KR102038409B1 - Reinforcing device with zig-zag type tendon structure and construction method therefor - Google Patents

Abstract

Structures such as girders can be placed on the bottom of a structure such as girder to overlap the tension material by using a staggered arrangement (zigzag arrangement) to enhance prestress introduction efficiency, and to introduce a vertical force together with the internal fixing device to reinforce the structure. Disclosed are a zigzag distributed batch wire reinforcement device and a construction method thereof capable of increasing the number of zigzag.

Description

Zig-zag distributed batch type steel wire reinforcement device and its construction method {REINFORCING DEVICE WITH ZIG-ZAG TYPE TENDON STRUCTURE AND CONSTRUCTION METHOD THEREFOR}

The present invention relates to a zigzag distributed batch type steel wire reinforcement device and a construction method thereof. More specifically, it is possible to increase the prestress introduction efficiency by zigzag placing the tension member by using the inner and outer fixing device on the bottom of the structure such as the girder, and increase the structure reinforcing effect by introducing the vertical force together with the inner fixing device. The present invention relates to a zigzag distributed batch wire reinforcement device and a construction method thereof.

1A is an exemplary diagram of a PSC girder in which a conventional vertical force is introduced.

That is, the tension member 25 is formed penetrating the lower portion of the vertical bar 20, the tension member 25 is always transmitted through the vertical bar 20 to the vertical force to the concrete body 10 and offset the vertical load to minimize the deflection It is about the PSC girder that can be done.

In this case, the vertical bars 20 are installed in the space where the center of the concrete body 10 is blocked out by using the lower plate 12, and it can be seen that the vertical force can be distributed by the inclined material 30. have.

However, the tension member 25 is to be settled after tension on the end surface of the PSC girder as before, it can not be installed for reinforcement after construction, it can only be produced by placing the vertical bar, the lower plate, the tension member when manufacturing the PSC girder.

Figure 1b is an illustration of a conventional fixing fixture for the inclination.

That is, as the anchor is disposed inclined on the ground, the fixing device 24 installed on the anchor head is rotated along the axial direction P2 of the anchor, and the hemispherical rotary sphere 40 and the hemispherical rotary sphere 40 can be disposed to be inclined. It can be seen that the recessed groove that can accommodate the adoption of the fixing plate 44 formed on the upper surface.

That is, since the anchor is a steel bar member, it is not suitable for fixing after tension, and may have a function of fixing the anchor, which is inclined by the fastening force, to the ground using a fixing nut.

Therefore, the conventional fixed material using the tension material and the inclination fixing fixture is installed in the anchor head which is arranged to be inclined to introduce the vertical force is introduced, but the vertical force and the bending moment by simply installing the tension material to reinforce the structure and settle after tension Reinforcement devices that can be introduced at the same time have not been disclosed otherwise.

Republic of Korea Patent No. 10-1501198 (Invention: APC Girder, Publication Date: March 12, 2015) Republic of Korea Patent No. 10-0707726 (name of the invention: non-cable long span using the principle of the bow and its construction method, published date: April 20, 2007)

Accordingly, the present invention provides a zigzag distributed batch reinforcement device that can be reinforced by a vertical force and a bending moment by installing a fixing device on the bottom surface of a structure such as a girder, and placing the tension member on the fixing device and fixing the tensioned material after tension. The technical problem to solve the provision of the construction method.

Zig-zag distributed arrangement type steel wire reinforcing device and its construction method for achieving the above object is installed spaced apart from one side and the other end surface (E1) of the structure, the outer fixing device is a pair of outer fixing bracket integrally formed; It is installed farther from the structure end surface (E1) than the outer fixing bracket, a pair of inner fixing bracket formed integrally with the inner fixing device; includes, some steel wires to the inner fixing device on one side and the outer fixing device on the other side The other steel wire is tensioned and fixed after being disposed in the outer fixing device on one side and the inner fixing device on the other side, whereby a bending moment M1 is introduced into the structure by the tension member, and a hemispherical cross section at the bottom of the inner fixing device. The curved downward curved steel support plate is integrally formed so that the steel wire contacting the bottom surface of the curved steel wire support plate is fixed after being tensioned so that the vertical force V is introduced together from the inner fixing device.

The zig-zag distributed batch type steel wire reinforcement device of the present invention is a structure reinforcement device capable of simultaneously introducing a bending moment and a vertical force, and installs an inner fixing device and an outer fixing device so as to face each other with respect to the center of each other, and the tension member is fixed to the inner side of one side. It is arranged in the device and the outer fixing device on the other side, and the other tension material is placed in the outer fixing device on the one side and the inner measuring device on the other side and placed after each tension, thereby increasing the prestress size introduced because the tension members overlap each other at the center of the structure. This can be effective in reinforcing the central part where the structure deflection occurs most.

In addition, the zig-zag distributed arrangement type steel wire reinforcement device allows the inner fixing device to have a lower extension height than the outer fixing device, and to form a bottom curved plate so that the tension member passes through the bottom curved plate and the vertical force is applied through the inner fixing device. It can be introduced so that the structure can be reinforced more efficiently.

Figure 1a is an illustration of a conventional PSC girder introduced vertical force,
Figure 1b is an illustration of a conventional inclined fixing fixture,
2a, 2b, 2c and 2d is an installation diagram and configuration details of the zigzag distributed batch type steel wire reinforcement device of the present invention,
Figures 3a, 3b and 3c shows a flow chart of the construction method of the zigzag distributed batch steel wire reinforcement device of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

[Zig-Zag Distributed Batch Type Steel Wire Reinforcing Device (100)]

2a, 2b, 2c and 2d is a view showing the installation and configuration of the zigzag distributed batch type wire reinforcement device 100 of the present invention.

The zigzag distributed batch type wire reinforcement device 100 is a device for reinforcing a structure 200 such as a girder using a wire (tension material) from the outside.

The zigzag distributed batch type wire reinforcement device 100 is fixedly installed at a portion that can be horizontally installed, such as the bottom of the structure 200, and because the large deflection occurs in the center due to the load acting on the structure 200. In addition to introducing the bending moment (M1) to reinforce the center portion more effectively, it is possible to simultaneously introduce the deflection of the girder and the vertical force (V) in the opposite direction, ie upwards.

Accordingly, the zigzag distributed batch type wire reinforcement device 100 includes a fixing bracket 110, an inner fixing device 120, an outer fixing device 130, and a steel wire 140 as shown in FIGS. 2A and 2B.

First, the fixing bracket 110 is a fixing member fixed to the structure 200 in order to set the inner and outer fixing devices 120 and 130 on the bottom surface of the structure 200, as shown in Figs. 2a and 2b.

Since the structure 200 is made of concrete, the inner and outer fixing devices 120 and 130 may not be installed as they are on the bottom.

In this case, the inner and outer fixing devices 120 and 130 are integrated into the fixing bracket 110 in advance, and the fixing bracket 110 is fixed to the bottom of the structure 200 to naturally fix the inner and outer fixing devices 120 and 130 to the structure 200. It will have the ability to install it.

2a and 2b, it can be seen that the fixing bracket 110 is formed of a bent plate member having a U-shaped cross section so as to be wrapped while being in contact with both side surfaces and the bottom surface of the lower structure corresponding to the lower cross-sectional shape of the structure 200.

Thus, it can be seen that two pairs (a pair of 110a, 110b and a pair of 100c, 100d) are installed so that the fixing bracket 110 is opposed to each other on the bottom of the structure 200 by using a fixture such as an anchor bolt. , The fixing bracket 110 may be made of steel.

That is, the outer fixing bracket (110a, 110b) formed integrally with the outer fixing device (130a, 130b) on the structure 200 is installed spaced apart from the end surface (E1) of the structure (200),

The inner fixing brackets 110c and 110d having the inner fixing devices 120a and 120b integrally installed are spaced apart from the end surface E1 of the structure 200 than the outer fixing brackets 110a and 110b.

The distance between the inner fixing brackets 110c and 110d from the center portion C1 is greater than the distance from the end fixing surface E1 to the outer fixing brackets 110a and 110b.

It can be seen that the pair of inner fixing brackets (110c, 110d) and the pair of outer fixing brackets (110a, 110b) are installed at positions opposite to each other based on the central portion (C1).

2A, 2C, and 2D, the inner fixing device 120 is a pair of fixings which are integrally fixed to the inner fixing brackets 110c and 110d so as to face each other based on the central portion C1 of the structure 200. Devices 120a and 120b.

Referring to FIG. 2C, since the steel wire 140 has a function of fixing after tension, the fixing plate 121 and the fixing plate 121 are disposed on the bottom of the inner fixing brackets 110c and 110d so as to be orthogonal to the longitudinal direction of the structure 200. It is composed of a plurality of reinforcing plate 122 is fixed to the bottom of the inner fixing bracket (110c, 110d) and extend in the longitudinal direction in contact with one side of the.

Accordingly, at least one tension member through-hole is formed at the center portion of the fixing plate 121 so that the steel wire 140 may be disposed through the fixing plate 121.

In this case, the steel wire 140 penetrating the through hole may be horizontally arranged, but, for example, when the steel wire 140 is disposed in a parabolic form so as to be bent downward, the fixing unit may also be fixed to the fixing plate 121 so that the steel wire 140 is not excessively disposed. 121) should be inclined.

Accordingly, the present invention integrally forms a hemispherical fixing plate 124 having a concave groove formed on one surface of the fixing plate 121, and forms a fixing unit 123 having a hemispherical head which is not confined to rotation while received and contacted with the concave groove. Let's go.

The fixing unit 123 and the hemispherical fixing plate 124 is formed so that the steel wire 140 can penetrate, and the fixing unit 123 is formed of the wedge 126 and the wedge so that the steel wire 140 can be fixed after being tensioned therein. Built-in contact with the head is embedded with a separation preventing elastic ring 127 to prevent the wedge is separated.

In addition, it is fixed to the bottom surface of the inner fixing bracket (110c, 110d), it is installed to contact the fixing plate 121 of the inner fixing device 120, the bottom surface is formed integrally with the curved steel wire support plate 125 curved downward in a hemispherical cross section It is.

Accordingly, when the steel wire 140 in contact with the bottom surface of the curved steel wire support plate 125 is fixed after being tensioned, a vertical force V is generated in the inner fixing device 120 by the prestress introduced.

As a result, the inner fixing device 120 is tensioned and fixed while the steel wire 140 penetrates and is fixed so that the prestress by the bending moment M1 is introduced and the steel wire 140 is in contact with the bottom. It can be seen that it has a function as a vertical force (V) introduction device for introducing a vertical force, the curved steel wire support plate 125 is to be integrally formed on the bottom surface of the fixing plate 121 and the inner fixing bracket (110c, 110d) This will allow stable support.

2A, 2C, and 2D, the outer fixing device 130 has the inner fixing device 120 (120a, 120b) positioned on the inner side with respect to the center portion C1 of the structure 200, but also facing each other. And a pair of fixing devices 130a and 130b fixed integrally to the outer fixing brackets 110a and 110b.

Basically, the steel wire 140 has a function as a fixing device in which the steel wire 140 is fixed after tension, like the inner fixing devices 120a and 120b, but has a function as a vertical force (V) introduction device possessed by the inner fixing devices 120a and 120b. Not.

In comparison with the inner fixing device (120a, 120b) it can be seen that the downward extension length is formed smaller and is installed close to the end surface of the structure 200.

2d, the outer fixing device 130 (130a, 130b) also has a function that the steel wire 140 is fixed after being tensioned, so that the fixing plate is disposed on the bottom of the outer fixing bracket 110a so as to be perpendicular to the longitudinal direction of the structure. It can be seen that it is composed of a plurality of reinforcing plate 132 is fixed to the bottom surface of the outer fixing bracket (110a) extending in the longitudinal direction while contacting one side of the 131 and the fixing plate 131.

Accordingly, at least one tension member through-hole is formed at the center portion of the fixing plate 131 so that the steel wire 140 may be disposed through the fixing plate 131.

Also, the steel wire 140 penetrating through the through-hole may be arranged horizontally, but when disposed in a parabolic form to bend downward, the fixing device so that the arrangement of the steel wire 140 inclined to the fixing plate 131 is not excessively made. 133 should also be arranged to be inclined to the fixing plate 131.

In this case, the hemispherical fixing plate 134 having a concave groove is integrally formed on one surface of the fixing plate 131, and the fixing unit 133 is formed with a hemispherical head which is accommodated in the concave groove and is not constrained to rotate. .

The fixing unit 133 and the hemispherical fixing plate 134 is formed so that the steel wire 140 can penetrate, and the fixing unit 133 is formed of the wedge 136 and the wedge so that the steel wire 140 can be fixed after being tensioned therein. Built-in contact with the head to prevent the separation of the wedge to prevent separation of the elastic ring 137 is the same.

The steel wire 140 is arranged in a zigzag, as shown in Figure 2a, 2b, is fixed to the inner and outer fixing device (120,130) after tension, and the inner fixing device as well as the introduction of the prestress by the bending moment (M1) simply based on the neutral axis Through 120 serves to introduce a vertical force (V) also.

In addition, since the steel wires are installed on the inner fixing device 120 and the outer fixing device 130 to overlap each other, the bending moment is overlapped at the overlapping portions of the steel wires, thereby increasing the reinforcing effect.

The zigzag arrangement of the steel wire 140 is based on FIG. 2B.

Some steel wires 141 are disposed on the inner fixing unit 120a on the left side and the outer fixing unit 130b on the right side,

The other steel wire 142 is disposed on the outer fixing unit 130a on the left side and the inner fixing unit 120b on the right side,

By placing the tension members 141 and 142 in the inner and outer fixing devices 120a, 120b, 130c, and 130d after tension, respectively,

Since the steel wires overlap each other in the center portion of the structure 200, it is possible to increase the size of the prestress to be introduced, which is effective in reinforcing the center portion where the structure sag occurs the most.

Accordingly, according to FIG. 2, four steel wires are disposed in the central portion of the structure 200, while two steel wires are disposed at both end portions, which is very zigzag because the steel wires are arranged in the inner and outer fixing devices. Become effective.

In addition, the bottom surface of the inner fixing device (120a, 120b) is formed with a curved steel wire support plate 125 bent downward in a hemispherical cross section is integrally fixed to the steel wire 140 in contact with the bottom surface of the curved steel wire support plate 125 after tension When the vertical stress (V) is generated together with the inner fixing device 120 by the pre-stress is introduced.

[Zigzag distributed batch type steel wire reinforcement device (100) construction method]

3a, 3b and 3c is a view illustrating the construction sequence of the construction method of the zigzag distributed batch type wire reinforcement device 100 of the present invention.

The zigzag distributed batch type wire reinforcement device 100 uses the inner fixing device (120: 120a, 120b) and the outer fixing device (130: 130a, 130b) to fix the bending wires after tensioning the steel wires (140: 141, 142). And are installed to act to introduce the vertical force at the same time, look at in detail as follows.

First, as shown in Figure 3a, the structure 200 may be a girder light, but it can be seen that the structure is shown as a beam member formed between the two heads of the head, such a structure 200 may be new or existing It may be a structure.

Accordingly, according to FIG. 3A, the pair of outer fixing brackets 110a and 110b integrally formed with the outer fixing devices 130a and 130b are formed to surround the bottom surface of the structure 200 so as to face the center portion C1 of the structure 200. I have fixed installation

A pair may be positioned inside the outer fixing device 130a or 130b such that the inner fixing brackets 110c and 110d integrally formed with the inner fixing device 120a and 120b are also opposed to the center C1 of the structure 200. However, it can be seen that it is also fixed to surround the bottom of the structure 200.

Next, as shown in FIG. 3B, the steel wire 141 is disposed between the inner fixing unit 120a on the left side and the outer fixing unit 130b on the right side, and the steel wire 141 is formed of the inner fixing unit 120b on the right side. It can be seen that while passing through the bottom surface of the curved steel wire support plate 125 curved downward.

Next, as shown in FIG. 3C, the steel wire 142 is disposed between the outer fixing device 130a on the left side and the inner fixing device 120b on the right side, and the steel wire 142 of the inner fixing device 120a on the left side is disposed. It can be seen that while passing through the bottom surface of the curved steel wire support plate 125 curved downward.

When the tension members 141 and 142 are fixed to the inner and outer fixing devices 120a, 120b, 130a, and 130b after tension,

First, it can be seen that the bending moment M1 introduced by being disposed so that the tension members 141 and 142 overlap with respect to the central portion C1 of the structure 200 may be at least twice as large as both ends. ) Effective for reinforcing centers,

Second, in the inner fixing device (120a, 120b) it can be seen that the vertical force (V) acts upward to be effective in reinforcing the structure 200 in addition to the bending moment.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: Zig-zag distributed batch wire reinforcement device
110: fixing bracket
110a, 110b: inner fixing bracket, outer fixing bracket
120,120a, 120b: inner fixing device
130,130a, 130b: outer fixing device
140,141,142: steel wire
200: structure

Claims (10)

A pair of outer fixing brackets 110a and 110b spaced apart from one side and the other end surface E1 of the structure 200 and formed with the outer fixing devices 130a and 130b integrally; And
A pair of inner fixing brackets 110c and 110d which are installed farther from the structure 200 end surface E1 than the outer fixing brackets 110a and 110b and in which the inner fixing devices 120a and 120b are integrally formed; Include,
Some steel wires 141 are disposed on the inner fixing unit 120a on one side and the outer fixing unit 130b on the other side, and the other steel wires 142 are on the outer fixing unit 130a on the one side and the inner fixing unit 120b on the other side. By placing and tension
The bending moment M1 is introduced into the structure 200 by the tension members 141 and 142,
The bottom surface of the inner fixing device (120a, 120b) is formed integrally with the curved steel wire support plate 125 bent downward in a hemispherical cross-section, the steel wires (141, 142) in contact with the bottom surface of the curved steel wire support plate 125 is fixed after tension Zig-zag distributed arrangement type steel wire reinforcing device for introducing the vertical force (V) from the inner fixing device (120a, 120b) together. The method of claim 1,
The structure 200 is a construction or newly constructed PSC girder,
The fixed bracket by the outer fixing bracket (110a, 110b) and the inner fixing bracket (110c, 110d) is formed to surround the bottom and bottom of the structure 200, zig-zag distributed batch type wire reinforcement device to be fixed. The method of claim 2,
The fixing brackets 110a, 100b, 100c, and 100d are formed of a bent plate material having a U-shaped cross section so as to be wrapped while being in contact with both side and bottom surfaces of the lower part of the structure according to the lower cross-sectional shape of the structure 200. Zig-zag distributed batch wire reinforcement system to be installed. The method of claim 1,
The inner fixing device (120a, 120b) is
A fixed plate 121 disposed to be orthogonal to the longitudinal direction of the structure 200;
A hemispherical fixing plate 124 having a concave groove formed integrally on one surface of the fixing plate 121;
Included in the concave groove and the fixing unit 123 is formed hemispherical head is not constrained rotation;
The tension members 141 and 142 penetrate the fixing plate 121, the hemispherical fixing plate 124, and the fixing unit 123 so that the steel wires 1411 and 142 may be fixed after the tension in the fixing unit 123. The wedge 126 and the zig-zag distributed arrangement reinforcement device is built to be in contact with the head of the wedge to prevent the separation of the wedge embedded elastic ring (127). The method of claim 4, wherein
A plurality of reinforcing plates 122 are further formed in contact with one side of the fixing plate 121 and extended in the longitudinal direction by being fixed to the bottom surfaces of the inner fixing brackets 110c and 110d, such that the curved steel wire support plate 125 is fixed plate. Zig-zag distributed arrangement type steel wire reinforcing device to be integrally formed on the bottom surface 121 and the reinforcing plate (122). The method of claim 1,
The outer fixing device (130a, 130b) is
A fixing plate 131 disposed on the bottom of the outer fixing brackets 110a and 110b to be perpendicular to the longitudinal direction of the structure;
A plurality of reinforcing plates 132 fixed to the bottom of the outer fixing brackets 110a and 110b and extending in the longitudinal direction while being in contact with one side of the fixing plate 131;
A hemispherical fixing plate 134 having a concave groove formed integrally on one surface of the fixing plate 131;
Hemispherical head which is accommodated in the concave groove is not formed while the rotation is not constrained and is formed in contact with the head of the wedge 136 and the wedge so that the steel wire 140 can be fixed after being tensioned therein to prevent the wedge from being separated. Zig-zag distributed arrangement type wire reinforcement device including; anchorage 133 is built-in anti-separation elastic ring (137). (a) installing a pair of outer fixing brackets 110a and 110b integrally formed with outer fixing devices 130a and 130b so as to be spaced apart from one side and the other end surface E1 of the structure 200;
(b) Installing a pair of inner fixing brackets 110c and 110d in which the inner fixing apparatuses 120a and 120b are integrally formed so as to be further spaced apart from the end surface E1 of the structure 200 than the outer fixing brackets 110a and 110b. Doing;
(c) The steel wire 141 is disposed in the inner fixing device 120a on one side and the outer fixing device 130b on the other side, and the other steel wire 142 is the outer fixing device 130a on one side and the inner fixing device on the other side. Placing at 120b, and tensioning and fixing the wires;
The bending moment M1 is introduced into the structure 200 by the tension members 141 and 142, and the curved steel wire support plate 125 curved downward in a hemispherical cross section is integrally formed on the bottom of the inner fixing device 120a and 120b. Method for constructing a zigzag distributed arrangement type steel wire reinforcement device that the steel wires (141, 142) in contact with the bottom surface of the curved steel wire support plate 125 is fixed after being tensioned so that the vertical force (V) is introduced together from the inner fixing device (120a, 120b), The method of claim 7, wherein
The structure 200 of the step (a) is a construction or newly constructed PSC girder,
The fixing bracket 110 by the outer fixing bracket (110a, 110b) and the inner fixing bracket (110c, 110d) is formed so as to surround the bottom and bottom of the structure 200 to be fixedly installed,
The fixing bracket is formed of a bent plate material of the U-shaped cross section so as to surround the bottom surface of the structure 200 in contact with the lower cross-sectional shape of the structure 200 as a zig-zag distributed arrangement reinforcement to be fixed to the structure by a fixture. Device construction method. The method of claim 7, wherein
Inner fixing device (120a, 120b) of the step (b)
A fixed plate 121 disposed to be orthogonal to the longitudinal direction of the structure 200; A hemispherical fixing plate 124 having a concave groove formed integrally on one surface of the fixing plate 121; And a fixing member 123 formed with a hemispherical head which is accommodated in the concave groove and is not constrained to rotate. Tension members 141 and 142 penetrate the fixing plate 121, the hemispherical fixing plate 124, and the fixing member 123. The steel wires (1411, 142) in the anchorage 123 inside the anchorage 123 is built in contact with the head of the wedge 126 and the wedge to be fixed after the tension to prevent the separation of the elastic wedge ( 127) is built in,
A plurality of reinforcing plates 122 are further formed in contact with one side of the fixing plate 121 and extended in the longitudinal direction by being fixed to the bottom surfaces of the inner fixing brackets 110c and 110d, such that the curved steel wire support plate 125 is fixed plate. Zig-zag distributed arrangement type steel wire reinforcement device to be integrally formed on the bottom surface (121) and the reinforcing plate (122). The method of claim 7, wherein
The outer fixing device (130a, 130b) of the step (c),
A fixing plate 131 disposed on the bottom of the outer fixing brackets 110a and 110b to be perpendicular to the longitudinal direction of the structure; A plurality of reinforcing plates 132 fixed to the bottom of the outer fixing brackets 110a and 110b and extending in the longitudinal direction while being in contact with one side of the fixing plate 131; A hemispherical fixing plate 134 having a concave groove formed integrally on one surface of the fixing plate 131; Hemispherical head which is accommodated in the concave groove is not formed while the rotation is not constrained and is formed in contact with the head of the wedge 136 and the wedge so that the steel wire 140 can be fixed after being tensioned therein to prevent the wedge from being separated. Zig-zag distributed batch type wire reinforcing device construction method comprising a; fixing fixture 133 is built-in anti-separation elastic ring (137).

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