KR20090131476A - Coupler for connecting strain members and method of connecting same - Google Patents

Abstract

PURPOSE: A coupler for tensile members and a tensile member connection method using the same are provided to ensure stability of a structure and reduce the maintenance cost. CONSTITUTION: A coupler for tensile members comprises a female coupler(300), a male coupler(400), and an adjusting coupler(500). The female coupler with female threads(301,302) is connected to a male thread(101) of a tensile member(100) and the male coupler on both sides. The male coupler with male threads is connected to the female coupler and the adjusting coupler on both sides. The adjusting coupler with female threads is connected to the male coupler and the male thread of the tensile member on both sides.

Description

Coupler for connecting tension member and connecting tension member using same {Coupler for Connecting Strain Members and Method of Connecting Same}

1 is a schematic cross-sectional view of a coupler for connecting a conventional tension member.

2 is a view showing a coupler for connecting a tension member according to an embodiment of the present invention, (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

3 is a view showing a coupler for connecting a tension member according to another embodiment of the present invention, (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

Figure 4 is a view showing a coupler for connecting a tension member according to another embodiment of the present invention, (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

5 is a view showing a coupler for connecting a tension member according to another embodiment of the present invention, (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

FIG. 6 is a schematic perspective view for explaining the method for connecting the coupler of FIG.

7 is a schematic perspective view for explaining the method for connecting the coupler of FIG.

FIG. 8 is a schematic attempt to explain the method for connecting the coupler of FIG.

FIG. 9 is a schematic perspective view for explaining a method for connecting the coupler of FIG.

Brief description of the main symbols in the drawing

  10, 100: first tension member 20, 200: second tension member

  30: coupler

  40, 50, 150, 250, 600: lock nut

  11, 21: male thread 31, 32: female thread

  300: female coupler 400: male coupler

  500: Adjustment coupler 101, 201: Male thread

  301, 302, 501, 502: female threaded portions 303, 401, 503, 701: hole

  202: tension jaw

Field of invention

The present invention relates to a coupler for connecting a tension member. More specifically, the present invention is easy to connect the tension member, the tension member is released is not released because it does not need to ensure the safety and maintenance of the structure or maintenance period is relatively long to reduce the maintenance cost A coupler for tension member connection. The present invention also includes a method of connecting a tension member using the coupler of the present invention.

Background of the Invention

The coupler for connecting the tension member is a means for connecting the tension members supporting the indoor and outdoor structures, such as suspending, cantilever, long span truss, etc., which are made of steel structures. That is, this coupler is used when connecting a cable for supporting a sidewalk bridge structure or a tension member for supporting a bridge structure such as a suspension bridge. This coupler is also known as a turn buckle.

The typical structure of this coupler forms the structure shown in FIG. 1 is a schematic cross-sectional view of a conventional coupler for tension member connection, connecting two tension members 10 and 20 with a coupler 30. Male threads 11 and 21 are formed at the ends of the tension members 10 and 20, respectively, and female threads 31 are formed inside the coupler 30 so that they are coupled to each other.

As shown in FIG. 1, the male thread portions 11 and 21 form threads in opposite directions to each other. For example, if the male thread portion 11 is a right screw, the male thread portion 21 is formed as a left screw. The female thread portion 31 of the coupler 30 is formed such that the coupler can be coupled to the male thread portions 11 and 21, respectively. Because of this structure, when the coupler 30 is turned in the direction of the arrow in FIG. 1, the tension members 10 and 20 engage with the coupler, and when the coupler is turned in the opposite direction, the tension members 10 and 20 simultaneously It is released from the coupler. Tensile members are usually in the form of cables, rods, ropes and may have a diameter of several tens of millimeters to several hundreds of mm, depending on the structure.

Each other of the tension members 10, 20 is fixed to a socket (not shown) or a structure (not shown). The lock nuts 40 and 50 are assembled to the male threads 11 and 21 of the tension member, respectively, which are means for use in assembling the tension members 10 and 20 to the coupler 30. That is, when the two tension members 10 and 20 are connected to each other by introducing a large tension or are connected to each other by introducing an accurate tension, a jig (not shown) of a hydraulic device is attached to each lock nut 40 and 50. The coupler 30 is rotated while bite introduces a fine tension in the coupled state between the coupler 30 and the tension members 10 and 20 by hydraulic pressure, and the tension member and the coupler are completely coupled while repeating this process. Once the tensioning member is fully engaged, the jig is removed and tightened.

However, the conventional coupler having such a structure is not easy to assemble because it must maintain a constant tension as a hydraulic device while turning the coupler 30 little by little during assembly. Therefore, it takes a lot of time and money to join the tension member.

In addition, a serious problem of the conventional coupler is that the screws of the tension members 10 and 20 coupled to the coupler are formed in opposite directions, so that they are easily loosened by external shock such as vibration. If the tension member is released from the coupler, it may not be able to maintain a proper tension on the tension member and may even lead to serious situations such as structural collapse. Therefore, the conventional coupler has to check the situation from time to time is a lot of maintenance costs.

The present inventors are easy to install and to solve the shortcomings of the conventional coupler as described above, and the screw portion is not loosened by external shock such as vibration to ensure the safety of the structure and reduce the maintenance cost of the new structure It is early to develop.

An object of the present invention is to provide a coupler for connecting a tension member that can be easily installed and save time and cost.

Another object of the present invention is to provide a coupler for connecting a tension member of a new structure in which the thread portion is not loosened by external shock such as vibration.

Still another object of the present invention is to provide a coupler for connecting a tension member capable of maintaining a constant tension at all times.

Another object of the present invention is to provide a coupler for connecting the tension member that can ensure the safety of the structure and reduce the maintenance cost.

Another object of the present invention is to provide a construction method for fastening the coupler of the present invention.

The above and other objects of the present invention can be achieved by the present invention described below.

Summary of the Invention

Coupler for tension member connection according to an embodiment of the present invention in connecting two first and second tension members (100, 200) formed with male threads (101, 201) at each end, one side of the male screw A female coupler 300 having a female threaded portion 301, 302 therein coupled to the portion 101 and the other to a male coupler, one coupled to the female coupler and the other adjusted A male coupler 400 having a male thread portion 401 formed therein so as to be coupled to a coupler, and a female thread portion 501 therein coupled to one side with the male coupler and the other side with the male thread portion 201. 502 is formed, the pitch of the female threaded portion 501 is characterized in that it consists of an adjustment coupler 500, which is not equal to, or larger than, the pitch of the female threaded portion 502.

The lock nut 600 is fastened to the male screw portion 201 of the tension member 200, so that the jig of the hydraulic device is coupled to the female coupler 300 and the lock nut 600 when assembling the tension members 100 and 200. Let it bite

Since the pitch of the female threaded portion 501 of the adjusting coupler 500 is not the same as the pitch of the female threaded portion 502, the pitch of the male coupler 400 is also not equal to the pitch of the male threaded portion 201 of the tension member 200. On the other hand, the pitch of the male coupler 400 and the pitch of the male thread portion 101 of the tension member 100 are the same.

Coupler for connecting the tension member according to another embodiment of the present invention in connecting two first and second tension members (100, 200A) formed with a male thread portion 101 and a female thread portion 201A at each end, One side is coupled to the male thread portion 101 and the other side is a female coupler 300 formed with female thread portions 301 and 302 therein to be coupled to the male coupler, and one side is coupled to the female coupler. The other side is a male coupler 400 having a male thread formed therein to be coupled to the adjusting coupler, and the other side is formed with a female thread portion 505 therein to be coupled to the male coupler, and the other is the female threaded portion 201A. A male thread portion 506 is formed on the outside so as to be coupled to the pitch, and the pitch of the female thread portion 505 is characterized by consisting of an adjustment coupler 500A larger or smaller than the pitch of the male thread portion 506.

In the tension member 200A, a tension jaw 202 may be formed in place of the lock nut so that the jig of the hydraulic device is caught when the tension members 100 and 200A are assembled.

The pitch of the female thread portion 505 of the adjusting coupler 500A is the same as the pitch of the male coupler 400. The pitch of the female screw portion 201A of the tension member 200A is the same as the pitch of the male screw portion 506 of the adjusting coupler 500A.

Coupler for connecting the tension member according to another embodiment of the present invention in connecting two first and second tension members (100, 200B), one side of the male thread portion 101 of the first tension member (100) A female coupler 300 having a female thread portion 301 and 302 having the same pitch therein so as to be coupled to the male thread portion 510 of the adjustment coupler 500B, and one side coupled to the female coupler. A male thread portion 510 is formed to be formed, and the other side of the male thread portion 520 is formed to be coupled to the female thread portion 202 of the second tension member 200B, and the pitch of the male thread portion 510 is Assembled coupler 500B, which is not equal to or larger than the pitch of male thread 520, and the male threaded portions 101, 201 of the first and second tension members 100, 200B, respectively. It is characterized by consisting of a pair of lock nuts (150, 250).

Tensile jaws may be formed in the tension members 100 and 200B instead of the lock nuts 150 and 250 so that the jig of the hydraulic device is caught when the tension members are assembled.

Hereinafter, with reference to the accompanying drawings will be described in detail the contents of the present invention.

Detailed Description of the Invention

The present invention relates to a coupler (coupler) for connecting the tension member, and relates to a coupler that is easy to connect, the tension member is not loosened. The present invention also includes a method of connecting a tension member using the coupler of the present invention.

The present invention can be broadly classified into four specific examples. A first embodiment is shown in FIGS. 2 and 6, a second embodiment is shown in FIGS. 3 and 7, a third embodiment is shown in FIGS. 4 and 8, and a fourth embodiment is shown in FIG. 5 and 9, respectively. Among them, the first and second embodiments are almost similar variations, and the third and fourth embodiments are almost similar variations, and the third and fourth embodiments have different structures from the first and second embodiments, but the principle is The same can be said.

Referring first to the first embodiment, as shown in FIG. 2, (A) is a schematic attempt and (B) is a schematic longitudinal cross-sectional view.

As shown in FIG. 2, the coupler for connecting a tension member according to the first embodiment of the present invention includes two first and second tension members 100 and 200 having male threads 101 and 201 formed at ends thereof, respectively. It is to connect. Male threads 101 and 201 are formed on the first and second tension members, respectively. This coupler consists of a female coupler 300, a male coupler 400, and an adjustment coupler 500. The lock nut 600 is fastened to the male screw portion 201 of the tension member 200.

The female coupler 300 has female threads 301 and 302 formed therein so that one side thereof is coupled to the male screw portion 101 and the other side is coupled to the male coupler 400.

The male coupler 400 has a male thread formed on the outside thereof so that one side thereof is coupled to the female coupler and the other side is coupled to the adjustment coupler 500.

The adjusting coupler 500 has female threads 501 and 502 formed therein so that one side thereof couples to the male coupler 400 and the other side couples to the male screw portion 201. However, the pitch of the female screw portion 501 should not be the same as the pitch of the female screw portion 502. As such, the pitch of the female screw portion 502 may be different from the pitch of the female screw portion 501 so that it can be easily assembled when assembled using a hydraulic device jig (not shown). That is, when the tension of the female thread portion 502 is different from the pitch of the female thread portion 501, when the tension member is connected, the tension member is easily adjusted by first adjusting the female thread portion 502 and then adjusting the female thread portion 501 again. It can be connected.

Since the pitch of the female threaded portion 501 of the adjusting coupler 500 is not the same as the pitch of the female threaded portion 502, the pitch of the male coupler 400 is also not equal to the pitch of the male threaded portion 201 of the tension member 200. . On the other hand, the pitch of the male coupler 400 and the pitch of the male thread portion 101 of the tension member 100 may be the same.

In the present invention, the female coupler 300, the male coupler 400, and the adjusting coupler 500 are all screwed in one direction, that is, the right screw or the left screw. This can prevent the coupler from loosening.

The method of connecting the coupler for connecting the tension member according to the first embodiment is described as follows with reference to FIGS. 2 and 6.

As shown in FIG. 6, the female coupler 300 is assembled to the first tension member 100. At this time, it can be assembled by inserting a bar (not shown) into the hole 303 formed in the female coupler. The lock nut 600, the adjustment coupler 500, and the male coupler 400 are sequentially assembled to the second tension member 200.

One side of the jig (not shown) is clamped by the female coupler 300 and the other side is locked by the lock nut 600, and the male coupler 400 is pulled by a predetermined tension force using a hydraulic device (not shown). Make contact with the coupler 300.

At this time, adjust the coupler 500 finely to match the starting point of the screw of the male coupler 400 and the female coupler 300. When the starting point is matched, the male coupler 400 is rotated and assembled to the female coupler 300. A hole 401 is formed to easily turn the male coupler.

In this way, by varying the pitch of the female screw portion 502 from the pitch of the female screw portion 501, the tension member can be easily connected by first adjusting the female screw portion 502 and then adjusting the female screw portion 501 having a different pitch. . And even after assembling, the female coupler 300, the male coupler 400, and the adjusting coupler 500 are all screwed in one direction, that is, the right screw, thereby preventing any coupler from loosening due to external shock such as vibration. . A hole 503 is formed to easily turn the adjusting coupler.

A second embodiment of the invention is shown in FIG. (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

As shown in FIG. 3, the coupler for connecting a tension member according to the second embodiment of the present invention includes two first and second tension members 100 having male threads 101 and female threads 201A formed at ends thereof, respectively. , 200A). The second embodiment consists of the female coupler 300, the male coupler 400, and the adjustment coupler 500A.

The female coupler 300 has female threads 301 and 302 formed therein so that one side thereof is coupled to the male screw portion 101 and the other side is coupled to the male coupler 400.

The male coupler 400 is provided with a male thread on the outside thereof so that one side thereof is coupled to the female coupler and the other side is coupled to the adjustment coupler 500A.

The adjusting coupler 500A has a female screw portion 505 formed therein so that one side thereof couples with the male coupler, and the other side of the adjusting coupler 500A has a male screw portion (201) coupled to the female screw portion 201A of the second tension member 200A. 506 is formed and the pitch of the female threaded portion 505 is not equal to the pitch of the male threaded portion 506, i.e., larger or smaller. As such, the pitch of the male thread portion 506 is different from the pitch of the female thread portion 505 so that it can be easily assembled when assembling using a hydraulic device jig (not shown).

In the tension member 200A, a tension jaw 202 may be formed in place of the lock nut so that the jig of the hydraulic device is caught when the tension members 100 and 200A are assembled. Of course, it is also possible to assemble the lock nut in place of the tension jaw, which can be easily carried out as in the first embodiment by those skilled in the art.

The pitch of the female thread portion 505 of the adjusting coupler 500A is the same as the pitch of the male coupler 400 and the pitch of the male thread portion 101 of the tension member 100. And the pitch of the male thread portion 101 of the tension member 100 may be formed in the same manner. However, the pitch of the female screw portion 201A of the tension member 200A is not equal to the pitch of the male screw portion 506 of the adjusting coupler 500A.

Also in the second embodiment of the present invention, any coupler is caused by an external shock such as vibration by making the female coupler 300, the male coupler 400, and the adjusting coupler 500A all the screws in one direction, that is, the right screw or the left screw. Can be prevented from loosening.

A method of connecting a coupler for connecting a tension member according to a second embodiment is described as follows with reference to FIGS. 3 and 7.

As shown in FIG. 7, the female coupler 300 is assembled to the first tension member 100. At this time, it can be assembled by inserting a bar (not shown) into the hole 303 formed in the female coupler. The adjusting coupler 500A and the male coupler 400 are sequentially assembled to the second tension member 200A.

One side of the jig (not shown) is clamped by the female coupler 300 and the other side is clamped by the tension jaw 202, and the male coupler 400 is pulled by a predetermined tension force using a hydraulic device (not shown). Make contact with the coupler 300.

At this time, adjust the coupler 500A finely to match the starting point of the screw of the male coupler 400 and the female coupler 300. When the starting point is matched, the male coupler 400 is rotated and assembled to the female coupler 300.

By varying the pitch of the male thread portion 506 of the adjustment coupler 500A from the pitch of the female thread portion 505, the male thread portion 506 is first adjusted, and the female thread portion 505 is further adjusted to easily connect the tension member. Can be. And even after assembling, the female coupler 300, the male coupler 400, and the adjusting coupler 500A all use screws in one direction, that is, a right screw or a left screw, thereby preventing any coupler from being loosened by external shock such as vibration. can do.

A third embodiment of the invention is shown in FIG. (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

As shown in FIG. 4, the coupler for connecting a tension member according to the third embodiment of the present invention connects two first and second tension members 100 and 200B. The coupler of this third embodiment is a pair of locks assembled to the female coupler 300, the regulating coupler 500B, and the male threads 101 and 201 of the first and second tension members 100 and 200B, respectively. It is characterized by consisting of nuts (150, 250).

The female coupler 300 has a female thread portion having the same pitch therein so that one side thereof is coupled to the male thread portion 101 of the first tension member 100 and the other side is coupled to the male thread portion 510 of the adjustment coupler 500B. 301 and 302 are formed.

The adjustment coupler 500B has a male thread portion 510 formed so that one side thereof is coupled to the female coupler, and the other side has a male thread portion 520 externally coupled to the female thread portion 202 of the second tension member 200B. Is formed, the pitch of the male screw portion 510 should not be the same as the pitch of the male screw portion 520. As such, the pitch of the male screw portion 520 may be different from the pitch of the male screw portion 510 so that it can be easily assembled when assembling using a hydraulic device jig (not shown).

In addition, according to the third embodiment of the present invention, a pair of lock nuts 150 and 250 are assembled to the male threads 101 and 201 of the first and second tension members 100 and 200B, respectively. You have to take it. Tensile jaws may be formed in the tension members 100 and 200B instead of the lock nuts 150 and 250 so that the jig of the hydraulic device is caught when the tension members are assembled.

Also in the third embodiment of the present invention, the female coupler 300, the adjusting coupler 500B and the second tension member 200B are all screwed in one direction, that is, the right screw or the left screw. This can prevent the coupler from loosening.

A method of connecting the coupler for connecting the tension member according to the third embodiment is described as follows with reference to FIGS. 4 and 8.

As shown in FIG. 8, the lock nut 150 and the female coupler 300 are sequentially assembled to the first tension member 100. At this time, it can be assembled by inserting a bar (not shown) into the hole 303 formed in the female coupler. The lock nut 250 and the adjustment coupler 500B are sequentially assembled to the second tension member 200B.

A jig (not shown) is bitten by the log nuts 150 and 250, respectively, and pulled by a hydraulic device (not shown) to bring the adjustment coupler 500B into contact with the female coupler 300.

At this time, adjust the coupler 500B finely to match the starting point of the screw of the female coupler (300). When the starting point is aligned, the arm coupler 300 is assembled to assemble the arm coupler 300 to the adjusting coupler 500B.

By varying the pitch of the male thread portion 520 of the adjustment coupler 500B from the pitch of the male thread portion 510, first, the male thread portion 520 is adjusted, and then the female coupler 300 is adjusted to easily connect the tension member. Can be. After the assembly, the female coupler 300, the adjusting coupler 500B, and the second tension member 200B all have a screw in one direction, that is, a right screw or a left screw, thereby releasing any coupler by external shock such as vibration. It can prevent.

A fourth embodiment of the invention is shown in FIG. (A) is a schematic perspective view, (B) is a schematic longitudinal cross-sectional view.

As shown in FIG. 5, a coupler for connecting a tension member according to a fourth embodiment of the present invention connects two first and second tension members 100 and 200. The coupler of this fourth embodiment is a pair of locks assembled to the female coupler 300, the adjusting coupler 500C, and the male thread portions 101 and 201 of the first and second tension members 100 and 200, respectively. Characterized by consisting of nuts (150, 250).

The female coupler 300 has a female thread portion having the same pitch therein so that one side thereof is coupled to the male thread portion 101 of the first tension member 100 and the other side is coupled to the male thread portion 501 of the adjustment coupler 500C. do.

The adjustment coupler 500C has a male screw portion 501 formed so that one side thereof is coupled to the female coupler, and the other side has a female screw portion formed therein so that the male screw portion 201 of the second tension member 200 is coupled thereto. The pitch of the male thread portion 501 of the adjustment coupler should not be the same as the pitch of the male thread portion 201 of the second tension member. As such, the pitch of the male screw portion 501 is different from the pitch of the male screw portion 201, so that it can be easily assembled when assembling using a hydraulic device jig (not shown).

In addition, according to the fourth embodiment of the present invention, a pair of lock nuts 150 and 250 are assembled to the male thread portions 101 and 201 of the first and second tension members 100 and 200, respectively, so that the jig of the hydraulic device is assembled. You have to take it. Tensile jaws may be formed in the tension members 100 and 200B instead of the lock nuts 150 and 250 so that the jig of the hydraulic device is caught when the tension members are assembled.

Also in the fourth embodiment of the present invention, the female coupler 300, the adjusting coupler 500C and the second tension member 200C are all screwed in one direction, that is, the right screw or the left screw. This can prevent the coupler from loosening.

A method of connecting a coupler for connecting a tension member according to a fourth embodiment is described as follows with reference to FIGS. 5 and 9.

As shown in FIG. 9, the lock nut 150 and the female coupler 300 are sequentially assembled to the first tension member 100. At this time, it can be assembled by inserting a bar (not shown) into the hole 303 formed in the female coupler. The lock nut 250 and the adjusting coupler 500C are sequentially assembled to the second tension member 200.

A jig (not shown) is bitten by the log nuts 150 and 250, respectively, and pulled by a hydraulic device (not shown) to bring the adjustment coupler 500C into contact with the female coupler 300.

At this time, adjust the coupler (500C) finely to match the starting point of the screw of the female coupler (300). When the starting point is adjusted, the female coupler 300 is turned to assemble the female coupler to the adjusting coupler 500C.

By varying the pitch of the male thread portion 501 of the adjustment coupler 500C from the pitch of the male thread portion 201, the tension coupler 500C is first adjusted, and the female coupler 300 is then adjusted to easily connect the tension member. Can be. After the assembly, the female coupler 300, the adjusting coupler 500C, and the second tension member 200 are all screwed in one direction, that is, a right screw or a left screw, thereby releasing any coupler by external shock such as vibration. It can prevent.

The present invention provides a coupler of a new structure that is easy to install and secure the safety of the structure by reducing the screw portion is not loosened by an external impact such as vibration.

The present invention is easy to install and save time and cost, the thread is not loosened by external shocks such as vibration, thereby maintaining a constant tension in the tension member at all times, ensuring the safety of the structure and maintenance It provides the effect of the invention to provide a coupler for connecting the tension member that can reduce the cost.

Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

Claims (15)

In connecting two first and second tension members 100 and 200 having male threads 101 and 201 respectively formed at their ends, A female coupler 300 having female threads 301 and 302 formed therein so that one side is coupled to the male thread portion 101 and the other side is coupled to a male coupler; A male coupler 400 having a male thread formed at an outside thereof so that one side is coupled to the female coupler and the other side is coupled to the adjustment coupler; And One side is coupled to the male coupler and the other side is formed with female threads 501 and 502 therein to couple to the male screw portion 201, and the pitch of the female screw portion 501 is the pitch of the female screw portion 502. Adjusting coupler 500, which is not equal to; Coupler for tension member connection, characterized in that consisting of. The lock nut 600 is fastened to the male screw portion 201 of the tension member 200, so that when the tension members 100 and 200 are assembled, the jig of the hydraulic device is respectively coupled to the female coupler 300. Coupler for connecting the tension member, characterized in that the lock nut (600). The pitch of the female thread portion 501 of the adjusting coupler 500 is not equal to the pitch of the female thread portion 502, and the pitch of the male coupler 400 is also the male thread portion 201 of the tension member 200. Coupler for connecting the tension member, characterized in that the pitch is not the same, while the pitch of the male coupler 400 and the male thread portion 101 of the tension member 100 is the same. Assembling the female coupler 300 to the first tension member 100; Assembling the lock nut 600, the adjusting coupler 500, and the male coupler 400 in order to the second tension member 200; One side of the jig is bitten by the female coupler 300 and the other side is bitten by the lock nut 600, and pulled by a hydraulic device (not shown) to bring the male coupler 400 into contact with the female coupler 300; The pitch of the female threaded portion 501 finely turns the adjusting coupler 500 which is not equal to the pitch of the female threaded portion 502 to match the starting point of the screw of the male coupler 400 and the female coupler 300; And When the starting point is adjusted, turning the male coupler 400 to assemble the female coupler 300; Fastening method of the coupler for connecting the tension member, characterized in that consisting of a step. In connecting the two first and second tension members 100 and 200A, each of which has a male thread portion 101 and a female thread portion 201A formed at its ends, A female coupler 300 having female threads 301 and 302 formed therein so that one side is coupled to the male thread portion 101 and the other side is coupled to a male coupler; A male coupler 400 having a male thread formed at an outside thereof so that one side is coupled to the female coupler and the other side is coupled to the adjustment coupler; And One side of the female threaded portion 505 is formed inside to engage the male coupler and the other side of the male threaded portion 506 is formed to engage the female threaded portion 201A, the pitch of the female threaded portion 505 is An adjustment coupler 500A that is not equal to the pitch of the male thread portion 506; Coupler for tension member connection, characterized in that consisting of. The method of claim 5, wherein the tension member (200A) is a tension member for connecting the tension member, characterized in that to form a tension jaw 202 in place of the lock nut to take the jig of the hydraulic device when assembling the tension member (100, 200A) Coupler. The pitch of the female thread portion 505 of the adjusting coupler 500A is equal to the pitch of the male coupler 400, and the pitch of the male thread portion 101 of the tension member 100 is the same. Coupler for tension member connection, characterized in that the pitch of the female screw portion (201A) of (200A) is the same as the pitch of the male screw portion (506) of the adjusting coupler (500A). Assembling the female coupler 300 to the first tension member 100; Assembling the adjustment coupler 500A and the male coupler 400 in order to the second tension member 200A on which the tension jaw 202 is formed; One side of the jig is bitten by the female coupler 300 and the other side is bitten by the tension jaw 202, and pulled by the hydraulic device to bring the male coupler 400 into contact with the female coupler 300; Finely turn the adjustment coupler 500A, the pitch of the female thread portion 505 being not equal to the pitch of the male thread portion 506, to match the starting point of the screw of the male coupler 400 and the female coupler 300; And When the starting point is adjusted, turning the male coupler 400 to assemble the female coupler 300; Fastening method of the coupler for connecting the tension member, characterized in that consisting of a step. In connecting the two first and second tension members 100 and 200B, A female coupler having female threads 301 and 302 formed on one side thereof to be coupled to the male thread portion 101 of the first tension member 100 and the other side to the male thread portion 510 of the adjustment coupler 500B. 300); One side of the male screw portion 510 is formed to be coupled to the female coupler and the other side of the male screw portion 520 is formed to couple to the female screw portion 202 of the second tension member 200B, the male screw portion The pitch of 510 is not the same as the pitch of the male screw portion 520; And A pair of lock nuts 150 and 250 assembled to the male threads 101 and 201 of the first and second tension members 100 and 200B, respectively; Coupler for tension member connection, characterized in that consisting of. The coupler for connecting a tension member according to claim 1, wherein a tension jaw is formed in place of the lock nuts (150, 250) of the tension member (100, 200B). Assembling the lock nut 150 and the female coupler 300 in order to the first tension member 100; Assembling the lock nut 250 and the adjustment coupler 500B in order to the second tension member 200B; The jig is bitten by the log nuts 150 and 250, respectively, and pulled by a hydraulic device (not shown) to bring the adjusting coupler 500B into contact with the female coupler 300; Finely turn the adjustment coupler 500B to match the starting point of the screw of the female coupler 300; And When the starting point is aligned, turning the female coupler 300 to assemble the female coupler to the adjusting coupler 500B; Fastening method of the coupler for connecting the tension member, characterized in that consisting of a step. In connecting the two first and second tension members 100 and 200, A female coupler 300 having a female thread portion formed at one side thereof to be coupled to the male thread portion 101 of the first tension member 100 and the other side to the male thread portion 501 of the adjustment coupler 500C; One side is formed with a male thread portion 501 to be coupled to the female coupler and the other side is formed with a female thread portion to couple to the male screw portion 201 of the second tension member 200, where the male screw portion 501 Pitch coupler 500C whose pitch is not equal to the pitch of the female thread portion; And A pair of lock nuts 150 and 250 assembled to the male threads 101 and 201 of the first and second tension members 100 and 200, respectively; Coupler for tension member connection, characterized in that consisting of. The coupler of claim 1, wherein a tension jaw is formed in place of the lock nuts (150, 250) of the tension members (100, 200). Assembling the lock nut 150 and the female coupler 300 in order to the first tension member 100; Assembling the lock nut 250 and the adjustment coupler 500C in order to the second tension member 200; The jig is bitten by the log nuts 150 and 250, respectively, and pulled by a hydraulic device (not shown) to bring the adjusting coupler 500C into contact with the female coupler 300; Finely turn the adjustment coupler 500C to match the starting point of the screw of the female coupler 300; And When the starting point is aligned, turning the female coupler 300 to assemble the female coupler to the adjusting coupler 500C; Fastening method of the coupler for connecting the tension member, characterized in that consisting of a step. 13. The tension member (100, 200, 200A, 200B), the female coupler (300), the male coupler (400), and the adjusting coupler (500, 500A) according to claim 1, 5, 9 or 12. , 500B, 500C) is a screw formed in only one direction so that all of the screws are all the right hand thread or the left coupler coupler.

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