CN108856597B - PCCP steel wire joint and binding method thereof - Google Patents

PCCP steel wire joint and binding method thereof Download PDF

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Publication number
CN108856597B
CN108856597B CN201810551653.7A CN201810551653A CN108856597B CN 108856597 B CN108856597 B CN 108856597B CN 201810551653 A CN201810551653 A CN 201810551653A CN 108856597 B CN108856597 B CN 108856597B
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China
Prior art keywords
wire
binding
bound
steel wire
end point
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CN108856597A (en
Inventor
粟丽萍
侯方
王荣
马军民
陈丽
谭新民
宋小兵
张丽荣
李建生
李翠
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Xinjiang Guo Tong Pipeline Co ltd
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Xinjiang Guo Tong Pipeline Co ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/06—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Package Frames And Binding Bands (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The application relates to a PCCP prestress wire joint binding structure and a method, in particular to a PCCP wire joint and a binding method thereof; the left steel wire to be bound and the right steel wire to be bound are overlapped and lapped together; the binding wires comprise a left binding wire wound on the left steel wire to be bound, a common binding wire wound on the overlapped and overlapped section of the left steel wire to be bound and the right steel wire to be bound, and a right binding wire wound on the right steel wire to be bound. By implementing the technical scheme, the application has simple operation process, the borne tensile stress can reach the minimum ultimate strength of the steel wire, and the fracture after the test is outside the binding wire, so that the problems of unstable joint, loose and slipping of the binding wire, head warping, inconsistent fracture after the test and the like can be effectively solved, the joint pulling-out is avoided, the wire withdrawal rate is reduced, the cost is saved, and the working efficiency is improved.

Description

PCCP steel wire joint and binding method thereof
Technical Field
The application relates to a PCCP (prestressed concrete cylinder pipe) prestressed steel wire joint binding structure and a method, in particular to a PCCP steel wire joint and a binding method thereof.
Background
According to national standard GB/T19685, winding a prestressed steel cylinder concrete pipe, and binding a steel wire joint when changing a steel wire disc; the standard requires that the tensile force born by the steel wire joint should at least reach the standard value of the ultimate tensile strength of the steel wire when the joint is tested, and the fracture position does not appear in the binding range. At present, binding steel wires are adopted for binding the joints of the steel wires, wherein binding steel wires are wound from one end of each joint to the other end of each joint in a forward direction, and after winding is finished, the joints at the two ends are reversely folded and bound together; after binding by adopting the mode, the problems of loose joint, loose slip and warping of binding wires, inconsistent fracture after test and the like easily occur in the wire winding process
Disclosure of Invention
The application aims to provide a PCCP steel wire joint with firm joint and difficult release and slippage and a binding method thereof.
One of the technical schemes of the application is realized as follows: the PCCP steel wire joint comprises binding wires for binding, and a left steel wire to be bound and a right steel wire to be bound which are overlapped and lapped together; the binding wires comprise left binding wires wound on the left steel wires to be bound, common binding wires wound on overlapping and overlapping sections of the left steel wires to be bound and the right steel wires to be bound, and right binding wires wound on the right steel wires to be bound; the left end point of the left binding wire is connected with the left end point of the common binding wire, the right end point of the common binding wire is connected with the left end point of the right binding wire, and the right end point of the left binding wire extends to the right binding wire and is connected with the right end point of the right binding wire after being screwed.
Further, the left binding wire, the common binding wire and the right binding wire are closely arranged.
Further, the right end point of the right binding wire extends and is reversely wound on the right binding wire for at least two circles and then is tightly connected with the right end point of the left binding wire.
Further, the right end point of the left binding wire extends rightward to the right binding wire along the lap joint gap of the left steel wire to be bound and the right steel wire to be bound; the extension portion of the right end point of the left tying wire is wound together with the overlapping lap portion of the left steel wire to be tied and the right steel wire to be tied by the co-tying wire.
The second technical scheme of the application is realized as follows: the PCCP steel wire joint binding method comprises the following steps: step one, starting to wind a left binding wire on the left steel wire to be bound at a position 350mm to 550mm away from the right end point of the left steel wire to be bound; step two, the left end point of the right steel wire to be bound is sent to the winding left initial position of the left binding wire, and the left steel wire to be bound and the right steel wire to be bound are overlapped relatively; extending the right end point of the left binding wire rightward along the lap joint gap of the left steel wire to be bound and the right steel wire to be bound, wherein the reserved length is 380mm to 590mm; step four, extending the left end point of the left binding wire around the lap joint part of the left steel wire to be bound and the right steel wire to be bound until the tail end of the lap joint part is formed into a common binding wire, wherein the common binding wire is next to the left binding wire; fifthly, extending the right end point of the common binding wire around the right steel wire to be bound to form a right binding wire, wherein the length of the right binding wire is not less than 15mm, and the right binding wire is next to the common binding wire; and step six, extending the right end point of the right binding wire, reversely winding the right end point on the right binding wire for at least two circles, and then screwing and connecting the right end point of the right binding wire with the extending section of the right end point of the left binding wire.
Further, in the first step, the number of winding turns of the left tying wire is 3 to 6.
Further, in the second step, the length of the relative overlapping part of the left steel wire to be bound and the right steel wire to be bound is 350mm to 550mm.
Further, in the third step, the reserved length of the right end point of the left binding wire extending rightward is 30mm to 40mm longer than the length of the relative overlapping part of the left steel wire to be bound and the right steel wire to be bound.
Due to the implementation of the technical scheme, the common binding wire is wound on the overlapped lap joint section of the left steel wire to be bound and the right steel wire to be bound, the left binding wire is wound on the left steel wire to be bound independently, the right binding wire is wound on the right steel wire to be bound independently, the left end point of the left binding wire is connected with the left end point of the common binding wire, the right end point of the common binding wire is connected with the left end point of the left binding wire, and the right end point of the left binding wire extends to the right binding wire and is connected with the right end point of the right binding wire after being screwed; the application has simple operation process, the borne tensile stress can reach the minimum ultimate strength of the steel wire, and the fracture after the test is outside the binding wire, so that the problems of loose joint, loose slip, head warping, inconsistent fracture after the test and the like of the binding wire can be effectively solved, the joint is prevented from being pulled apart, the wire withdrawal rate is reduced, the cost is saved, and the working efficiency is improved.
Drawings
The specific structure of the present application is shown in the following drawings and examples:
fig. 1 is a schematic structural view of embodiment 1 to embodiment 3 of the present application;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;
fig. 3 is a partially enlarged structural schematic diagram at B in fig. 1.
Legend: 1. the left steel wire to be bound, the right steel wire to be bound, the left binding wire, the common binding wire and the right binding wire are respectively arranged in the left binding wire, the right binding wire and the right binding wire.
Description of the embodiments
The present application is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present application.
Example 1 as shown in fig. 1 to 3, the PCCP steel wire joint includes a tying wire for tying and left and right steel wires 1 and 2 to be tied overlapped together; the binding wires comprise a left binding wire 3 wound on the left steel wire 1 to be bound, a common binding wire 4 wound on the overlapped and overlapped section of the left steel wire 1 to be bound and the right steel wire 2 to be bound, and a right binding wire 5 wound on the right steel wire 2 to be bound; the left end point of the left binding wire 3 is connected with the left end point of the common binding wire 4, the right end point of the common binding wire 4 is connected with the left end point of the right binding wire 3, and the right end point of the left binding wire 3 extends to the right binding wire 5 and is connected with the right end point of the right binding wire 5 after being screwed.
The application abandons the technology of winding from one end of the joint to the other end in the prior art, and after winding is finished, the joints at the two ends are reversely folded and then bound, and adopts the overlapping lap joint section of the left steel wire 1 to be bound and the right steel wire 2 to be bound to wind the common binding wire 4, the left binding wire 3 is independently wound on the left steel wire 1 to be bound, and the right binding wire 5 is independently wound on the right steel wire 2 to be bound; the connection mode and the stress of the left binding wire 3 are reversed, and the left end point of the left binding wire 3 is connected with the left end point of the common binding wire 4; the right end point of the left binding wire 3 extends to the right binding wire 5, and the right end point of the right binding wire 5 extends and is connected with the right end point delay part of the left binding wire 3 in a screwing way after being reversely wound. The forces born by the binding steel wires are not in the same direction any more, and the binding steel wires can bear complex forces in different directions through the left binding wire 3 which is reversely designed and the right end point of the right binding wire 5 which is delayed and reversely wound. The application has convenient operation, reduces the phenomena of wire withdrawal and re-winding, can bear the tensile stress to reach the minimum ultimate strength of the steel wire, can effectively solve the problems of loose joint, loose binding wire, slipping, head warping, inconsistent fracture after test and the like, avoids the pulling-out of the joint, reduces the wire withdrawal rate, and improves the product quality and the working efficiency.
As shown in fig. 1 to 3, the left binding thread 3, the co-binding thread 4, and the right binding thread 5 are closely arranged. The left binding wire 3, the common binding wire 4 and the right binding wire 5 should be closely arranged and kept straight, and no twisting phenomenon can occur; thus, the stress intensity of the binding section can be enhanced.
As shown in fig. 1 to 3, the right end of the right binding wire 5 is extended and reversely wound around the right binding wire 5 at least two turns to be tightly coupled with the right end of the left binding wire 3.
As shown in fig. 1 to 3, the right end point of the left binding wire 3 extends rightward to the right binding wire 5 along the lap joint gap of the left steel wire 1 to be bound and the right steel wire 2 to be bound; the extension portion of the right end point of the left tying wire 3 is wound together with the overlapping lap portion of the left steel wire 1 to be tied and the right steel wire 2 to be tied by the co-tying wire 4.
Example 2 as shown in fig. 1 to 3, the PCCP wire joint binding method includes the steps of: step one, starting to wind a left binding wire 3 on the left steel wire 1 to be bound at a position 350mm to 550mm away from the right end point of the left steel wire 1 to be bound; step two, the left end point of the right steel wire 2 to be bound is sent to the winding left initial position of the left binding wire 3, and the left steel wire to be bound and the right steel wire 2 to be bound are overlapped relatively; extending the right end point of the left binding wire 3 rightward along the lap joint gap of the left steel wire 1 to be bound and the right steel wire 2 to be bound, wherein the reserved length is 380mm to 590mm; step four, extending the left end point of the left binding wire 3 around the lap joint of the left steel wire 1 to be bound and the right steel wire 2 to be bound until the tail end of the lap joint is formed to form a common binding wire 4, wherein the common binding wire 4 is next to the left binding wire 3; fifthly, extending the right end point of the common binding wire 4 around the right steel wire 2 to be bound to form a right binding wire 5, wherein the length of the right binding wire 5 is not less than 15mm, and the right binding wire 5 is next to the common binding wire 4; and step six, extending the right end point of the right binding wire 5, reversely winding the right end point on the right binding wire 5 for at least two circles, and then screwing and connecting the right end point of the right binding wire 3 with the extending section of the right end point of the left binding wire.
Example 3 as shown in fig. 1 to 3, the PCCP wire joint binding method includes the steps of: step one, starting to wind a left binding wire 3 on the left steel wire 1 to be bound at a position, which is away from the right end point 450 of the left steel wire 1 to be bound, and winding the left binding wire for 4 circles; step two, the left end point of the right steel wire 2 to be bound is sent to the winding left initial position of the left binding wire 3, the left steel wire to be bound and the right steel wire 2 to be bound are overlapped relatively, and the length of the overlapped position is 450mm; extending the right end point of the left binding wire 3 rightward along the lap joint gap of the left steel wire 1 to be bound and the right steel wire 2 to be bound, wherein the reserved length is 480mm; step four, extending the left end point of the left binding wire 3 around the lap joint of the left steel wire 1 to be bound and the right steel wire 2 to be bound until the tail end of the lap joint is formed to form a common binding wire 4, wherein the common binding wire 4 is next to the left binding wire 3; step five, the right end point of the common binding wire 4 is extended and wound around the right steel wire 2 to be bound to form a right binding wire 5, the length of the right binding wire 5 is 20mm, and the right binding wire 5 is next to the common binding wire 4; and step six, extending the right end point of the right binding wire 5, reversely winding the right end point on the right binding wire 5 for three circles, and then screwing and fixedly connecting the right end point of the right binding wire 3 with the extending section of the right end point of the left binding wire.
As shown in table 1, the joint slip length in the prior art binding mode was much longer than that in the binding mode of example 3, and no joint loosening phenomenon occurred in the binding mode of example 3.
As shown in table 2, the ratio of joint slip in the prior art lashing mode was about 20%, while the ratio of joint slip in the example 3 lashing mode was close to 0%.
As shown in table 3, the maximum load-bearing tension of the joint in the lashing mode of example 3 is generally higher than that in the lashing mode of the prior art, by about 0.5 to 13KN.
Through the data comparison of tables 1, 2 and 3, the steel wire joint disclosed by the application has obviously better performance than the joint performance in the prior art, is more reasonable in structure, is small in slippage, is not loosened, is firmer and is strong in tensile stress bearing capacity.
The technical characteristics form the embodiment of the application, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the needs of different situations.
Table 1, comparative Table of slip lengths of joints under prior art and method employing example 3
。
Table 2, comparative Table of fracture sites in the prior art and in the method of example 3
。
Table 3, comparative Table of prior art and maximum load carrying force by the method of example 3
。

Claims (9)

1. A PCCP steel wire joint, characterized by comprising: the left steel wire to be bound and the right steel wire to be bound are overlapped and lapped together; the binding wires comprise left binding wires wound on the left steel wires to be bound, common binding wires wound on overlapping and overlapping sections of the left steel wires to be bound and the right steel wires to be bound, and right binding wires wound on the right steel wires to be bound; the left end point of the left binding wire is connected with the left end point of the common binding wire, the right end point of the common binding wire is connected with the left end point of the right binding wire, and the right end point of the left binding wire extends to the right binding wire and is connected with the right end point of the right binding wire after being screwed.
2. The PCCP steel wire joint as recited in claim 1, wherein: the left binding wire, the common binding wire and the right binding wire are closely arranged.
3. The PCCP steel wire joint as set forth in claim 1 or 2, characterized in that: the right end point of the right binding wire extends and is reversely wound on the right binding wire for at least two circles and then is tightly connected with the right end point of the left binding wire.
4. The PCCP steel wire joint as set forth in claim 1 or 2, characterized in that: the right end point of the left binding wire extends rightward to the right binding wire along the lap joint gap of the left steel wire to be bound and the right steel wire to be bound; the extension portion of the right end point of the left tying wire is wound together with the overlapping lap portion of the left steel wire to be tied and the right steel wire to be tied by the co-tying wire.
5. The PCCP steel wire joint binding method is characterized by comprising the following steps of:
step one, starting to wind a left binding wire on the left steel wire to be bound at a position 350mm to 550mm away from the right end point of the left steel wire to be bound;
step two, the left end point of the right steel wire to be bound is sent to the winding left initial position of the left binding wire, and the left steel wire to be bound and the right steel wire to be bound are overlapped relatively;
extending the right end point of the left binding wire rightward along the lap joint gap of the left steel wire to be bound and the right steel wire to be bound, wherein the reserved length is 380mm to 590mm;
step four, extending the left end point of the left binding wire around the lap joint part of the left steel wire to be bound and the right steel wire to be bound until the tail end of the lap joint part is formed into a common binding wire, wherein the common binding wire is next to the left binding wire;
fifthly, extending the right end point of the common binding wire around the right steel wire to be bound to form a right binding wire, wherein the length of the right binding wire is not less than 15mm, and the right binding wire is next to the common binding wire;
and step six, extending the right end point of the right binding wire, reversely winding the right end point on the right binding wire for at least two circles, and then screwing and connecting the right end point of the right binding wire with the extending section of the right end point of the left binding wire.
6. The PCCP steel wire joint binding method according to claim 5, characterized in that: in the first step, the winding number of the left tying wire is 3 to 6 turns.
7. The PCCP steel wire joint tying method according to claim 5 or 6, characterized in that: in the second step, the length of the relative overlapped part of the left steel wire to be bound and the right steel wire to be bound is 350mm to 550mm.
8. The PCCP steel wire joint tying method according to claim 5 or 6, characterized in that: in the third step, the reserved length of the right end point of the left binding wire extending rightwards is 30mm to 40mm longer than the length of the relative overlapped part of the left steel wire to be bound and the right steel wire to be bound.
9. The PCCP steel wire joint binding method as recited in claim 7, wherein: in the third step, the reserved length of the right end point of the left binding wire extending rightwards is 30mm to 40mm longer than the length of the relative overlapped part of the left steel wire to be bound and the right steel wire to be bound.
CN201810551653.7A 2018-05-31 2018-05-31 PCCP steel wire joint and binding method thereof Active CN108856597B (en)

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CN108856597B true CN108856597B (en) 2023-11-03

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125224U (en) * 1974-03-29 1975-10-14
JPH05287851A (en) * 1992-04-13 1993-11-02 Hitachi Kizai Kk Reinforcement joint
JPH08103965A (en) * 1994-10-04 1996-04-23 Toray Ind Inc Frp cylinder and manufacture thereof
CN101506446A (en) * 2006-08-24 2009-08-12 冈部株式会社 Tool for joining reinforcing bars
CN201416594Y (en) * 2009-04-03 2010-03-03 山东省泰安泰龙软轴软管厂 Novel control cable
KR20100043989A (en) * 2008-10-21 2010-04-29 (주)대우건설 Binding wire for fixing position of steel rod
CN101943195A (en) * 2010-09-13 2011-01-12 中国核电工程有限公司 Pull rod end part fastening joint and manufacturing method thereof
CN202992436U (en) * 2012-12-09 2013-06-12 浙江盾安热工科技有限公司 Copper and aluminum joint structure of heat exchanger
CN204849756U (en) * 2015-04-17 2015-12-09 霍炳旭 No bonding steel strand wires
CN106151186A (en) * 2016-06-24 2016-11-23 刘祥锦 A kind of rebar connector, method of attachment, jointing and dedicated extruded mould
CN107839920A (en) * 2017-12-06 2018-03-27 浙江万纳核电检修有限公司 A kind of application method of fire hose colligation combination tool and the combination tool
CN208408396U (en) * 2018-05-31 2019-01-22 新疆国统管道股份有限公司 PCCP wire joint

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125224U (en) * 1974-03-29 1975-10-14
JPH05287851A (en) * 1992-04-13 1993-11-02 Hitachi Kizai Kk Reinforcement joint
JPH08103965A (en) * 1994-10-04 1996-04-23 Toray Ind Inc Frp cylinder and manufacture thereof
CN101506446A (en) * 2006-08-24 2009-08-12 冈部株式会社 Tool for joining reinforcing bars
KR20100043989A (en) * 2008-10-21 2010-04-29 (주)대우건설 Binding wire for fixing position of steel rod
CN201416594Y (en) * 2009-04-03 2010-03-03 山东省泰安泰龙软轴软管厂 Novel control cable
CN101943195A (en) * 2010-09-13 2011-01-12 中国核电工程有限公司 Pull rod end part fastening joint and manufacturing method thereof
CN202992436U (en) * 2012-12-09 2013-06-12 浙江盾安热工科技有限公司 Copper and aluminum joint structure of heat exchanger
CN204849756U (en) * 2015-04-17 2015-12-09 霍炳旭 No bonding steel strand wires
CN106151186A (en) * 2016-06-24 2016-11-23 刘祥锦 A kind of rebar connector, method of attachment, jointing and dedicated extruded mould
CN107839920A (en) * 2017-12-06 2018-03-27 浙江万纳核电检修有限公司 A kind of application method of fire hose colligation combination tool and the combination tool
CN208408396U (en) * 2018-05-31 2019-01-22 新疆国统管道股份有限公司 PCCP wire joint

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