CN202599765U - Testing device for steel member high-temperature local stability - Google Patents
Testing device for steel member high-temperature local stability Download PDFInfo
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- CN202599765U CN202599765U CN 201220285912 CN201220285912U CN202599765U CN 202599765 U CN202599765 U CN 202599765U CN 201220285912 CN201220285912 CN 201220285912 CN 201220285912 U CN201220285912 U CN 201220285912U CN 202599765 U CN202599765 U CN 202599765U
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Abstract
A testing device for steel member high-temperature local stability comprises a counter-force beam, a loading beam, an electric stove and two pull-pressing jacks, wherein the counter-force beam, the loading beam, the electric stove and the two pull-pressing jack are fixed on the ground through fasteners. The left end and the right end of the upper surface of the counter-force beam are respectively fixed with one pull-pressing jack. The electric stove is installed on the upper surface of the counter-force beam. A bolt bar is fixed on a mandril of each pull-pressing jack. The two bolt bars respectively penetrate through the left end and the right end of the loading beam. The lower surface of the loading beam is placed on a top end face of a testing piece loaded into the electric stove. Two pressure sensors respectively penetrate through the bolt bars and are located on the upper surface of the loading beam. A washer is arranged on each pressure sensor, and each washer is provided with a bolt fixed on each bolt bar. According to the testing device for the steel member high-temperature local stability, the testing device with good performance is provided for a local stability test of a steel member under high temperature; temperature rising, constant temperature, boundary constraint, load measurement, loading and other testing requirements which are needed for the test are met; and the fire high-temperature environment is truly simulated, so the local stability test of the testing piece under the high temperature can be successfully achieved.
Description
Technical field
The utility model relates to a kind of anti-fire test device.
Background technology
The generation of fire brings great harm for human safety of life and property, is the human disaster that faces jointly, and the life of capturing many people's preciousnesses that it can be merciless can turn to dust and ashes by the wealth with mankind's accumulation in moment.Fire mainly is divided into building fire; Forest fire, industrial and mineral fire, polytypes such as traffic fire; Wherein building fire is the most direct to the mankind's harm; The most serious, because the place that buildings is the mankind depends on for existence and development, and guarantee that personnel and property safety in the buildings build and one of most significant problems that structural design person should consider.Girder steel and steel column are the main supporting members of buildings, in fire, are easy to destroy.It destroys principal mode is strength failure, and monolithic stability destroys and local stability disruption.In order better to take precautions against fire the steel member is protected, thereby guarantee people's safety of life and property need should be understood the local stability ability of steel member under high temperature of fire to the various failure modes further investigations of steel member.At present, the test of domestic fire performance to building element only limits to study the monolithic stability bearing capacity of basic primary structure member and confining part, does not also see to the mensuration of steel component partial stability under the high temperature.
The utility model content
The purpose of the utility model just provides the local stability test device of a kind of steel component high-temperature, and it can make an experiment to steel member local stability at high temperature.
The purpose of the utility model is to realize through such technical scheme; It includes reaction beam, loading beam, electric furnace and two the tension and compression lifting jack that are fixed on ground through securing member; Upper surface right ends at reaction beam respectively is fixed with a tension and compression lifting jack; Electric furnace is installed in the reaction beam upper surface, on the push rod of tension and compression lifting jack, is fixed with body of bolt, and two body of bolt pass the right ends of loading beam respectively; The lower surface of loading beam is placed on the top end face that is carried in the test specimen in the electric furnace; Two pressure transducers pass body of bolt respectively and are positioned at the loading beam upper surface, on pressure transducer, are provided with a pad, and each pad is provided with a bolt that is fixed on the body of bolt.
Further, the upper surface of said reaction beam is provided with installation base, and electric furnace is fixed on the installation base.
Further, said loading beam lower surface is provided with fixing lug boss, and the fixing lug boss lower surface is placed on the test specimen top end face.
Further, be provided with thermal insulation board between test specimen and the reaction beam and between test specimen and the loading beam.
Further, said thermal insulation board is an aluminosilicate fiberboard.
Further, said securing member includes screw rod and bolt, and screw rod passes reaction beam, and bolt is fixed on the reaction beam upper surface through screw rod.
Further, said electric furnace sidewall is provided with viewport.
Owing to adopted technique scheme, the utlity model has following advantage:
The utility model is that steel member local stability at high temperature can be tested well behaved test unit is provided; Satisfied and tested required intensification, constant temperature; Boundary constraint, testing requirementss such as load measurement and loading, real simulated the hot environment of fire; Make test specimen at high temperature local stability can test and can successfully accomplish, thereby lay a good foundation for local stability under the high temperature of research building iron member can and instruct the anti-fire design of steel member.
Other advantages, target and the characteristic of the utility model will be set forth in instructions subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following instructions and claims.
Description of drawings
The description of drawings of the utility model is following.
Fig. 1 is the structural representation of the utility model.
Among the figure: 1. reaction beam; 2. loading beam; 3. electric furnace; 4. tension and compression lifting jack; 5. body of bolt; 6. pressure transducer; 7. pad; 8. bolt; 9. thermal insulation board; 10. test specimen; 11. installation base; 12. fixing lug boss; 13. viewport; 14. securing member.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
The local stability test device of steel component high-temperature; Include reaction beam 1, loading beam 2, electric furnace 3 and two tension and compression lifting jack 4 of being fixed on ground through securing member 14; Upper surface right ends at reaction beam 1 respectively is fixed with a tension and compression lifting jack 4; Electric furnace 3 is installed in reaction beam 1 upper surface, on the push rod of tension and compression lifting jack 4, is fixed with the right ends that 5, two body of bolt 5 of body of bolt pass loading beam 2 respectively; The lower surface of loading beam 2 is placed on the top end face that is carried in the test specimen 10 in the electric furnace 3; Two pressure transducers 6 pass body of bolt 5 respectively and are positioned at loading beam 2 upper surfaces, on pressure transducer 6, are provided with a pad 7, and each pad 7 is provided with a bolt 8 that is fixed on the body of bolt 5.
During work reaction beam 1 is fixed on the ground that has groove, tension and compression lifting jack 4 in place is arranged thermal insulation board 9; Test specimen 10 is installed on reaction beam 1, thermal insulation board 9 is in test specimen 10 tops, and lifting loading beam 2 also adopts bolt to connect loading beam 2 in test specimen 10 tops; Placement force sensor 6; Shelve pad 7, fastening bolt 8 is placed electric furnace 3 around test specimen 10.Earlier preset target temperature value during work, the power switch of startup electric furnace 3 is treated to keep constant temperature 30 minutes after temperature reaches predetermined value; Thermopair through being arranged on the test specimen 10 reads the test specimen Temperature Distribution; After treating uniformity of temperature profile, start tension and compression lifting jack 4, observe the measurement result of displacement meter behind the load application; Treat to stop to load after test specimen reaches flexing, close electric furnace 3 power supplys.Obtain furnace temperature and pressure transducer and displacement measurement data through computer acquisition.
The utility model is that steel member local stability at high temperature can be tested well behaved test unit is provided; Satisfied and tested required intensification, constant temperature; Boundary constraint, testing requirementss such as load measurement and loading, real simulated the hot environment of fire; Make test specimen at high temperature local stability can test and can successfully accomplish, thereby lay a good foundation for local stability under the high temperature of research building iron member can and instruct the anti-fire design of steel member.
The upper surface of said reaction beam 1 is provided with installation base 11, and electric furnace 3 is fixed on the installation base 11.
Said loading beam 2 lower surfaces are provided with fixing lug boss 12, and fixing lug boss 12 lower surfaces are placed on test specimen 10 top end faces.
In order to prolong the serviceable life of the utility model, prevent that reaction beam 1 and loading beam 2 from being damaged by high temperature, is being provided with thermal insulation board 9 between test specimen 10 and the reaction beam 1 and between test specimen 10 and the loading beam 2.
Said thermal insulation board 9 is an aluminosilicate fiberboard.
Said securing member 14 includes screw rod and bolt, and screw rod passes reaction beam 1, and bolt is fixed on reaction beam 1 upper surface through screw rod.
Said electric furnace 3 sidewalls are provided with viewport 13.The staff can see the deformed state of test specimen 10 under the high temperature through viewport 13.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (7)
1. the local stability test device of steel component high-temperature; It is characterized in that: include reaction beam, loading beam, electric furnace and two tension and compression lifting jack of being fixed on ground through securing member; Upper surface right ends at reaction beam respectively is fixed with a tension and compression lifting jack; Electric furnace is installed in the reaction beam upper surface, on the push rod of tension and compression lifting jack, is fixed with body of bolt, and two body of bolt pass the right ends of loading beam respectively; The lower surface of loading beam is placed on the top end face that is carried in the test specimen in the electric furnace; Two pressure transducers pass body of bolt respectively and are positioned at the loading beam upper surface, on pressure transducer, are provided with a pad, and each pad is provided with a bolt that is fixed on the body of bolt.
2. the local stability test device of steel component high-temperature as claimed in claim 1, it is characterized in that: the upper surface of said reaction beam is provided with installation base, and electric furnace is fixed on the installation base.
3. the local stability test device of steel component high-temperature as claimed in claim 2, it is characterized in that: said loading beam lower surface is provided with fixing lug boss, and the fixing lug boss lower surface is placed on the test specimen top end face.
4. the local stability test device of steel component high-temperature as claimed in claim 1 is characterized in that: be provided with thermal insulation board between test specimen and the reaction beam and between test specimen and the loading beam.
5. the local stability test device of steel component high-temperature as claimed in claim 4, it is characterized in that: said thermal insulation board is an aluminosilicate fiberboard.
6. the local stability test device of steel component high-temperature as claimed in claim 1, it is characterized in that: said securing member includes screw rod and bolt, and screw rod passes reaction beam, and bolt is fixed on the reaction beam upper surface through screw rod.
7. the local stability test device of steel component high-temperature as claimed in claim 1, it is characterized in that: said electric furnace sidewall is provided with viewport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285912 CN202599765U (en) | 2012-06-18 | 2012-06-18 | Testing device for steel member high-temperature local stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285912 CN202599765U (en) | 2012-06-18 | 2012-06-18 | Testing device for steel member high-temperature local stability |
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| Publication Number | Publication Date |
|---|---|
| CN202599765U true CN202599765U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285912 Expired - Fee Related CN202599765U (en) | 2012-06-18 | 2012-06-18 | Testing device for steel member high-temperature local stability |
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| CN (1) | CN202599765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692349A (en) * | 2012-06-18 | 2012-09-26 | 重庆大学 | High-temperature local stability testing device for steel member |
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2012
- 2012-06-18 CN CN 201220285912 patent/CN202599765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692349A (en) * | 2012-06-18 | 2012-09-26 | 重庆大学 | High-temperature local stability testing device for steel member |
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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: 20121212 Termination date: 20130618 |