CN207816740U - A kind of experimental provision for studying FRP- concrete interface adhesive properties - Google Patents
A kind of experimental provision for studying FRP- concrete interface adhesive properties Download PDFInfo
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- CN207816740U CN207816740U CN201820159906.1U CN201820159906U CN207816740U CN 207816740 U CN207816740 U CN 207816740U CN 201820159906 U CN201820159906 U CN 201820159906U CN 207816740 U CN207816740 U CN 207816740U
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- grip block
- frp
- simple shear
- studdle
- connecting plate
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Abstract
The utility model is related to a kind of experimental provisions for studying FRP concrete interface adhesive properties, experimental provision includes simple shear grip block, is just drawing grip block, pedestal connecting plate, simple shear grip block is just drawing grip block, pedestal connecting plate to be connected by studdle, through-hole is opened up among the simple shear grip block, and locating piece is set on simple shear grip block；Through-hole is opened up among the positive drawing grip block；Studdle is equipped with location nut.The utility model can not only effectively realize the research of FRP concrete interface adhesive properties, and can fix test specimen, realize vertical center load, simple in structure, easy to operate.
Description
Technical field
The utility model is related to FRP reinforced concrete structures field, be particularly suitable for FRP and concrete interface simple shear and
It is positive to draw performance test.
Background technology
With the development of society, more and more concrete structures have entered aging period, a large amount of concrete knot
Structure is faced with various external loads effects and durability damages, such as earthquake, wind load, carbonization, Frozen-thawed cycled, chloride erosion, does
Wet cycle, high temperature ultraviolet beta radiation etc., result in the actual life of concrete structure well below design period, repair thus
Compound Xtah Crude Clay structure and put into a large amount of human and material resources resource.
The common reinforcement means of concrete structure, which has, to be increased interface, pasting boards and pastes FRP etc., wherein FRP increases for fiber
Strong composite material (abbreviation of Fiber Reinforced Polymer/Plastic), existing CFRP, GFRP, AFRP, BFRP etc.,
FRP composite materials are the high-performance proximate matter material formed after being mixed according to a certain percentage with basis material (resin) by fibrous material,
Light and hard, non-conductive, high mechanical strength recycles less, corrosion-resistant；FRP sheet materials reinforcement technique since its consolidation effect is good,
Hardly increase additional weight characteristic and be used widely, but FRP sheet materials be by adhesive reinforced concrete structure,
And since the flexibility of FRP sheet materials determines that its main reinforcing mode when reinforcing is Shear Strengthening, to FRP and coagulation
The shear behavior research significance of interfacial adhesion is great between soil；Simultaneously in some circumstances FRP sheet materials and concrete binding by just
The effect of pulling force can carry out just experiment being drawn to obtain its mechanical property by bonding bloom on the surfaces FRP thus.
Common FRP sheet materials include simple shear experiment, double-shear experiment, camber beam experiment with concrete interface experiment on Shearing Resistance
Deng, wherein double-shear experiment due to both sides concrete surface difference it is larger, easily cause larger test error, and FRP in camber beam experiment
The stress of sheet material is complex.Simple shear experiment can meet experiment since it is directly to the characteristic for stretching single side FRP sheet materials
It is required that but simple shear experiment loading procedure in test specimen vertical center it is more demanding, therefore research and develop one kind can fix test specimen, realize
The experimental rig of vertical center load is very necessary.
It is proposed in the patent of publication number CN105181589A a kind of for studying the experiment of FRP- concrete binding interface shearings
Device, which carries out shearing experiment in such a way that upper and lower bottom plate clamps test specimen, but there is the device experiment initial stage to need people
Fixture is easy to fall when work helps steady, test specimen to destroy, and can only carry out the characteristic of shearing experiment, thus the safe operation tested and
It is restricted in terms of content of the test.
Invention content
The problem of the utility model exists for the above-mentioned prior art makes improvement, i.e., skill to be solved in the utility model
Art problem is to provide a kind of experimental provision for studying FRP- concrete interface adhesive properties, can not only effectively realize FRP-
The research of concrete interface adhesive property, and test specimen can be fixed, realize vertical center load, it is simple in structure, it is easy to operate.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：It is viscous for studying FRP- concrete interfaces
The experimental provision of knot performance includes simple shear grip block, grip block, pedestal connecting plate, simple shear grip block is just being drawn just to draw grip block, bottom
Seat connecting plate is connected by studdle, through-hole is opened up among the simple shear grip block, and positioning is arranged on simple shear grip block
Part；Through-hole is opened up among the positive drawing grip block；Studdle is equipped with location nut.
Further, simple shear grip block is located at positive draw below grip block during FRP- concrete simple shear test；FRP- is mixed
It is positive during the solidifying positive drawing experiment of soil that grip block is drawn to be located at simple shear grip block lower section.
Further, further include electronic universal tester, the workbench in electronic universal tester is arranged in pedestal connecting plate
On face.
Further, studdle locating sleeve is set on the pedestal connecting plate, is assembled in studdle locating sleeve
Studdle.
Further, strip-shaped hole is opened up in the middle part of simple shear grip block, and the quadrangle of strip-shaped hole carries out round receipts angle；It is positive to draw folder
It holds and opens up square hole in the middle part of plate, and the quadrangle of square hole carries out round receipts angle；Simple shear grip block is just drawing grip block, pedestal to connect
Fishplate bar is steel plate；Studdle locating sleeve is welded on pedestal connecting plate；Pedestal connecting plate is two pieces, and each piece of pedestal connects
Two studdle locating sleeves are set on fishplate bar, and studdle is four.
Further, it is two that the location nut of the grip block of lower part is supported on each studdle, limits the folder of lower part
The location nut for holding plate is one, and it is one to support the location nut of the grip block on top, limits the positioning of the grip block on top
Nut is one.
Further, when simple shear test, simple shear test specimen, simple shear test specimen side is arranged in positive draw between grip block and simple shear grip block
Portion bonds FRP sheet materials.
Further, when positive drawing experiment, it is arranged between simple shear grip block and positive drawing grip block and just draws test specimen, positive drawing test specimen bottom
Portion bonds FRP sheet materials, and connector, the steel that connector includes and the FRP sheet materials of test specimen bottom is just drawn to bond is arranged in FRP sheet materials bottom
Block, bloom, which is threadedly coupled, stretches screw rod, collet garter extension screw rod under electronic universal tester.
Compared with prior art, the utility model has the advantages that：It can not only effectively realize FRP- concrete
The research of interfacial bond property, and test specimen can be fixed, realize vertical center load, it is simple in structure, it is easy to operate.
Description of the drawings
Fig. 1 is the schematic diagram for being applied to the experiment of FRP- concrete simple shears of the utility model embodiment；
Fig. 2 is the schematic diagram for being applied to FRP- concrete and just drawing experiment of the utility model embodiment；
Fig. 3 is the schematic diagram applied to FRP- concrete simple shear experimental work states of the utility model embodiment；
Fig. 4 is the schematic diagram for being applied to FRP- concrete and just drawing experimental work state of the utility model embodiment；
Fig. 5 is the structural schematic diagram of the connector of the utility model embodiment.
In figure：1- just draws grip block；2- simple shear grip blocks；3- pedestal connecting plates；4- studdles；5- location nuts；6-
Locating piece；7- studdle locating sleeves；8- simple shear test specimens；9- just draws test specimen；10- electronic universal testers；11- stretches spiral shell
Bar, 12- blooms, 13-FRP sheet materials.
Specific implementation mode
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
As shown, the experimental provision for studying FRP- concrete interface adhesive properties includes simple shear grip block, positive drawing
Grip block, pedestal connecting plate, simple shear grip block are just drawing grip block, pedestal connecting plate to be connected by studdle, the simple shear folder
It holds and opens up through-hole among plate, and locating piece is set on simple shear grip block；Through-hole is opened up among the positive drawing grip block；Support spiral shell
Bar is equipped with location nut.
Further, simple shear grip block is located at positive draw below grip block during FRP- concrete simple shear test；FRP- is mixed
It is positive during the solidifying positive drawing experiment of soil that grip block is drawn to be located at simple shear grip block lower section.
Further, further include electronic universal tester, the workbench in electronic universal tester is arranged in pedestal connecting plate
On face.
Further, studdle locating sleeve is set on the pedestal connecting plate, is assembled in studdle locating sleeve
Studdle.
Further, strip-shaped hole is opened up in the middle part of simple shear grip block, and the quadrangle of strip-shaped hole carries out round receipts angle；It is positive to draw folder
It holds and opens up square hole in the middle part of plate, and the quadrangle of square hole carries out round receipts angle；Simple shear grip block is just drawing grip block, pedestal to connect
Fishplate bar is steel plate；Studdle locating sleeve is welded on pedestal connecting plate；Pedestal connecting plate is two pieces, and each piece of pedestal connects
Two studdle locating sleeves are set on fishplate bar, and studdle is four；Locating piece is positioning angle steel.
Experimental provision for studying FRP- concrete interface adhesive properties, including simple shear grip block, just drawing grip block, two
Block pedestal connecting plate, four studdles, 20 location nuts；Strip-shaped hole is opened up in the middle part of simple shear grip block, quadrangle is justified
Shape receives angle, and welds locating piece；The quadrangle trepanning of simple shear grip block is put into studdle；Positive draw opens square hole in the middle part of grip block, and four
Angle carries out round receipts angle；It is positive that grip block quadrangle trepanning is drawn to be put into studdle；Each pedestal connecting plate welds two locating sleeves；
Each studdle bottom, which polishes smooth, is put into locating sleeve, portrays screw thread；Location nut size is mutually matched with studdle；
Simple shear grip block is positive to draw grip block upper under when simple shear test；Positive that the when of testing is drawn just to draw grip block under, simple shear grip block exists
On.The device can effectively realize that the simple shear experiment of FRP- concrete interfaces and positive draw are tested, viscous with concrete interface for research FRP
It ties performance and condition is provided.
Locating piece should meet test specimen size requirements；Studdle total length should match with testing machine, studdle diameter
Peak load requirement for bearing capacity should be met, studdle bottom, which enters pedestal connecting plate casing distance, should meet stability requirement,
The top reach of studdle should meet minimum altitude requirement；Two casing height of pedestal connecting plate, wall thickness should meet
Stability requirement, and should should also meet requirement for bearing capacity with bottom plate firm welding, bottom plate thickness；Nut should be with studdle
Matching, and thickness should meet requirement for bearing capacity.
When utility model device is tested for FRP- concrete simple shears：
Prepare simple shear test specimen, simple shear test specimen side bonds FRP sheet materials；As shown in figure 3, two studdles 4 are put into bottom
In the studdle locating sleeve 7 of seat connecting plate 3, then the entirety of formation is lifted and is put to 10 work top of electronic universal tester
On, two studdles 4 and pedestal connecting plate 3 of the other side take same method lift to put to work top.It is tried according to simple shear
8 size of part, every studdle 4 are screwed into two groups of 2 lower part location nuts 5 of simple shear grip block to suitable position, are put into simple shear first
Grip block 2, the locating piece on simple shear grip block upward, then are screwed into one group of 2 top location nut 5 of simple shear grip block, use level
Instrument keeps simple shear grip block 2 horizontal.Being screwed into one group later is just drawing 1 time location nut of grip block 5 to suitable position, is put into positive draw and presss from both sides
Plate 1 is held, then is screwed into one group and is just drawing location nut 5 on grip block 1.It is put into simple shear test specimen 8, so that test specimen is coincide with locating piece 6, simple shear
The FRP sheet materials that test specimen side bonds are with 10 times collets of electronic universal tester to just placed in the middle.Then top is just being drawn grip block 1 to
Under be displaced to the top of simple shear test specimen 8, and be clamped using location nut 5.When starting experiment, collet under electronic universal tester
It clamps the FRP sheet materials that simple shear test specimen side bonds and moves down, FRP sheet materials are sheared with concrete surface in final test specimen
Stripping damage, to obtain simple shear test specimen ultimate bearing capacity etc..
When utility model device is just drawing experiment for FRP- concrete：
Prepare positive drawing test specimen, positive to draw test specimen bottom adhesive FRP sheet materials, FRP sheet materials bottom that connector is arranged, connector includes
With the positive bloom for drawing the FRP sheet materials of test specimen bottom to bond, bloom is threadedly coupled and stretches screw rod；As shown in figure 4, supporting spiral shell by two
Bar 4 is put into the studdle locating sleeve 7 of pedestal connecting plate 3, then the whole lift of formation is put to electronic universal tester 10
On work top, two studdles 4 and pedestal connecting plate 3 of the other side take same method lift to put to work top.Root
9 size of test specimen is drawn according to positive, every studdle 4 is screwed into two groups and is just drawing 1 lower part location nut 5 of grip block to suitable position first,
It is put into positive drawing grip block 1, then is screwed into one group and is just drawing 1 top location nut 5 of grip block, uses spirit level to keep positive and draws grip block 1
It is horizontal.It is screwed into one group of simple shear grip block, 2 times location nuts 5 later to suitable position, is put into simple shear grip block 2, simple shear grip block
On locating piece downward, then be screwed into location nut 5 on one group of simple shear grip block 2.It is put into positive drawing test specimen 9, makes just to draw below test specimen
The lower collet for stretching screw rod and electronic universal tester of connector is to just placed in the middle.Then by top simple shear grip block 2 to moving down
9 top of test specimen is drawn in position to positive, and is clamped using location nut 5.When starting experiment, collet clamps under electronic universal tester
It stretches screw rod 11 and moves down, with concrete surface positive tensile failure occurs for FRP sheet materials in final test specimen, to obtain just
Draw the positive adhesion strength etc. of FRP sheet materials and concrete in test specimen.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (8)
1. a kind of experimental provision for studying FRP- concrete interface adhesive properties, it is characterised in that：Including simple shear grip block,
It is positive to draw grip block, pedestal connecting plate, simple shear grip block that grip block, pedestal connecting plate is just being drawn to be connected by studdle, the list
It cuts and opens up through-hole among grip block, and locating piece is set on simple shear grip block；Through-hole is opened up among the positive drawing grip block；Branch
Support screw rod is equipped with location nut.
2. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claim 1, feature
It is：Simple shear grip block is located at positive draw below grip block during FRP- concrete simple shear tests；FRP- concrete is just drawing experiment
Just grip block is drawn to be located at below simple shear grip block in the process.
3. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claim 1 or 2, special
Sign is：Further include electronic universal tester, pedestal connecting plate is arranged on the work top of electronic universal tester.
4. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claim 1 or 2, special
Sign is：Studdle locating sleeve is set on the pedestal connecting plate, studdle is assembled in studdle locating sleeve.
5. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claim 4, feature
It is：Strip-shaped hole is opened up in the middle part of simple shear grip block, and the quadrangle of strip-shaped hole carries out round receipts angle；Positive draw opens up in the middle part of grip block
Square hole, and the quadrangle of square hole carries out round receipts angle；Simple shear grip block, just to draw grip block, pedestal connecting plate be steel plate；
Studdle locating sleeve is welded on pedestal connecting plate；Pedestal connecting plate is two pieces, is arranged two on each piece of pedestal connecting plate
A studdle locating sleeve, studdle are four.
6. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claims 1 or 2 or 5,
It is characterized in that：The location nut of the grip block of support lower part is two on each studdle, limits the grip block of lower part
Location nut is one, and it is one to support the location nut of the grip block on top, and the location nut for limiting the grip block on top is
One.
7. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claims 1 or 2 or 5,
It is characterized in that：When simple shear test, simple shear test specimen is arranged in positive draw between grip block and simple shear grip block, simple shear test specimen side bonds
FRP sheet materials.
8. a kind of experimental provision for studying FRP- concrete interface adhesive properties according to claims 1 or 2 or 5,
It is characterized in that：When positive drawing experiment, it is arranged between simple shear grip block and positive drawing grip block and just draws test specimen, positive drawing test specimen bottom adhesive
Connector, the bloom that connector includes and the FRP sheet materials of test specimen bottom is just drawn to bond, steel is arranged in FRP sheet materials, FRP sheet materials bottom
Block, which is threadedly coupled, stretches screw rod, collet garter extension screw rod under electronic universal tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820159906.1U CN207816740U (en) | 2018-01-31 | 2018-01-31 | A kind of experimental provision for studying FRP- concrete interface adhesive properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820159906.1U CN207816740U (en) | 2018-01-31 | 2018-01-31 | A kind of experimental provision for studying FRP- concrete interface adhesive properties |
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| CN207816740U true CN207816740U (en) | 2018-09-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088756A (en) * | 2018-01-31 | 2018-05-29 | 福州大学 | A kind of experimental provision and its application method for being used to study FRP- concrete interface adhesive properties |
| CN110455643A (en) * | 2019-07-09 | 2019-11-15 | 河海大学 | A kind of symmetrical expression double shear interfacial adhesion experimental rig and test method |
-
2018
- 2018-01-31 CN CN201820159906.1U patent/CN207816740U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088756A (en) * | 2018-01-31 | 2018-05-29 | 福州大学 | A kind of experimental provision and its application method for being used to study FRP- concrete interface adhesive properties |
| CN108088756B (en) * | 2018-01-31 | 2023-09-12 | 福州大学 | Experimental device for researching FRP-concrete interface bonding performance and application method thereof |
| CN110455643A (en) * | 2019-07-09 | 2019-11-15 | 河海大学 | A kind of symmetrical expression double shear interfacial adhesion experimental rig and test method |
| CN110455643B (en) * | 2019-07-09 | 2020-09-22 | 河海大学 | Symmetric double-shear interface bonding test device and test method |
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