CN205077877U - Unbonded prestressed tendon repeated tensioning device - Google Patents
Unbonded prestressed tendon repeated tensioning device Download PDFInfo
- Publication number
- CN205077877U CN205077877U CN201520852117.2U CN201520852117U CN205077877U CN 205077877 U CN205077877 U CN 205077877U CN 201520852117 U CN201520852117 U CN 201520852117U CN 205077877 U CN205077877 U CN 205077877U
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- connector
- base
- draw
- overcoat
- 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
- 210000002435 tendon Anatomy 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a repeated tensioner of unbonded prestressed tendons, including overcoat base, overcoat, endotheca base, endotheca and connector, the utility model discloses simple structure, connector one end is connected and is reserved the steel strand wires, the extension steel strand wires are connected to the other end, the overcoat supports the jack with overcoat base when being used for stretch-draw, make the hydraulic jack of stretch-draw exert tension to the extension steel strand wires and reserve the steel strand wires in order to stretch-draw, the jacking force of stretch-draw hydraulic jack to original work clamping piece when endotheca and endotheca base are used for transmitting the roof pressure, each part collaborative work carries out the secondary stretch-draw to the too short reservation steel strand wires, has saved the material simultaneously, has improved work efficiency, restores after the earthquake, consolidates to unbonded prestressed frame and plays positive impetus; the tension device is internally provided with the connector, and has the advantages of short working length and total length of the tension device compared with other tension devices; the inner sleeve and the outer sleeve of the tensioner are clearly distributed, the dismounting and the mounting are simple, the operation is convenient, and the tensioner can be repeatedly used.
Description
Technical field
The utility model relates to concrete building material field, is specifically related to a kind of unbonded prestressing tendon repeat stretch-draw device.
Background technology
Domestic and international in decades the research of a large amount of anti-seismic performances and Seismic Design Method is carried out to prestressed structure, achieved abundant achievement.Stress frame is divided into soap-free emulsion polymeization and has bonding two kinds, and soap-free emulsion polymeization is exactly that steel strand and concrete are not bonded together, and can be used in shake post-reinforcing and carry out two times tensioning; Bonding is had to be exactly that after stretch-draw, steel strand with concrete binding together, cannot stretch-draw again after shake.Unbonded prestressing tendon in soap-free emulsion polymeization stress frame is when stretch-draw knot anchorage, common way retains the long reserved steel strand of 40-50mm outward at ground tackle cap, add height about the 12mm of ground tackle cap, the operated overall length of these reserved steel strand is between 50-62mm, and the job requirement length of stretch-draw hydraulic jack is more than 200mm, so do not meet stretch-draw hydraulic jack carries out direct stretch-draw condition to it, for carrying out the requirement of repeat stretch-draw, we devise specially for the tensioner of unbonded prestressing tendon repeat stretch-draw, to meet the requirement of jack pair steel strand repeat stretch-draw.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of unbonded prestressing tendon repeat stretch-draw device, solves the operated overall length that prior art reserves steel strand and does not meet stretch-draw hydraulic jack carries out direct stretch-draw problem to it.
The utility model is achieved through the following technical solutions:
A kind of unbonded prestressing tendon repeat stretch-draw device, comprise housing base, overcoat, inner sleeve base, inner sleeve and connector, the left end of described housing base is provided with ground tackle slot to make way, right-hand member is provided with cover body insertion groove, dividing plate is provided with between ground tackle slot to make way and cover body insertion groove, this dividing plate is provided with housing base through hole, the left end of described inner sleeve is provided with connector draw-in groove, its right-hand member is provided with inner sleeve boss, inner sleeve through hole is provided with in this inner sleeve boss, the left end of described overcoat is provided with inner sleeve draw-in groove, its right-hand member is provided with overcoat boss, overcoat through hole is provided with in this overcoat boss, described housing base is stuck on ground tackle, reserved steel strand are through housing base through hole, after putting inner sleeve base, by connector, it is connected with lengthening steel strand, described inner sleeve is stuck on connector, put in described overcoat is placed on, its left end is threaded with cover body insertion groove, lengthen the right-hand member of steel strand through inner sleeve through hole.
The further improvement project of the utility model is, described connector comprises connector anchor, connector intermediate plate and connector jacket, the two ends of described connector jacket are provided with screwed hole, its two ends are threaded with connector anchor respectively, wherein, be positioned at the connector anchor of left end by the reserved steel strand of connector intermediate plate clamping, the connector anchor being positioned at right-hand member lengthens steel strand by the clamping of connector intermediate plate.
The utility model further improvement project is, the left end of described inner sleeve base is provided with base boss, its right-hand member is provided with base draw-in groove, base boss is connected by the second boss with base draw-in groove, this second boss is connected with spring, described base boss is provided with base plate through holes, and the length of described inner sleeve base is 27mm.
The utility model further improvement project is, described inner sleeve boss is through overcoat through hole, and the length of this inner sleeve boss is 50mm, and the total length of described inner sleeve is 303mm.
The utility model further improvement project is, the length of described overcoat boss is 20mm, and the total length of described overcoat is 330mm, and the total length of described housing base is 88mm, and wherein, the degree of depth of ground tackle slot to make way is 48mm.
Compared with prior art, tool has the following advantages the utility model:
1, the utility model structure is simple, connector one end connects reserved steel strand, the other end connects lengthening steel strand, overcoat and housing base are for support jack during stretch-draw, make stretch-draw hydraulic jack can apply tension force to lengthening steel strand and reserve steel strand with stretch-draw, inner sleeve and inner sleeve base for transmit push up press time stretch-draw hydraulic jack power is shored to original work clip sheet, various piece collaborative work, two times tensioning is carried out to too short reserved steel strand, save material simultaneously, improve operating efficiency, to prestressing without bondn framework shake after repair, reinforce and play positive impetus,
2, establish connector in this tensioner, the tensioner with other compares the advantage with the total length of the short and tensioner of active length itself;
3, the distribution of this tensioner inner-outer sleeve is clear and definite, removes and installs simple, convenient operation, reusable.
Below in conjunction with drawings and Examples, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of housing base, overcoat, inner sleeve base and inner sleeve.
Fig. 3 is the schematic diagram of connector.
Detailed description of the invention
As Fig. 1, shown in Fig. 2 and Fig. 3, the utility model comprises housing base 1, overcoat 4, inner sleeve base 3, inner sleeve 5 and connector 01, the left end of described housing base 1 is provided with ground tackle slot to make way 11, right-hand member is provided with cover body insertion groove 13, dividing plate is provided with between ground tackle slot to make way 11 and cover body insertion groove 13, this dividing plate is provided with housing base through hole 12, the left end of described inner sleeve 5 is provided with connector draw-in groove 51, its right-hand member is provided with inner sleeve boss 52, inner sleeve through hole 53 is provided with in this inner sleeve boss 52, the left end of described overcoat 4 is provided with inner sleeve draw-in groove 41, its right-hand member is provided with overcoat boss 42, overcoat through hole 43 is provided with in this overcoat boss 42, described housing base 1 is stuck on ground tackle 102, reserved steel strand 10 are through housing base through hole 12, after putting inner sleeve base 3, by connector 01, it is connected with lengthening steel strand 6, described inner sleeve 5 is stuck on connector 01, described overcoat 4 is placed in inner sleeve 5, its left end is threaded with cover body insertion groove 13, lengthen the right-hand member of steel strand 6 through inner sleeve through hole 53, described connector 01 comprises connector anchor 7, connector intermediate plate 8 and connector jacket 9, the two ends of described connector jacket 9 are provided with screwed hole, its two ends are threaded with connector anchor 7 respectively, wherein, the connector anchor 7 being positioned at left end clamps reserved steel strand 10 by connector intermediate plate 8, the connector anchor 7 being positioned at right-hand member is clamped by connector intermediate plate 8 and lengthens steel strand 6, the left end of described inner sleeve base 3 is provided with base boss 31, its right-hand member is provided with base draw-in groove 34, base boss 31 is connected by the second boss 32 with base draw-in groove 34, this second boss 32 is connected with spring 2, described base boss 31 is provided with base plate through holes 33, the length of described inner sleeve base 3 is 27mm, described inner sleeve boss 52 is through overcoat through hole 43, the length of this inner sleeve boss 52 is 50mm, the total length of described inner sleeve 5 is 303mm, the length of described overcoat boss 42 is 20mm, the total length of described overcoat 4 is 330mm, the total length of described housing base 1 is 88mm, wherein, the degree of depth of ground tackle slot to make way 11 is 48mm.
After unloading the ground tackle cap of original ground tackle 102, the housing base 1 of unbonded prestressing tendon repeat stretch-draw device and inner sleeve base 3 are placed on reserved steel strand 10 successively, housing base 1 is positioned by anchor tackle bearing plate 103 and original ground tackle 102, lengthening steel strand 6 are connected with reserved steel strand 10 connector 01 that tensioner is built-in, put inner sleeve 5 successively again, overcoat 4, the overcoat boss 42 that stretch-draw hydraulic jack withstands overcoat 4 right-hand member applies tension force to lengthening steel strand 6 and reserves steel strand 10 with stretch-draw, after stretch-draw, stretch-draw hydraulic jack carries out top pressure, inner sleeve and inner sleeve base shore power for transmitting stretch-draw hydraulic jack to original work clip sheet 101, original work clip sheet 101 is terminated by top top pressure after correct position, unload stretch-draw hydraulic jack and tensioner, tighten ground tackle cap, stretch-draw is complete.Various piece collaborative work, carries out two times tensioning to too short reserved steel strand, saves material simultaneously, improves operating efficiency, to prestressing without bondn framework shake repair afterwards, reinforce and play positive impetus; Establish connector 01 in this tensioner, the tensioner with other compares the advantage with the total length of the short and tensioner of active length itself; The distribution of this tensioner inner-outer sleeve is clear and definite, removes and installs simple, convenient operation, reusable.
It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a unbonded prestressing tendon repeat stretch-draw device, it is characterized in that: comprise housing base (1), overcoat (4), inner sleeve base (3), inner sleeve (5) and connector (01), the left end of described housing base (1) is provided with ground tackle slot to make way (11), right-hand member is provided with cover body insertion groove (13), dividing plate is provided with between ground tackle slot to make way (11) and cover body insertion groove (13), this dividing plate is provided with housing base through hole (12), the left end of described inner sleeve (5) is provided with connector draw-in groove (51), its right-hand member is provided with inner sleeve boss (52), inner sleeve through hole (53) is provided with in this inner sleeve boss (52), the left end of described overcoat (4) is provided with inner sleeve draw-in groove (41), its right-hand member is provided with overcoat boss (42), overcoat through hole (43) is provided with in this overcoat boss (42), described housing base (1) is stuck on ground tackle (102), reserved steel strand (10) are through housing base through hole (12), after putting inner sleeve base (3), by connector (01), it is connected with lengthening steel strand (6), described inner sleeve (5) is stuck on connector (01), described overcoat (4) is placed in inner sleeve (5), its left end is threaded with cover body insertion groove (13), lengthen the right-hand member of steel strand (6) through inner sleeve through hole (53).
2. a kind of unbonded prestressing tendon repeat stretch-draw device according to claim 1, it is characterized in that: described connector (01) comprises connector anchor (7), connector intermediate plate (8) and connector jacket (9), the two ends of described connector jacket (9) are provided with screwed hole, its two ends are threaded with connector anchor (7) respectively, wherein, be positioned at the connector anchor (7) of left end by the reserved steel strand (10) of connector intermediate plate (8) clamping, the connector anchor (7) being positioned at right-hand member lengthens steel strand (6) by connector intermediate plate (8) clamping.
3. a kind of unbonded prestressing tendon repeat stretch-draw device according to claim 1, it is characterized in that: the left end of described inner sleeve base (3) is provided with base boss (31), its right-hand member is provided with base draw-in groove (34), base boss (31) is connected by the second boss (32) with base draw-in groove (34), this second boss (32) is connected with spring (2), described base boss (31) is provided with base plate through holes (33), and the length of described inner sleeve base (3) is 27mm.
4. a kind of unbonded prestressing tendon repeat stretch-draw device according to claim 1, is characterized in that: described inner sleeve boss (52) is through overcoat through hole (43), and the length of this inner sleeve boss (52) is 50mm, and the total length of described inner sleeve (5) is 303mm.
5. a kind of unbonded prestressing tendon repeat stretch-draw device according to claim 1, it is characterized in that: the length of described overcoat boss (42) is 20mm, the total length of described overcoat (4) is 330mm, the total length of described housing base (1) is 88mm, wherein, the degree of depth of ground tackle slot to make way (11) is 48mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852117.2U CN205077877U (en) | 2015-10-30 | 2015-10-30 | Unbonded prestressed tendon repeated tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852117.2U CN205077877U (en) | 2015-10-30 | 2015-10-30 | Unbonded prestressed tendon repeated tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205077877U true CN205077877U (en) | 2016-03-09 |
Family
ID=55430291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520852117.2U Expired - Fee Related CN205077877U (en) | 2015-10-30 | 2015-10-30 | Unbonded prestressed tendon repeated tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205077877U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224319A (en) * | 2016-08-26 | 2016-12-14 | 扬州市振东电力器材有限公司 | By-pass type hydraulic line tightening oil cylinder |
| CN107482533A (en) * | 2017-08-18 | 2017-12-15 | 河南送变电建设有限公司 | A kind of transmission line high-altitude cable type hydraulic line tightening device |
| CN107829389A (en) * | 2017-11-08 | 2018-03-23 | 王筱文 | A kind of attachment means of wirerope |
| CN108360822A (en) * | 2018-03-19 | 2018-08-03 | 山东省建筑科学研究院 | A kind of stress mornitoring and tensioning clamping device |
| CN109653531A (en) * | 2019-01-24 | 2019-04-19 | 中冶建筑研究总院有限公司 | A kind of external prestressing steel strand connector and mating tensioning equipment |
| CN112878202A (en) * | 2021-01-25 | 2021-06-01 | 中国铁建港航局集团有限公司 | Steel strand releasing and tensioning auxiliary tool and prestressed steel strand releasing and tensioning method |
-
2015
- 2015-10-30 CN CN201520852117.2U patent/CN205077877U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224319A (en) * | 2016-08-26 | 2016-12-14 | 扬州市振东电力器材有限公司 | By-pass type hydraulic line tightening oil cylinder |
| CN107482533A (en) * | 2017-08-18 | 2017-12-15 | 河南送变电建设有限公司 | A kind of transmission line high-altitude cable type hydraulic line tightening device |
| CN107829389A (en) * | 2017-11-08 | 2018-03-23 | 王筱文 | A kind of attachment means of wirerope |
| CN108360822A (en) * | 2018-03-19 | 2018-08-03 | 山东省建筑科学研究院 | A kind of stress mornitoring and tensioning clamping device |
| CN109653531A (en) * | 2019-01-24 | 2019-04-19 | 中冶建筑研究总院有限公司 | A kind of external prestressing steel strand connector and mating tensioning equipment |
| CN109653531B (en) * | 2019-01-24 | 2024-02-09 | 中冶建筑研究总院有限公司 | External prestress steel strand connector and matched tensioning device |
| CN112878202A (en) * | 2021-01-25 | 2021-06-01 | 中国铁建港航局集团有限公司 | Steel strand releasing and tensioning auxiliary tool and prestressed steel strand releasing and tensioning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205077877U (en) | Unbonded prestressed tendon repeated tensioning device | |
| CN203769342U (en) | Rigid self-locking pre-stress carbon fiber plate anchoring system | |
| CN205123185U (en) | Non -maintaining insulator wire fixation clamp | |
| CN202323717U (en) | Cantilever type pre-stress hoop and special tensioning device thereof | |
| CN102926551B (en) | Device and method for reinforcing flexural concrete member | |
| CN106401196A (en) | Steel strand tensioning device for pre-stressed anchorage device | |
| CN203097117U (en) | Stretch-draw anchoring device for secondary clamping of pre-stressed sheet | |
| CN103015330A (en) | Steel hoop support system of jacking bridge | |
| CN201190411Y (en) | Wire rope device for auto tightening suspension I-beam | |
| CN205955228U (en) | Prestressing force stretch -draw and anchor of carbon cloth | |
| CN203007855U (en) | Stretch-draw anchoring system of pre-stress fiber composite plate | |
| CN201024591Y (en) | Stretching compensation bracing strut device | |
| CN204174840U (en) | The locking ground tackle of prestress anchoraging | |
| 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 | |
| CN207525618U (en) | A kind of prestress anchorage system with compression spring | |
| CN104005410B (en) | A kind of stretching and anchoring device based on prestressing without bondn reinforced earth technology | |
| CN202644401U (en) | Omnipotent prestress stretch-draw connecting structure for finish-rolling screw-thread steel | |
| CN104807622A (en) | Testing method for checking bearing force of cover beam hoop | |
| CN204781951U (en) | Cantilever beam mould with circulating anchor assembly | |
| CN108103946A (en) | Tensioning device applied to small space construction | |
| CN211818103U (en) | Construction engineering prestressed concrete construction equipment | |
| CN203486838U (en) | Prestress tension jack | |
| CN203626870U (en) | Squirrel cage anchor cable for mine | |
| CN203008401U (en) | Device for reinforcing flexural concrete member | |
| CN107227851A (en) | A kind of detachable anchorage device for prestressing force carbon plate tensioning |
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: 20160309 Termination date: 20161030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |