JPH02140348A - Iron reinforcement unit and arranged reinforcement construction method - Google Patents

Abstract

PURPOSE:To improve workability and economize construction cost by assembling a longitudinal reinforcement unit by integrally forming a plurality of inside and outside longitudinal reinforcements and iron reinforcement supporting bodies and assembling a lateral reinforcement unit similarly. CONSTITUTION:A plurality of iron reinforcement supporting frame bodies 2 which cross with each longitudinal reinforcement 1 are arranged in parallel to the longitudinal reinforcement axis direction between a plurality of inside longitudinal reinforcement 1 arranged in parallel to the inside part in the reinforcement arrangement position and a plurality of outside longitudinal reinforcement arranged in parallel to the outside part in the reinforcement arrangement position. Then, the longitudinal reinforcements 1 are connected with each other with the degree of freedom in the longitudinal reinforcement axis direction and the radial direction, and a longitudinal reinforcement unit A is assembled. Then, a lateral reinforcement unit B is assembled similarly from a plurality of lateral reinforcements 6 and iron reinforcement supporting body 4. The longitudinal reinforcement units A are continuously arranged in the lateral and vetical directions at the reinforcement arrangement position, and the longitudinal reinforcement unit A and the lateral reinforcement unit B are connected by crossing- arranging the lateral reinforcement 6 of the lateral reinforcement unit B and the longitudinal reinforcement 1 of the longitudinal reinforcement unit A.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a reinforcing bar unit and a reinforcing method used for reinforcing work for foundations, columns, walls, etc. in large structures such as the construction of nuclear power plants. It is related to.

[Prior art] Recently, in reinforcement work for large structures such as nuclear power plants, large diameters of 32 to 511M have been used in order to improve structural characteristics such as earthquake resistance, rationalize reinforcement work, and save labor. Reinforced steel tends to be used more frequently.

Here, the procedure of a conventional wall reinforcement construction method for a large structure will be explained with reference to FIG. 19.

(1) Scaffolding 100 is erected at positions facing the inside and outside of the construction position of the wall.

(2) A steel frame 101 for attaching vertical reinforcements is erected between the legs 100 at a position corresponding to the center of the wall in the thickness direction.

(3) Vertical bars fixed on both the inside and outside of the steel frame 101 mentioned above 1
Install 02.

(4) The plurality of vertical reinforcements 103 are suspended by the vertical reinforcement lifting jig 104, and are lifted by a lifting rope 105 of a crane or the like and transported to a predetermined reinforcement position.

Note that there are cases where the vertical reinforcements 103 are lifted one by one using the final suspension jig 106 and transported to a predetermined reinforcement position.

(5) At the reinforcement position described above, each vertical reinforcement 103 is suspended from the jig 104 or the jig 106, and
The lower end of 03 is attached to the insert bar 1 which is protruded from the I foundation 107 in advance.
Connect to the upper end of 08. At this time, the longitudinal reinforcement 103 and the insertion reinforcement 108 are made of threaded reinforcing bars, and both 103, 10
8, a joint member 109 with screw holes corresponding to the threaded joints on their surfaces, and a pair of upper and lower lock nuts (not shown)
Connect by.

(6) After binding and fixing the upper part of each of the vertical bars 103 one by one to the vertical bar fixing step material 102 using a binding line, each vertical bar 1
Remove the jig 104 or jig 106 from the upper end of 03. As a result, the vertical load of the longitudinal reinforcement 103 is reduced to 0 at the joint.
The horizontal load is supported by the vertical reinforcement fixing step material 102, and each vertical reinforcement 10
3 will become stable and independent.

(7) By repeating the operations (4) to (6) above on the inside and outside of the wall, the required number of lowest vertical reinforcements 103 are arranged at a constant pitch in the left-right direction.

(8) Also, on the inside and outside of the wall, in the same manner as in (4) to (7) above, connect the lower end of the upper vertical reinforcement 103 to the upper end of the lower vertical reinforcement 103 with the joint member 109 and the upper and lower pair. They are connected by lock nuts 1 to (not shown), and the upper part of the upper vertical reinforcement 103 is tied to the upper vertical reinforcement fixing step material (not shown) using a binding line.Hereafter, by repeating this, the vertical reinforcement 103 is The vertical reinforcements 103 are sequentially connected in the vertical direction, and the reinforcement arrangement of the vertical reinforcements 103 is completed.

(9) After fixing the vertical reinforcement 103, the scaffold 100 and the reinforcement 1
08 and each floor of the scaffolding 100 are lifted one by one by several workers.
The vertical strips 103 are tied at a predetermined height position with a binding wire at a constant pitch in the vertical direction, and the ends of the horizontal strips 110 adjacent in the left-right direction (horizontal strip axial direction) are tied in a state where they are partially overlapped. Bind and connect with wire.

By the steps (1) to (9) above, a predetermined number of vertical reinforcements 103 and horizontal reinforcements 110 are arranged in a mesh on the inside and outside of the wall.

[Problem to be solved by the invention]

According to the above conventional construction method, there are the following problems.

■ Since the vertical reinforcements 103 on the inside of the wall and the vertical reinforcements 103 on the outside are arranged separately, work efficiency is poor, and even if the vertical reinforcements 103
Even in the case of reinforcing by lifting multiple pieces of 3 at a time, the number of times the crane, etc. must be used to lift the reinforcing rods increases, and the time occupied by the crane, etc. for reinforcing is long, which can interfere with formwork erection and other work. , a significant reduction in the construction period cannot be expected.

■ In order to make each vertical reinforcement 103 stable and self-supporting,
After connecting the lower ends of the vertical reinforcements 108 or lower vertical reinforcements 103, it is necessary to tie the upper parts of all the vertical reinforcements 103 one by one to the vertical reinforcement fixing setup +J 102 with binding wires. It is necessary to erect the steel frame 101 for attaching the reinforcements and the stepped members 102 for fixing the vertical reinforcements, which is very complicated and requires a lot of labor, and the work of arranging the vertical reinforcements 103 requires a long time (long period of time). However, the construction cost will increase.

■ When arranging the horizontal reinforcement 110, the horizontal reinforcement 110 (
Diameter: 32~51M1-Length: 8~1υL (2~101g) is lifted one by one by several people to place the reinforcement, which requires a lot of labor and takes a long time to do the work. (a long period of time), and together with the prolongation of the reinforcement work for the vertical reinforcements 103 described in (2) above, the construction period becomes extremely long and the construction cost increases.

■ The work of arranging the horizontal reinforcements 110 is often done in narrow spaces, resulting in poor workability and danger, which poses a major safety problem.

■ When connecting the horizontal reinforcements 110, it is desirable from the viewpoint of structural mechanics to connect them so that they are continuous on the same axis like the vertical reinforcements 103, but in the conventional construction method, several people are required to connect the horizontal reinforcements 110 one by one. Since the reinforcing bars are arranged in a lifted state, it is extremely difficult to butt the ends of adjacent transverse bars 100 to match the pitch of the screw joints, and it is difficult to connect them on the same axis.

For this reason, in the past, the ends of the horizontal reinforcements 110 are partially overlapped and tied together using a binding line, but this method of partially overlapping and tying them has a problem with the strength due to the reinforcement structure of the wall. In addition, an extra horizontal strip 110 is required for the overlap, resulting in a large loss of the horizontal strip 110, which is uneconomical.

■ In order to arrange the horizontal reinforcement 110 one by one, the horizontal reinforcement 110
Variations in vertical pitch and parallelism are likely to occur. In particular, in the case of reinforcing cylindrical structures, transverse reinforcement curved in an arc is used, but when arranging the arc-shaped transverse reinforcement, the direction of curvature of the transverse reinforcement tends to be uneven (X tends to occur, resulting in decreased strength and quality). Problems such as this arise.

The present invention has been made to solve these problems, and it is possible to efficiently arrange vertical and horizontal reinforcement, streamline reinforcement work, and save labor, thereby shortening the construction period and reducing construction costs. The purpose of the present invention is to provide a reinforcing bar unit and a reinforcing bar arrangement method that can reduce the cost of reinforcing bars, uniformize bar arrangement, increase strength, and improve quality.

[Means for Solving the Problems] The present invention provides a structure in which a plurality of reinforcing bars arranged in parallel at a predetermined pitch and a plurality of reinforcing bar supports arranged in parallel at a predetermined interval in the axial direction of the reinforcing bars are mutually arranged. (1), and each reinforcing bar is connected to each reinforcing bar support in the axial direction and radial direction at the intersection with a certain degree of freedom. .

In this configuration, when each reinforcing bar is used as a vertical reinforcement in the vertical direction, when it is used as a horizontal horizontal reinforcement arranged in parallel at a predetermined pitch in the vertical direction, and when the horizontal reinforcement is curved in a planar arc shape. etc.

With the above configuration, a plurality of reinforcing bars, that is, vertical or horizontal bars, are made into a unit, which facilitates handling and contributes to rationalization of reinforcement work and labor saving.

Further, the present invention provides a structure in which a pair of inner and outer frame members arranged at a predetermined interval in the thickness direction of a structure are connected by a connecting member to constitute a reinforcing bar support frame body of a predetermined size, and a plurality of the above-mentioned reinforcing bars The support frames are arranged at predetermined intervals in the longitudinal direction of the longitudinal reinforcement, and each reinforcement support frame has at least two longitudinal reinforcement attachment parts corresponding to both sides of the inner and outer parts of the structure,
A plurality of inner longitudinal reinforcements and a plurality of outer longitudinal reinforcements are arranged so as to intersect each reinforcing bar support frame at a predetermined pitch, and each inner longitudinal reinforcement and each outer longitudinal reinforcement are held respectively. The present invention relates to a reinforcing bar unit that is connected to each reinforcing bar support frame body by metal fittings and connectors with a moderate degree of freedom in the longitudinal bar axis direction and radial direction.

In this configuration, each vertical bar attachment part of the reinforcing bar support frame may be linear, and each vertical bar may be arranged on the straight line at a predetermined pitch, or each vertical bar attachment part of the reinforcing bar support frame may be arranged in a straight line at a predetermined pitch. may be curved into an arc, and each vertical stripe may be arranged at a predetermined pitch on the arc. The former is used for so-called box-shaped structures, and the latter is used for cylindrical structures.

According to the above configuration, it is possible to combine a plurality of inside vertical reinforcements and a plurality of outside vertical reinforcements into a unit, which makes handling easier, and when arranging the reinforcement, the lower part of each vertical reinforcement By simply connecting the reinforcing bars or lower vertical bars, the bars can be stably made to stand on their own, improving work efficiency during reinforcing, streamlining,
It can contribute to labor saving.

Furthermore, the present invention provides a plurality of inner vertical reinforcements arranged in parallel at a predetermined pitch on the inside of the reinforcement position, and a plurality of inner longitudinal reinforcements arranged in parallel at a predetermined pitch on the outside of the reinforcement position. A plurality of reinforcing bar support frames intersecting each longitudinal bar are arranged parallel to each other at predetermined intervals in the vertical bar axis direction between the external longitudinal bars, and each longitudinal bar is connected to each reinforcing bar supporting frame. A vertical reinforcement unit is assembled by connecting the longitudinal reinforcements with a moderate degree of freedom in the axial and radial directions, and on the other hand, a plurality of horizontal reinforcements arranged in parallel at a predetermined pitch and a predetermined interval in the axial direction of the horizontal reinforcements are assembled. A transverse reinforcement unit is created by connecting each transverse reinforcement to each reinforcing reinforcement support with a moderate degree of freedom in the axial and radial directions while intersecting multiple reinforcement supports arranged in parallel. Next, the vertical reinforcement unit is transported to a predetermined reinforcement position with its vertical reinforcement in the vertical direction, and the vertical reinforcement is placed at the upper end of the lower vertical reinforcement that has been fixed in advance at that reinforcement position. Connect the lower ends of the vertical bars of the units, arrange multiple vertical bar units so that they are continuous in the horizontal and vertical directions at the reinforcement position, and then move the multiple horizontal bar units to the predetermined reinforcement position. By transferring the horizontal reinforcement units and arranging each horizontal reinforcement unit in the vertical direction so as to intersect with each vertical reinforcement unit of the vertical reinforcement unit at a fixed pitch in the vertical direction, the vertical reinforcement unit and the horizontal reinforcement unit are connected. , each unit 1-
This relates to a reinforcement construction method in which longitudinal and horizontal reinforcement are arranged in a manner that they intersect.

In this construction method, a vertical reinforcement unit assembled in a planar rectangular shape and a horizontal reinforcement unit assembled using direct horizontal reinforcements may be used, or a vertical reinforcement unit assembled in a planar arc shape and a horizontal reinforcement unit assembled in an arc shape are used. In some cases, a transverse reinforcement unit assembled using a transverse reinforcement unit is used. The former is a reinforcement construction method for so-called box-shaped structures, and the superior method is a reinforcement construction method for cylindrical structures.

According to this construction method, a vertical reinforcement unit is assembled in advance by ground work by integrating multiple inside vertical reinforcements, multiple outside vertical reinforcements, and a reinforcing bar support frame, and also a vertical reinforcement unit is assembled with multiple horizontal reinforcement bars and reinforcing bars. By integrating the support and assembling the transverse reinforcement unit,
Each unit can be easily assembled with each vertical strip and each horizontal strip in a horizontal state, and workability during assembly can be improved. Moreover, when arranging the reinforcement, it is possible to efficiently arrange multiple vertical reinforcements using vertical reinforcement units, and the lower end of each vertical reinforcement can be connected to the lower vertical reinforcement, that is, the insertion reinforcement or the vertical reinforcement of the lower vertical reinforcement unit. It can be made to stand on its own in a stable manner, and the conventional steel frame for attaching vertical bars and tiering for fixing vertical bars can be omitted.Furthermore, by using a horizontal reinforcement unit, multiple horizontal reinforcements can be efficiently arranged, and horizontal reinforcement There is no variation in the pitch, parallelism, etc. of the reinforcement, making it possible to rationalize reinforcement work and significantly save labor, significantly shortening the construction period and reducing construction costs.

〔Example〕

Embodiments of the present invention will be sequentially explained with reference to FIGS. 1 to 18.

■Assembling the vertical reinforcement unit A First, as shown in FIG. 1, a plurality of unit assembly jigs 82, for example three, each having a plurality of reinforcing bar supporting recesses 81 at a predetermined pitch in the left-right direction on the upper surface are assembled into a unit. stand 8
The reinforcing bar holding fittings 3 are individually supported on the jigs 82, which are arranged at predetermined intervals in the front-rear direction (reinforcing bar axial direction).

As is clear from FIGS. 4 and 6, the reinforcing bar holding fittings 3 are formed by bending a steel band having a predetermined width, and hold a plurality of reinforcing bars that are curved into a U-shaped cross section at a predetermined pitch in the longitudinal direction. The reinforcing bar holding portions 31 are supported by the recesses 81 of the jig 82 on their back surfaces with the reinforcing bar holding portions 31 opened upward.

This reinforcing bar holding fitting 3 can be easily produced in a factory or the like.

Next, in a laid down state (horizontal state), the plurality of vertical reinforcements 1 for the inside of the structure are engaged and supported at several locations in the longitudinal direction by the reinforcing bar holding portions 31 of each of the reinforcing bar holding fittings 3, so that each vertical reinforcing steel 1 is Lines 1 are arranged in parallel at a constant pitch. Thereafter, each reinforcing bar support frame 2 is placed on this vertical bar 1 at a location corresponding to each reinforcing bar holding fitting 3 in an upright state intersecting with the vertical bar 1 with its front surface (vertical bar attachment part) 24 facing downward. Then, the reinforcing bar holding fittings 3 are connected to the lower surface, that is, the front surface 24 of each of these reinforcing bar support frames 2 by means of a plurality of connectors 32 such as bolts (see FIG. 4).

The reinforcing bar support frame 2 is formed into a substantially rectangular shape by connecting a pair of front and rear (upper and lower in FIG. 1) frame members 21 and 22 and a plurality of connecting members 23 by welding or connecting bolts. The above connection work is performed with the front surface 24 facing downward. For the frame members 21 and 22 and the connecting member 23, channel steel, angle steel, H-beam steel, etc. are used. This reinforcing bar support frame 2
can be easily mass-produced in advance at a factory or the like.

Next, a plurality of vertical reinforcements 1 for the outside of the structure are placed on the upper surface, that is, the back surface (vertical reinforcement attachment part) 25 of each reinforcing bar support frame 2.
are arranged at a constant pitch so as to be parallel to the vertical bars 1 on the lower side (front side) and intersect with the reinforcing bar support frame 2, and on the upper side (back side)
A reinforcing bar holding fitting 3 similar to that described above is arranged at a location corresponding to the reinforcing bar support frame 2 on the vertical bar 1 of
After each vertical reinforcement 1 is engaged with each other, each reinforcing bar holding fitting 3 is connected to the upper surface, ie, the back surface 25, of the reinforcing bar support frame 2 using a plurality of connectors (not shown) such as bolts.

As a result, as shown in FIGS. 2 to 6, a plurality of reinforcing bar support frames 2 are arranged in parallel at predetermined intervals in the vertical direction.
A vertical reinforcement unit A is assembled on the front surface 24 and rear surface 25 of the vehicle, in which vertical reinforcements 1 are supported in a state in which they are arranged parallel to each other at a constant pitch in the left-right direction.

In this case, by forming the reinforcing bar holding part 31 of the reinforcing bar holding fitting 3 in advance to be larger than the diameter of the reinforcing bar, that is, the longitudinal bar 1, each longitudinal bar 1 can be given an appropriate degree of freedom in the longitudinal bar axis direction and radial direction. To support. However, after the above-mentioned assembly, this vertical reinforcement unit A is used with the entire unit raised up so that the axial direction of the vertical reinforcement 1 is in the vertical direction, so the vertical reinforcement 1 and the reinforcing bar support frame 2 are Configure it to prevent it from falling. As a means for this, generally a reinforcing bar having threaded joints 11 (see Figs. 13 and 14) on its surface is used as the vertical reinforcement 1, so the drop-prevention nut 12 leaking the screw corresponding to the threaded joint 11 is used. Screw them into several places on each of the vertical bars 1 above. This nut 12 may or may not be split into two. Further, since this nut 12 can be freely rotated as required, the degree of freedom of the vertical strip 1 is not impaired.

In the vertical reinforcement unit A, one lock nut 13 for connection and a joint member 14 are fitted to one end, for example, the lower end of each vertical reinforcement 1, in order to improve workability during later reinforcement arrangement. The other lock nut 1 for connection at the end, for example, the upper end.
5 is preferably fitted.

The above vertical reinforcement unit A is assembled by ground work at the reinforcement construction site, with each vertical reinforcement 1 laid down horizontally (1), so even if each vertical reinforcement 1 is a large diameter reinforcing bar, it can be easily assembled. be able to.

■Assembling the transverse bar unit B As shown in Figs. 7 to 10, the transverse bar unit B is made up of a plurality of vertical reinforcing bar supports 4 and reinforcing bar holding fittings 5 arranged in parallel at predetermined intervals in the left and right direction. , is formed by supporting a plurality of horizontal horizontal reinforcements 6 arranged in parallel at a predetermined pitch, and is assembled in the same manner as the vertical reinforcement unit A shown in FIG. .

In this case, the reinforcing bar support 4 is a bar-shaped thing formed of channel steel, H-beam steel, angle steel, etc., and has a simpler structure than the substantially rectangular reinforcing bar support frame 2 in the vertical reinforcement unit A. has been made into

In addition, the reinforcing bar holding fitting 5 is the reinforcing bar holding fitting 3 for the vertical bar 1.
It has the same structure as , has a plurality of reinforcing bar holding parts 51 that are curved in a U-shaped cross section at a predetermined pitch in the longitudinal direction, and each reinforcing bar holding part 51 is formed larger than the diameter of the horizontal reinforcement 6, and the holding part 51
With the horizontal reinforcements 6 engaged, the reinforcing bar holding fittings 5 are connected to the reinforcing bar supports 4 using connectors 52 such as bolts (see Fig. 10), thereby connecting each horizontal reinforcement 6 in the axial and radial directions. hold with a degree of freedom.

In this horizontal reinforcement unit B, each horizontal reinforcement 6 is arranged vertically at a predetermined pitch in a horizontal state, and since this horizontal reinforcement unit B is lifted and constructed in the above-mentioned horizontal state, the horizontal reinforcement unit B is Even if the nut 12 for preventing falling off is omitted, the falling off of the horizontal reinforcement 6 can be prevented only by the frictional resistance between the horizontal reinforcement 6 and the reinforcing bar holding portion 51. Note that if there is a possibility of hanging at an angle, a nut or the like may be provided to prevent falling off, as in the case of a vertical reinforcement unit. Reference numeral 41 denotes a hanging fitting such as an eye bolt, which is detachably attached to the upper end of each reinforcing bar support 4.

In addition, in the horizontal reinforcement unit B, similar to the case of the vertical reinforcement unit A, reinforcing bars with threaded joints are used for the horizontal reinforcement 6, and one end of each horizontal reinforcement 6 is For example, it is desirable to fit one of the lock nuts 61 for connection and the joint member 62 at the right end, and to fit the other lock nut 63 for connection at the other end, for example, the left end. In this way, lock nuts 61.6 are attached to both ends of the horizontal strip 6 in advance.
3 and the joint member 62 will help prevent the horizontal reinforcement 6 from falling off.

The assembly of this transverse bar unit B is also carried out on the ground at a small reinforcement T site with each transverse bar 6 laid down horizontally, so even if each transverse bar 1 is a large-diameter reinforcing bar, transverse bar unit B can be easily assembled.

(2) Vertical reinforcement work As shown in FIG. 11, scaffolds 73 are set up in advance at positions facing the inside and outside of the construction location of the structure. and,
The vertical reinforcement units 1-8 assembled in the above process are lifted up by a lifting lobe 83 of a crane or the like and transported to a predetermined reinforcement position.

Next, at the reinforcement position, while the vertical reinforcement unit A is suspended by the rope 83, each vertical reinforcement 1 of this unit A is
As shown in FIGS. 13 and 14, the lower end of the bar is connected to the upper end of the lower longitudinal bar, that is, the insert bar 7 with threaded joints 71, which is provided in advance to protrude from the foundation 72. At this time, the joint member 14 and the pair of lock nuts 13 and 15 are fitted and held in advance at the lower end of the vertical reinforcement 1, and the lock nuts 13 and 15 are moved to a predetermined reinforcement position. After fitting the joint member 14 to both the vertical reinforcement 1 and the insertion reinforcement 7,
Tighten and secure with the upper and lower lock nuts 13 and 15. Note that the lower lock nut 15 may be fitted and held in the insert bar 7 in advance.

In this way, the required number of vertical reinforcement units A are arranged so as to be continuous in the left and right direction of the structure, and each vertical reinforcement 1 is connected and fixed to each insert reinforcement 7 by the joint member 14 and the lock nut 13.15, and the adjacent Reinforcing bar support frame 2 of vertical bar unit A
As shown in FIG.
The reinforcement is arranged at a constant pitch in the left and right direction. Thereafter, in the same manner as above, the upper vertical reinforcement units A are sequentially arranged on the lower vertical reinforcement units A, and the vertical reinforcements 1 corresponding to each other are connected via the joint member 14 and the lock nuts 13 and 15. By sequentially connecting, the required number of vertical reinforcements 1 are arranged so as to be continuous in the vertical direction.

Note that the upper w1 muscle unit A is the lower longitudinal muscle unit A.
The vertical reinforcement unit 8 is arranged by shifting it in the left and right direction by a predetermined distance (for example, half a unit pitch) using the bricklaying method, and connecting the upper vertical reinforcement unit 8 to straddle the lower two adjacent vertical reinforcement units A. You can do it like this.

In the above-mentioned reinforcement work of the vertical reinforcement 1, when connecting the vertical reinforcement 1 and the insertion reinforcement 7, and the longitudinal reinforcement 1, each vertical reinforcement 1 is appropriately moved in the axial direction and radial direction of the reinforcement with respect to each reinforcement support frame 2. Since each longitudinal bar 1 is supported with a degree of freedom, by appropriately moving each longitudinal bar 1 in the axial direction and radial direction, or rotating the longitudinal bar 1 by an appropriate angle around its own axis, the vertical bar 1 and the insert bar 7 can be moved.
It is possible to easily match the pitches of the threaded joints 11 and 71 of the threaded joints 11 and the threaded U joints 11 of the vertical bars 1, and to efficiently perform the connection work.

Moreover, since the plurality of vertical reinforcements 1 on the inside of the wall and the plurality of vertical reinforcements 1 on the outside are connected to the reinforcing bar support frame 2 to form a unit, a plurality of vertical reinforcements 1 are provided inside and outside the wall. You can arrange reinforcement one by one, and just connect the lower end of each vertical reinforcement 1 to the upper end of insert reinforcement 7 or the upper end of the 5th vertical reinforcement 1 as described above.
Each longitudinal muscle 1 can be stabilized and made independent. Therefore, there is no longer a need to bind and fix the upper part of the vertical reinforcement to the vertical reinforcement fixing beam or the YN bone for attaching the vertical reinforcement as in the past, and there is no need to erect the vertical reinforcement reinforcement or the steel frame for attaching the vertical reinforcement. This means that the work for arranging vertical reinforcement 1 can be greatly saved, and the time required for arranging vertical reinforcement 1 can be greatly reduced.

IV. Reinforcement work for horizontal reinforcements After completing the reinforcement of the vertical reinforcements 1 above, or after arranging the required number of vertical reinforcements 1, the horizontal reinforcement unit B assembled in step ① above is hoisted up by a lifting loaf 84 such as a crane, and placed at the predetermined position. Transfer to the reinforcement position.

Next, at the reinforcement position, as shown in FIGS. 10 and 12, the horizontal reinforcement unit
The lower ends of the reinforcing bar supports 4 are connected. On the other hand, in the upper part of the horizontal strip unit B, as shown in FIG. 16 and FIG. The horizontal reinforcement unit B is prevented from falling by attaching the locking tool 18 and locking the horizontal reinforcement 6 to the locking tool 18.

In this way, the required number of transverse reinforcement units B are arranged so as to be continuous in the left-right direction of the structure, and the ends of the transverse reinforcements 6 that are adjacent to each other in the axial direction of the transverse reinforcement are connected to the joint member 62 and the lock nut 6.
According to 1.63, connect in the same way as the connection of the vertical bars 1 above,
Thereafter, the upper transverse reinforcement units B are sequentially placed on the lower transverse reinforcement units B, and the vertically corresponding reinforcing bar supports 4 are sequentially connected via connectors 42 such as poles 1-. Thereafter, by repeating the above operations, a required number of horizontal reinforcements 6 are arranged so as to intersect with the vertical reinforcements 1 at a constant pitch in the vertical direction and continuous in the horizontal direction. And the above vertical line 1
After arranging the horizontal reinforcements 6, the vertical reinforcement unit A and the horizontal reinforcement unit B, that is, each vertical reinforcement 1 and each horizontal reinforcement 6, are connected to each other by binding several points of their intersections with binding wires, etc., and the reinforcement is arranged. Finish your work.

When arranging the horizontal reinforcements 6, the multiple horizontal reinforcements 6 can be lifted and placed together while being held in a horizontal state parallel to each other at a constant pitch in the vertical direction. Compared to the case where the reinforcements are placed one by one by lifting, the work efficiency can be greatly improved, and the work can be done safely even when the distance between the vertical reinforcements 1 and the scaffolding 73 is narrow. In addition, when connecting the ends of each horizontal reinforcement 6, each horizontal reinforcement 6 is supported with an appropriate degree of freedom in the reinforcing bar axial direction and radial direction with respect to each reinforcing bar support 4, so that each horizontal reinforcement 6 is ! By appropriately moving or rotating in the oil direction and radial direction, the pitch of the thread joints of each transverse reinforcement 6 can be easily adjusted,
There is no need to overlap the ends of each horizontal reinforcement 6 as in the conventional method, and the horizontal reinforcements 6 can be properly connected so that they are continuous on the same axis, and reinforcement can be efficiently arranged without the reinforcement loss required in the conventional method. , which can also contribute to increased strength.

Incidentally, in the above embodiment, the reinforcement arrangement of the wall of a so-called box-shaped structure has been described, but the present invention can also be applied to the reinforcement arrangement of the arcuate wall of a cylindrical structure.

When arranging reinforcement for an arcuate wall, as shown in FIG.
are each curved into a planar arc shape, and the front surface 2 of the arc shape is
4 and the back surface 25, a plurality of vertical bars 1 are arranged at a constant pitch, and a reinforcing bar holding fitting 3 is curved in an arc shape.
The vertical reinforcement unit Δ is supported by the same means as in the above embodiment, and the entire vertical reinforcement unit Δ is formed into a planar arc shape. Further, the horizontal reinforcements 6 are curved into a planar arc shape, and the plurality of horizontal reinforcements 6 are connected to the reinforcing bar support 4.
It is supported by a reinforcing bar holding fitting 5 in the same manner as in the above embodiment. Thereafter, reinforcement is arranged in the same work process as in the above embodiment.

In this way, each vertical reinforcement 1 can be arranged in an accurate planar arc shape, and in particular, when arranging the horizontal reinforcement 6, variations occur in the vertical pitch, parallelism, and direction of curvature of the horizontal reinforcement 6. Reinforcement can be efficiently arranged without any problems, and it is now possible to easily uniformize, rationalize, and save labor for reinforcing in arc-shaped structures, which has been difficult in the past.

In the above embodiment, when connecting the vertical bars 1 and the horizontal bars 6 to the reinforcing bar support frame 2 and the reinforcing bar support 4, the reinforcing bar support frame 2
A reinforcing bar holding part may be formed on the side and the reinforcing bar support 4 side, and the reinforcing bar holding fittings 3 and 5 may be formed in a flat shape.
and 5 may be provided with corresponding reinforcing bar holding parts.

In addition, in the vertical reinforcement unit A, vertical reinforcements 1 are arranged in plural rows in the front and back on each of the front 24 side and the back 25 side of the reinforcing bar support frame 2.
may be arranged. Furthermore, the front surface 24 of the reinforcing bar support frame 2
There are multiple vertical stripes 1 not only on the back 25 but also on both the left and right sides.
may be arranged and supported at a constant pitch in the longitudinal direction (thickness direction of the structure).

In addition, in the present invention, the longitudinal muscle unit A is divided by t in the front and back.
It may be formed by L. In this case, in order to make the front and rear vertical reinforcement units stable and self-supporting, a steel frame for attaching the vertical reinforcements, etc., as in the past, will be provided, but the vertical reinforcement 1 for the inside of the structure and the vertical reinforcement 1 for the outside will be installed separately. Since they are connected together in advance via the front and rear reinforcing bars support frames, there is no need to tie all the vertical bars 1 to the above steel frame, and it is only necessary to fasten any number of vertical bars 1 to the above steel frame. Therefore, this alone can sufficiently improve work efficiency. Moreover, in this case, rationalization and labor saving are possible by using the transverse reinforcement unit B in combination.

The present invention is not limited to the walls of the box-shaped structures and cylindrical structures of the above-mentioned embodiments, but can also be applied to reinforcing the foundations and columns of various large-scale structures.

〔Effect of the invention〕

As described above, the present invention is a unit in which a plurality of reinforcing bars, that is, vertical or horizontal bars, are integrated in advance via a reinforcing bar support, and by using this unit, the reinforcing bars can be easily handled and arranged. It can contribute to improved workability and labor savings during muscle training.

Further, as in claim 7, by integrating the plurality of vertical reinforcements for the inside of the structure and the plurality of vertical reinforcements for the outside of the structure in advance through a reinforcing bar support to form a unit, A large amount of vertical reinforcement can be efficiently transferred and arranged in a stable state,
It is easier to handle, and in particular, when arranging vertical reinforcement, it can be made stable and self-supporting by simply connecting the lower part of each vertical reinforcement to the lower vertical reinforcement, that is, the insertion reinforcement or the vertical reinforcement of the lower vertical reinforcement unit. Workability when arranging longitudinal reinforcement can be greatly improved.

Furthermore, as a reinforcement construction method, a vertical reinforcement unit is assembled in advance by ground work by integrating multiple inside vertical reinforcements, multiple outside vertical reinforcements, and a reinforcing bar support frame. By integrating the reinforcing bar supports and assembling a horizontal reinforcement unit, by transporting these vertical reinforcement units and horizontal reinforcement units to the predetermined reinforcement positions and placing the reinforcement, the vertical reinforcement units and each horizontal reinforcement unit can be placed horizontally when assembling the unit. It can be easily assembled in this state, and workability during assembly can be improved. Moreover, when arranging the reinforcement, it is possible to efficiently arrange multiple vertical reinforcements one by one using a vertical reinforcement unit, and the lower end of each vertical reinforcement can be connected to the lower vertical reinforcement, that is, the insertion reinforcement, or the vertical reinforcement of the lower vertical reinforcement unit. It can be made to stand on its own in a stable manner, and the conventional steel frame for attaching the vertical bars and the step-up material for fixing the vertical bars can be omitted.

Furthermore, using the transverse reinforcement unit, it is possible to efficiently arrange multiple transverse reinforcements one by one, and there is no variation in pitch, parallelism, etc. of the transverse reinforcements, making it possible to efficiently arrange reinforcement even for cylindrical structures. Reinforcement can be placed, rationalizing the reinforcement work and greatly saving labor, making it possible to significantly shorten the construction period and significantly reduce construction costs.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the assembled state of the vertical reinforcement unit according to the present invention, Fig. 2 is a schematic front view of the longitudinal reinforcement unit, Fig. 3 is a schematic plan view thereof, and Fig. 4 is a detailed plan view of the same main part. , FIG. 5 is a schematic side view of the same, FIG. 6 is a detailed side view of the essential parts, FIG. 7 is a schematic front view of the reinforcement unit according to the present invention, FIG. 8 is a schematic side view of the same, and FIG. 9 is a schematic side view of the same. 10 is a detailed side view of the same essential parts, FIG. 11 is a conceptual diagram showing the construction state by the reinforcement arrangement method according to the present invention, FIG. 12 is a schematic front view showing the reinforcement arrangement state, and FIG. 13 and 14 are a front view and a sectional view showing the means for connecting the longitudinal reinforcement and the insert reinforcement, FIG. 15 is a detailed plan view of the main part showing the means for connecting the longitudinal reinforcement units, and FIGS. 16 and 17. 18 is a schematic plan view showing another embodiment, and FIG. 19 is a schematic perspective view without showing the state of dripping by the conventional reinforcement construction method. It is a diagram. △...Vertical muscle unit, B...Horizontal muscle unit, 1...
・Vertical bars, 2... Rebar support frame (for vertical bars), 3... Rebar holding fittings, 4... Rebar support (for horizontal bars), 5...
Rebar holding bracket, 6... horizontal bar, 7... insert bar, 8...
・Workbench, 21° 22...Frame material, 23...Connecting material,
24... Front (reinforcing bar attachment part), 25... Back (reinforcing bar attachment part), 31.51... Rebar holding part. Fig. 1 Fig. Fig. Fig. Section 1] Fig. Fig. Fig. 9

Claims (1)

[Claims] 1. A plurality of reinforcing bars arranged in parallel at a predetermined pitch;
A plurality of reinforcing bar supports arranged parallel to each other at predetermined intervals in the axial direction of the reinforcing bars intersect with each other, and at the intersection, each reinforcing bar supports each reinforcing bar in the axial direction and radial direction appropriately. A reinforcing bar unit characterized in that the reinforcing bar unit is connected with a degree of freedom of . 2. Each of the above reinforcing bars is arranged in the vertical direction to form a vertical bar,
2. The reinforcing bar unit according to claim 1, wherein each reinforcing bar support is arranged horizontally. 3. The reinforcing bar unit according to claim 1, wherein each of the reinforcing bars is arranged horizontally in parallel at a predetermined pitch in the vertical direction to form a horizontal reinforcement, and each reinforcing bar support is arranged in the vertical direction. . 4. The reinforcing bar unit according to claim 3, wherein each of the reinforcing bars is a horizontal horizontal reinforcing bar curved in a planar arc shape. 5. Each of the above-mentioned reinforcing bars is connected to each reinforcing bar support via a reinforcing bar holding fitting and a connecting device, and the reinforcing bar holding fitting is made of a steel band of a predetermined width, and has a plurality of bars curved in a U-shape in cross section at a predetermined pitch in the longitudinal direction. The reinforcing bar unit according to any one of claims 1 to 4, characterized in that a reinforcing bar holding portion is formed. 6. The reinforcing bar unit according to any one of claims 1 to 5, wherein each of the reinforcing bars is a threaded reinforcing bar. 7. A pair of inner and outer frame members arranged at a predetermined interval in the thickness direction of the structure are connected by a connecting member to constitute a reinforcing bar support frame of a predetermined size, and a plurality of the above reinforcing bar support frames are vertically connected. A plurality of longitudinal bars are arranged at a predetermined interval in the reinforcement axis direction, and are arranged at a predetermined pitch in the two longitudinal reinforcement attachment parts corresponding to at least the inner side of the structure and the outer side of the structure of each reinforcing bar support frame. The inner longitudinal bars and the plurality of outer longitudinal bars are arranged to intersect each reinforcing bar support frame, and
Each inner longitudinal reinforcement and each outer longitudinal reinforcement are connected to each reinforcing bar support frame by a holding metal fitting and a connecting device with a moderate degree of freedom in the axial direction and radial direction of the longitudinal reinforcement. Rebar unit. 8. Each vertical reinforcement attachment part of the reinforcing bar support frame is curved in an arc shape, and a plurality of vertical reinforcements are arranged at a predetermined pitch along each of the arc-shaped vertical reinforcement attachment parts. The reinforcing bar unit according to claim 7. 9. The holding metal fitting is made of a steel band having a predetermined width, and a plurality of reinforcing bar holding parts curved in a U-shape in cross section are formed at a predetermined pitch in the longitudinal direction. rebar unit. 10. A plurality of inner longitudinal reinforcements arranged in parallel at a predetermined pitch on the inside of the reinforcement position, and a plurality of outer longitudinal reinforcements arranged in parallel at a predetermined pitch on the outside of the reinforcement position. A plurality of reinforcing bar support frames that intersect with each longitudinal bar are arranged parallel to each other at predetermined intervals in the longitudinal bar axis direction, and each longitudinal bar is aligned with the vertical bar axis relative to each reinforcing bar supporting frame. A vertical reinforcement unit is assembled by connecting with a moderate degree of freedom in the direction and radial direction, and on the other hand, multiple horizontal reinforcement units are arranged in parallel at a predetermined pitch, and horizontal reinforcement units are arranged in parallel at a predetermined interval in the axial direction. A transverse reinforcement unit is assembled by connecting each transverse reinforcement to each reinforcement support with a moderate degree of freedom in the axial and radial directions while intersecting with a plurality of reinforcement supports, and then , the vertical reinforcement unit is transported to a predetermined reinforcement position with its vertical reinforcement in the vertical direction, and the vertical reinforcement of the vertical reinforcement unit is placed at the upper end of the lower vertical reinforcement that has been fixed in advance at that reinforcement position. Connect the lower ends and arrange multiple vertical reinforcement units so that they are continuous in the horizontal and vertical directions at the reinforcement position, then transport the multiple horizontal reinforcement units to a predetermined reinforcement position, and then By connecting the vertical reinforcement unit and the horizontal reinforcement unit while arranging each horizontal reinforcement of the horizontal reinforcement unit so as to intersect with each vertical reinforcement of the vertical reinforcement unit at a constant pitch in the vertical direction at the reinforcement position, each unit can be A reinforcement construction method characterized by arranging vertical and horizontal reinforcement in a manner that they intersect. 11. The reinforcement arrangement method according to claim 10, characterized in that the vertical reinforcement unit is assembled into a rectangular planar shape, and the horizontal reinforcement unit is assembled using linear horizontal reinforcement. 12. By using a reinforcing bar support frame in which the vertical reinforcement attachment part is formed in an arc shape as a whole, and by arranging a plurality of vertical reinforcements at a predetermined pitch along the arc, a vertical reinforcement unit with a planar arc shape is created. 11. The reinforcing reinforcement construction method according to claim 10, wherein the assembling method comprises assembling a planar arc-shaped transverse reinforcement unit using arcuately curved transverse reinforcements.