CN201843261U - Steel strands-woven bundle - Google Patents
Steel strands-woven bundle Download PDFInfo
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- CN201843261U CN201843261U CN2010205525516U CN201020552551U CN201843261U CN 201843261 U CN201843261 U CN 201843261U CN 2010205525516 U CN2010205525516 U CN 2010205525516U CN 201020552551 U CN201020552551 U CN 201020552551U CN 201843261 U CN201843261 U CN 201843261U
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- steel strand
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Abstract
The utility model discloses a steel strands-woven bundle which comprises a plurality of steel strands, wherein each steel strand consists of a center steel wire and a plurality of outer-layer steel wires, the center steel wire at a first end of each steel strand is exposed by 200mm -500mm, the exposed center steel wire of each steel strand is respectively sheathed with a subsidiary duplicating comb line board, the unexposed center steel wire of each steel strand is respectively sheathed with a duplicating comb line board, the duplicating comb line boards and the subsidiary duplicating comb line boards are boards with a plurality of through holes, wherein the number of the through holes corresponds to the number of the steel strands. Due to the limitation of the duplicating comb line boards and the subsidiary duplicating comb line boards, the steel strands can be prevented from being wound, the relative positions of the steel strands can still be kept even if the center steel wires are drawn to lead the steel strands to penetrate through a corrugated pipe or a sheath, and the force applied to the steel strands can be prevented from being uneven since the steel strands are mutually twined caused by the improper bundle penetration.
Description
Technical field
The utility model relates to a kind of building unit, and the steel strand that use when relating in particular to a kind of stretch-draw prestressing force ground tackle are compiled bundle.
Background technology
In buildings such as bridge, highway, use prestressed anchor, for example disclose a kind of two times tensioning prestressed anchor in the Chinese invention patent 200410022950.0, form by backing plate, back nut, anchor ring, intermediate plate through regular meeting.One end of backing plate is fixed in the concrete component, and holding nut is folded the other end in backing plate, adorns anchor ring on the holding nut axis, and anchor ring is axially opened taper hole, and intermediate plate is installed in the anchor ring hole.
Adopt steel strand in most of ground tackles, when ground tackle is installed steel strand are penetrated bellows or sheath is one of important link, existing steel strand, generally form by a core wire and Duo Gen cover wire, penetrate bellows or sheath Chinese invention patent application 200910186022.0 discloses a kind of prestress steel strand penetrating device for the ease of steel strand, it comprises the steel strand confinement ring, also comprise from dilatory plug of anchor and anchor sheet, form by awl rod and post rod again from the dilatory plug of anchor, the bunchy steel strand that are enclosed with from the dilatory plug of anchor are sleeved in the steel strand confinement ring, make the extruding of bunchy steel strand tighten and be close on the inwall of steel strand confinement ring in the space of anchor sheet wedging bunchy steel strand, will be fixed on the wire rope that the artificial traction method of prior usefulness passes from the snap ring installing hole dilatory in place with snap ring from the dilatory plug of anchor with hoist engine.For the ease of the traction steel strand, China's utility model patent 200820035829.5 also discloses a kind of prestress wire drawing head, comprise drawing head and prestress steel twist thread fixing plate, wherein, drawing head contains front end circular cone and rear end hollow cylinder, the inwall of hollow cylinder is to be provided with internal thread, the axle center of circular cone is provided with the towing pad of perforation, the prestress steel twist thread fixing plate is circular steel plate, circular steel plate is provided with the locating hole with the identical number of share of stock of prestress wire, a gauge of wire coupling in the aperture of locating hole and the single steel strand, the outer ring of circular steel plate is provided with screw thread, the internal thread coupling in the hollow cylinder of described screw thread and drawing head.After circular steel plate and multiply steel strand pier nose connect, circular steel plate was connected with drawing head, and drawing head is provided with a pair of fixed head positioning bolt, can prevent that the steel strand fixed head separates with drawing head in distraction procedure.
But owing to take place easily to twine or intersect between many steel strand, not only increased the difficulty when wearing in the prior art, when steel strand are applied prestressing force, also can cause the deviation of prestressing force data simultaneously, influenced result of use.Each steel strand unbalance stress with bundle influences its application life, and stressed big meeting early fatigue fracture causes prestressing force forfeiture after the chain reaction, and then the downwarp of beam body, collapses.
The utility model content
The utility model provides a kind of steel strand to compile bundle, avoided intersection, winding between many steel strand, can directly connect when making prestressed anchor.
A kind of steel strand are compiled bundle, comprise some steel strand, described steel strand are made up of a core wire and Duo Gen cover wire, first end of all steel strand all exposes the core wire of 200～500mm, be with the imitative type comb-line plate of son at the exposed core wire position of steel strand, be with imitative type comb-line plate at the non-exposed core wire position of steel strand, steel strand between the imitative type comb-line plate of imitative type comb-line plate and son are non-intersect in twos, the imitative type comb-line plate of described imitative type comb-line plate and son is the plate that has through hole, and the quantity of through hole is corresponding with the radical of steel strand.
The imitative type comb-line plate of imitative type comb-line plate and son is generally plectane, and under the state that steel strand are unfolded, the steel strand almost parallel between the imitative type comb-line plate of imitative type comb-line plate and son has been avoided twining each other.
Described imitative type comb-line plate near steel strand with the first end second opposed end, and apart from the termination 150～500mm of second end of steel strand.
For first end that makes steel strand exposes core wire, the cover wire of these part steel strand can be peeled off cut-out, as preferably, first end of all steel strand all exposes the core wire of 300～350mm, both having guaranteed has enough drawing lengths, and the waste when having avoided cutting again need prescind when following process owing to expose the part of core wire, therefore when calculating steel strand length, this part need be taken into account.
As preferably, described imitative type comb-line plate is apart from the termination 200～250mm of second end of steel strand.
Described steel strand are compiled intrafascicular, approximately every 1 meter steel strand are carried out colligation, and are at random to prevent it, in order to prevent imitative type comb-line plate dislocation, also can carry out colligation in imitative type comb-line plate both sides in addition.
Along matched in clearance, many steel strand are separated with the gap each other under the qualification of the through hole of imitative type comb-line plate, avoided mutual winding in the through hole on steel strand outer wall and the imitative type comb-line plate.Imitative type comb-line plate is under the prerequisite of the certain support strength of assurance, and its thickness is not strict to be limited, and the distribution of through hole still can penetrate bellows or sheath after can guaranteeing that at least many steel strand are defined position and interval smoothly.
The imitative type comb-line plate shape of described son is identical with imitative type comb-line plate, also be evenly distributed with and the corresponding through hole of steel strand quantity, but undersized, because the imitative type comb-line plate of son only is used to pass, limit core wire, and the diameter of core wire is significantly less than the diameter of whole steel strand, generally speaking, the imitative type comb-line plate diameter of son only is 1/3 of imitative type comb-line plate diameter, the core wire outer wall is interior along matched in clearance with the through hole on the imitative type comb-line plate of son, the imitative type comb-line plate diameter of son is less than the internal diameter of bellows or sheath, so just can make it pass through bellows or sheath.
With core wire according to the position of steel strand under it in imitative type comb-line plate, the corresponding son that passes is imitated the type comb-line plate, can make imitative type comb-line plate and son imitate core wire between the type comb-line plate and corresponding steel strand do not twine each other mutually, avoid producing internal stress.
The termination of the core wire that described steel strand are exposed is installed on the lead seat, has not only avoided the at random of core wire, also is convenient to follow-up traction.
Lead seat is the fixed head of porous, can adopt the heading device that the core wire heading is handled and embed through hole corresponding on the fixed head then, makes core wire can't extract fixed head out, and the fixed head outer wall is threaded.
Lead seat is and connects head and join and use, connect head and be cup-shaped, have internal thread, the threads engaged of this internal thread and fixed head outer wall, connect head drag cable is housed, after connecting head and lead seat screwing by threaded engagement, the drag cable that connects head by pulling can be to the steel strand application of force, make steel strand pass bellows or sheath, also can impose prestressing force steel strand.
In order to guarantee safety, the position of the termination of second end of described steel strand, steel strand peeling outer layer steel wire (being the position that steel strand begin exposed core wire) and the threaded portion of fixed head are enclosed with topping, can adopt adhesive tape to twine and wrap up.
When the utility model steel strand are compiled the bundle use, at first will connect head links to each other by drag cable with draw-gear, introduce bellows or the sheath that passes in the prestressed member with connecting head, to connect head again is tightened with lead seat, start draw-gear and draw, make steel strand compile bundle and connect into interior bellows or the sheath of prestressed member.
Because the external diameter that connects head and the imitative type comb-line plate of son is all less than bellows or sheath internal diameter, therefore steel strand are easy to pass, after steel strand volume bundle connected and finishes, the core wire that steel strand one end is exposed cut away together with lead seat, had just finished steel strand and had compiled connecting of bundle.According to the position corresponding relation of each through hole on the imitative type comb-line plate of imitative type comb-line plate and son, anchor ring is taken a seat to the hole afterwards, be enclosed within on the steel strand, the smooth-going slyness of whole process, steel strand are straight not to be reversed.Remove the imitative type comb-line plate of imitative type comb-line plate and son then, the stretch-draw utensil is installed steel strand are carried out stretch-draw, promptly carry out autofrettage.
The utility model steel strand are compiled bundle, qualification by imitative type comb-line plate and the imitative type comb-line plate of son, avoided the winding of steel strand, even when the centre of pull steel wire makes steel strand pass bellows or sheath, the relative position that still can keep many steel strand avoids the improper steel strand that cause of lashing to twine steel strand unbalance stress when causing stretch-draw mutually.The utility model steel strand are compiled bundle can standardization, componentization, improves the prestressed structure construction quality, saves man-hour.
Description of drawings
Fig. 1 is the schematic cross-section of steel strand in the utility model;
Fig. 2 is the structural representation of imitative type comb-line plate in the utility model;
Fig. 3 compiles the schematic diagram of bundle for the utility model steel strand.
The specific embodiment
Referring to Fig. 1, the steel strand of the utility model steel strand volume Shu Caiyong are made up of a core wire 2 and six roots of sensation cover wire 1, and six roots of sensation cover wire 1 is evenly distributed on core wire 2 peripheries, and the quantity of cover wire also can be more certainly.
Referring to Fig. 2, the imitative type comb-line plate of imitative type comb-line plate that uses in the utility model and son is discoideus, be evenly distributed with and the corresponding through hole of steel strand quantity, only size is different with the imitative type comb-line plate of son for imitative type comb-line plate, the imitative type comb-line plate diameter of son is 1/3 of imitative type comb-line plate diameter, Fig. 2 is an example with imitative type comb-line plate 3, is evenly distributed with and the corresponding through hole 4 of steel strand quantity, i.e. seven through holes.
Referring to Fig. 3, the utility model steel strand are compiled bundle, comprise seven steel strand 5, the right-hand member of all steel strand 5 all exposes the core wire 10 of 300mm, be with the imitative type comb-line plate 9 of son at exposed core wire 10 positions of steel strand 5, be with imitative type comb-line plate 3 at the non-exposed core wire position of steel strand 5, imitative type comb-line plate 3 is apart from the termination 200mm of the left end of steel strand.
The termination of the core wire that steel strand are exposed is installed on the lead seat 13, and lead seat 13 is the fixed head of porous, and the core wire heading is handled the back and embedded through hole corresponding on the fixed head.The fixed head outer wall be threaded be used for connect 11 join and, steel strand 5 left end heads, the position of steel strand 5 peeling outer layer steel wires and the threaded portion of fixed head are enclosed with adhesive tape.
It is as follows that the utility model steel strand are compiled bundle manufacturing process:
(1) seven steel strand 5 of intercepting designated length, every steel strand 5 all are made up of a core wire and six roots of sensation cover wire, and six roots of sensation cover wire is evenly distributed on the core wire periphery.
(2) be that the cover wire at 300mm position is peeled off and cut off with steel strand 5 one end length, only keep core wire 10, steel strand one end exposes the core wire 10 of 300mm like this.
(3) the centre of pull steel wire 10, make steel strand 5 pass through hole corresponding on the imitative type comb-line plate 3, until the terminal and imitative type comb-line plate of steel strand 53 apart from 200mm.
All seven steel strand can pass imitative type comb-line plate 3 (promptly compiling the process of bundle) simultaneously, compile in the bundle process and approximately the steel strand that pass imitative type comb-line plate 3 are carried out colligation every 1 meter, to prevent that it is at random, for example utilize iron wire 6b and iron wire 6c to carry out colligation among the figure, in addition in order to prevent imitative type comb-line plate 3 dislocation, also can carry out colligation in imitative type comb-line plate 3 both sides, utilize iron wire 6d and iron wire 6a to carry out colligation among the figure, be used to limit imitative type comb-line plate 3.
Along matched in clearance, many steel strand are separated with the gap each other under the qualification of the through hole of imitative type comb-line plate 3, avoided mutual winding in the through hole on steel strand 5 outer walls and the imitative type comb-line plate 3.
(4) with core wire 10 according to the position of steel strand under it in imitative type comb-line plate 3, the corresponding imitative type comb-line plate 9 of son that passes;
Imitative type comb-line plate 9 shapes of son are identical with imitative type comb-line plate 3, but diameter only is 1/3 of imitative type comb-line plate 3 diameters, core wire 10 outer walls are interior along matched in clearance with the through hole on the imitative type comb-line plate 9 of son, imitative type comb-line plate 9 diameters of son are less than the internal diameter of bellows or sheath, so just can make it pass through bellows or sheath.
(5) core wire 10 is passed position, extended termination, son imitative type comb-line plate 9 back and be fit into lead seat 13, adopt the heading device to core wire 10 headings, after passing through hole corresponding on the lead seat 13 more respectively, make core wire 10 can't extract lead seat 13 out, lead seat 13 outer walls are threaded;
(6), adopt adhesive tape that the termination 7 of steel strand 5, the position 8 of steel strand 5 peeling outer layer steel wires and the screw thread position of lead seat 13 are wrapped up in order to guarantee safety.
The steel strand that obtain through above step are compiled bundle, by the qualification of imitative type comb-line plate 3 and the imitative type comb-line plate 9 of son, have avoided the winding between many steel strand and the generation of internal stress.
The utility model steel strand are compiled and will be connected a drag cable 12 of 11 when the bundle construction is used and link to each other with rack winch, introduce the bellows that passes in the prestressed member with connecting 11, to connect 11 again and be tightened, and start rack winch and draw with lead seat 13.Since connect 11 and the external diameter of the imitative type comb-line plate 9 of son all less than inside diameter of bel, so steel strand are easy to pass bellows.After whole bundle steel strand connected and finish, the core wire 10 that steel strand 5 one ends are exposed cut away together with lead seat 13, finishes connecting of whole bundle steel strand.According to the corresponding sign of imitative type comb-line plate 3, anchor ring is taken a seat to the hole afterwards, be enclosed within on the steel strand with the imitative type comb-line plate 9 of son, the smooth-going slyness of whole process, steel strand are straight not to be reversed.Remove the imitative type comb-line plate 9 of imitative type comb-line plate 3 and son then, the stretch-draw utensil is installed steel strand are carried out stretch-draw.
The utility model steel strand are compiled bundle can effectively avoid twining mutually steel strand unbalance stress when causing stretch-draw in transportation, when using.
Claims (10)
1. steel strand are compiled bundle, comprise some steel strand, it is characterized in that, described steel strand are made up of a core wire and Duo Gen cover wire, first end of all steel strand all exposes the core wire of 200～500mm, be with the imitative type comb-line plate of son at the exposed core wire position of steel strand, be with imitative type comb-line plate at the non-exposed core wire position of steel strand, the imitative type comb-line plate of described imitative type comb-line plate and son is the plate that has through hole, the quantity of through hole is corresponding with the radical of steel strand, and every steel strand pass corresponding through hole.
2. steel strand as claimed in claim 1 are compiled bundle, it is characterized in that, first end of all steel strand all cuts off the core wire that cover wire exposes 300～350mm by peeling off.
3. steel strand as claimed in claim 1 are compiled bundle, it is characterized in that, described imitative type comb-line plate near steel strand with the first end second opposed end, and apart from the termination 150～500mm of second end of steel strand.
4. steel strand as claimed in claim 3 are compiled bundle, it is characterized in that described imitative type comb-line plate is apart from the termination 200～250mm of second end of steel strand.
5. steel strand as claimed in claim 1 are compiled bundle, it is characterized in that, the through hole on the outer wall of described steel strand and the imitative type comb-line plate is interior along matched in clearance.
6. steel strand volume bundle as claimed in claim 5 is characterized in that, the outer wall of described core wire is interior along matched in clearance with the through hole on the imitative type comb-line plate of son.
7. steel strand as claimed in claim 6 are compiled bundle, it is characterized in that, the imitative type comb-line plate diameter of described son is 1/3 of imitative type comb-line plate diameter.
8. compile bundle as each described steel strand of claim 1～7, it is characterized in that, the termination of the core wire that described steel strand are exposed is installed on the lead seat, and lead seat is the fixed head of porous, and the core wire heading is handled the back and embedded through hole corresponding on the fixed head.
9. steel strand as claimed in claim 8 are compiled bundle, it is characterized in that described fixed head outer wall is threaded.
10. steel strand as claimed in claim 9 are compiled bundle, it is characterized in that, termination, the steel strand of second end of described steel strand begin the position of exposed core wire and the threaded portion of fixed head is enclosed with topping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205525516U CN201843261U (en) | 2010-10-08 | 2010-10-08 | Steel strands-woven bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205525516U CN201843261U (en) | 2010-10-08 | 2010-10-08 | Steel strands-woven bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843261U true CN201843261U (en) | 2011-05-25 |
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ID=44038154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205525516U Expired - Fee Related CN201843261U (en) | 2010-10-08 | 2010-10-08 | Steel strands-woven bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949219A (en) * | 2010-10-08 | 2011-01-19 | 天津滨海盈信投资有限公司 | Steel strand bundle |
| CN103088547A (en) * | 2013-01-30 | 2013-05-08 | 建科机械（天津）股份有限公司 | Steel strand combing and bundling production line |
| CN110409835A (en) * | 2019-08-21 | 2019-11-05 | 广西路建工程集团有限公司 | Hinging device for cable-stayed bridge and its construction method in a kind of post-stressed bellows |
-
2010
- 2010-10-08 CN CN2010205525516U patent/CN201843261U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949219A (en) * | 2010-10-08 | 2011-01-19 | 天津滨海盈信投资有限公司 | Steel strand bundle |
| CN103088547A (en) * | 2013-01-30 | 2013-05-08 | 建科机械（天津）股份有限公司 | Steel strand combing and bundling production line |
| CN103088547B (en) * | 2013-01-30 | 2014-06-18 | 建科机械（天津）股份有限公司 | Steel strand combing and bundling production line |
| CN110409835A (en) * | 2019-08-21 | 2019-11-05 | 广西路建工程集团有限公司 | Hinging device for cable-stayed bridge and its construction method in a kind of post-stressed bellows |
| CN110409835B (en) * | 2019-08-21 | 2023-07-25 | 广西路建工程集团有限公司 | Post-tensioning prestressed corrugated pipe inner beam penetrating device and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20121008 |