CN204282649U - A kind of CFRP muscle binding type ground tackle - Google Patents
A kind of CFRP muscle binding type ground tackle Download PDFInfo
- Publication number
- CN204282649U CN204282649U CN201420738759.5U CN201420738759U CN204282649U CN 204282649 U CN204282649 U CN 204282649U CN 201420738759 U CN201420738759 U CN 201420738759U CN 204282649 U CN204282649 U CN 204282649U
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- CN
- China
- Prior art keywords
- ground tackle
- steel sleeve
- capping
- cfrp muscle
- inner cone
- 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.)
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Abstract
A kind of CFRP muscle binding type ground tackle, comprises CFRP muscle, steel sleeve, nut, capping and end stifled; Wherein, steel sleeve is made up of direct tube section and inner cone section, and capping is arranged on the end face of inner cone section, and nut is connected with the outside screw of inner cone section, and the openend inner surface of direct tube section is provided with internal thread, and end is stifled to be threaded with between direct tube section; The sidewall of steel sleeve offers fill orifice and steam vent; Block in capping and end and be provided with corresponding some locating holes, the two ends of some CFRP muscle be arranged in parallel are each passed through capping and hold the some locating holes blocked, in steel sleeve is filled, have pouring material.The utility model is provided with inner cone section at the sleeve of ground tackle rear section, and the colloid (or body) of this segment limit will form voussoir, and with the increase of stretching force, voussoir will produce extruding force to muscle material, thus improve the adhesion strength of muscle material-colloidal interface; In ground tackle forward part, direct tube section is set for transition, avoids concentrating at ground tackle mouth generation stress and cutting off muscle material.
Description
Technical field
The utility model belongs to building and technical field of bridge engineering, is specifically related to a kind of CFRP muscle binding type ground tackle.
Background technology
Carbon fibre reinforced composite (CFRP) is that a kind of density is little, intensity is high, corrosion-resistant, fatigue proof new material, obtains extensive research and apply at present in civil engineering.But its horizontal resistance to compression and shear strength low, when be used as presstressed reinforcing steel time, carry out anchoring according to traditional ground tackle to it, CFRP muscle material will be made anchoring premature failure at ground tackle mouth place by cutting off.
Utility model content
The purpose of this utility model there are provided a kind of CFRP muscle binding type ground tackle, and it can ensure not occur in the phenomenon that ground tackle mouth cuts off CFRP muscle material in ground tackle construction and use procedure, thus promotes the application of Prestressed CFRP muscle in civil engineering.
For reaching this object, the utility model by the following technical solutions:
A kind of CFRP muscle binding type ground tackle, comprises some CFRP muscle, steel sleeve, nut, capping and end stifled; Wherein, steel sleeve is made up of direct tube section and inner cone section, and capping is arranged on the end face of inner cone section, and nut is connected with the outside screw of inner cone section, and the openend inner surface of direct tube section is provided with internal thread, and end is stifled to be threaded with between direct tube section; The sidewall of steel sleeve offers fill orifice and steam vent; Block in capping and end and be provided with corresponding some locating holes, the two ends of some CFRP muscle be arranged in parallel are each passed through capping and hold the some locating holes blocked, in steel sleeve is filled, have pouring material.
The utility model further improves and is: pouring material selects epoxy resin or micro-expansion cement.
The utility model further improves and is: direct tube section accounts for 1/3 of steel sleeve length, and inner cone section accounts for 2/3 of steel sleeve length.
The utility model further improves and is: the inner surface of inner cone section is smooth, and its roughness Ra gets 12.5.
The utility model further improves and is: the diameter of fill orifice is 28mm; The diameter of steam vent is 4mm.
The utility model further improves and is: fill orifice is arranged on the middle part of steel sleeve, and the sidewall of steel sleeve offers two steam vents, and two steam vents are separately positioned on the two ends of steel sleeve.
The utility model further improves and is: the diameter of the locating hole that capping and end block is greater than the diameter 2mm of CFRP muscle.
The utility model further improves and is: the screw that capping is arranged by circumference is arranged on the end face of inner cone section.
The utility model further improves and is: the openend internal thread length of direct tube section is 30cm.
Compared with prior art, the utility model has following advantage:
The utility model middle-end is blocked up and is provided with corresponding locating hole with capping, to make the spaced certain distance of CFRP muscle and keeping parallelism.The effect of steel sleeve is to provide reperfusion space and fixes muscle material by the adhesion stress that perfusion is expected, the sleeve of existing ground tackle is generally straight barrel type and interior tapered.Straight barrel type ground tackle generally needs the length sleeve grown very much, because the uneven Mean Shear intensity that causes of the bond stress at its interface is less; In tapered ground tackle ground tackle mouth easily produce stress concentrate and cut up muscle material.For the shortcoming that above two kinds of form of sleeve ground tackles exist, the utility model proposes a kind of combined sleeve form ground tackle, inner cone section is provided with at the sleeve of ground tackle rear section, the colloid (or body) of this segment limit will form voussoir, with the increase of stretching force, voussoir will produce extruding force to muscle material, thus improve the adhesion strength of muscle material-colloidal interface; In ground tackle forward part, direct tube section is set for transition, avoids concentrating at ground tackle mouth generation stress and cutting off muscle material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model CFRP muscle binding type ground tackle;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
In figure: 1 is CFRP muscle, 2 is steel sleeve, and 3 is nut, and 4 is capping, and 5 is stifled for holding, and 6 is pouring material, and 7 is fill orifice, and 8 is steam vent.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1 and Fig. 2, a kind of CFRP muscle of the utility model binding type ground tackle, comprises some CFRP muscle 1, steel sleeve 2, nut 3, capping 4 and end stifled 5; Wherein, steel sleeve 2 is made up of direct tube section and inner cone section, and capping 4 is arranged on the end face of inner cone section, and nut 3 is connected with the outside screw of inner cone section, and the openend inner surface of direct tube section is provided with internal thread, and end is stifled to be threaded between 5 with direct tube section; The sidewall of steel sleeve 2 offers fill orifice 7 and two steam vents 8; Capping 4 and end stifled 5 are provided with corresponding some locating holes, and the two ends of some CFRP muscle 1 be arranged in parallel are each passed through the some locating holes on capping 4 and end stifled 5, and are filled with pouring material 6 by fill orifice 7 at steel sleeve 2.Wherein, pouring material 6 selects epoxy resin or micro-expansion cement.
Further, steel sleeve 2 is made up of two parts, and direct tube section accounts for 1/3 of steel sleeve 2 length, and inner cone section accounts for 2/3 of steel sleeve 2 length, and inner cone section inner surface is smooth, and its roughness Ra gets 12.5, so that the follow-up of colloid form extruding force.The openend of direct tube section offers the long internal thread of 30mm, so that being screwed into of end stifled 5.The fill orifice 7 that diameter is 28mm is set in the middle part of steel sleeve 2, and the steam vent 8 that diameter is 4mm is set respectively at two ends.For ensureing the collimation of CFRP muscle 1, to make each CFRP muscle 1 uniform force, end stifled 4 and capping 5 arrange corresponding locating hole, its diameter 2mm larger than CFRP muscle 1 diameter, so that CFRP muscle 1 passes, at free segment, several location-plate is set to ensure the collimation of free segment muscle material simultaneously.
Binding type ground tackle could use after needing to pour in advance the time that also maintenance is suitable, and its instillation process is very important.Should the cutting length of first accurate Calculation CFRP muscle before perfusion.For convenience of perfusion, adopt horizontal instillation process, in filling process, should strong vibration be added, be beneficial to the trickling of colloid or cement and closely knit.Illustrate when former and later two steam vents all emerge perfusion material and fill, also can adopt slip casing by pressure technique, to ensure the density of pouring into material.
Claims (9)
1. a CFRP muscle binding type ground tackle, is characterized in that: comprise some CFRP muscle (1), steel sleeve (2), nut (3), capping (4) and end stifled (5); Wherein, steel sleeve (2) is made up of direct tube section and inner cone section, capping (4) is arranged on the end face of inner cone section, nut (3) is connected with the outside screw of inner cone section, the openend inner surface of direct tube section is provided with internal thread, and end stifled (5) is threaded with between direct tube section; The sidewall of steel sleeve (2) offers fill orifice (7) and steam vent (8); Capping (4) and end stifled (5) are provided with corresponding some locating holes, the two ends of some CFRP muscle (1) be arranged in parallel are each passed through the some locating holes on capping (4) and end stifled (5), in steel sleeve (2) is filled, have pouring material (6).
2. a kind of CFRP muscle binding type ground tackle according to claim 1, is characterized in that: pouring material (6) selects epoxy resin or micro-expansion cement.
3. a kind of CFRP muscle binding type ground tackle according to claim 1, it is characterized in that: direct tube section accounts for 1/3 of steel sleeve (2) length, inner cone section accounts for 2/3 of steel sleeve (2) length.
4. a kind of CFRP muscle binding type ground tackle according to claim 1 or 3, it is characterized in that: the inner surface of inner cone section is smooth, its roughness Ra gets 12.5.
5. a kind of CFRP muscle binding type ground tackle according to claim 1, is characterized in that: the diameter of fill orifice (7) is 28mm; The diameter of steam vent (8) is 4mm.
6. a kind of CFRP muscle binding type ground tackle according to claim 1 or 5, it is characterized in that: fill orifice (7) is arranged on the middle part of steel sleeve (2), the sidewall of steel sleeve (2) offers two steam vents (8), and two steam vents (8) are separately positioned on the two ends of steel sleeve (2).
7. a kind of CFRP muscle binding type ground tackle according to claim 1, is characterized in that: the diameter of the locating hole that capping (4) and end block up on (5) is greater than the diameter 2mm of CFRP muscle (1).
8. a kind of CFRP muscle binding type ground tackle according to claim 1, is characterized in that: the screw that capping (4) is arranged by circumference is arranged on the end face of inner cone section.
9. a kind of CFRP muscle binding type ground tackle according to claim 1, is characterized in that: the openend internal thread length of direct tube section is 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738759.5U CN204282649U (en) | 2014-11-28 | 2014-11-28 | A kind of CFRP muscle binding type ground tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738759.5U CN204282649U (en) | 2014-11-28 | 2014-11-28 | A kind of CFRP muscle binding type ground tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204282649U true CN204282649U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738759.5U Expired - Fee Related CN204282649U (en) | 2014-11-28 | 2014-11-28 | A kind of CFRP muscle binding type ground tackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204282649U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421231A (en) * | 2015-12-25 | 2016-03-23 | 招商局重庆交通科研设计院有限公司 | CFRP rib inhaul cable group anchorage device for bridge and manufacturing process of CFRP tendon inhaul cable group anchorage device |
| CN106522472A (en) * | 2016-12-14 | 2017-03-22 | 长安大学 | Sliding self-locking CFRP rib anchor device and mounting method thereof |
| CN108221666A (en) * | 2017-12-28 | 2018-06-29 | 江苏大学 | A kind of compound anchorage of FRP tendons |
| CN109356029A (en) * | 2018-11-27 | 2019-02-19 | 长安大学 | A kind of compound anchorage of CFRP tendons pre-extrusion |
| CN111206502A (en) * | 2020-01-07 | 2020-05-29 | 东南大学 | Anchoring method of integrally cast high-tension composite stay cable |
-
2014
- 2014-11-28 CN CN201420738759.5U patent/CN204282649U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421231A (en) * | 2015-12-25 | 2016-03-23 | 招商局重庆交通科研设计院有限公司 | CFRP rib inhaul cable group anchorage device for bridge and manufacturing process of CFRP tendon inhaul cable group anchorage device |
| CN106522472A (en) * | 2016-12-14 | 2017-03-22 | 长安大学 | Sliding self-locking CFRP rib anchor device and mounting method thereof |
| CN108221666A (en) * | 2017-12-28 | 2018-06-29 | 江苏大学 | A kind of compound anchorage of FRP tendons |
| CN109356029A (en) * | 2018-11-27 | 2019-02-19 | 长安大学 | A kind of compound anchorage of CFRP tendons pre-extrusion |
| CN109356029B (en) * | 2018-11-27 | 2024-05-03 | 长安大学 | CFRP rib pre-extrusion composite anchorage device |
| CN111206502A (en) * | 2020-01-07 | 2020-05-29 | 东南大学 | Anchoring method of integrally cast high-tension composite stay cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20171128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |