN114459415A (en) * | 2021-12-29 | 2022-05-10 | 南京航空航天大学 | Device and method for measuring rotation angle of spherical joint |
-
2016
- 2016-12-08 CN CN201621337547.1U patent/CN207318214U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374407A (en) * | 2018-08-23 | 2019-02-22 | 中国二十冶集团有限公司 | Production method for steel concrete supporting sliding test device |
| CN111854674A (en) * | 2020-07-06 | 2020-10-30 | 河海大学 | Extensometer test support with variable distance measurement function |
| CN111879611A (en) * | 2020-07-24 | 2020-11-03 | 武汉科技大学 | Fixing device of extensometer for measuring compression deformation of refractory material |
| CN112013809A (en) * | 2020-08-31 | 2020-12-01 | 山东兖州建设总公司 | Deformation measuring device for grouting connection joint of steel bar sleeve |
| CN112611553A (en) * | 2020-11-30 | 2021-04-06 | 山东省建筑科学研究院有限公司 | In-situ detection device and method for steel bar sleeve connecting piece |
| CN112611553B (en) * | 2020-11-30 | 2022-08-26 | 山东省建筑科学研究院有限公司 | In-situ detection device and method for steel bar sleeve connecting piece |
| CN114459415A (en) * | 2021-12-29 | 2022-05-10 | 南京航空航天大学 | Device and method for measuring rotation angle of spherical joint |
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