CN107538613A - The preparation method of prestress wire - Google Patents
The preparation method of prestress wire Download PDFInfo
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- CN107538613A CN107538613A CN201710849350.9A CN201710849350A CN107538613A CN 107538613 A CN107538613 A CN 107538613A CN 201710849350 A CN201710849350 A CN 201710849350A CN 107538613 A CN107538613 A CN 107538613A
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- threaded rod
- cross beam
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Abstract
The invention provides a kind of preparation method of prestress wire.This method includes：After making at least four threaded rods according to default pedestal, fixed cross beam and moved cross beam, the bar wiring connector and bar rod connector being adapted are chosen；The first end for the threaded rod being attached in fixed cross beam and the steel strand wires that are attached on default pedestal is detachably connected by bar wiring connector and the 3rd end of threaded rod of the second end of the threaded rod being attached in fixed cross beam with being attached in moved cross beam is detachably connected by bar rod connector.The present invention is by the way that the threaded rod of processing is used cooperatively with steel strand wires, reduce steel strand wires using length to reduce the difficulty of steel strand tension, solve the problems, such as steel strand tension difficulty, while shortened the cycle of steel strand tension process and subsequent examination, and then improve the efficiency of construction；By installing lever connector and bar wiring connector, so as to convenient disassembly between steel strand wires and threaded rod and between threaded rod.
Description
Technical field
The present invention relates to technical field of bridge engineering, in particular to a kind of preparation method of prestress wire.
Background technology
At present, Bridge Construction region needs guiding through region of no relief and low hilly area, and most of section is marshland, engineering total length
9.628 kilometers, wherein 6.635 kilometers are overpass, cored slab is about 1341, wherein side plate 298, and middle plate 1033 is double
Guttr board 10.15m, 20m beam slab are the wide big hollow plates of 1.49m, account for the 80% of whole project beam slab quantity, remaining 13m, 12m,
10m beam slabs are the wide general hollow plates of 0.99m.Because the construction reference uses English mark, hollow slab girder prefabricated construction quality requirement
Height, difficulty of construction is big, the construction period is short.
In this engineering construction, beam slab quantity is larger, steel strand wires dosage is very big.Due to the limitation in prefabricated place first open it is pre-
The extreme length of abutment design processed is 95 meters, and every pedestal of 6 pedestals can at most produce 4 20 meters of cored slabs altogether, per prefabricated
Produce and be required to steel strand wires wearing connection on a groove beam slab, formed after the cutting of this part during dismounting it is substantial amounts of waste, meanwhile, lead to
Long steel wire installation and tensioning are relatively difficult, influence Beam-Slab Construction progress and quality；Further, since the setting of steel strand wires
Quality directly affects the quality of bridge construction, therefore steel wire and tensioning value are needed in strict conformity with design standard, therefore steel twists
Line is set need to repeatedly check modification when not being inconsistent, and directly affects the construction speed of bridge.
The content of the invention
In consideration of it, the present invention proposes a kind of preparation method of prestress wire, it is intended to solves steel in existing method and twists
The problem of line is longer to cause it to install tensioning difficulty.
On one side, the present invention proposes a kind of preparation method of prestress wire, and this method includes：Threaded rod makes
Step, after making at least four threaded rods according to default pedestal, fixed cross beam and moved cross beam, choose the bar line connection being adapted
Device and bar rod connector；Threaded rod installation steps, by the first end for the threaded rod being attached in the fixed cross beam with being attached to
Steel strand wires spiral shell detachably connected by bar wiring connector, and will being attached in the fixed cross beam on the default pedestal
3rd end of threaded rod of the second end of rasp bar with being attached in the moved cross beam is detachably connected by bar rod connector.
Further, the preparation method of above-mentioned prestress wire, the threaded rod installation steps include：Threaded rod is pre- solid
Sub-step, installing the threaded rod respectively in the prestress hole of the fixed cross beam and the moved cross beam pacifies its end
Outside loaded on corresponding prestress hole；Connector fixes sub-step, and the bar wiring connector and the bar rod connector are connected respectively
To the first end of the threaded rod through the fixed cross beam and the second end, by the bar wiring connector by the steel strand wires
It is connected with through the threaded rod of the fixed cross beam；Threaded rod fixes sub-step, will pass through in the screw thread of the moved cross beam
On the three-terminal link of bar to the bar rod connector.
Further, the preparation method of above-mentioned prestress wire, fixed in the connector in sub-step, by described
The intermediate plate of bar wiring connector sets the steel strand wires card to the connector of the bar wiring connector.
Further, the preparation method of above-mentioned prestress wire, also include before the connector fixes sub-step：
Intermediate plate lubricates sub-step, by brushing lubricant between the intermediate plate and connector of the bar wiring connector.
Further, the preparation method of above-mentioned prestress wire, also include after the connector fixes sub-step：
Intermediate plate checks sub-step, checks the installation situation of the intermediate plate and the steel strand wires and ensures that the tensioning of the steel strand wires is safe.
Further, the preparation method of above-mentioned prestress wire, the threaded rod making step include：Length determines son
Step, the length of the threaded rod is determined according to the default pedestal, the fixed cross beam and the moved cross beam；Threaded rod is true
Recognize sub-step, the spiral shell of the threaded rod is determined according to the prestress hole opened up in advance on the fixed cross beam and the moved cross beam
Line parameter；Threaded rod processes sub-step, and threaded rod is processed according to the length of the threaded rod and diameter, and according to the ginseng of threaded rod
Number chooses the bar wiring connector being adapted and the bar rod connector.
Further, the preparation method of above-mentioned prestress wire, also include before the threaded rod installation steps：Steel
Twisted wire installation steps, the steel strand wires of designated length are installed on the default pedestal.
Further, the preparation method of above-mentioned prestress wire, also include after the threaded rod installation steps：Spiral shell
Cap fixing step, each threaded rod is consolidated by being arranged at the nut of stress bore ends of the fixed cross beam and the moved cross beam
It is fixed.
The preparation method of prestress wire provided by the invention, made by the way that the threaded rod of processing is coordinated with steel strand wires
With compared with existing exclusive use steel strand wires, threaded rod instead of the steel strand wires for being arranged at fixed cross beam and moved cross beam, not only
Reduce steel strand wires using length to reduce the difficulty of steel strand tension, and threaded rod need not for steel strand wires
Tensioning is carried out to threaded rod, solves the problems, such as steel strand tension difficulty, and then improves the quality of steel strand wires fixation, so as to carry
The high quality of construction work, while the cycle of steel strand tension process and subsequent examination has been shortened, and then improve construction
Efficiency；By installing lever connector and bar wiring connector, so as to the dismounting between steel strand wires and threaded rod and between threaded rod
It is convenient, the efficiency of construction is improved, in addition, threaded rod is using reusable after dismantling.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the schematic flow sheet of the preparation method of prestress wire provided in an embodiment of the present invention；
Fig. 2 is the structural representation of pretensioned prestressing steel strand wires provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of threaded rod installation steps provided in an embodiment of the present invention；
Fig. 4 is the schematic flow sheet of threaded rod making step provided in an embodiment of the present invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1 and Fig. 2, this method comprises the following steps：
Threaded rod making step S1, after making at least four threaded rods according to default pedestal, fixed cross beam and moved cross beam, choose
The bar wiring connector and bar rod connector being adapted.
Specifically, joined according to the design of bridge construction scene required default pedestal 1, fixed cross beam 2 and moved cross beam 3
Number measures its parameter processing and fabricating at least four phases according to the default pedestal 1, fixed cross beam 2 and moved cross beam 3 of job site
The threaded rod 4 of adaptation, and choose the bar wiring connector 5 and bar rod connector 6 being adapted.
Steel strand wires fixing step S2, the steel strand wires of designated length are installed on default pedestal.
Specifically, first, according to the demand of job site and the length of threaded rod 4, the parameter and evidence of steel strand wires 7 are determined
The steel strand wires and its length that this selection is adapted, and length mark structure is set in steel strand wires predeterminated position, brushing can be passed through
Paint to become apparent from determines the corresponding length of steel strand wires 7 as length mark structure；Then, in the default pedestal 1 of cleaning
Afterwards during unwrapping wire, several separators are placed along default pedestal 1 is longitudinally spaced, to avoid connecing for steel strand wires 7 and default pedestal 1
Touch；Finally, by manually drawing one end of steel strand wires to the other end of default pedestal 1 from one end of default pedestal 1, pass through
Cutting machine cuts steel strand wires according to length mark structure in predeterminated position, it is ensured that steel wire length is more than or equal to mark and grown
Degree.
Wherein, there is no sequencing between threaded rod making step S1 and steel strand wires fixing step S2.
Threaded rod installation steps S3, by the first end for the threaded rod 4 being attached in fixed cross beam 2 and it is attached to default pedestal
Steel strand wires 7 on 1 are detachably connected by bar wiring connector 5, and by the second of the threaded rod 4 being attached in fixed cross beam 2
The 3rd end for holding and being attached to the threaded rod 4 in moved cross beam is detachably connected by bar rod connector 6.
Specifically, known in those skilled in the art to be, the both sides of default pedestal 1 are provided with a fixed cross beam
2 and a moved cross beam 3, and fixed cross beam 2 is arranged between moved cross beam 3 and default pedestal 1, each fixed cross beam 2 and living
Dynamic crossbeam 3 offers prestress hole；First, it is each in the prestress hole of each fixed cross beam 2 and moved cross beam 3 to fix a screw thread
The threaded rod 4 that bar making step S1 makes, and ensure that the end of each threaded rod 4 is placed in outside prestress hole；Then, steel strand wires are solid
Determine the bar line connection that the end for the steel strand wires that step S2 is fixed on default pedestal 1 is chosen by threaded rod making step S1 respectively
The end that the first end of two piece threaded rod 4 of the device 5 with being fixed in fixed cross beam 2 is i.e. adjacent with steel strand wires 7 is connected, and is fixed to
Determine the end that the second end of two in crossbeam 2 threaded rods 4 is arranged between fixed cross beam 2 and moved cross beam 3 and pass through screw thread
3rd end of two piece threaded rods 4 of the bar rod connector 6 that bar making step S1 chooses with being fixed in moved cross beam 3 is arranged at
End connection between fixed cross beam 2 and moved cross beam 3.
Nut fixing step S4, by be arranged at fixed cross beam and moved cross beam stress bore ends nut by each screw thread
Bar is fixed.
Specifically, first, after the position adjustment of moved cross beam 3 is errorless, observes and connected respectively between steel strand wires 7 and threaded rod 4
Whether the position at place accomplishes the end in view；Then, by jack moved cross beam 3 it is outer steel strand wires 7 are moved in advance by root it is identical
Stress；Finally, by be arranged at fixed cross beam 2 and moved cross beam 3 stress bore ends nut 8 by threaded rod installation steps
The threaded rod 4 of S3 installations is fixed.
It will be readily appreciated that the preparation method for the prestress wire that the present embodiment provides, by by the spiral shell of processing
Rasp bar 4 is used cooperatively with steel strand wires 7, and compared with existing exclusive use steel strand wires, threaded rod 4, which instead of, is arranged at fixed cross beam 2
With the steel strand wires of moved cross beam 3, not only reduce steel strand wires using length to reduce the difficulty of steel strand tension, and spiral shell
Rasp bar 4, without carrying out tensioning to threaded rod, solves the problems, such as steel strand tension difficulty, and then improve for steel strand wires
The quality that steel strand wires are fixed, so as to improve the quality of construction work, while steel strand tension process and follow-up inspection are shortened
The cycle looked into, and then improve the efficiency of construction；By installing lever connector 6 and bar wiring connector 5, so as to the He of steel strand wires 7
Convenient disassembly between threaded rod 4 and between threaded rod 4, the efficiency of construction is improved, in addition, threaded rod 4 is after using dismantling
It is reusable.
Referring to Fig. 2 and Fig. 3, threaded rod installation steps S3 includes following sub-step：
Threaded rod pre-fixes sub-step S31, and installing threaded rod respectively in the prestress hole of fixed cross beam and moved cross beam makes it
End is installed on outside corresponding prestress hole.
Specifically, first, the debris cleared up in the prestress hole of two fixed cross beams 2 and two moved cross beams 3；So
Afterwards, a threaded rod making step S1 is placed respectively in the prestress hole of two fixed cross beams 2 and two moved cross beams 3 to make
Threaded rod 4 and by threaded rod 4 be positioned over predeterminated position ensure threaded rod 4 end set in outside prestress hole.
Intermediate plate lubricates sub-step S32, the brushing lubricant between the intermediate plate and connector of bar wiring connector.
Specifically, known in the field to be, bar wiring connector 5 includes connector and is arranged in connector to card
If three intermediate plates of steel strand wires；First, it is cleared up after the front end of intermediate plate is broken into two with one's hands；Then, smeared in the front end of intermediate plate
One layer of butter lubricant lubricating, the safety of workmen during to ensure tensioning；The amount of coating butter lubricant can be according to actual feelings
Condition determines, the safety of workmen during to further ensure that tensioning.
Wherein, threaded rod, which is pre-fixed between sub-step S31 and intermediate plate lubrication sub-step S32, does not have sequencing.
Connector fixes sub-step S33, and bar wiring connector and bar rod connector are respectively connecting to through fixed cross beam
Threaded rod first end and the second end after, by bar wiring connector by steel strand wires with through fixed cross beam threaded rod connect
Connect.
Specifically, first, one bar line connection is installed in the first end of the threaded rod 4 through two fixed cross beams 2
Device 5；Then, a bar rod connector 6 is installed at the second end of the threaded rod 4 through two fixed cross beams 2；Finally, pass through
The intermediate plate of two bar wiring connectors 5 will be laid to the end card of the steel strand wires on default pedestal 1 and be set to bar wiring connector 5, enter
And steel strand wires 7 are caused to be connected as entirety with the threaded rod 4 through two fixed cross beams 2.
Intermediate plate checks sub-step S34, checks the installation situation of intermediate plate and steel strand wires and ensures that the tensioning of steel strand wires is safe.
Specifically, the safety of workmen depends primarily on the connection of steel strand wires during tensioning, by checking intermediate plate and steel
The connection of twisted wire end, it can be ensured that intermediate plate is by the complete clamping in the end of steel strand wires, workmen during to further ensure that tensioning
Safety.
Threaded rod fixes sub-step S35, will pass through three-terminal link in the threaded rod of moved cross beam to bar rod connector
On.
Specifically, will pass through in the 3rd end of the threaded rod 4 of two moved cross beams 3 bar rod connector 6 adjacent thereto
Connection, so as to which adjacent threaded rod 4 is connected as into an entirety.
Wherein, intermediate plate, which is checked between sub-step S34 and threaded rod fixation sub-step S35, does not have sequencing.
It will be readily appreciated that the present embodiment mounting rod rod connector 6 and bar wiring connector 5 are by each He of threaded rod 4
Steel strand wires 7 connect, and so that each threaded rod 4 and steel strand wires 7 form entirety, are easy to the tensioning subsequently to steel strand wires to act on, it is ensured that
Steel strand wires are straight line, to improve the intensity of steel strand wires, and then ensure the intensity of casting concrete.
Referring to Fig. 4, the schematic flow sheet of its threaded rod making step provided for the present embodiment, threaded rod making step S1
Including following sub-step：
Length determines sub-step S11, and the length of threaded rod is determined according to default pedestal, fixed cross beam and moved cross beam.
Specifically, first, the required default pedestal 1 in bridge construction scene, fixed cross beam 2 and moved cross beam 3 are checked
The relevant parameter of the design parameter or default pedestal 1 of measurement job site, fixed cross beam 2 and moved cross beam 3, such as default pedestal
1 length and fixed cross beam 2 and the maximum elongation value of moved cross beam 3；Then, it is long according to needed for above-mentioned parameter determines threaded rod 4
Degree；For example, it is the elongation maximum of cored slab by 20 meters of crossbeams, its maximal tensility is 613mm, therefore the length of threaded rod 4 is
6m。
Threaded rod confirms sub-step S12, and spiral shell is determined according to the prestress hole opened up in advance on fixed cross beam and moved cross beam
The thread parameter of rasp bar.
Specifically, first, the diameter of the prestress hole opened up in advance on fixed cross beam 2 and moved cross beam 3 is measured；So
Afterwards, the thread parameter of threaded rod 4, such as helical pitch are determined according to the diameter of measurement.
Wherein, length determines that sub-step S11 and threaded rod confirm do not have sequencing between sub-step S12.
Threaded rod processes sub-step S13, and threaded rod is processed according to the length of threaded rod and thread parameter, and according to threaded rod
Parameter choose the bar wiring connector and bar rod connector that are adapted.
Specifically, first, determine that sub-step S11 and threaded rod confirm the threaded rod 4 of sub-step S12 determinations according to length
Parameter, the methods of passing through tapping processes threaded rod 4；Then, phase is chosen according to the parameter of the threaded rod 4 of processing and steel strand wires 7
The bar wiring connector 5 and bar rod connector 6 of adaptation.
Obviously be achieved that, the parameters of threaded rod 4 determined by job site, so be processed making with
Just construction demand is met；The parameter of bar wiring connector 5 and bar rod connector 6 is determined simultaneously by the parameter of threaded rod 4 and steel strand wires 7
Chosen, it is fixed between threaded rod 4 and steel strand wires 7 to ensure, it is ensured that security during steel strand tension.
To sum up, the preparation method for the prestress wire that the present embodiment provides, by by the threaded rod 4 and steel strand wires of processing
7 are used cooperatively, and compared with existing exclusive use steel strand wires, threaded rod 4, which instead of, is arranged at fixed cross beam 2 and moved cross beam 3
Steel strand wires, not only reduce steel strand wires using length to reduce the difficulty of steel strand tension, and threaded rod 4 is compared to steel
Without carrying out tensioning to threaded rod for twisted wire, solves the problems, such as steel strand tension difficulty, and then improve steel strand wires and fix
Quality, so as to improve the quality of construction work, while shortened the cycle of steel strand tension process and subsequent examination, and then
Improve the efficiency of construction；By installing lever connector 6 and bar wiring connector 5, so as between steel strand wires 7 and threaded rod 4 and
Convenient disassembly between threaded rod 4, the efficiency of construction is improved, in addition, threaded rod 4 is using reusable after dismantling.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. preparation method of prestress wire, it is characterised in that including：Threaded rod making step, after making at least four threaded rods according to default pedestal, fixed cross beam and moved cross beam, choose phase The bar wiring connector and bar rod connector of adaptation；Threaded rod installation steps, by the first end for the threaded rod being attached in the fixed cross beam and it is attached to the default pedestal On steel strand wires it is detachably connected by bar wiring connector, and by the second end of the threaded rod being attached in the fixed cross beam 3rd end of the threaded rod with being attached in the moved cross beam is detachably connected by bar rod connector.
- 2. the preparation method of prestress wire according to claim 1, it is characterised in that the threaded rod installation steps Including：Threaded rod pre-fixes sub-step, and the spiral shell is installed respectively in the prestress hole of the fixed cross beam and the moved cross beam Rasp bar makes its end be installed on outside corresponding prestress hole；Connector fixes sub-step, and the bar wiring connector and the bar rod connector are respectively connecting to through the fixation After the first end of the threaded rod of crossbeam and the second end, by the bar wiring connector by the steel strand wires with through the fixation The threaded rod connection of crossbeam；Threaded rod fixes sub-step, will pass through three-terminal link in the threaded rod of the moved cross beam to the bar rod connector On.
- 3. the preparation method of prestress wire according to claim 2, it is characterised in thatFix in sub-step in the connector, set the steel strand wires card to the bar by the intermediate plate of the bar wiring connector In the connector of wiring connector.
- 4. the preparation method of prestress wire according to claim 3, it is characterised in that fixed in the connector Also include before sub-step：Intermediate plate lubricates sub-step, the brushing lubricant between the intermediate plate and connector of the bar wiring connector.
- 5. the preparation method of prestress wire according to claim 3, it is characterised in that fixed in the connector Also include after sub-step：Intermediate plate checks sub-step, checks the installation situation of the intermediate plate and the steel strand wires and ensures that the tensioning of the steel strand wires is pacified Entirely.
- 6. the preparation method of the prestress wire according to any one of claim 1 to 5, it is characterised in that the screw thread Bar making step includes：Length determines sub-step, and the threaded rod is determined according to the default pedestal, the fixed cross beam and the moved cross beam Length；Threaded rod confirms sub-step, and institute is determined according to the prestress hole opened up in advance on the fixed cross beam and the moved cross beam State the thread parameter of threaded rod；Threaded rod processes sub-step, and threaded rod is processed according to the length of the threaded rod and diameter, and according to the parameter of threaded rod Choose the bar wiring connector being adapted and the bar rod connector.
- 7. the preparation method of the prestress wire according to any one of claim 1 to 5, it is characterised in that in the spiral shell Also include before rasp bar installation steps：Steel strand wires installation steps, the steel strand wires of designated length are installed on the default pedestal.
- 8. the preparation method of the prestress wire according to any one of claim 1 to 5, it is characterised in that in the spiral shell Also include after rasp bar installation steps：Nut fixing step, by be arranged at the fixed cross beam and the moved cross beam stress bore ends nut by each spiral shell Rasp bar is fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849350.9A CN107538613A (en) | 2017-09-20 | 2017-09-20 | The preparation method of prestress wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849350.9A CN107538613A (en) | 2017-09-20 | 2017-09-20 | The preparation method of prestress wire |
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| CN107538613A true CN107538613A (en) | 2018-01-05 |
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| CN201710849350.9A Pending CN107538613A (en) | 2017-09-20 | 2017-09-20 | The preparation method of prestress wire |
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| DE2734757A1 (en) * | 1976-08-09 | 1978-02-16 | Alexandre Dipl Ing Birguer | Prestressed concrete beam mfr. - uses threaded steel bars inserted into sheaths joined to screwed sleeves to reduce prestress at supports |
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Application publication date: 20180105 |
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