CN114352030A - Self-locking prestressed steel strand pulling and paying-off device and construction process thereof - Google Patents
Self-locking prestressed steel strand pulling and paying-off device and construction process thereof Download PDFInfo
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- CN114352030A CN114352030A CN202210040871.0A CN202210040871A CN114352030A CN 114352030 A CN114352030 A CN 114352030A CN 202210040871 A CN202210040871 A CN 202210040871A CN 114352030 A CN114352030 A CN 114352030A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention provides a self-locking prestressed steel strand pulling and paying-off device and a construction process thereof, wherein the self-locking prestressed steel strand pulling and paying-off device comprises an outer ring frame; the inner ring frame is connected with the outer ring frame through a diagonal bar rib, wherein the diagonal bar rib is arranged along the diagonal line of the outer ring frame; the sliding plate is connected with the diagonal bar rib in a sliding mode and can slide along the arrangement direction of the diagonal bar rib; and a fixing member detachably coupled to the sliding plate, wherein the fixing member constitutes a restriction space to restrict the steel strand. Compared with the prior art, the invention has the following beneficial effects: the structure is simple, stable and reliable, and the operability is strong; the construction method is simple to operate, high in speed and remarkable in effect; standardized manufacturing can be carried out, the cost is saved, and the construction period is shortened; the construction is safe and the operation is civilized.
Description
Technical Field
The invention relates to the technical field of steel strand pulling, in particular to a self-locking prestressed steel strand pulling and paying-off device and a construction process thereof.
Background
In the construction of the existing prestressed concrete box girder, the tensioning of the prestressed steel beam is required to be implemented, and a certain prestress is applied to the concrete box girder so as to improve the bearing capacity and the durability of the box girder. Therefore, the drawing of the prestressed steel strands becomes one of the crucial steps. The steel strand materials are usually wound into bundles, each bundle of steel strand is about 3-4 tons, and if the steel strand is not bound by a constraint device after being loose, the steel strand is completely bounced off in the process of bundle penetrating and paying off, normal bundle penetrating operation of the prestressed steel strand cannot be carried out, so that the working efficiency is influenced, and safety accidents are possibly caused.
Traditional steel strand wires are worn to restraint pay-off is adopted scaffold steel pipe to tie up whole bundle of steel strand wires and is worn to restraint unwrapping wire operation usually, and this kind of traditional steel strand wires are worn to restraint unwrapping wire and have following not enough: 1. the steel pipe has large usage amount, complicated installation and low work efficiency; 2. in the process of bundling and paying off, the random relaxation of the steel strand is not easy to control, and the steel strand is easy to pop out to hurt people; 3. the ejected steel strand is often wound, so that the amount of the steel strand wasted is large, and the steel strand is not beneficial to bundle threading and paying off; 4. the steel pipe is bound and clamped to bundle the steel stranded wires for paying off, the construction mode is not standard, and the operation requirements of site safety and civilized construction are difficult to meet; 5. the movable type concrete pile is inconvenient to move and difficult to meet the actual construction requirement on site. This is the technical problem to be solved by the present invention.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides a self-locking prestressed steel strand pulling and paying-off device in a first aspect.
The invention provides a construction process of a self-locking prestressed steel strand pulling and paying-off device.
The invention provides a self-locking prestressed steel strand pulling and paying-off device which comprises an outer ring frame; the inner ring frame is connected with the outer ring frame through a diagonal bar rib, wherein the diagonal bar rib is arranged along the diagonal line of the outer ring frame; the sliding plate is connected with the diagonal bar rib in a sliding mode and can slide along the arrangement direction of the diagonal bar rib; and a fixing member detachably coupled to the sliding plate, wherein the fixing member constitutes a restriction space to restrict the steel strand.
The invention provides a self-locking prestressed steel strand pulling and paying-off device which comprises an outer ring frame, an inner ring frame, a diagonal bar rib, a sliding plate and a fixing assembly. The outer ring frame and the inner ring frame are connected into a whole through the diagonal bar rib, and the outer ring frame and the inner ring frame are located in the same plane, so that the overall strength is guaranteed, and the space occupation is reduced. Sliding plate and down tube muscle sliding connection, because the down tube muscle is arranged along the diagonal of outer ring frame, therefore the slip direction of sliding plate is the same with above-mentioned direction to when guaranteeing that the sliding plate drives fixed subassembly and do towards outer ring frame interior angle and be close to the motion, restriction space volume increase, consequently make things convenient for the hoist and mount of steel strand wires to place, when the sliding plate drives fixed subassembly and keeps away from outer ring frame interior angle motion, restriction space volume reduces, consequently can play the effect fixed with the restriction to the steel strand wires that are located the restriction space. Of course, the above process is also applicable to steel strands of different specifications, when the specification of the steel strand is larger, the volume of the limited space is increased to ensure that a large enough accommodating space is provided, and the specification of the steel strand is reduced along with the use of the steel strand. The volume of the confining space is now reduced to ensure that a sufficiently large fixing force and confining force are provided. Whole simple structure, be convenient for operation and removal not only can realize providing reliable and stable confining force and stationary force to the steel strand wires to guarantee operating personnel's safety, avoid the steel strand wires to relax and hinder the people, can also abandon the loaded down with trivial details and the inefficiency problem of installation that uses the steel pipe to bring, thereby realize standard safe construction process, satisfy the operation requirement of on-the-spot civilized construction.
The self-locking prestressed steel strand pulling and paying-off device according to the technical scheme of the invention can also have the following additional technical characteristics:
in the above technical solution, the fixing assembly includes: a threaded rod having a threaded hole, the threaded rod being screwed into the threaded hole; and the fixing nut is screwed on the threaded rod.
In this technical scheme, fixed subassembly includes threaded rod and fixation nut. Two ends of the threaded rod are respectively screwed in the threaded holes of the sliding plate, so that the synchronism with the movement of the sliding plate is ensured. The fixing nut is used for fastening the threaded rod. The design of this structure is simpler and the operation of being convenient for, and threaded rod and fixation nut all can unify batch production to improve the efficiency of construction.
In the above technical solution, the diagonal bar ribs at least include a plurality of groups, and every two diagonal bar ribs form a group of slideways along the diagonal direction of the outer ring frame.
In the technical scheme, the diagonal bar rib at least comprises a plurality of groups. The number of the inner ring frames is determined according to the shapes of the outer ring frames and the inner ring frames, and preferably, the outer ring frames and the inner ring frames are both rectangular frame structures. A group of sliding plates are arranged at each inner angle of the outer ring frame, so that the sliding plates are guaranteed to drive the fixed component to slide according to the preset route of the slide way, the sliding direction of the fixed component is further limited, and deviation of the fixed component is avoided.
In the above technical solution, the sliding plates at least include a plurality of sets, and each two sliding plates form a set and are clamped on the slide way.
In the present solution, the sliding plate comprises at least a plurality of sets. The number of the inclined bars is matched with that of the inclined bars. As long as the two sliding plates can slide on the slideway. In addition, the matching between the sliding plate and the sliding is only one of the sliding forms, and the sliding forms with other structures can be replaced, and the matching is not limited in particular, and the sliding form along the diagonal direction of the outer ring frame is within the protection scope of the technical scheme as long as the sliding form is realized.
In the above technical solution, the threaded hole is formed in the center of the sliding plate, and the threaded rod is screwed into the threaded hole through the slide way.
In this technical scheme, the threaded rod passes the slide and connects soon in the screw hole. The slide way is used for limiting the sliding direction of the threaded rod and avoiding the deviation of the sliding direction.
In the above technical solution, the outer ring frame has at least one placing surface, and the placing surface has a planar structure.
In this solution, the resting surface is intended to be in contact with the ground or with other flat surfaces. Therefore, the placing surface is guaranteed to be of a plane structure, the whole stability of the device can be guaranteed, the device is prevented from inclining or shaking, and the whole safety of the device is improved.
In the above technical solution, the outer ring frame is a rectangular frame structure formed by four rod bodies.
In this technical scheme, the outer ring frame comprises four body of rod, preferably adopts the welded mode to constitute integrated into one piece's structure to improve the bulk strength, avoid the fracture. In addition, the rectangular frame structure is only one form, and the outer ring frames with other shapes and structures determined according to actual working conditions are within the protection scope of the technical scheme, and are not specifically limited herein.
In the above technical solution, the inner ring frame has a rectangular frame structure formed by four rod bodies, and the size of the inner ring frame is smaller than that of the outer ring frame.
In the technical scheme, the inner ring frame is composed of four rod bodies, and an integrally formed structure is preferably formed in a welding mode, so that the overall strength and rigidity are improved. In addition, the rectangular frame structure is only one form, and the inner ring frames with other shapes and structures determined according to actual working conditions are within the protection scope of the technical scheme, and are not specifically limited herein.
In the above technical solution, the centers of the outer ring frame and the inner ring frame are overlapped.
In this technical scheme, the center of outer ring frame and interior ring frame overlaps, guarantees that outer ring frame and interior ring frame are in the coplanar to avoid occupying unnecessary space, and can optimize overall structure.
The invention also provides a construction process of the self-locking type prestress steel strand pulling and paying-off device, which is applied to the self-locking type prestress steel strand pulling and paying-off device in any one technical scheme and is characterized by comprising the following steps of:
manufacturing an outer ring frame;
manufacturing an inner ring frame;
installing a sliding plate and a fixed component;
hoisting the steel strand, namely hoisting the steel strand into a limited space;
locking the fixing component;
and (6) mounting and checking.
Compared with the prior art, the invention has the following beneficial effects:
1. simple structure, it is reliable and stable, maneuverability is strong.
2. The construction method is simple to operate, high in speed and remarkable in effect.
3. Standardized manufacturing can be carried out, the cost is saved, and the construction period is shortened.
4. The construction is safe and the operation is civilized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of the self-locking prestressed steel strand pulling and paying-off device of the present invention;
FIG. 2 is a side view of the self-locking prestressed steel strand pulling and paying-off device of the present invention;
fig. 3 is a perspective view of the self-locking prestressed steel strand pulling and paying-off device.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
1. an outer ring frame; 2. an inner ring frame; 3. a diagonal bar rib; 4. a sliding plate; 5. a threaded rod; 6. fixing a nut; 7. and (4) steel strands.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The self-locking prestressed steel strand pulling and paying-off device and the construction process thereof provided by some embodiments of the invention are described below with reference to fig. 1 to 3.
Some embodiments of the present application provide a self-locking prestressed steel strand pulling and paying-off device.
As shown in fig. 1 to 3, a first embodiment of the present invention provides a self-locking prestressed steel strand pulling and paying-off device, which includes an outer ring frame 1; the inner ring frame 2 is connected with the outer ring frame 1 through a diagonal bar rib 3, wherein the diagonal bar rib 3 is arranged along the diagonal line of the outer ring frame 1; a slide plate 4 slidably connected to the diagonal bar rib 3 and slidable in the arrangement direction of the diagonal bar rib 3; and a fixing member detachably coupled to the sliding plate 4, wherein the fixing member constitutes a restriction space to restrict the steel strand 7.
The invention provides a self-locking prestressed steel strand 7 strand pulling and paying-off device which comprises an outer ring frame 1, an inner ring frame 2, a diagonal bar rib 3, a sliding plate 4 and a fixing component. The outer ring frame 1 and the inner ring frame 2 are connected into a whole through the inclined rod ribs 3, and the outer ring frame 1 and the inner ring frame 2 are located in the same plane, so that the overall strength is guaranteed, and the occupation of space is reduced. Sliding plate 4 and 3 sliding connection of down tube muscle, because the diagonal of down tube muscle 3 along outer ring frame 1 arranges, therefore sliding plate 4's slip direction is the same with above-mentioned direction, thereby guarantee that sliding plate 4 drives fixed subassembly and do towards when being close to the motion to 1 interior angle of outer ring frame, restriction space volume increases, consequently, make things convenient for the hoist and mount of steel strand wires 7 to place, when sliding plate 4 drives fixed subassembly and keeps away from 1 interior angle motion of outer ring frame, restriction space volume reduces, consequently, can play the effect of fixing and restriction to steel strand wires 7 that are located the restriction space. Of course, the above process is also applicable to the steel strand 7 with different specifications, and when the specification of the steel strand 7 is larger, the volume of the limited space is increased to ensure that a large enough accommodating space is provided, and the specification of the steel strand 7 is reduced along with the use of the steel strand. The volume of the confining space is now reduced to ensure that a sufficiently large fixing force and confining force are provided. Whole simple structure, be convenient for operation and removal not only can realize providing reliable and stable confining force and stationary force to steel strand wires 7 to guarantee operating personnel's safety, avoid steel strand wires 7 to relax and hinder the people, can also abandon the loaded down with trivial details and the inefficiency problem of installation that uses the steel pipe to bring, thereby realize standardizing safe construction process, satisfy the operation requirement of on-the-spot civilized construction.
The invention provides a self-locking prestressed steel strand pulling and paying-off device in a second embodiment, and on the basis of the first embodiment, the fixing assembly comprises: a threaded rod 5, wherein the sliding plate 4 is provided with a threaded hole, and the threaded rod 5 is screwed in the threaded hole; and the fixed nut 6 is screwed on the threaded rod 5.
In this embodiment, the fixing assembly comprises a threaded rod 5 and a fixing nut 6. Two ends of the threaded rod 5 are respectively screwed in the threaded holes of the sliding plate 4, so that the synchronism with the movement of the sliding plate 4 is ensured. The fixing nut 6 is used to tighten the threaded rod 5. The design of this structure is simpler and the operation of being convenient for, and threaded rod 5 and fixation nut 6 all can unify batch production to improve the efficiency of construction.
The third embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the embodiments, the inclined rod ribs 3 at least comprise a plurality of groups, and every two inclined rod ribs 3 form a group of slideways along the diagonal direction of the outer ring frame 1.
In the present embodiment, the diagonal reinforcement 3 includes at least a plurality of sets. The number of the inner ring frames is determined according to the shapes of the outer ring frame 1 and the inner ring frame 2, and preferably, the outer ring frame 1 and the inner ring frame 2 are both rectangular frame structures. Each inner angle of the outer ring frame 1 is provided with a group of sliding plates, so that the sliding plates 4 are ensured to drive the fixed components to slide according to the preset route of the slide ways, the sliding direction of the fixed components is further limited, and the deviation of the fixed components is avoided.
The fourth embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the embodiments, the sliding plates 4 at least comprise a plurality of groups, and each two sliding plates 4 form one group and are clamped on the slide way.
In the present embodiment, the sliding plate 4 includes at least a plurality of sets. The number of which is adapted to the number of the diagonal rods 3. As long as it is ensured that the two sliding plates 4 can slide on the slideway. In addition, the matching between the sliding plate 4 and the sliding is only one type of sliding form, and the sliding form may be replaced if there is another sliding form, and it is not limited in detail here, and it is within the protection scope of the present technical solution as long as the sliding form along the diagonal direction of the outer ring frame 1 is realized.
The fifth embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any embodiment, the threaded hole is formed in the center of the sliding plate 4, and the threaded rod 5 is screwed in the threaded hole through the slideway.
In this embodiment, the threaded rod 5 is screwed into the threaded hole through the slideway. The slide way is used for limiting the sliding direction of the threaded rod 5 and avoiding the deviation of the sliding direction.
The sixth embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the embodiments, the outer ring frame 1 is at least provided with a placing surface, and the placing surface is of a plane structure.
In this embodiment, the resting surface is intended to be in contact with the ground, or other flat surface. Therefore, the placing surface is guaranteed to be of a plane structure, the whole stability of the device can be guaranteed, the device is prevented from inclining or shaking, and the whole safety of the device is improved.
The seventh embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the embodiments, the outer ring frame 1 is of a rectangular frame structure formed by four rod bodies.
In this embodiment, the outer ring frame 1 is composed of four rod bodies, and preferably, an integrally formed structure is formed by welding, so that the overall strength is improved, and the breakage is avoided. In addition, the rectangular frame structure is only one form, and the outer ring frame 1 which is determined to have other shapes and structures according to actual working conditions is within the protection scope of the technical scheme, and is not specifically limited herein.
The eighth embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the embodiments, the inner ring frame 2 is of a rectangular frame structure formed by four rod bodies, and the size of the inner ring frame is smaller than that of the outer ring frame 1.
In this embodiment, the inner ring frame 2 is formed by four rod bodies, and preferably, an integrally formed structure is formed by welding, so as to improve the overall strength and rigidity. In addition, the rectangular frame structure is only one form, and the inner ring frames 2 with other shapes and structures determined according to actual working conditions are within the protection scope of the technical scheme, and are not specifically limited herein.
The ninth embodiment of the invention provides a self-locking prestressed steel strand pulling and paying-off device, and on the basis of any one of the above embodiments, the centers of the outer ring frame 1 and the inner ring frame 2 are overlapped.
In this embodiment, the centers of the outer ring frame 1 and the inner ring frame 2 are overlapped to ensure that the outer ring frame 1 and the inner ring frame 2 are in the same plane, thereby avoiding occupying redundant space and optimizing the whole structure.
The tenth embodiment of the invention provides a construction process of a self-locking type prestress steel strand pulling and paying-off device, which is applied to the self-locking type prestress steel strand pulling and paying-off device in any one of the embodiments, and is characterized by comprising the following steps of:
manufacturing an outer ring frame;
manufacturing an inner ring frame;
installing a sliding plate and a fixed component;
hoisting the steel strand, namely hoisting the steel strand into a limited space;
locking the fixing component;
and (6) mounting and checking.
In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a from locking-type prestressing force steel strand wires strand pulling pay-off which characterized in that includes:
an outer ring frame;
the inner ring frame is connected with the outer ring frame through a diagonal bar rib, wherein the diagonal bar rib is arranged along the diagonal line of the outer ring frame;
the sliding plate is connected with the diagonal bar rib in a sliding mode and can slide along the arrangement direction of the diagonal bar rib;
and a fixing member detachably coupled to the sliding plate, wherein the fixing member constitutes a restriction space to restrict the steel strand.
2. The self-locking prestressed steel strand pulling and paying-off device of claim 1, wherein the fixing assembly comprises:
a threaded rod having a threaded hole, the threaded rod being screwed into the threaded hole;
and the fixing nut is screwed on the threaded rod.
3. The self-locking prestressed strand pulling and paying-off device as claimed in claim 2, wherein the diagonal bars comprise at least a plurality of groups, and each two diagonal bars form a group of slideways along the diagonal direction of the outer ring frame.
4. The self-locking prestressed steel strand pulling and paying-off device as claimed in claim 3, wherein the sliding plates comprise at least a plurality of sets, and each two sliding plates form one set and are clamped on the slideway.
5. The self-locking prestressed steel strand pulling and paying-off device as claimed in claim 4, wherein the threaded hole is formed in a central position of the sliding plate, and the threaded rod is screwed in the threaded hole through the slide way.
6. The self-locking prestressed steel strand pulling and paying-off device as claimed in claim 5, wherein the outer ring frame has at least one placing surface, and the placing surface has a planar structure.
7. The self-locking prestressed steel strand pulling and paying-off device as claimed in any one of claims 1 to 6, wherein the outer ring frame is a rectangular frame structure consisting of four rod bodies.
8. The self-locking prestressed steel strand pulling and paying-off device as claimed in any one of claims 1 to 6, wherein the inner ring frame is a rectangular frame structure formed by four rod bodies, and the size of the rectangular frame structure is smaller than that of the outer ring frame.
9. The self-locking prestressed steel strand pulling and paying-off device as claimed in any one of claims 1 to 4, wherein centers of the outer ring frame and the inner ring frame overlap.
10. The construction process of the self-locking prestressed steel strand pulling and paying-off device, which is applied to the self-locking prestressed steel strand pulling and paying-off device as claimed in claim 9, is characterized by comprising the following steps of:
manufacturing an outer ring frame;
manufacturing an inner ring frame;
installing a sliding plate and a fixed component;
hoisting the steel strand, namely hoisting the steel strand into a limited space;
locking the fixing component;
and (6) mounting and checking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210040871.0A CN114352030A (en) | 2022-01-14 | 2022-01-14 | Self-locking prestressed steel strand pulling and paying-off device and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210040871.0A CN114352030A (en) | 2022-01-14 | 2022-01-14 | Self-locking prestressed steel strand pulling and paying-off device and construction process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114352030A true CN114352030A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210040871.0A Pending CN114352030A (en) | 2022-01-14 | 2022-01-14 | Self-locking prestressed steel strand pulling and paying-off device and construction process thereof |
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| Country | Link |
|---|---|
| CN (1) | CN114352030A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466863A (en) * | 2018-04-10 | 2018-08-31 | 中冶建工集团有限公司 | A kind of solution bundle line-putting method of prestress wire |
| CN110171740A (en) * | 2019-05-29 | 2019-08-27 | 中建中新建设工程有限公司 | A kind of prestress wire fixed frame and its installation and application |
| CN212450008U (en) * | 2019-12-04 | 2021-02-02 | 中交第二航务工程局有限公司 | Fixed pay-off is rolled up to prestressing force steel strand |
| CN214399282U (en) * | 2021-01-29 | 2021-10-15 | 中国葛洲坝集团第三工程有限公司 | Steel strand limiting and fixing device |
-
2022
- 2022-01-14 CN CN202210040871.0A patent/CN114352030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466863A (en) * | 2018-04-10 | 2018-08-31 | 中冶建工集团有限公司 | A kind of solution bundle line-putting method of prestress wire |
| CN110171740A (en) * | 2019-05-29 | 2019-08-27 | 中建中新建设工程有限公司 | A kind of prestress wire fixed frame and its installation and application |
| CN212450008U (en) * | 2019-12-04 | 2021-02-02 | 中交第二航务工程局有限公司 | Fixed pay-off is rolled up to prestressing force steel strand |
| CN214399282U (en) * | 2021-01-29 | 2021-10-15 | 中国葛洲坝集团第三工程有限公司 | Steel strand limiting and fixing device |
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