CN204924892U - Effect test device is adhered to in uniaxial extension effect protective coating down - Google Patents
Effect test device is adhered to in uniaxial extension effect protective coating down Download PDFInfo
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- CN204924892U CN204924892U CN201520279920.1U CN201520279920U CN204924892U CN 204924892 U CN204924892 U CN 204924892U CN 201520279920 U CN201520279920 U CN 201520279920U CN 204924892 U CN204924892 U CN 204924892U
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Abstract
The utility model is suitable for an anticorrosive engineering application capability test technical field of bridge discloses an effect test device is adhered to in uniaxial extension effect protective coating down. Test device includes test piece, fixing system, loading system and recording system, needs to use with the servo structural test of large -scale hydraulic pressure machine is supporting. The test piece includes that concrete test block and - steel sheet test piece constitute, fixing system includes concrete counter -force ground and the anchor clamps that are used for the fixation test test piece, loading system includes splint, bolt, lower chain union piece and cochain union piece, recording system includes foil gage, pressure sensor. The utility model discloses the flexible operation is fixed simple, and loading system is adjusted to the accessible, changes the test piece size, changes methods such as loading mode, realizes axle center loading effect, eccentric loading effect, test piece size effect, the tired effect of vibrations protective coating and concrete and the test of protecting the adhesion stress numerical value, the protective coating destruction condition etc. Of structure down.
Description
Technical field
The utility model relates to protective coating adhesion effect test unit under a kind of uniaxial tension effect, is applicable to bridge anticorrosion engineering performance study, belongs to technical field of measurement and test.
Background technology
The anchor system of Large bridge beam bridge (suspension bridge) is the pith in its bearing support system, plays conclusive effect to bridge resistance to overturning.Anchor system is generally formed by anchoring steel construction and concreting.When bridge builds up, there is discharge moment, the steel construction now in anchor system bears huge tensile load effect, deforms.If the direct and concreting by steel construction, because the cohesive force between steel construction and concrete is comparatively large, in discharge moment, concrete rupture may be caused to damage.For head it off, current common method is: at part steel construction outer layer covers class A foam A material, to reduce the cohesive force between steel construction and concrete.Although this kind of method can solve because discharge causes the problem of concrete destruction effectively, but because of exist between steel construction and concrete compared with wide arc gap and class A foam A material antiseptic poor, steel construction in anchor system is easily corroded, hydraulic performance decline, thus affect the resistance to overturning of bridge structure, reduce tenure of use.Therefore, start both at home and abroad at present to consider that the anticorrosion protective coating method of employing solves the problem solving load releasing and bring.Because anticorrosion protective coating has superior antiseptic property, can effectively delay steel construction corrosion, thus improve the serviceable life of engineering structure, be widely used at present in corrosion environment engineering field.But whether it can solve discharge problem, depends primarily on itself and concrete adhesive property.Therefore anticorrosion protective coating is studied and concrete adhesive property is most important.In sum, under researching and developing a kind of stretching action, protective coating bond effect test unit is significant.
Utility model content
For above-mentioned problem demanding prompt solution, utility model provides protective coating adhesion effect test unit under a kind of uniaxial tension effect, and by regulating loading system, change sample dimensions, change the method such as load mode, realize protective coating and concrete under axle center loading effect, bias-load effect, sample dimensions effect, vibrations fatigue effect and protect the test of the bond effect (cohesive force numerical value, protective coating destruction situation etc.) built.
For achieving the above object, the technical solution adopted in the utility model is: test unit comprises test specimen, fixed system, loading system and register system.Test specimen comprises concrete block and-steel plate test specimen; Fixed system comprises concrete counter-force ground and the fixture for fixation test test specimen; Loading system comprises clamping plate, bolt, lower chaining part and upper chaining part; Register system comprises foil gauge, pressure transducer.Test specimen is made up of rectangular parallelepiped concrete test block and the steel plate test specimen being attached with protective coating system, and four circular holes are arranged at steel plate test specimen top.
Further, when doing axle center tension test, need to finely tune test specimen position, to prevent bias-load.
Further, can to test specimen application different materials protective coating and different-thickness protective coating, with the impact on protective coating and concrete binding power of the Study of the Realization protective coating kind and protective coating thickness.
Further, the size of steel plate test specimen and concrete sample can be changed, with the impact of the Study of the Realization size effect on protective coating and concrete binding power.
Further, can change loading system, as clamping plate being placed on the side of steel plate test specimen and lower web member, under realizing bias-load effect, protective coating and concrete binding effect, can change the thickness of clamping plate, the distance of adjusted bias simultaneously.
The technical scheme that the utility model adopts has following steps: test specimen is made up of rectangular parallelepiped concrete test block and the steel plate test specimen being attached with protective coating system, and four circular holes are arranged at steel plate test specimen top.According to protective coating design proposal, application is carried out to steel plate test specimen, foil gauge is sticked in steel plate test specimen midline, make concrete-steel plate stretching test specimen, test specimen is positioned on ground, with reference to the vertical direction of testing machine actuator, the position of adjustment test specimen, make its centering, screw rod and bolt is utilized to be fixed on counter-force ground, with clamping plate, steel plate test specimen and lower web member are fixed, lower web member is connected with pressure transducer rigidity spiral shell head, upper connector is connected with pressure transducer rigidity spiral shell head, upper connector is connected with testing machine actuator.Foil gauge lead-in wire is connected with strainmeter with pressure transducer lead-in wire, dummy ga(u)ge, debugging large hydraulic servo structure testing machine.Start servo to test, the corresponding strain of record and pulling force, can adopt substep to load, also can adopt continuous load mode.After off-test, first unload, then extract chain fishplate and standing screw, take out concrete sample and steel plate test specimen, observe its collapse state.
The beneficial effects of the utility model are: the utility model flexible operation, fixing simple; And by regulating loading system, change sample dimensions, change the method such as load mode, realize protective coating and concrete under axle center loading effect, bias-load effect, sample dimensions effect, vibrations fatigue effect and protect the test of the bond effect (cohesive force numerical value, protective coating destruction situation etc.) built.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1. concrete counter-force ground; 2. stationary fixture; 3. concrete sample; 4. post foil gauge and through the steel plate test specimen of application; 5. clamping plate; 6. descend web member; 7 pressure transducers; 8. upper connector.
Fig. 2 is fixed system schematic diagram of the present utility model;
In figure: 2-1. concrete counter-force ground; 2-2. pad; 2-3. screw rod; 2-4. nut; 2-5. box fixture; 2-6. bolt hole.
Fig. 3 is test test specimen schematic diagram of the present utility model;
3-1. concrete sample; 3-2. steel plate test specimen; 3-3. bolt hole; 3-4. protective coating; 3-5. foil gauge.
Fig. 4 is fixture of the present utility model and coupling arrangement schematic diagram;
4-1. bolt; 4-2. clamping plate; 4-3. rib version; 4-4. solid rigidity spiral shell head; 4-5. links steel plate; Web member under 4-6.; 4-7 nut; 4-8. pad.
Fig. 5 is coupling arrangement schematic diagram of the present utility model;
5-1. upper connector; 5-2. bolt; 5-3. solid rigidity cylindricality connecting link; 5-4. solid rigidity spiral shell head; 5-5. bolt hole; 5-6. bolt.
Fig. 6 is pressure transducer schematic diagram.6-1. pressure sensor interface; 6-2. pressure sensor body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Test unit comprises test specimen; Fixed system, loading system and register system; Test specimen comprises concrete block 2-1, steel plate test specimen 2-2, protective coating 2-3; Fixed system comprises concrete counter-force ground 3-1, pad 3-2, screw rod 3-3, nut 3-4 and box cushion block 3-5; Loading system comprises clamping plate 4-2, and lower chaining part 6 comprises floor 4-3, rigidity spiral shell head 4-4, cushion block 4-5 and steel plate test specimen 4-6, and upper connector 8 comprises steel plate test specimen 5-1, rigidity right cylinder 5-3 and rigidity spiral shell head 5-4; Register system comprises foil gauge 3-5 and pressure transducer 7.
When doing axle center tension test, need fine setting test specimen 3-1, to prevent bias-load.
Can to test specimen application different materials protective coating 3-4 and different-thickness protective coating 3-4, with the impact on protective coating 3-4 and concrete 3-1 cohesive force of the Study of the Realization protective coating 3-4 kind and protective coating 3-4 thickness.
The size of steel plate test specimen 3-2 and concrete sample 3-1 can be changed, with the impact of the Study of the Realization size effect on protective coating 3-4 and concrete 3-1 cohesive force.
Loading system can be changed, as clamping plate 4-2 being placed on the side of steel plate test specimen 3-2 and lower junction steel plate test specimen 4-6, under realizing bias-load effect, protective coating 3-4 and concrete 3-1 bond effect, the thickness of clamping plate 4-2 can be changed, the distance of adjusted bias simultaneously.
The technical scheme that the utility model adopts has following steps: make steel plate test specimen 3-2 according to design size, according to protective coating 3-4 design proposal, application is carried out to steel plate test specimen 3-2, foil gauge 3-5 is sticked in steel plate test specimen 3-2 midline, make concrete-steel plate stretching test specimen, test specimen is positioned over 2-1 on counter-force ground, with reference to the vertical direction of testing machine actuator, the position of adjustment test specimen, make its centering, screw rod 2-3 is utilized to be fixed in 2-1 on counter-force ground, with clamping plate 4-2, test steel plate 3-2 and lower web member 6 are fixed, lower web member 6 is connected with pressure transducer 7 rigidity spiral shell head 4-4, upper connector 8 is connected with pressure transducer 7 rigidity spiral shell head 5-4, upper connector 8 is connected with testing machine actuator bolt 5-6.Foil gauge is drawn 3-5 line and pressure transducer 7 to go between and to be connected with strainmeter 10, dummy ga(u)ge 3-5, debugging large hydraulic servo structure testing machine.Start servo to test, the corresponding strain of record and pulling force, can adopt substep to load, also can adopt continuous load mode.After off-test, first unload, then extract chain fishplate 4-2 and standing screw 2-3, take out concrete sample 3-2 and steel plate test specimen 3-2, observe its collapse state.
Claims (2)
1. protective coating adhesion effect test unit under a uniaxial tension effect, it is characterized in that, test unit comprises test specimen, fixed system, loading system and register system, test specimen comprises concrete block and-steel plate test specimen, fixed system comprises concrete counter-force ground and the fixture for fixation test test specimen, loading system comprises clamping plate, bolt, lower chaining part and upper chaining part, and register system comprises foil gauge, pressure transducer.
2. protective coating adhesion effect test unit under a kind of uniaxial tension effect according to claim 1, is characterized in that, test specimen is made up of rectangular parallelepiped concrete test block and the steel plate test specimen being attached with protective coating system, and four circular holes are arranged at steel plate test specimen top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279920.1U CN204924892U (en) | 2015-05-04 | 2015-05-04 | Effect test device is adhered to in uniaxial extension effect protective coating down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279920.1U CN204924892U (en) | 2015-05-04 | 2015-05-04 | Effect test device is adhered to in uniaxial extension effect protective coating down |
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| Publication Number | Publication Date |
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| CN204924892U true CN204924892U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279920.1U Expired - Fee Related CN204924892U (en) | 2015-05-04 | 2015-05-04 | Effect test device is adhered to in uniaxial extension effect protective coating down |
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| CN (1) | CN204924892U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388107A (en) * | 2015-05-04 | 2016-03-09 | 徐州工程学院 | Protective coating adhesion effect test device and test method under action of uniaxial tension |
| CN108637949A (en) * | 2018-04-25 | 2018-10-12 | 武汉科技大学 | It is a kind of be suitable for heating to heart fixture |
| CN108663500A (en) * | 2018-06-15 | 2018-10-16 | 赵银宝 | A kind of Adhensive performance test device |
| CN109900635A (en) * | 2019-03-18 | 2019-06-18 | 华侨大学 | Test the direct stress test block and its application method of intumescent coating and substrate |
| CN114279874A (en) * | 2021-08-16 | 2022-04-05 | 宁波路宝科技实业集团有限公司 | High-temperature fatigue test device and resin concrete high-temperature fatigue test method thereof |
-
2015
- 2015-05-04 CN CN201520279920.1U patent/CN204924892U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388107A (en) * | 2015-05-04 | 2016-03-09 | 徐州工程学院 | Protective coating adhesion effect test device and test method under action of uniaxial tension |
| CN108637949A (en) * | 2018-04-25 | 2018-10-12 | 武汉科技大学 | It is a kind of be suitable for heating to heart fixture |
| CN108663500A (en) * | 2018-06-15 | 2018-10-16 | 赵银宝 | A kind of Adhensive performance test device |
| CN108663500B (en) * | 2018-06-15 | 2020-11-06 | 赵银宝 | Adhesive performance testing device |
| CN109900635A (en) * | 2019-03-18 | 2019-06-18 | 华侨大学 | Test the direct stress test block and its application method of intumescent coating and substrate |
| CN109900635B (en) * | 2019-03-18 | 2024-02-02 | 华侨大学 | Positive stress test piece for testing expansion type fireproof coating and base material and application method thereof |
| CN114279874A (en) * | 2021-08-16 | 2022-04-05 | 宁波路宝科技实业集团有限公司 | High-temperature fatigue test device and resin concrete high-temperature fatigue test 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: 20151230 Termination date: 20170504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |