CN104929317A - Low-retracting prestressed strand anchor and connector combination - Google Patents
Low-retracting prestressed strand anchor and connector combination Download PDFInfo
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- CN104929317A CN104929317A CN201510357320.7A CN201510357320A CN104929317A CN 104929317 A CN104929317 A CN 104929317A CN 201510357320 A CN201510357320 A CN 201510357320A CN 104929317 A CN104929317 A CN 104929317A
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Abstract
The invention discloses a low-retracting prestressed strand anchor and connector combination, comprising an upper strand anchoring end ancho unit and a lower strand anchoring end anchor unit. The upper strand anchoring end anchor unit comprises a strand guide disposed within a first tube, an anchoring end clip anchor and a compression spring. The lower strand anchoring end anchor unit comprises a tension end clip anchor disposed in a second tube; the bottom end of the second tube is provided with a back-filling regulator. A connector is provided between the two anchor units; two ends of the compression spring are in tight contact with the ends of the anchoring end clip anchor and of the connector. By the use of the combination in the prestress assembly of modular units, retracting prestress loss is low; the combination is suitable for connection of frame columns of steel structure module building units and is reasonable in structural design and reliable to connect; after steel strands are tensioned and anchored with the combination, the upper and lower modular unit frame columns are prestressed into a whole, thus resisting upsetting moment pull generated by lateral wind load or seismic action.
Description
Technical field
The present invention relates to a kind of novel pre-stressed connector, particularly relate to and respectively save chord member end at each frame column top of steel structure module or steel truss presstressed reinforcing steel connector is set, form overall steel framework or steel truss structure by subsection tension and segmentation anchoring.
Background technology
Steel structure module building is by a large amount of cuboid modular unit, by certain link technique, splice the monolithic architecture assembled up and down, each cuboid is called modular unit, and generally wide is the standard width of a room in an old-style house in house, a long depth for house, height is a floor height in house, the hexahedron that modular unit is formed by four frame columns and four, top Vierendeel girder and four, bottom Vierendeel girder, and have on having top board and under have base plate, surrounding has enclosure wall or partition wall.During modular unit assembling, upper layer module unit framework post and lower module unit framework should connect into entirety, but because there is wall at each modular unit four sides, be difficult to carry out being welded to connect between frame column, the link technique of current building module generally adopts plug-in type feather joint or surface welding etc., and the former connected mode frame column can not bear pulling force, and the latter cannot bear larger pulling force, all do not meet the related request of China's building aseismicity specification, must improve.Length due to beam in building a bridge is larger, the strand tapered anchorage connector that it adopts is general and be not suitable for steel structure module building, because the frame column of modular unit is shorter, as adopted, the loss of prestress of strand tapered anchorage retraction is comparatively large, can not meet steel structure module building unit assembling requirement.In addition, because steel strand self are flexible, when upper layer module unit stacks installation toward lower floor's modular unit, the empty steel pipe column of upper layer module unit is difficult to be inserted in the steel strand that lower module unit steel pipe column capital throws away, and there is larger Hoisting Security hidden danger,
Summary of the invention
For the deficiencies in the prior art, the present invention have developed low retraction prestress wire ground tackle and connection-device's combination body, the present invention's loss of prestress that bounces back is little, be applicable to frame column compared with steel structure module building, its reasonable in design, simple, connect reliable, utilize the present invention by after steel strand tension anchoring, make the frame column of upper and lower mould module unit in advance pressurized form entirety, the pulling force of the overturning moment that lateral wind load or geological process produce can be resisted.
In order to solve the problems of the technologies described above, a kind of low retraction prestress wire ground tackle of the present invention and connection-device's combination body, comprise upper steel twisted wire anchored end anchor and bottom steel strand tension end anchor, described upper steel twisted wire anchored end anchor comprises the first cylindrical shell, is provided with steel strand persuader, anchored end strand tapered anchorage and Compress Spring from top to bottom successively in described first cylindrical shell; Described bottom steel strand tension end anchor comprises the second cylindrical shell, and be provided with stretching end strand tapered anchorage in described second cylindrical shell, the bottom of described second cylindrical shell is provided with the adjuster that returns back to top; Be provided with connector between described upper steel twisted wire anchored end anchor and bottom steel strand tension end anchor, be between described connector with described first cylindrical shell, between described connector with the second cylindrical shell and be threaded; The two ends of described compression spring respectively with the intermediate plate of anchored end strand tapered anchorage and the end face close contact of described connector.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is used in the connection of building module, can upper by neighbouring modular unit, bottom steel strand couple together reliably, when upper layer module unit is stacked to lower module unit, lower module unit steel pipe column capital need not throw away steel strand, but after stacking end, steel strand can directly be inserted into the connection-device's combination body of lower module unit framework post capital after upper layer module unit framework post pierces into, after steel strand tension anchoring, make the frame column of upper and lower mould module unit in advance pressurized form entirety, to resist the pulling force of the overturning moment of lateral wind load or geological process generation.
Accompanying drawing explanation
Fig. 1 is the present invention's low retraction prestress wire ground tackle and connection-device's combination body structural representation.
In figure:
1-bottom steel strand 2-returns back to top adjuster 3-bottom steel strand tension end anchor
4-connector 5-is threaded 6-upper steel twisted wire anchored end anchor
7-steel strand persuader 8-upper steel twisted wire 9-top steel strand anchoring post tensioning
10-first cylindrical shell 11-anchored end strand tapered anchorage 12-Compress Spring
13-second cylindrical shell 14-stretching end strand tapered anchorage
Detailed description of the invention
Be described in further detail technical solution of the present invention below in conjunction with the drawings and specific embodiments, described specific embodiment only explains the present invention, not in order to limit the present invention.
As shown in Figure 1, the one low retraction prestress wire ground tackle that the present invention proposes and connection-device's combination body, comprise upper steel twisted wire anchored end anchor 6, bottom steel strand tension end anchor 3.Described upper steel twisted wire anchored end anchor 6 comprises the first cylindrical shell 10, is provided with steel strand persuader 7, anchored end strand tapered anchorage 11 and Compress Spring 12 from top to bottom successively in described first cylindrical shell 10.Described bottom steel strand tension end anchor 3 comprises the second cylindrical shell 13, is provided with stretching end strand tapered anchorage 14 in described second cylindrical shell 13, and the bottom of described second cylindrical shell 13 is provided with the adjuster 2 that returns back to top.Connector 4 is provided with, for being threaded between described connector 4 with described first cylindrical shell 10 between described upper steel twisted wire anchored end anchor 6 and bottom steel strand tension end anchor 3; Also for being threaded between described connector 4 with the second cylindrical shell 13.The two ends of described compression spring 12 respectively with the intermediate plate of anchored end strand tapered anchorage 11 and the end face close contact of described connector 4.
The technological process in building module connects of the present invention's low retraction prestress wire ground tackle and connection-device's combination body is as follows: at lower module unit framework abacus welding bottom steel strand tension end anchor 3, by the bottom of the second cylindrical shell 13 be welded on (this step completes at produce in factory) on lower module unit framework abacus → by bottom steel strand 1 from penetrating into the stretching end strand tapered anchorage 14 of bottom steel strand anchoring end anchor 3 in → carry out first time stretch-draw anchor → second time stretch-draw according to designing requirement and redundance → the be threaded connection mounted connector 4 → be threaded connection in 5 installation top steel strand anchoring end anchor 6 → downward modular unit post steel pipes → end of being in the milk of anchoring → excision bottom steel strand 1 after tightening the adjuster 3 that returns back to top bottom the second cylindrical shell 13; Prestressing force assembling between upper and lower adjacent two modular unit post steel pipes → upper steel twisted wire 8 is inserted in anchored end strand tapered anchorage 11 by the steel strand persuader 7 at upper steel twisted wire anchored end anchor 6 top, be incorporated to bottom steel strand 1 to contact, top steel strand anchoring post tensioning 9 → so far, complete in the modular unit post steel pipe of the connection of the twisted wire of upper steel shown in Fig. 18 and bottom steel strand 1 → upwards be in the milk → by that analogy, the prestressing force completing all modular units is assembled.
Wherein, the rank of the steel strand adopted is 1860MPa level or 1960MPa level, according to the different needs of steel strand rank and stretching force, the present invention can: (1) is for stretch-draw and the steel strand being connected two diameters 15.2 (or 15.7); (2) for stretch-draw and the steel strand being connected two diameters 17.8; (3) for ground tackle and the steel strand being connected and fixed end diameter 15.2 (or 15.7) of stretching end 17.8 steel strand; (4) for ground tackle and the steel strand being connected and fixed end diameter 17.8 of stretching end 21.6 steel strand.The unit of above-mentioned diameter dimension is mm.
Steel strand can be single rope and also can be many ropes, and according to many ropes steel strand, then in the present invention, corresponding ground tackle and connector are also many ropes syndeton.Steel strand can adopt alternative materials, as finish rolling high tensile reinforcement (rod iron) also can adopt FRP fiber composite reinforcing material.In order to meet the structural strength of assembly, rigidity and durability, the present invention adopts high-strength steel to make.Assembly profile step restriction of the present invention can be cylinder or prism.The present invention goes for the prestressing force assembling of the various modular units such as square, cuboid, prism, cylinder, cone.
Although invention has been described by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (1)
1. low retraction prestress wire ground tackle and a connection-device's combination body, comprises upper steel twisted wire anchored end anchor (6) and bottom steel strand tension end anchor (3), it is characterized in that,
Described upper steel twisted wire anchored end anchor (6) comprises the first cylindrical shell (10), is provided with steel strand persuader (7), anchored end strand tapered anchorage (11) and Compress Spring (12) in described first cylindrical shell (10) from top to bottom successively;
Described bottom steel strand tension end anchor (3) comprises the second cylindrical shell (13), be provided with stretching end strand tapered anchorage (14) in described second cylindrical shell (13), the bottom of described second cylindrical shell (13) is provided with the adjuster that returns back to top (2);
Be provided with connector (4) between described upper steel twisted wire anchored end anchor (6) and bottom steel strand tension end anchor (3), be between described connector (4) with described first cylindrical shell (10), between described connector (4) with the second cylindrical shell (13) and be threaded;
The two ends of described compression spring (12) respectively with the intermediate plate of anchored end strand tapered anchorage (11) and the end face close contact of described connector (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357320.7A CN104929317A (en) | 2015-06-25 | 2015-06-25 | Low-retracting prestressed strand anchor and connector combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357320.7A CN104929317A (en) | 2015-06-25 | 2015-06-25 | Low-retracting prestressed strand anchor and connector combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104929317A true CN104929317A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357320.7A Pending CN104929317A (en) | 2015-06-25 | 2015-06-25 | Low-retracting prestressed strand anchor and connector combination |
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| CN (1) | CN104929317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425463A (en) * | 2018-02-09 | 2018-08-21 | 柳州欧维姆机械股份有限公司 | A kind of low retraction anchorage of clip type flat and its method for stretching for short beam presstressed reinforcing steel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1609671A1 (en) * | 1966-07-02 | 1972-03-02 | Held & Francke Bauag | Coupling for tendons in prestressed concrete components |
| CN2398477Y (en) * | 1999-05-21 | 2000-09-27 | 柳州欧维姆建筑机械有限公司 | Anchorage cable connecting apparatus |
| US6151850A (en) * | 1999-04-26 | 2000-11-28 | Sorkin; Felix L. | Intermediate anchorage system utilizing splice chuck |
| NL1012499C2 (en) * | 1999-07-02 | 2001-01-03 | Novitec Internat B V | Coupling component for reinforcement rod involves outer rod end cast into concrete and comprises basic part to which is fixed rod end accommodation container |
| EP1191164A1 (en) * | 2000-03-02 | 2002-03-27 | Anderson Technology Corporation | Pc steel stranded wire connection structure and construction method thereof |
| CN1421972A (en) * | 2002-12-25 | 2003-06-04 | 张鹏 | Fast twisted steel cable connector |
| CN2695524Y (en) * | 2004-05-17 | 2005-04-27 | 铁道科学研究院 | Low nervy clamping piece type anchoring device |
-
2015
- 2015-06-25 CN CN201510357320.7A patent/CN104929317A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1609671A1 (en) * | 1966-07-02 | 1972-03-02 | Held & Francke Bauag | Coupling for tendons in prestressed concrete components |
| US6151850A (en) * | 1999-04-26 | 2000-11-28 | Sorkin; Felix L. | Intermediate anchorage system utilizing splice chuck |
| CN2398477Y (en) * | 1999-05-21 | 2000-09-27 | 柳州欧维姆建筑机械有限公司 | Anchorage cable connecting apparatus |
| NL1012499C2 (en) * | 1999-07-02 | 2001-01-03 | Novitec Internat B V | Coupling component for reinforcement rod involves outer rod end cast into concrete and comprises basic part to which is fixed rod end accommodation container |
| EP1191164A1 (en) * | 2000-03-02 | 2002-03-27 | Anderson Technology Corporation | Pc steel stranded wire connection structure and construction method thereof |
| CN1421972A (en) * | 2002-12-25 | 2003-06-04 | 张鹏 | Fast twisted steel cable connector |
| CN2695524Y (en) * | 2004-05-17 | 2005-04-27 | 铁道科学研究院 | Low nervy clamping piece type anchoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425463A (en) * | 2018-02-09 | 2018-08-21 | 柳州欧维姆机械股份有限公司 | A kind of low retraction anchorage of clip type flat and its method for stretching for short beam presstressed reinforcing steel |
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Application publication date: 20150923 |
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