KR101860336B1 - Apparatus for reinforcing concrete structure - Google Patents

Abstract

According to the present invention, there is provided a concrete structure reinforcing apparatus which surrounds and reinforces an outer periphery of a concrete member in an annular shape, the concrete structure reinforcing apparatus comprising: a plurality of elongated tension members arranged at an outer periphery of the concrete member; And a plurality of connecting devices provided between the plurality of tension members to allow the tension members to be connected to each other, the connecting device including a tension member connection portion, (Expansion in a direction perpendicular to the axis of the concrete member) of the concrete member is suppressed by being installed in contact with the outer surface of the member.
In accordance with the present invention, there is provided an apparatus comprising: a plurality of tension members; a plurality of connecting devices connecting the plurality of tension members to each other to enclose an outer periphery of a concrete member, the connecting device comprising a tension member connection, Includes a passage passing through a tension member and a fixing section provided at an end of the passage so that the concrete member can be quickly and easily reinforced to increase the durability against an upper load and an external force and ensure safety, The connecting device is installed in contact with the outer surface of the concrete member to suppress the horizontal expansion of the concrete member.

Description

[0001] Apparatus for reinforcing concrete structure [0002]

This embodiment relates to a concrete structure reinforcing apparatus and a method for reinforcing concrete structures using the same. In other words, by binding concrete members such as pillars and beams of concrete structures in the circumferential direction, it is possible to prevent the concrete structure from being damaged by suppressing flexural deformation and shear deformation caused by external forces such as earthquake, and to improve the structural stability of the aged concrete structure And more particularly, to a method of reinforcing a concrete structure and a method of reinforcing a concrete structure using the same.

In the case of a concrete member such as a column of a concrete structure, it should be able to withstand not only the load of the upper structure but also an external force such as an impact applied from the outside or an earthquake. Therefore, it is a method to reinforce the concrete member in order to prepare for the aging of the concrete structure or the earthquake after the concrete structure is constructed. Generally, the outer member of the concrete member is reinforced by surrounding it with reinforced concrete, fiber or steel plate.

However, when reinforcing concrete members with reinforced concrete, the weight is increased, the construction period and cost are increased, and construction is complicated. Further, in the case of reinforcing with fiber, it is impossible to increase the rigidity of the concrete member. In the case of reinforcing with the steel plate, it is not easy to join the steel plate with the existing concrete member. Depending on the size of the steel plate, additional equipment may be needed to install the steel plate.

Therefore, in order to solve the problem of the above reinforcing methods, "Concrete Structure Reinforcement Method" of Korean Patent No. 10-1506110 and "Concrete Structure Reinforcement Apparatus and Method of Reinforcing It" of Korean Patent Publication No. 10-2015-0081408 are disclosed .

In the concrete structure, a steel joint is disposed at each corner of the concrete structure, a steel material to be coupled to the steel joint is provided between the steel joints, and a tensile force applied to the steel by the screwing force of the steel and the steel joint, And a reinforcing device or reinforcement method for reinforcing concrete structures by applying a binding force acting in the direction of the center of the cross section.

However, the above-mentioned prior arts have a problem that they are not applicable or are difficult to apply when the concrete structure is not rectangular, that is, when the corner is not formed at a right angle due to a construction error or the like even if it is a cylinder or a square.

In addition, when the side surface of the concrete structure is not flat, the steel material is bent and a bending stress is generated to lower the tensile strength of the steel material, and it is not easy to fasten the steel material to the steel material connecting portion.

In addition, since the steel material is spaced apart from the side surface of the concrete structure, it is difficult to cope with the suppression of the inflated shape of the concrete structure, and it is difficult to join the steel material and the steel material connecting portion.

Patent 1: Korean Patent No. 10-1506110 Patent 2: Korean Patent Publication No. 10-2015-0081408

In order to solve the above problems, the present invention includes a plurality of tension members and a plurality of connecting devices for connecting the plurality of tension members to each other, thereby quickly and easily reinforcing the concrete member and thereby improving the durability against the upper load, And to provide a concrete structure reinforcement device for securing safety.

Also, the present invention provides a concrete structure reinforcing apparatus in which a tension member and a connecting device are installed in contact with an outer surface of a concrete member, thereby suppressing the horizontal expansion of the concrete member as much as possible.

It is also an object of the present invention to provide a concrete structure reinforcing apparatus in which the tightening of the tension member is quick and the separation of the tension member is prevented by improving the structure of the tension member and the connecting device.

Also, it is intended to provide a concrete structure reinforcing apparatus that does not generate a bending stress in a tension member by providing a rotating fastening means such as a fastening shaft or a rotary shaft.

Further, by providing an auxiliary connection device between the tension member and the connecting device, it is possible to prevent the tension member from contacting the side surface of the concrete member without making the end surface of the tension member large, The tension member can be manufactured without considering the connection with the connecting device and the tension member can be easily reassembled and the part where the auxiliary connecting device is coupled with the connecting device can use bolts and nuts Thereby providing an economical concrete structure reinforcement device.

A concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention includes a plurality of elongated tension members disposed on an outer periphery of the concrete member, the reinforcing member reinforcing the concrete structure by surrounding the outer periphery of the concrete member in an annular shape. And a plurality of connection devices provided between the plurality of tension members to allow the tension members to be connected to each other, wherein the connection device includes a tension member connection portion to which the tension member can be fastened on both sides, Wherein the tension member includes fastening means that can be fastened to the tension member connection portions on both sides of the tension member, the stress member being disposed in contact with the outer periphery of the concrete member as a whole, thereby suppressing the horizontal expansion of the concrete member have.

In addition, one side of the connecting device may be integrally formed at one end of the tension member.

In addition, in the connecting device, the tension member connecting portion, which is not integrally formed at one end of the tension member, includes a passage passing through the tension member and a fixing portion provided at an end portion of the passage, Is a through hole penetrating the tension member connection portion and the fixing portion is a spherical recessed portion formed at the end portion of the passage and formed into a spherical surface or an extension portion formed at the end portion of the passage and having a larger cross- Or an extension formed at the end of the spherical recess and the spherical recess formed at the end of the passage.

The fastening means on the side of the tension member that is not integrally formed with one side of the connecting device may be a nut fastened to the tension member or a nut coupled to the rotary tool and a nut integrally coupled to the tension member Or a nut coupled to the tension member and a nut separate from the nut.

In addition, the tension member connecting portion on one side of the connecting device may include a passage passing through the tension member, and a fixing portion provided at an end of the passage.

In addition, the passage may be a through-hole passing through the tension member connecting portion, or an incision opening that is opened toward the concrete member from the tension member connecting portion.

The fixing portion may be an orthogonal cutout portion orthogonal to the passage and opened to the concrete member, or a spherical recessed portion formed at an end portion of the passage and formed into a spherical surface, or may be formed at an end portion of the passage, The spherical recessed portion formed at the end of the passage and the extension formed at the end of the spherical recessed portion may be formed together.

The fastening portion is an orthogonal cutting portion orthogonal to the passage and opened toward the concrete member, and the fastening means is a plate-like fastening plate formed in a direction perpendicular to the axis of the tension member, and the fastening plate is formed with a cut- And the cutout portion corresponding to the cutout portion is formed in the orthogonal cutout portion so that the fastening plate is firmly fixed without detachment.

The fastening means on one side of the tension member may be a plate-like fastening plate formed in a direction perpendicular to the axis of the tension member or a circular shaft-shaped fastening axis formed in a direction perpendicular to the axis of the tension member, And a nut provided on a side surface of the rotary shaft and the rotary shaft, the shaft being provided in the tension member.

The apparatus may further include an auxiliary coupling device disposed between the tension member and the coupling device to connect the tension member and the coupling device.

In addition, the auxiliary connection device may include a first auxiliary connection device connected to the tension member, and a second auxiliary connection device connecting the first auxiliary connection device and the connection device.

The first auxiliary connecting device and the second auxiliary connecting device may be integrally formed.

In addition, the first auxiliary connecting device may include a passage passing through the tension member, and a fixing portion provided at an end of the passage.

Also, the passage may be a through-hole passing through the first auxiliary connection device, or an incision opening opened toward the concrete member in the first auxiliary connection device.

Further, the fixing portion may be an orthogonal cut portion formed at an end of the passage and perpendicular to the passage and opened toward the concrete member, or may be formed at an end portion of the passage and perpendicular to the passage, Is a large expansion part.

Further, the fastening means may be a plate-like fastening plate formed in a direction perpendicular to the axis of the tension member, or a circular shaft-shaped fastening axis formed in a direction perpendicular to the axis of the tension member.

The second auxiliary connecting device may further comprise fastening means at its end which can be fastened to the tension member connecting portion of the connecting device, wherein the fastening means is a hemispherical rotary screw, a nut, And a nut provided on a side surface of the sphere.

In addition, the second auxiliary connecting device may include a bolt head or a nut which is engaged with the first auxiliary connecting device.

The apparatus may further include a finishing plate for covering the concrete member provided with the plurality of tension members and the plurality of connecting devices to make the appearance of the finishing plate smooth and the finishing plate is coupled to the concrete member, .

A method of constructing a concrete structure using a concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention includes arranging a plurality of tension members and a plurality of connecting devices around a concrete member of a concrete structure to be reinforced, And then fastened to the fastening means and installed at a precise position, and then tightly fastened by the fastening means.

A plurality of tension members, a plurality of auxiliary connecting devices and a plurality of connecting devices are disposed around a concrete member of a concrete structure to be reinforced, and after the tension member, the auxiliary connecting device and the connecting device are connected to each other, And then tightly fastened by the fastening means after being installed at the correct position.

By the present invention, by including a plurality of tension members and a plurality of connecting devices connecting the plurality of tension members, it is possible to quickly and easily reinforce the concrete member to increase the durability against the upper load and external force, Can be provided.

Further, since the tension member and the connecting device are installed in contact with the outer surface of the concrete member, the horizontal expansion of the concrete member can be suppressed as much as possible.

Further, by improving the structure of the tension member and the connecting device, the fastening of the tension member can be quick and the separation of the tension member can be prevented.

Further, by providing the fastening means such as the fastening shaft and the rotary shaft, it is possible to provide the effect that the bending stress is not generated in the tension member.

Further, by providing an auxiliary connection device between the tension member and the connecting device, it is possible to prevent the tension member from contacting the side surface of the concrete member without making the end surface of the tension member large, The tension member can be manufactured without considering the connection with the connecting device and the tension member can be easily reassembled and the part where the auxiliary connecting device is coupled with the connecting device can use bolts and nuts Thereby providing an economical effect.

FIGS. 1A to 1E are perspective views and a perspective exploded view of a concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention, the perspective view of a concrete member having a rectangular cross section, and the concrete structure reinforcing apparatus. FIG.
FIGS. 2A to 2E are perspective views and exploded perspective views of a concrete structure reinforcing apparatus according to another embodiment of the present invention, a perspective view of a concrete member having a rectangular cross section, and a concrete structure reinforcing apparatus. FIG.
FIGS. 3A to 3E are perspective views and perspective views of a concrete structure reinforcing apparatus according to another embodiment of the present invention; FIGS. 3A to 3E are perspective views of a concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention; FIG.
4A to 4G are perspective views and exploded perspective views of a concrete structure reinforcing apparatus and a perspective view in which another embodiment of a concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention is installed in a concrete member having a rectangular cross section.
5A to 5G are perspective views and exploded perspective views of a concrete structure reinforcing apparatus and a perspective view in which a concrete structure reinforcing apparatus according to an exemplary embodiment of the present invention is mounted on a concrete member having a circular cross section.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a concrete structure reinforcing apparatus according to an example of the present invention will be described in detail with reference to the drawings.

First, a concrete structure reinforcing apparatus according to an example of the present invention will be described with reference to FIGS. 1 and 2. FIG.

A concrete structure reinforcing apparatus according to an example of the present invention is an apparatus for reinforcing a concrete member 1 installed on the outer periphery of a concrete member 1 such as a concrete column or a concrete beam, A plurality of tensioning members 10 and a plurality of connecting devices 30 provided between the tensioning members 10 to connect the plurality of tensioning members 10, Includes a tension member connection (31) to which the tension member (10) can be fastened on both sides, and the tension member (10) includes fastening means that can be fastened to the tension member connection part (31) , The tension member 10 is disposed in contact with the outer periphery of the concrete member 1 as a whole, so that the horizontal expansion of the concrete member 1 can be suppressed.

Hereinafter, for convenience of explanation, the concrete member 1 is assumed to be a concrete column. The vertical direction refers to the axial direction of the concrete member 1, and the horizontal direction refers to the direction perpendicular to the axial direction.

The concrete structure reinforcing apparatus of the present embodiment has a structure in which the tension member 10 and the connecting device 30 are annularly arranged so as to surround the outer periphery of the concrete member 1 to bind the concrete member 1 in the horizontal direction, 1, the durability of the concrete member 1 is increased with respect to the external force such as an upper load, an impact load, a seismic load, etc., and safety can be ensured. For example, the durability and stability of the concrete member 1 can be increased by suppressing the phenomenon that the side surface of the concrete member 1 is inflated by the vertical load and horizontal load acting on the concrete member 1.

The tension member 10 is coupled to the connecting device 30 provided on both sides of the tension member 10 and is particularly tied to the tension member connecting portion 31 of the connecting device 30 to tie the concrete member 1 in the horizontal direction Thereby reinforcing the concrete member 1.

The tension member 10 is elongated and formed so as to be in contact with the outer surface of the concrete member 1 as a whole, so that the horizontal expansion of the concrete member 1 can be suppressed. That is, in the prior art, only the connecting device is contacted at the edge of the concrete member or the like, and the tension member is spaced apart from the side surface of the concrete member, so that the side surface of the concrete member is insufficiently suppressed.

The tension member 10 may be formed in a shape of a straight line (see FIG. 1C), a line (see FIG. 3E), or a curve (see FIG. 5C) depending on the shape of the concrete member 1. The torsion-like tension member 10 can be applied to a case where the concrete member 1 is a square column and the connecting device 30 is omitted at some corners. In this case, the number of parts is reduced, which is economical, and the fastening part is reduced, so that fastening can be performed quickly. The curved tension member 10 can be easily applied to a case where the concrete member 1 is a cylinder.

In addition, the tension member 10 can be fastened to both ends of the tension member 10 and coupled to the coupling device 30. The fastening means may be formed of a conventional bolt head 29 (not shown) formed integrally with the tension member 10 or a nut 28 (see FIG. 1C) which is fastened to a screw formed at the end of the tension member 10 Or may be formed of a fastening plate 22 (see FIG. 1C), a fastening shaft 24 (see FIG. 1E), a rotary shaft 26 (see FIG. The fastening means can be provided with the same fastening means on both sides of the tension member 10 or with different fastening means.

Referring to FIG. 1C, the nut 28 is the most convenient fastening means. That is to say fastened to the screw formed at the end of the tensional element 10 as shown in the figure, thereby fixing the tensional element 10 to the connecting device 30. The nuts 28 may be provided in one or more. A plurality of the nuts 28 are effective for preventing the loosening of the nuts 28.

3C), the bolt head is formed at one end of the tension member 10 and the tension member 10 is fastened to the connecting device 30 at the opposite side of the bolt head 29, And then fixed. The bolt head may be inserted and fixed to the orthogonal cutout section 352 described later.

The clamping plate 22 may be formed in a rectangular shape (see FIG. 1C), or may be formed in a hexagonal shape, an octagonal shape, a circular shape, or the like, as a plate shape formed in a direction perpendicular to the axis of the tension member 10. That is, a hexagonal bolt head can be regarded as a kind of fastening plate. In this embodiment, since the side surface of the tension member 10 is provided in contact with the concrete member 1, when the fastening means such as a bolt head is employed, the entire cross section of the tension member 10, Is preferably formed to have a cross-sectional size of the size of a bolt head or to be formed on the concrete member 1 so as to be in contact with the concrete member 1.

In addition, in the case of the fastening plate 22, the cut-out portion 222 is formed, and the cut-out portion 353 is formed in the orthogonal cut-out portion 352, so that the fastening plate 22 can be firmly coupled without releasing. It is preferable that the cut-out portion 222 is formed so as to be in contact with the concrete member 1 and the cut-out projection portion 353 is formed to correspond to the cut-out portion 222.

Referring to FIG. 1E, the fastening shaft 24 may be a circular shaft formed on both sides of the tension member 10 at right angles to the axis, that is, on the upper and lower sides. The tension member 10 is fixed to the tension member connection portion 31 and is rotatable with respect to the tension member connection portion 31 by the fastening shaft 24 so that a bending stress is not generated in the stress member 10. [ That is, even when the side surface of the concrete member 1 is uneven, protruded, or when the concrete member 1 is not exactly square, unnecessary stress is not generated by the rotation of the tension member 10, 10 does not cause loss of tensile strength.

The fastening shaft 24 may be formed in the fastening portion 35 of the tension member connecting portion 31 in which the fastening shaft 24 is inserted, that is, the orthogonal cutout portion 352, . That is, a groove may be formed on the inner side of the orthogonal cutout portion 352 toward the tension member 10 to form a hemispherical groove so that the fastening shaft 24 can be smoothly rotated after being inserted.

The rotary member 26 has a hemispherical shape provided in the tension member 10 so that the tension member 10 is rotatably provided with respect to the tension member connection portion 31 by the rotary member 26, Can freely rotate. Even when the side surface of the concrete member 1 partially protrudes or the angle of the corner of the concrete member 1 is not exactly right or the side surface of the concrete member 1 is not an accurate arc designed, It is possible to prevent unexpected occurrence of warpage or bending stress in the connecting device 30 and to prevent breakage or bending stress from occurring in the connecting device 30. [

The rotation hole 26 is formed with a hole at the center, and the tension member 10 can be inserted through the hole. A nut 28 is further provided on the side surface of the rotary shaft 26, that is, on the end surface of the tension member 10 in the rotary shaft 26, so that the rotary shaft 26 can be supported. In this case, a nut (not shown) may be provided on the outer side of the rotary tool 26, that is, on the end side of the tension member 10 28 are integrally joined to each other to facilitate the fastening. In addition, the rotation tool 26 may be formed integrally with the tension member 10 and formed.

The fastening means may be formed integrally with the tension member 10 (for example, the fastening plate 22 of Fig. 1C, the fastening shaft 24 of Fig. 1E) or formed of a separate member, (Not shown), or may be threaded (e.g., nut 28 of FIG. 1C). In addition, fastening means of the same shape may be provided at both ends of the tension member 10, or fastening means of different shapes may be provided. For example, both sides may be formed of a nut 28, or a nut 28 on one side and a fastening plate 22 on the other side as shown in FIG. 1C.

The connecting device 30 is provided between the plurality of tension members 10 to connect the tension members 10 to each other. For example, when the concrete member 1 is a quadrangular column, the connecting device 30 Are arranged at the corners of the concrete member (1) or the like to connect the plurality of tension members (10).

The connecting device 30 may be formed separately from the tension member 10 or may be integrally formed at one end of the tension member 10. That is, as shown in FIG. 1, the connecting device 30 may be formed separately from the tension member 10 and connected to the tension member 10 on both sides.

Also, as shown in FIG. 2, the connecting device 30 may be integrally coupled to one end of the tension member 10. When integrally formed, the integral part does not require the fastening means or the like of the tension member 10 and the structure is simple, so that the fastening operation can be performed quickly and the manufacturing cost can be saved. When the connecting device 30 is integrally formed at one end of the straining member 10, the connecting portion of the connecting device 30 and the straining member 10 may be referred to as a straining connecting portion 31.

1), or may be formed in a straight shape (see FIG. 2) or a curved shape (see FIG. 5).

The connecting device 30 may include a tension member connecting portion 31 to which ends of the tension member 10 are connected on both sides, that is, a portion to which the tension member 10 is connected. The tension member connecting portion 31 may have the same shape or a different shape on both sides of the connecting device 30. [ In addition, the tension member connecting portion 31 may include the passage portion 33 and the fixing portion 35.

The passageway 33 can be formed as a circular, square, or other hole that passes through the tension member 10, that is to the side of the tension member 10, or it can be formed as a circular, have.

In the embodiment of Figure 1, the passage 33 comprises a through-hole 332 through which the tension member 10 passes, and a cutout 334 through which the tension member 10 passes but which is open toward the concrete member 1 A branch shape is shown.

2C, the tension member connecting portion 31 on the opposite side of the portion integrally connected to the tension member 10 is provided with an end portion of the passage 33 and the passage 33, that is, a surface exposed to the outside, The tension member connecting portion 31 may be referred to as a tension member connecting portion.

The passage 33, which is an incision 334, facilitates the insertion of the straining member 10 and allows the straining member 10 to be quickly and simply coupled to the connecting device 30. The formation of the incision 334 open to the side of the concrete member 1, that is to the inside of the coupling device 30 allows the tension member 10 to come into contact with the side surface of the concrete member 1, It may be advantageous to prevent it from deviating outwardly.

The fixing part 35 is provided at the end of the passage 33 so that the tension member 10 installed through the passage 33 is fixed to the connecting device 30, It can be said that

The fixing portion 35 may be an orthogonal cutout portion 352 (see FIG. 1C), a spherical recessed portion 354 (see FIG. 1E), or an extended portion 356 depending on the shape of the fastening means of the tension member 10. (See FIGS. 1C and 2C), or the spherical recessed portion 354 and the extended portion 356 are formed together (see FIG. 1E) or the like so that the tension member 10 is fixed to the connecting device 30 .

Referring to FIG. 1C, the orthogonal cutout 352 may be formed in a shape that is orthogonal to the passageway 33 and open to the concrete member 1 at a cross section larger than the passageway 33. The orthogonal cutout 352 may be formed at the end of the passage 33 when the passage 33 is the cutout 334. The orthodontic cutout 352 is inserted and fixed with a fastening plate 22 which is fastening means of the tension member 10. In this case, the tension member 10 can be easily inserted and fixed in the connecting device 30. [

Referring to FIG. 1E, the spherical recessed portion 354 is a groove formed as a spherical surface at the end of the passage 33, and a rotation hole 26, which is a fastening means of the tension member 10, may be fixed. The spherical recessed portion 354 is formed in a spherical shape corresponding to the hemispherical shape of the rotary shaft 26, so that the rotary shaft 26 can be smoothly rotated. At the end of the spherical recess 354, an enlarged portion 356, which will be described later, is formed so as to fasten the nut 28. The nut 28 is threaded into the threads of the tension member 10 to engage the tension member 10 by supporting the rotary member 26. And may also be screwed directly to the tension member 10 by forming a screw in the inner hole of the rotation hole 26. [ Further, it is necessary to form the nut 28 so as to be spaced a predetermined distance from the extended portion 356, so that the rotation of the rotary tool 26 does not interfere with rotation. It is also necessary that the passage (33) has a clearance so that the tension member (10) does not hinder rotation about the rotary member (26).

Referring to FIG. 1C, the extension 356 may have a larger cross-section than the passage 33 at its end when the passage 33 is a through-hole 332. That is, the expansion portion 356 is a space in which the bolt head 29, the nut 28, and the like, which are fastening means of the tension member 10, are located. In FIG. 1C, the nut 28 is formed as a rectangular space. In FIG. 2C, the nut 28 is formed in a space where the nut 28 can be fastened to the screw of the end of the tension member 10, .

The fixing portion 35 may have the fixing portions 35 of the same shape formed on both sides of the connecting device 30 or the fixing portions 35 of different shapes may be formed. 1C, one side is formed as an orthogonal cut-out portion 352 for inserting the fastening plate 22 and the other side is formed with a rectangular hole having a cross section larger than the nut 28 so that the nut 28 can be fastened. And an extension portion 356 extending inwardly. 1E, one side is formed with an orthogonal cutout portion 352 into which the fastening shaft 24 is inserted, and the other side is formed with a spherical recessed portion 354 into which the rotation hole 26 is inserted and an enlarged portion 356 Respectively.

3 to 4, an auxiliary coupling device 40 may be provided between the tension member 10 and the coupling device 30 to connect the tension member 10 and the coupling device 30. [ In this case, the tension member 10 is engaged with the auxiliary connection device 40, and the auxiliary connection device 40 is coupled with the connection device 30. [

The auxiliary connection unit 40 includes a first auxiliary connection unit 42 connected to the tension member 10 and a second auxiliary connection unit 42 connecting the first auxiliary connection unit 42 and the connection unit 30. [ (44). The second auxiliary connecting device 44 may be formed integrally with the first auxiliary connecting device 42 (see FIG. 4) or formed separately (see FIG. 3).

The first auxiliary connecting device 42 includes a passage 33 connected to the tension member 10 and leading to the tension member 10 and a fixing portion 35 provided at the end of the passage 33 can do. The passage 33 and the fixing portion 35 of the first auxiliary connecting device 42 are similar in shape and function to the passage 33 and the fixing portion 35 of the coupling device 30 described above. Therefore, the connection device 30 described above is referred to for a detailed description thereof.

4, the second auxiliary connecting device 44 may be integrally formed with the first auxiliary connecting device 42, in which case the second auxiliary connecting device 44 is simply connected to the first auxiliary connecting device 42 As shown in Fig. When the second auxiliary connecting device 44 is integrally formed with the first auxiliary connecting device 42, a separate structure for connecting the two auxiliary connecting devices 44 is unnecessary, so that the fastening operation is easy and the cost can be saved.

Referring to FIG. 3, the second auxiliary connecting device 44 may be formed separately from the first auxiliary connecting device 42. In this case, the second auxiliary connecting device 44 may be coupled to the first auxiliary connecting device 42 by forming a bolt head 29 on the end of the second auxiliary connecting device 44 coupled to the first auxiliary connecting device 42. Instead of the bolt head 29, a nut 28, a fastening plate 22, or the like may be formed.

The second auxiliary connecting device 44 may be coupled to the connecting device 30 at an end thereof to which the connecting device 30 is coupled. The fastening means provided on the connecting device 30 may be the same as the fastening means provided on the end of the tension member 10. In other words, the second auxiliary connecting device 44 may be formed with a hemispherical rotating tool 26, a nut 28, or the like. For a more detailed description, refer to the fastening means of the tension member 10 described above.

Referring to FIG. 3C, the first auxiliary connecting device 42 includes a passage 33 through which the tension member 10 passes. The side surface of the tensile member 10 inserted into the incision 334 is brought into direct contact with the side surface of the concrete member 1 and thus is very effective in suppressing the horizontal pylon of the concrete member 1. [ The second auxiliary connecting device 44 connecting the first auxiliary connecting device 42 and the connecting device 30 is spaced apart from the side surface of the concrete member 1 and connected to the connecting device 30. In other words, by providing the auxiliary connection device 40, the side surface of the concrete member 1 can be effectively prevented from being brought into contact with the side surface of the concrete member 1 without increasing the cross section of the tension member 10. Accordingly, it is possible to reduce the cross section of the tension member 10 to reduce the cost, and it is not necessary to manufacture the tension member 10 in a stepped manner, which facilitates manufacture. In the case of the second auxiliary connection device 44, And the shape of the tension member 10 can be standardized, so that the manufacturing cost of the tension member 10 can be saved.

With reference to Fig. 5, the above-described examples can be applied even when the concrete member 1 is a cylinder, and a description thereof will be described with reference to the above description.

Also, after a plurality of concrete structure reinforcing devices composed of the plurality of tension members 10 and the plurality of connecting devices 30 are installed in the longitudinal direction of the concrete member 1, the concrete member 1 is entirely covered, (Not shown). The finishing plate is formed of a flat plate, a square plate, a semicircular plate or the like according to the shape of the concrete member 1 to cover the concrete member 1 to improve the appearance.

The finishing plate may be coupled to the concrete member 1, the tension member 10, or the connecting device 30. That is, they may be directly coupled to the holes formed in the concrete member 1 with bolts or the like, or may be formed over the tension member 10 by forming a ring, or may be provided in the connecting device 30 or the auxiliary connecting device 40 Can be combined.

The method of reinforcing a concrete structure using a concrete structure reinforcing apparatus according to an embodiment of the present invention is characterized in that a plurality of tension members 10 and a plurality of connecting devices 30 are installed around a concrete member 1 of a concrete structure to be reinforced first And after they are connected to each other, they are fastened to the fastening means. And the fastened member can be firmly fastened by the fastening means after moving and installing the fastened member at the correct position to be installed.

1C, a plurality of tension members 10 and a plurality of connecting devices 30 are arranged around the concrete member 1 and the end portions of the tension members 10 to which the nuts 28 are not fastened, The fastening plate 22 is inserted into the orthogonal cutout 352 while the nut 28 is fastened by inserting the portion formed with the nut 30 into the passage 33 of the connecting device 30. [ After that, place the reinforcing device at the correct position to be installed and tighten the nut 28 completely.

In the concrete structure reinforcing apparatus including the auxiliary connecting device 40, first, a plurality of tension members 10, a plurality of auxiliary connecting devices 40, and a plurality of connecting devices 30 And the tightening member 10, the auxiliary connection unit 40, and the connection unit 30 are connected to each other, and then the tightening unit 10 is fastened.

3C, a plurality of tension members 10, a plurality of auxiliary connecting devices 40 and a plurality of connecting devices 30 are arranged around the concrete member 1, and a plurality of second connecting devices 40, The end of the auxiliary connecting device 44 is inserted into the passage 33 of the connecting device 30 and then the nut 28 is tightened while the bolt head of the second auxiliary connecting device 44 is fastened The fastening plate 29 of the tension member 10 is inserted into the first auxiliary connecting device 42 and the fastening plate 22 of the tension member 10 is inserted into the orthogonal cutout 352 of the first auxiliary connecting device 42. After that, the reinforcement device is moved to the correct position to be installed and then tightly tightened with the nut 28 completely.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Concrete member
10: Tension member
22: fastening plate
222:
24: fastening shaft
26:
28: Nuts
29: Bolt head
30: connecting device
31: Tension member connection
33: By passage
332: Through hole
334: incision opening
35:
352: Orthogonal incision section
353:
354: spherical recessed portion
356:
40: Auxiliary connection device
42: first auxiliary connecting device
44: Second auxiliary connection device

Claims (4)

Claims [1] A concrete structure reinforcing device for reinforcing an outer periphery of a concrete member in a ring shape,
A plurality of elongate tension members disposed on an outer periphery of the concrete member; And
And a plurality of connecting devices provided between the plurality of tension members to connect the tension members to each other,
The connecting device includes a tension member connection on both sides to which the tension member can be fastened,

Said tensioning member comprising fastening means on both sides which can be fastened to said tensioning member connection,
One side of the connecting device is integrally formed at one end of the tension member,
Wherein the tension member is disposed in contact with the outer periphery of the concrete member as a whole, thereby suppressing horizontal expansion of the concrete member. delete The method according to claim 1,
In the connecting device, the tension member connecting portion, which is not integrally formed at one end of the tension member,
A passage passing through the tension member, and a fixing section provided at an end of the passage,
Wherein the passage is a through-hole penetrating the tension member connection portion,
The fixing portion may be a spherical recessed portion formed at an end portion of the passage and formed into a spherical surface or an enlarged portion formed at an end portion of the passage and having a larger cross section than the passage, And an extension formed at an end of the spherical concave portion is formed together with the groove portion. The method according to claim 1,
The fastening means on the side of the tension member, which is not integrally formed with one side of the connecting device,
Wherein the nut is a nut fastened to the tension member or a nut integrally coupled to the rotary member and a rotary member coupled to the tension member or a nut coupled to the tension member and the rotary member. Reinforcing device.

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