CN109612824A - A kind of easy positioning mold for reinforcing bar pull-out test - Google Patents
A kind of easy positioning mold for reinforcing bar pull-out test Download PDFInfo
- Publication number
- CN109612824A CN109612824A CN201811468412.2A CN201811468412A CN109612824A CN 109612824 A CN109612824 A CN 109612824A CN 201811468412 A CN201811468412 A CN 201811468412A CN 109612824 A CN109612824 A CN 109612824A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- locating cover
- bolt
- locating
- out test
- 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.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 31
- 238000007586 pull-out test Methods 0.000 title claims abstract description 22
- 239000004567 concrete Substances 0.000 claims abstract description 45
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of easy positioning molds for reinforcing bar pull-out test, including pedestal, the upper end of the pedestal is slidably installed by two sliding blocks, and there are two locating covers, two locating covers are fixedly connected by corner brace, the upper end of the locating cover offers half slot, reinforcing bar is provided on the inside of the half slot, concrete block is provided on the inside of the locating cover, the first thread bush is fixedly installed on the inside of the mounting hole, the first bolt is rotatably equipped on the inside of first thread bush, the end of first bolt is provided with rubber pad, pressing plate is provided on the inside of the locating cover, the pressing plate is slidably connected by gag lever post and locating cover, connector sleeve is fixedly installed in the middle part of the pressing plate, the connector sleeve and the second bolt are rotatablely connected, second bolt is set to the inside of the second thread bush.The positioning mold can easily be fixed concrete block, and prevent concrete in the internal activity of locating cover, influence reinforcing bar pull-out test.
Description
Technical field
The invention belongs to reinforcing bar pull-out test technical fields, and in particular to a kind of simplicity positioning for reinforcing bar pull-out test
Mold.
Background technique
Fatigue load makes Rc Structure Bond performance occur to degenerate and then component ultimate bearing capacity is caused to decline, hair
Raw brittle break.Consider influence of the Fatigue Load to bond-slip properties degeneration in reinforced concrete structure to existing structure
Bearing capacity calculation and analyze it is extremely important.Reinforcing bar pull-out test is the main method for studying armored concrete adhesive property.Steel
The bond-slip properties of reinforced concrete are the basic mechanical performances of concrete, for armored concrete adhesive property, can be passed through
The test method of heart drawing measures, and needs to fix concrete block by positioning mold during test, redrawing reinforcing bar is same
Shi Jilu data.
Positioning mold in use at present is only by the upper end of concrete block fixing sleeve pedestal, and there is no to solidifying soil block
Operation is fixed, during the drawing process, be easy to cause concrete block in the activity of the inside of locating cover, to influence drawing
The test data for pulling out test reduces the accuracy of test, so needing to design a kind of novel simplicity for reinforcing bar pull-out test
Positioning mold comes into operation.
Summary of the invention
The purpose of the present invention is to provide a kind of easy positioning molds for reinforcing bar pull-out test to come into operation, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of simplicity positioning for reinforcing bar pull-out test
The upper end of mold, including pedestal, the pedestal is slidably installed by two sliding blocks there are two locating cover, and two locating covers are logical
It crosses corner brace to be fixedly connected, the upper end of the locating cover offers half slot, and reinforcing bar is provided on the inside of the half slot, described fixed
The inside of position cover is provided with concrete block, and the side of the locating cover offers mounting hole, the fixed peace in the inside of the mounting hole
Equipped with the first thread bush, the first bolt, the end setting of first bolt are rotatably equipped on the inside of first thread bush
There is rubber pad, pressing plate is provided on the inside of the locating cover, the pressing plate is slidably connected by gag lever post and locating cover, the pressure
Connector sleeve is fixedly installed in the middle part of plate, the connector sleeve and the second bolt are rotatablely connected, and second bolt is set to second
The inside of thread bush.
Preferably, the upper end of two locating covers is welded with corner brace, and two corner braces connect by the way that fastening bolt is fixed
It connects.
Preferably, the lower end of the locating cover is fixedly installed with sliding block, and the sliding block is slidably mounted on the inside of sliding slot, and
Sliding slot is opened in the inside of pedestal.
Preferably, the front and rear sides of each locating cover are opened up there are four limit hole, the inside of four limit holes
It is slidably fitted with gag lever post, and four gag lever posts are fixedly installed in the side of pressing plate.
Preferably, second limit sleeve is fixedly installed in the middle part of locating cover front-rear side walls, second thread bush with
The connection of second bolt thread, and the second bolt is rotatablely installed by connector sleeve in the middle part of pressing plate side.
Preferably, the lower part of the reinforcing bar is fixedly installed in the inside of concrete block, and the top of the reinforcing bar is set to two
The inside of two half slots of a locating cover upper end, and rubber gasket is provided between the upper end and locating cover of concrete block.
Technical effect and advantage of the invention: this is used for the easy positioning mold of reinforcing bar pull-out test, will by fixed cover
The upper end of concrete block, which is pushed down, prevents concrete block up and down, and drives rubber by the first bolt and the cooperation of the first thread bush
Pad resists the left and right sides of concrete block, while being carried out by the second bolt and the second bolt sleeve mating band dynamic pressure plate to concrete
Clamping carries out thorough fixed operation comprehensively to concrete block, effectively avoids concrete block in the activity of the inside of locating cover, thus
Avoid influencing the test data of pull-out test.
Detailed description of the invention
Fig. 1 is real work schematic diagram of the invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of locating cover；
Fig. 4 is the connection schematic diagram of locating cover and pedestal.
In figure: 1 pedestal, 2 locating covers, 3 first bolts, 4 first thread bush, 5 rubber pads, 6 reinforcing bars, 7 concrete blocks, 8 glue
Leather packing piece, 9 gag lever posts, 10 pressing plates, 11 connector sleeves, 12 second bolts, 13 limit holes, 14 second thread bush, 15 second bolts, 16
Corner brace, 17 fastening bolts, 18 sliding slots, 19 half slots, 20 sliding blocks, 21 mounting holes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of easy positioning molds for reinforcing bar pull-out test as shown in Figs 1-4, including pedestal
1, the upper end of the pedestal 1 is slidably installed by two sliding blocks 20 there are two locating cover 2, and two locating covers 2 pass through corner brace
16 are fixedly connected, and the upper end of the locating cover 2 offers half slot 19, and the inside of the half slot 19 is provided with reinforcing bar 6, described
The inside of locating cover 2 is provided with concrete block 7, and the side of the locating cover 2 offers mounting hole 21, the mounting hole 21 it is interior
Side is fixedly installed with the first thread bush 4, and the inside of first thread bush 4 is rotatably equipped with the first bolt 3, first bolt
3 end is provided with rubber pad 5, and the inside of the locating cover 2 is provided with pressing plate 10, and the pressing plate 10 is by gag lever post 9 and determines
Position cover 2 is slidably connected, and the middle part of the pressing plate 10 is fixedly installed with connector sleeve 11, and the connector sleeve 11 and the second bolt 12 rotate
Connection, second bolt 12 are set to the inside of the second thread bush 14.
Specifically, the upper end of two locating covers 2 is welded with corner brace 16, and two corner braces 16 pass through fastening bolt 17
It is fixedly connected, after concrete block 7 is placed into locating cover 2, is cooperated by corner brace 16 and fastening bolt 17 by two locating covers 2
It is secured together, the upper end of concrete block 7, which is pushed down, prevents concrete block 7 up and down.
Specifically, the lower end of the locating cover 2 is fixedly installed with sliding block 20, the sliding block 20 is slidably mounted on sliding slot 18
Inside, and sliding slot 18 is opened in the inside of pedestal 1, and after concrete block 7 is placed on pedestal 1, two locating covers 2 are passed through
Sliding block 20 and sliding slot 18 cooperate to be slided to middle part, so that concrete block 7 to be arranged to the inside of locating cover 2.
Specifically, the front and rear sides of each locating cover 2 are opened up there are four limit hole 13, four limit holes 13
Inside is slidably fitted with gag lever post 9, and four gag lever posts 9 are fixedly installed in the side of pressing plate 10, guarantees that pressing plate 10 passes through
Smooth sliding is stablized to push down the front and back sides of concrete block 7 in the inside for being supported on locating cover 2 of four gag lever posts 9, keeps away
It is excused from an examination 7 fore-aft travel of concrete block during testing.
Specifically, second limit sleeve 14 is fixedly installed in the middle part of 2 front-rear side walls of locating cover, second thread bush
14 are threadedly coupled with the second bolt 15, and the second bolt 15 is rotatablely installed by connector sleeve 11 in the middle part of 10 side of pressing plate, is led to
The second bolt 15 of rotation is crossed, by being threadedly engaged for the second bolt 15 and the second thread bush 14, the second bolt 15 is to locating cover 2
Medial movement, the second bolt 15 is close to concrete block 7 with dynamic pressure plate 10 by connector sleeve 11, clamps to concrete block 7.
Specifically, the lower part of the reinforcing bar 6 is fixedly installed in the inside of concrete block 7, the top of the reinforcing bar 6 is set to
The inside of two half slots 19 of two 2 upper ends of locating cover, and rubber is provided between the upper end of concrete block 7 and locating cover 2
Concrete block 7 is arranged to the inside of two locating covers 2 by gasket 8, and reinforcing bar 6 is pierced by from the inside of two half slots 19, convenient
The progress of pull-out test, while buffering is provided between concrete block 7 and locating cover 2 by rubber sheet gasket 8, prevent concrete block
7 squeeze breakage with locating cover 2, to influence pull-out test in the inside generation activity of locating cover 2.
Working principle: after concrete block 7 is placed on pedestal 1, two locating covers 2 are passed through into sliding block 20 and sliding slot 18
Cooperate and slided to middle part, so that concrete block 7 to be arranged to the inside of locating cover 2, and reinforcing bar 6 is from the inside of two half slots 19
It is pierced by, facilitates the progress of pull-out test, be secured together two locating covers 2 by corner brace 16 and the cooperation of fastening bolt 17, it will
The upper end of concrete block 7, which is pushed down, prevents concrete block 7 up and down, is matched by the first bolt and the first screw thread external threading of two sides
It closes to drive rubber pad close to concrete block, to clamping at left and right sides of concrete block, then rotates the second bolt
15, by being threadedly engaged for the second bolt 15 and the second thread bush 14, medial movement from the second bolt 15 to locating cover 2, second
Bolt 15 is close to concrete block 7 with dynamic pressure plate 10 by connector sleeve 11, carries out front and back clamping to concrete block 7, completes coagulation
The fixed operation of soil block 7.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of easy positioning mold for reinforcing bar pull-out test, including pedestal (1), it is characterised in that: the pedestal (1)
Upper end is slidably installed by two sliding blocks (20) there are two locating cover (2), and two locating covers (2) are fixed by corner brace (16)
Connection, the upper end of the locating cover (2) offer half slot (19), are provided with reinforcing bar (6), institute on the inside of the half slot (19)
It states and is provided on the inside of locating cover (2) concrete block (7), the side of the locating cover (2) offers mounting hole (21), the peace
It is fixedly installed with the first thread bush (4) on the inside of dress hole (21), is rotatably equipped with the first spiral shell on the inside of first thread bush (4)
The end of bolt (3), first bolt (3) is provided with rubber pad (5), is provided with pressing plate (10) on the inside of the locating cover (2),
The pressing plate (10) is slidably connected by gag lever post (9) with locating cover (2), is fixedly installed with connection in the middle part of the pressing plate (10)
It covers (11), the connector sleeve (11) and the second bolt (12) are rotatablely connected, and second bolt (12) is set to the second thread bush
(14) inside.
2. a kind of easy positioning mold for reinforcing bar pull-out test according to claim 1, it is characterised in that: two institutes
The upper end for stating locating cover (2) is welded with corner brace (16), and two corner braces (16) are fixedly connected by fastening bolt (17).
3. a kind of easy positioning mold for reinforcing bar pull-out test according to claim 1, it is characterised in that: described fixed
The lower end of position cover (2) is fixedly installed with sliding block (20), and the sliding block (20) is slidably mounted on the inside of sliding slot (18), and sliding slot
(18) it is opened in the inside of pedestal (1).
4. a kind of easy positioning mold for reinforcing bar pull-out test according to claim 1, it is characterised in that: Mei Gesuo
The front and rear sides for stating locating cover (2) are opened up there are four limit hole (13), and the inside of four limit holes (13) is slidably installed
Have gag lever post (9), and four gag lever posts (9) are fixedly installed in the side of pressing plate (10).
5. a kind of easy positioning mold for reinforcing bar pull-out test according to claim 1, it is characterised in that: described
Two limit sleeves (14) are fixedly installed in the middle part of locating cover (2) front-rear side walls, second thread bush (14) and the second bolt
(15) it is threadedly coupled, and the second bolt (15) is rotatablely installed by connector sleeve (11) in the middle part of pressing plate (10) side.
6. a kind of easy positioning mold for reinforcing bar pull-out test according to claim 1, it is characterised in that: the steel
The lower part of muscle (6) is fixedly installed in the inside of concrete block (7), and the top of the reinforcing bar (6) is set on two locating covers (2)
The inside of two half slots (19) at end, and rubber gasket (8) are provided between the upper end of concrete block (7) and locating cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811468412.2A CN109612824B (en) | 2018-12-03 | 2018-12-03 | Simple and convenient positioning die for steel bar drawing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811468412.2A CN109612824B (en) | 2018-12-03 | 2018-12-03 | Simple and convenient positioning die for steel bar drawing test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109612824A true CN109612824A (en) | 2019-04-12 |
| CN109612824B CN109612824B (en) | 2021-02-19 |
Family
ID=66006732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811468412.2A Active CN109612824B (en) | 2018-12-03 | 2018-12-03 | Simple and convenient positioning die for steel bar drawing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109612824B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150119523A (en) * | 2014-04-15 | 2015-10-26 | 건국대학교 산학협력단 | Concrete tensile creep tester and it's method |
| CN204988889U (en) * | 2015-08-06 | 2016-01-20 | 广东工业大学 | Laboratory multifunctional soil test device |
| CN105547849A (en) * | 2016-03-01 | 2016-05-04 | 安徽理工大学 | True triaxial loading and unloading test device for large-size bedded pressure-bearing rock and testing method |
| CN107036901A (en) * | 2017-04-28 | 2017-08-11 | 武汉大学 | A kind of monofilament pull-out test device for applying lateral pressure |
| CN206876475U (en) * | 2017-06-22 | 2018-01-12 | 深圳市国银建设工程项目管理有限公司 | A kind of auxiliary locator of reisilometer |
| CN206891940U (en) * | 2017-07-24 | 2018-01-16 | 湖南大学 | A kind of reinforcing bar and concrete drawing experimental rig for eliminating high temperature influence |
| CN206990342U (en) * | 2017-03-22 | 2018-02-09 | 中国建筑股份有限公司 | A kind of pull-out test device |
| CN207215542U (en) * | 2017-09-01 | 2018-04-10 | 四川泰兴建设管理有限责任公司 | A kind of concrete test die |
| CN207318228U (en) * | 2017-10-26 | 2018-05-04 | 吉林建筑大学 | A kind of steel fibre drawing test piece fixing device from concrete |
| CN207586009U (en) * | 2017-12-25 | 2018-07-06 | 宣城职业技术学院 | A kind of use for laboratory prestressed reinforced concrete tests movable fixture |
| CN108562488A (en) * | 2017-12-27 | 2018-09-21 | 内蒙古工业大学 | The device and operating method of single fiber puller system fixing concrete sample |
| CN207946287U (en) * | 2018-04-09 | 2018-10-09 | 郑州大学 | The center of reinforcing bar and eccentric location device in armored concrete pull-out test |
-
2018
- 2018-12-03 CN CN201811468412.2A patent/CN109612824B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150119523A (en) * | 2014-04-15 | 2015-10-26 | 건국대학교 산학협력단 | Concrete tensile creep tester and it's method |
| CN204988889U (en) * | 2015-08-06 | 2016-01-20 | 广东工业大学 | Laboratory multifunctional soil test device |
| CN105547849A (en) * | 2016-03-01 | 2016-05-04 | 安徽理工大学 | True triaxial loading and unloading test device for large-size bedded pressure-bearing rock and testing method |
| CN206990342U (en) * | 2017-03-22 | 2018-02-09 | 中国建筑股份有限公司 | A kind of pull-out test device |
| CN107036901A (en) * | 2017-04-28 | 2017-08-11 | 武汉大学 | A kind of monofilament pull-out test device for applying lateral pressure |
| CN206876475U (en) * | 2017-06-22 | 2018-01-12 | 深圳市国银建设工程项目管理有限公司 | A kind of auxiliary locator of reisilometer |
| CN206891940U (en) * | 2017-07-24 | 2018-01-16 | 湖南大学 | A kind of reinforcing bar and concrete drawing experimental rig for eliminating high temperature influence |
| CN207215542U (en) * | 2017-09-01 | 2018-04-10 | 四川泰兴建设管理有限责任公司 | A kind of concrete test die |
| CN207318228U (en) * | 2017-10-26 | 2018-05-04 | 吉林建筑大学 | A kind of steel fibre drawing test piece fixing device from concrete |
| CN207586009U (en) * | 2017-12-25 | 2018-07-06 | 宣城职业技术学院 | A kind of use for laboratory prestressed reinforced concrete tests movable fixture |
| CN108562488A (en) * | 2017-12-27 | 2018-09-21 | 内蒙古工业大学 | The device and operating method of single fiber puller system fixing concrete sample |
| CN207946287U (en) * | 2018-04-09 | 2018-10-09 | 郑州大学 | The center of reinforcing bar and eccentric location device in armored concrete pull-out test |
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| Publication number | Publication date |
|---|---|
| CN109612824B (en) | 2021-02-19 |
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