CN106436587A - Chain link type automatic synchronous tensioning system and method for prestressed wire ropes - Google Patents
Chain link type automatic synchronous tensioning system and method for prestressed wire ropes Download PDFInfo
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- CN106436587A CN106436587A CN201610700743.9A CN201610700743A CN106436587A CN 106436587 A CN106436587 A CN 106436587A CN 201610700743 A CN201610700743 A CN 201610700743A CN 106436587 A CN106436587 A CN 106436587A
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- tensioning
- anchor
- teeth nut
- motor
- band teeth
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a chain link type automatic synchronous tensioning system and method for prestressed wire ropes. The chain link type automatic synchronous tensioning system comprises an anchor plate, wherein the anchor plate is fixed on a structure to be reinforced through planted bars; a plurality of main threaded rods are arranged in the anchor plate in a parallel and penetrating manner; one end of each of the main threaded rods is connected with a corresponding screw sleeve, and the other end of each of the screw sleeves is connected with a corresponding steel wire rope; after the other end of each of the main threaded rods penetrates through a corresponding opening of the anchor plate, the other end of each of the main threaded rods is fixed by a corresponding anchoring toothed nut; a tensioning bracket is arranged on one side of the anchor plate; after the main threaded rods penetrate in the tensioning bracket, each of the main threaded rods is connected with a corresponding secondary threaded rod through a corresponding connecting sleeve; after the other ends of the secondary threaded rods penetrate out of the tensioning bracket, the other ends of the secondary threaded rods are separately fixed on the tensioning bracket by corresponding tensioning toothed nuts; and the anchoring toothed nuts and the tensioning toothed nuts are separately connected with a driving mechanism. According to the chain link type automatic synchronous tensioning system disclosed by the invention, anchoring a plurality of steel wire ropes can be realized through one anchor plate, so that the reinforcing efficiency and the reinforcing effect of a conventional structure are improved; and synchronous tensioning and synchronous locking are performed on all the steel wire ropes on the anchor plate, so that the situation that the bearing capacity is reduced due to uneven distribution of the prestressing force of the steel wire ropes is avoided, and the automatic synchronous tensioning system is convenient to use, and simple and high-efficiency to mount.
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 technology
Due to the impact of material aging, construction quality, nature or the factor such as artificial, existing a lot of bridge houses cored slab
Structure is suddenly to be repaired and reinforces, and countries in the world will expend huge fund every year for this.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 problems with：(1) there is Stress resort effect between reinforcement material and original component,
Cooperation ability is poor, largely effects on consolidation effect；(2) reinforcement material end anchorage length not, easily finds anchored end
Stripping damage it is impossible to give full play to the strength of materials；(3) increase original component sectional dimension, increase deadweight, impact sight and
Use.And prestress rope reinforcement technique is a kind of extraordinary reinforcement technique, there is actively reinforcing, unstressed delayed effect
Should, no stripping problem, and do not increase the sectional dimension of original component.But the tensioning of existing prestress rope reinforcement technique fills
Put not mature enough with method, there is a problem of in engineer applied using inconvenience, installation difficulty, inefficiency.Therefore, it is badly in need of one
Plant new prestress rope automatic synchronization tensioning system and method to solve the above problems.
Content 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 scheme：For solving above-mentioned technical problem, a kind of loop chain type prestress rope automatic synchronization of the present invention is opened
Pull system, including anchor slab, anchor slab is fixed on by bar planting to be treated in ruggedized construction；Parallel in anchor slab be equipped with many main thread bars,
Main thread bar one end is connected by female thread with screw shell, screw shell other end connecting steel wire ropes；The main thread bar other end
Through after the perforate of anchor slab, fixed with anchor band teeth nut；Anchor slab side is provided with tensioning support, and each main thread bar penetrates tensioning
After in support, pass through branch sleeve auxiliary connection threaded rod respectively, after the deputy thread bar other end passes tensioning support, respectively by tensioning
Band teeth nut is fixed on tensioning support；Each anchor band teeth nut is connected drive mechanism respectively with tensioning band teeth nut.
Wherein, drive mechanism includes two chains being connected with teeth nut respectively with each anchor band teeth nut and tensioning,
The chain being connected with anchor band teeth nut connects anchoring motor, connects tensioning motor with tensioning with the chain that teeth nut is connected.
Wherein, each anchor band teeth nut and tensioning band teeth nut are central authorities and have internal thread hole, and outline is with teeth
Nut, tooth engaged each other with chain.
Wherein, it is provided with force transducer between tensioning support and anchor slab.
Wherein, screw shell one end has axial internal thread hole, and the other end has radial hole, and axial internal thread hole is used for even
Connect main thread bar, after steel wire penetrating radial hole, with extruding anchor head anchoring.
A kind of loop chain type prestress rope automatic synchronization method for stretching, comprises the following steps：
(1) treating the punching of ruggedized construction relevant position, bar planting is being installed；
(2) by bar planting, anchor slab is fixed on and treats in ruggedized construction；
(3) steel wire rope, after the perforate bypassing screw shell, is anchored with extruding anchor head；
(4) after main thread bar being passed through the perforate of anchor slab, in the female thread of precession screw shell, the other end of main thread bar
Fixed with anchor band teeth nut；
(5) tensioning support is against on the force transducer of both sides of anchor slab, after deputy thread bar passes through the perforate of tensioning support
It is connected with main thread bar above by branch sleeve；
(6) tensioning band teeth nut is sequentially arranged on deputy thread bar；
(7) after the steel wire rope on all anchor slabs installs, tensioning motor and anchoring motor install gear and chain
Bar；
(8) controlling the work of tensioning motor, driving stretching end chain and the rotation with teeth nut for the tensioning, thus applying to steel wire rope
Prestressing, until the reading of force transducer reaches design stretching force, controls tensioning motor to stop；
(9) control anchoring motor work, drive the rotation of anchored end chain and anchor band teeth nut, until anchoring motor because
Moment of torsion stops operating greatly very much, thus locking screw rasp bar, controls anchoring motor to stop；
(10) tensioning band teeth nut, tensioning motor, anchoring motor, chain, gear, force transducer, adapter sleeve are finally unloaded
Cylinder, deputy thread bar and tensioning support.
Beneficial effect：A kind of loop chain type prestress rope automatic synchronization tensioning system of the present invention, has following beneficial
Effect：
1st, can realize anchoring many steel wire ropes by one piece of anchor slab, substantially increase the reinforcing efficiency to existing structure and
Effect；
2nd, pass through the actuating device of motor, gear and chain, it is possible to achieve to the automatic Tensioning of steel wire rope, auto lock,
Greatly save cost of labor, improve efficiency of construction；
3rd, all steel wire ropes on anchor slab can be implemented with synchronous tensions simultaneously and synchronous lock, it is to avoid many steel wire ropes
The problem that prestress distribution is uneven and leads to bearing capacity to reduce；
4th, tensioning band teeth nut, tensioning motor, anchoring motor, chain, gear, force transducer, branch sleeve and tensioning are propped up
Frame is all detachable and reuses, and substantial saving in reinforcement cost；
5th, integrate, this loop chain type prestress rope automatic synchronization tensioning system and method have easy to use, peace
Dress is simple, feature rapidly and efficiently.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is tensioning support top view；
Fig. 3 is tensioning support side view；
Fig. 4 is anchor slab top view；
Fig. 5 be anchor slab with treat ruggedized construction attachment structure side view.
In figure：1- anchor slab, 2- bar planting, 3- steel wire rope, 4- screw shell, 5- extrudes anchor head, 6- main thread bar, and 7- tensioning is propped up
Frame, 8- branch sleeve, 9- force transducer, 10- tensioning motor, 11- anchors motor, 12- tensioning band teeth nut, 13- chain, 14-
Gear, 15- treats ruggedized construction, and 16- anchors motor, 17- deputy thread bar.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
A kind of loop chain type prestress rope automatic synchronization tensioning system as shown in Figure 1, including anchor slab 1, anchor slab 1 passes through
Bar planting 2 is fixed on and is treated in ruggedized construction 15；Parallel in anchor slab 1 it is equipped with many main thread bars 6, main thread bar 6 one end and screw thread
Sleeve 4 passes through female thread and is connected, screw shell other end connecting steel wire ropes 3；Main thread bar 6 other end passes through the perforate of anchor slab 1
Afterwards, fixing with anchor band teeth nut 11；Anchor slab 1 side is provided with tensioning support 7, and each main thread bar 6 penetrates in tensioning support 7
Afterwards, pass through branch sleeve 8 auxiliary connection threaded rod 17 respectively, after deputy thread bar 17 other end passes tensioning support 7, respectively by tensioning
Band teeth nut 12 is fixed on tensioning support 7；Each anchor band teeth nut 11 is connected driving machine respectively with tensioning band teeth nut 12
Structure；It is provided with force transducer 9 between tensioning support 7 and anchor slab 1.Drive mechanism include respectively with each anchor band teeth nut 11 and
Two chains that tensioning connects with teeth nut 12, the chain being connected with anchor band teeth nut 11 connects anchoring motor 16, with tensioning
Connect tensioning motor 10 with the chain that teeth nut 12 connects, each anchor band teeth nut 11 and tensioning band teeth nut 12 are central authorities
Have internal thread hole, and an outline nut with teeth, tooth is engaged each other with chain.Screw shell 4 one end has axial female thread
Hole, the other end has radial hole, and axial internal thread hole is used for connecting main thread bar 6, after steel wire rope 3 passes through radial hole, with extruding
Anchor head 5 anchors.Extruding anchor head 5 is made by soft material, inside has hole, after steel wire rope 3 passes through extruding anchor head 5, is squeezed with instrument
Pressure described extruding anchor head 5, anchoring steel wire rope 3.In the present invention, steel wire rope 3 be extruded anchor head anchoring, the other end be fixed on beam or
On post.
The present invention also provides a kind of loop chain type prestress rope automatic synchronization method for stretching, comprises the following steps：
(1) treating the punching of ruggedized construction 15 relevant position, bar planting 5 is being installed；
(2) by bar planting 2, anchor slab 1 is fixed on and treats in ruggedized construction 15；
(3) steel wire rope 3, after the perforate bypassing screw shell 4, is anchored with extruding anchor head 5；
(4) by main thread bar 6 pass through anchor slab 1 perforate after, in the female thread of precession screw shell 5, main thread bar 6 another
One end is fixing with anchor band teeth nut 11；
(5), on the force transducer 9 of the both sides that tensioning support 7 is against anchor slab 1, deputy thread bar 17 passes through tensioning support 7
It is connected with main thread bar 6 above by branch sleeve 8 after perforate；
(6) tensioning band teeth nut 12 is sequentially arranged on deputy thread bar 17；
(7) after the steel wire rope 3 on all anchor slabs 1 installs, tooth installed by tensioning motor 10 and anchoring motor 16
Wheel 14 and chain 13；
(8) control tensioning motor 10 to work, drive stretching end chain 13 and the rotation with teeth nut 12 for the tensioning, thus to steel
Cord 3 applies prestressing force, until the reading of force transducer 9 reaches design stretching force, controls tensioning motor 10 to stop；
(9) control anchoring motor 16 to work, drive the rotation of anchored end chain 13 and anchor band teeth nut 11, until anchoring
Motor 16 stops operating because moment of torsion is too big, thus locking screw rasp bar 6, controls anchoring motor 16 to stop；
(10) tensioning band teeth nut 12, tensioning motor 10, anchoring motor 16, chain 13, gear 14, power sensing are finally unloaded
Device 9, branch sleeve 8, deputy thread bar 17 and tensioning support 7.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of loop chain type prestress rope automatic synchronization tensioning system it is characterised in that：Including anchor slab (1), anchor slab (1) leads to
Cross bar planting (2) and be fixed on and treat in ruggedized construction (15)；Parallel in anchor slab (1) it is equipped with many main thread bars (6), main thread bar
(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 provided with tensioning support (7), each main thread bar
(6), after penetrating in tensioning support (7), branch sleeve (8) auxiliary connection threaded rod (17), deputy thread bar (17) other end are passed through respectively
After passing tensioning support (7), it is fixed on tensioning support (7) by tensioning band teeth nut (12) respectively；Each anchor band teeth nut
(11) it is connected drive mechanism respectively with tensioning band teeth nut (12).
2. loop chain type prestress rope automatic synchronization tensioning system according to claim 1 it is characterised in that：Wherein,
Drive mechanism includes two chains being connected respectively with each anchor band teeth nut (11) and tensioning band teeth nut (12), with anchoring
Connect anchoring motor (16) with the chain that teeth nut (11) connects, the chain being connected with tensioning band teeth nut (12) connects tensioning electricity
Machine (10).
3. loop chain type prestress rope automatic synchronization tensioning system according to claim 2 it is characterised in that：Wherein,
Each anchor band teeth nut (11) and tensioning band teeth nut (12) are central authorities and have internal thread hole, and outline spiral shell with teeth
Mother, tooth is engaged each other with chain.
4. loop chain type prestress rope automatic synchronization tensioning system according to claim 1 it is characterised in that：Wherein,
It is provided with force transducer (9) between tensioning support (7) and anchor slab (1).
5. loop chain type prestress rope automatic synchronization tensioning system according to claim 1 it is characterised in that：Wherein,
Screw shell (4) one end has axial internal thread hole, and the other end has radial hole, and axial internal thread hole is used for connecting main thread bar
(6) after, steel wire rope (3) passes through radial hole, with extruding anchor head (5) anchoring.
6. a kind of loop chain type prestress rope automatic synchronization method for stretching is it is characterised in that comprise the following steps：
(1) treating the punching of ruggedized construction (15) relevant position, bar planting (2) is being installed；
(2) by bar planting (2), anchor slab (1) is fixed on and treats in ruggedized construction (15)；
(3) steel wire rope (3), after the perforate bypassing screw shell (4), is anchored with extruding anchor head (5)；
(4) after main thread bar (6) being passed through the perforate of anchor slab (1), in the female thread of precession screw shell (5), main thread bar (6)
The other end fixing with anchor band teeth nut (11)；
(5), on the force transducer (9) of the both sides that tensioning support (7) is against anchor slab (1), deputy thread bar (17) passes through tensioning support
(7) it is connected with main thread bar (6) above by branch sleeve (8) after perforate；
(6) tensioning band teeth nut (12) is sequentially arranged on deputy thread bar (17)；
(7) after the steel wire rope (3) on all anchor slabs (1) installs, in tensioning motor (10) and the upper peace of anchoring motor (16)
Cogged (14) and chain (13)；
(8) control tensioning motor (10) work, drive the rotation of stretching end chain (13) and tensioning band teeth nut (12), thus right
Steel wire rope (3) applies prestressing force, until the reading of force transducer (9) reaches design stretching force, controls tensioning motor (10) to stop；
(9) control anchoring motor (16) work, drive the rotation of anchored end chain (13) and anchor band teeth nut (11), until anchor
Gu motor (16) stops operating because moment of torsion is too big, thus locking screw rasp bar (6), anchoring motor (16) is controlled to stop；
(10) finally unload tensioning band teeth nut (12), tensioning motor (10), anchoring motor (16), chain (13), gear (14),
Force transducer (9), branch sleeve (8), deputy thread bar (17) and tensioning support (7).
Priority Applications (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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| 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 |
|---|---|
| CN106436587A true CN106436587A (en) | 2017-02-22 |
| CN106436587B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678408A (en) * | 2018-06-02 | 2018-10-19 | 孙语遥 | Reinforced concrete roof beam prestressing force wire rope reinforcing apparatus |
| CN115609749A (en) * | 2022-10-18 | 2023-01-17 | 江西省宜春公路建设集团有限公司 | Prestressed crawler-type tensioning car balance box |
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| CN203320978U (en) * | 2013-06-07 | 2013-12-04 | 华北水利水电大学 | Tensioning and anchoring device for prestressed carbon fiber sheet reinforced long-span concrete structure |
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| CN206173820U (en) * | 2016-08-22 | 2017-05-17 | 江西赣粤高速公路股份有限公司 | Push -pull system is opened to endless chain formula prestressed wire rope automatic synchronization |
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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 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678408A (en) * | 2018-06-02 | 2018-10-19 | 孙语遥 | Reinforced concrete roof beam prestressing force wire rope reinforcing apparatus |
| 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 |
| CN115609749A (en) * | 2022-10-18 | 2023-01-17 | 江西省宜春公路建设集团有限公司 | Prestressed crawler-type tensioning car balance box |
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| Publication number | Publication date |
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| CN106436587B (en) | 2019-03-05 |
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