CN106812252A - The anti-skidding prestressing force pull end anchorage of one kind sealing - Google Patents
The anti-skidding prestressing force pull end anchorage of one kind sealing Download PDFInfo
- Publication number
- CN106812252A CN106812252A CN201510858591.0A CN201510858591A CN106812252A CN 106812252 A CN106812252 A CN 106812252A CN 201510858591 A CN201510858591 A CN 201510858591A CN 106812252 A CN106812252 A CN 106812252A
- Authority
- CN
- China
- Prior art keywords
- seal closure
- work
- clip sheet
- skidding
- anchorage
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The anti-skidding prestressing force pull end anchorage of one kind sealing, including seal closure, anti-slip spring, work clip sheet, work anchor circle, anchor backing plate, spiral bar, steel strand wires, bellows, work clip sheet and steel strand wires are placed in the sealing space being made up of seal closure and work anchor circle, anti-slip spring is installed between seal closure and work clip sheet, it is close on work clip sheet through steel strand wires one end of anti-slip spring, the other end is close on seal closure, and seal closure is arranged on work anchor circle by the way of threaded connection.Can obtain better seal effect using anchorage disclosed in this invention, effectively prevent anchorage in use work clip sheet occur loosening cause steel strand wires produce stripped thread.
Description
Technical field
The present invention relates to engineering prestress tensioning equipment technical field, more particularly to a kind of anti-skidding prestressing force pull end anchorage of sealing.
Background technology
Prestressing technique refer to when a component is not yet installed and use before, the position that may be opened presses in advance after it receives external force, promotees its and produces compressive pre-stress, to offset the tension produced by external force effect.In civil engineering construction, because steel wire or steel strand wires have tensile strength higher, in order to play effect of the high strength cast iron in reinforced concrete structure, it is necessary to be previously applied prestressing force to reinforcing bar in component or structure.Prestressed concrete is exactly before structure bears load, artificially introduce internal stress in concrete or armored concrete in advance, to offset the stress produced under maneuvering load, so that concrete component does not ftracture, postpones cracking or reduces the width of crack occurrence under maneuvering load effect.Various buildings and reinforcing engineering field are widely used at present, and have obtained good effect.
The building fields such as highway bridge are the most widely used places of prestressing technique.In production practices, the steel strand tension in prestressed component first has to a steel strand wires head and is coupled together with tensioning machinery, and common connected mode is anchorage method.In some unique constructions, it is ensured that the normal of anchorage is used, anchorage installation and the normalization using process should be ensured, also require that anchorage there will be rational structure, so that cooperation good between each part of anchorage, has reached the prestressed purpose of applying.
But, with the development of prestressing technique, during civil construction, the requirement more and more higher to prestressed anchor.All there is a certain degree of shortcoming in current prestressing force pull end anchorage.Traditional prestressed anchor can produce the phenomenon that gross distortion and steel strand wires are inside contracted in stretching process, and so as to cause because producing slip without completely attaching between anchor circle and intermediate plate, this phenomenon is depositing more obvious in the case of vibrations.The generation of stripped thread phenomenon will make to connect insecure between each part of anchorage, cause the prestress for applying well below design prestress value, seriously reduce the service efficiency of anchorage.
Additionally, traditional anchorage seal closure is typically all on anchor electroplax, and using bolt fixed installation.But because anchor plate is typically all casting, its surface is very coarse, cannot typically reach the effect of sealing.The major way for solving this problem is exactly that the anchor plate after casting is machined out, and machining will cause the cost of anchorage to increase.In addition, causing that the volume of seal closure increases using the sealing means that bolt is fixed, in the case of stayed anchor hole is less, it is unfavorable for the installation and removal of seal closure.Therefore, it is badly in need of a kind of new prestressing force pull end anchoring system, steel strand wires produce the phenomenon of stripped thread in use to prevent anchorage, and reduce the volume of seal closure, reduce reinforcement cost, improve the control accuracy and service efficiency of stretch-draw anchor.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, a kind of anti-skidding prestressing force pull end anchorage of sealing is provided, with prevent anchorage in use steel strand wires produce stripped thread phenomenon, and reduce the volume of seal closure, reduce reinforcement cost, the control accuracy and service efficiency of stretch-draw anchor are improved, the prestressed purpose of setting is applied to prestressed component so as to reach.
The present invention reaches by following technical solution:
The anti-skidding prestressing force pull end anchorage of one kind sealing, including seal closure, anti-slip spring, work clip sheet, work anchor circle, anchor backing plate, spiral bar, steel strand wires, bellows, work clip sheet and steel strand wires are placed in the sealing space being made up of seal closure and work anchor circle, and anti-slip spring is provided between seal closure and work clip sheet.
It is close on work clip sheet through steel strand wires one end of anti-slip spring, the other end is close on seal closure, seal closure is arranged on work anchor circle by the way of threaded connection, and the seal assembly composition sealing structure of seal closure and its auxiliary, work anchor circle is arranged on anchor backing plate.
Further, seal closure is casting, and surface scribbles protective paint, and standard female is formed with seal closure port.Seal closure is a kind of cylindrical seal cover of casting, and inside is provided with cavity, and its surface and inside are provided with the fillet that smoothly transits, and the wall thickness of seal closure can be chosen according to specific use condition.
Further, anti-slip spring is made up of carbon spring steel wires, and steel wire diameter is 5~10mm, the big end external diameter of the external diameter less than work clip sheet of spring.
Further, work anchor circle left end is formed with standard external, and the working depth of screw thread is 20~100mm.The bellmouth that cone angle is is formed with inside work anchor circle, bellmouth left end is the straight hole of diameter 17.5mm, and is communicated with the small end of bellmouth.
Further, anchor backing plate is a kind of circular tower shape backing plate, and with certain taper, its taper is together decided on by backing plate end diameter and outside diameter.Anchor plate inner hollow, the uniform wall thickness of backing plate, profile is with least two-layer boss rank.The positioning of anchor circle and installation for convenience, is provided with the circular pit that depth is 3~5mm, the diameter 5~10mm big compared with anchor circle of circular groove on the large end face of circular anchor backing plate.
The present invention uses above scheme, has the characteristics that：Relative to currently existing scheme, the present invention is improved the structure of seal closure, and present threaded connection is changed to by original bolt connection, and O-ring seal, sealing gasket or seal grease are provided between seal closure and work anchor circle, for ensureing sealing effectiveness.Additionally, being provided with anti-slip spring between seal closure and work clip sheet, to prevent anchorage, loosening occurs in work clip sheet in use, steel strand wires is produced the phenomenon of stripped thread.The improvement can significantly improve the control accuracy and service efficiency for improving stretch-draw anchor, strengthen the sealing effectiveness of seal closure, reduce processing cost.
Brief description of the drawings
Fig. 1 is a kind of anti-skidding prestressing force pull end anchorage of sealing；
In figure：1st, seal closure；2nd, anti-slip spring；3rd, work clip sheet；4th, work anchor circle；5th, anchor backing plate；6th, spiral bar；7th, steel strand wires；8th, bellows.
Specific embodiment
With reference to embodiment and accompanying drawing, detailed description further, but embodiments of the present invention not limited to this are made to the present invention.
As shown in Figure 1, the present invention is a kind of anti-skidding prestressing force pull end anchorage of sealing, including seal closure 1, anti-slip spring 2, work clip sheet 3, work anchor circle 4, anchor backing plate 5, spiral bar 6, steel strand wires 7, bellows 8, work clip sheet 3 and steel strand wires 7 are placed in the sealing space being made up of seal closure 1 and work anchor circle 4, , anti-slip spring 2 is provided between seal closure 1 and filing appliance 3, it is close on work clip sheet 3 through steel strand wires 7 one end of anti-slip spring 2, the other end is close on seal closure 1, seal closure 1 is arranged on work anchor circle 4 by the way of threaded connection, the seal assembly composition sealing structure of seal closure 1 and its auxiliary, work anchor circle 4 is arranged on anchor backing plate 5.
Seal closure 1 is a kind of cylindrical seal cover of casting, and inside is provided with cavity, and its surface and inside are provided with the fillet that smoothly transits, and wall thickness can be chosen according to specific use condition, and surface scribbles protective paint, and standard female is formed with port.Anti-slip spring 2 is a kind of standard spring, is made up of carbon spring steel wires, and steel wire diameter is 5~10mm, the big end external diameter of the external diameter less than work clip sheet of spring.The left end of work anchor circle 4 is formed with common standard external screw thread, and the working depth of screw thread is 20~100mm, and inside is formed with the bellmouth that cone angle is, bellmouth left end is the straight hole of diameter 17.5mm, and is communicated with the small end of bellmouth.Anchor backing plate 5 is a kind of circular tower shape backing plate, and with certain taper, its taper is together decided on by backing plate end diameter and outside diameter.Anchor plate inner hollow, the uniform wall thickness of backing plate, profile is with least two-layer boss rank.The positioning of anchor circle and installation for convenience, is provided with the circular pit that depth is 3~5mm, the diameter 5~10mm big compared with anchor circle of circular pit on the large end face of circular anchor backing plate.Mounting hole and grout hole are respectively equipped with large end face, for fixing anchorage and to pouring into concrete inside engineering structure.
When using, steel strand wires 7 are penetrated in bellows 8, and in the small end of anchor backing plate 5, anchor backing plate right side port loads spiral bar 6, and work anchor circle 4 is arranged in the circular pit of anchor backing plate 5 to ensure centering.Steel strand wires 7 are clamped with work clip sheet 3 to be placed in the bellmouth of work anchor circle 4.After completing the tensioning of anchorage using jack, the redundance of steel strand wires is cut using abrasive wheel cutting machine, anti-slip spring 2 is inserted at steel strand wires 7, and is close to work clip sheet 3 and held greatly.Seal closure 1 is finally installed, O-ring seal, sealing gasket or seal grease are provided between seal closure and anchor circle.Seal closure 1 is arranged on work anchor circle 4 by the way of threaded connection, ensures that anti-slip spring is completely attached to the inner bottom surface of seal closure 1 after installation.The reasonable connection and cooperation of each part more than, make it after the prestressing force for applying setting to bridge, it is to avoid anchor deformation and steel strand wires inside contract the stripped thread phenomenon for causing, while strengthening the sealing effectiveness of seal closure, improve the control accuracy and service efficiency of stretch-draw anchor.
Other unspecified parts are prior art.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, can in other specific forms realize the present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by appended claims rather than described above, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Claims (5)
1. it is a kind of to seal anti-skidding prestressing force pull end anchorage, mainly including seal closure（1）, anti-slip spring（2）, work clip sheet（3）, work anchor circle（4）And steel strand wires（7）, it is characterised in that：Work clip sheet（3）And steel strand wires（7）It is placed on by seal closure（1）With work anchor circle（4）In the sealing space for being constituted, seal closure（1）And work clip sheet（3）Between anti-slip spring is installed（2）.
2. anti-skidding prestressing force pull end anchorage is sealed as claimed in claim 1, it is characterised in that：The seal closure（1）It is casting, surface scribbles protective paint, standard female is formed with seal closure port.
3. anti-skidding prestressing force pull end anchorage is sealed as claimed in claim 1, it is characterised in that：The work anchor circle（4）Left end is formed with standard external, and the working depth of screw thread is 20~100mm.
4. anti-skidding prestressing force pull end anchorage is sealed as claimed in claim 1, it is characterised in that：The anti-slip spring（2）It is made up of carbon spring steel wires, steel wire diameter is 5~10mm.
5. anti-skidding prestressing force pull end anchorage is sealed as claimed in claim 1, it is characterised in that：The anti-slip spring（2）External diameter be less than work clip sheet（3）Big end external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858591.0A CN106812252A (en) | 2015-12-01 | 2015-12-01 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858591.0A CN106812252A (en) | 2015-12-01 | 2015-12-01 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106812252A true CN106812252A (en) | 2017-06-09 |
Family
ID=59155620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510858591.0A Pending CN106812252A (en) | 2015-12-01 | 2015-12-01 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812252A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211667A (en) * | 2018-09-13 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of safety protection jacket of the steel strand relaxation test machine |
| CN112211349A (en) * | 2020-09-10 | 2021-01-12 | 湖南联智智能科技有限公司 | Steel strand anti-slip wire tool for pre-tensioning construction |
| CN114607100A (en) * | 2022-03-25 | 2022-06-10 | 襄阳中铁宏吉工程技术有限公司 | Anchor for stretching external prestressed cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443076Y (en) * | 2000-09-04 | 2001-08-15 | 柳州市建筑机械总厂 | Prestress external anchoring device |
| CN2693854Y (en) * | 2004-03-10 | 2005-04-20 | 江阴法尔胜毅强工程材料有限公司 | Fixed end anchorage device for prestressed structure |
| WO2009042241A1 (en) * | 2007-09-25 | 2009-04-02 | Sorkin Felix L | Apparatus for preventing shrinkage of a sheathing over a tendon |
| CN201756763U (en) * | 2010-08-23 | 2011-03-09 | 肖聪 | Anchorage device with threaded sealing structure |
| US8069624B1 (en) * | 2007-10-17 | 2011-12-06 | Sorkin Felix L | Pocketformer assembly for a post-tension anchor system |
| CN102979253A (en) * | 2012-12-13 | 2013-03-20 | 大连民族学院 | Anchor system for fixing steel strand in pre-stressed structure |
| CN205171834U (en) * | 2015-12-01 | 2016-04-20 | 衡阳市新德力预应力有限公司 | Sealed anti -skidding prestressing force stretch -draw end ground tackle |
-
2015
- 2015-12-01 CN CN201510858591.0A patent/CN106812252A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443076Y (en) * | 2000-09-04 | 2001-08-15 | 柳州市建筑机械总厂 | Prestress external anchoring device |
| CN2693854Y (en) * | 2004-03-10 | 2005-04-20 | 江阴法尔胜毅强工程材料有限公司 | Fixed end anchorage device for prestressed structure |
| WO2009042241A1 (en) * | 2007-09-25 | 2009-04-02 | Sorkin Felix L | Apparatus for preventing shrinkage of a sheathing over a tendon |
| US8069624B1 (en) * | 2007-10-17 | 2011-12-06 | Sorkin Felix L | Pocketformer assembly for a post-tension anchor system |
| CN201756763U (en) * | 2010-08-23 | 2011-03-09 | 肖聪 | Anchorage device with threaded sealing structure |
| CN102979253A (en) * | 2012-12-13 | 2013-03-20 | 大连民族学院 | Anchor system for fixing steel strand in pre-stressed structure |
| CN205171834U (en) * | 2015-12-01 | 2016-04-20 | 衡阳市新德力预应力有限公司 | Sealed anti -skidding prestressing force stretch -draw end ground tackle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211667A (en) * | 2018-09-13 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of safety protection jacket of the steel strand relaxation test machine |
| CN112211349A (en) * | 2020-09-10 | 2021-01-12 | 湖南联智智能科技有限公司 | Steel strand anti-slip wire tool for pre-tensioning construction |
| CN114607100A (en) * | 2022-03-25 | 2022-06-10 | 襄阳中铁宏吉工程技术有限公司 | Anchor for stretching external prestressed cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103510640B (en) | A kind of fabricated shear wall and assembly method thereof | |
| CN102296813B (en) | A kind of construction method of steel kind design and steel column base structure thereof | |
| CN204098065U (en) | A kind of can the precast assembly pipe gallery of stretch-draw in body | |
| CN204491425U (en) | A kind of external prestressing strengthening structure of T-shaped bridge diaphragm | |
| CN204546759U (en) | Prestressed concrete mortar leakage prevention device | |
| CN105666688B (en) | A kind of prefabricated pile, pile body and production method | |
| CN106812252A (en) | The anti-skidding prestressing force pull end anchorage of one kind sealing | |
| CN205421238U (en) | Prefabricated pile body | |
| CN205171834U (en) | Sealed anti -skidding prestressing force stretch -draw end ground tackle | |
| CN202622987U (en) | Tensioning tool for simultaneously manufacturing a plurality of prestressed concrete pipe piles | |
| CN204199543U (en) | The full grouting connecting reinforcement sleeve of the variable cross section realized by technique for rolling | |
| CN204054331U (en) | A kind of regular screw threads steel tensioning equipment | |
| CN110566230A (en) | externally-hung channel system and construction method thereof | |
| CN203579870U (en) | Prestress combined support pile steel mold structure | |
| CN207092104U (en) | A kind of steel-pipe pile attachment structure | |
| CN205171839U (en) | Reinforcing bar grout connecting sleeve | |
| CN212583335U (en) | Quick repairing and reinforcing device for cement pole | |
| CN204960318U (en) | Reinforcement type exterior angle hoop template device | |
| CN211172078U (en) | Assembled waterproof lifting hook | |
| CN211524098U (en) | Special hole plugging device for aluminum alloy template | |
| CN204418379U (en) | A kind of prefabricated component syndeton | |
| CN101649651B (en) | Combined connection component of rigidity-controllable section steel and concrete, and use method thereof | |
| CN205591545U (en) | Instrument is consolidated to log template | |
| CN204252171U (en) | The rubber fastening band at basement shrinkage joint installs fixing special tool | |
| CN203230710U (en) | Bolt sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170609 |
|
| RJ01 | Rejection of invention patent application after publication |