CN2553358Y - Hollow cylinder prestressed anchoring bundle forcemeter - Google Patents
Hollow cylinder prestressed anchoring bundle forcemeter Download PDFInfo
- Publication number
- CN2553358Y CN2553358Y CN 02229376 CN02229376U CN2553358Y CN 2553358 Y CN2553358 Y CN 2553358Y CN 02229376 CN02229376 CN 02229376 CN 02229376 U CN02229376 U CN 02229376U CN 2553358 Y CN2553358 Y CN 2553358Y
- Authority
- CN
- China
- Prior art keywords
- fixture block
- cable
- hollow cylinder
- anchor rods
- contained
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a hollow drum dynamometer for prestressing anchor cable, comprising a strain gauge 6, an upper fixture block 3 and a lower fixture block 4, wherein, the strain gauge 6 is arranged in the upper fixture block 3 and the lower fixture block 4; the lower fixture block 4 is arranged outside an elastic barrel 1; the strain gauge 6 is connected with a cable 7; the other end of the cable 7 is connected with a testing instrument. Providing a convenient monitoring method for prestressing monitoring, the utility model has the advantages of accurate measurement of the prestressing loss, reliable measured value, simple structure, and convenient use and very good effect in multiple large hydropower project trial.
Description
Technical field
The utility model relates to the surveying instrument technical field, specifically a kind of hollow type cylinder pre-stressed anchor rods dynamometer.
Background technology
In Hydraulic and Hydro-Power Engineering, reinforce through pre-stressed anchor rods commonly used, to improve the force-bearing situation of structure.Large scale for example, the concrete three-dimensional structure arc gate pier of large volume.Bear the huge concentrated thrust of arc door supporting leg, stress condition is very complicated, after the employing pre-stressed anchor rods is reinforced, has solved the problem of stress concentration in gate pier, the anchor block substantially.This shows that the advantage of prestressing technique is by applying prestress, make the concrete of resistance to tension weakness be in pressured state, unlikely appearance cracking, infiltration, corrosion problem.Therefore, this technology is day by day popularized in Hydraulic and Hydro-Power Engineering.
Carry out in the reinforcing process at pre-stressed anchor rods, later stage can produce certain loss of prestress, because the wall losses influence factor is a lot of behind the prestress that applies, loss mechanism also imperfectly understands, be difficult to calculate accurately, this difficult point is again the problem that the deviser extremely pays close attention to, and is a difficult problem that needs to be resolved hurrily in the prestressing technique.
Summary of the invention
The purpose of this utility model is a kind of hollow type cylinder pre-stressed anchor rods dynamometer that should lose in advance of monitoring of design.
The utility model hollow type cylinder pre-stressed anchor rods dynamometer; comprise elastic cylindrical body; strainometer is contained in the upper and lower fixture block; it is external that following fixture block is contained in elastic cylinder; big cover dish, upper sheath cover are contained on the external two ends of elastic cylinder; protective cover links to each other with big cover dish, upper sheath cover, and cable links to each other with strainometer, and the other end links to each other with test instrumentation.
The ergographic advantage of the utility model hollow type cylinder pre-stressed anchor rods is: can measure prestressed loss exactly, measured value is reliable, this is ergographic simple in structure, extremely easy to use, for prestressed monitoring provides one to overlap monitoring means easily, in a plurality of large-scale hydroelectric projects on probation, obtain very good effect.
Description of drawings
Accompanying drawing is a hollow type cylinder pre-stressed anchor rods dynamometer structural drawing.
Embodiment
With reference to the accompanying drawings; strainometer 6 is contained in the upper and lower fixture block 3,4; following fixture block 4 is contained in outside the elastic cylindrical body 1; big cover dish 2, upper sheath cover 8 are contained in the two ends outside the elastic cylindrical body 1; protective cover 5 links to each other with the outer of big cover dish 2, upper sheath cover 8; cable 7 links to each other with strainometer 6, and the other end and dynamometer epiphase connect.
Claims (3)
1, a kind of hollow type cylinder pre-stressed anchor rods dynamometer, comprising: be contained in the strainometer (6) in upper and lower fixture block (3), (4), following fixture block (4) is contained in outside the elastic cylindrical body (1).
2, hollow cylinder pre-stressed anchor rods dynamometer according to claim 1 is characterized in that: strainometer (6) links to each other with cable (7), and the other end of cable (7) links to each other with test instrumentation.
3, hollow cylinder pre-stressed anchor rods dynamometer according to claim 1 is characterized in that: big cover dish (2), upper sheath cover (8) are contained in the external two ends of elastic cylinder, and protective cover (5) links to each other with big cover dish (2), upper sheath cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229376 CN2553358Y (en) | 2002-05-13 | 2002-05-13 | Hollow cylinder prestressed anchoring bundle forcemeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229376 CN2553358Y (en) | 2002-05-13 | 2002-05-13 | Hollow cylinder prestressed anchoring bundle forcemeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2553358Y true CN2553358Y (en) | 2003-05-28 |
Family
ID=33705699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02229376 Expired - Fee Related CN2553358Y (en) | 2002-05-13 | 2002-05-13 | Hollow cylinder prestressed anchoring bundle forcemeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2553358Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346145C (en) * | 2005-07-25 | 2007-10-31 | 中国科学院力学研究所 | Marine platform ice force measuring method based on local dense strain response |
| CN100346144C (en) * | 2005-07-25 | 2007-10-31 | 中国科学院力学研究所 | Marine platform ice force measuring device based on local dense strain response |
| CN100451587C (en) * | 2006-05-25 | 2009-01-14 | 长安大学 | Steel twisted line tension test sensor |
-
2002
- 2002-05-13 CN CN 02229376 patent/CN2553358Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346145C (en) * | 2005-07-25 | 2007-10-31 | 中国科学院力学研究所 | Marine platform ice force measuring method based on local dense strain response |
| CN100346144C (en) * | 2005-07-25 | 2007-10-31 | 中国科学院力学研究所 | Marine platform ice force measuring device based on local dense strain response |
| CN100451587C (en) * | 2006-05-25 | 2009-01-14 | 长安大学 | Steel twisted line tension test sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |