CN201343829Y - Fixed end of steel wire strand - Google Patents
Fixed end of steel wire strand Download PDFInfo
- Publication number
- CN201343829Y CN201343829Y CNU2009200010347U CN200920001034U CN201343829Y CN 201343829 Y CN201343829 Y CN 201343829Y CN U2009200010347 U CNU2009200010347 U CN U2009200010347U CN 200920001034 U CN200920001034 U CN 200920001034U CN 201343829 Y CN201343829 Y CN 201343829Y
- Authority
- CN
- China
- Prior art keywords
- extruding
- fixed end
- anchor ring
- steel wire
- outer sleeve
- 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
Images
Abstract
Disclosed is a fixed end of a steel wire strand. The fixed end of a steel wire strand relates to the technical field of pre-stress anchor and is adaptable to steel wire strands with comparatively large diameters and occasions with larger stress force. The utility model utilizes the technical scheme that a novel fixed end of a steel wire strand is designed, which comprises an outer sleeve, an extruding anchor ring and an extruding clamping piece, wherein the outer sleeve is arranged on the external surface of the extruding anchor ring, the extruding clamping piece is mounted in an inner hole of the extruding anchor ring, and the outer sleeve is made of heat-treated materials with comparatively high hardness. Certain interference engagement exists between the inner diameter of the outer sleeve and the outer diameter of the extruded extruding anchor ring for avoiding over deformation, which fulfills a similar function of cramping and improving bearing capacity of the fixed end of the steel wire strand. The outer surface of the outer sleeve is provided with a smooth cylindrical surface or a cylindrical surface with screw threads, mainly for facilitating more convenient usage. Moreover, the outer sleeve can be connected with the structure by means of both conventional baffle form and screw thread form.
Description
Technical field
The utility model relates to the prestressed anchorage technology field, particularly a kind of steel strand fixed end.
Background technology
Increasingly extensive industry and the fields such as civilian construction, municipal road and bridge, mine laneway supporting of being applied to of prestressed anchorage technology, the prestress wire fixed end then be the most basic in the anchoring system, also be most important component, generally form by extruding anchor ring and extruding intermediate plate.During installation, to push anchor ring earlier is enclosed within on the prestress wire, again the crushing clamp sheet is contained between steel strand and the extruding anchor ring (promptly pushing in the endoporus of anchor ring), extruding facility by special use, make the reduced diameter of extruding anchor ring, like this, the extruding anchor ring just bonds together closely by extruding intermediate plate and steel strand, bears the axial prestress load of steel strand with this.Fragmentation this moment of extruding intermediate plate also is embedded in the slit of pushing between anchor ring endoporus and the steel strand, and effect is to increase frictional force.Whether the steel strand fixed end is effective, and can be related to prestress system successfully set up, and its importance is self-evident.
Present fixed end form stressed be not very big occasion, the 15.24 millimeters steel strand of diameter as the most commonly used can satisfy instructions for use fully.But, being used for larger-diameter steel strand, stressed bigger occasion, as 20 millimeters steel strand of diameter, the phenomenon that pulls appears easily then.Its reason mainly is: pushed the fixed end of finishing, the steel strand profile that its extruding anchor ring endoporus and multi-spiral are formed fits tightly, and plastic strain occurs, when steel strand apply pulling force to fixed end vertically, expansion trend can appear in extruding anchor ring endoporus, will pull inefficacy when serious; And the crimp that the extruding anchor ring pushes facility owing to necessary process, its hardness can not be very big, therefore improves the difficult execution of its supporting capacity by heat-treating methods.
Therefore, be necessary to design a kind of novel steel strand fixed end that can overcome above shortcoming, to adapt to the construction needs of big carrying steel strand.
Summary of the invention
The purpose of this utility model provides a kind of novel steel strand fixed end that can bear big load, can overcome the low shortcoming of conventional steel twisted wire fixed end bearing capacity.
For realizing above purpose, the utility model is by the following technical solutions: design a kind of novel steel strand fixed end, be made up of overcoat, extruding anchor ring and extruding intermediate plate, overcoat is installed on the external surface of extruding anchor ring, and the extruding intermediate plate is installed in the endoporus of extruding anchor ring; Overcoat adopts through the material heat treated, that hardness is higher, between the extruding anchor ring external diameter of its internal diameter and process extruding, have certain magnitude of interference to cooperate, purpose is the distortion that prevents that it is excessive, be similar to the effect of " banding ", the supporting capacity of steel strand fixed end is improved.The external surface of overcoat is the smooth face of cylinder, also can be the threaded face of cylinder, mainly is to be provided with for increasing the convenience of using, and both can use traditional baffle forms, also can take thread forms to be connected with structure.
The utility model has the advantages that, can overcome the existing low shortcoming of steel strand fixed end bearing capacity, and simple in structure, realize easily.
Description of drawings
Fig. 1 is an embodiment schematic diagram of the present utility model;
Fig. 2 is the structural representation of present conventional fixed end.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
See Fig. 1, the utility model is made up of overcoat 2, extruding anchor ring 3 and extruding intermediate plate 4, overcoat 2 is installed on the external surface of extruding anchor ring 3, adopt through the material heat treated, that hardness is higher, between the external diameter of the extruding anchor ring 3 of its endoporus and process extruding certain magnitude of interference is arranged, 1 is prestress wire.During installation, earlier overcoat 2 is inserted in prestress wire 1 slightly at a distance from the termination, to push anchor ring 3 again is inserted near prestress wire 1 termination, extruding intermediate plate 4 is contained between prestress wire 1 and the extruding anchor ring 3 (promptly pushing in the endoporus of anchor ring 3), extruding facility by special use, make the reduced diameter of extruding anchor ring 3, extruding anchor ring 3 just bonds together with prestress wire 1 closely by extruding intermediate plate 4, at last, again by special-purpose roof pressure facility, overcoat 2 is sleeved on the external surface of extruding anchor ring 3, such design strengthens the non-deformability of extruding anchor ring 3 greatly, can bear bigger axial load.The external surface of overcoat 2 is smooth faces of cylinder, also can be the threaded face of cylinder, mainly is to be provided with for increasing the convenience of using, and both can use traditional baffle forms, also can take thread forms to be connected with structure.Fig. 2 is the structural representation of present conventional fixed end, is made up of extruding anchor ring 3 and extruding intermediate plate 4, and as can be seen, the utility model has more an overcoat 2 by comparison, works to be similar to " banding ", and the supporting capacity of steel strand fixed end is improved.
Claims (2)
1, a kind of steel strand fixed end is made up of overcoat, extruding anchor ring and extruding intermediate plate, and it is characterized in that: described coat suit is on the external surface of extruding anchor ring, and described extruding intermediate plate is installed in the endoporus of extruding anchor ring.
2, steel strand fixed end according to claim 1 is characterized in that: the external surface of described overcoat is the smooth face of cylinder, also can be the threaded face of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200010347U CN201343829Y (en) | 2009-01-15 | 2009-01-15 | Fixed end of steel wire strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200010347U CN201343829Y (en) | 2009-01-15 | 2009-01-15 | Fixed end of steel wire strand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201343829Y true CN201343829Y (en) | 2009-11-11 |
Family
ID=41275412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200010347U Expired - Fee Related CN201343829Y (en) | 2009-01-15 | 2009-01-15 | Fixed end of steel wire strand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201343829Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126045A (en) * | 2012-02-21 | 2014-10-29 | Sika技术股份公司 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
-
2009
- 2009-01-15 CN CNU2009200010347U patent/CN201343829Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126045A (en) * | 2012-02-21 | 2014-10-29 | Sika技术股份公司 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101235663A (en) | Clip type anchorage applying to carbon fiber reinforced polymeric material prestressing force rib | |
| CN101603353A (en) | A kind of composite anchorage that is used for anchoring multiple fibre reinforced plastic twisted wire muscle or drag-line | |
| CN202202483U (en) | Anti-loose self anchor connector | |
| WO2017198105A1 (en) | Tension-resistant line clamp for carbon fiber composite core | |
| CN104453099B (en) | A kind of fine setting ground tackle and method that can compensate loss of prestress | |
| CN201343829Y (en) | Fixed end of steel wire strand | |
| CN202611109U (en) | Steel strand connector | |
| CN201289991Y (en) | Vibration insulation hammer | |
| CN200943289Y (en) | Prestress FRP tendon extrusion type anchorage | |
| CN202391018U (en) | Connector between steel strand and finished deformed bar | |
| CN104690665A (en) | Double-layer jig for fatigue elongation test of ordinary steel bar and prestressed steel bar, as well as mounting technique for double-layer jig | |
| CN102561599A (en) | Connector of steel stranded wires and finished twisted steel | |
| CN203393623U (en) | Novel steel strand tensioning device | |
| CN201972410U (en) | Integrated tool anchor | |
| CN201567677U (en) | Stretching device for prestress applying bolt for cable membrane structure | |
| CN201258934Y (en) | High elastic force spring | |
| CN201717578U (en) | Wedge-shaped insulation strain clamp for overhead distribution circuit | |
| CN201459718U (en) | Flexible pull rod for construction bearing platform | |
| CN202123568U (en) | Depth-adjustable limiting plate used for high speed rail construction | |
| CN202688875U (en) | Bending restrictor for bridge stay cable | |
| CN203050118U (en) | Easily-assembling type discharging platform steel wire rope pulling ring | |
| CN201272656Y (en) | Anti-dropping clamp plate | |
| CN102477787A (en) | Anchor device for post-tensioned prestressed fiber reinforced polymeric material rib applied to civil engineering | |
| CN201810327U (en) | Steel strand anchor rod of extruding anchor with external threads | |
| CN201539103U (en) | Detachable inner-clamping jack |
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: 20091111 Termination date: 20150115 |
|
| EXPY | Termination of patent right or utility model |