CN106436587B - Loop chain type prestress rope automatic synchronization tensioning system and method - Google Patents
Loop chain type prestress rope automatic synchronization tensioning system and method Download PDFInfo
- Publication number
- CN106436587B CN106436587B CN201610700743.9A CN201610700743A CN106436587B CN 106436587 B CN106436587 B CN 106436587B CN 201610700743 A CN201610700743 A CN 201610700743A CN 106436587 B CN106436587 B CN 106436587B
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- tensioning
- anchor
- teeth nut
- anchor slab
- thread bar
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0237—Increasing or restoring the load-bearing capacity of building construction elements of storey floors
Abstract
The invention discloses a kind of loop chain type prestress rope automatic synchronization tensioning systems, including anchor slab, anchor slab to be fixed on by bar planting in ruggedized construction；More main thread bars are equipped in anchor slab in parallel, main thread bar one end is connected with screw shell, screw shell other end connecting steel wire ropes；After the main thread bar other end passes through the aperture of anchor slab, fixed with anchor band teeth nut；Anchor slab side is equipped with tensioning bracket, after main thread bar penetrates in tensioning bracket, by connecting sleeve auxiliary connection threaded rod, after the deputy thread bar other end is pierced by tensioning bracket, is fixed on tensioning bracket by tensioning band teeth nut respectively；Anchor band teeth nut and tensioning band teeth nut are separately connected driving mechanism.It may be implemented to anchor more wirerope by one piece of anchor slab, improve reinforcing efficiency and effect to existing structure；Synchronous tension and synchronous locking are implemented to all wirerope on anchor slab, avoids more wirerope prestress distributions uneven and bearing capacity is caused to reduce；Easy to use, installation is simple and efficient.
Description
Technical field
The present invention relates to civil engineering technical field of transportation, specifically a kind of loop chain type prestress rope automatic synchronization tensioning system
System and method.
Background technique
Due to the influence of material aging, construction quality, nature or the factors such as artificial, existing many bridge houses cored slab
Structure is suddenly to be repaired and reinforces, and countries in the world will expend huge fund thus every year.Existing structure reinforcement technique mainly has increase to cut
Face method, reinforcement by sticking of sheets, stickup fibrous composite method for strengthening, setting support method for strengthening, steel strand wires mesh sheet-polymer mortar add
Gu method etc..Existing reinforcement means is primarily present following problems: (1) reinforcement material and original component between there are Stress resort effect,
Co-operation ability is poor, largely effects on consolidation effect；(2) reinforcement material end anchorage length is inadequate, is easy discovery anchored end
Stripping damage, the strength of materials cannot be given full play to；(3) sectional dimension for increasing original component, increases self weight, influence sight and
It uses.And prestress rope reinforcement technique is a kind of extraordinary reinforcement technique, has actively reinforcing, unstressed lag effect
It answers, without stripping problem, and does not increase the sectional dimension of original component.But the tensioning of existing prestress rope reinforcement technique fills
It sets not mature enough with method, there are problems that inconvenient for use, difficult to install, inefficiency in engineer application.Therefore, it is badly in need of one
Kind new prestress rope automatic synchronization tensioning system and method are to solve the above problems.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of loop chain type compressor wire
Rope automatic synchronization tensioning system and method.
Technical solution: in order to solve the above technical problems, a kind of loop chain type prestress rope automatic synchronization of the invention
Pull system, including anchor slab, anchor slab are fixed on by bar planting in ruggedized construction；More main thread bars are equipped in anchor slab in parallel,
Main thread bar one end is connected with screw shell by internal screw thread, screw shell other end connecting steel wire ropes；The main thread bar other end
After the aperture of anchor slab, fixed with anchor band teeth nut；Anchor slab side is equipped with tensioning bracket, and each main thread bar penetrates tensioning
After in bracket, respectively by connection sleeve auxiliary connection threaded rod, after the deputy thread bar other end is pierced by tensioning bracket, respectively by tensioning
Band teeth nut is fixed on tensioning bracket；Each anchor band teeth nut and tensioning band teeth nut are separately connected driving mechanism.
Wherein, driving mechanism includes two chains connecting respectively with each anchor band teeth nut and tensioning with teeth nut,
The chain connection anchoring motor connecting with anchor band teeth nut, connects tensioning motor with the chain that teeth nut is connect with tensioning.
Wherein, each anchor band teeth nut and tensioning band teeth nut are that center is provided with internal thread hole, and outer profile is with teeth
Nut, tooth and chain are intermeshed.
Wherein, force snesor is equipped between tensioning bracket and anchor slab.
Wherein, screw shell one end is provided with axial internal thread hole, and the other end is provided with radial hole, and axial internal thread hole is for connecting
Main thread bar is connect, after steel wire penetrating radial hole, with squeezing anchor head anchoring.
A kind of loop chain type prestress rope automatic synchronization method for stretching, comprising the following steps:
(1) it is punched to ruggedized construction corresponding position, bar planting is installed；
(2) anchor slab is fixed on in ruggedized construction by bar planting；
(3) wirerope is anchored after around the aperture of screw shell with anchor head is squeezed；
(4) after the aperture that main thread bar is passed through to anchor slab, in the internal screw thread of precession screw shell, the other end of main thread bar
It is fixed with anchor band teeth nut；
(5) tensioning bracket is against on the force snesor of two sides of anchor slab, after deputy thread bar passes through the aperture of tensioning bracket
It is connected by connection sleeve with the main thread bar of front；
(6) tensioning band teeth nut is sequentially arranged on deputy thread bar；
(7) after the installation is completed to the wirerope on all anchor slabs, gear and chain are installed on tensioning motor and anchoring motor
Item；
(8) control tensioning motor work, drives the rotation of stretching end chain and tensioning with teeth nut, to apply to wirerope
Prestressing, until the reading of force snesor reaches design stretching force, control tensioning motor stops；
(9) control anchoring motor work, drive anchored end chain and anchor band teeth nut rotation, until anchoring motor because
Torque is too big and stops operating, thus locking screw rasp bar, control anchoring motor stops；
(10) tensioning band teeth nut, tensioning motor, anchoring motor, chain, gear, force snesor, connector sleeve are finally unloaded
Cylinder, deputy thread bar and tensioning bracket.
The utility model has the advantages that a kind of loop chain type prestress rope automatic synchronization tensioning system of the invention, has beneficial below
Effect:
1, may be implemented to anchor more wirerope by one piece of anchor slab, substantially increase reinforcing efficiency to existing structure and
Effect；
2, by the transmission device of motor, gear and chain, the automatic Tensioning to wirerope, automatically lock may be implemented,
Cost of labor is greatly saved, improves construction efficiency；
3, synchronous tension and synchronous locking can be implemented to all wirerope on anchor slab simultaneously, avoids more wirerope
The problem of prestress distribution unevenly causes bearing capacity to reduce；
4, tensioning band teeth nut, tensioning motor, anchoring motor, chain, gear, force snesor, connection sleeve and tensioning branch
Frame is detachable and reuses, and substantial saved reinforcement cost；
5, it integrates, this loop chain type prestress rope automatic synchronization tensioning system and method have easy to use, peace
Dress is simple, rapidly and efficiently the characteristics of.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is tensioning bracket top view；
Fig. 3 is tensioning bracket side view；
Fig. 4 is anchor slab top view；
Fig. 5 is for anchor slab and to ruggedized construction connection structure side view.
In figure: 1- anchor slab, 2- bar planting, 3- wirerope, 4- screw shell, 5- squeeze anchor head, 6- main thread bar, 7- tensioning branch
Frame, 8- connection sleeve, 9- force snesor, 10- tensioning motor, 11- anchor motor, 12- tensioning band teeth nut, 13- chain, 14-
Gear, 15- wait for ruggedized construction, and 16- anchors motor, 17- deputy thread bar.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
A kind of loop chain type prestress rope automatic synchronization tensioning system as shown in Figure 1, including anchor slab 1, anchor slab 1 pass through
Bar planting 2 is fixed on in ruggedized construction 15；More main thread bars 6,6 one end of main thread bar and screw thread are equipped in anchor slab 1 in parallel
Sleeve 4 is connected by internal screw thread, screw shell other end connecting steel wire ropes 3；6 other end of main thread bar passes through the aperture of anchor slab 1
Afterwards, fixed with anchor band teeth nut 11；1 side of anchor slab is equipped with tensioning bracket 7, and each main thread bar 6 penetrates in tensioning bracket 7
Afterwards, respectively by connection 8 auxiliary connection threaded rod 17 of sleeve, after 17 other end of deputy thread bar is pierced by tensioning bracket 7, respectively by tensioning
Band teeth nut 12 is fixed on tensioning bracket 7；Each anchor band teeth nut 11 is separately connected driving machine with tensioning band teeth nut 12
Structure；Force snesor 9 is equipped between tensioning bracket 7 and anchor slab 1.Driving mechanism include respectively with each anchor band teeth nut 11 and
Two chains that tensioning is connected with teeth nut 12, the chain connection anchoring motor 16 being connect with anchor band teeth nut 11, with tensioning
Tensioning motor 10 is connected with the chain that teeth nut 12 connects, each anchor band teeth nut 11 and tensioning band teeth nut 12 are center
It is provided with internal thread hole, and the nut that outer profile is with teeth, tooth and chain are intermeshed.4 one end of screw shell is provided with axial internal screw thread
Hole, the other end are provided with radial hole, and axial internal thread hole is for connecting main thread bar 6, after wirerope 3 passes through radial hole, with extruding
Anchor head 5 anchors.It squeezes anchor head 5 to be made by soft material, is inside provided with hole and is squeezed after wirerope 3 passes through extruding anchor head 5 with tool
Press the extruding anchor head 5, anchoring steel wire rope 3.In the present invention, wirerope 3 be extruded anchor head anchoring, the other end be fixed on beam or
On column.
The present invention also provides a kind of loop chain type prestress rope automatic synchronization method for stretching, comprising the following steps:
(1) it is punched to 15 corresponding position of ruggedized construction, bar planting 5 is installed；
(2) anchor slab 1 is fixed on in ruggedized construction 15 by bar planting 2；
(3) wirerope 3 is anchored after around the aperture of screw shell 4 with anchor head 5 is squeezed；
(4) by main thread bar 6 pass through anchor slab 1 aperture after, in the internal screw thread of precession screw shell 5, main thread bar 6 it is another
One end is fixed with anchor band teeth nut 11；
(5) tensioning bracket 7 is against on the force snesor 9 of the two sides of anchor slab 1, deputy thread bar 17 passes through tensioning bracket 7
It is connected by connecting sleeve 8 with the main thread bar 6 of front after aperture；
(6) tensioning band teeth nut 12 is sequentially arranged on deputy thread bar 17；
(7) after the installation is completed to the wirerope 3 on all anchor slabs 1, tooth is installed on tensioning motor 10 and anchoring motor 16
Wheel 14 and chain 13；
(8) control tensioning motor 10 works, and the rotation of stretching end chain 13 and tensioning with teeth nut 12 is driven, thus to steel
Cord 3 applies prestressing force, until the reading of force snesor 9 reaches design stretching force, control tensioning motor 10 stops；
(9) control anchoring motor 16 works, and drives the rotation of anchored end chain 13 and anchor band teeth nut 11, until anchoring
Motor 16 stops operating because torque is too big, thus locking screw rasp bar 6, control anchoring motor 16 stops；
(10) tensioning band teeth nut 12, tensioning motor 10, anchoring motor 16, chain 13, gear 14, power sensing are finally unloaded
Device 9, connection sleeve 8, deputy thread bar 17 and tensioning bracket 7.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of loop chain type prestress rope automatic synchronization method for stretching, it is characterised in that: including anchor slab (1), anchor slab (1) is logical
Bar planting (2) is crossed to be fixed on on ruggedized construction (15)；More main thread bars (6), main thread bar are equipped in anchor slab (1) in parallel
(6) one end is connected with screw shell (4), after the other end passes through anchor slab (1), is fixed on anchor slab (1) with anchor band teeth nut (11)
Side；Screw shell (4) other end connecting steel wire ropes (3)；Anchor slab (1) side is equipped with tensioning bracket (7), each main thread bar
(6) after penetrating in tensioning bracket (7), pass through connection sleeve (8) auxiliary connection threaded rod (17), deputy thread bar (17) other end respectively
After being pierced by tensioning bracket (7), it is fixed on tensioning bracket (7) by tensioning band teeth nut (12) respectively；Each anchor band teeth nut
(11) driving mechanism is separately connected with tensioning band teeth nut (12)；
It the described method comprises the following steps:
(1) it punches, installs bar planting (2) to ruggedized construction (15) corresponding position；
(2) anchor slab (1) is fixed on on ruggedized construction (15) by bar planting (2)；
(3) wirerope (3) is anchored after around the aperture of screw shell (4) with anchor head (5) are squeezed；
(4) after the aperture that main thread bar (6) are passed through to anchor slab (1), in the internal screw thread of precession screw shell (4), main thread bar (6)
The other end it is fixed with anchor band teeth nut (11)；
(5) tensioning bracket (7) is against on the force snesor (9) of the side of anchor slab (1), deputy thread bar (17) passes through tensioning bracket
(7) it is connected by connecting sleeve (8) with the main thread bar (6) of front after aperture；
(6) tensioning band teeth nut (12) is sequentially arranged on deputy thread bar (17)；
(7) after the installation is completed to the wirerope (3) on all anchor slabs (1), pacify on tensioning motor (10) and anchoring motor (16)
Cogged (14) and chain (13)；
(8) control tensioning motor (10) work drives stretching end chain (13) and rotation of the tensioning with teeth nut (12), thus right
Wirerope (3) applies prestressing force, until the reading of force snesor (9) reaches design stretching force, control tensioning motor (10) stops；
(9) control anchoring motor (16) work drives the rotation of anchored end chain (13) and anchor band teeth nut (11), until anchor
Gu motor (16) stops operating because torque is too big, to lock main thread bar (6), control anchoring motor (16) stops；
(10) finally unload tensioning band teeth nut (12), tensioning motor (10), anchoring motor (16), chain (13), gear (14),
Force snesor (9), connection sleeve (8), deputy thread bar (17) and tensioning bracket (7).
2. loop chain type prestress rope automatic synchronization method for stretching according to claim 1, it is characterised in that: wherein,
Driving mechanism includes the chain connecting with each anchor band teeth nut (11) and the chain connecting with each tensioning with teeth nut (12)
Item, chain connection anchoring motor (16) being connect with anchor band teeth nut (11), the chain being connect with tensioning with teeth nut (12)
It connects tensioning motor (10).
3. loop chain type prestress rope automatic synchronization method for stretching according to claim 2, it is characterised in that: wherein,
Each anchor band teeth nut (11) and tensioning band teeth nut (12) are that center is provided with internal thread hole, and the spiral shell that outer profile is with teeth
Mother, tooth and chain are intermeshed.
4. loop chain type prestress rope automatic synchronization method for stretching according to claim 1, it is characterised in that: wherein,
Force snesor (9) are equipped between tensioning bracket (7) and anchor slab (1).
5. loop chain type prestress rope automatic synchronization method for stretching according to claim 1, it is characterised in that: wherein,
Screw shell (4) one end is provided with axial internal thread hole, and the other end is provided with radial hole, and axial internal thread hole is for connecting main thread bar
(6), it after wirerope (3) passes through radial hole, is anchored with anchor head (5) are squeezed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700743.9A CN106436587B (en) | 2016-08-22 | 2016-08-22 | Loop chain type prestress rope automatic synchronization tensioning system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700743.9A CN106436587B (en) | 2016-08-22 | 2016-08-22 | Loop chain type prestress rope automatic synchronization tensioning system and method |
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| Publication Number | Publication Date |
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| CN106436587A CN106436587A (en) | 2017-02-22 |
| CN106436587B true CN106436587B (en) | 2019-03-05 |
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| CN201610700743.9A Active CN106436587B (en) | 2016-08-22 | 2016-08-22 | Loop chain type prestress rope automatic synchronization tensioning system and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108678408B (en) * | 2018-06-02 | 2020-12-08 | 日照市德衡信息技术有限公司 | Reinforced concrete roof beam prestressing force wire rope reinforcing apparatus |
| CN115609749B (en) * | 2022-10-18 | 2023-04-25 | 江西省宜春公路建设集团有限公司 | Prestressed crawler-type tension car balancing box |
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| KR20020039640A (en) * | 2001-12-21 | 2002-05-27 | 유용하 | Screw-type tendon tensioning device for post-tension of a pre-stress concrete structure |
| CN201794310U (en) * | 2010-08-16 | 2011-04-13 | 上海中技桩业股份有限公司 | Automatic nut screwing device for prestress tensioning machine |
| CN102561210A (en) * | 2012-01-17 | 2012-07-11 | 武汉大学 | Carbon fiber bar in-vitro prestressed tensioning device and using method thereof |
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Inventor after: Wang Guoqiang Inventor after: Li Xinghua Inventor after: Wu Gang Inventor after: Jiang Jianbiao Inventor before: Xinhua Inventor before: Li Xinghua Inventor before: Wu Gang Inventor before: Jiang Jianbiao |