KR20200068936A - Structure for fixing steel reinforcements and maintaining the distance between the steel reinforcements installed in a prestressed concrete pole manufactured by using centrifugal force - Google Patents

Abstract

A structure for fixing steel reinforcements and maintaining the distance between the steel reinforcements according to the present invention fixes rebars constituting a circular steel reinforcement cage when manufacturing a prestressed concrete electric pole by centrifugal force and maintains the distance between the steel reinforcements. The present invention has advantages of having a simple configuration, having a low manufacturing cost, being easy to install in the circular steel reinforcement cage, and being excellent in fixing steel reinforcements and maintaining the distance therebetween compared to existing products.

Description

Structure for fixing steel reinforcements and maintaining the distance between the steel reinforcements installed in a prestressed concrete pole manufactured by using centrifugal force}

The present invention relates to a structure for fixing and spacing a reinforcing bar. More specifically, when manufacturing a prestressed concrete pole with centrifugal force, the reinforcing bars constituting the circular reinforcing bar are fixed, the spacing between the reinforcing bars is maintained, and the spacing between the mold and the reinforcing bar is kept constant. It is for a structure that has a low manufacturing cost, is easy to install in a circular reinforcing bar, and has an excellent effect of fixing and spacing a reinforcing bar compared to existing products.

In general, Jeonju means a pillar erected to extend and tie wires or communication lines.

Among these poles, centrifugal prestressed concrete poles are manufactured by installing a circular rebar network inside the mold, applying prestress to the tension rods, and rotating the mold while putting concrete into the mold.

In the case of the centrifugal molding, the reinforcing bar network installed inside the mold may move or move the reinforcing bar due to centrifugal force and weight and impact of the concrete to be introduced. Among the tension and reinforcing bars constituting the reinforcing bar, the tension of both ends is fixed to the tensioning device and the tension is applied, so the possibility of separation and displacement is small, but the reinforcing bar is simply coupled to the helical bar by spot welding, etc. There is a problem that there is a great possibility of departure and position movement.

As described above, when the reinforcing bar is detached or moved, it is difficult to satisfy the bending strength (KS F4304) and the bending strength varies depending on the direction.After construction, safety accidents may occur when a large external load such as a typhoon or an earthquake is applied. .

In order to solve this problem, a reinforcing bar spacer has been proposed. Reinforcing bar spacing materials are disclosed in Korean Patent Registration No. 1279609, Design Registration No. 727874.

However, although the reinforcing bar spacer can maintain a constant distance between the mold and the reinforcing bar, the reinforcing bar (reinforcing bar) cannot be prevented from moving (departing) toward the center of the mold, and the space between the reinforcing bars, for example, reinforcing bar and There is a problem that the intervals between the tense muscles cannot be kept constant.

The present invention has been proposed to solve the above problems, to prevent the separation or position movement of the reinforcing bar during centrifugal molding of a prestressed concrete electric pole, and to maintain a constant distance between the reinforcing bar and the tension bar, reinforcing bar network and mold The object of the present invention is to provide a structure for fixing and spacing a reinforcing bar, so that the spacing between the ends is kept constant.

Another object of the present invention is to provide a structure for fixing and spacing a reinforcing bar, which is simple in configuration, has a low manufacturing cost, is easy to install in a circular reinforcing network, and has an excellent effect of fixing and spacing a reinforcing bar compared to existing products. have.

Reinforcing bar fixing and spacing maintenance structure according to the present invention includes a fixing unit (100) (200) and a wire. The fixing unit 100, 200, the body; A pair of guide parts 120 formed at a lower portion of the body and spaced apart at predetermined intervals; And a reinforcing bar seating portion 130 formed inside the pair of guide portions 120.

The wires may be respectively connected to both sides of the body or may be installed to penetrate the body. When the tension bar 1 or the reinforcing bar 3 is inserted between the pair of guide parts 120, the guide part 120 is elastically deformed, and when the insertion is completed, the guide part 120 is returned to its original shape. The separation of the tension muscle 1 or the reinforcement muscle 3 located in the seating portion 130 is prevented. Then, the wire is wound and fixed by being wound around the tension muscles 1 or reinforcing muscles 3 located on both sides of the fixing unit, and is wound in a pulled state to generate tension (tensile) on the wire.

The wire and the fixing unit 100, 200 may be integrally molded by insert injection molding.

According to an example of the present structure, the fixing unit 100 and 200 may be installed such that the tension muscle 1 is inserted into the reinforcing bar seat 130. The wires passing through the wires or the body on both sides are fixed by winding the outer circumferential surface of the reinforcing bar 3 to fix the adjacent reinforcing bar 3, and then wound around the reinforcing bar 3 and another tension bar 1 adjacent to it. Can be. In this case, the fixing units 100 and 200 may be installed on all the tension muscles, but the fixing units 100 and 200 may be arranged by filtering the tension muscles 1 arranged in a circle one at a time. The wires of both fixing units 100 and 200 are fixed to the tension muscle 1 in which the fixing units 100 and 200 are not installed.

According to another example of this structure, the fixing unit 100, 200 is installed so that the tension muscle 1 is inserted into the reinforcing bar seat 130, is installed in all the tension muscle 1, the wires of both sides Alternatively, the wire passing through the body may be fixed by winding the outer circumferential surface of the reinforcing bar 3 to fix the adjacent reinforcing bar 3.

According to another example of the present structure, the fixing unit 100, 200 is installed so that the reinforcing bar 3 is inserted into the reinforcing bar seat 130, and the wires penetrating the wires or the body of both sides are neighboring tension muscles. After winding the outer circumferential surface of (1), it can be fixed by winding another tense muscle 3 adjacent to the tension muscle 1. In this case, the fixing units 100 and 200 may be installed on all the reinforcing bars 3, but the fixing units 100 and 200 may be arranged by filtering the reinforcing bars 3 arranged in a circle one by one. The wires of both fixing units 100 and 200 are fixed to the reinforcing bar 3 in which the fixing units 100 and 200 are not installed.

According to another example of this structure, the fixing unit 100, 200 is installed so that the reinforcing bar 3 is inserted into the reinforcing bar seat 130, it can be installed in all the reinforcing bar (3). The wires penetrating the wires or the body of both sides may be fixed by winding neighboring tension muscles 1, and the wires of both fixing units 100 and 200 may be fixed to the tension muscles 1.

Fastening holes 114 penetrating the front and rear surfaces of the body may be formed on both sides of the body of the fixing unit 100. One end of the wire may be installed to penetrate the fastening hole 114. Further, the other end of the wire may be wound in a ring shape. The wound portion can be unfolded by an operator during work to fix the tension muscle (1) or the reinforcement muscle (3).

The fixing unit 200 may include through holes 214 penetrating both sides of the body. The wire is installed to penetrate the through hole 214.

The wire installed in the through hole 214 may be wound at both ends or one end thereof in a ring shape. The wound portion can be unfolded by an operator during work to fix the tension muscle (1) or the reinforcement muscle (3).

The fixing unit 200 may be made of the first part 210 and the second part 220 and then the first and second parts 210 and 220 are fastened.

When at least one of the first and second parts 210 and 220 is formed with grooves 218 and 219 penetrating both sides of the body, the grooves when the first and second parts 210 and 220 are fastened ( 218 and 219 may form a through hole 214.

One of the first and second parts 210 and 220 includes a fastening protrusion 216 and the other one includes a fastener 217, and the first and second parts 210 and 220 are to be fastened. When the fastening protrusion 216 is inserted and fastened to the fastener 217, the first and second parts 210 and 220 may be coupled.

Preferably, the body, the border 112 formed to form a circle; Central portion 111; And a connecting portion 113 extending in a radial direction to connect the rim 112 and the central portion 111.

Vertical ribs 117 connecting the guide portion 120 and the connection portion 113 may be formed on both sides of the guide portion 120 in the circumferential direction. The vertical rib 117 can suppress deformation of the guide portion 120.

The rebar fixing and spacing maintaining structure according to the present invention prevents the reinforcing bar from being displaced or moved during centrifugal molding of a prestressed concrete pole, and maintains a constant distance between the reinforcing bar and the tension bar, and between the reinforcing bar and the mold. Keep the gap constant.

In addition, the structure of the present invention is simple in construction, inexpensive to manufacture, and easy to install in a circular reinforcing network, and has an excellent effect of fixing and spacing a reinforcing bar compared to existing products.

1 is a longitudinal sectional view showing a general centrifugal prestressed concrete pole.
Figure 2a is a view showing a cross-section AA' of Figure 1;
2B and 2C are cross-sectional views of BB′ of FIG. 1.
3 is a front view showing a part of a circular reinforcing bar network.
Figure 4 is a perspective view showing the fixing unit and the wire used in the structure for fixing and spacing the rebar according to the first embodiment of the present invention.
5 is a front view of FIG. 4;
6 is a front view showing the fixing unit and the wire, showing that the end of the wire is wound in a ring shape.
7 is a front view showing the fixing unit and the wire, showing that the wire extends through the through hole.
8 to 9 are cross-sectional views showing an example in which the fixing unit and the wire of FIG. 4 are installed in a circular reinforcing bar network.
Figure 10 (a) is a front view showing a fixing unit used in the rebar fixing and spacing maintenance structure according to the second embodiment of the present invention.
Figure 10 (b) is a side view of Figure 10 (a).
Figure 11 (a) is a front view showing that the fixing unit of Figure 10 (a) is divided into two parts injection molding.
Figure 11 (b) is a side view of Figure 11 (a).
12 is a front view showing that the wire is installed in the fixing unit of Figure 10 (a).
Figure 13 (a) is a front view showing a modification of the wire.
Figure 13 (b) is a side view of Figure 13 (a).
Figure 14 is a front view showing that the wire of Figure 13 (a) is installed on the fixing unit of Figure 10 (a).
15 to 18 are cross-sectional views showing an example in which the fixing unit and the wire of FIG. 12 are installed in a circular reinforcing bar network.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. Therefore, the embodiments shown in the embodiments and the drawings shown in the specification are merely examples of the present invention and do not represent all of the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be and variations.

Hereinafter, the configuration of the centrifugal prestressed concrete pole will be described first, and then the present invention will be described.

Centrifugal prestressed concrete poles include cylindrical concrete and circular reinforcing bars embedded inside the concrete. 1 is a longitudinal sectional view showing such a concrete pole, FIG. 2A is a cross-sectional view taken along line A-A' in FIG. 1, and FIGS. 2B to 2C are cross-sectional views taken along line B-B' in FIG. 1. And, Figure 3 is a front view showing a part of the circular rebar. In FIG. 1, the illustration of the reinforcing bar is omitted.

The electric pole 10 includes a concrete 7 and a circular reinforcing bar buried inside the concrete 7. Jeonju (10) is manufactured in a length of about 7m to 17m, since the diameter of the bottom (usually referred to as a'spherical sphere') is larger than the diameter of the top (usually referred to as a'spherical sphere'), a gentle gradient (inclined) It has a cylindrical shape.

The circular reinforcing bar network includes a tension bar (1), a reinforcement bar (3), and a spiral bar (5). The tension muscle 1 and the reinforcing muscle 3 are arranged to form a circle, and the outer portion thereof is joined to the spiral muscle 5 by spot welding or the like.

The tension muscle 1 is installed to extend over the entire length of the pole 10 from the original sphere to the end, both ends of the tension muscle 1 are fixed to a tension device (not shown in the figure), and the tension device is (1) A tensile force is applied.

And, the reinforcing bar 3 is installed only in a certain section from the original sphere or is installed over the entire length depending on the physical properties (bending strength, etc.) required for the electric pole 1. In addition, the spiral muscle (5) extends from the original to the end to form a spiral along the longitudinal direction of the pole (10). On the medial surface of the spiral muscle 5, the tension muscle 1 and the reinforcement muscle 3 are combined. In place of the spiral bar 5, a circular reinforcing bar (not shown in the drawings) may be installed at a predetermined interval, and such a circular reinforcing bar is disclosed in Korean design registration No. 369850. In this specification and claims, the term'spiral bar' was used to mean both the spiral bar and the circular bar. Therefore, the helical bar 5 should be interpreted to include not only the reinforcing bars installed to continuously extend in a spiral along the longitudinal direction of the fore pole 10, but also circular reinforcing bars installed at predetermined intervals along the longitudinal direction of the fore pole.

Figure 2a shows a cross-section (A-A' cross section) of the sphere portion, it can be seen that the eight tension muscles (1) and eight reinforcement (3) are alternately installed alternately. And, Fig. 2b shows a cross section (B-B' cross section) of the middle part, it can be seen that the center part is also repeatedly installed eight strains (1) and eight reinforcement (3).

On the other hand, the length of the reinforcing bar 3 may vary depending on the physical properties (bending strength, etc.) required for the pole 10. In other words, the reinforcing bar 3 may be installed to extend over the entire length of the electric pole from the original ball to the horse ball, but may be installed only from the original ball to a certain section. Figure 2c shows that there is no part of the reinforcing bar 3 in the center portion (BB' cross section), which is reinforcing some of the reinforcing bar 3 only below the BB' cross section, and the other part of the reinforcing bar 3 is BB' cross section This is because it has been reinforced to the upper level.

4 is a perspective view showing a fixing unit and a wire used in a structure for fixing and spacing a rebar according to a first embodiment of the present invention, and FIG. 5 is a front view of FIG. 4.

As shown in the figure, the reinforcing bar fixing and spacing maintenance structure includes a fixing unit 100 and a wire 10.

The fixing unit 100 includes a body, a pair of guide portions 120 integrally formed with the body, and a reinforcing bar seating portion 130. The fixing unit 100 may be made by injection molding plastic, but is not limited thereto.

The body is formed in a circular disk shape as a whole, and includes an edge 112, a central portion 111, and a connection portion 113. The body serves to maintain a constant gap between the mold and the circular reinforcing bar. And, the center 111 has a higher height than the border (112).

The border 112 is entirely circular, except for the guide portion 120. A through hole 114 may be formed in the border 112. The through hole 114 is a hole formed to penetrate the front and rear surfaces of the rim 112, and the wire 10 is fastened to the through hole 112.

In addition, the central portion 111 is a portion surrounding the reinforcing bar seating portion 130. The connecting portion 113 is a portion extending in the radial direction from the central portion 111, and connects the rim 112 and the central portion 111. The height of the connection portion 113 increases toward the central portion 111.

Reinforcing ribs 116 may be formed in the circumferential direction in order to reinforce the connecting portion 113 inside the rim 112. In addition, vertical ribs 117 that connect the guide portion 120 and the connection portion 113 in the circumferential direction may be formed on both sides of the guide portion 120. Vertical ribs 117 may be formed with reinforcing ribs 116. The vertical rib 117 suppresses the deformation of the guide portion 120 together with the reinforcing rib 116, and this deformation suppression prevents any deviation of the reinforcing bars 1 and 3 inserted into the reinforcing bar seating portion 130. .

The pair of guide parts 120 are formed to face each other under the body. The pair of guide parts 120 are formed to be inclined toward each other, and this inclined structure allows the reinforcing bars 1 and 3 to be easily inserted into the reinforcing bar seating parts 130. And, the upper end of the guide portion 120 is spaced apart at a predetermined interval, the gap between the guide portion 120 is elastically deformed to the outside (1) (3) can be inserted and once inserted rebar (1) (3) is an interval that can be prevented from deviating.

The reinforcing bar seating portion 130 is a portion in which the reinforcing bars 1 and 3 inserted through the guide portion 120 are seated, and is preferably formed in a circular shape to be matched with the outer surface of the reinforcing bar 1 and 3.

The wire 10 may be made of metal, plastic, rubber, or the like, and commercially available wire may be used as the wire 10. Preferably, the wire 10 may be made of 0.1 mm to 5.0 mm stranded or hard steel wire.

The wire 10 is installed in the through hole 114 and is connected to and fixed to the neighboring reinforcing bar 3 or the tension bar 1. At this time, it is desirable to wind and fix the wire 10 in a pulled state so that tension (tensile) is generated, and the tension transfers the rebar network into the mold for the production of concrete poles, and the concrete is introduced into the mold and rotated at high speed. When the rebar (1) (3) is suitable for preventing the movement and departure.

6 shows an example in which the deformed wire 10 is installed in the fixing unit 100. One end of the wire 10 is fastened to the through hole 114 and the other end is wound in a ring shape. The part wound in the shape of a ring shortens the length of the wire 10 when the wire is put into the mold for insert injection molding of the fixing unit so that it can enter the mold well and the volume of the product (fixed unit and the final product of the wire) is packed. To reduce. The portion wound in a ring shape can be easily unfolded by an operator during wire installation work.

And, Figure 7 shows another modification of the wire 10. The wire 10 of FIG. 4 is tied after passing through the through hole 114, but the wire 10 of FIG. 7 is fixed to the neighboring strain muscle 1 or the reinforcing muscle 3 after passing through the through hole 114. It is extended until it becomes possible.

8 shows an example in which the fixing unit 100 and the wire 10 are installed in a circular rebar network. As shown in FIG. 8, eight tension muscles 1 and eight reinforcing muscles 3 are alternately installed to form a circle, and the outer side of the tension muscles 1 and reinforcing muscles 3 forming a circle ( 5) It is installed to wrap.

The fixing unit 100 is installed in the tension muscle 1 so that the tension muscle 1 is inserted into the reinforcing bar seat 130. In addition, the wire 10 is wound and fixed by winding one or more neighboring reinforcing muscles 3, and then winding one or more of the reinforcing muscles 3 and another neighboring tense muscles 1 to tense muscles 1 Is fixed on. At this time, when the wire 10 is wound around the reinforcing bar 3 or the tension bar 1, it is preferable to pull and roll to create a tension (tensile). The tension transfers the rebar network into the mold for the production of concrete poles and molds. The degree to prevent movement and separation of the reinforcing bars (1) and (3) is appropriate when the concrete is introduced and rotated at high speed.

The fixing unit 100 may be installed on all the tension muscles 1. In this case, the two reinforcing bars 3 are wound and fixed by two wires 10. In order to prevent interference between the two wires 10, two neighboring fixing units 100 in the longitudinal direction of the electric pole It can be installed at regular intervals.

On the other hand, the fixing unit 100 may be installed by filtering the tension muscles 1 arranged to form a circle one by one. In this case, the fixing unit 100 is installed on the four tension muscles 1, and the fixing unit 100 is not installed on the four tension muscles 1, and the tension unit 1 is installed with the fixing unit 100 installed. The tense muscles 1 in which the fixing unit 100 is not installed are alternately present. And, one reinforcing bar 3 is fixed by one wire (10).

9 shows another example in which the fixing unit 100 and the wire 10 are installed in a circular reinforcing bar network. The fixing unit 100 is installed in the reinforcing bar 3 so that the reinforcing bar 3 is inserted into the reinforcing bar seat 130. Then, the wire 10 is fixed to the tension muscle 1 by winding one or more neighboring tension muscles 1.

And, the fixing unit 100 is installed on all reinforcing bars (3). In this case, two tension wires 1 are wound around and fixed by two wires 10. In order to prevent interference between the two wires 10, two adjacent fixing units 100 are predetermined in the longitudinal direction of the electric pole. It can be installed at intervals.

On the other hand, Figure 10 (a) is a front view showing a fixing unit used in the fixing structure according to the second embodiment of the present invention, Figure 10 (b) is a side view of Figure 10 (a). And, Figure 11 (a) is a front view showing that the fixing unit is divided into two parts injection molding, Figure 11 (b) is a side view of Figure 11 (a).

The fixing unit 200 includes a body, a pair of guide portions 120 formed integrally with the body, and a reinforcing bar seating portion 130. Among the reference numerals in FIGS. 10(a) and 10(b), the same reference numerals in FIGS. 4 to 5 denote components having the same function.

The body is formed in a circular disk shape as a whole, the center 111 has a higher height than the border 112. Specifically, the body includes a central portion 111, a border 112, and a connection portion 113 connecting the central portion 111 and the border 112. Preferably, the fixing unit 200 is composed of a first portion 210 and a second portion 220, the first and second portions 210 and 220 are coupled to the body and a pair of guide portions 120 ) And rebar seating portion 130.

The central portion 111 is a portion formed to surround the rebar seating portion 130, and has a higher height than the border 112.

The border 112 is entirely circular, except for the guide portion 120. In addition, a fastening protrusion 216 and a fastener 217 are formed on the edge 112. The fastening protrusion 216 is formed to protrude on the edge 112 of the second part 220 and the fastener 217 is formed on the edge 112 of the first part 210. The fastening protrusion 216 is inserted into the fastener 217 so that the first and second portions 210 and 220 are coupled. As an alternative to this, a fastening protrusion 216 may be formed in the first portion 210 and a fastener 217 may be formed in the second portion 220.

The through holes 214 are formed to penetrate both sides of the body. 12, the wire 10 is installed to penetrate the through hole 214.

Grooves 219 for forming through holes 214 are formed in the first portion 210 to penetrate both sides of the body. As an alternative to this, the grooves 219 may be formed in the second portion 220 or both of the first and second portions 210 and 220.

The connecting portion 113 is a portion extending in the radial direction from the central portion 111, and connects the rim 112 and the central portion 111. The height of the connection portion 113 increases toward the central portion 111.

In addition, vertical ribs 117 that connect the guide portion 120 and the connection portion 113 in the circumferential direction may be formed on both sides of the guide portion 120. The vertical rib 117 suppresses the deformation of the guide portion 120, and the suppression of this deformation prevents any departure of the reinforcing bars 1 and 3 inserted into the reinforcing bar seating portion 130.

The pair of guide parts 120 are formed to face each other under the body. The pair of guide parts 120 are formed to be inclined toward each other, and this inclined structure allows the reinforcing bars 1 and 3 to be easily inserted into the reinforcing bar seating parts 130. And, the upper end of the guide portion 120 is spaced apart at a predetermined interval, the gap between the guide portion 120 is elastically deformed to the outside (1) (3) can be inserted and once inserted rebar (1) (3) is an interval that can be prevented from being randomly deviated.

The reinforcing bar seating portion 130 is a portion in which the reinforcing bars 1 and 3 inserted through the guide portion 120 are seated, and is preferably formed in a circular shape to be matched with the outer surface of the reinforcing bar 1 and 3.

The fixing unit 200 may be made by injection molding a resin. Specifically, after the first and second portions 210 and 220 are injection molded, the fastening protrusion 216 may be inserted into the fastener 217 to be coupled. In addition, the first part 210 and the second part 220 are connected to each other by a connecting portion 240. Accordingly, after injection molding the first and second portions 210 and 220, the first and second portions 210 and 220 may be rotated around the connecting portion 240 to be combined.

13(a) is a front view showing a modification of the wire 10, and FIG. 13(b) is a side view of FIG. 13(a).

The wire 10 has a straight section and a portion wound in a ring shape. The wound portion may be formed at both ends or one end of the straight section. Since the material and diameter of the wire 10 have been described above, a description thereof will be omitted here. In addition, since the necessity (effect) of the portion wound in the shape of a ring is also described above, description thereof will be omitted here.

The wire 10 may be inserted into the mold when the fixing unit 200 is injection-molded to be integral with the fixing unit 200 by insert injection molding. In this case, the wire 10 may be integrally fixed to the fixing unit 200. On the other hand, as an alternative to this, the fixing unit 200 is completed by injection molding as shown in FIG. 11(a)(b), and then the wire 10 is placed in the groove 219, and then the first and second portions 210 The wire 10 may be installed in the through hole 214 by combining 220.

Meanwhile, FIG. 15 shows an example in which the fixing unit 200 and the wire 10 are installed in a circular rebar network.

15, the fixing unit 200 is installed in the tension muscle 1 so that the tension muscle 1 is inserted into the reinforcing bar seat 130. Then, the wire 10 is fixed by winding one or more of the adjacent reinforcing muscles 3 on one side or more, and then winding or reinforcing the reinforcing muscles 3 and another neighboring tense muscle 1 one or more times. 1).

The fixing unit 200 may be installed on all the tension muscles 1. In this case, two reinforcing bars 3 are wound and fixed by two wires 10. In order to prevent interference between the two wires 10, two adjacent fixing units 200 are spaced at predetermined intervals in the longitudinal direction of the electric pole. Can be installed.

On the other hand, the fixing unit 200 may be installed by filtering the tension muscles 1 arranged to form a circle one by one. In this case, the fixing unit 200 is installed on 4 of the 8 tension muscles 1, and the fixing unit 200 is not installed on the 4 tension muscles 1, and the fixing unit 200 is installed. The installed tension muscle 1 and the tension unit 1 in which the fixing unit 200 is not installed alternately exist. And, one reinforcing bar 3 is fixed by one wire (10).

16 shows another example in which the fixing unit 200 and the wire 10 are installed in a circular reinforcing bar network. As shown in FIG. 16, the fixing unit 200 is installed in the tension muscle 1 so that the tension muscle 1 is inserted into the reinforcing bar seat 130. Then, the wire 10 is fixed to the reinforcing bar 3 by winding the adjacent reinforcing bar 3 with one or more turns.

And, the fixing unit 200 may be installed on all the tension muscles (1). In this case, two reinforcing bars 3 are wound and fixed by two wires 10, and two adjacent fixing units 200 are spaced in the longitudinal direction of the electric pole to prevent interference between the two wires 10. Can be installed as

17 shows another example in which the fixing unit 200 and the wire 10 are installed in a circular reinforcing bar network. 17, the fixing unit 200 is installed in the reinforcing bar 3 so that the reinforcing bar 3 is inserted into the reinforcing bar seat 130. Then, the wire 10 is fixed to the tension muscle 1 by winding one or more neighboring tension muscles 1. And, the fixing unit 200 may be installed on all reinforcing bars (3).

Meanwhile, FIG. 18 shows another example in which the fixing unit 200 and the wire 10 are installed in a circular rebar network. The fixing unit 200 is installed in the reinforcing bar 3 so that the reinforcing bar 3 is inserted into the reinforcing bar seat 130. Then, the wire 10 is fixed by winding one or more of the neighboring tension muscles 1 on one side or more, and then winding one or more of the tension muscles 1 and another neighboring reinforcing muscles 3 on one side or more. 3).

The fixing unit 200 may be installed on all reinforcing bars 3. In this case, each reinforcing bar 3 is fixed by winding two wires 10 and one fixing unit 200 is fixed, in order to prevent interference between the two wires 10 and the fixing unit 200 The three fixing units 200 can be installed at predetermined intervals in the longitudinal direction of the electric pole.

On the other hand, the fixing unit 200 may be installed by filtering the reinforcing bars 3 arranged to form a circle one by one. In this case, the fixing unit 200 is installed on the four reinforcing bars 3 of the eight reinforcing bars 3 and the fixing unit 200 is not installed on the four reinforcing bars 3, and the reinforcing bars on which the fixing units 200 are installed (3) and the reinforcing bar (3) is not installed fixed unit 200 is alternately present. Then, the reinforcing bar 3 is not fixed to the fixing unit 200 is fixed by two wires (10).

1: tension muscle 3: reinforcement muscle
5: helix 7: concrete
9: Centrifugal Prestressed Concrete Jeonju
10: wire 12: wound part of the wire
100, 200: fixed unit
111: center 112: border
113: connecting portion 114, 214: through hole
116: reinforcement rib 117: vertical rib
120: guide portion 130: rebar seating portion
210: first part 216: fastening projection
217: fastener 218, 219: home
220: second part 240: connection part of the first and second parts

Claims (14)

In a structure that is installed in a circular reinforcing bar buried inside the concrete pole, to fix the reinforcing bars of the reinforcing bar and maintain the spacing between the reinforcing bars,
The circular reinforcing bar network includes a spiral bar (5) and a plurality of tension bars (1) and reinforcing bars (3), but the tension bars (1) and reinforcing bars (3) are arranged in a circular shape, and are arranged in a circular shape (1) ) And reinforcement (3) is installed so that the spiral muscle (5),
The structure includes a fixing unit (100) (200) and a wire,
The fixed unit 100, 200,
Body;
A pair of guide parts 120 formed at a lower portion of the body and spaced apart at predetermined intervals; And,
Includes; reinforcement seating portion 130 formed on the inside of the pair of guide portions 120,
The wires are respectively connected to both sides of the body or installed to penetrate the body, and the guide portion 120 is elastically deformed when the tension muscle 1 or the reinforcing muscle 3 is inserted between the pair of guide portions 120. When the insertion is completed, the separation of the tension muscle 1 or the reinforcing muscle 3 located in the reinforcing bar seat 130 is prevented by the guide portion 120 being returned to its original shape,
The wire is fixed to the tension bar (1) or reinforcing bar (3) located on both sides of the fixing unit and fixed, but fixed in a retracted state, characterized in that the wire is fixed in a pulled state to generate tension. According to claim 1,
Fixing unit 100, 200 is installed on the tension bar (1), but is installed so that the tension bar (1) is inserted into the rebar seat 130,
The wires passing through the wires or the body on both sides are fixed by winding the outer circumferential surface of the reinforcing bar 3 to fix the adjacent reinforcing bar 3, and then wound around the reinforcing bar 3 and another tension bar 1 adjacent to it. Reinforcing bar fixing and spacing maintenance structure, characterized in that. According to claim 2,
The fixing units 100 and 200 are arranged by filtering the tension muscles 1 arranged in a circle one by one, but the fixing units 100 and 200 are fixed to the tension muscles 1 in which the fixing units 100 and 200 are not installed. ) Rebar fixing and spacing maintenance structure, characterized in that all the wires are fixed. According to claim 1,
Fixing unit 100, 200 is installed so that the tension bar (1) is inserted into the reinforcing bar seat 130, it is installed in all the tension bar (1),
The wire or the wire passing through the body is fixed to the reinforcement and spacing structure, characterized in that the outer circumferential surface of the reinforcing bar 3 is fixed to fix the adjacent reinforcing bar 3. According to claim 1,
Fixing unit 100, 200 is installed so that the reinforcing bar (3) is inserted into the rebar seating portion 130,
Reinforcing and spacing the reinforcing bar, characterized in that the wires penetrating the body or the wires on both sides are wound around the outer circumferential surface of the neighboring strainer 1 and then wound and fixed by the tensioner 1 and another neighboring reinforcement member 3. Retaining structure. The method of claim 5,
The fixing units 100 and 200 are arranged by filtering the reinforcing bars 3 arranged in a circle one by one, and the fixing units 100 and 200 are provided with reinforcing bars 3 that are not installed on both sides of the fixing units 100 and 200. Reinforcing bar fixing and spacing structure, characterized in that the wires are all fixed. According to claim 1,
Fixing unit 100, 200 is installed so that the reinforcing bar (3) is inserted into the rebar seating portion 130, it is installed in all the reinforcing bar (3),
Reinforcing bars, characterized in that the wires penetrating the wires or the body of both sides are fixed by winding neighboring tension muscles (1), and the wires of both fixing units (100) (200) are fixed to the tension muscles (1). Fixed and spaced structures. According to claim 1,
Fixing unit (100) (200) and the wire is fixed to the reinforcement and spacing structure, characterized in that integrally molded by insert injection molding. The method according to any one of claims 1 to 8,
Fastening holes 114 are formed on both sides of the body through the front and rear surfaces of the body,
Reinforcing bar fixing and spacing structure, characterized in that one end of the wire is installed to penetrate the fastening hole (114). The method of claim 9,
The other end of the wire is wound in a ring shape, the wound part is fixed to the tension bar (1) or reinforcing bar (3), it can be stretched by the operator during work to fix the rebar fixing and spacing structure. The method according to any one of claims 1 to 8,
A through-hole 214 is formed through both sides of the body, and the wire is fixed and spaced between the reinforcing bars, characterized in that installed through the through-hole 214. The method of claim 11,
Both ends of the wire are wound in a ring shape, the wound part is fixed to the tension bar (1) or reinforcing bar (3), it can be stretched by the operator during the work of fixing the rebar fixing and spacing structure. The method according to any one of claims 1 to 8,
The fixing unit 200 is made of the first part 210 and the second part 220, and then the first and second parts 210 and 220 are fastened and made.
Grooves 218 and 219 penetrating both sides of at least one of the first and second portions 210 and 220 are formed, and the grooves 218 when the first and second portions 210 and 220 are fastened (219) forms a through hole 214,
One of the first and second parts 210 and 220 includes a fastening protrusion 216 and the other one includes a fastener 217, and the first and second parts 210 and 220 are to be fastened. When the fastening protrusion 216 is inserted and fastened to the fastener 217, the first and second portions 210 and 220 are coupled to the rebar fixing and spacing maintenance structure. The method according to any one of claims 1 to 8,
The body,
A border 112 formed to form a circle;
Central portion 111; And,
Includes; connecting portion 113 extending in the radial direction to connect the frame 112 and the central portion 111,
On both sides of the guide portion 120, a vertical rib 117 connecting the guide portion 120 and the connection portion 113 is formed in a circumferential direction, and the vertical rib 117 suppresses deformation of the guide portion 120. Features of rebar fixation and spacing maintenance.

Images