CN115976989B - Hollow prestress steel strand - Google Patents
Hollow prestress steel strand Download PDFInfo
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- CN115976989B CN115976989B CN202310279656.0A CN202310279656A CN115976989B CN 115976989 B CN115976989 B CN 115976989B CN 202310279656 A CN202310279656 A CN 202310279656A CN 115976989 B CN115976989 B CN 115976989B
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- connecting rod
- rod
- joint
- steel strand
- line body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The application relates to a cavity prestressing force steel strand wires relates to the technical field of building engineering material, including the line body, the line body outside is equipped with a plurality of evenly distributed's joint, and is adjacent be equipped with the multiunit between the joint around line body evenly distributed's location supporting component, location supporting component includes parallel and relative head rod and second connecting rod, the one end of head rod is installed on the joint, the one end of second connecting rod is installed another on the joint, the one end of head rod articulates there is curved supporting shoe, the supporting shoe is kept away from the butt has the stopper on the cambered surface of one side of second connecting rod, stopper sliding connection is in on the head rod, just the stopper with the second connecting rod rotates to be connected. This application has the effect that improves steel strand wires and bellows connection fastness.
Description
Technical Field
The application relates to the field of building engineering materials, in particular to a hollow prestress steel strand.
Background
The steel strand is a steel product formed by twisting a plurality of steel wires, wherein the steel product comprises a prestressed steel strand, the prestressed steel strand comprises a low-relaxation prestressed steel strand without a coating, and the prestressed steel strand is commonly used for bridges, buildings, water conservancy, energy sources, geotechnical engineering and the like, and the prestressed steel strand also comprises an unbonded prestressed steel strand, and is commonly used for floors, foundation engineering and the like.
When building such as bridge carries out reinforcement engineering, erect the bellows in the both sides of bridge generally to wear to establish the prestressing force steel strand wires in the bellows, anchor and tensioning the prestressing force steel strand wires at prestressing force steel strand wires both ends, later let in the concrete to the bellows, thereby accomplish the fixed of bellows and prestressing force steel strand wires.
However, when grouting is performed to the inside of the corrugated pipe, the position of the steel strand in the corrugated pipe is unstable, and the position where the steel strand contacts the corrugated pipe is difficult to fill with concrete, so that the corrugated pipe and the prestressed steel strand cannot be firmly combined, and the reinforcing quality of the bridge is difficult to ensure.
Disclosure of Invention
The purpose of the application is to provide a hollow prestress wire.
The application provides a cavity prestressing force steel strand adopts following technical scheme:
the utility model provides a cavity prestressing force steel strand wires, includes the line body, the line body outside is equipped with a plurality of evenly distributed's joint, and is adjacent be equipped with the multiunit between the joint around line body evenly distributed's location supporting component, location supporting component includes parallel and relative head rod and second connecting rod, the one end of head rod is installed one on the joint, the one end of second connecting rod is installed another on the joint, the one end of head rod articulates there is curved supporting shoe, the supporting shoe is kept away from the butt has the stopper on the cambered surface of one side of second connecting rod, stopper sliding connection is in on the head rod, just the stopper with the second connecting rod rotates to be connected.
Through adopting above-mentioned technical scheme, cavity prestressing force steel strand wires interlude get into inside the bellows and both ends are anchored the back, the line body both ends are stretched, make the whole extension of being pulled of line body, make the distance grow between two adjacent junction links, and then make head rod and second connecting rod keep away from each other, in this process, the arcwall face extrusion supporting shoe of stopper along the supporting shoe, make the one end that the stopper was kept away from to the supporting shoe one side perk far away from the line body, and the butt is on the inside wall of bellows, butt bellows simultaneously through a plurality of supporting shoes, make the line body supported and the center department of location at the bellows, thereby when concrete is poured into inside the bellows, the space between line body and the bellows inner wall can make concrete fully flow and fill, thereby make line body and bellows firmly connect, and then improve holistic connection quality, in addition, the supporting shoe is fixed by concrete after, can play firm effect, thereby further improve connection stability.
Optionally, a protective sleeve wrapping the wire body is arranged between the adjacent connecting joints, a positioning groove is formed in the side wall of the protective sleeve, and the positioning support assembly is located in the positioning groove.
Through adopting above-mentioned technical scheme, protective sheath protection and fixed line body to improve the fastness of being connected with concrete, location supporting component is located the constant head tank, make head rod and second connecting rod protected in the constant head tank, reduce location supporting component and receive the possibility of impact, improve holistic stability.
Optionally, the outer diameter of the connecting joint is larger than the outer diameter of the protective sleeve, and the section of the annular side surface of the connecting joint is arc-shaped.
Through adopting above-mentioned technical scheme, the cross-section of the annular lateral wall of junction is the arc for the concrete can remove along the cambered surface of junction, reduces the connection dead angle between junction and the protective sheath, makes the concrete can fully fill, and in addition, the fastness that the line body and concrete are connected can be improved to the wave-like structure that junction and protective sheath formed.
Optionally, a spring is arranged between the supporting block and the first connecting rod and used for driving the supporting block to rotate towards the inside of the positioning groove.
Through adopting above-mentioned technical scheme, under the effect of spring, the supporting shoe is the butt all the time on the stopper, and simultaneously when the line body was not by the tensioning, the supporting shoe wholly was located the constant head tank, did not penetrate the bellows from this and cause the hindrance to the line body, improved the efficiency of construction of whole work.
Optionally, the one end that the first connecting rod kept away from the second connecting rod is equipped with the perpendicular to the clamping rod of first connecting rod, the second connecting rod kept away from the one end of first connecting rod is equipped with the same clamping rod, offered the joint groove that the cross-section is T shape on the link, joint groove one end intercommunication is external, the inside grafting of joint groove both ends in addition all clamping rod.
Through adopting above-mentioned technical scheme, the clamping pole is pegged graft from the external one end of clamping groove intercommunication and is got into the clamping inslot, removes the one end in the other both ends of clamping groove afterwards to can carry out limited-range slip in the one end inside of clamping groove, can make the line body crooked in the angle of certain limit from this, and make head rod and second connecting rod can slide in certain limit, make the supporting shoe can rotate the submergence in the constant head tank.
Optionally, a limit bolt is arranged on the connecting joint, and the limit bolt passes through the connecting joint and simultaneously passes through the clamping groove to be communicated with one end of the outside.
Through adopting above-mentioned technical scheme, stop bolt blocks the one end in joint groove intercommunication external for the clamping rod is blockked at stop bolt, and the clamping rod is restricted in the joint inslot from this, and then improves the fastness that head rod and second connecting rod and junction are connected.
Optionally, a plurality of fan blades are arranged on two sides of the first connecting rod, and a plurality of fan blades are also arranged on two sides of the second connecting rod.
Through adopting above-mentioned technical scheme, concrete is pouring the in-process, and concrete removes along the bellows to promote the flabellum rotation, the flabellum is stirring concrete in rotation in-process from this, and then makes the concrete evenly distributed on the line body, reduces the space, thereby improves the fastness of connection.
Optionally, the inside screw thread that cooperates with screw thread on the line body that is equipped with of junction node, just be equipped with set screw on the junction node, set screw one end penetrates the junction node and butt is in on the line body.
Through adopting above-mentioned technical scheme, the joint passes through screw joint cooperation with the line body for the joint is difficult to remove along the central line direction of line body, and set screw further fixed joint and line body, makes the joint be difficult to rotate relative to the line body, improves the connection stability of joint and line body from this.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the positioning support assembly enables the wire body to be positioned at the middle part of the corrugated pipe after tensioning prestressing, and additional adjustment operation is not needed, so that additional operation steps are not brought while the positioning wire body is supported, the convenience of overall engineering is improved, and the firmness of connection is further improved;
2. the connecting structure of the connecting joint and the wire body makes the connecting joint difficult to move relatively to the wire body, and further improves the stability of the whole structure.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of a connection structure of a connection joint and a first connection rod and a second connection rod according to an embodiment of the present application;
FIG. 3 is a schematic view of a positioning support assembly according to an embodiment of the present application;
in the figure, 1, a wire body; 2. a connecting joint; 21. a clamping groove; 22. a set screw; 3. a protective sleeve; 31. a positioning groove; 4. positioning the support assembly; 41. a first connecting rod; 411. a first connection groove; 42. a second connecting rod; 421. a second connecting groove; 43. a support block; 44. a limiting block; 45. a support rod; 46. a spring; 47. a clamping rod; 5. and (3) a fan blade.
Detailed Description
The present application is described in further detail below with reference to fig. 1-3.
Examples: a hollow prestressed steel strand, referring to fig. 1, includes a wire body 1 formed by hinging six steel wires, the center of the wire body 1 is hollow, a mold is provided at the center of the wire body 1 during the manufacturing process, and then the steel wires are twisted on the mold, thereby forming the wire body 1, and then the mold is separated from the wire body 1.
The outside cover of the wire body 1 is equipped with a plurality of connecting links 2 that evenly distributed along the central line of the wire body 1, and connecting links 2 set up to the ring form, and one side that is close to the wire body 1 of connecting links 2 sets up to the screw form, and cooperates with the screw joint on the lateral wall of the wire body 1. The connecting joint 2 is provided with a plurality of positioning screws 22 distributed on the central line of the winding body 1, one end of each positioning screw 22 penetrates through the connecting joint 2 and is in threaded connection with the connecting joint 2, and one end of each positioning screw 22 penetrating through the connecting joint 2 is abutted to the outer wall of the winding body 1 and is clamped at the joint between adjacent steel wires.
The protective sleeve 3 sleeved on the wire body 1 is arranged between the adjacent connecting joints 2, two ends of the protective sleeve 3 are respectively fixed on the two adjacent connecting joints 2, the outer diameter of the connecting joint 2 is larger than that of the protective sleeve 3, the section of the end face of the connecting joint 2 far away from the wire body 1 is arc-shaped, and the arc-shaped end part is flush with one side of the protective sleeve 3 far away from the wire body 1.
Referring to fig. 1 and 2, three positioning grooves 31 are formed in the outer side wall of the protective sleeve 3, the three positioning grooves 31 are uniformly distributed around the axis of the protective sleeve 3, two ends of each positioning groove 31 are respectively communicated with two connecting joints 2, and a positioning support assembly 4 for connecting the two connecting joints 2 is arranged in each positioning groove 31.
The positioning support assembly 4 comprises a first connecting rod 41 and a second connecting rod 42 which are parallel and opposite, one end of the first connecting rod 41 is fixedly connected with a clamping rod 47, one side of the connecting joint 2 far away from the wire body 1 is provided with a clamping groove 21 corresponding to the positioning groove 31 in position, on the section perpendicular to the center line of the wire body 1, the clamping groove 21 is arranged into a T shape, one end of the clamping groove 21 is far away from the wire body 1 and is communicated with the outside, the clamping rod 47 is inserted into the clamping groove 21 from the outside and slides into one end of the clamping groove 21, and the second connecting rod 42 is connected onto the other connecting joint 2 in the same structure. The connecting joint 2 can be further provided with a limit bolt in a penetrating way through the clamping groove 21 to be communicated with one end of the outside, so that the clamping rod 47 is limited in the clamping groove 21, and the limit bolt is not shown in the figure.
Referring to fig. 1 and 3, a first connection slot 411 is formed at one end of the first connection rod 41, which is close to the second connection rod 42, a support block 43 is rotatably connected in the first connection slot 411, the support block 43 is arc-shaped, a limiting block 44 abutting against an extrados surface of the support block 43 is arranged in the first connection slot 411, and the limiting block 44 is located at one side, away from the second connection rod 42, of the support block 43. The two ends of the limiting block 44 are fixedly connected with supporting rods 45, the first connecting rod 41 is provided with waist-shaped holes opposite to the supporting rods 45, and the supporting rods 45 penetrate through the waist-shaped holes and slide along the length directions of the waist-shaped holes.
The second connecting groove 421 is formed in the end, close to the first connecting rod 41, of the second connecting rod 42, the end, close to the second connecting rod 42, of the first connecting rod 41 and the supporting block 43 are inserted into the second connecting groove 421, and the supporting rod 45 penetrates through one end in the waist-shaped hole to be fixed on the second connecting rod 42.
The first connecting slot 411 is internally provided with a spring 46, one end of the spring 46 is fixed on the inner wall of the first connecting slot 411 far away from the supporting block 43, the other end of the spring 46 passes through the limiting block 44 and is fixed at the end part of the supporting block 43, and the spring 46 pulls the supporting block 43 to rotate and is inserted into the positioning slot 31.
When the two ends of the wire body 1 are anchored and stretched, the wire body 1 is integrally stretched, the distance between two adjacent connecting joints 2 is increased, the first connecting rod 41 and the second connecting rod 42 are far away from each other, the second connecting rod 42 drives the limiting block 44 to move close to the supporting block 43 through the supporting rod 45 and squeeze the supporting block 43, the supporting block 43 rotates, one end, close to the second connecting rod 42, of the supporting block 43 rotates and tilts, the supporting block is separated from the positioning groove 31, and the end parts of the three supporting blocks 43 are simultaneously abutted to the inner side wall of the corrugated pipe, so that the wire body 1 is positioned on the central line of the corrugated pipe.
A plurality of fan blades 5 are rotatably connected to both sides of the first connecting rod 41, and the same fan blades 5 are rotatably connected to both sides of the second connecting rod 42.
When concrete is poured into the corrugated pipe, the concrete stirs the fan blade 5 to rotate in the moving process, so that the fan blade 5 stirs the concrete in the positioning groove 31, the generation of gaps is reduced, and the connection firmness is improved.
The implementation principle of the embodiment of the application is as follows: the distance between the first connecting rod 41 and the second connecting rod 42 is adjusted, so that the supporting block 43 is accommodated in the positioning groove 31, the wire body 1 is arranged in the corrugated pipe in a penetrating mode, after the wire body 1 is arranged in a penetrating mode, two ends of the wire body 1 are anchored and tensioned, the limiting block 44 extrudes the supporting block 43, one end, away from the limiting block 44, of the supporting block 43 rotates and is separated from the positioning groove 31, the wire body 1 is supported in the center of the corrugated pipe, and at the moment, poured concrete enters the corrugated pipe until filling is completed.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. The utility model provides a cavity prestressing force steel strand wires, includes line body (1), its characterized in that, line body (1) outside is equipped with a plurality of evenly distributed's connecting rod (2), is adjacent be equipped with the multiunit between connecting rod (2) line body (1) evenly distributed's location supporting component (4), connecting rod (2) inside be equipped with thread matched with on line body (1) screw thread, just be equipped with set screw (22) on connecting rod (2), set screw (22) one end penetrates connecting rod (2) and butt are in on line body (1), location supporting component (4) are including parallel and relative head rod (41) and second connecting rod (42), the one end of head rod (41) is installed on one connecting rod (2), the one end of second connecting rod (42) is installed on another connecting rod (2), the one end that head rod (41) kept away from second connecting rod (42) is equipped with perpendicular to connecting rod (21) the head rod (41) one end that is equipped with, the head rod (47) is kept away from connecting rod (21) the external side of connecting rod (47) is seted up to connect connecting rod (47), the clamping connection groove (21) is internally spliced with the clamping connection rod (47) at the other two ends, the connecting joint (2) is provided with a limit bolt, the limit bolt passes through the connecting joint (2) and simultaneously passes through one end of the clamping connection groove (21) communicated with the outside, the first connecting groove (411) is formed in one end of the first connecting rod (41) close to the second connecting rod (42), one end of the first connecting rod (41) is hinged with an arc-shaped supporting block (43) positioned in the first connecting groove (411), the supporting block (43) is far away from a limiting block (44) on the cambered surface on one side of the second connecting rod (42), the limiting block (44) is positioned on one side of the supporting block (43) far away from the second connecting rod (42), two ends of the limiting block (44) are fixedly connected with supporting rods (45), waist-shaped holes opposite to the supporting rods (45) are formed in the first connecting rod (41), the supporting rods (45) pass through the waist-shaped holes and slide along the length direction of the waist-shaped holes, the second connecting rod (42) close to the first connecting rod (41) is provided with a limiting block (421) on one side of the second connecting rod (41) close to the first connecting rod (41) and the second connecting rod (421) and the first connecting rod (41) and the second connecting rod (41) and the limiting block (41) are close to the first connecting rod (41), and one end of the supporting rod (45) penetrating through the waist-shaped hole is fixed on the second connecting rod (42).
2. A hollow prestressed steel strand according to claim 1, characterized in that a protective sleeve (3) covering the wire body (1) is arranged between adjacent connecting joints (2), a positioning groove (31) is formed in the side wall of the protective sleeve (3), and the positioning support assembly (4) is located in the positioning groove (31).
3. A hollow pre-stressed steel strand according to claim 2, characterized in that the outer diameter of the connection joint (2) is larger than the outer diameter of the protective sheath (3), and that the cross section of the annular side of the connection joint (2) is arranged in an arc.
4. A hollow pre-stressed steel strand according to claim 2, characterized in that a spring (46) connecting the support block (43) and the first connecting rod (41) is arranged between them, said spring (46) being used for driving the support block (43) to rotate towards the inside of the positioning groove (31).
5. A hollow prestressed steel strand according to claim 1, characterized in that the two sides of the first connecting rod (41) are provided with a plurality of fan blades (5), and the two sides of the second connecting rod (42) are also provided with a plurality of fan blades (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279656.0A CN115976989B (en) | 2023-03-22 | 2023-03-22 | Hollow prestress steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279656.0A CN115976989B (en) | 2023-03-22 | 2023-03-22 | Hollow prestress steel strand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115976989A CN115976989A (en) | 2023-04-18 |
| CN115976989B true CN115976989B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310279656.0A Active CN115976989B (en) | 2023-03-22 | 2023-03-22 | Hollow prestress steel strand |
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Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773325B (en) * | 2009-12-29 | 2014-04-23 | 张书闵 | Automatic umbrella unfolding/folding guy structure |
| CN105257071B (en) * | 2015-10-30 | 2017-06-23 | 国网山东省电力公司东营供电公司 | Telegraph pole guy tight twist device |
| CN207159823U (en) * | 2017-07-20 | 2018-03-30 | 中国水利水电第十四工程局有限公司 | A kind of steel strand wires material fixed support |
| CN207944901U (en) * | 2017-12-28 | 2018-10-09 | 中石化石油工程技术服务有限公司 | A kind of section milling tool of band self-regulation centralizer |
| CN109854835B (en) * | 2019-01-19 | 2020-09-25 | 埃飞灵卫浴科技集团有限公司 | Pipe fitting connecting structure |
| CN110359506B (en) * | 2019-07-29 | 2024-05-03 | 中国三峡建工(集团)有限公司 | Simple high-pressure grouting lifting deformation monitoring device and installation method thereof |
| CN212044386U (en) * | 2020-01-07 | 2020-12-01 | 江苏华腾工业设备安装集团有限公司 | Pipeline centering positioning device with wide application range |
| CN213837354U (en) * | 2020-09-16 | 2021-07-30 | 北京科鼎科技咨询股份有限公司 | Novel steel strand pulling guide pipe |
| CN214940104U (en) * | 2021-04-01 | 2021-11-30 | 中交第三公路工程局有限公司 | Prestressed anchorage cable device of deep foundation pit |
| CN215760014U (en) * | 2021-08-05 | 2022-02-08 | 河南恒丰钢缆有限公司 | Retarded adhesive prestressed steel strand |
| CN215887735U (en) * | 2021-09-18 | 2022-02-22 | 无锡科茂金属材料有限公司 | Hollow composite core wire steel strand |
| CN217153313U (en) * | 2022-03-08 | 2022-08-09 | 山东深博建筑工程有限公司 | Device for centering installation pipeline in sleeve |
| CN216765875U (en) * | 2022-03-08 | 2022-06-17 | 中冶建工集团有限公司 | Do benefit to anchor rope construction structures placed in middle |
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2023
- 2023-03-22 CN CN202310279656.0A patent/CN115976989B/en active Active
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