JPH08177166A - Reinforcement structure for concrete foundation and manufacture thereof - Google Patents

Abstract

PURPOSE: To enhance the working efficiency at the time of manufacture. CONSTITUTION: In the reinforcement structure 50, a vertical section in a band plate shape where both longitudinal reinforcing bars 17 vertically lined up and vertical reinforcing bars 48 longitudinally lined up are fixed, is disposed on a horizontal section in a band plate shape where both longitudinal reinforcing bars 12 laterally lined up and lateral reinforcing bars 43 longitudinally lined up are fixed. Engaging sections formed in both the vertical reinforcing bars of each positioning means 210 and the vertical reinforcing bars 48 of the vertical section, are engaged with the longitudinal reinforcing bars, and engaging sections formed in both the lateral reinforcing bars of each positioning means 21 and the lateral reinforcing bars 43 of the horizontal section are also engaged with the longitudinal reinforcing bars 12, and they are held in specified positions respectively. A rest stand has its engaging sections formed over the lateral reinforcing bars, and concurrently leg sections are formed underneath both ends of each lateral reinforcing bar, each positioning means is connected so as to be fixed by the fixing section of each vertical reinforcing bar which forms the engaging sections in the rest stand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar structure for a concrete foundation.

[0002]

2. Description of the Related Art A cloth reinforced foundation F made of reinforced concrete has a long structure having an inverted T-shaped longitudinal section. When constructing this reinforced concrete cloth foundation, first, a reinforcing bar structure having a large number of reinforcing bars and a large number of positioning blocks on which the reinforcing bar structure is mounted are respectively manufactured.

The positioning block, as shown in FIG.
Reinforced concrete with specified dimensions.

In the conventional rebar structure, as shown in FIG. 8, a strip plate-shaped vertical portion 16 is arranged on a strip plate-shaped horizontal portion 11,
The lower portion of the vertical portion 16 is connected to the central position of the horizontal portion.

As shown in FIG. 9, the horizontal portion 11 is provided below the two long front-rear reinforcing bars 12 juxtaposed to the left and right, and to both ends of a large number of short left-right reinforcing bars 13 and 15 juxtaposed in the front-rear direction, respectively. We are welding. In addition, as shown in the figure, the vertical portion 16 is provided on one side of three long front-rear reinforcing bars 17 arranged vertically and on the other hand, a large number of short vertical reinforcing bars 18 arranged front-rear.
Both ends and the center are welded.

A large number of positioning blocks 10 and a reinforcing bar structure 1
Nos. 1 and 16 are transported from the factory to the construction site, and a large number of positioning blocks 10 are arranged at predetermined left and right positions and front and rear positions on the bottom surface of the groove excavated at the construction position of the cloth foundation F on the ground. Place the reinforcing bar in the prescribed position above,
The horizontal portion 11 of the reinforcing bar structure is horizontally arranged at a predetermined height from the bottom surface of the groove, and the frame surrounding the reinforcing bar structure and each positioning block 10 is assembled on the groove. Then, after pouring ready-mixed concrete into the formwork and curing and hardening the concrete in the formwork,
Remove the mold and install the cloth foundation.

In this cloth foundation, the positioning block 1
0 determines the concrete covering thickness on the upper side and the lower side of the reinforcing bar structure depending on its height.

However, such a rebar structure 11, 16
In the case of manufacturing, the rebar of the round bar is cut into a predetermined length with a cutting machine, the rebar with a predetermined length is placed at a predetermined position using a ruler, and the predetermined intersection of the rebar is spot welder. Weld with or bind with wire.

In particular, when manufacturing the vertical portion 16, when fixing the vertical reinforcing bar 18 of the linear round bar to the longitudinal reinforcing bar 17 of the linear round bar, one worker attaches the vertical reinforcing bar 18 to the longitudinal reinforcing bar 17. It was necessary to hold it in place, and during that time, another worker had to weld or bind the vertical rebar to the predetermined position of the longitudinal rebar, so it was difficult to make it alone, and two workers were required, There was a problem that it took a lot of time and effort.

In addition, for the positioning block of the reinforcing bar of the concrete foundation as described above, a mold and a fresh concrete are respectively manufactured, the fresh concrete is placed, the concrete in the mold is cured and hardened, and then the mold is removed. Since it is made, it takes a lot of work. Further, since the positioning block is a concrete block, there is a problem in that it is heavy and is not easy to carry and place.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to construct a reinforced concrete foundation in the field of construction or civil engineering. It is to solve problems and problems.

[0012]

[Means for Solving the Problems] The means adopted by the present invention for solving the problems is that the reinforcing bar structure of the concrete foundation according to claim 1 is "a plurality of front-rear direction rebars arranged in parallel to the left and right. In a rebar structure of a concrete foundation in which a plurality of front-rear direction reinforcing bars that are arranged vertically and a vertical part that is fixed front and rear side-by-side vertical reinforcing bars are connected on a horizontal part where a plurality of horizontal reinforcing bars are fixed In the reinforcing bar structure, a positioning device integrally formed in an inverted T shape or an L shape by connecting and fixing a fixing part formed on a lower part of a vertical part of a vertical part to a horizontal part of a horizontal part at a predetermined position. The vertical portion forms an engaging portion with which the longitudinal reinforcing bar engages with the longitudinal reinforcing bar, and the engaging portion of the vertical reinforcing bar engages with the longitudinal reinforcing bar to engage the vertical reinforcing bar. The front and rear direction of the rebar The horizontal portion forms an engaging portion with which the front-rear direction reinforcing bar engages with the left-right direction reinforcing bar, and the left-right direction reinforcing bar engages with the front-rear direction reinforcing bar by engaging the left-right direction reinforcing bar engaging part with the front-rear direction reinforcing bar. The contents are a reinforcing bar structure of a concrete foundation that is characterized by being "held in place".

According to a second aspect of the present invention, the reinforcing bar structure of the concrete foundation is as follows: "The reinforcing bar structure prevents the fall and supports the horizontal part horizontally at a predetermined height. A reinforcing bar structure of a concrete foundation according to claim 1, characterized in that it is configured to include a positioning device in which legs are hung vertically on both sides.

According to a third aspect of the present invention, there is provided a reinforcing bar structure for a concrete foundation, wherein: "the reinforcing bar structure has a plurality of engaging portions to which front and rear direction reinforcing bars of a lower side of the reinforcing bar structure engage, and left and right sides of a horizontal direction horizontal reinforcing bar. A mounting table having a vertically extending leg portion is arranged at a predetermined position, and each engaging portion formed on the mounting table is engaged with a lower longitudinal reinforcing bar of the reinforcing bar structure. The concrete reinforcing bar structure according to any one of claims 1 and 2, characterized in that it supports it and prevents it from falling and horizontally supporting the horizontal portion at a predetermined height. And

The concrete rebar structure of claim 4 is characterized in that "the engaging portion on the horizontal rebar of the horizontal portion of the positioning device is a U-shaped bent portion". The reinforcing bar structure of the concrete foundation according to any one of claims 3 to 5, wherein the reinforcing bar structure of the concrete foundation according to claim 5 is: "The engaging portions formed at both ends of the horizontal reinforcing bar of the horizontal portion of the positioning device are L-shaped or V-shaped. The content is the reinforcing bar structure of the concrete foundation according to any one of claims 1 to 4, which is characterized in that it is a "shaped bent portion".

[0016] The concrete reinforcing bar structure of claim 6 is characterized in that "the engaging portion formed on the horizontal reinforcing bar of the gantry is a U-shaped bent portion". The reinforcing structure of the concrete foundation according to any one of claims 5 to 5, wherein the reinforcing structure of the concrete foundation according to claim 7 is: "The engaging portions formed on both ends of the reinforcing bar in the left-right direction are L
The reinforcing bar structure of the concrete foundation according to any one of claims 3 to 6, which is a character-shaped or V-shaped bent portion.

The concrete rebar structure according to claim 8 is characterized in that "the engaging portion on the vertical rebar of the vertical portion of the positioning device is a lateral U-shaped bent portion". The reinforcing structure of the concrete foundation according to any one of claims 7 to 7, wherein the positioning device according to claim 9 is "where the fixing portion provided in the vertical reinforcing bar of the vertical portion of the positioning device is bent into an L-shape". The reinforcing bar structure of the concrete foundation according to any one of claims 1 to 8 having a characteristic is the content thereof.

Next, the positioning device of claim 10 is
"An engaging part for inserting the front-rear reinforcing bar into the left-right reinforcing bar is formed, the engaging part is engaged with the front-rear reinforcing bar, and the left-right reinforcing bar held at a predetermined position of the front-rear reinforcing bar is attached to the lower part of the vertical reinforcing bar. The fixing device formed in 1. is connected and fixed, and is integrally formed in an inverted T shape or an L shape as a whole. ”The positioning device according to claim 1, characterized in that.

The positioning device according to the eleventh aspect of the present invention is that "leg portions are vertically provided on both left and right sides of the left-right direction reinforcing bar to prevent the legs from falling down and to horizontally support the horizontal portion at a predetermined height." The positioning device according to claim 2 is characterized in that.

The positioning device according to claim 12 is characterized in that "the engaging portion on the horizontal reinforcing bar is a U-shaped bent portion". 13. The apparatus according to claim 13, wherein the positioning device according to claim 13 is characterized in that "the engaging portions formed at both ends of the left and right direction reinforcing bars are L-shaped or V-shaped bent portions". The positioning device described in (1) is used as the content of each.

The positioning device according to claim 14 is characterized in that "the engaging portion on the vertical reinforcing bar is a bent portion having a horizontal U-shape". The positioning device according to claim 15 is characterized in that "the fixing portion provided on the vertical reinforcing bar is bent into an L-shape". , And its contents.

Next, in the mounting table according to claim 16, "a plurality of engaging portions with which the lower longitudinal reinforcing bars of the reinforcing bar structure are engaged and a leg portion for horizontally supporting the horizontal portion at a predetermined height are provided. A mounting table having, wherein an engaging portion formed on the mounting table is engaged with a front-rear direction reinforcing bar on a lower side of a reinforcing bar structure to mount the front-rear direction reinforcing bar, thereby preventing the fall and preventing the horizontal portion from falling. The mounting base according to claim 3, which is characterized in that it is horizontally supported at a predetermined height.

According to a sixteenth aspect of the present invention, there is provided a mounting table having "a plurality of engaging portions with which the lower longitudinal reinforcing bars of the reinforcing bar structure are engaged, and leg portions for horizontally supporting the horizontal portion at a predetermined height. The engaging portion formed on the mounting table is engaged with the front-rear direction reinforcing bar on the lower side of the reinforcing bar structure to mount the front-rear direction reinforcing bar, thereby preventing the fall and preventing the horizontal portion from rising to a predetermined height. The mounting table according to claim 3, which is characterized in that "it is supported horizontally".

The mounting table according to claim 17 is characterized in that "the engaging portion that engages with the longitudinal reinforcing bars on the lateral reinforcing bars is a U-shaped bent portion". In the mounting table according to claim 18, the reinforcing bars are "the engaging portions formed at both ends of the horizontal reinforcing bars are L-shaped or V-shaped bent portions".
The mounting table according to any one of claims 16 and 17 having a characteristic is provided as the content thereof. Claim 1
17. The mounting table according to claim 16, characterized in that the mounting table of No. 6 is characterized in that "the engaging portion that engages with the longitudinal reinforcing bars on the horizontal reinforcing bars is a U-shaped bent portion". The platform of
16. The feature of "the engaging portions formed at both ends of the horizontal reinforcing bars are L-shaped or V-shaped bent portions".
Alternatively, the mounting table according to any one of claims 16 is set as the content thereof.

Next, the method for manufacturing a reinforcing bar structure of concrete foundation according to claim 19 is, "On a horizontal portion fixed with a plurality of front-rear direction rebars arranged side by side and a plurality of left-right direction rebars arranged in front and back. In the method for manufacturing a concrete-reinforced concrete reinforcing bar structure in which vertical parts, in which a plurality of front-rear reinforcing bars arranged in parallel to each other and a plurality of vertical reinforcing bars arranged in front and back are fixed, are connected to each other, at least three pieces are provided at both ends of the center and left and right. The left and right reinforcing bars that form the engaging portion, the engaging portion that engages the left and right reinforcing bars, and the fixing portion that is formed on the lower side for connecting and fixing to the left and right reinforcing bars, and the horizontal portion at a predetermined height. A positioning device including a horizontally supporting leg and integrally formed in an inverted T shape or an L shape as a whole is arranged at a predetermined position on the floor, and a long front-rear reinforcing bar is inserted into each engaging portion, Phase between front and rear reinforcing bars Position comprising the step of fixing the "manufacturing method of the rebar structure concrete foundation characterized by a processing, and its contents.

A method of manufacturing a reinforcing bar structure for concrete foundation according to claim 20 is, "A manufacturing method for manufacturing the reinforcing bar structure, comprising: a plurality of engaging portions with which lower longitudinal reinforcing bars of the reinforcing bar structure are engaged; A mounting table configured to include a leg portion that horizontally supports a horizontal portion at a predetermined height is arranged at a predetermined position on the floor, and a long front-rear direction reinforcing bar is inserted into each engaging portion, and the front-rear direction reinforcing bars are connected to each other. A method of manufacturing a reinforcing bar structure of a concrete foundation having the feature "including the step of fixing the relative position".

[0027]

The rebar structure of the concrete foundation of the present invention thus constructed operates as follows.

First, the reinforced concrete structure of the concrete foundation of the present invention is manufactured by bending a bendable bar material such as a steel bar or an iron wire. The structure is made by bending the bar, so it is light.

In the reinforcing structure of the concrete foundation according to claim 1, first, the fixing portion formed below the vertical reinforcing bar of the vertical part of the reinforcing structure is connected and fixed to the horizontal reinforcing bar of the horizontal part of the reinforcing structure. Since it is configured to include a positioning device integrally formed in an inverted T shape or an L shape as a whole, when manufacturing the vertical portion, the front-rear direction reinforcing bar is inserted into the engaging portion formed in the vertical direction reinforcing bar. It can be held in place.

Further, when manufacturing the horizontal portion, the front-rear reinforcing bars can be inserted into the engaging portions formed in the left-right reinforcing bars and can be held accurately and reliably at a predetermined position. Since it can be fixed, it can be used as a setup to determine the position of the reinforcing bar structure at the foundation construction site, and the reinforcing bar can be assembled by one person.

Further, the positioning structure is integrally formed by connecting and fixing a fixing portion formed below a vertical reinforcing bar having a plurality of engaging portions to a horizontal reinforcing bar having a plurality of engaging portions. Therefore, it can be mass-produced at the factory and the cost can be reduced.

In the reinforcing bar structure of the concrete foundation according to claim 2, since the leg portions are provided on both sides of the horizontal reinforcing bar provided in the positioning device according to claim 1, the concrete foundation according to claim 1 In addition to the action of the reinforcing bar structure, the horizontal part of the reinforcing bar structure can be horizontally arranged at a predetermined height from the bottom surface of the groove, and this can be accurately supported horizontally from the bottom surface of the groove at a predetermined height. .

Further, when the reinforcing bar structure is assembled, it is possible to prevent the reinforcing bar structure from falling.

According to another aspect of the reinforcing bar structure of concrete foundation of the present invention, a plurality of engaging parts with which the front-rear direction reinforcing bars on the lower side of the reinforcing bar structure engage, and legs for horizontally supporting the horizontal part at a predetermined height. The reinforced structure of the concrete foundation according to claim 2, wherein the mounting base in the left-right direction is formed by attaching the engaging portion formed on the mounting base to the lower front-rear direction reinforcing bar of the reinforcing bar structure. Similarly, the horizontal portion of the reinforcing bar structure can be horizontally arranged at a predetermined height from the bottom surface of the groove, and this can be accurately supported horizontally at a predetermined height from the bottom surface of the groove,

Further, when the reinforcing bar structure is assembled, the reinforcing bar structure can be prevented from falling.

In the reinforcing structure of the concrete foundation according to claim 4, a U-shaped engaging part is formed on the horizontal reinforcing bar in the horizontal direction, and the reinforcing structure of the concrete foundation according to claim 5. In that case, an engaging portion bent into an L-shape or a V-shape is formed on both left and right sides of the horizontal reinforcing bar in the horizontal portion, and a U-shaped engaging portion is formed on the horizontal reinforcing bar. Therefore, the front-rear direction reinforcing bar can be accurately and surely held at a predetermined position, and the relative position of the reinforcing bar structure can be fixed.

Further, as in the case of the concrete reinforcing bar structure according to the third aspect, the horizontal portion of the reinforcing bar structure can be horizontally arranged at a predetermined height from the bottom surface of the groove, and this can be arranged at a predetermined height from the bottom surface of the groove. Can be accurately supported horizontally,

Further, when the reinforcing bar structure is assembled, the reinforcing bar structure can be prevented from falling.

In the reinforcing structure of the concrete foundation according to claim 6, a plurality of engaging portions formed by bending in a U shape are formed on the mounting table in the left-right direction, and according to claim 7, In the rebar structure of the concrete foundation, the L-shaped or V-shaped engaging portion formed at both ends of the mounting table in the left-right direction and the engaging portion formed by bending the center into a U-shape are formed. Therefore, in addition to the action of the reinforcing structure of the concrete foundation according to the fourth or fifth aspect, it is possible to accurately and reliably hold the front-rear direction reinforcing bar on the lower side of the reinforcing structure at a predetermined position.

Further, the horizontal portion of the reinforcing bar structure can be horizontally arranged at a predetermined height from the bottom surface of the groove, and this can be accurately supported horizontally at a predetermined height from the bottom surface of the groove.

In the reinforcing bar structure of the concrete foundation according to claim 8, since a plurality of lateral U-shaped engaging portions are formed in the vertical reinforcing bar of the vertical portion, the vertical reinforcing bar of the vertical portion is surely secured. Can be held at.

In the reinforcing structure of the concrete foundation according to claim 9, in addition to the action of the reinforcing structure of the concrete foundation according to claim 8, the fixing part formed at the lower end of the vertical reinforcing bar of the vertical part is L-shaped. As it is bent into a shape,
It is possible to place the engaging part that engages the longitudinal reinforcing bar of the vertical part directly above the engaging part that engages the longitudinal reinforcing bar formed on the horizontal reinforcing bar of the horizontal part. In addition, it can be securely held, and the relative position of the reinforcing bar structure can be fixed.

In any of the reinforcing structure of concrete foundation according to any one of claims 1 to 9 above, in each case, the reinforcing bar of the round bar is cut into a predetermined length by a cutting machine at a construction site, and a predetermined length is obtained. Since it is not necessary to place the steel rebar at a predetermined position using a ruler and weld a predetermined intersection of the rebar with a spot welder or bind it with a wire, the rebar structure of the concrete foundation can be used even by one person. Can be assembled.

Next, the positioning device of the present invention is manufactured by bending a bendable rod material such as a steel rod or an iron wire. In addition, the structure is made by bending the bar, so it is light.

According to a tenth aspect of the present invention, in the vertical direction in which the engaging portion for engaging the longitudinal reinforcing bars is formed on the lateral reinforcing bar for engaging the longitudinal reinforcing bars. Since the fixing portion formed at the lower part of the reinforcing bar is integrally fixed in a reverse T shape or L shape by connecting and fixing, the front and rear direction reinforcing bars are engaged with the respective engaging parts to form the left and right direction reinforcing bars and the upper and lower direction. It is possible to provide a positioning device capable of accurately and reliably holding the directional reinforcing bars at predetermined positions of the front-rear directional reinforcing bars.

Also, this positioning device can be used as a setup for accurately and reliably determining the position of the reinforcing bar structure at the foundation construction site, and the relative position of the reinforcing bar structure can be fixed.

Furthermore, this positioning device can be mass-produced in the factory.

In the positioning device according to the eleventh aspect, since the leg portions are formed on both left and right sides of the horizontal reinforcing bar, in addition to the operation of the positioning device according to the tenth aspect,
It is possible to provide a positioning device capable of horizontally supporting the horizontal portion at a predetermined height and preventing the horizontal portion from falling over.

According to a twelfth aspect of the positioning device, a plurality of engaging portions formed by bending in a U-shape are formed on the horizontal reinforcing bar, and the positioning device according to the thirteenth aspect is provided. Since the left and right rebars have engaging portions formed by bending both ends in an L shape or a V shape,
Similarly to the positioning device described in 1, the front-rear direction reinforcing bar on the lower side of the reinforcing bar structure can be accurately and reliably held at a predetermined position, and the relative position of the reinforcing bar structure can be fixed.

In the positioning device of the fourteenth aspect, since the engaging portion bent in the horizontal U-shape is formed on the vertical reinforcing bar, the vertical reinforcing bar of the vertical portion is accurately and securely placed at a predetermined position. It is possible to provide a positioning device that can be held at a fixed position and that can fix the relative position of the reinforcing bar structure.

In the positioning device of the fifteenth aspect, since the fixing portion formed on the vertical reinforcing bar is bent into an L-shape, the front-rear reinforcing bar formed on the horizontal reinforcing bar of the horizontal portion is formed. The front-rear direction reinforcing bars of the vertical portion can be accurately and reliably arranged and held immediately above the engaging portions to be engaged, and the relative position of the front-rear direction reinforcing bars of the vertical portion can be fixed.

Next, the mounting table of the present invention is manufactured by bending a bendable rod material such as a steel rod or an iron wire. In addition, the structure is made by bending the bar, so it is light.

According to a sixteenth aspect of the present invention, there are provided a plurality of engaging portions for engaging the front-rear direction reinforcing bars on the lower side of the reinforcing bar structure, and leg portions for supporting the horizontal portion horizontally at a predetermined height. Since the front and rear direction reinforcing bars on the lower side of the reinforcing bar structure are inserted and fixed to the engaging parts, respectively, it is possible to prevent the reinforcing bar structure from tipping over, and to keep it horizontal at a predetermined height. It is possible to provide a mounting table that can be reliably supported by the mounting table.

In the mounting table according to claim 17, a plurality of engaging portions formed by bending in a U-shape are formed on the left and right reinforcing bars, and in the mounting table according to claim 18, Since both ends of the left-right direction reinforcing bar are bent to form L-shaped or V-shaped engaging portions, in addition to the action of the mounting table according to claim 16, the front-rear direction reinforcing bar below the reinforcing bar structure is formed. Can be accurately and reliably held at a predetermined position, and the relative position of the reinforcing bar structure can be fixed.

Next, in the method for manufacturing a reinforcing bar structure of concrete foundation according to claim 19, a horizontal reinforcing bar having engaging portions formed at the center and left and right ends, and an engaging for engaging the horizontal reinforcing bar. Part and a fixing part formed on the lower side for connecting and fixing to the horizontal reinforcing bar, and a leg part that horizontally supports the horizontal part at a predetermined height, and has an inverted T shape or an L shape as a whole. The integrally formed positioning device is disposed at a predetermined position on the floor, and then long front-rear reinforcing bars are inserted into the respective engaging parts, and the relative position of the front-rear reinforcing bars is fixed. When manufacturing, the front-rear reinforcing bars are inserted into the engaging parts formed in the left-right reinforcing bars, can be held accurately and reliably at predetermined positions, and the relative position of the reinforcing bar structure can be fixed. The position of the rebar structure at the construction site It can also be used as Mel setup.

Further, when manufacturing the vertical portion, the front-rear reinforcing bars can be inserted into the engaging portions formed in the vertical reinforcing bars and held at predetermined positions.

Further, the horizontal portion of the reinforcing bar structure can be horizontally arranged at a predetermined height from the bottom surface of the groove, and when assembling the reinforcing bar structure, it must be accurately supported horizontally at the predetermined height from the bottom surface of the groove. In addition, it is possible to prevent falling due to loss of balance, so that the rebar structure can be assembled by one person.

According to a twentieth aspect of the present invention, there is provided a method for manufacturing a concrete foundation reinforcing bar structure, in which a plurality of engaging portions with which the front and rear direction reinforcing bars on the lower side of the reinforcing bar structure engage and the horizontal portion are horizontally supported at a predetermined height. A mounting table including a leg portion to be arranged is arranged at a predetermined position on the floor, and a long front-rear direction reinforcing bar is inserted into each engaging portion, and a step of fixing the relative position of the front-rear direction reinforcing bars is included. The same operation as in the method for manufacturing a reinforcing bar structure of concrete foundation according to claim 19 is performed.

[0059]

EXAMPLES The present invention will be described in more detail based on the following examples, which are representative ones.
The present invention is not limited to the following examples as long as the gist thereof is not exceeded.

The reinforced structure of the present invention is a reinforced structure used in the fields of construction and civil engineering, such as reinforced concrete cloth foundations, reinforced concrete fences and reinforced concrete earth retaining walls, and small domestic drainage channels constructed on site.

Hereinafter, the reinforced concrete cloth foundation will be taken as an example to describe in detail with reference to the drawings.

First, the horizontal reinforcing bars (mounting bases) which are a part of the horizontal portion of the reinforcing bar structure shown in FIG. 1 are manufactured by bending a round bar of steel.

The mounting table 110 shown in FIG. 1 (a) has three U-shaped engaging portions 114 bent in a semi-circular shape formed at the center and at both the left and right ends of the left and right reinforcing bars 112. Reverse T
The leg portion 113 having a character shape is welded and fixed, and the mounting table 120 shown in FIG. 1B has engaging portions 114 bent in an L shape at both left and right ends and formed at both left and right ends. An inverted T-shaped leg portion 113 is welded and fixed to both ends of a lateral reinforcing bar 122 formed in a central portion of a U-shaped engaging portion 114 that is bent in a semicircular shape, as shown in FIG. In the mounting base 130 shown, the engaging portions 134 bent in a V-shape are formed at both left and right ends, and the U-shaped engaging portion 114 bent in a semi-arcuate shape is formed at a central portion thereof. Inverted T-shaped legs 113 are welded and fixed to both ends of the left and right reinforcing bars 132 formed in FIG. 1, and the mounting base 140 shown in FIG. 1D has a U-shape bent in a semi-circular shape at the center. A U-shaped portion is formed by forming the engaging portion 114 in a shape and bending it into a semi-circular shape at both left and right ends. Engaging portion 144 Yes formed, and,
The left and right ends are further bent downward, and the front and rear direction reinforcing bars 145 are welded and fixed to the tips of the legs 143.

These mounts 110, 120, 130,
Left and right rebars 112, 122, 132 provided for 140,
In any of the cases, the 142 can engage and hold long front-rear reinforcing bars in the respective engaging portions.

Further, the mounts 110, 120, 130,
Left and right rebars 112, 122, 132 provided for 140,
Since the leg portions 113 and 143 are attached to both left and right sides of the 142, it is possible to prevent the fall and to horizontally support the horizontal portion at a predetermined height.

The number, shape, or forming position of the engaging portions 114, 124, 134, 144 formed on the horizontal reinforcing bars 112, 122, 132, 142 provided on the mounting tables 110, 120, 130, 140 are changed as appropriate. This is possible, for example, the left-right direction reinforcing bars 112 and 12 provided on the mounting table.
It is also possible to weld and fix the upper portions of the inverted T-shaped legs to the upper and lower ends of the left and right sides of the second, 132, and 142 so as to project slightly upward, thereby forming the engaging portions.

Next, the vertical rebar 28, which is a part of the vertical portion 16 of the reinforcing bar structure, is manufactured by bending a round bar of steel. On the right side, a plurality of engaging portions 24 that are bent in a horizontal U shape are formed.

The upper and lower ends of the vertical reinforcing bar 28 or both of them may be bent into a hook shape to form an engaging portion.

The respective engaging portions 24 formed on the vertical reinforcing bars 28 are capable of engaging and holding long longitudinal reinforcing bars 17 arranged in the vertical direction.

Engaging portion 2 formed on the vertical reinforcing bar 28
The number, shape or position of four, the overall shape, etc. can be changed as appropriate. For example, some of the engaging portions on the vertical reinforcing bar 28 should be appropriate marks, and the wires should be bound at this position. May be.

It is also possible to use the vertical reinforcing bars 28 in the horizontal direction. In this case, since the vertical reinforcing bars 28 also act as horizontal reinforcing bars, they are formed on the vertical reinforcing bars (horizontal reinforcing bars). Each engaging portion can mount and support the front-rear direction rebar 12 engaged with the left-right direction rebar.

Next, typical positioning devices 210, 220, 230, 2 used when assembling a reinforcing bar structure.
As shown in Drawing 2 (a)-(d), 40 is a horizontal rebar 112,122,132,142 of the above-mentioned stand 110,120,134,140 substantially, and the vertical rebar 28 is shown. The lower part is loosely bent into an L-shape and fixed to the fixing portion 29.
Is formed, and the fixing portions are connected and fixed to be integrally formed in an inverted T shape or an L shape as a whole.

Therefore, these positioning devices 210, 2
20, 230, 240 are all the mounts 110,
It is possible to achieve both the working effects of 120, 134, 140 and the working effects of the vertical reinforcing bars 113, 123, 133, 143.

Positioning devices 210, 220, 230, 2
40, the horizontal reinforcing bars 212, 222, 232,
242 or the number, shape, or position of engaging portions formed on the vertical reinforcing bars (positioning bars), the number, shape, or position of the vertical reinforcing bars fixed on the horizontal reinforcing bars (mounting table) of the horizontal portion, or the entire positioning device. The shape and the like are all appropriately determined, and the design can be changed.

Next, the reinforcing bar structure of the present invention will be described. The reinforcing bar structure of the present invention is a long structure having an inverted T-shaped cross section, and is arranged in parallel in the front-rear direction on a plurality of front-rear direction rebars arranged side by side. A plurality of front-rear direction rebars that are arranged in parallel vertically are arranged on a strip-plate-shaped horizontal portion 11 in which the respective engaging portions formed on the plurality of left-right rebars that are connected are fixed together. A strip-shaped vertical portion 16 is provided in which the engaging portions formed by reinforcing bars are connected and fixed.

As shown in FIG. 3, when the reinforcing bar structure 30 of Example 1 is assembled, the reinforcing bar structure 30 shown in FIG.
The mounting base 110 described above and the horizontal U-shape on the horizontal reinforcing bar 23 which is a part of the horizontal portion formed by the three U-shaped engaging portions 24 bent in a semi-circular shape at the center and the left and right ends. The engaging portions 24 that are bent in a shape are formed in the center and the upper portion, respectively, and the fixing portions 29 are formed below the vertical reinforcing bars (positioning rods) 25 that are bent in an L shape below the engaging portions 24. Rebar 2
The fixing portion 29 is joined and fixed to a position adjacent to the engaging portion 24 formed at the center of 52 to form an inverted T shape or L as a whole.
Positioning was performed with the positioning device 250 formed integrally in the shape of a letter.

The vertical portion 16 engages a plurality of vertical reinforcing bars 28 arranged in the front-rear direction and a plurality of front-rear reinforcing bars 17 arranged in the vertical direction with the engaging portions 24 formed on the vertical reinforcing bars 258. The direction rebars 28 and 258 are accurately held at predetermined positions on the front-rear direction rebar 17.

Further, the horizontal portion 11 includes a plurality of front-rear directions in which the engaging portions 114 formed on the left and right reinforcing bars 112 of the plurality of mounting tables 110 arranged front and rear and the left and right reinforcing bars 252 of the positioning device 250 are arranged side by side. Engage the rebar 12,
The left and right reinforcing bars 112 and 252 are accurately held at predetermined positions on the front and rear reinforcing bars 12.

When assembling the reinforcing bar structure 40 of this example, first, in order to manufacture the horizontal portion 11 of the reinforcing bar structure 40, FIG.
The three mounting bases 110 described in (a) are arranged in parallel in the front-rear direction at a predetermined interval on the floor, and the U-shaped engaging portions 114 formed on the left-right reinforcing bars 112 each have long front-rear reinforcing bars 1.
2 is inserted, and the front-rear direction rebars 12 are horizontally arranged apart from the floor by arranging the left-right direction rebars 12 therebetween, and the relative positions of the front-rear direction rebars 12 are fixed.

Next, as shown in FIG. 3, positioning devices 250 are arranged at predetermined intervals on both sides of the three mounts 110, and the engaging portions formed on the horizontal reinforcing bars 252 of the positioning devices 250 are arranged in the front-back direction. The rebar 12 is inserted and fixed.

The front-rear direction reinforcing bar 1 engaged with the engaging portions 114, 24 formed on the left-right direction reinforcing bars 112, 252, respectively.
2 is preferably welded and fixed.

Next, in order to manufacture the vertical portion 16 of the reinforcing bar structure 40, the long front-rear reinforcing bars 17 are inserted into the engaging portions 24 formed at the center and the upper part of the vertical reinforcing bars (positioning rods) 258 of the positioning device 250. And fix them.

Next, the positioning device 250 and the mounting table 11
Between 0 and 0, the positioning device 250 vertical rebar 258
The short vertical rebars 28 each having the engaging portion 24 formed therein are arranged at positions corresponding to the front-rear reinforcing bars 17 provided in each of the above, and the front-rear reinforcing bars 17 are inserted into and fixed to the respective engaging portions 24. It is preferable to fix it by welding.

Horizontal reinforcing bars 252 of the positioning device 250
It is preferable that the short vertical reinforcing bars 28 arranged between the horizontal reinforcing bars 112 of the mounting table 110 and the mounting table 110 are arranged so that the lateral U-shaped orientations of the engaging portions 24 are staggered.

In the case of assembling the reinforcing bar structure 40, the reinforcing bar structure 40 of Example 2 has the positioning device 2 described in Example 1.
The same shape as 50 was used.

When assembling the reinforcing bar structure 40 of this example, first, as shown in FIG. 4, the positioning device 250 is placed on the blocks 10 arranged in parallel in the front and rear on the floor at predetermined intervals, and the positioning device 250 The long front-rear reinforcing bars 12 are inserted into the respective engaging portions 114 formed on the left-right reinforcing bars 252, and the front-rear reinforcing bars 12 are horizontally arranged apart from the floor by determining their left-right intervals. Fix the relative position.

Next, as shown in FIG. 4, a horizontal reinforcing bar 33 having three U-shaped engaging portions 24 is arranged between the horizontal reinforcing bars 252 of the positioning device 250, and the engaging portions are formed. The front-rear direction reinforcing bar 12 is inserted into 24 and fixed.

The front-rear reinforcing bars 12 engaged with the engaging portions 24 formed on the left-right reinforcing bars 12 are preferably welded and fixed.

Next, in order to manufacture the vertical portion 16 of the reinforcing bar structure 40, the long front-rear reinforcing bars 17 are inserted into the engaging portions 114 formed at the center and the upper part of the vertical reinforcing bars (positioning rods) 258 of the positioning device 252. And fix them.

Next, short vertical rebars 38 having engaging portions 24 formed at positions corresponding to the front-rear reinforcing bars 17 are arranged between the left and right reinforcing bars 33 and 252, and the respective engaging portions 24 are respectively arranged. It is inserted through the longitudinal reinforcing bars 17 and fixed.

The short vertical rebars 38 arranged between the left and right rebars 33, 252 are preferably arranged so that the engaging portions 24 formed in the lateral U-shape are staggered.

Reinforcing bar structure 5 of concrete foundation of Example 3
0 is assembled using the positioning device 210 shown in FIG. 2A as shown in FIG.

When assembling the reinforcing bar structure 50 of this example, first, the positioning device 2 is used to manufacture the horizontal portion of the reinforcing bar structure.
10 are arranged side by side at a predetermined interval in the form of a floor, and long longitudinal reinforcing bars 12 are respectively inserted into U-shaped engaging portions 114 formed on the lateral reinforcing bars 212 of the positioning device 210, and the longitudinal reinforcing bars 12 are The distance in the left-right direction is determined, and the relative position of the front-rear reinforcing bars 12 is fixed.

Next, three short left-right direction reinforcing bars 43 having the engaging portions 24 for inserting the front-rear direction reinforcing bars 12 are formed.
The longitudinal reinforcing bars 12 are alternately arranged on the lower side and the upper side of the longitudinal reinforcing bars 12, and the longitudinal reinforcing bars 12 are inserted into and fixed to the respective engaging portions 24.

In each engaging portion 24, the front-rear direction reinforcing bar 12
It is preferable to weld and fix after inserting.

Next, the vertical portion 16 is formed and manufactured by the same procedure as described above.

Others are the same as in the previous example.

As shown in FIG. 6, the reinforcing bar structure 60 of the fourth embodiment has the positioning devices 210 shown in FIG. The long front-rear reinforcing bars 12 are inserted into the U-shaped engaging portions 114 formed in the 212, respectively.
The distance between 2 in the left-right direction is determined, and the relative position of the front-rear reinforcing bars 12 is fixed.

The procedure was the same as that of Example 3 except for the procedure of providing short horizontal rebars and vertical rebars.

Others are the same as in the previous example.

As shown in FIG. 7, the positioning device 1260 used when assembling the reinforcing bar structure of the fifth embodiment forms a plurality of U-shaped engaging portions bent in a semi-arcuate shape and at the left and right sides thereof. At the left and right ends of the left-right reinforcing bar with legs attached at both ends, lateral U-shaped bent engaging parts are formed in the center and upper part, respectively, and rightward under the engaging part formed in the center. The fixing portions of the vertical reinforcing bars (positioning rods) that are loosely bent into an L shape are welded and fixed, and integrally formed.

A positioning device provided with legs for horizontally supporting the horizontal portion at a predetermined height is arranged side by side in the front-rear direction, and is manufactured by the same procedure as that of the third embodiment. For example, a U-shaped side groove. It is used when performing on-site construction.

Others are the same as in the previous example.

[0104]

EFFECTS OF THE INVENTION Since the reinforcing bar structure of the present invention is manufactured by bending a bar material, it does not require much labor for manufacturing as compared with a conventional concrete block.

When assembling the reinforcing bar structure of the present invention, the reinforcing bar of a round bar is cut into a predetermined length by a cutting machine at a construction site, and the reinforcing bar of a predetermined length is arranged at a predetermined position using a ruler.
Since it is not necessary to weld a predetermined intersection of the reinforcing bars with a spot welder or to bind the reinforcing bars with a wire, even one person can assemble the concrete reinforcing bar structure.

When assembling the reinforcing bar structure of the present invention, when manufacturing the horizontal portion, the front-rear reinforcing bars can be inserted into the engaging portions formed in the left-right reinforcing bars and held accurately and reliably at predetermined positions. Since it can be fixed and the relative position of the reinforcing bar structure can be fixed, it can also be used as a setup to determine the position of the reinforcing bar structure at the foundation construction site, reducing the labor of assembling the reinforcing bar, and also placing the reinforcing bar in place. It does not require a worker to hold it, so it does not take much time.

When manufacturing the vertical portion, the engaging portion of the vertical reinforcing bar is engaged with the longitudinal reinforcing bar to hold the vertical reinforcing bar at a predetermined position of the longitudinal reinforcing bar, and the retained vertical reinforcing bar is held. This has the effect of fixing the fixed portion at a predetermined position of the longitudinal reinforcing bar by welding, binding, or the like.

Further, in the reinforcing bar structure of the present invention, when manufacturing the horizontal portion and the vertical portion, the horizontal reinforcing bars and the vertical reinforcing bars are held at predetermined positions of the front and rear reinforcing bars by the engaging portions formed on the horizontal reinforcing bars and the vertical reinforcing bars. It eliminates the need for an operator to hold the directional reinforcing bars and the vertical reinforcing bars at the predetermined positions of the longitudinal reinforcing bars, and saves much labor.

Further, in the reinforcing bar structure of the present invention, the positioning device and / or the mounting table are provided with the leg portions for horizontally holding the horizontal portion. Is unnecessary. Then, it is possible to reliably support the horizontal portion of the reinforcing bar structure horizontally at a predetermined height and to prevent the reinforcing bar structure from falling over, which is an excellent effect.

Next, since the positioning device of the present invention has a structure in which the bar material is bent, it can be manufactured at the factory and is lighter than conventional concrete blocks, and is easy to transport, store, or arrange. Is. Since the vertical portion of the reinforcing bar structure is manufactured horizontally, it is easy to manufacture.

Further, the labor of assembling the reinforcing bar and the labor of determining the position of the reinforcing bar structure at the foundation construction site can be reduced, and the horizontal portion of the reinforcing bar structure can be reliably supported horizontally at a predetermined height.

Next, since the mounting table of the present invention has a structure in which a bar is bent, it can be manufactured in a factory and is lighter than a conventional concrete block, and is easy to transport, store, or arrange. Is. Since the vertical portion of the reinforcing bar structure is manufactured horizontally, it is easy to manufacture.

Further, the labor for assembling the reinforcing bar and the labor for determining the position of the reinforcing bar structure at the foundation construction site can be reduced, and the horizontal portion of the reinforcing bar structure can be supported horizontally at a predetermined height.

In the method for manufacturing a concrete reinforcing bar structure of the present invention, when manufacturing the horizontal part, the front-rear reinforcing bars are inserted into the engaging parts formed in the left-right reinforcing bars to ensure accurate and reliable positioning at predetermined positions. It can be held, the relative position of the reinforcing bar structure can be fixed, and it can be used as a setup to determine the position of the reinforcing bar structure at the foundation construction site,
In addition, when manufacturing the vertical part, the front-rear reinforcing bars can be inserted into the engaging parts formed in the vertical reinforcing bars and held in place, so compared to conventional concrete blocks, it is much easier to manufacture. It doesn't take much time.

Further, when assembling the rebar structure, the rebar of the round bar is cut into a predetermined length with a cutting machine at the construction site, and the rebar with a predetermined length is placed at a predetermined position using a ruler. Since it is not necessary to weld at a predetermined intersection with a spot welder or to bind it with a wire, it does not require much manufacturing work as compared with a conventional concrete block.

Furthermore, since it is possible to accurately and horizontally support the bottom surface of the groove at a predetermined height and to prevent falling due to loss of balance, it is not necessary to receive assistance from other workers. It is possible to provide a method for manufacturing a reinforcing bar structure of a concrete foundation that can be accurately and surely assembled even by one person.

[Brief description of drawings]

FIG. 1 is a perspective view showing a left-right direction reinforcing bar (a mounting table) for holding a front-rear direction reinforcing bar provided in a horizontal portion located below a reinforcing bar structure of the present invention.

FIG. 2 is a perspective view showing a positioning device of the present invention.

FIG. 3 is a perspective view showing a reinforcing bar structure of a concrete foundation according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a reinforcing bar structure of a concrete foundation according to another embodiment of the present invention.

FIG. 5 is a perspective view showing a reinforcing bar structure of a concrete foundation according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a reinforcing bar structure of a concrete foundation according to another embodiment of the present invention.

FIG. 7 is a sectional front view showing a reinforcing bar structure of a concrete foundation according to another embodiment of the present invention.

FIG. 8 is a perspective view showing a conventional reinforcing bar structure of a concrete foundation.

[Explanation of symbols]

10 ... Positioning block 11 ... Horizontal part 12 ... Longitudinal direction rebar 13, 15 ... Left-right direction rebar 16 ... Vertical part 17 ... Front-rear direction rebar 18 ... Vertical direction rebar 23 ... Left-right direction rebar 24 ... Engagement part 28 ... Vertical rebar 29 ... Fixed part 30, 40, 50, 60, 70 ... Reinforcing bar structure 33, 43 ... Horizontal direction reinforcing bar 38, 48 ... Vertical direction reinforcing bar 110, 120, 130, 140 ... Mounting stand 112, 122, 132, 142, 145 ... Left and right Directional reinforcing bar 113, 143 ... Leg part 114, 124, 134, 144 ... Engaging part 210, 220, 230, 240 ... Positioning device 212, 222, 232, 242 ... Left-right direction reinforcing bar 250 ... Positioning device 252 ... Left-right direction reinforcing bar 258 ... Vertical rebar (positioning rod) 260 ... Positioning device 262 ... Horizontal rebar 263 ... Leg 264 ... Engagement 2 68 ... Vertical rebar (positioning rod) 269 ... Fixed part

Claims (20)

[Claims] 1. A plurality of front-rear direction reinforcing bars which are arranged vertically are provided on a horizontal portion on which a plurality of front-rear direction reinforcing bars which are arranged side by side and a plurality of horizontal reinforcing bars which are arranged side by side are fixed. In a rebar structure of a concrete foundation in which vertical parts to which a plurality of vertical rebars are fixed are connected, the rebar structure is formed by connecting and fixing a horizontal reinforcing bar to a horizontal reinforcing bar and a fixing part formed below a vertical vertical bar. A positioning device integrally formed in an inverted T shape or an L shape as a whole is arranged at a predetermined position, and the vertical portion forms an engaging portion for engaging the vertical reinforcing bar with the longitudinal reinforcing bar. , The vertical reinforcing bars are engaged with the front-rear reinforcing bars to hold the vertical reinforcing bars at predetermined positions of the front-rear reinforcing bars, and the horizontal part has an engaging part where the front-rear reinforcing bars engage with the left-right reinforcing bars. Form the front and rear Reinforced structure of concrete foundation, characterized in that holding the lateral direction reinforcing bar engages in a direction reinforcing bar at a predetermined position in the longitudinal direction rebar. 2. A positioning device in which leg portions are vertically provided on both left and right sides of a horizontal reinforcing bar of the horizontal portion in order to prevent the reinforcing bar structure from falling and to horizontally support the horizontal portion at a predetermined height. The reinforcing bar structure of the concrete foundation according to claim 1, characterized in that 3. The mounting structure having a plurality of engaging portions for engaging front-rear direction reinforcing bars on the lower side of the reinforcing bar structure, and leg portions provided on both the left and right sides of the horizontal reinforcing bars in the horizontal portion. A gantry is arranged at a predetermined position, and each engaging portion formed on the gantry is engaged with and supported by a front-rear direction reinforcing bar on the lower side of the reinforcing bar structure, and is prevented from falling. In addition, the horizontal portion is horizontally supported at a predetermined height, and the reinforcing bar structure of the concrete foundation according to claim 1 or 2. 4. The reinforcing bar of concrete foundation according to claim 1, wherein the engaging part on the horizontal reinforcing bar of the horizontal part of the positioning device is a U-shaped bent part. Construction. 5. The engaging portion formed at both ends of the horizontal reinforcing bar of the horizontal portion of the positioning device is an L-shaped or V-shaped bent portion. Reinforcement structure of concrete foundation described in. 6. The reinforcing bar for a concrete foundation according to claim 3, wherein the engaging portion formed on the horizontal reinforcing bar of the gantry is a U-shaped bent portion. Construction. 7. An engaging part formed at both ends of the reciprocating bar of the gantry in the left-right direction is an L-shaped or V-shaped bent part, according to any one of claims 3 to 6. Reinforcement structure of the concrete foundation described. 8. The reinforcing bar of concrete foundation according to claim 1, wherein the engaging part on the vertical reinforcing bar of the vertical part of the positioning device is a horizontal U-shaped bent part. Construction. 9. The reinforcing structure of concrete foundation according to claim 1, wherein a fixing part provided on a vertical reinforcing bar of a vertical part of the positioning device is bent into an L shape. . 10. An engaging portion for inserting the front-rear reinforcing bar is formed in the left-right reinforcing bar, the engaging portion is engaged with the front-rear reinforcing bar, and the left-right reinforcing bar held at a predetermined position of the front-rear reinforcing bar is vertically moved. 2. The positioning device according to claim 1, wherein a fixing portion formed on a lower portion of the direction reinforcing bar is connected and fixed to integrally form an inverted T shape or an L shape as a whole. 11. A leg portion is vertically provided on both left and right sides of the left-right direction reinforcing bar, thereby preventing a fall and supporting the horizontal portion horizontally at a predetermined height. Positioning device. 12. The engaging portion on the left and right reinforcing bars is a U-shaped bent portion.
The positioning device according to any one of 1. 13. The positioning device according to claim 10, wherein the engaging portions formed at both ends of the horizontal reinforcing bars are L-shaped or V-shaped bent portions. 14. The positioning device according to claim 10, wherein the engaging portion on the vertical reinforcing bar is a lateral U-shaped bent portion. 15. The fixing portion provided on the vertical reinforcing bar is bent in an L shape.
The positioning device according to any one of 1. 16. A mounting table having a plurality of engaging portions with which the front-rear direction reinforcing bars on the lower side of the reinforcing bar structure are engaged, and legs for horizontally supporting a horizontal portion at a predetermined height. Engaging the engaging portion formed on the front-rear direction reinforcing bar on the lower side of the reinforcing bar structure, and mounting the front-rear direction reinforcing bar, thereby preventing falling and supporting the horizontal part horizontally at a predetermined height. The mounting table according to claim 3, wherein: 17. The horizontal reinforcing bar according to claim 16, wherein the engaging portion which engages with the longitudinal reinforcing bar on the horizontal reinforcing bar is a U-shaped bent portion. 18. The left-right direction according to claim 16 or 17, characterized in that the engaging portions formed at both ends of the left-right direction reinforcing bar are L-shaped or V-shaped bent portions. Rebar. 19. A front and rear side-by-side front-rear direction rebars which are vertically arranged on a horizontal portion on which a plurality of front-rear-direction rebars arranged side by side and a plurality of left-and-right direction rebars side-by-side are fixed. In a method for manufacturing a reinforcing steel structure of a concrete foundation, in which vertical parts, to which a plurality of vertical reinforcing bars are fixed, are connected, a horizontal reinforcing bar having at least three engaging portions formed at both ends of the center and left and right, and the horizontal reinforcing bar An engaging portion to be engaged,
In order to connect and fix to the horizontal reinforcing bars, it includes a fixing portion formed on the lower side and a leg portion that horizontally supports the horizontal portion at a predetermined height, and is integrally formed in an inverted T shape or an L shape as a whole. Positioning device, arranged at a predetermined position on the floor, insert a long front-rear direction reinforcing bar to each engaging portion, respectively, including the step of fixing the relative position of the front-rear direction reinforcing bars of the concrete foundation of the reinforcing bar structure Production method. 20. A manufacturing method for manufacturing the reinforcing bar structure, comprising: a plurality of engaging parts with which the lower longitudinal reinforcing bars of the reinforcing bar structure are engaged; and leg parts for supporting the horizontal part horizontally at a predetermined height. A mounting table configured to include and is disposed at a predetermined position on the floor, long front-rear reinforcing bars are inserted into each engaging portion, and the relative position of the front-rear reinforcing bars is fixed. Manufacturing method of reinforced concrete structure.